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. 14, 2001

Filed:

Mar. 31, 2000
Applicant:
Inventors:

Jang Hoon Yoo, Seoul, KR;

Chul Woo Lee, Seoul, KR;

Chong Sam Chung, Sungnam, KR;

Pyong Yong Seong, Seoul, KR;

Kun Ho Cho, Suwon, KR;

Hyun Seob Choi, Suwon, KR;

Yong Hoon Lee, Suwon, KR;

Tae Kyung Kim, Suwon, KR;

No Kyong Park, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/12 ;
U.S. Cl.
CPC ...
G11B 7/12 ;
Abstract

A recording/reproducing apparatus includes an optical pickup device having an optical phase plate which is compatible with optical recording mediums having different thicknesses, and an optical signal processing device processes information read from the optical recording mediums and processes information to be recorded thereon using the optical pickup device.


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