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| Number | Title | Issue Date |
| 7379653 | Audio-video synchronization for digital systems The audio-video synchronization process ensures continuity of displayed AV data. To initialize the process, a transport processor determines whether an occupancy criterion of a buffer storing received audio and video frames has been met. If the criterion is met, the... | 05/27/2008 |
| 7356051 | Digital visual interface with audio and auxiliary data cross reference to related applications One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link.... | 04/08/2008 |
| 7305088 | Video distribution playback method, apparatus to be disposed on video distribution end, apparatus to be disposed on video playback end, computer readable medium, and movie distribution method A motion-picture distributor (12) uses a computer system (22) to convert video signals from a master film (14) into serial video data (41) complying with DVD-Video standards. Further, the computer system (22) modifies the sequence ... | 12/04/2007 |
| 7260304 | Recording and accessing metadata Apparatus uniquely identifies material recorded on an example of a recording medium. The medium has distinguishing data, a tape ID, distinguishing that example from other examples thereof recorded thereon. A generator generates data, e.g. IN and OUT time codes, iden... | 08/21/2007 |
| 7136399 | Latency handling for interconnected devices A data processing system comprises a cluster of devices (16) interconnected for the communication of data in streams, particularly digital audio and/or video data. One of the devices (10) is a source device for at least two data streams to be sent to o... | 11/14/2006 |
| 7133362 | Intelligent buffering process for network conference video In order to minimize the delay of the video images viewed by a network conference attendee, an intelligent buffering process (IB process) selectively discards video frames from at least one point, and in an embodiment, many network points, such as at “in” and/or... | 11/07/2006 |
| 7095945 | System for digital time shifting and method thereof A multiplexed packetized data stream carrying real-time multimedia programs is received at a first hardware demultiplexer. Based on a user input, a video and timing portion of a program associated with the multiplexed packetized data stream can be stored for subsequ... | 08/22/2006 |
| 7088398 | Method and apparatus for regenerating a clock for auxiliary data transmitted over a serial link with video data A communication system including a transmitter, a receiver, and a serial link, in which encoded data (e.g., video, audio, and optionally also other auxiliary data) are transmitted from the transmitter to the receiver. The serial link can but need not be a TMDS or TM... | 08/08/2006 |
| 7054544 | System, method and record medium for audio-video synchronous playback In an audio-video synchronous playback control system which outputs coded audio data to an external audio decoding device so as to be decoded and played back by the external audio decoding device while playing back video data maintaining synchronization with the aud... | 05/30/2006 |
| 7039070 | Moving image packet decoding and reproducing apparatus, reproduction time control method thereof, computer program product for controlling reproduction time and multimedia information receiving apparatus Error correcting section holds PTS(n−1) and DTS(n−1) of the frame immediately preceding the current frame and the most recent CPTS as determined to be correct in the past. The time stamp of the current frame is determined to be incorrect if (1) CPTS>PTS(n) which... | 05/02/2006 |
| 7038499 | System and method for a programmable threshold detector for automatically switching to an active mode or standby mode in a device A system and method for a programmable threshold detector. A programmable threshold detector circuit is described comprising an offset current generator circuit, a comparator circuit, a programmable delay circuit, and a counter timer coupled together. The offset cur... | 05/02/2006 |
| 7024575 | Apparatus and method for time synchronization of a plurality of multimedia streams An apparatus and method for time synchronization of a plurality of multimedia streams are described. In one embodiment, the method includes the concurrent capture of multimedia data via a plurality of multimedia platforms. During the concurrent capture of the multim... | 04/04/2006 |
| 6934466 | Buzz reduction circuit and TV/VCR combo using the same Buzz reduction circuit for eliminating a vertical period buzz without being influenced by amplifier circuits in an audio signal line. A video signal of a VCR video head is input to a vertical synchronizing signal separating circuit to separate a vertical synchronizi... | 08/23/2005 |
| 6895174 | Frame number detecting device An object is to provide a frame number detecting device having a frame counter which is less apt to output a wrong frame number even if a sync signal type was erroneously detected from a DVD etc. and the combination of variation of the sync signal types corresponds ... | 05/17/2005 |
| 6801706 | Jitter correcting apparatus and method for video signals A jitter correcting apparatus and method for a video signal in a video signal reproduction system includes a digital video decoder for demodulating an externally-applied video signal and a phase-locked loop for generating a first clock signal synchronized with the v... | 10/05/2004 |
| 6798839 | Image processing device, television receiver and image reproducing device Coded image data having a DTS (decode time stamp) appended for each frame are written into an input buffer. A portion of the storage area of the input buffer is scanned to produce identification information (ID) for each frame of image data. For each frame of image ... | 09/28/2004 |
| 6775257 | Packet-transmitting system A packet-transmitting system comprising a transmitter and a receiver. In the transmitter, the packet-allocating circuit receives a stream of packets. The circuit allocates the packets having PIDs a1 to b1 to the transmission channel #1, ... | 08/10/2004 |
| 6285765 | Method and apparatus for reducing effects of copy protection of composite video signal Copy protection for composite video signals is well known. Copy protection, while it does not prohibit making a copy per se, does render any copy (recording) of the video signal relatively unviewable so that the viewer's enjoyment of the picture is severe... | 09/04/2001 |
| 6148135 | Video and audio reproducing device and video decoding device The video and audio synchronization controller sets a system clock reference (SCR) included in the frame header portion of the coded video and audio data into a system time counter to set a timing of a system time clock (STC), immediately after a video an... | 11/14/2000 |
| 5844622 | Digital video horizontal synchronization pulse detector and processor The invention pertains to a digital video horizontal synchronization pulse detector and processor comprising pulse detector for generating a timing pulse in response to each horizontal synchronization pulse. A sync position error device generates a time p... | 12/01/1998 |
| 5812731 | Signal processing apparatus for adding synchronizing signal to horizontal and vertical blanking periods of a color difference signal A signal processing circuit for adding a synchronizing signal to a predetermined signal, wherein the synchronizing signal oscillates to one side from a reference level of the synchronizing signal, and wherein the predetermined signal oscillates to one sid... | 09/22/1998 |
| 5796794 | Method and apparatus for serial-to-parallel conversion of data based on sync recovery An apparatus and method for converting a serial data signal into a parallel data signal based on sync signals contained within the serial data signal are provided. The serial-to-parallel data conversion apparatus includes a signal input end, a true sync s... | 08/18/1998 |
| 5748733 | Method and apparatus to reduce effects of certain copy protection purses within a video signal Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. The enhancements in one version introduce into the overscan portion of the television picture, just prior to the horizontal... | 05/05/1998 |
| 5712741 | Synchronizing signal detecting apparatus for digital video cassette recorder A synchronizing signal detecting apparatus for a digital video cassette recorder (DVCR), which can detect a more stable synchronizing signal by detecting the synchronizing signal in a parallel processing method includes input signal convertor for converti... | 01/27/1998 |
| 5579118 | Apparatus for processing a still screen in a digital video reproducing system An apparatus for processing a still screen in a digital video reproducing system which eliminates a color pattern appearing at a color boundary portion when digital video data is displayed in a still screen mode is disclosed. In the apparatus for processi... | 11/26/1996 |
| 5559812 | Digital time base corrector using a memory with reduced memory capacity A digital time base corrector uses a memory with a reduced storage capacity, to reduce the cost. Absolute value data of an amplitude and polarity data of a burst signal in a color video signal are written into a memory every horizontal scan period. A sign... | 09/24/1996 |
| 5488481 | Apparatus for generating a composite video signal A digital recording/reproducing apparatus having an external input digital interface is disclosed. A changeover switch is controlled by a changeover control circuit for selecting horizontal synchronizing signals generated by horizontal synchronizing gener... | 01/30/1996 |
| 5481608 | Method and an apparatus for preventing unauthorized copying of video signals on tape A method and an apparatus for modifying video signals in such a manner that, when recording said signals with a tape recording apparatus, the control of this apparatus is disturbed, which signals comprise image point signals grouped according to image lin... | 01/02/1996 |
| 5278706 | Digital video signal recording/reproducing apparatus In a digital video signal recording/reproducing apparatus for recording digital VCR video and audio signals by using a rotary cylinder, for a video signal with a frame frequency fN of 30 Hz or 29.97 Hz, the rotating frequency of the cylinder is set to 2.5... | 01/11/1994 |
| 5267040 | Structure and method for detecting phase errors in the horizontal synchronization pulses of television signals A method and a structure are provided to detect phase errors in horizontal synchronization pulses of video signals. A detected phase error is used to provide a phase correction for each horizontal line of the video image. In one embodiment, the phase corr... | 11/30/1993 |
| 5083212 | Apparatus and method for recording a color television signal on an optical disc In an apparatus and method for optically recording on an optical disk a television signal comprised of a color image signal and an audio signal; one horizontal period portion of an original luminance signal and one horizontal period portion of two origina... | 01/21/1992 |
| 5045950 | Circuit for detecting and compensating for jitter produced by a recording/reproducing apparatus An improved jitter detecting method and an apparatus thereof, for detecting jitter generated in a reproduced video signal of a VTR or video disc wherein a frequency-modulated carrier of a video signal is recorded by synchronizing the leading edge of a syn... | 09/03/1991 |
| 4972335 | Video signal recording and reproducing apparatus and method suitable for recording video signals including horizontal scanning line signals Video signals within one vertical scanning period are divided into a plurality of line block signals. These line block signals are shifted on time base, and a redundant interval (͌H) is formed between two line block signals. Further, a plurali... | 11/20/1990 |
| 4870297 | Circuitry for removing information from, or modifying information in, the vertical interval of a television signal Composite sync is separated from a video signal and integrated in order to produce a vertical control pulse. This pulse is then applied to the input of a one-shot multivibrator which provides an output essentially equal in duration to the time from the en... | 09/26/1989 |
| 4769704 | Synchronization signal generator A synchronization signal generator for NTSC, PAL or PALM system, capable of synchronizing by external signal; wherein horizontal information signal of external synchronization signal is processed through a stabilization circuit, and its output is frequenc... | 09/06/1988 |
| 4763202 | Time division multiplex video recorder with high resolution A time division multiplex video tape recorder has a channel for receiving the main portion of an incoming video signal, comprising the luminance signal and horizontal synchronization pulse, and a separate channel for receiving the modulated sub-carrier po... | 08/09/1988 |
| 4758890 | Quantizing television horizontal phase to subcarrier zero crossings A circuit for quantizing television horizontal phase to subcarrier zero crossings has a voltage variable delay circuit to delay the leading edges of incoming horizontal pulses to produce a delayed horizontal pulse output. The corresponding leading edges o... | 07/19/1988 |
| 4751575 | Method of timing sampling frequency pulses for digitizing and storing color television signals reproduced from magnetic tape A highly stable clock pulse frequency (f2), which may be locked to a central clock pulse source of a broadcasting studio, is used to clock digital color television signals out of a buffer memory (1) and is also frequency multiplied by a factor (n). The ou... | 06/14/1988 |
| 4737861 | System for recording component signals and reproducing a composite video signal and component signals including adding color burst to the luminance component A system for recording and reproducing three component signals configuring the video signal is equipped with a first synchronizing signal generator used to generate a burst signal to be added to a luminance signal and a color component signal during recor... | 04/12/1988 |
| 4691247 | Video signal recording/reproducing apparatus A video signal recording/reproducing apparatus for recording and reproducing a video signal onto and from a recording medium with a magnetic head. In this apparatus, the recording chrominance signal processing block is provided with a circuit for producin... | 09/01/1987 |
