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. 15, 2004
Filed:
Jun. 30, 2000
Applicant:
Inventors:
Kazutaka Abe, Kadoma, JP;
Masaharu Matsumoto, Katano, JP;
Akihisa Kawamura, Hirakata, JP;
Masatoshi Shimbo, Mino, JP;
Naoki Ejima, Hirakata, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/09 ;
U.S. Cl.
CPC ...
G11B 5/09 ;
Abstract
When, through a multi-speaker of a DVD audio system, signals are recorded/reproduced using a sampling frequency different for every channel, the quantity of calculation of a filter circuit is reduced. Up-sampling information about whether or not the sampling is carried out before the up-sampling by up-sampling means ( ) is acquired by up-sampling information detecting means ( ). The signal up-sampled is filtered by a halfband filter circuit ( ), subjected to loss-less compression, and recorded on a recording medium ( ).