Title:
符号化装置、復号化装置、符号化方法、復号化方法、符号化プログラム、復号化プログラム、および記録媒体
Document Type and Number:
Japanese Patent JP4971965
Kind Code:
B2
Abstract:
To reduce a code amount by achieving high coding efficiency for a signal stream.
A coding device includes a separation section, an analysis section and a multi-dimensional coding section. The separation section divides the signal stream X composed of the predetermined number of signals, into the M number of separation signal stream Y1, ..., YM, composed of the N number of signals. The analysis section generates a signal stream Zm for multi-dimension in which predetermined q-digits in each signal ym(n) is made into one signal zm(n), and a residual signal stream Bmin which remaining digits or part of the remaining digits in the signal ym(n), is made into one signal bm(n), for each separation signal stream Ym(n). The multi-dimensional coding section generates a corresponding variable length code, for each n-th signal combination äz1(n), z2(n), ..., zM(n)} of the signal stream Z1, ..., ZMfor multi-dimension. The decoding device including a multi-dimensional decoding section, a restoring section and a synthesis section, performs reverse processing of the coding device.
COPYRIGHT: (C)2009,JPO&INPIT
Inventors:
Takehiro Moriya
Noboru Harada
Yu Kamamoto
Application Number:
JP2007324589A
Publication Date:
July 11, 2012
Filing Date:
December 17, 2007
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G10L19/00; H03M7/30
Domestic Patent References:
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Taku Kusano
