EP 2693431 A1 20140205 - Data compression apparatus, data compression program, data compression system, data compression method, data decompression apparatus, data compression/decompression apparatus, and data structure of compressed data
Title (en)
Data compression apparatus, data compression program, data compression system, data compression method, data decompression apparatus, data compression/decompression apparatus, and data structure of compressed data
Title (de)
Datenkomprimierungsvorrichtung, Datenkomprimierungsprogramm, Datenkomprimierungssystem, Datenkomprimierungsverfahren, Datendekomprimierungsvorrichtung, Datenkomprimierungs-/Dekomprimierungsvorrichtung und Datenstruktur von komprimierten Daten
Title (fr)
Appareil, programme et procédé de compression de données, appareil de décompression de données, appareil de compression/décompression de données et structure de données de données compressées
Publication
Application
Priority
- JP 2012170963 A 20120801
- JP 2012253144 A 20121119
- JP 2012253145 A 20121119
- JP 2012261932 A 20121130
Abstract (en)
A data compression/decompression apparatus, for example, acquires sampling data obtained by sampling an audio signal with a predetermined period, and converts the sampling data into frequency domain data. The data compression/decompression apparatus divides a data sequence of the converted frequency domain data into a plurality of blocks such that the number of pieces of data included in each block is variable, and compresses each block.
IPC 8 full level
G10L 19/02 (2013.01)
CPC (source: EP)
G10L 19/02 (2013.01)
Citation (applicant)
JP 2008107615 A 20080508 - YAMAHA CORP
Citation (search report)
- [X] US 2007016412 A1 20070118 - MEHROTRA SANJEEV [US], et al
- [X] US 2011035227 A1 20110210 - LEE SANG-HOON [KR], et al
- [X] WO 2009048239 A2 20090416 - KOREA ELECTRONICS TELECOMM [KR], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 13174618 A 20130702