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:
Jun. 21, 2005
Filed:
Mar. 25, 2003
Hee-chan Doh, Suwon, KR;
Hyeon-cheol Ki, Seoul, KR;
Yun-je OH, Yongin, KR;
Gil-yong Park, Suwon, KR;
Tae-sung Park, Suwon, KR;
Shin-hee Won, Seoul, KR;
Hee-Chan Doh, Suwon, KR;
Hyeon-Cheol Ki, Seoul, KR;
Yun-Je Oh, Yongin, KR;
Gil-Yong Park, Suwon, KR;
Tae-Sung Park, Suwon, KR;
Shin-Hee Won, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An automatic threshold control device for a burst mode optical receiver is disclosed. The receiver includes a converter that converts a burst mode signal into a voltage signal and an automatic gain controller for automatically controlling a gain of the converter, independently generating a reset signal and applying it to the automatic threshold control device. The automatic threshold control device is adapted to detect a voltage level of an output signal from the converter. The device includes a peak detector that detects a peak level of the output signal from the converter in response to the reset signal, a bottom level detector that detects a bottom level of the output signal from the converter in response to the reset signal, a pair of resistors having their one sides connected respectively to the peak detector and bottom level detector and their other sides connected to each other, the resistors generating a reference voltage on the basis of voltages of the peak level and bottom level, and a capacitor for storing the reference voltage.