The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
May. 24, 2013
Applicant:
Qnx Software Systems Limited, Kanata, CA;
Inventor:
Shreyas Paranjpe, Vancouver, CA;
Assignee:
2236008 Ontario Inc., Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2013.01); H03K 5/00 (2006.01); G10L 19/02 (2013.01); G10L 25/18 (2013.01);
U.S. Cl.
CPC ...
H03K 5/00 (2013.01); G10L 19/0204 (2013.01); G10L 21/00 (2013.01); G10L 25/18 (2013.01);
Abstract
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.