US Patent No: 5,193,002

Number of patents in Portfolio can not be more than 2000

Apparatus for the coding/decoding of image signals

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

An apparatus for coding/decoding image signals processes sequential information signals in real time so as to compress the volume of data necessary for representing the corresponding image resulting in a minimum bit rate for transmission of the corresponding image using a transmission network. The coding/decoding apparatus includes a coding arrangement for coding image signals to be transmitted as well as a decoding arrangement for decoding the image signals received. The coding arrangement includes a local image coding loop for images broken down into blocks including a coder incorporating a transformation and quantization arrangement for coding the difference between each block of a local image and the corresponding block of a preceding local image. A decoder of the local image coding loop incorporates a reverse transformation and reverse quantization arrangement for reconstituting each block. The decoding arrangement for decoding the image signals received comprises the decoder of the local image coding loop so as to ensure the decoding of local image blocks and the decoding of the remote image blocks.

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

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
FRANCE TELECOM ETABLISSEMENT AUTONOME DE DROIT PUBLICPARIS104
FRANCE TELECOM ETABLISSEMENT AUTONOMOE DE DROIT PUBLIC (CENTRE NATIONAL D'ETUDES DE TELECOMMUNICATIONS)ISSY LES MOULINEAUX, FR1

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eude, Gerard Torcy, FR 7 201
Guichard, Jacques Nantes, FR 20 464

Cited Art

Patent Info (Count) # Cites Year
 
CANON KABUSHIKI KAISHA (1)
4,887,224 Image data processing apparatus capable of high-speed data encoding and/or decoding 62 1987
 
COMPRESSION LABS, INC. (1)
4,710,813 Low bandwidth video teleconferencing system and method 23 1986
 
EASTMAN KODAK COMPANY (1)
4,774,587 Still video transceiver processor 42 1987
 
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY (1)
5,062,136 Telecommunications system and method 139 1990
 
VICTOR COMPANY OF JAPAN, LTD. (1)
4,985,768 Inter-frame predictive encoding system with encoded and transmitted prediction error 90 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
COASES INVESTMENTS BROS. L.L.C. (33)
6,047,112 Technique for initiating processing of a data stream of encoded video information 11 1995
5,768,561 Tokens-based adaptive video processing arrangement 45 1995
5,625,571 Prediction filter 5 1995
6,435,737 Data pipeline system and data encoding method 22 1995
6,263,422 Pipeline processing machine with interactive stages operable in response to tokens and system and methods relating thereto 20 1995
6,035,126 Data pipeline system and data encoding method 8 1995
6,018,354 Method for accessing banks of DRAM 14 1995
5,878,273 System for microprogrammable state machine in video parser disabling portion of processing stages responsive to sequence.sub.-- end token generating by token generator responsive to received data 6 1995
5,689,313 Buffer management in an image formatter 15 1995
5,784,631 Huffman decoder 33 1995
6,326,999 Data rate conversion 5 1995
5,907,692 Data pipeline system and data encoding method 11 1997
5,724,537 Interface for connecting a bus to a random access memory using a two wire link 20 1997
5,956,519 Picture end token in a system comprising a plurality of pipeline stages 59 1997
6,038,380 Data pipeline system and data encoding method 12 1997
6,079,009 Coding standard token in a system compromising a plurality of pipeline stages 17 1997
5,809,270 Inverse quantizer 11 1997
5,881,301 Inverse modeller 10 1997
6,067,417 Picture start token 11 1997
5,978,592 Video decompression and decoding system utilizing control and data tokens 8 1997
5,956,741 Interface for connecting a bus to a random access memory using a swing buffer and a buffer manager 27 1997
6,018,776 System for microprogrammable state machine in video parser clearing and resetting processing stages responsive to flush token generating by token generator responsive to received data 10 1997
6,112,017 Pipeline processing machine having a plurality of reconfigurable processing stages interconnected by a two-wire interface bus 18 1997
6,122,726 Data pipeline system and data encoding method 5 1997
6,330,665 Video parser 15 1997
7,095,783 Multistandard video decoder and decompression system for processing encoded bit streams including start codes and methods relating thereto 18 2000
7,711,938 Multistandard video decoder and decompression system for processing encoded bit streams including start code detection and methods relating thereto 11 2001
7,149,811 Multistandard video decoder and decompression system for processing encoded bit streams including a reconfigurable processing stage and methods relating thereto 17 2001
6,892,296 Multistandard video decoder and decompression system for processing encoded bit streams including a standard-independent stage and methods relating thereto 4 2001
6,950,930 Multistandard video decoder and decompression system for processing encoded bit streams including pipeline processing and methods relating thereto 3 2001
6,910,125 Multistandard video decoder and decompression system for processing encoded bit streams including a decoder with token generator and methods relating thereto 5 2001
6,697,930 Multistandard video decoder and decompression method for processing encoded bit streams according to respective different standards 6 2001
7,230,986 Multistandard video decoder and decompression system for processing encoded bit streams including a video formatter and methods relating thereto 11 2001
 
TALON RESEARCH, LLC (17)
5,603,012 Start code detector 41 1995
6,217,234 Apparatus and method for processing data with an arithmetic unit 24 1995
5,984,512 Method for storing video information 19 1995
5,835,792 Token-based adaptive video processing arrangement 35 1995
5,828,907 Token-based adaptive video processing arrangement 28 1995
5,829,007 Technique for implementing a swing buffer in a memory array 16 1995
5,821,885 Video decompression 11 1995
5,801,973 Video decompression 3 1995
5,798,719 Parallel Huffman decoder 16 1995
5,768,629 Token-based adaptive video processing arrangement 69 1995
5,761,741 Technique for addressing a partial word and concurrently providing a substitution field 27 1995
5,740,460 Arrangement for processing packetized data 4 1995
5,699,544 Method and apparatus for using a fixed width word for addressing variable width data 4 1995
5,703,793 Video decompression 45 1995
6,330,666 Multistandard video decoder and decompression system for processing encoded bit streams including start codes and methods relating thereto 65 1997
5,995,727 Video decompression 7 1997
6,799,246 Memory interface for reading/writing data from/to a memory 145 1997
 
AVID TECHNOLOGY, INC. (5)
5,577,190 Media editing system with adjustable source material compression 73 1994
6,118,444 Media composition system with enhanced user interface features 24 1996
6,023,531 Quantization table adjustment 12 1997
6,553,142 Quantization table adjustment 5 2002
6,687,407 Quantization table adjustment 6 2003
 
DISCOVISION ASSOCIATES (3)
5,861,894 Buffer manager 6 1995
5,835,740 Data pipeline system and data encoding method 9 1995
5,805,914 Data pipeline system and data encoding method 26 1995
 
ANALOG DEVICES, INC. (1)
7,912,302 Multiprocessor decoder system and method 1 2007
 
SAMSUNG ELECTRONICS CO., LTD. (1)
6,539,060 Image data post-processing method for reducing quantization effect, apparatus therefor 122 2000
 
SONY CORPORATION (1)
5,475,431 Real-time encoding signal extraction and display apparatus 2 1993
 
THOMSON BROADCAST SYSTEMS (1)
5,848,157 System for the shifting of a television signal scrambler 0 1996
 
THOMSON-CSF (1)
5,459,515 Method for dual-standard coding of very low data-rate images and coder-decoder for implementing this method 12 1993
 
U.S. PHILIPS CORPORATION (1)
5,619,267 Video decoder including a control unit 4 1996