A wireless communication system (1) comprises a closed system (11) and a cloud system (21). A closed system (11) comprises: a call control server (12) that controls communications of wireless stations (41, 42) connected to a closed network (10) and an Internet network (20), respectively; a closed-side gateway server (13) that transmits a registration request from the wireless station (41) to the call control server (12) and transmits a registration response from the call control server (12) to the wireless station (41); and a closed-side DNS server (14) that performs name resolution upon receiving a name resolution request from the wireless station (41). The cloud system (21) comprises a cloud-side gateway server (22) that transmits a registration request from the wireless station (42) to the call control server (12) and transmits a registration response from the call control server (12) to the wireless station (42).
H04W 40/02 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court
H04L 61/4511 - Répertoires de réseauCorrespondance nom-adresse en utilisant des répertoires normalisésRépertoires de réseauCorrespondance nom-adresse en utilisant des protocoles normalisés d'accès aux répertoires en utilisant le système de noms de domaine [DNS]
H04W 4/00 - Services spécialement adaptés aux réseaux de télécommunications sans filLeurs installations
H04W 40/24 - Gestion d'informations sur la connectabilité, p. ex. exploration de connectabilité ou mise à jour de connectabilité
H04W 60/00 - Rattachement à un réseau, p. ex. enregistrementSuppression du rattachement à un réseau, p. ex. annulation de l'enregistrement
A wireless communication system (1) comprises a closed system (11) and a cloud system (21). The closed system (11) comprises call control servers (12) that control the communication of wireless stations (41, 42) respectively connected to a closed network (10) and an internet network (20), closed-side gateway servers (13), and a closed-side DNS server (14) that performs name resolution. The same domain name is assigned to a plurality of closed-side gateway servers (13) that are associated with the same call control server (12). The closed-side DNS server (14) selects one among a plurality of closed-side devices corresponding to the same domain name, in accordance with at least one of the route to the wireless station (41) and the operation status, and transmits a name resolution response including the address of the selected closed-side device to the wireless station (41).
H04W 24/04 - Configurations pour maintenir l'état de fonctionnement
H04L 61/4511 - Répertoires de réseauCorrespondance nom-adresse en utilisant des répertoires normalisésRépertoires de réseauCorrespondance nom-adresse en utilisant des protocoles normalisés d'accès aux répertoires en utilisant le système de noms de domaine [DNS]
H04W 4/00 - Services spécialement adaptés aux réseaux de télécommunications sans filLeurs installations
H04W 40/02 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court
H04W 40/24 - Gestion d'informations sur la connectabilité, p. ex. exploration de connectabilité ou mise à jour de connectabilité
H04W 60/00 - Rattachement à un réseau, p. ex. enregistrementSuppression du rattachement à un réseau, p. ex. annulation de l'enregistrement
A wireless station includes a switching instruction acceptor, a position determiner, a mode selector, a signal processing circuit, and a communicator. The position determiner determines, with respect to at least one area that indicates a geographical range associated with one of telecommunication modes of the wireless station, whether or not the wireless station is located within one of the areas. When the switching instruction acceptor accepts an instruction of switching to a transmission mode, the mode selector selects a first telecommunication mode of an area within which the wireless station is determined to be located or a second telecommunication mode in a case where the wireless station is not located within any of the areas. The signal processing circuit generates, from an input signal, transmission data matching a telecommunication mode selected by the mode selector.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
To provide a communication terminal capable of carrying out appropriate switching between a plurality of communication methods. A communication terminal includes: a call control section which controls calling carried out by an IP wireless processing section for IP wireless communication and an IP telephone processing section for IP telephone calling. The call control section carries out control so that (a) in a case where IP wireless communication calling is carried out by a main body-side speaker and a main body-side microphone at the time when a handset is brought into an off-hook state, IP wireless communication calling is carried out by the handset and (b) in a case where IP wireless communication is not carried out at the time when the handset is brought into an off-hook state, IP telephone calling is carried out by the handset.
To provide a communication terminal capable of easily determining which of calling via IP wireless communication and calling via IP telephone communication to use. A communication terminal includes: a main body-side codec which decodes an output signal from a call control section and outputs the decoded output signal to a main body-side speaker and which encodes an input signal from a main body-side microphone and the encoded input signal to the call control section; and a handset-side codec which decodes an output signal from the call control section and outputs the decoded output signal to a handset-side speaker and encodes an input signal from a handset-side microphone and inputs the encoded input signal to the call control section.
G10K 11/175 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets d'interférenceMasquage du son
H04L 65/1069 - Établissement ou terminaison d'une session
A detector included in a radio station detects a signal level, at a designated transmission frequency, of a real signal obtained as a result of digitally converting an electric signal derived from a radio wave captured by an antenna by applying a time window specified according to a length of time of a beacon used in wireless communication to the real signal. A determiner determines whether a transmission band containing the transmission frequency is used for the wireless communication from the detected signal level.
A frequency selector included in a radio station selects a target frequency for carrier sensing from within a bandwidth of one of a plurality of subcarriers for a channel specified for wireless communication in accordance with Orthogonal Frequency Division Multiplexing, at least a portion of the bandwidth of the one of the subcarriers being within a transmission band. A detector detects a signal level, at the target frequency, of a real signal obtained as a result of digitally converting an electric signal derived from a radio wave captured by an antenna. A determiner determines whether the transmission band is used for the wireless communication from the signal level.
In a wireless device that can easily change a volume depending on whether a hands-free call function of the wireless device is on or off. The wireless device provided with a volume knob that changes the volume value according to the rotation angle of the knob, a volume change key that changes the volume value by pressing the key, and a hands-free call function on/off switching key that turns the hands-free call function on and off, and a controller for controlling the wireless device. The controller monitors whether the hands-free call function is on or off, and when the hands-free call function is on, the volume can be changed by operating the volume knob, and when the hands-free call function is off, the volume can be changed by operating the volume change key.
H04M 1/72466 - Interfaces utilisateur spécialement adaptées aux téléphones sans fil ou mobiles comportant des moyens de sélection, p. ex. des touches, dont les fonctions sont déterminées par le mode ou l’état dans lequel se trouve le dispositif
H04M 1/60 - Équipement de sous-station, p. ex. pour utilisation par l'abonné comprenant des amplificateurs de parole
9.
RADIO DEVICE, COMMUNICATION CONTROL METHOD, AND STORAGE MEDIUM
A radio device includes: a plurality of operation terminals each of which is provided with a unique ID and each of which is configured to perform an operation related to a task for digital selective calling (DSC) communication; an ID changing section configured to, when one of the plurality of operation terminals is selected, (i) change the ID of the operation terminal selected to a high-priority ID indicating that the operation terminal selected is allowed to preferentially perform the DSC operation and (ii) change the IDs of the other operation terminals unselected among the plurality of operation terminals to non-high-priority identifiers other than the high-priority ID; and an execution section configured to accept an operation performed by the operation terminal provided with the high-priority ID and execute the task.
A switching device includes: a transmission path configured to transmit a transmission signal; a reception path configured to transmit a reception signal; a main-path switching part configured to perform switching of paths so as to connect one of two radio devices to the transmission path and connect the other of the two radio devices to the reception path; and a command output section configured to output a permission command that permits the radio device connected to the transmission path to perform transmission and configured to output a prohibition command that prohibits the radio device connected to the reception path from performing transmission.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04B 7/08 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station de réception
11.
Frequency control assist device, frequency control device, and radio device
A frequency control assist device is configured to: calculate an average value of pulse numbers each of which is a pulse number of a reference signal generated by an oscillator in one cycle of a PPS signal generated based on a GPS signal, from a total of the pulse numbers counted for a time period whose length is a predetermined number times the one cycle, the average value being an average value of the pulse numbers each for the one cycle; and every time a deviation between a specified value of a reference frequency of the reference signal and the average value falls below a target value, reduce the target value from the current value and increase, from the current value, the predetermined number that specifies the time period for obtaining the total of the pulse numbers from which the average value is to be calculated by an averaging circuit.
Provided is a communication system that enables smooth wireless communication. A communication system (1) includes a communication terminal (20) and a microphone (10) connected to each other. The microphone includes a microphone element (11) which converts a voice to an electric signal and a PTT switch (12) which switches between transmitting or not transmitting the electric signal to the communication terminal. The communication terminal includes a VOX determination section (232) and an operation sound determination section (233), each of which determines a level of the electric signal, and a transmission control section (234) which controls transmission of the electric signal in accordance with the level.
H04M 1/72409 - Interfaces utilisateur spécialement adaptées aux téléphones sans fil ou mobiles avec des moyens de soutien local des applications accroissant la fonctionnalité par interfaçage avec des accessoires externes
A gateway device (30) relays voice communication between a communication terminal to be connected to a closed network (10) and a communication terminal to be connected to a LAN (20). The gateway device (30) includes a closed network communicator (31) connected to the closed network (10), a communication relay (32) to perform encapsulation or decapsulation of data for enabling voice communication between the closed network (10) and the LAN (20), and a LAN communicator (33) connected to the LAN (20).
09 - Appareils et instruments scientifiques et électriques
Produits et services
Alcoholmeters; thermometers not for medical purposes;
electronic carbon dioxide monitors, other than for medical
purposes; carbon dioxide detectors; measuring or testing
machines and instruments; battery chargers; AC adapters;
electrical adapters; power distribution or control machines
and apparatus; solar batteries; batteries and cells;
electric or magnetic meters and testers; USB cables;
telecommunication cables; electric wires and cables;
antennas [aerials]; loudspeakers; earphones; microphones;
bone conduction earphones; network routers; conference
phones; local area network [LAN] access points; radio
repeaters; portable radio communication machines and
apparatus; aeronautical radio communication machines and
apparatus; vehicular radio communication machines and
apparatus; marine radio communication machines and
apparatus; radio communication machines and apparatus; radio
machines and apparatus; parts and accessories for
telecommunication machines and apparatus; telecommunication
machines and apparatus; headsets; computer network hubs;
webcams; personal digital assistants; communication hubs;
computer peripheral devices; computer hardware; computer
networking hardware; computer programs.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Alcoholmeters; thermometers not for medical purposes; electronic carbon dioxide monitors, other than for medical purposes; carbon dioxide detectors; battery chargers; AC power adapters; electrical adapters; solar batteries; batteries; electric or magnetic meters and testers, namely, phase indicators, antenna parameter measuring apparatus, frequency meters, voltmeters, ammeters, wattmeters, and ohmmeters; USB cables; telecommunication cables; electric wires and cables; antennas; aerial antennas; loudspeakers; earphones; microphones; bone conduction earphones; network routers; conference phones; local area network (LAN) access points; radio repeaters; portable radio communication machines and apparatus, namely, radios, radiotelephones, radio transceivers, radio receivers, radio transmitters, and radio signal tuners; aeronautical radio communication machines and apparatus; vehicular radio communication machines and apparatus, namely, radios, radiotelephones, radio transceivers, radio receivers, radio transmitters, and radio signal tuners; marine radio communication machines and apparatus; radio communication machines and apparatus, namely, radios, radiotelephones, radio transceivers, radio receivers, radio transmitters, and radio signal tuners; radio machines and apparatus, namely, radios, radiotelephones, radio transceivers, radio receivers, radio transmitters, and radio signal tuners; structural parts and accessories for telecommunication machines and apparatus; telecommunication machines and apparatus, namely, radios, radiotelephones, radio transceivers, radio receivers, radio transmitters, and radio signal tuners; headsets; computer network hubs; webcams; personal digital assistants; communication hubs; computer peripheral devices; computer hardware; computer networking hardware; downloadable computer programs for communicating with radio communication machines and apparatus; recorded computer programs for communicating with radio communication machines and apparatus; downloadable computer programs for operating radio communication machines and apparatus; recorded computer programs for operating radio communication machines and apparatus
09 - Appareils et instruments scientifiques et électriques
Produits et services
Alcoholmeters; thermometers not for medical purposes;
electronic carbon dioxide monitors, other than for medical
purposes; carbon dioxide detectors; measuring or testing
machines and instruments; battery chargers; ac adapter;
electrical adapters; power distribution or control machines
and apparatus; solar batteries; batteries and cells;
electric or magnetic meters and testers; usb cables;
telecommunication cables; electric wires and cables;
antennas [aerials]; loudspeakers; earphones; microphones;
bone conduction earphones; network routers; conference
phones; local area network [lan] access points; radio
repeaters; portable radio communication machines and
apparatus; aeronautical radio communication machines and
apparatus; vehicular radio communication machines and
apparatus; marine radio communication machines and
apparatus; radio communication machines and apparatus; radio
machines and apparatus; parts and accessories for
telecommunication machines and apparatus; telecommunication
machines and apparatus; headsets; computer network hubs;
webcams; personal digital assistants; communication hubs;
computer peripheral devices; computer hardware; computer
networking hardware; computer programs.
25.
Voice communication system, voice communication method, and voice communication program
Provided is a voice communication system that notifies a terminal device of transmission restriction information when the number of received voice signals reaches a predetermined number. A server device continuously counts the number of simultaneously received voice signals. A first terminal device transmits, to the server device, a voice signal with identification information of a second terminal device. The server device transfers, to the second terminal device, the voice signal transmitted from the first terminal device. However, when the number of simultaneous receptions of the voice signals reaches a predetermined restriction value, the server device transfers, to the second terminal device, the received voice signal with transmission restriction information attached thereto. The second terminal device does not transmit a voice signal, even if a user performs a transmission operation, during reception of the voice signal with the attached transmission restriction information.
This invention realizes a communication system that enables smooth wireless communication. A communication system (1) includes a communication terminal (20) and a microphone (10) connected to each other. The microphone comprises: a microphone element (11) that converts speech to electric signals; and a PTT switch (12) that switches whether to transmit the electric signals to the communication terminal. The communication terminal comprises: a VOX determination unit (232) and an operation sound determination unit (233) that determine the level of the electric signals; and a transmission control unit (234) that controls the transmission of the electric signals according to the level thereof.
There is provided a relay apparatus that enables a communication voice of a specific communication terminal to be tracked and recorded. A call from a communication terminal results in establishment of a communication session in which the calling communication terminal and a called communication terminal are regarded as participating terminals. Transmission of a voice signal from any of the participating terminals in the established communication session allows the voice signal to be transmitted, together with session information, to the other participating terminal in the same communication session. A virtual device is associated with the communication terminal, and the communication terminal and the virtual device establish a virtual communication session. In the virtual communication session, the voice signal transmitted from the communication session to the virtual device is recorded in a communication monitor.
A wireless system includes a control device and a wireless communication device. The control device switches between a control-side access point mode and a control-side station mode. In the control-side access point mode, the control device receives a connection request from the wireless communication device to establish a connection and, in the control-side station mode sends a connection request to the wireless communication device to establish a connection. The control device sends a sleep command or a wake-up command to the wireless communication device with which the connection is established.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04W 84/12 - Réseaux locaux sans fil [WLAN Wireless Local Area Network]
A server system including a plurality of servers achieves redundancy on a per process basis. A first server and a second server execute a plurality of processes in parallel. Processes (B1-1, B2-1, and Br-1) in the first server are active processes, and processes (B1-2, B2-2, and Br-2) in the second server are standby processes. The active process periodically transmits an operation notification notifying normal operation, to the standby process. When no longer receiving an operation notification from the active process, the standby process switches an operation mode of the standby process from a standby mode to an active mode and starts provision of service of the process. The process switching is performed on a per process basis instead of on a per server basis.
c) configured to set a transmission output power value for communication performed on a conversation channel by the DSC communication section to a value corresponding to a distance, which is calculated based on the information, between the communication device and a communication target vessel.
Provided is a server system robust against a communication path failure. A first server system 2-1 and a second server system 2-2 are respectively installed on a first network 3-1 and a second network 3-2 provided by common carriers different from each other. The first and second server systems are connected to each other by a dedicated line 6. Even when a failure occurs in the first network, communication through the second network can be maintained, and even when a failure occurs in the second network, communication through the first network can be maintained. Further, when a failure occurs in the dedicated line, operations can be performed within each of the first and second networks in a degeneracy mode.
H04L 41/0668 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau par sélection dynamique des éléments du réseau de récupération, p. ex. le remplacement par l’élément le plus approprié après une défaillance
H04L 43/0811 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux en vérifiant la disponibilité en vérifiant la connectivité
H04L 65/1069 - Établissement ou terminaison d'une session
35.
Communication device and method for controlling same
A communication device includes: a display section; an AIS receiving section configured to receive automatic identification system (AIS) information; a list creating section configured to create, based on the AIS information about vessels existing in the vicinity of the communication device, a proximity order list in which pieces of specific information for identifying the vessels are arranged in increasing order of proximity to the communication device; and a display control section configured to, when the submersion of the communication device has been detected, control the display section so that the display section displays the proximity order list and so that any one of the pieces of specific information at the top of the proximity order list is in a selected state.
A gateway device (30) relays voice communications between a communication terminal connected to a closed network (10) and a communication terminal connected to a LAN (20). The gateway device (30) is provided with: a closed network communication unit (31) connected to the closed network (10); a communication relay unit (32) which performs encapsulation or decapsulation of data for enabling voice communication between the closed network (10) and the LAN (20); and a LAN communication unit (33) connected to the LAN (20).
09 - Appareils et instruments scientifiques et électriques
Produits et services
Radio repeaters; portable radio communication machines and
apparatus; aeronautical radio communication machines and
apparatus; vehicular radio communication machines and
apparatus; marine radio communication machines and
apparatus; radio communication machines and apparatus; radio
machines and apparatus; telecommunication machines and
apparatus; parts and accessories for telecommunication
machines and apparatus; personal digital assistants;
computer programs.
43.
Relaying device and method of recording voice communication
[Problem] Provided is a relaying device that can track and record a communicated voice of a specific communication terminal using a mixing function of the relaying device.
[Solution] When a communication terminal has made a call, a communication session in which the communication terminal that has made a call and a communication terminal that has been called are participating terminals is established. When a voice signal is transmitted from one participating terminal of the established communication session, this voice signal is transmitted to the other participating terminal(s) of the same communication session along with session information. A virtual device is associated with a communication terminal, and is registered in a communication session in which the communication terminal participates as a participating terminal together with the communication terminal. A communication monitoring unit records a voice signal transmitted to the virtual device from the communication session.
[Problem] Provided is a relaying device that can track and record a communicated voice of a specific communication terminal using a mixing function of the relaying device.
[Solution] When a communication terminal has sent a call packet to call another at least one communication terminal, a communication session in which this communication terminal that has made a call and a communication terminal that has been called are participating terminals is established. In the communication session, voice communication is relayed by transferring a voice signal which is transmitted from the participating terminals to another at least one communication terminal. A virtual device is registered as a participating terminal of the communication session and the voice signal which is transmitted from the communication session to the virtual device is recorded in the relaying device.
H04M 3/56 - Dispositions pour connecter plusieurs abonnés à un circuit commun, c.-à-d. pour permettre la transmission de conférences
H04M 3/22 - Dispositions de supervision, de contrôle ou de test
H04M 7/12 - Dispositions d'interconnexion entre centres de commutation pour l'exploitation entre centraux comportant différents types d'équipement de commutation, p. ex. à entraînement mécanique et pas à pas ou décimal et non décimal
[Problem] When a communication apparatus that is the communication partner is called via a relay device, the transmission control mode of a voice signal can be switched according to the capability of the communication partner.
[Solution] A relay device (2) includes a telephone relay unit (3), a network communication relay unit (4), and a wireless communication relay unit (5). The wireless communication relay unit (5) includes a plurality of external apparatus interfaces, and an analog repeater (25), a digital repeater (27), or the like is connected to each external apparatus interface. If an SIP telephone (20) has called an analog transceiver (27), the relay device (2) obtains the address and apparatus type of the analog transceiver (27) from call information, and transmits a voice signal to the analog transceiver (27) using a transmission control mode (VOX mode) that suits the analog transceiver (27).
H04L 65/65 - Protocoles de diffusion en flux de paquets multimédias, p. ex. protocole de transport en temps réel [RTP] ou protocole de commande en temps réel [RTCP]
H04L 65/75 - Gestion des paquets du réseau multimédia
H04L 65/1045 - Mandataires, p. ex. pour le protocole d'initiation de session [SIP]
H04L 65/1104 - Protocole d'initiation de session [SIP]
09 - Appareils et instruments scientifiques et électriques
Produits et services
Radio repeaters; portable radio communication machines and
apparatus; aeronautical radio communication machines and
apparatus; vehicular radio communication machines and
apparatus; marine radio communication machines and
apparatus; radio communication machines and apparatus; radio
machines and apparatus; telecommunication machines and
apparatus; parts and accessories for telecommunication
machines and apparatus; personal digital assistants;
computer programs.
09 - Appareils et instruments scientifiques et électriques
Produits et services
radio repeaters; portable radio communication machines and apparatus; aeronautical radio communication machines and apparatus; vehicular radio communication machines and apparatus; marine radio communication machines and apparatus; radio communication machines and apparatus; radio machines and apparatus, namely radiotelephones, transceivers, IP transceivers, wireless LAN transceivers, cellular network transceivers; telecommunication machines and apparatus, namely radiotelephones, transceivers, IP transceivers, wireless LAN transceivers, cellular network transceivers; parts and accessories for telecommunication machines and apparatus, namely, microphones, audio speakers, headphones, batteries, battery packs, battery chargers, power supplies, amplifiers, transmitters, modulators, demodulators, remote controllers for transceivers, antennas, antenna tuners, headsets, wireless headsets, switches, alarms, electrical connectors, mounting brackets adapted for transceivers, mounting bases adapted for transceivers and straps adapted for transceivers; personal digital assistants; downloadable computer programs for communicating with radio communication machines and apparatus; recorded computer programs for communicating with radio communication machines and apparatus; downloadable computer programs for operating radio communication machines and apparatus; recorded computer programs for operating radio communication machines and apparatus
48.
Wireless station and method of correcting frequency error
A wireless station includes at least one oscillator to output a reference signal, and an error calculator to calculate a frequency of the reference signal and calculate a frequency error by subtracting a target frequency of the reference signal from the calculated frequency of the reference signal. The wireless station further includes a modulation data generator to generate modulation data by adding a correction value, varying in negative correlation with the frequency error calculated by the error calculator, to data to be transmitted, and a modulator to conduct frequency modulation on the basis of the modulation data and the reference signal.
H03D 3/22 - Démodulation d'oscillations modulées en angle en détectant la différence de phase entre deux signaux obtenus à partir du signal d'entrée au moyen d'éléments actifs à plus de deux électrodes auxquelles sont appliqués deux signaux dérivés du signal à démoduler et ayant une différence de phase reliée à la déviation de fréquence, p. ex. détecteur de phase
H04L 27/22 - Circuits de démodulationCircuits récepteurs
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
[Problem] To provide a voice communication system that notifies a terminal device of transmission restriction information when the number of received voice signals reaches a prescribed number. [Solution] A server device continuously counts the number of simultaneously received voice signals. A first terminal device transmits, to the server device, a voice signal with identification information of a second terminal device. The server device transfer, to the second terminal device, the voice signal transmitted from the first terminal device. However, when the number of simultaneously received signals reaches a prescribed restriction value, the server device transfers, to the second terminal device, the received voice signal with transmission restriction information attached thereto. The second terminal device does not transmit the voice signal, even if a user performs a transmission operation, during reception of the voice signal with the attached transmission restriction information.
Provided is a method for, upon transmission of a DSC message being instructed, enabling quick start of the transmission. The method includes; (1) instructing, upon transmission of the DSC message being instructed, an antenna tuner to start tuning regardless of whether being busy or not, and switching an antenna from reception to transmission after the tuning is completed, (2) performing busy check, and standing by for a time period defined in the standard, when a reception signal in a transmission channel is no longer a dot pattern, and executing these processes (1) and (2) in parallel.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
A charging holder for electronic devices is shared for a plurality of electronic devices having different thickness, and is stably fixed even under vibration conditions. The holder has a holder body, a rotation block and a lock unit. A pocket for inserting an electronic device is formed in the holder body. The rotation block is rotated and biased so that a tip portion can protrude inside the pocket, and has a contact terminal which can contact a charging terminal of the electronic device. The lock unit is for locking the upper side of the electronic device to the holder body when the electronic device is pushed into the pocket and rotated. The rotation block is configured so that the lower part of the electronic device can be inserted therein, holds the lower part of the electronic device regardless of the thickness of the electronic device.
H01M 10/46 - Accumulateurs combinés par structure avec un appareil de charge
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60R 11/02 - Autres aménagements pour tenir ou monter des objets pour postes radio, de télévision, téléphones, ou objets similairesDisposition de leur commande
53.
RELAY DEVICE AND VOICE COMMUNICATION RECORDING METHOD
[Problem] To provide a relay device which makes it possible to track and record communication voice of a specific communication terminal. [Solution] When there is a call from a communication terminal, this relay device establishes a communication session involving a calling communication terminal and a called communication terminal as participating terminals. When a voice signal is transmitted from a participating terminal in the established communication session, the relay device transmits the voice signal together with session information to another participating terminal in the same communication session. The relay device associates a virtual device with a communication terminal, and establishes a virtual communication session using the communication terminal and the virtual device. In the virtual communication session, the relay device records a voice signal transmitted from the communication session to the virtual device by a communication monitor unit.
H04M 3/56 - Dispositions pour connecter plusieurs abonnés à un circuit commun, c.-à-d. pour permettre la transmission de conférences
H04M 11/10 - Systèmes de communication téléphonique spécialement adaptés pour être combinés avec d'autres systèmes électriques avec systèmes d'enregistrement et de reproduction de dictée
[Problem] To achieve redundancy in process units, using a server system having a plurality of servers. [Solution] A first server and a second server execute a plurality of processes in parallel. First server processes (B1-1, B2-1, Br-1) are operating processes and second server processes (B1-2, B2-2, Br-2) are standby processes. The operating processes regularly send operation notifications that notify normal operation, to the standby processes. If operation notifications are no longer received from the operating processes, the standby processes switch their own operation mode from standby mode to operate mode and start providing the services for those processes. The switching of these processes occur in process units, not server units.
H04L 12/703 - Prévention ou récupération du défaut de routage, p.ex. reroutage, redondance de route "virtual router redundancy protocol" [VRRP] ou "hot standby router protocol" [HSRP]
G06F 11/07 - Réaction à l'apparition d'un défaut, p. ex. tolérance de certains défauts
G06F 11/20 - Détection ou correction d'erreur dans une donnée par redondance dans le matériel en utilisant un masquage actif du défaut, p. ex. en déconnectant les éléments défaillants ou en insérant des éléments de rechange
56.
VOICE COMMUNICATION SYSTEM AND REDUNDANCY METHOD FOR CALL CONTROL SERVER
[Problem] To make a server system robust against failure in a communication path. [Solution] A first server system 2-1 and a second server system 2-2 are installed on a first network 3-1 and a second network 3-2 of different communication carriers, respectively. These first and second server systems are connected to each other by a dedicated line 6. Even if failure occurs in the first network, it is possible to maintain communication through the second network, and even if failure occurs in the second network, it is possible to maintain communication through the first network. Furthermore, if failure occurs in the dedicated line, it is possible to perform operation in a degeneration mode in each of the first and the second networks.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Wireless communications equipment; transceivers;
walkie-talkies; communication receivers; radio frequency
receivers; radiotelephones; marine-band transceivers;
wireless communications equipment for marine-band; radios;
marine radio communication machines and apparatus.
A signal processing device includes an A-D converter and a controller. The A-D converter converts an analog signal to a digital signal in which portions where the amplitude exceeds a predetermined range are clipped. A counter of the controller calculates, for the digital signal, a number of clipped samples for each predetermined number of period samples. A frequency converter performs frequency conversion of the digital signal. An LPF removes high frequency components of the digital signal. A rate converter converts a sampling rate of the A-D converter. A digital amplifier amplifies and outputs the digital signal. An amplification factor adjuster multiplies a preset amplification factor of the digital amplifier by an amplification factor adjustment coefficient based on a ratio of the number of regular samples to the number of period samples, to adjust the amplification factor.
A wireless communication device converts a signal component, which has one of distributed frequency bands in an analog RF signal and passes through one of a plurality of bandpass filters, into digital data with an AD converter that carries out undersampling. A sampling frequency of the AD converter is set so that frequencies which are integral multiples of a Nyquist frequency based on the sampling frequency do not fall within frequency bands of signal components which are of the RF signal and are to pass through the respective plurality of bandpass filters.
[Problem] Provided is a relay device that can internally record communication voice by use of a mixing function of the relay device. [Solution] Upon reception, from a communication terminal, of a call packet for calling another communication terminal, a communication session is established with the calling communication terminal and the called communication terminal as participating terminals. In the communication session, communication is relayed by transferring an audio signal transmitted from a participating terminal to the other participating terminal. A virtual device is registered as a participating terminal of the communication session, and an audio signal addressed and transmitted to the virtual device from the communication session is recorded inside the device.
[Problem] To provide a relay device configured such that a mixing function of the relay device can be used to track and record the communication audio of a specific communication terminal. [Solution] When there is a call from a communication terminal, a communication session is established with the calling communication terminal and a called communication terminal being participating terminals. When an audio signal is sent from a participating terminal of the established communication session, the audio signal is transmitted together with session information to the other participating terminal of the same communication session. A virtual device is associated with the communication terminal and is registered together as a participating terminal in the communication session in which the communication terminal is participating. A communication monitor records an audio signal transmitted from the communication session to the virtual device.
[Problem] To enable a voice signal transmission control system to be switched in accordance with the function of a communication partner when calling a communication device of the communication partner across a relay apparatus. [Solution] A relay apparatus 2 is provided with a telephone relaying unit 3, a network communication relaying unit 4, and a wireless communication relaying unit 5. The wireless communication relaying unit 5 is provided with a plurality of external device interfaces, and an analog repeater 25, a digital repeater 27, or the like is connected to each of the external device interfaces. When a call is issued from an SIP telephone 20 to an analog transceiver 27, the address and device type of the analog transceiver 27 are inferred from call information, and a voice signal is transmitted to the analog transceiver 27 by a transmission control system (VOX system) suited to the analog transceiver 27.
H04M 3/00 - Centraux automatiques ou semi-automatiques
H04M 3/42 - Systèmes fournissant des fonctions ou des services particuliers aux abonnés
H04W 4/18 - Conversion de format ou de contenu d'informations, p. ex. adaptation, par le réseau, des informations reçues ou transmises pour une distribution sans fil aux utilisateurs ou aux terminaux
[Problem] To enable priority communication using a terminal device by setting a particular mode in the terminal device by user operation and thereby increasing a priority of the terminal device.
[Solution] A server as a relay device, in forming a new session, compares the priority of an existing session with the priority of the new session, and, if the priority of the new session is higher than the priority of the existing session, removes a competing terminal device participating in the existing session from the existing session and makes the competing terminal device participate in the new session. Further, upon reception of a specific calling voice signal specifying the terminal device participating in the existing session as a communication partner from the terminal device set to a particular mode, the relaying device removes the terminal device participating in the existing session from the existing session and makes the terminal device participate in a session to be formed by the specific calling voice signal regardless of the priority of the session.
[Problem] To provide a relaying device and a voice communication system with which calling and listening among a plurality of talk groups is possible.
[Solution] The relaying device is provided with: a relaying device which stores a plurality of groups and terminal devices belonging to each of the groups, and, when a voice signal is received from one or more of the terminal devices (calling terminal devices), transfers the voice signal to the terminal devices other than the calling terminal device in the group to which the calling terminal device belongs; and the plurality of terminal devices which are connected to the relay device over a communication network. The relaying device also stores the master-slave relationship among the plurality of groups, transfers the voice signal to the terminal devices belonging to a master group if the group to which the calling terminal device belongs is a slave group, and transfers the voice signal to the terminal devices belonging to slave groups if the group to which the calling terminal device belongs is the master group.
An angle calculator calculates, based on acceleration detected by an acceleration sensor, a tilt angle of a transceiver with respect to the vertical direction. A selector (i) selects a first audio filter to operate if the tilt angle is less than a threshold angle, or (ii) selects a second audio filter to operate if the tilt angle is equal to or greater than the threshold angle. The second audio filter has a lower cutoff frequency that is higher than the lower cutoff frequency of the first audio filter.
H04R 3/04 - Circuits pour transducteurs pour corriger la fréquence de réponse
G01P 15/08 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
72.
Multisite trunking system and site switching method
Upon reception of ACK via a communication IF, an allocator allocates a channel of a repeater to be controlled to communications between wireless terminals. A determination unit determines whether channels allocatable to the communications between the wireless terminals are short. When the determination unit has determined that the allocatable channels are short, a switching controller controls at least one repeater, among repeaters to be controlled by a repeater controller, that serves as a controlling repeater to cause the repeater to transmit, to a wireless terminal standing by in the channel of the repeater, a switching signal designating standby in a channel of a repeater that is controlled by another repeater controller.
[Problem] To provide an audio communication system wherein a relaying device is connected to terminal devices, which are communication devices, via a communication network and wherein the relaying device is caused to manage the group of the terminal devices.
[Solution] An audio communication system comprises: a master relaying device; one or more slave relaying devices connected to the master relaying device via a communication network; and one or more terminal devices connected to each relaying device via a communication network. Each slave relaying device transfers, to the master relaying device, audio signals received from the terminal device in charge of the slave relaying device. The master relaying device transfers the audio signals, which were received from each slave relaying device, to the slave relaying devices other than that slave relaying device.
H04W 4/06 - Répartition sélective de services de diffusion, p. ex. service de diffusion/multidiffusion multimédiaServices à des groupes d’utilisateursServices d’appel sélectif unidirectionnel
[Problem] To enable the response audio signal of one transceiver to be heard by other transceivers, in cases when a plurality of subordinate transceivers (wireless handset) are present.
[Solution] A relaying device is provided with: a wireless apparatus interface having a repeater connected thereto; a signal processing unit connected to the wireless apparatus interface; a network interface connected to a network; a packet processing unit connected to the network interface; and a mixing unit provided between the signal processing unit and the packet processing unit. The packet processing unit reads out an audio signal from a packet inputted from the network interface, and outputs the audio signal as a downlink audio signal. The mixing unit inputs the downlink audio signal into the signal processing unit, and inputs an uplink audio signal into the signal processing unit. The signal processing unit outputs, to the wireless apparatus interface, the downlink audio signal and the uplink audio signal.
[Problem] To provide a communication system for simplifying terminal device configuration.
[Solution] A communication system comprises a server and a terminal device. The server stores first information in order for the terminal device to communicate, and stores second information in order for the terminal device to connect to a network of the other bases. When the power is turned on in a normal operation, the terminal device connects to the network by using network information in a non-volatile memory unit, obtains the first information from the server, and writes the same in a volatile memory unit. Thus, the terminal device starts operation. When the power is turned on by using a particular operation, the terminal device connects to the network by using the network information in the non-volatile memory unit, obtains network information of the other bases from the server, and stores the same in the non-volatile memory unit. Thus, it is possible to connect to the network of the other bases.
A communication control device includes an association table updater and a correction packet transmitter. The association table updater updates, when receiving from a first wireless device a packet containing an identification number of a first communication terminal connected to the first wireless device, an association table storing an address of the first wireless device and the identification number of the first communication terminal. The correction packet transmitter transmits, when a packet received from a second wireless device to which a second communication terminal is connected contains an address of the second wireless device, an identification number of the second communication terminal, and an identification number indicating a destination of the packet, and when the identification number indicating the destination is the identification number of the first communication terminal stored in the association table, a correction packet containing the address of the second wireless device and the identification number of the second communication terminal to the first wireless device after the packet is transmitted to the first wireless device.
H04L 12/703 - Prévention ou récupération du défaut de routage, p.ex. reroutage, redondance de route "virtual router redundancy protocol" [VRRP] ou "hot standby router protocol" [HSRP]
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04M 11/00 - Systèmes de communication téléphonique spécialement adaptés pour être combinés avec d'autres systèmes électriques
H04W 4/48 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour les véhicules, p. ex. communication véhicule-piétons pour la communication dans le véhicule
An FFT processor applies the fast Fourier transform to each frame of an input signal and generates frequency domain data. A first spectrum calculator calculates the amplitude spectrum of the input signal for the individual frequency components based on the frequency domain data. A dispersion index calculator calculates a dispersion index indicating the level of dispersion of the amplitude spectrum of the input signal in the latest frames. A noise index calculator calculates a noise index indicating the level of noise contained in the input signal. A second spectrum calculator calculates the amplitude spectrum of the noise for the individual frequency components. A gain calculator calculates a spectral gain for suppressing the noise for the individual frequency components. An IFFT processor applies the inverse fast Fourier transform to the frequency domain data after multiplication by the spectral gain at a multiplier, and generates a signal to be output.
G10L 21/0264 - Filtration du bruit caractérisée par le type de mesure du paramètre, p. ex. techniques de corrélation, techniques de passage par zéro ou techniques prédictives
G10L 15/20 - Techniques de reconnaissance de la parole spécialement adaptées de par leur robustesse contre les perturbations environnantes, p. ex. en milieu bruyant ou reconnaissance de la parole émise dans une situation de stress
G10L 21/0232 - Traitement dans le domaine fréquentiel
81.
Data configuration system, data update system, and data configuration method
[Problem] To smoothly update configuration data comprising: fixed data set to a server by an administrator; and data rewritable by a user at a terminal.
[Solution] A terminal device having a storage unit that stores configuration data, and a first and a second provisioning server are connected over a network. The terminal device includes an operation unit for rewriting variable data, which is a part of the plurality of configuration data. The first provisioning server stores all the configuration data. The second provisioning server stores fixed data, which is the plurality of configuration data excluding the variable data. The terminal device accesses the first provisioning server in an initial state in order to obtain all the configuration data and store the same in the storage unit. The configured terminal device accesses the second provisioning server in order to obtain the fixed configuration data.
[Problem] To conduct a process of moving a designated communication terminal belonging to a first communication system so as to belong to a second communication system without errors.
[Solution] A management device is provided, which deletes information on a communication terminal of a first configuration device and then adds information of the communication terminal to the second configuration device. The management device is provided with an interface unit and a control unit. The interface unit obtains a first configuration file which stores a configuration data on a communication terminal belonging to a first communication system, and a second configuration file which stores a configuration data on a communication terminal belonging to a second communication system. The control unit deletes a configuration data of a designated communication terminal from the obtained first configuration file, and adds a configuration data of the designated communication terminal to the obtained second configuration file.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
H04M 3/42 - Systèmes fournissant des fonctions ou des services particuliers aux abonnés
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04W 60/04 - Rattachement à un réseau, p. ex. enregistrementSuppression du rattachement à un réseau, p. ex. annulation de l'enregistrement utilisant des événements déclenchés
H04W 8/06 - Enregistrement dans un registre de localisation de réseau-serveur, un VLR ou un serveur de mobilité des utilisateurs
83.
Data update system, remote configuration device and data update method
[Problem] A data update system of the present invention allows a user to update a data of a server while security of the server is maintained.
[Solution] The present invention is provided with a main server for storing a configuration data, a terminal device to which update data for updating a part of or whole of the configuration data is input, a remote configuration device for communicating with the terminal device for receiving and storing the update data input to the terminal device, and a communication server for communicating with the main server and the remote configuration device. The remote configuration device transmits the update data received from the terminal device to the communication server. The communication server updates the configuration data stored in the main server with the update data received from the remote configuration device.
G06F 8/658 - Mises à jour par incrémentMises à jour différentielles
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées
H04M 3/56 - Dispositions pour connecter plusieurs abonnés à un circuit commun, c.-à-d. pour permettre la transmission de conférences
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04W 4/00 - Services spécialement adaptés aux réseaux de télécommunications sans filLeurs installations
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
84.
RELAY DEVICE, VOICE COMMUNICATION SYSTEM, VOICE SIGNAL TRANSFER METHOD, AND PROGRAM
[Problem] To provide a relay device and a voice communication system with which calling and listening among a plurality of talk groups is possible. [Solution] The present invention is provided with: a relay device which stores a plurality of groups and terminal devices belonging to each of the groups, and, when a voice signal is received from one or more of the terminal devices (calling terminal devices), transfers the voice signal to the terminal devices other than the calling terminal device in the group to which the calling terminal device belongs; and the plurality of terminal devices which are connected to the relay device via a communication network. The relay device also stores the master-slave relationship among the plurality of groups, transfers the voice signal to the terminal devices belonging to a master group if the group to which the calling terminal device belongs is a slave group, and transfers the voice signal to the terminal devices belonging to slave groups if the group to which the calling terminal device belongs is the master group.
[Problem] To enable preferential communication using a terminal device by setting a specific mode in the terminal device by user operation and thereby increasing the priority of the terminal device. [Solution] A server as a relay device, when forming a new session, compares the priority of an existing session with the priority of the new session, and, if the priority of the new session is higher than the priority of the existing session, removes a competing terminal device participating in the existing session from the existing session and causes the competing terminal device to participate in the new session. Further, upon reception, from a terminal device set in a specific mode, of a specific calling voice signal designating the terminal device participating in the existing session as a communication counterpart, the server removes the terminal device participating in the existing session from the existing session regardless of the priorities of the sessions, and causes the terminal device to participate in a session to be formed by the specific calling voice signal.
[Problem] To achieve a voice communication system which communicates between two networks that use partially overlapping address spaces.
[Solution] According to the present invention, first and second networks are connected to one another by means of a gateway device provided with: a first protocol stack which manages transmission and reception addresses of communication packets in the first network; a second protocol stack which manages transmission and reception addresses of communication packets in the second network; and a call control unit which, upon reception of a communication packet from either network, determines the transfer destination network and transfer destination address of the packet on the basis of call destination information included in the packet.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p. ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
A data calculator repeatedly calculates electric power of a delayed transmission signal and a multiplication value of a complex conjugate of the delayed transmission signal and a feedback signal. A memory stores, for each delayed electric power address corresponding to the electric power, a first total value that is the total of electric power of the delayed transmission signal and a second total value that is the total of the multiplication value. A range adjuster adjusts the upper limit of a determination reference range according to the maximum reference address. When a determiner determines that the number of repeats of the data calculator is sufficient based on the determination reference range, a vector calculator calculates a distortion correction vector based on a distortion vector calculated from the ratio between the first total value and the second total value. An updater updates the distortion correction vector stored in a look-up table based on the distortion correction vector.
A signal input from a microphone is A-D converted by an A-D converter, is frequency differentiated by a pre-emphasis circuit, and is input to a shift control circuit. The shift control circuit includes a limiter circuit, a phase shifter, and a harmonic suppressor. The limiter circuit performs amplitude limitation so as to limit the amplitude of the input control target signal to be equal to or less than a first threshold. The phase shifter shifts, for the control target signal having the amplitude limited, a phase of a frequency component within the predetermined frequency range. The harmonic suppressor suppresses, for the control target signal phase-shifted by the phase shifter, a frequency component equal to or greater than a second threshold, and outputs an information signal that is the control target signal having the frequency component of equal to or greater than the second threshold suppressed. The modulator performs frequency modulation on a carrier wave in accordance with the information signal. The transmitter produces a transmission signal from the frequency-modulated carrier wave, and transmits the transmission signal via an antenna.
H03D 3/18 - Démodulation d'oscillations modulées en angle en détectant la différence de phase entre deux signaux obtenus à partir du signal d'entrée au moyen de dispositions à ouverture synchrones
H03C 3/09 - Modifications du modulateur en vue de réguler la fréquence moyenne
H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
H03C 3/06 - Moyens pour faire varier la déviation de fréquence
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
A shift control circuit includes a first limiter circuit, a phase shifter, a first suppressor, and a reducer. The first limiter circuit limits the amplitude of a control target signal input from a microphone, having undergone A-D conversion by an A-D convener, and frequency differentiation by a pre-emphasis circuit, and having the relative intensity of harmonic components increased. The phase shifter performs, for the control target signal having undergone the amplitude limitation, phase shift on the frequency component within a first frequency range. The first suppressor suppresses, for the control target signal having undergone the phase shift, the frequency component equal to or greater than a second threshold. The reducer suppresses, for the control target signal having the suppressed frequency component, the frequency component within a second frequency range, and outputs as an information signal. A modulator performs frequency modulation on a carrier wave in accordance with the information signal, and a transmitter produces a transmission signal from the carrier wave having undergone the frequency modulation, and transmits the transmission signal via an antenna.
H04N 9/66 - Circuits pour le traitement de signaux de couleur pour démodulateurs synchrones
H03C 3/06 - Moyens pour faire varier la déviation de fréquence
H03C 3/09 - Modifications du modulateur en vue de réguler la fréquence moyenne
H03D 3/18 - Démodulation d'oscillations modulées en angle en détectant la différence de phase entre deux signaux obtenus à partir du signal d'entrée au moyen de dispositions à ouverture synchrones
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
H04L 27/16 - Dispositifs de régulation de fréquence
H04L 27/22 - Circuits de démodulationCircuits récepteurs
H03G 11/00 - Limitation d'amplitudeLimitation du taux de variation d'amplitude
H03K 5/131 - Dispositions ayant une sortie unique et transformant les signaux d'entrée en impulsions délivrées à des intervalles de temps désirés contrôlées numériquement
When receiving ACK via a communication interface (51), an allocation unit (52) allocates channels of repeaters to be controlled to communications between a plurality of wireless terminals. A determination unit (53) determines whether channels allocable to the communications between the plurality of wireless terminals are in short supply or not. If the determination unit (53) determines that the allocable channels are in short supply, a switching control unit (54) controls at least one repeater that is a repeater for control among the repeaters to be controlled by a repeater controller (5a, 5b), and causes the repeater to transmit, to a wireless terminal that is in a standby state on the channel of the repeater, a switching signal instructing standby on the channel of a repeater controlled by another repeater controller (5a, 5b).
A radio apparatus includes a Man-Overboard detection unit, a control unit and a distress key. The Man-Overboard detection unit outputs a Man-Overboard signal when the radio apparatus has fallen to a water surface or into water. The control unit generates a distress signal including a distress type. A distress key outputs a distress key manipulation signal to the control unit when the distress key is manipulated. When the control unit receives the Man-Overboard signal from the Man-Overboard detection unit, the control unit automatically sets a distress type of the distress signal to Man-Overboard.
G08B 1/08 - Systèmes de signalisation caractérisés seulement par la forme de transmission du signal utilisant une transmission électrique
G08B 21/08 - Alarmes pour assurer la sécurité des personnes réagissant à la présence de personnes dans une masse d'eau, p. ex. dans une piscineAlarmes pour assurer la sécurité des personnes réagissant à un état anormal d'une masse d'eau
G08B 21/04 - Alarmes pour assurer la sécurité des personnes réagissant à la non-activité, p. ex. de personnes âgées
G08B 29/18 - Prévention ou correction d'erreurs de fonctionnement
G08B 5/38 - Systèmes de signalisation optique, p. ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges utilisant une transmission électriqueSystèmes de signalisation optique, p. ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges utilisant une transmission électromécanique utilisant des sources de lumière visible utilisant une lumière clignotante
98.
Relaying device, voice communication system and voice communication method
[Problem] To enable group communication with a high degree of freedom in a voice communication system in which a relay device and a terminal device are connected over a communication network.
[Solution] A voice communication system comprises a terminal device and a relay device which transmit and receive a voice signal with each other over a network. The relay device has a group table. The terminal device transmits, to the relay device, specifying information specifying a group to which the terminal device belongs. When receiving the specifying information from the terminal device, the relay device registers the terminal device in the group table, so as to belong to the designated group. The terminal device transmits, to the relay device, a voice signal destined to the group to which the terminal device belongs. When receiving, from the terminal device, the voice signal destined to the belonging group, the relay device transfers the voice signal to another terminal device belonging to the specified group.
H04W 76/45 - Gestion de la connexion pour la distribution ou la diffusion sélective pour des services presser-pour-transmettre [PPT] ou presser-pour-transmettre sur cellulaire [PoC]
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 84/12 - Réseaux locaux sans fil [WLAN Wireless Local Area Network]
99.
Terminal device, terminal configuration system, and terminal configuration method
[Problem] To provide a communication system for simplifying terminal device configuration.
[Solution] A communication system comprises a server and a terminal device. The server stores first information in order for the terminal device to communicate, and stores second information in order for the terminal device to connect to a network of the other bases. When the power is turned on in a normal operation, the terminal device connects to the network by using network information in a non-volatile memory unit, obtains the first information from the server, and writes the same in a volatile memory unit. Thus, the terminal device starts operation. When the power is turned on by using a particular operation, the terminal device connects to the network by using the network information in the non-volatile memory unit, obtains network information of the other bases from the server, and stores the same in the non-volatile memory unit. Thus, it is possible to connect to the network of the other bases.
A radio apparatus includes a control unit, a power unit, a distress key and a transmission unit. When the distress key is manipulated, a distress key manipulation signal is output to the control unit and the power unit. When the power unit receives the distress key manipulation signal during a power supply is stopped, the power unit supplies power to the control unit and the transmission unit. When the control unit receives power from the power unit, the control unit starts setting up the radio apparatus and counts a time that the control unit continuously receives the distress key manipulation signal. When the control unit continuously receives the distress key manipulation signal for a preset time or longer, the control unit outputs a power supply maintenance signal to the power unit, generates the distress signal, and causes the transmission unit to send the distress signal.
G08B 3/10 - Systèmes de signalisation audibleSystèmes d'appel sonore de personnes utilisant une transmission électriqueSystèmes de signalisation audibleSystèmes d'appel sonore de personnes utilisant une transmission électromagnétique
G08B 25/01 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p. ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
B60K 35/00 - Instruments spécialement adaptés aux véhiculesAgencement d’instruments dans ou sur des véhicules
B60R 25/04 - Équipements ou systèmes pour empêcher ou signaler l’usage non autorisé ou le vol de véhicules agissant sur des systèmes ou des équipements de véhicules, p. ex. sur les portes, les sièges ou les pare-brises agissant sur le système de propulsion, p. ex. le moteur ou le moteur d’entraînement
