US Patent No: 6,895,052

Number of patents in Portfolio can not be more than 2000

Coded signal separating and merging apparatus, method and computer program product

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ALSO PUBLISHED AS: 20020054638
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Herein disclosed a bit stream separating apparatus for inputting and transcoding an original MPEG-2 bit stream, and separating the transcoded MPEG-2 bit stream to generate a transcoded MPEG-2 bit stream and a differential bit stream, which is a differential bit stream between the original MPEG-2 bit stream and the transcoded MPEG-2 bit stream, and a bit stream merging apparatus for inputting and merging the transcoded MPEG-2 bit stream and the differential bit stream to reconstruct the original MPEG-2 bit stream. The bit stream separating apparatus makes it possible for the bit stream merging apparatus to reconstruct the original, high quality, MPEG-2 bit stream from the transcoded MPEG-2 bit stream already received and the differential bit stream, thereby eliminating the effort and time to send the original MPEG-2 bit stream again.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SECOM CO., LTD.TOKYO21

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hanamura, Tsuyoshi Tokyo, JP 7 74
Kasai, Hiroyuki Tokyo, JP 23 110
Nagayoshi, Isao Tokyo, JP 5 29
Tominaga, Hideyoshi c/o Global Information and Telecommunication Institute, Waseda University 3-10,, Shinjuku-ku, Tokyo, JP 10 82

Cited Art

Patent Info (Count) # Cites Year
 
FUNAI ELECTRIC CO., LTD. (1)
6,639,943 Hybrid temporal-SNR fine granular scalability video coding 46 2000
 
GENERAL INSTRUMENT CORPORATION (1)
6,275,536 Implementation architectures of a multi-channel MPEG video transcoder using multiple programmable processors 46 1999
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
6,697,426 Reduction of layer-decoding complexity by reordering the transmission of enhancement layer frames 39 2000
 
KOREA TELECOM (1)
6,452,973 System and method for converting H.261 compressed moving picture data to MPEG-1 compressed moving picture data on compression domain 6 1999
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
6,625,211 Method and apparatus for transforming moving picture coding system 22 2000
 
PACKETVIDEO NETWORK SOLUTIONS, INC. (1)
6,498,865 Method and device for control and compatible delivery of digitally compressed visual data in a heterogeneous communication network 43 1999
 
TRANSPACIFIC INFORMATION, LLC (1)
6,208,745 Method and apparatus for imbedding a watermark into a bitstream representation of a digital image sequence 146 1997

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
SHARP KABUSHIKI KAISHA (9)
8,014,445 Methods and systems for high dynamic range video coding 5 2006
8,194,997 Methods and systems for tone mapping messaging 1 2006
8,233,536 Methods and systems for multiplication-free inter-layer image prediction 0 2007
7,826,673 Methods and systems for inter-layer image prediction with color-conversion 3 2007
7,760,949 Methods and systems for coding multiple dynamic range images 0 2007
8,130,822 Methods and systems for conditional transform-domain residual accumulation 0 2007
8,059,714 Methods and systems for residual layer scaling 0 2007
7,885,471 Methods and systems for maintenance and use of coded block pattern information 3 2007
7,840,078 Methods and systems for image processing control based on adjacent block characteristics 0 2007
 
NVIDIA CORPORATION (3)
7,742,646 Modified high dynamic range color decompression 1 2006
7,983,498 Low dynamic range 3-channel color compression 0 2007
7,920,749 Modified high dynamic range color decompression 0 2007
 
Group des Ecoles des Telecommunications (1)
7,286,714 Method and device for compressing an image signal based upon differential quantization of data 4 2002
 
NOKIA CORPORATION (1)
7,664,176 Method and system for entropy decoding for scalable video bit stream 3 2004
 
PANASONIC CORPORATION (1)
7,505,518 Picture encoding method and image decoding method 3 2003
 
SAMSUNG ELECTRONICS CO., LTD. (1)
7,903,306 Sensor image encoding and/or decoding system, medium, and method 0 2006
 
SHARP LABORATORIES OF AMERICA, INC. (1)
8,422,548 Methods and systems for transform selection and management 0 2007
 
SIEMENS AKTIENGESELLSCHAFT (1)
8,270,470 Transcoding method and device 0 2005

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