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Title:
DATA COMPRESSION CODING METHOD, DECODING METHOD, DEVICE THEREFOR, AND PROGRAM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/021094
Kind Code:
A1
Abstract:
Provided are a compression coding method, device, and program suitable for sequentially coding fixed-length data. The compression coding method comprises: dividing a record in which data of the same kind are described in the same field among predetermined fields, and which comprises a fixed-length bit string including one or more fields, into columns of a predetermined bit width; determining the probability of occurrence of a bit value in the column at the same position throughout a plurality of records on a column by column basis; and coding the plurality of records using an entropy coding method on the basis of the probability of occurrence.

Inventors:
SUZUKI, Takayuki (INC. 6-1, Relier Shin-Kawasaki Bldg., 201 Shin-Tsukakoshi, Saiwai-ku, Kawasaki-sh, Kanagawa 27, 〒2120027, JP)
SHIBATA, Kaoru (INC. 6-1, Relier Shin-Kawasaki Bldg., 201 Shin-Tsukakoshi, Saiwai-ku, Kawasaki-sh, Kanagawa 27, 〒2120027, JP)
Application Number:
JP2017/025955
Publication Date:
February 01, 2018
Filing Date:
July 18, 2017
Export Citation:
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Assignee:
KOUSOKUYA, INC. (6-1 Relier Shin-Kawasaki Bldg, 201 Shin-Tsukakoshi Saiwai-ku, Kawasaki-sh, Kanagawa 27, 〒2120027, JP)
International Classes:
H03M7/40
Domestic Patent References:
WO2013175909A12013-11-28
Foreign References:
JP2010026884A2010-02-04
JP2007221280A2007-08-30
JP2011048514A2011-03-10
Attorney, Agent or Firm:
OSUGA, Yoshiyuki et al. (3rd Fl, Nibancho Bldg. 8-20, Nibancho, Chiyoda-k, Tokyo 84, 〒1020084, JP)
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