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:
Sep. 10, 2019
Filed:
Nov. 29, 2016
Applicant:
Himax Technologies Limited, Tainan, TW;
Inventors:
Chang-Hui Lin, Tainan, TW;
Yaw-Guang Chang, Tainan, TW;
Assignee:
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01D 5/24 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01D 5/24 (2013.01);
Abstract
A capacitor sensor apparatus and a sensing method thereof are provided. Oscillation signals with different frequencies are provided to a driving circuit and a mixer separately. The mixer mixes the oscillation signal with a lower frequency with a band-pass filtered signal. A band-pass filtering operation for generating the band-pass filtered signal is performed on a sensing signal before the mixer performs the mixing operation.