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:
Aug. 25, 2015
Filed:
Oct. 05, 2011
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Haishan Zhong, Singapore, SG;
Dan Zhao, Singapore, SG;
Kok Seng Chong, Singapore, SG;
Tomokazu Ishikawa, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Haishan Zhong, Singapore, SG;
Dan Zhao, Singapore, SG;
Kok Seng Chong, Singapore, SG;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A coding device includes: a pitch contour detection unit which detects a pitch contour of an input audio signal; a dynamic time warping unit which determines the number of pitch nodes based on the pitch contour and generates a first time warping parameter including information indicating the determined number of pitch nodes, a pitch change position, and a pitch change ratio; a first encoder which codes the first time warping parameter; a time warping unit which corrects pitch, using the information obtained from the first time warping parameter, to approximate the pitches of the number of pitch nodes to a predetermined reference value; a second encoder which codes the input audio signal at the corrected pitch; and a multiplexer which multiplexes the coded time warping parameter and the coded audio signal to generate a bitstream.