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5990967 |
Transmission apparatus and receiving apparatus
The transmitting device latches the time of the absolute clock when the V-sync signal of the video signal block is transmitted, adds to the latched time a predetermined delay time equivalent to the...
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5982447 |
System and method for combining two data streams while maintaining the continuous phase throughout the combined data stream
A system and method for a generating a data stream for encoding by combining data from a multiple of sources. In order to maintain a continuous phase in the combined data stream, any phase...
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5959684 |
Method and apparatus for audio-video synchronizing
A method and apparatus for synchronizing the playback of audio and video frames from a program source. The method associates an audio presentation time stamp ("PTS") value with an output audio...
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5917482 |
Data synchronizing system for multiple memory array processing field organized data
A data system includes a memory array operative together with a memory controller and a processor. The processor includes a control input which receives user commands. A plurality of data channels...
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5912701 |
Arrangement for measuring and controlling temporal relationships between channels of a multimedia communication system
A method for ascertaining the temporal relationship between two signals that traverse a network via two different channels concurrently sends a test signal through the two channels and evaluates...
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5907351 |
Method and apparatus for cross-modal predictive coding for talking head sequences
A method and apparatus for transmitting and remotely displaying the audio and visual portion of a person speaking so that the audio and visual signals are synchronized. The audio signal is...
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5889563 |
Method and device for sychronizing visual information with audio information
A method and device for synchronizing visual information encoded in accordance with the MPEG standard, when it is being decoded. A counter of the number of words transmitted to the picture decoder...
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5880788 |
Automated synchronization of video image sequences to new soundtracks
The synchronization of an existing video to a new soundtrack is carried out through the phonetic analysis of the original soundtrack and the new soundtrack. Individual speech sounds, such as...
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5877815 |
Frame synchronizer apparatus for synchronizing video and audio data to a reference signal
A click noise is prevented from being generated in audio signals when reading of memory jumps. Separated audio data is supplied to a sampling rate converter and converted into an audio signal of a...
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5874997 |
Measuring and regulating synchronization of merged video and audio data
This invention concerns real-time assembly of a compressed audio-visual system data stream (22) so the audio and video data may be subsequently presented in synchronism. Assembly of a system data...
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5818547 |
Timing detection device and method
A timing detection device employed in a video decoder comprising a counter for counting the number of frames of coded picture data stored in a frame memory area of a RAM; a register where the count...
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5815634 |
Stream synchronization method and apparatus for MPEG playback system
A multimedia system including an audio/video decoder/decompresser for decoding/decompressing a compressed encoded audio/video data stream to generate video images for display and audio signals for...
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5812201 |
Data synchronizing apparatus and method thereof
A data synchronizing apparatus and method thereof capable of readily synchronizing video data and audio data by using a read pointer and a write pointer in each memory device storing the video and...
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5808722 |
Apparatus for extending and reproducing video and audio data and a video and audio synchronization controller
A motion-pictures and audio synchronization controller for extending and reproducing compressed motion-pictures and audio multiplexed data and outputting motion-pictures synchronously with audio...
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5764965 |
Synchronization infrastructure for use in a computer system
A synchronization backbone for use in a computer system having a system board containing at least one central processing unit for processing digital data, a memory coupled to the system board for...
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5758092 |
Interleaved bitrate control for heterogeneous data streams
A heterogeneous multimedia stream has interleaved samples of two or more different substream types. For example, a heterogeneous video stream may have interleaved intra, predicted, and...
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5731852 |
Image/audio information recording and reproducing apparatus using a semiconductor memory
An image/audio information recording and reproducing apparatus using a semiconductor memory. The image/audio information recording and reproducing apparatus includes a semiconductor memory, a...
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5661728 |
Decoder for audio signals of compressed and coded audiovisual streams
A decoder for audio signals belonging to audio-visual streams coded in accordance with standard ISO/IEC 11172 is provided. The decoder has a presentation unit (UP) which is controlled by a first...
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5661727 |
Schemes to determine presence of hidden terminals in wireless networks environment and to switch between them
A method of delievering data in a wireless communications network using a combination of collision sensing and collision avoiidance protocols. More precisely, if there are no hidden nodes detected...
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5642171 |
Method and apparatus for synchronizing audio and video data streams in a multimedia system
A method and apparatus for synchronizing audio and video data streams in a computer system during a multimedia presentation to produce a correctly synchronized presentation. The preferred...
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5629740 |
Video transmitter for effecting after-recording
In a video transmitter including a first data processing system wherein compressed and encoded video-audio data are read out of a first store under control of a CPU, and then decoded to be...
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5603016 |
Method for synchronizing playback of an audio track to a video track
A method for synchronizing the audio track to the video track in a multimedia presentation. Any difference in the frequencies of the clocks of the audio and video drivers are first determined. If...
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5598352 |
Method and apparatus for audio and video synchronizing in MPEG playback systems
A multimedia system including an audio/video decoder/decompresser for decoding/decompressing a compressed encoded audio/video data stream to generate video images for display and audio signals for...
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5596420 |
Auto latency correction method and apparatus for MPEG playback system
A multimedia system including an audio/video decoder/decompresser for decoding/decompressing a compressed encoded audio/video data stream to generate video images for display and audio signals for...
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5572261 |
Automatic audio to video timing measurement device and method
The apparatus and method described herein provides for detecting or measuring the relative timing of the audio and video portions of an audio visual program by inspection of the opening and closing...
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5570372 |
Multimedia communications with system-dependent adaptive delays
A method and system in which lip synchronization is restricted to a single system in a multiple system communication of video data and audio data. In the preferred embodiment, the receiving system...
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5528308 |
Direct synthesis of a digital audio sample clock
Direct synthesis of a digital audio sample clock from a digital video sample clock is achieved by using a numerically controlled oscillator driven by the digital video sample clock. A phase...
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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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5519444 |
Phase synchronizing loop apparatus for digital audio signals
In a phase synchronizing loop apparatus for digital audio signals, a clock operation is controlled in accordance with a plurality of audio data formats, allowing a data transmission clock to be...
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5506627 |
Phase locked loop chain for locking audio sampling to serial digital component vide timing
A phase locked loop (PLL) chain for locking audio sampling to serial digital component video timing has a deserializer that recovers a video sample clock signal from a serial digital video signal,...
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5479351 |
Time-keeping system and method for synchronizing independent recordings of a live performance in post-recording editing
A GPS receiver comprises a data output port for communicating time code information formatted according to standards published by the Society of Motion Picture and Television Engineer (SMPTE). Such...
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5467139 |
Muting apparatus for a compressed audio/video signal receiver
A compressed audio/video, A/V, receiver provides A/V component timing reference signals (PTS's) coincident with reproduction of associated decompressed component signals. Synchronization apparatus...
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5463425 |
Synchronizing apparatus for synchronizing audio signal with video signal
A synchronizing apparatus includes an audio signal processing counter which is preset such that 735 or 736 samples of audio data exist in the vertical synchronizing signal of the video signal, such...
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5430485 |
Audio/video synchronization in a digital transmission system
A receiver (FIG. 2 ) for decoding associated compressed video and audio information components transmitted in mutually exclusive "frames" of data with respective time stamps PTS vid and PTS aud ...
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5387943 |
Semiautomatic lip sync recovery system
A semiautomatic lip sync recovery system for time synchronizing the audio and video channels of a television signal uses programmable delay circuits in each channel. An area of the image...
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5351092 |
Synchronization of digital audio with digital video
A method for synchronization of a digital audio signal sampled at a standard audio frequency with the corresponding digital video signal sampled at a standard video frequency associates an integer...
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5351090 |
Video and audio signal multiplexing apparatus and separating apparatus
When transmitting an audio signal by multiplexing in a synchronous period of a video signal, a buffer memory for time axis adjustment of the audio signal is controlled. The number of audio signal...
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5202761 |
Audio synchronization apparatus
An audio synchronizer apparatus having a delay detector for accurately measuring the delay of a video apparatus, coupled with a controllable, variable delay audio delay circuit for accurately...
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4963967 |
Timing audio and video signals with coincidental markers
A method for timing audio and video component signals of a television signal with coincidental markers generates a field pulse every Nth field of the televison signal at the transmitter. The...
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4724491 |
Inserting television advertising spots automatically
A downlink dish receives television signals from a remote location transmitted by satellite. Satellite receivers demodulate these received signals and normally transmit them through a switch to...
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4692803 |
CATV converter having phase locked loop for sound carrier wave frequency control
A CATV converter has a phase locked loop (PLL) circuit for controlling the sound carrier wave frequency of the audio signal component of the resulting TV signal. The PLL circuit receives as inputs...
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4641253 |
Process for synchronizing computer video with independent audio
A process for use of a low-cost personal computer to display video images which provide the effect of animation in synchronization with an audio program, such as voice or environmental sounds,...
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4080626 |
Discontinuous motion special effects generator for television
A discontinuous motion special effects generator for television is described including a memory means responsive to a television video signal for storing signals representing a television picture...
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2820091 |
Color television, frequency control system
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