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Document |
Document Title |
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6985782 |
Audio control signal transmission apparatus and reception appartus, control system and control method using an audio control signal, program information transmission apparatus and transmission method, and program reservation apparatus and program reservation method
An audio control signal transmission apparatus and reception apparatus, an audio control signal based control system and control method, a program information transmission apparatus and...
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6519008 |
Filter circuit
For an optimal adjustment of the filter frequency of a signal filter, independently of external influences, process spreads and temperature fluctuations, a filter circuit for filtering at least one...
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6404925 |
Methods and apparatuses for segmenting an audio-visual recording using image similarity searching and audio speaker recognition
Methods for segmenting audio-video recording of meetings containing slide presentations by one or more speakers are described. These segments serve as indexes into the recorded meeting. If an...
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6246439 |
Transparent embedment of data in a video signal
A method and apparatus for transparently embedding data into a video signal modulates a particular carrier frequency with a randomized pattern representing the data. The randomized pattern may be a...
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6240189 |
Generating a common bass signal
A system for extracting a bass signal from left and right audio input signals of a stereo signal including a differencing circuit generating a difference mode signal from the left and right audio...
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6037992 |
Audio transmission in the video stream with adaptive gain
An improved system for transmitting audio signals in a TV strewn employs an adaptive gain system. The system provides for sampling the audio signal in each of successive intervals in between 256 (2...
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5953066 |
Bilingual television signal processor
In a bilingual television signal processor which is capable of automatically controlling a bandpass filter for detecting a pilot signal included in a bilingual signal received in a television...
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5929921 |
Video and audio signal multiplex sending apparatus, receiving apparatus and transmitting apparatus
The present invention provides a video and audio signal multiplex transmitting apparatus having a video and audio signal multiplex sending apparatus for grouping audio data to packets of a fixed...
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5737034 |
Radio frequency modulator having an audio multiplex broadcasting function
A radio frequency (RF) modulation apparatus for modulating input video and audio signals into a television broadcast signal is provided. The apparatus includes a buffer amplifier, a decoder, a...
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5523795 |
Method and apparatus for serial transmission and/or reception of nonsynchronous, multiplexed signals
A method and an apparatus capable of transmitting and receiving multiplexed signals as serial data in such a manner that, even in a state where a continuous signal such as an audio digital signal...
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5483298 |
Circuit arrangement for demmodulating the sound signals in a television signal in accordance with at least two different transmission standards
A circuit arrangement for demodulating the sound signals in a television signal is described, which circuit arrangement ensures a simple and low-cost structure, also for operation at different...
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5153723 |
HDTV audio subsystem with timing characteristics compatible with video subsystem
An audio subsystem for use in an HDTV broadcast system includes a sampler for sampling an analog audio signal at a sampling rate of 3H, where H is the NTSC horizontal scanning frequency. The...
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5072297 |
Method and system for transmitting and receiving PCM audio signals in combination with a video signal
A method and system for multiplexing additional audio information in the form of pulse code modulation (PCM) audio signals onto a television signal. The PCM audio signal is time multiplexed into...
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5063447 |
Information processing apparatus having a common A/D converter for the image and audio signals
An information processing apparatus having a common A/D converter for the image and audio signals includes image pickup circuitry for converting an image into an image signal. Preferably, the image...
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4945403 |
Color television format using pulse frequency and pulse width modulation
A luminance signal in a component video signal is pulse frequency modulated, and the pulse frequency modulated signal is sequentially pulse width modulated by two color difference signals...
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4805014 |
Signal transmission system for a CATV system
A CATV (cable television) signal transmitting system for use with a broadcast satellite system includes a receiving stage for receiving a broadcast satellite station signal consisting of base-band...
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4745476 |
Television sound signal processing apparatus
A television sound signal processing apparatus receives a digitized delta-encoded sound signal superposed in a horizontal blanking period and a digital signal showing the standard value of the...
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4665431 |
Apparatus and method for receiving audio signals transmitted as part of a television video signal
The apparatus and method for receiving one or more audio frequency signals transmitted on a television video signal includes a decoder comprised of a pulse separator to recover modulated pulses...
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4652903 |
Frequency generation for multiplexed analog component color television encoding and decoding
In a Multiplexed Analog Component (MAC) color television transmission system in which the MAC signal is to be converted at the receiver to a composite color television signal having a 227.5 f H ...
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4514760 |
Digital television receiver with time-multiplexed analog-to-digital converter
In a television (TV) receiver having digital signal processing in which the video and sound signals are separated in the analog processing circuitry, one analog-to-digital converter (ADC) serves...
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4479150 |
Methods and arrangements for changing the audio information in an audio/video recording/reproduction system
The invention relates to methods and circuit arrangements for changing the audio information in an audio/video recording/reproduction system and particularly in a color video system wherein the...
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4333108 |
Apparatus and method for transmitting a pulse width modulated audio signal on a video signal
A system for transmitting an audio signal in pulse width modulated form on a video signal is disclosed. The audio signal is modulated by varying the time occurance of at least one edge of a pulse...
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4253115 |
Process for the transmission of an audiofrequency analog signal during line-frame synchronization intervals of a television signal and apparatus for performing this process
The transmission process comprises a coding of the sound signal consisting of converting it into words of n bits at a frequency double the line frequency and during each synchronization pulse...
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4246615 |
System for recording and/or reproducing an audio signal which has been converted into a digital signal
A composite video signal recording and reproducing system also records and reproduces an audio signal after their conversion into a digital signal. The recording system converts an input analog...
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4156253 |
Sound-in-video television transmission
A sound-in-video signal transmission system is made compatible with present domestic TV receivers by transmitting the color-sync signal in the time domain according to the current standard, and the...
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4134127 |
Color television signal including auxiliary information
A color television system, such as the NTSC system, in which at least a part of the chromatic information is transmitted as suppressed carrier amplitude modulation of a subcarrier, and a subcarrier...
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4005265 |
Videophone system synchronizer
In a videophone system sound, video, synchronizing and signalling signals are to be transmitted through a single pair of telephone cables of existing telephone communications. In that case sound,...
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3916436 |
Method and arrangement for the transmission of signals in a color television system
A color television camera is comprised of a unit for generating picture signals, a unit for generating a plurality of control signals respectively indicative of different camera operating...
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3506780 |
SIGNAL TRANSDUCER SYSTEMS
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3446914 |
AUDIO AND VIDEO RECORDING WITH PHASE MODULATED AUDIO PULSE ON HORIZONTAL BACK PORCH
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3423520 |
TIME DIVISION MULTIPLEXING OF AUDIO AND VIDEO SIGNALS
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3391247 |
Television signal recording with sampled audio recorded during horizontal intervals
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3371156 |
Television recording system having audio signals recorded during horizontal blanking intervals
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3371154 |
Audio-video disk recording system with crosstalk prevention
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3335218 |
Television recording and reproducing apparatus with substitute horizontal sync and multiplexed audio
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3042747 |
Electronic transmitting system
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