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:
Sep. 13, 2005
Filed:
Jul. 15, 2003
Jong-hun Lee, Suwon-shi, KR;
Tae-sung Park, Suwon-shi, KR;
Chan-youl Kim, Puchon-shi, KR;
Sung-il Sohn, Seoul, KR;
Jong-Hun Lee, Suwon-shi, KR;
Tae-Sung Park, Suwon-shi, KR;
Chan-Youl Kim, Puchon-shi, KR;
Sung-Il Sohn, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A temperature compensation device for an optical communication device or the like is constructed so that an error value, which is the difference between the current temperature and a reference temperature, is subjected to digital processing in a temperature comparison unit. A digital error voltage value is calculated and digital PID control is performed instead of analog PID which requires electric components such as a power op-amp, a resistor (R), and a capacitor (C). According to this construction it is possible to reduce the number of electric parts. It is also possible to accept various types of temperature sensors while using only one PCB regardless of the types of temperature sensors utilized.