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:
Aug. 28, 2001
Filed:
Jun. 09, 2000
Method and apparatus for scanning a fingerprint using a linear sensor within a cursor control device
Applicant:
Inventor:
Kenneth Brownlee, Palo Alto, CA (US);
Assignee:
Digital Persona, Inc., Redwood City, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 ; G06K 9/20 ; G06G 5/08 ;
U.S. Cl.
CPC ...
G06K 9/00 ; G06K 9/20 ; G06G 5/08 ;
Abstract
A method and apparatus for scanning a fingerprint using a linear optical sensor. A finger or palm is rolled over a transparent roller. A light source directs light through the roller to illuminate or detect the finger. Light directed through the roller is focused onto a linear imaging device. A full 2D recreation of the fingerprint is assembled from the discrete line-image data collected by the linear array imaging sensor. The apparatus contains a rotation detector to detect rotational movement of the roller.