EP 2355094 B1 20170412 - Sub-band processing complexity reduction
Title (en)
Sub-band processing complexity reduction
Title (de)
Subband zur Verarbeitung der Komplexitätsverringerung
Title (fr)
Réduction de la complexité de traitement de sous-bande
Publication
Application
Priority
US 69653310 A 20100129
Abstract (en)
[origin: EP2355094A1] A sub-band processing system that reduces computational complexity and memory requirements includes a processor and a local or distributed memory. Logic stored in the memory partitions a frequency spectrum of bins into a smaller number of sub-bands. The logic enables a lossy compression by designating a magnitude and a designated or derived phase of each bin in the frequency spectrum as representative. The logic renders a lossless compression by decompressing the lossy compressed data and providing lost data based on original spectral relationships contained within the frequency spectrum.
IPC 8 full level
G10L 19/02 (2013.01); G10L 19/00 (2013.01); G10L 25/18 (2013.01); G10L 21/0208 (2013.01)
CPC (source: EP)
G10L 19/0204 (2013.01); G10L 19/0212 (2013.01); G10L 25/18 (2013.01); G10L 2021/02082 (2013.01)
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
DOCDB simple family (publication)
EP 2355094 A1 20110810; EP 2355094 B1 20170412; CA 2729707 A1 20110729; CA 2729707 C 20140401; EP 2755205 A1 20140716; EP 2755205 B1 20191211
DOCDB simple family (application)
EP 11151856 A 20110124; CA 2729707 A 20110127; EP 14157074 A 20110124