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:
Apr. 21, 2009
Filed:
Sep. 26, 2002
Satoshi Igeta, Kanagawa, JP;
Satoshi Watanabe, Tokyo, JP;
Satoshi Igeta, Kanagawa, JP;
Satoshi Watanabe, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention discloses a server apparatus which can prevent direct reference to information that should be referred to only after a predetermined procedure, and a control method for the apparatus. The server apparatus of this invention analyzes address information contained in an information reference request and checks whether the address information contains system time added by the information server. If the system time is contained, it is compared with the current system time. Only when the difference between them has a predetermined value or less, the address information is determined as valid.