EP 1693832 B1 20091223 - Method and apparatus for embedding data in encoded voice code
Title (en)
Method and apparatus for embedding data in encoded voice code
Title (de)
Verfahren und Vorrichtung zur Dateneinbettung in einen kodierten Sprachkode
Title (fr)
Procédé et appareil d'insertion de données dans un code vocal codé
Publication
Application
Priority
- EP 03250682 A 20030203
- JP 2002026958 A 20020204
- JP 2003015538 A 20030124
Abstract (en)
[origin: EP1333424A2] When a voice encoding apparatus embeds any data in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus embeds optional data in the encoded voice code by replacing a second element code with the optional data. When a voice decoding apparatus extracts data that has been embedded in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus determines that optional data has been embedded in the second element code portion of the encoded voice code and extracts this embedded data. <IMAGE>
IPC 8 full level
G10L 25/51 (2013.01); G10L 19/00 (2013.01); G10L 19/018 (2013.01)
CPC (source: EP)
G10L 19/018 (2013.01); G10L 19/04 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1333424 A2 20030806; EP 1333424 A3 20050713; EP 1333424 B1 20091209; CN 100514394 C 20090715; CN 1437169 A 20030820; DE 60330413 D1 20100121; DE 60330716 D1 20100204; EP 1693832 A2 20060823; EP 1693832 A3 20070620; EP 1693832 B1 20091223; JP 2003295879 A 20031015; JP 4330346 B2 20090916
DOCDB simple family (application)
EP 03250682 A 20030203; CN 03102322 A 20030130; DE 60330413 T 20030203; DE 60330716 T 20030203; EP 06007029 A 20030203; JP 2003015538 A 20030124