An imaging element includes: a photodiode, a first FD, a second FD, a TRG transistor, an amplification transistor, a DGC transistor for switching a conversion gain, when converting charges into a pixel signal, to a high gain or a low gain, a capacitor, an OFG transistor for transferring charges overflowing from the photodiode to the second FD, and an RST transistor. During an imaging action involving a long exposure time, after reset is carried out, with the conversion gain being switched to the high gain, the pixel signal is read and employed as a high-gain reset signal. Then, after the TRG transistor is conducted, the pixel signal is read and employed as a high-gain signal. A first signal which is a difference between the high-gain signal and the high-gain reset signal is outputted.
H04N 25/65 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to reset noise, e.g. KTC noise related to CMOS structures by techniques other than CDS
H04N 23/745 - Detection of flicker frequency or suppression of flicker wherein the flicker is caused by illumination, e.g. due to fluorescent tube illumination or pulsed LED illumination
Disclosure herein includes descriptions of a method for transmission of digital audio over analog video data with a single cable. The method comprising receiving, by a video transmitter, a digital video signal and one of a digital or an analog audio signal. Sampling, by an audio analog-to-digital converter (ADC), the audio signal if it is an analog audio signal. Storing, in a First-in-First-Out (FIFO) buffer, digital audio data corresponding to the sampled analog audio signal; reading, by an arbiter, the digitized audio samples, in response detecting an availability of data in the FIFO buffer and formatting the serialized audio bits with a digital start code; inserting the serialized audio bits and the digital start code into a blanking period of the digital video signal, thereby generating a combined digital audio and video signal and converting, by a digital-to-analog converter (DAC), the combined digital audio and video signal to analog, thereby generating a combined analog audio and video stream including audio data in a native form; and transmitting the combined analog audio and video stream to a receiver in one direction. In another embodiment, an analog signal is transmitted in the opposite direction.
H04N 7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
H04N 5/073 - Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
The present invention comprises a photodiode 23, a first FD 21, a second FD 22, a TRG transistor 24, an amplification transistor 25, a DGC transistor 28 for switching a conversion gain used when converting charges to pixel signals to a high or a low gain, a capacitor 29, an OFG transistor 30 for transferring charges that overflow from the photodiode 23 to the second FD 22, and an RST transistor 27. In an imaging operation having a long exposure time, a pixel signal is read and employed as a high-gain reset signal after a reset is carried out in a state of having been switched to the high gain, the pixel signal is then read and employed as a high-gain signal after the TRG transistor 24 is electrically connected, and a first signal that is the difference between the high-gain signal and the high-gain reset signal is outputted.
Disclosure herein includes descriptions of a method for transmission of digital audio over analog video data with a single cable. The method comprising receiving, by a video transmitter, a digital video signal and one of a digital or an analog audio signal. Sampling, by an audio analog-to-digital converter (ADC), the audio signal if it is an analog audio signal. Storing, in a First-in-First-Out (FIFO) buffer, digital audio data corresponding to the sampled analog audio signal; reading, by an arbiter, the digitized audio samples, in response detecting an availability of data in the FIFO buffer and formatting the serialized audio bits with a digital start code; inserting the serialized audio bits and the digital start code into a blanking period of the digital video signal, thereby generating a combined digital audio and video signal and converting, by a digital-to-analog converter (DAC), the combined digital audio and video signal to analog, thereby generating a combined analog audio and video stream including audio data in a native form; and transmitting the combined analog audio and video stream to a receiver in one direction. In another embodiment, an analog signal is transmitted in the opposite direction.
H04N 7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
5.
Method and apparatus for transmitting and receiving audio over analog video transmission over a single coaxial cable
Disclosure herein includes descriptions of a method for transmission of digital audio over analog video data with a single cable. The method comprising receiving, by a video transmitter, a digital video signal and one of a digital or an analog audio signal. Sampling, by an audio analog-to-digital converter (ADC), the audio signal if it is an analog audio signal. Storing, in a First-in-First-Out (FIFO) buffer, digital audio data corresponding to the sampled analog audio signal; reading, by an arbiter, the digitized audio samples, in response detecting an availability of data in the FIFO buffer and formatting the serialized audio bits with a digital start code; inserting the serialized audio bits and the digital start code into a blanking period of the digital video signal, thereby generating a combined digital audio and video signal and converting, by a digital-to-analog converter (DAC), the combined digital audio and video signal to analog, thereby generating a combined analog audio and video stream including audio data in a native form; and transmitting the combined analog audio and video stream to a receiver in one direction. In another embodiment, an analog signal is transmitted in the opposite direction.
H04N 7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
H04N 5/073 - Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
A method and system for transmitting and receiving an audio signal over a video signal in a single cable. The method and system including receiving an analog video signal, the analog video signal comprising one or more rows of video data, an audio header, and one or more quantized audio data. The method includes detecting, the audio header in a blank interval of the analog video and determining a reference level of the audio header. The method and system include extracting, in response to detecting the audio header, the one or more quantized audio data and converting the one or more quantized audio data to an original value of audio data based on the reference level of the audio header. The method and system are configured for storing the one or more quantized audio data in the original value in a First-in-First-Out (FIFO) buffer, and reconstructing, utilizing the FIFO buffer, a continuous audio signal from the one or more quantized audio data in the original value.
H04N 7/04 - Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
H04N 7/06 - Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
H04N 7/083 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band with signal insertion during the vertical and the horizontal blanking interval
The present invention is provided with: a comparison unit 31 which compares a first reference signal and a second reference signal with a pixel signal including a reset component and a signal component; an up counter 34 which up-counts a counter clock; and a black level correction unit 35 which corrects a black level of a count value of the up counter 34, wherein the up counter 34 starts an up-count when the comparison unit 31 compares the first reference signal with the reset component to invert an output, and stops the up-count when the comparison unit 31 compares the second reference signal with the signal component to invert the output. An image-captured data, in which the black level is corrected and the reset component is removed from the signal component, is output by subtracting, from a count value counted by the up counter 34, a value counted by the up counter 34 for a pixel signal from a shielded pixel.
A method and an apparatus for improving digital video signal transmission over a long transmission line are disclosed. A simple equalization reference signal is generated and then combined with a digital video signal in the digital domain such that the transmission of the reference signal takes place at a predefined time period during the vertical blanking interval of the video signal. The combined signal is then converted into an analog video transport signal, which analog signal is then transmitted over the long transmission line to a downstream video receiver. The equalization reference signal is extracted and used at the video receiver to restore the analog video signal which in turn is converted back to digital video signal.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic integrated circuits; integrated circuit modules; integrated circuits; integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video; electronic interconnectors for audio and video signals; transmitters and receivers for audio and video signals for transmission over twisted pair cables; cables for electrical or optical signal transmission; building security systems comprising software and hardware for providing video, alarm status, building plans, and other information to a remote station; closed loop circuit boards; TV monitors; interfaces for computers; digital image storing apparatus; electronic theft prevention apparatus; sound recording apparatus; sound reproduction apparatus; video recorders; video disk players; recorded message senders; television receivers (TV sets); video telephones; video cameras; printed circuit boards; electronic circuit board; circuit boards provided with integrated circuits; circuit boards; memory board; interface cards for data processing equipment in the form of printed circuits; processors (central processing units); operating system programs.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic integrated circuits; integrated circuit module; integrated circuits; integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic integrated circuits; Integrated circuit module; Integrated circuits; Integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic integrated circuits; Integrated circuit module; Integrated circuits; Integrated circuits, integrated circuit chips, and integrated circuit modules for encoding and decoding digital video
