Title:
効率的なエンコーディングに対する高速スペクトル分割
Document Type and Number:
Japanese Patent JP2011501246
Kind Code:
A
Abstract:
Methods of spectral partitioning which may be implemented in an encoder are described. The methods comprise determining an estimate of bit requirements for each of a plurality of spectral sub-bands. These estimates are then used to group the sub-bands into two or more regions by minimizing a cost function. This cost function is based on the estimates of bit requirements for each sub-band and the estimates may include estimates of code bit requirements and/or additional code bit requirements for each sub-band. These estimates may be determined in many different ways and a number of methods are described.
Inventors:
Hargreaves, David
The Valle Hey, Esfan Dier
The Valle Hey, Esfan Dier
Application Number:
JP2010531585A
Publication Date:
January 06, 2011
Filing Date:
September 09, 2008
Export Citation:
Assignee:
Cambridge Silicon Radio Limited
International Classes:
G10L19/02; H03M7/30; G10L19/00; G10L19/002
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito