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. 01, 2016
Filed:
Jun. 14, 2011
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Haishan Zhong, Singapore, SG;
Kok Seng Chong, Singapore, SG;
Huan Zhou, Singapore, SG;
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Haishan Zhong, Singapore, SG;
Kok Seng Chong, Singapore, SG;
Huan Zhou, Singapore, SG;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A new hybrid audio decoder and a new hybrid audio encoder having block switching for speech signals and audio signals are provided. Currently, very low bitrate audio coding methods for speech and audio signals are proposed. These audio coding methods cause very long delays. Generally, in coding an audio signal, an algorithm delay tends to be long to achieve higher frequency resolution. In coding a speech signal, the delay needs to be reduced because the speech signal is used for telecommunication. To balance fine coding quality for speech and audio input signals with very low bitrate, a combination of a low delay filter bank like AAC-ELD and a CELP coding method is provided.