Abrégé

The present invention relates to a public address device using CAN communication, and to a public address device using CAN communication, the device recovering CAN communication by checking whether there is an error in a CAN bus line. To this end, disclosed is a public address device using CAN communication, comprising: a main controller for transmitting, according to a communication protocol, a sound source signal, a voice signal, a public address signal, which is a media signal, and a control signal; and a sub controller receiving the public address signal and the control signal from the main controller so as to perform control such that the public address signal is outputted, wherein the main controller and the sub controller comprise CAN communication units so as to mutually transmit and receive data by CAN communication.

Classes IPC  ?

• H04H 20/61 - Dispositions spécialement adaptées à des applications spécifiques, p. ex. aux informations sur le trafic ou aux récepteurs mobiles à la radiodiffusion locale, p. ex. la radiodiffusion en interne
• H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
• H04H 20/47 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique
• H04H 60/06 - Dispositions de programmation de services de radiodiffusion ou de services relatifs à la radiodiffusion

Abrégé

The present invention relates to an integrated broadcasting system. More particularly, the present invention relates to an integrated broadcasting system using CAN communication which is capable of reducing the load and error probability of a CAN bus and real-time monitoring by detecting the occurrence of transmission and reception on the bus by a plurality of nodes. To this end, the present invention provides an integrated broadcasting system using CAN communication comprising: a compression/decompression unit; a plurality of broadcasting devices including a communication unit; and a check device including a display module.

Classes IPC  ?

• H04H 20/61 - Dispositions spécialement adaptées à des applications spécifiques, p. ex. aux informations sur le trafic ou aux récepteurs mobiles à la radiodiffusion locale, p. ex. la radiodiffusion en interne
• H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
• H04H 60/06 - Dispositions de programmation de services de radiodiffusion ou de services relatifs à la radiodiffusion
• H04H 60/04 - Équipement de studioInterconnexion des studios

Abrégé

A multi-channel broadcasting system using a digital matrix amplifier performing the setting of respective equipment is provided to control the model equipment through a digital master controller. An 8-channel audio input unit 66 is electrically connected to a digital audio mixer. Sound source equipment connection terminals are electrically connected to the sound equipment. A data converter unit 46 converts each data and a contact point signal. An audio matrix IC 60 outputs an input sound source signal to an arbitrary channel. A pair of audio output terminals transmits the output signal of the audio matrix IC.

Classes IPC  ?

• H04R 27/00 - Systèmes d'annonce en public

Abrégé

The present invention relates to a multi-channel broadcasting system using a digital matrix amplifier and to a method for controlling the same. More particularly, the present invention relates to a multi-channel broadcasting system using a digital matrix amplifier and to a method for controlling the same, in which a system PC is connected to a digital master controller through a network to control and check the operating status of each module equipment via the digital master controller, thus to perform monitoring and volume control in one place through a digital audio mixer and the digital matrix amplifier for broadcasting devices installed independently from each other, and set a volume value by a one-touch button. When a full digital amplifier adopting a matrix IC is applied to a broadcasting system of a school, the broadcasting system can be easily changed using a program of the system PC without the need to re-adjust the wiring of a speaker even under the conditions of frequent performance of level-based teaching, frequent change of classroom, and change of grade and class for every semester. The program of the system PC may be used in checking the operating status of each equipment of the multi-channel broadcasting system, controlling each audio player (audio source equipment), setting equipment, and easily controlling a matrix, a speaker relay and a volume. To this end, a multi-channel broadcasting system using a digital matrix amplifier according to the present invention comprises: audio source equipment for generating an audio source signal; a digital audio mixer including a 16-channel audio source input terminal for taking, as an input, the audio signal from the audio source equipment, an electronic volume IC for checking the volume value of the audio source input from the audio source input terminal and adjusting a volume and a tone, an audio matrix IC for outputting the audio source signal transmitted from the electronic volume IC to a certain channel among first to eighth channels in accordance with a set value, and a main control IC for controlling operations of the electronic volume IC and the audio matrix IC in accordance with a set value, analyzing operating statuses thereof and displaying the result of the analysis on an LCD display window; a digital master controller including an 8-channel audio input unit electrically connected to the digital audio mixer, an audio source equipment connection terminal electrically connected to the audio source equipment to control the audio source equipment, an Ethernet connection terminal for enabling setting and operation of the whole system through a network, a data converter unit for converting different data and contact signals based on equipment control IC standards, an audio matrix IC for outputting the audio source signal input through the audio input unit to a certain channel among first to eighth channels in accordance with a set value, and a pair of audio output terminals each of which has four channels for transmitting signals output from the audio matrix IC; a digital matrix amplifier including an 8-channel audio input unit for taking, as an input, the audio source signal output from the digital master controller, an audio matrix IC for outputting the audio source signal input through the audio input unit to a certain combination of channels among first to sixteenth channels in accordance with a set value, a 16-channel digital amplifying unit for amplifying the audio source signal output to the audio matrix IC, a main control IC for controlling operations of the audio matrix IC and the digital amplifying unit in accordance with a set value, analyzing operating statuses thereof and displaying the result of the analysis on an LCD display window, wherein the digital matrix amplifier has a power amplifier embedded therein to take, as an input, the audio source signal output from the digital master controller to perform power amplification; and a system PC connected to the digital master controller through a wired/wireless network to monitor the operating status of the whole system including the digital audio mixer and the digital matrix amplifier and control a volume through a window program.

Classes IPC  ?

• H04H 20/61 - Dispositions spécialement adaptées à des applications spécifiques, p. ex. aux informations sur le trafic ou aux récepteurs mobiles à la radiodiffusion locale, p. ex. la radiodiffusion en interne
• H04S 7/00 - Dispositions pour l'indicationDispositions pour la commande, p. ex. pour la commande de l'équilibrage