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.:

US 7920446 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 05, 2011

Filed:

Dec. 07, 2009
Applicants:

Ainobu Yoshimoto, Milpitas, CA (US);

Hung Phi Dang, Santa Clara, CA (US);

Inventors:

Ainobu Yoshimoto, Milpitas, CA (US);

Hung Phi Dang, Santa Clara, CA (US);

Assignee:

LSI Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus includes a first circuit and a second circuit. The first circuit may be configured to generate status signals and an error signal in response to accessing a storage medium. The error signal provides a first value based on an accuracy of accessing the storage medium. The second circuit may be configured to offset the first value of the error signal to a second value to increase the accuracy of accessing said storage medium. The status signals include one or more of a data signal and a differential signal. In a first mode, an offset signal is generated in response to the data signal. In a second mode, the offset signal is generated in response to the differential signal.


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Yoshimoto, Ainobu. (2011). Optimizing focus point for optical disc (U.S. Patent No. 7920446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7920446

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