High-efficiency coding apparatus for compressing a digital video signal while controlling the coding bit rate of the compressed digital data so as to keep it constant

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

5307177

SERIAL NO

07794218

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Digital video signals are divided in blocks, maximum and minimum values of each block are extracted, and a frequency distribution of one frame period of a dynamic range in each block is detected. The coding condition is determined by the frequency distribution and a predetermined N kinds of characteristic tables, and by determining only one characteristic table, the signal obtained by subtracting the minimum value of each block from the digital video signals of each block is coded in variable length according to the dynamic range of each block. The characteristic table shows the relationship of the distortion or the number of quantization bits between the original signal and decoded signal after coding and decoding with respect to the dynamic range of digital video signal in each block, and the picture quality of decoded image is set as a parameter.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.OSAKA11438

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bannai, Tatsushi Sakai, JP 47 658
Shibata, Hideaki Osaka, JP 46 464

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SONY CORPORATION (3)
* 4703352 High efficiency technique for coding a digital video signal 120 1985
* 4710811 Highly efficient coding apparatus for a digital video signal 104 1985
* 5166987 Encoding apparatus with two stages of data compression 68 1991
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
* 4547811 Method and apparatus for gray level signal processing 119 1982
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (5)
6731295 Graphics display system with window descriptors 8 1999
6661422 Video and graphics system with MPEG specific data transfer commands 68 2000
7256790 Video and graphics system with MPEG specific data transfer commands 24 2003
7598962 Graphics display system with window descriptors 2 2004
* 2004/0150,652 Graphics display system with window descriptors 1 2004
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 2006/0106,870 Data compression using a nested hierarchy of fixed phrase length dictionaries 14 2004
 
Minolta Co., Ltd. (2)
6366702 Method of and apparatus for image processing 3 1998
6404919 Image processor for encoding image data 24 1998
 
SONY CORPORATION (2)
* 5610998 Apparatus for effecting A/D conversion on image signal 6 1994
* 5469216 Apparatus and method for processing a digital video signal to produce interpolated data 122 1994
 
Akikaze Technologies, Inc. (1)
7403565 Region-based information compaction as for digital images 5 2003
 
DOLBY LABORATORIES LICENSING CORPORATION (5)
* 8594188 High precision encoding and decoding of video images 0 2011
* 8576907 High precision encoding and decoding of video images 0 2011
* 2011/0103,470 High Precision Encoding and Decoding of Video Images 2 2011
* 2011/0103,471 High Precision Encoding and Decoding of Video Images 1 2011
8488670 High precision encoding and decoding of video images 2 2013
 
MARK KLEIN (1)
* 5491685 System and method of digital compression and decompression using scaled quantization of variable-sized packets 16 1994
 
SCIMED LIFE SYSTEMS, INC. (1)
7911483 Graphics display system with window soft horizontal scrolling mechanism 2 1999
 
DOLBY LICENSING CORPORATION (2)
8374237 High precision encoding and decoding of video images 8 2001
* 2002/0154,693 High precision encoding and decoding of video images 153 2001
 
FUJI XEROX CO., LTD. (1)
* 5818974 Image coding apparatus 11 1997
 
BANK OF AMERICA, N.A. (7)
* 2004/0246,257 Graphics accelerator 6 2004
* 2005/0044,175 Transport processor 6 2004
* 2007/0030,276 Video and graphics system with parallel processing of graphics windows 5 2006
* 2006/0268,012 Video, audio and graphics decode, composite and display system 14 2006
* 2006/0290,708 Graphics display system with anti-flutter filtering and vertical scaling feature 3 2006
* 2007/0285,440 GRAPHICS DISPLAY SYSTEM WITH VIDEO SYNCHRONIZATION FEATURE 14 2007
* 2008/0094,416 GRAPHICS DISPLAY SYSTEM WITH ANTI-FLUTTER FILTERING AND VERTICAL SCALING FEATURE 1 2007
 
THOMSON LICENSING DTV (2)
* 5844608 Picture element processor for a memory management system 74 1996
* 6167086 Overhead data processor in a memory efficient image processing system 5 1997
 
MITSUBISHI DENKI KABUSHIKI KAISHA (2)
* 5583573 Video encoder and encoding method using intercomparisons of pixel values in selection of appropriation quantization values to yield an amount of encoded data substantialy equal to nominal amount 45 1995
* 6052488 Image coding apparatus for converting image information to variable length codes of predetermined code size, method of image coding and apparatus for storing/transmitting image 15 1997
 
AKIKAZE TECHNOLOGIES, LLC (4)
6560285 Region-based information compaction as for digital images 17 1999
* 2003/0202,589 Region-based information compaction as for digital images 16 2003
RE42589 Enhanced MPEG information distribution apparatus and method 1 2006
RE43647 Region-based information compaction as for digital images 0 2010
 
BROADCOM CORPORATION (75)
6927783 Graphics display system with anti-aliased text and graphics feature 8 1999
6744472 Graphics display system with video synchronization feature 28 1999
6738072 Graphics display system with anti-flutter filtering and vertical scaling feature 15 1999
6700588 Apparatus and method for blending graphics and video surfaces 69 1999
6661427 Graphics display system with video scaler 30 1999
6630945 Graphics display system with graphics window control mechanism 12 1999
6608630 Graphics display system with line buffer control scheme 10 1999
6570579 Graphics display system 72 1999
7446774 Video and graphics system with an integrated system bridge controller 22 2000
6975324 Video and graphics system with a video transport processor 70 2000
6853385 Video, audio and graphics decode, composite and display system 92 2000
6798420 Video and graphics system with a single-port RAM 52 2000
6768774 Video and graphics system with video scaling 42 2000
6636222 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 74 2000
6573905 Video and graphics system with parallel processing of graphics windows 122 2000
6538656 Video and graphics system with a data transport processor 165 2000
6529935 Graphics display system with unified memory architecture 5 2000
* 2002/0106,018 Single chip set-top box system 45 2001
6983017 Method and apparatus for implementing reduced memory mode for high-definition television 14 2001
6819330 Graphics display System with color look-up table loading mechanism 1 2001
6781601 Transport processor 82 2002
6721837 Graphics display system with unified memory architecture 8 2002
8913667 Video decoding system having a programmable variable-length decoder 0 2003
* 2004/0028,141 Video decoding system having a programmable variable-length decoder 25 2003
6870538 Video and graphics system with parallel processing of graphics windows 21 2003
7057622 Graphics display system with line buffer control scheme 1 2003
7277099 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 8 2003
* 2005/0012,759 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 45 2003
7530027 Graphics display system with graphics window control mechanism 5 2003
* 2004/0017,398 Graphics display system with graphics window control mechanism 4 2003
7538783 Graphics display system with video scaler 7 2003
7002602 Apparatus and method for blending graphics and video surfaces 7 2003
* 2004/0130,558 Apparatus and method for blending graphics and video surfaces 1 2003
9077997 Graphics display system with unified memory architecture 0 2004
* 2004/0177,190 Graphics display system with unified memory architecture 3 2004
* 2004/0177,191 Graphics display system with unified memory architecture 2 2004
7015928 Graphics display system with color look-up table loading mechanism 2 2004
* 2004/0169,660 Graphics display system with color look-up table loading mechanism 3 2004
6879330 Graphics display system with anti-flutter filtering and vertical scaling feature 3 2004
* 2004/0207,644 Graphics display system with anti-flutter filtering and vertical scaling feature 1 2004
7991049 Video and graphics system with video scaling 7 2004
* 2004/0208,245 Video and graphics system with video scaling 21 2004
7227582 Graphics display system with video synchronization feature 3 2004
* 2004/0212,730 Video and graphics system with video scaling 53 2004
7365752 Video and graphics system with a single-port RAM 16 2004
8063916 Graphics layer reduction for video composition 1 2004
* 2005/0088,446 Graphics layer reduction for video composition 9 2004
7110006 Video, audio and graphics decode, composite and display system 45 2004
* 2005/0122,335 Video, audio and graphics decode, composite and display system 40 2004
7071944 Video and graphics system with parallel processing of graphics windows 8 2005
* 2005/0122,341 Video and graphics system with parallel processing of graphics windows 28 2005
* 2005/0168,480 Graphics display system with anti-flutter filtering and vertical and vertical scaling feature 1 2005
7098930 Graphics display system with anti-flutter filtering and vertical scaling feature 6 2005
7184058 Graphics display system with anti-aliased text and graphics feature 4 2005
7489729 Method and apparatus for implementing reduced memory mode for high-definition television 2 2005
* 2005/0271,145 Method and apparatus for implementing reduced memory mode for high-definition television 0 2005
7667710 Graphics display system with line buffer control scheme 2 2006
7659900 Video and graphics system with parallel processing of graphics windows 7 2006
7667715 Video, audio and graphics decode, composite and display system 18 2006
7310104 Graphics display system with anti-flutter filtering and vertical scaling feature 5 2006
7746354 Graphics display system with anti-aliased text and graphics feature 0 2006
7545438 Graphics display system with video synchronization feature 2 2007
7848430 Video and graphics system with an MPEG video decoder for concurrent multi-row decoding 13 2007
7554553 Graphics display system with anti-flutter filtering and vertical scaling feature 4 2007
7554562 Graphics display system with anti-flutter filtering and vertical scaling feature 2 2007
8165220 Method and apparatus for implementing reduced memory mode for high-definition television 0 2009
* 2009/0196,347 METHOD AND APPARATUS FOR IMPLEMENTING REDUCED MEMORY MODE FOR HIGH-DEFINITION TELEVISION 1 2009
7920151 Graphics display system with video scaler 9 2009
* 2009/0295,834 GRAPHICS DISPLAY SYSTEM WITH VIDEO SCALER 1 2009
8390635 Graphics accelerator 0 2010
* 2011/0193,868 GRAPHICS ACCELERATOR 1 2010
8493415 Graphics display system with video scaler 0 2011
8199154 Low resolution graphics mode support using window descriptors 1 2011
8848792 Video and graphics system with video scaling 1 2011
9111369 Graphics accelerator 0 2013
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 6542549 Method and model for regulating the computational and memory requirements of a compressed bitstream in a video decoder 33 1999
* Cited By Examiner