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. 05, 2018
Filed:
Jul. 22, 2016
Prolific Technology Inc., Taipei, TW;
Unisense Technology Co., Ltd, Hsinchu, TW;
Chiung-An Chen, Hsinchu, TW;
Yun-Kuo Lee, Hsinchu, TW;
Chih-Yuan Hung, Hsinchu, TW;
Jia-Chun Huang, Hsinchu, TW;
Yeow-Chin Chen, Hsinchu, TW;
Shu-Fan Wu, Hsinchu, TW;
PROLIFIC TECHNOLOGY INC., Taipei, TW;
UniSense Technology Co., Ltd, Hsinchu, TW;
Abstract
An impedance sensor and an electronic apparatus using the same are provided. The impedance sensor includes an impedance-bridge circuit, a compensation circuit, and a signal processing circuit. The impedance-bridge circuit has an input side and an output side, and configured to generate a first impedance variation in response to a physical pressure. The compensation circuit is coupled to the input side of the impedance-bridge circuit in parallel, and configured to generate a second impedance variation in response to an environment temperature. The signal processing circuit respectively detects the first and the second impedance variations, and accordingly generates a first sensing signal indicating the first impedance variation and a second sensing signal indicating the second impedance variation, so as to compensate a temperature shift part of the first sensing signal by the second sensing signal and accordingly generate a pressure detection signal.