Variable-length encoding method, variable-length decoding...

Details Variable-length encoding method, variable-length decoding... Variable-length encoding method, variable-length decoding...

2007-07-24

2007-07-24

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

C341S106000, C341S107000

Reexamination Certificate

active

11368437

ABSTRACT:
The present invention correctly decodes data encoded with a variable-length encoding method that improves the compression ratio. The variable-length encoding method encodes a unit data composed of a plurality of sub-data while referencing a parameter table, and includes: an initialization step in which the parameter table is set to initial values; a parameter table information encoding step in which information related to the initialized parameter table is encoded; a parameter obtaining step in which encoding parameters to be used in the encoding of sub-data are obtained from the parameter table; a sub-data encoding step in which variable-length encoding of the sub-data is performed with reference to the obtained encoding parameters; and an encoded information placement step in which the encoded information is placed in a position in which the information can be obtained before the encoded unit data.

REFERENCES:
patent: 5287468 (1994-02-01), Furuhashi et al.
patent: 5532694 (1996-07-01), Mayers et al.
patent: 5666161 (1997-09-01), Kohiyama et al.
patent: 5856930 (1999-01-01), Hosono
patent: 5940289 (1999-08-01), Iwata et al.
patent: 5995148 (1999-11-01), Haskell et al.
patent: 6026198 (2000-02-01), Okada
patent: 6252992 (2001-06-01), Ishikawa
patent: 6493385 (2002-12-01), Sekiguchi et al.
patent: 2001/0012365 (2001-08-01), Gaedke et al.
patent: 5-199422 (1993-08-01), None
patent: 6-225279 (1994-08-01), None
patent: 8-46521 (1996-02-01), None
patent: 99/22525 (1999-05-01), None
Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG,Joint Model No. 1(JM-1), Document JVT-A003, File JVT-A003.doc, Generated Jan. 2002, Pattaya, Thailand Dec. 3-7, 2001.
Nick B. Body et al., “Efficient Representation and Decoding of Static Huffman Code Tables in a Very Low Bit Rate Environment”. Image Processing, 1998. ICIP 98. Proceeding. 1998 International Conference on Chicago, IL, USA, IEEE Comput. Soc., U.S., vol. 3, Oct. 4, 1998, pp. 90-94.
Frank Hartung et al., “Improved Encoding of DCT Coefficients for Low Bit-rate Video Coding Using Multiple VLC Tables”, Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on Kobe, Japan. Oct. 24-28, 1999, Piscataway, NJ, USA, IEEE, U.S., Oct. 24, 1999, pp. 51-55.
N. Jesper Larsson et al., “Off-line Dictionary-based Compression”. Proceedings of the IEEE. IEEE, New Yrok, U.S., vol. 88, No. 11, Nov. 2000.

Affiliated with

Also associated with

Rating

Variable-length encoding method, variable-length decoding... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable-length encoding method, variable-length decoding..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable-length encoding method, variable-length decoding... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3796378