Title:
【発明の名称】アナログ信号の符号化方法及び装置
Document Type and Number:
Japanese Patent JPH06501113
Kind Code:
A
Abstract:
PCT No. PCT/NL91/00200 Sec. 371 Date Apr. 9, 1993 Sec. 102(e) Date Apr. 9, 1993 PCT Filed Sep. 25, 1991 PCT Pub. No. WO92/06470 PCT Pub. Date Apr. 16, 1992.In a code excited linear prediction (CELP) analog signal coding system sequences from a master codebook (40), which may be a one dimensional codebook, are filtered (42) and then stored in slave codebooks (70,72). Input analog siganls (20)are filtered (34,36) and compared orthogonally (66,78,80) with sequences from the slave codebooks and an optimum pair of sequences are selected. Reduced length sequences from the master codebook may be compared with orthogonalized analog signals since orthogonalized siganls contain some redundancy.
Inventors:
Elliott, Patrick William
Murthley, Timothy James
Murthley, Timothy James
Application Number:
JP51776591A
Publication Date:
January 27, 1994
Filing Date:
September 25, 1991
Export Citation:
Assignee:
Philips Electronics Nemrose Fennaught Shap
International Classes:
G06T9/00; G10L19/083; G10L19/12; G10L19/16; G10L25/24; G10L25/27; (IPC1-7): G10L9/14; G10L9/16; G10L9/18
Attorney, Agent or Firm:
Tadahiko Ito (1 outside)