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. 31, 2017
Filed:
Sep. 02, 2015
Seiko Epson Corporation, Tokyo, JP;
Gakuji Yamamoto, Fujimi, JP;
Seiko Epson Corporation, , JP;
Abstract
A detecting device includes a pyroelectric element that generates charge by a pyroelectric effect in a first detection terminal and a second detection terminal, a chopper amplifier circuit that generates an amplified signal in response to the charge generated in the first detection terminal and the second detection terminal by chopping, and an initialization switch that controls electrical connection between the second detection terminal and a power source for generating an initialized voltage, and the initialization switch is turned on before a start of an amplification operation by the amplifier circuit and is off during the amplification operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile