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:
Mar. 13, 2012
Filed:
May. 03, 2011
Lei Miao, Shenzhen, CN;
Zexin Liu, Shenzhen, CN;
Longyin Chen, Shenzhen, CN;
Chen HU, Shenzhen, CN;
Wei Xiao, Shenzhen, CN;
Herve Marcel Taddei, Voorburg, NL;
Qing Zhang, Shenzhen, CN;
Lei Miao, Shenzhen, CN;
Zexin Liu, Shenzhen, CN;
Longyin Chen, Shenzhen, CN;
Chen Hu, Shenzhen, CN;
Wei Xiao, Shenzhen, CN;
Herve Marcel Taddei, Voorburg, NL;
Qing Zhang, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal includes performing a classification decision process on high frequency signals of input signals, adaptively encoding the high frequency signals according to the result of the classification decision process, and outputting a bitstream including codes of low frequency signals of the input signals, adaptive codes of the high frequency signals, and the result of the classification decision process. The classification decision process is performed on the high frequency signals, and adaptive encoding or adaptive decoding is performed according to the result of the classification decision process, so the quality of voice and audio output signals is improved.