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.:

US 7603567 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 13, 2009

Filed:

Feb. 18, 2004
Applicant:

Hirofumi Kanai, Fukaya, JP;

Inventor:

Hirofumi Kanai, Fukaya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/38 (2006.01); H04L 9/16 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An information processing system has a power supply section which detects a predetermined potential applied to a USB terminal and supplying the potential as a source potential, an information detection section which detects the predetermined information supplied to the USB terminal, and a processing section which executes, subsequent to the detection of the predetermined potential, the encryption process or the decryption process in accordance with at least the operating information supplied from the operation key arranged on the body and in accordance with the predetermined information supplied to the USB terminal after detection of the predetermined information. The recording and reproducing operation can be performed with the operating key on the body with power supplied only from the USB terminal.


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