Global Patent Index - EP 0910927 B1

EP 0910927 B1 2000-01-12 - PROCESS FOR CODING AND DECODING STEREOPHONIC SPECTRAL VALUES

Title (en)

PROCESS FOR CODING AND DECODING STEREOPHONIC SPECTRAL VALUES

Title (de)

VERFAHREN ZUM CODIEREN UND DECODIEREN VON STEREOAUDIOSPEKTRALWERTEN

Title (fr)

PROCEDE DE CODAGE ET DE DECODAGE DE VALEURS SPECTRALES STEREOPHONIQUES

Publication

EP 0910927 B1 (DE)

Application

EP 97925036 A

Priority

  • DE 19628292 A
  • EP 9702874 W

Abstract (en)

[origin: DE19628292A1] In a process for coding stereophonic spectral values, the stereophonic spectral values are first grouped into scaling factor bands (28) to which are associated scaling factors. Sections are then formed which consist of at least one scaling factor band (28). The spectral values are coded in at least one section with a coding table associated to the section among a plurality of coding tables associated each to a coding table number. The number of the used coding table is transmitted together with the coded stereophonic spectral values as supplementary information. At least one additional coding table number is provided which does not relate to a coding table but gives information relevant to the section to which the coding table is associated. A process for decoding stereophonic spectral values which have been partially coded by an intensity stereo process and contain supplementary information uses the relevant information given by the additional coding table numbers to undo the coding of the stereophonic spectral values.

IPC 1-7 (main, further and additional classification)

H04S 1/00

IPC 8 full level (invention and additional information)

G10L 19/00 (2006.01); G10L 19/02 (2006.01); H04H 20/88 (2008.01); H04S 1/00 (2006.01)

CPC (invention and additional information)

H04S 1/007 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

DE 19628292 A1 19980115; DE 19628292 B4 20070802; AT 188832 T 20000115; AU 3031897 A 19980209; AU 712196 B2 19991028; CA 2260090 A1 19980122; CA 2260090 C 20001017; DE 59701014 D1 20000217; DK 0910927 T3 20000508; EP 0910927 A1 19990428; EP 0910927 B1 20000112; ES 2143868 T3 20000516; GR 3032444 T3 20000531; JP 2000505266 A 20000425; JP 3622982 B2 20050223; KR 20000022435 A 20000425; NO 317570 B1 20041115; NO 990106 A 19990310; NO 990106 D0 19990111; PT 910927 E 20000428; US 6771777 B1 20040803; WO 9803036 A1 19980122