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6542549 |
Method and model for regulating the computational and memory requirements of a compressed bitstream in a video decoder
An apparatus for the verification of compressed objected-oriented video bitstream includes a set of verifier models: Video Complexity Verifier (VCV), Video memory Verifier (VMV) and Video...
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6542546 |
Adaptable compressed bitstream transcoder
A multi-media delivery system for delivering a compressed bitstream through a network to a user device includes a transcoder and a manager. The transcoder is configured to operate on the bit stream...
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6526099 |
Transcoder
In a transcoder means are provided for implementing a simultaneous change in rate and in resolution. In a preferred embodiment means are also provided for transferring incoming motion vectors or...
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6526100 |
Method for transmitting video images, a data transmission system and a multimedia terminal
The invention relates to a method for transmitting video images between multimedia terminals ( 1,1 ′) in a data transmission system. In the video image transmission first video frames (I) are...
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6512884 |
Method and apparatus for synchronized play back of audio-video signals
A method and an apparatus for synchronized play back of audio-video signals, even when plural digitally compressed audio data are separated and played back, avoid time lag or lead of reference time...
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6512794 |
Receiver and transmitter-receiver
The receiver and transmitter/receiver in accordance with the present invention comprises a common input terminal for inputting digital data including uncompressed video data or compressed video...
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6498816 |
Circuit and method for formatting each of a series of encoded video images into respective regions
A video processing circuit includes a processor that receives encoded images each having respective first and second regions and that receives a motion vector of the first region of a first one of...
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6493392 |
Method for coding digital interlaced moving video
A method for coding a digital interlaced moving video. Picture-unit overhead information is first transmitted and it is then determined whether a video packet to be coded is a first packet of a...
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6486918 |
Method for storing video frame data in a memory
A method for storing video frame data in a memory includes the steps of: sequentially receiving the video frame data; dividing the video frame data into a first part and a second part; storing the...
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6480234 |
Method and apparatus for synchronously encoding audio signals with corresponding video frames
This invention enables coded audio data to be reliably decoded even if an audio signal coded in blocks not in synchronism with the frames or fields of a video signal is decoded on the basis of...
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6480545 |
Architecture for multi-format video processing
An architecture for multi-format video processing of both high definition and standard definition television signals has a pair of processing paths. For HDTV one path processes the luminance...
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6466623 |
Method and apparatus for motion estimation for high performance transcoding
Methods and systems for generating motion vectors for re-encoding video signals are disclosed. The motion vector is determined by the sum of a base motion vector and a delta motion vector. In the...
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6462744 |
IMAGE DECODING APPARATUS THAT PERFORMS IMAGE DECODING SO THAT FRAME AREAS THAT OCCUPY A LARGE AREA IN A STORAGE APPARATUS CAN BE USED FOR OTHER PURPOSES, AND A RECORDING MEDIUM RECORDING AN IMAGE DECODING PROGRAM
When an OSD data storage area for storing OSD data needs to be reserved, an area of a frame storage apparatus that should store macroblocks corresponding to an invisible area on a screen is...
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6459738 |
Method and apparatus for bitstream decoding
A decoder for decoding a compressed incoming interruptible bitstream is disclosed. The decoder includes an input register that is capable of receiving a latch command, and that is further capable...
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6456782 |
Data processing device and method for the same
Even the case where the transmission rate for packets is varied in forming a sequence of packets from the packets, time information previously added to each packet is corrected based on absolute...
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6452971 |
Moving picture transforming system
Moving picture transforming system which executes transformation of moving picture coding scheme at high speed and with less degradation of picture quality, in that there are provided a motion...
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6449310 |
Video signal coding apparatus
A video signal coding apparatus comprises a divider 102 that divides an input digital video signal into an effective area and an additional area, an effective-area blocking device 103 for...
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6442207 |
Image coded data re-encoding apparatus without once decoding the original image coded data
An image coded data re-encoding apparatus ( 30 ) which generates in an image coded data analyzer ( 310 ) coded data after signal processing ( 221 ) by performing a first digital signal processing...
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6438316 |
Recording/reproducing apparatus and method for including line numbers
A line number LN is extracted from serial data corresponding to BTA S-004 standard. The line number LN is placed as LN 0 and LN 1 to each of a luminance signal Y and color difference signals...
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6438171 |
Method and apparatus for modifying tables of data
Tables of data included in a digital stream of encoded data, e.g. a digital transport stream of a digitally compressed television signal, are modified. The tables of data are extracted from the...
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6434197 |
Multi-functional transcoder for compressed bit streams
A method and apparatus for transcoding digital video data, for example, at the headend of a cable or satellite television network. A generic multi-functional transcoder architecture has a...
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6424677 |
Video/audio processing system providing real time program duration alteration
The running real time length of combined video and audio signal programs is shortened or lengthened by deleting or repeating individual fields or frames and corresponding amounts of audio segments....
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6414999 |
Editing method and editing apparatus
An edit point of an earlier GOP 1 is placed after an I picture I 22. In addition, the edit point is not placed immediately after an I or P picture. Thus, the GOP 1 is decoded. A stream placed...
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6414992 |
Optimal encoding of motion compensated video
The present invention involves a system and method for optimizing video encoding. For each candidate motion vector, encoding distortion is determined between a macroblock and a reconstructed...
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6408030 |
Scene-change-point detecting method and moving-picture editing/displaying method
A method, apparatus and computer program for detecting a scene change point in a moving picture which has been coded according to a moving-picture coding process. The moving picture coding process...
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6400767 |
Communication of HBI data in digital television data streams
A method and apparatus are provided for communicating HBI user information in digital television data streams via a generic syntax. The syntax allows the digital transport of virtually any type of...
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6393156 |
Enhanced transform compatibility for standardized data compression
In an apparatus and method for image/video enhancement, pre-processing and post-processing techniques are employed to effectively modify the transforms used in a fixed, standardized data...
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6380991 |
Method for splicing MPEG-2 transport streams
A method for splicing video in MPEG-2 transport stream based on locally available data identifies a splice point in a first video stream at an anchor frame and a splice point in a second video...
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6381281 |
Information compressing apparatus
Detection is made as to whether or not a first video signal becomes discontinuous and hence a defective frame picture occurs in a stream of frame pictures represented by the first video signal. The...
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6377628 |
System for maintaining datastream continuity in the presence of disrupted source data
An MPEG decoder in a high definition television receiver decodes and decompresses MPEG coded data to produce decompressed image pixel blocks, and includes a motion compensation network coupled to a...
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6373530 |
Logo insertion based on constrained encoding
When logos or other imagery are to be added to compressed digital video bitstreams, certain constraints are applied to the encoder that generates the original compressed bitstream to enable a video...
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6373898 |
High-speed start code scanner for MPEG-2 data streams
A word wise search is performed on an MPEG-2 stream. For every word, the invention finds word-aligned patterns of 0×00 0×00 or 0×00 0×01. The algorithm applied by the invention examines the...
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RE37620 |
Bandwidth efficient communication of user data in digital television data stream
A method and apparatus are provided for communicating VBI user information for digital television. A syntax is provided which allows the transport of closed captions, non-realtime video, sampled...
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6366617 |
Programmable filter for removing selected user data from an MPEG-2 bit stream
An MPEG- 2 video decoder which identifies and removes selected User Data fields from an MPEG- 2 bit-stream before storing the bit-stream into the VBV buffer of the decoder. The decoder monitors...
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6363116 |
Picture quality assessment using spatial location with or without subsampling
A picture quality assessment method based upon spatial location with or without subsampling within the picture divides the video picture into a plurality of arbitrarily sized, geometric segments. A...
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6359927 |
Method and apparatus for allocating a bandwidth of a video signal having variable bit rates
A method and apparatus for allocating a bandwidth to bit streams of a video signal having variable bit rates, wherein the bit streams are transmitted to an ATM(asynchronous transfer mode) network,...
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6356591 |
Video and audio processing method and apparatus
A video and audio data processing method and apparatus by which a plurality of sets of video data and audio data are processed so as to have a data format such as the SDI format with which they can...
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6353635 |
Method for simultaneously controlling multiple devices using a single communication channel
A Bandwidth Resolution Conflict component combines control data for multiple controlled devices into a unified control data signal that can be transmitted on a single communication channel. To...
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6349115 |
Digital signal encoding apparatus, digital signal decoding apparatus, digital signal transmitting apparatus and its method
In the speckled broadcasting of HDTV and SDTV, an encoding transmitting apparatus and a decoding receiving apparatus can perform a parallel multichannel transmission and reception of SDTV with a...
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6347151 |
Image signal converting/encoding method and apparatus
An image signal expressing pel values and a significance signal declaring for each pel whether the pel value is significant are supplied as input signals. By referring to the input significance...
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6339619 |
Moving picture bitstream conversion apparatus and method thereof
A bitstream of moving pictures which has been processed by motion-compensated interframe prediction is converted into another bitstream. The input bitstream is separated into first codes of a...
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6337882 |
Method and apparatus for generating unlimited selected image views from a larger image
A selected image view generator is disclosed for generating a selected portion of a larger compressed image. A selected image view from an overall image is generated with significantly reduced...
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6335766 |
System and method for transmitting advanced television signals
A system and method for transmitting advanced television signals such as digital television signals. The system and method controls the frequency of the RF signal by compensating for errors in the...
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6332003 |
Moving image composing system
A moving image composing system for displaying reduced and encoded images at arbitrary positions on a multi-image raster. The moving image composing system comprises a moving image reducing unit...
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6330286 |
Flow control, latency control, and bitrate conversions in a timing correction and frame synchronization apparatus
In a compressed domain digital communications system, a method for reducing a variable latency associated with a buffer and at least partially resulting from at least one splice between a FROM...
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6330284 |
Video coding and video encoding apparatus according to a reduction ratio setting information signal
A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture...
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6314140 |
Dynamic video focus control
In a video camera the effects of global motion of a subject being photographed are accommodated by varying the pixel definition or focus of a digitally transmitted video image in response to...
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6298090 |
System for detecting redundant images in a video sequence by comparing two predetermined threshold values
A system for detecting redundant images in a video sequence includes dividing a target image in the video sequence into a plurality of regions, and determining, for each of the plurality of...
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6295647 |
Context life time management of a user interface in a digital TV broadcast
In a digital television broadcast that contains executable code segments that are associated with specific video segments, a context duration time is defined for each executable component. The...
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6278738 |
Method and device for transmitting video data in radio communication system
A device for transmitting video data is provided which includes a temporary memory, a standby memory, a bit counter, and a controller. The temporary memory stores N original blocks of data which...
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