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:
Jul. 31, 2007
Filed:
Feb. 26, 2004
Chang-hoon Baek, Daegu Metropolitan, KR;
Chul-ho Jeon, Suwon-si, KR;
Seung-man Han, Suwon-si, KR;
Sung-du Kwon, Seoul, KR;
Chang-hoon Baek, Daegu Metropolitan, KR;
Chul-ho Jeon, Suwon-si, KR;
Seung-man Han, Suwon-si, KR;
Sung-du Kwon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
An optical signal converter and a method or controlling an amplification gain according to a rotating speed of an optical disc. An optical signal detector detects an optical signal reflected from an optical disc in a reproduction mode and converts the detected optical signal into an electrical signal. A gain control signal generator generates a gain control signal when a voltage level of a driving signal used to drive the optical disc exceeds a maximum output voltage of the optical signal converter. A gain switcher selects an amplification gain of the optical signal converter in response to the gain control signal and an external control signal. A signal amplifier amplifies a signal output from the optical signal detector in response to an output signal of the gain switcher.