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:
Feb. 20, 2007
Filed:
Dec. 03, 2004
Jong Kee Kwon, Daejeon, KR;
Mun Yang Park, Daejeon, KR;
Jong Dae Kim, Daejeon, KR;
Won Chul Song, Daejeon, KR;
Jong Kee Kwon, Daejeon, KR;
Mun Yang Park, Daejeon, KR;
Jong Dae Kim, Daejeon, KR;
Won Chul Song, Daejeon, KR;
Abstract
Provided is a CMOS exponential function generating circuit capable of compensating for the exponential function characteristic according to temperature variations. The exponential function generating circuit includes an voltage scaler scaling the value of an external gain control voltage signal, an exponential function generating unit generating exponential function current and voltage in response to a signal output from the voltage scaler, a reference voltage generator providing a reference voltage to the exponential function generating unit, and a temperature compensator compensating for the exponential function characteristic according to temperature variations.