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. 26, 2013
Filed:
Jun. 28, 2010
Applicants:
Hung-wei Wu, Taipei County, TW;
Chiung-fu Chen, Peng Hu County, TW;
Shao-sheng Yang, Kao Hsiung, TW;
Chih-yu Chang, Hsin Chu, TW;
Inventors:
Hung-Wei Wu, Taipei County, TW;
Chiung-Fu Chen, Peng Hu County, TW;
Shao-Sheng Yang, Kao Hsiung, TW;
Chih-Yu Chang, Hsin Chu, TW;
Assignee:
Silicon Integrated Systems Corp., Hsin Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dynamic filtering device includes a variation detector, a coefficient generator and a filter. The cut-off frequency of the filter is dynamically adjusted according to variations of an input signal. A higher signal-to-noise ratio is obtained when a finger moves in slow motion and its response time is reduced when the finger moves in fast motion, therefore improving the response time and the noise immunity of the filter.