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:
Jul. 03, 2012
Filed:
Aug. 23, 2011
Yuli You, San Diego, CA (US);
Yuli You, San Diego, CA (US);
Digital Rise Technology Co., Ltd., Guangzhou, Guangdong Province, CN;
Abstract
Provided are, among other things, systems, methods and techniques for quantizing a joint-channel-encoded audio signal, e.g., by: identifying a target quantization unit for reduction of quantization step size based on quantization errors; determining whether the target quantization unit has been jointly sum/difference encoded with another quantization unit; if the target quantization unit has been jointly sum/difference encoded with another quantization unit, then (i) designating the sum or difference channel quantization unit as a target S/D quantization unit in based on which has a greater quantization error and (ii) re-quantizing the target S/D channel quantization using a decreased quantization step size; recalculating the quantization error for the target quantization unit; and repeating the process until a specified criterion is satisfied.