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:
Oct. 27, 2015
Filed:
Sep. 13, 2012
Byeong Hak JO, Gyunggi-do, KR;
Tah Joon Park, Gyunggi-do, KR;
Kyung Hee Hong, Gyunggi-do, KR;
Moon Suk Jeong, Gyunggi-do, KR;
Yong IL Kwon, Gyunggi-do, KR;
Byeong Hak Jo, Gyunggi-do, KR;
Tah Joon Park, Gyunggi-do, KR;
Kyung Hee Hong, Gyunggi-do, KR;
Moon Suk Jeong, Gyunggi-do, KR;
Yong Il Kwon, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
There is provided a capacitance sensing apparatus including: a driving circuit unit applying a driving signal to a first capacitor; a first integrating circuit unit including a second capacitor charged by a change in capacitance generated in the first capacitor based on the driving signal to generate a first output voltage; and a second integrating circuit unit including a third capacitor charged by a change in capacitance generated in the second capacitor to generate a second output voltage, wherein a level of the second output voltage is changed at least twice during a single period of the driving signal applied to the first capacitor.