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:
Apr. 18, 2006
Filed:
Aug. 18, 2003
Tae-sung Park, Suwon-shi, KR;
Chan-youl Kim, Puchon-shi, KR;
Jong-hun Lee, Suwon-shi, KR;
Sung-il Sohn, Seoul, KR;
Tae-Sung Park, Suwon-shi, KR;
Chan-Youl Kim, Puchon-shi, KR;
Jong-Hun Lee, Suwon-shi, KR;
Sung-Il Sohn, Seoul, KR;
Samsung Electronics Co Ltd, Suwon-si, KR;
Abstract
Disclosed is a temperature controller and method for maintaining an optical-communication device at a constant temperature regardless of ambient temperature variation. The temperature controller includes: a temperature sensor for detecting the current temperature of a device which is to be temperature-controlled; and, a temperature-comparison section for comparing the current temperature detected by the temperature sensor with the predetermined temperature that is a proper operating temperature for the device, wherein the temperature-comparison section further includes: a differential amplifier for outputting the difference between signals which are inputted respectively into anode and cathode terminals; and first, second, third, and fourth resistance pads which are selectively short-circuited with one another according to the temperature-sensor type so as to vary the polarity of the signals inputted into the differential amplifier so that PTC and NTC sensors can be used at the same time in a single PCB regardless of the temperature-sensor type.