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, 2002
Filed:
Oct. 25, 2000
Toshio Imai, Iruma, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
Bias charge is injected from a bias power supply line into a detecting electrode constituting an electrostatic capacitance element between an object to be detected to accumulate charge in accordance with its electrostatic capacitance, and when the charge is distributed between the electrostatic capacitance element and a capacitance element which has been reset to a reset potential, a holding voltage of the capacitance element changes in accordance with the amount of charges accumulated in the detecting electrode , and thus a signal is outputted regarding the change in holding voltage as an amount of change in gate potential of a source follower amplifier element , thereby detecting the capacitance of the electrostatic capacitance element between the object to be detected and the detecting electrode
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile