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. 26, 2007
Filed:
Aug. 22, 2002
Takeshi Fujita, Takatsuki, JP;
Tomoko Sogabe, Yawata, JP;
Takeshi Fujita, Takatsuki, JP;
Tomoko Sogabe, Yawata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An audio processing unit that provides a high-sound-quality reproduction even when a band property of an input encoded signal drops at or below a Nyquist frequency. The audio processing unit has a band-variable bandpass filtera band determining sectionfor determining a passband of the band-variable bandpass filter with respect to a band extension component from an extended band generating sectionby using decoding information from a decode-processing sectionas a band determination information; and a bandpass filter controllerfor controlling the passband of the band-variable bandpass filter in accordance with an indication from the band determining section.