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. 07, 2004
Filed:
Oct. 23, 2002
Nobuaki Kohinata, Yokohama, JP;
Jun Maeoka, Kawasaki, JP;
Shinichi Obata, Fujisawa, JP;
Hiroshi Shimizu, Yokohama, JP;
Masahiko Saito, Mito, JP;
Atsushi Ogino, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A cellular phone which is easy to use featuring a sufficient degree of safety preventing unauthorized use by conducting a minimum degree of required authentication operation which is not perceived by the user. As the user holds the cellular phone by hand, the control unit issues an instruction to temperature obtaining units to start detecting the temperature. The temperature obtaining units measure the temperature at regular intervals, and successively transfer the obtained temperature data to a temperature comparator unit The temperature comparator unit judges whether the temperature data obtained by the temperature obtaining units are lying within a predetermined condition, and issues an instruction to biodata obtaining units to obtain fingerprint data of the user depending upon the result of judgement. The biodata obtaining units obtain the fingerprint data of the user and transfer the obtained fingerprint data to a biodata authentication unit The biodata authentication unit compares the obtained fingerprint data with the fingerprint data of the owner stored in a biodata storage unit and judges whether the user is the proper user.