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7565061 |
Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium
A method of reproducing data from a recording medium, wherein each of the data includes reference time information indicating a reference time and packet information, includes the steps of...
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7502546 |
Method and apparatus for digitally recording and synchronously retrieving a plurality of video signals
A method and apparatus for connecting a plurality of digital video recorders to a plurality of video transmitters via first transmission lines and for connecting the plurality of digital video...
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7499104 |
Method and apparatus for determining relative timing of image and associated information
Measurement of the relative timing between images and associated information, for example video and audio. Image mutual event characteristics are recognized in the images and associated mutual...
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7480008 |
Video apparatus and method for controlling the same
Disclosed herein are a video apparatus and a method for controlling the same, wherein a video signal and an audio signal are synchronized. The method comprises receiving a video signal and an audio...
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7440035 |
Cable extending device
Attenuation compensation volume computing means ( 60, 61, 62, 63, 67, 68, 69, 70 ) of a signal receiver computes attenuation compensation volume of a video signal (G L , G H ) on the basis of...
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7423693 |
Video delay stabilization system and method
A video delay stabilization system configured for multiple types of video input signals, includes a plurality of video processing modules, and a variable delay module. The plurality of video...
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7348992 |
Apparatus for and method of color compensation
An apparatus for color compensation includes a chroma deflection generation unit to calculate a chroma deflection based on an input chroma signal and a predetermined first reference value, a hue...
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7333150 |
Method, system, and program product for eliminating error contribution from production switchers with internal DVEs
Measurement of the relative timing between images and associated information, for example video and audio. Image mutual event characteristics are recognized in the images and associated mutual...
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7212247 |
Audio/video system providing variable delay
An audio/video system ( 100 ) is capable of introducing variable amounts of delay into a signal path so as to properly synchronize two signals, such a video signal and a corresponding audio signal....
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7212248 |
Method and apparatus for lipsync measurement and correction
A method and apparatus for synchronizing audio and video portions of a media program signal is disclosed. The method comprises the steps of detecting an audio event in the audio portion of the...
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7209178 |
Optical transfer system having a transmitter and a receiver
An optical transfer system having a transmitter and a receiver converts an externally-applied video signal into an optical signal and restores the optical signal to the original video signal The...
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RE39345 |
Audio/Video/Computer graphics synchronous reproducing/synthesizing system and method
In an audio/video/computer graphics data synchronous reproducing/synthesizing system, a demultiplexer separates a bit stream in which an audio signal, a video signal, and computer graphics data are...
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7075584 |
Buffer system for controlled and timely delivery of MPEG-2 data services
A data elementary buffer with underflow and overflow operational constraints is incorporated into a digital televison receiver to regulate the flow of data related to an ancillary data service to...
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7061547 |
Image displaying system of environment-adaptive type, image processing method and program
An environment-compliant image display system, image processing method and information storage medium which can reproduce the same colors at different locations by absorbing any difference in the...
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7020894 |
Video and audio synchronization
In order to synchronise video and audio signals, a video test signal and an audio test signal are generated at the transmitting end of a transmission link, and transmitted over the link. The video...
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6947069 |
Method and apparatus for connecting fiber optic lines to an information transmission line carrying two way signals
In a method and apparatus for connecting fiber optic lines and a fiber optic receiver and a fiber optic transmitter in an information transmission system carrying information signals propagated...
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6909468 |
Positional difference correcting apparatus between two-route videos
Received videos through A and B routes are inputted in first and second variable devices and then delayed by a first and a second frame memory by one frame to be inputted in a comparator....
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6900828 |
Fade resistant digital transmission and reception system
In a digital broadcast communications system, a higher priority component and a lower priority component are broadcast from a transmitter to a receiver. Each of these components generates a main...
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6894727 |
Picture transmission apparatus, a picture transmission method and a recording medium, and a picture transmission program
Providing picture transmission apparatus, a picture transmission method and a recording medium, and a picture transmission program that can transmit the latest picture data in real time depending...
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6891573 |
Method and apparatus for changing the output delay of audio or video data encoding
For TV broadcasting purposes encoding systems with related video encoders and audio encoders are used. The audio and video delay are aligned before multiplexing and transmitting the audio and video...
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6775842 |
Method and arrangement for transmitting and receiving encoded images
TeleWeb services are currently being developed, in which HTML-encoded images are transmitted in the vertical blanking interval of a conventional analog television signal. For special applications,...
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6744473 |
Editing and switching of video and associated audio signals
To maintain lip-sync when a video signal has been edited or switched at a video frame boundary, the associated audio signal is advanced or retarded to the closest audio frame boundary. Any error...
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6636270 |
Clock slaving methods and arrangements
In accordance with certain aspects of the present invention, an algorithm is provided that can be used to detect and track the difference between an on-host clock (i.e., “host clock”) and a...
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6584120 |
Data multiplexing apparatus and method
In a multiplexer, a channel selection controller determines which channel code is to be selected for a control data generator, each of multiplex buffers, and null packet generator, a PTS/DTS...
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6573942 |
Buffer system for controlled and timely delivery of MPEG-2F data services
A data elementary buffer with underflow and overflow operational constraints is incorporated into a digital televison receiver to regulate the flow of data related to an ancillary data service to...
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6526583 |
Interactive set-top box having a unified memory architecture
According to one embodiment, a graphics/video processor includes a memory controller. The memory controller includes a first arbiter that receives memory client requests to access a memory device,...
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6507370 |
Highly adjustable video composite sync separator and variable gain pixel clock frequency locking apparatus and method
An apparatus and method for extracting vertical (V-SYNC) and horizontal (H-Blank) sync signals from a digital composite sync signal (C-SYNC) of a master video source for use in controlling a second...
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6493035 |
Image signal sync detector
A marker inserting part 2 adds a sync signal is added to an input image signal 1 in its available area, then a signal processing part 4 performs signal processing on a yet-to-be processed...
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6493034 |
Method and apparatus for remote adjustment of a time delay circuit of externally synchronized video transmitters
In a method and apparatus for delaying propagation time of an external synchronizing signal transmitted from a receiver to transmitters which transmit a video signal to the receiver, each...
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6429902 |
Method and apparatus for audio and video end-to-end synchronization
A method and apparatus for synchronization of an audio/visual bitstream is transmitted by an encoder and received by a decoder by employing duplication or elimination of audio samples and video...
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6330031 |
Circuit for generating control signals
A method and apparatus of correlated double sampling is disclosed by creating sampled and clamped signals from CCD imager outputs that are in phase with the CCD imager outputs comprising: providing...
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6330033 |
Pulse detector for ascertaining the processing delay of a signal
A delay tracker for a signal processing system, which delay tracker utilizes a special code or pulse on the active portion of the tracked signal with the system including a pulse detector later in...
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6275265 |
Video signal synchronizing apparatus
An apparatus for performing a generator locking for a video signal including a first video processing circuit for processing an input video signal, an expansion module having a second video...
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6262695 |
Method and apparatus for phase-locking a plurality of display devices and multi-level driver for use therewith
A method and apparatus for phase-locking a plurality of display devices and multi-level driver for use therewith. Each of the display devices displays an image under the control of a distinct clock...
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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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6243032 |
Decode apparatus that can accommodate dynamic change in sample data attribute during decoding process
An A/V signal pickup unit receives an audio digital data stream. A CPU carries out a decode process, and adds tag data indicating the attribute of audio sample data to provide the same to an audio...
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6191821 |
Method and apparatus for synchronization of periodic signals
A method and apparatus for synchronizing unrelated reference signals originating from two or more sources at different locations, which signals may be in different signal formats and/or subject to...
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6175604 |
Clock synchronization over data transmission networks
A technique has been devised which may be used to synchronize a receiver clock to a transmitter clock at either end of a transmission network having jitter intrinsic therein. The technique is...
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6160548 |
Method and mechanism for synchronizing hardware and software modules
A method and system for synchronizing modules associated with audiovisual devices, generally for use with a digital non-linear editor. A logical clock communicates information, including time and...
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6088063 |
Data encoding method and apparatus for outputting encoded data at a designated time
There occurs an output timing lag between audio and video, for example, in case of building a system. Excessive frame skipping, etc. occurs. Prior to comparing a PTS and an SCR of MPEG within an...
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6072832 |
Audio/video/computer graphics synchronous reproducing/synthesizing system and method
In an audio/video/computer graphics data synchronous reproducing/synthesizing system, a demultiplexer separates a bit stream in which an audio signal, a video signal, and computer graphics data are...
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6005633 |
Signal transmitting-receiving system
A signal transmitting-receiving system which has a signal transmitting side system constructed by signal transmitter T1, voice processor T2 and signal receiver T3 and also has a signal receiving...
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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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5959703 |
Apparatus and method for removing error data decoding delay in a DTV
In an error data removing apparatus and method by decoding delay in a DTV system which employs a decoder of the VSB standard, respective segments or respective fields are divided into area 1 and...
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5835165 |
Reduction of false locking code words in concatenated decoders
A concatenated three layer Viterbi, Reed-Solomon/Deinterleaver and Descrambler forward error correction decoder may be utilized in digital video and audio systems, and for direct broadcast...
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5798804 |
Image decoder for decoding variable-length image data using frame synchronizing signal and method of decoding the image data
In an image decoder of MPEG system or the like, a delay buffer which is able to store data which corresponds to at least one frame is provided in the rear stage of an input buffer which is normally...
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5764298 |
Digital data transcoder with relaxed internal decoder/coder interface frame jitter requirements
A transcoder converts a received data stream encoded according to a first coding scheme to a data stream coded according to a second coding schem. The schemes specify a first and a a second maximum...
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5751368 |
Delay detector apparatus and method for multiple video sources
The apparatus and method described herein shows a system of determining the delay of a delayed version of a sequence of images with respect to a relatively undelayed version in a system which...
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5694174 |
Television system capable of synchronizing a receiver with a transmitter by using a reference signal having a varying phase angle
In a television signal transmission system including a transmitter and a receiver, a reference signal has a phase angle between 0° and 360° within a single cycle. The phase angle of the reference...
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5652749 |
Apparatus and method for segmentation and time synchronization of the transmission of a multiple program multimedia data stream
Method and apparatus are provided for segmenting a multiple program multimedia digital data stream for transmission over a distribution communications network. Each program multimedia digital data...
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