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, 2011
Filed:
Oct. 27, 2008
Hitoshi Akiyama, Hamamatsu, JP;
Hitoshi Akiyama, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
Signals in two different bands (band components) are extracted from an input signal by an HPF and a BPF, and frequency-shift processing is performed by an MPY. Further, in order to adjust levels of an interface between the band components of shifted frequency to a high-frequency band side and the input signal, band components with which the input signal is adjacent to the high-frequency band extension components are extracted by an HPF. Then, a gain is controlled on the basis of the output values from the HPF and the HPF so as to reduce a difference between the components of shifted frequencies and the level of the input signal by the level correction coefficient calculating unit and the MPY. Then, the shifted components are added to the high-frequency band of the input signal by an ADDER.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile