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:
Jul. 17, 2007
Filed:
Apr. 19, 2004
Applicants:
Ji-hun Koo, Yongin-si, KR;
Seong-il Cho, Seoul, KR;
Sang-goog Lee, Anyang-si, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01); G01D 18/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method for enhancing the accuracy of a sensor signal are provided. The apparatus includes: a low-pass filter (LPF) that filters the sensor signal and outputs a low-frequency sensor signal; an operation determination unit that determines whether the sensor is not in operation; a bias estimating unit that estimates bias included in the low frequency sensor signal output from the LPF according to the output of the determination unit; and a subtractor that subtracts the estimated bias from the low frequency sensor signal according to the output of the operation determination unit.