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.

Date of Patent:
Aug. 26, 2008

Filed:

Jan. 20, 2004
Applicants:

Young-pyo Lee, Yongin-si, KR;

Cheol-sung Yeon, Suwon-si, KR;

Hee-dong Kim, Suwon-si, KR;

Hong-kyu Lee, Seoul, KR;

Inventors:

Young-pyo Lee, Yongin-si, KR;

Cheol-sung Yeon, Suwon-si, KR;

Hee-dong Kim, Suwon-si, KR;

Hong-kyu Lee, Seoul, KR;

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

An optical pickup used to record information on and/or reproduce information from an optical recording medium, the optical pickup including an optical module to emit a light beam; and a front photo-detector to monitor power of the light beam; wherein the optical module is coupled to the front photo-detector so that a fixed distance is maintained between the optical module and the front photo-detector.


Find Patent Forward Citations

Loading…