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:
Jun. 28, 2005
Filed:
Feb. 18, 1999
Satoshi Hoshino, Tokyo, JP;
Satoshi Hoshino, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
When a contact surfaceof a finger print input sectionis pushed down by a fingertip and the projected portionfaces the recessed portion, the projected portionslides into the recessed portionso that the contact surfaceis put in a locked state. At this time, a switchis turned on and sends a signal to a fingerprint detecting portion. Responsive to the signal, the detecting portionscans the fingertip on the contact surfaceto be converted into a sequence of electric signal and to be stored into a memory. The fingerprint detecting portioncompares a fingerprint with the fingerprint data signal stored in the memoryto identify a fingerprint. With this structure, the pressure imposed by the fingertip onto the fingerprint input sectionis kept constant during detection of the fingerprint.