Title:
符号化装置及び符号化方法
Document Type and Number:
Japanese Patent JPWO2007129728
Kind Code:
A1
Abstract:
It is possible to provide an encoding device and an encoding method capable of realizing encoding with a very small information amount and a very small calculation amount when encoding higher-band spectrum data according to lower-band spectrum data in a wide-band signal . The device and the method can obtain a high-quality decoded signal even if a large quantization distortion is caused in the lower-band spectrum data. In this device, when encoding higher-band spectrum data in a signal to be encoded, according to lower-band spectrum data in the signal, only for a part (a head portion) of the higher-band spectrum data, the lower-band spectrum data after being quantized is subjected to approximate partial search and higher-band spectrum data is generated according to the search result.
Inventors:
Satoshi Yamanashi
Kaoru Sato
Toshiyuki Morii
Kaoru Sato
Toshiyuki Morii
Application Number:
JP2008514507A
Publication Date:
September 17, 2009
Filing Date:
May 09, 2007
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G10L19/02; G10L19/12; G10L21/038; G10L21/0388; H03M7/30
Attorney, Agent or Firm:
Koichi Washida