Global Patent Index - EP 2045800 A1

EP 2045800 A1 20090408 - Method and apparatus for transcoding

Title (en)

Method and apparatus for transcoding

Title (de)

Transkodierverfahren und -vorrichtung

Title (fr)

Procédé et appareil de transcodage

Publication

EP 2045800 A1 20090408 (EN)

Application

EP 07117956 A 20071005

Priority

EP 07117956 A 20071005

Abstract (en)

A method and apparatus for transcoding comprising means (10) for partially decoding a first bitstream of a first codec format by extracting at least linear predictive coding coefficients from the first bitstream; means (20) for mapping the extracted linear predictive coding coefficients into linear predictive coding coefficients of a second codec format; and means (20) for encoding the partially decoded first bitstream into a second bitstream of a second codec format using the mapped linear predictive coding coefficients, wherein the apparatus comprises means (30) for modifying the sampling frequency of the extracted linear predictive coding coefficients before the mapping of the extracted linear predictive coding coefficients.

IPC 8 full level

G10L 19/14 (2006.01); G10L 19/16 (2013.01); G10L 21/02 (2006.01); G10L 21/038 (2013.01); G10L 19/06 (2006.01)

CPC (source: EP)

G10L 19/173 (2013.01); G10L 21/038 (2013.01); G10L 19/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 2045800 A1 20090408

DOCDB simple family (application)

EP 07117956 A 20071005