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. 08, 2011
Filed:
Nov. 06, 2006
Eisaku Kawano, Saitama, JP;
Masahiro Kato, Saitama, JP;
Masahiro Miura, Saitama, JP;
Tohru Kanegae, Saitama, JP;
Kyusho Omori, Saitama, JP;
Tatsuhiro Yone, Saitama, JP;
Eisaku Kawano, Saitama, JP;
Masahiro Kato, Saitama, JP;
Masahiro Miura, Saitama, JP;
Tohru Kanegae, Saitama, JP;
Kyusho Omori, Saitama, JP;
Tatsuhiro Yone, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An information reproducing apparatus () is provided with: a detecting device () for irradiating an information. recording medium with laser light (LB) and detecting reflected light as a detection signal, the information recording medium including a first recording layer (L0) and a second recording layer (L1); a high pass filter () for performing a filtering process on the detected detection signal; and a reproducing device () for performing a reproduction process of the filtered detection signal to reproduce the data, the high pass filter attenuates a fluctuation component of the detection signal, caused by a relative eccentricity between the first recording layer and the second recording layer, by a first attenuation amount (34dB) or more.