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:
May. 10, 2011
Filed:
Dec. 29, 2008
Akihiro Yamazaki, Kawasaki, JP;
Akihiro Yamazaki, Kawasaki, JP;
Toshiba Storage Device Corporation, Tokyo, JP;
Abstract
An amplifier amplifies, according to a first gain value, a first input signal acquired by reproducing first information from first areas having the first information recorded therein area by area in order. The amplifier also amplifies, according to a second gain value, a second input signal acquired by reproducing second information pursuant to reproduction of the first information, from a second area adjacent to the first area and that has the second information recorded at a recording level different from that of the first information. When the first input signal is amplified, a first gain value following a change in the first signal is calculated so that the level of the amplified signal becomes constant. When the second input signal is amplified, a second gain value following a change in the first gain value is calculated so that the level of the amplified signal becomes constant.