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:
Dec. 09, 2014
Filed:
Apr. 27, 2012
Chih-wei Huang, Taipei, TW;
Chieh-pin Chang, Taipei, TW;
Ja-hao Chen, Taipei, TW;
Chuan-jane Chao, Taipei, TW;
Ying-zong Juang, Taipei, TW;
Shyh-chyi Wong, Taipei, TW;
Yeong-her Wang, Taipei, TW;
Chih-Wei Huang, Taipei, TW;
Chieh-Pin Chang, Taipei, TW;
Ja-Hao Chen, Taipei, TW;
Chuan-Jane Chao, Taipei, TW;
Ying-Zong Juang, Taipei, TW;
Shyh-Chyi Wong, Taipei, TW;
Yeong-Her Wang, Taipei, TW;
RichWave Technology Corp., NeiHu District, Taipei, TW;
Abstract
A sensing apparatus includes an acceleration sensing unit, for measuring an acceleration applied to a proof mass, further including: a proof mass; a carrier signal source, for providing a carrier signal; a capacitive half-bridge, including a first and a second capacitor, wherein each capacitor is coupled to the proof mass and the carrier signal source, one with a positive electrode and the other one with a negative electrode, and the acceleration applied to the proof mass makes the carrier signal flow through the first and the second capacitor so that the first capacitor and the second capacitor respectively generates a first voltage and a second voltage variation which have opposite phases with each other; and an instrumentation amplifier, for receiving and amplifying the first voltage and the second voltage variation, whereby the magnitude and the direction of the acceleration applied to the proof mass is determined.