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:
Feb. 17, 2004
Filed:
Apr. 23, 2001
Applicant:
Inventors:
Robert S. Hayes, Lawndale, CA (US);
Gregory S. Um, Torrance, CA (US);
Assignee:
Sentronics Corporation, Torrance, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 ;
U.S. Cl.
CPC ...
G06K 9/00 ;
Abstract
A low cost capacitive fingerprint sensor which can be fabricated on various substrates, such as large glass or plastic substrates. The sensor is made by depositing and patterning alternate layers of conductive and insulation materials. A pixel of the sensor is comprised of a pick up pad and a plurality of voltage electrodes symmetrically placed around the pick up pad. The symmetry is such that only when a finger surface ridge is present, the pick up pad registers a signal.
Hayes, Robert. (2004). Capacitive circuit array for fingerprint sensing (U.S. Patent No. 6694269). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6694269
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile