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. 30, 2015
Filed:
Sep. 14, 2012
Seok Ju Yun, Daejeon, KR;
Young-deuk Jeon, Daejeon, KR;
Tae Moon Roh, Daejeon, KR;
Jong-kee Kwon, Daejeon, KR;
Woo Seok Yang, Daejeon, KR;
Jongdae Kim, Daejeon, KR;
Seok Ju Yun, Daejeon, KR;
Young-deuk Jeon, Daejeon, KR;
Tae Moon Roh, Daejeon, KR;
Jong-Kee Kwon, Daejeon, KR;
Woo Seok Yang, Daejeon, KR;
Jongdae Kim, Daejeon, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
The inventive concept discloses a new temperature sensor structure based on oscillator which is insensitive to a process change and improves an error rate of temperature output. The temperature sensor based on oscillator compares an oscillator circuit structure insensitive to a temperature change with an oscillator circuit structure having a frequency change in proportion to a temperature change to output a relative difference between the two oscillator circuit structures and thereby it is compensated itself. In the temperature sensor based on oscillator, a problem of performance reduction due to an external environment and a process deviation of temperature sensor is improved and an output distortion and temperature nonlinearity are effectively improved. Thus, since the temperature sensor based on oscillator has a structure of high performance, low power and low cost, it can be variously used in a detection equipment of temperature environment.