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. 24, 2004
Filed:
Sep. 21, 2000
Applicant:
Inventor:
Toshiharu Kuwaoka, Kanagawa-ken, JP;
Assignee:
Victor Company of Japan, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/700 ;
U.S. Cl.
CPC ...
G06F 1/700 ;
Abstract
A tone-quality improving portion applies a bit expansion process, an oversampling process, and a bandwidth expansion process to audio information that is decoded by a decoder, and then supplies resultant information to a D/A converter. Accordingly, the audio information can be played back in high tone quality without complicating a configuration of the D/A converter.