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. 08, 2014
Filed:
Oct. 18, 2011
Hsiang-yu Lee, New Taipei, TW;
Ping-tsun Lin, Taipei, TW;
Hsiang-Yu Lee, New Taipei, TW;
Ping-Tsun Lin, Taipei, TW;
Invention Element Inc., Taoyuan County, TW;
Abstract
A capacitive touch sensing device by detecting induced electric field includes a differential amplifier, a resistor and a signal judgment circuit. The differential amplifier is electrically connected to a touch sensor. The resistor is electrically connected to a first input end and a second input end of the differential amplifier. The signal judgment circuit is electrically connected to an output end of the differential amplifier. As the touch sensor receives an induced electric field signal, the induced electric field signal is amplified by the differential amplifier and the signal judgment circuit determines whether the amplified induced electric field signal is a touch input.