Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR ENHANCING PERFORMANCE OF CODING SYSTEM THAT USE HIGH FREQUENCY RECONSTRUCTION METHOD
Document Type and Number:
Japanese Patent JP2007293354
Kind Code:
A
Abstract:

To provide a method and apparatus for improving coding systems in which high frequency reconstruction methods (HFR) are used.

The overall performance of such systems is improved by adapting, with time, the crossover frequency between the lowband coded by a core-codec and the highband coded by an HFR system. Different methods of establishing the instantaneous optimum choice of crossover frequency are introduced.

COPYRIGHT: (C)2008,JPO&INPIT


More Like This:
JPH041700VOICE SYNTHESIZER
JPS5936279[Title of the Invention] Voice analysis processing method
JP2020085942INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
Inventors:
HENN FREDRIK
EHRET ANDREAS
SCHUG MICHAEL
Application Number:
JP2007142978A
Publication Date:
November 08, 2007
Filing Date:
May 30, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CODING TECH AB
International Classes:
G10L13/00; G10L19/02; G10L19/18; G10L21/038; H03M7/30
Domestic Patent References:
JPH05297895A1993-11-12
JPH07336232A1995-12-22
JPH08166799A1996-06-25
JPH05297894A1993-11-12
Foreign References:
WO1998057436A21998-12-17
Attorney, Agent or Firm:
Takao Matsuyama



 
Previous Patent: LIQUID CRYSTAL DISPLAY, D/A CONVERSION CIRCUIT, AND SEMICONDUCTOR DEVICE

Next Patent: METHOD AND APPARATUS FOR DETERMINING ENCODING RATE IN VARIABLE RATE VOCODER