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:
Jun. 06, 2006
Filed:
Jul. 30, 2003
Mineo Tsushima, Osaka, JP;
Naoya Tanaka, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Kok Seng Chong, Singapore, SG;
Kim Hann Kuah, Singapore, SG;
Sua Hong Neo, Singapore, SG;
Toshiyuki Nomura, Tokyo, JP;
Osamu Shimada, Tokyo, JP;
Yuichiro Takamizawa, Tokyo, JP;
Masahiro Serizawa, Tokyo, JP;
Mineo Tsushima, Osaka, JP;
Naoya Tanaka, Osaka, JP;
Takeshi Norimatsu, Hyogo, JP;
Kok Seng Chong, Singapore, SG;
Kim Hann Kuah, Singapore, SG;
Sua Hong Neo, Singapore, SG;
Toshiyuki Nomura, Tokyo, JP;
Osamu Shimada, Tokyo, JP;
Yuichiro Takamizawa, Tokyo, JP;
Masahiro Serizawa, Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
NEC Corporation, Tokyo, JP;
Abstract
A wideband, high quality audio signal is decoded with few calculations at a low bitrate. Unwanted spectrum components accompanying sinusoidal signal injection by a synthesis subband filter built with real-value operations are suppressed by inserting a suppression signal to subbands adjacent to the subband to which the sine wave is injected. This makes it possible to inject a desired sinusoid with few calculations.