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:
Nov. 18, 2014
Filed:
Dec. 12, 2012
Panasonic Corporation, Osaka, JP;
Ryoji Suzuki, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
There is provided a voice emphasis device with which voice clarity can be improved. This voice emphasis device comprises a correlation component removal filter circuit that removes a correlation component from a voice signal produced at a specific sampling frequency, a multiplication circuit that produces an extracted signal by multiplying a specific gain coefficient by the output of the correlation component removal filter circuit, and an arithmetic circuit that adds or subtracts the extracted signal to or from the voice signal. The correlation component removal filter circuit is a lattice-type filter circuit that combines a feedforward filter and a feedback filter. The feedforward filter and the feedback filter update the filter coefficient at the specific sampling frequency based on the formula k=k+α×f/b.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile