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:
Feb. 10, 1998
Filed:
Sep. 19, 1996
Yuji Yamada, Tokyo, JP;
Kiyofumi Inanaga, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A digital filter is composed of an FIR filter with a finite tap length and a feedback section. An apparatus for reproducing sound is arranged to use the digital filter. In the feedback section, an output of one of a plurality of delaying units included in the FIR filter is attenuated through the effect of a coefficient multiplier. The attenuated output is fed back to an adder located between adjacent delaying units arranged before the one delaying unit. The feedback section repeats the feedback operation to generate an infinitely continuing impulse response.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile