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:
Jan. 04, 2011
Filed:
Mar. 09, 2006
Masayuki Terada, Yokosuka, JP;
Kensaku Mori, Yokohama, JP;
Kazuhiko Ishii, Yokohama, JP;
Sadayuki Hongo, Yokohama, JP;
Masayuki Terada, Yokosuka, JP;
Kensaku Mori, Yokohama, JP;
Kazuhiko Ishii, Yokohama, JP;
Sadayuki Hongo, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A user device uses, instead of agreement information, only second session information contained in the agreement information, to generate an electronic signature for information containing the session information and information indicating an abort request, and outputs abort request information containing the session information, the information indicating the abort request, and the electronic signature, whereby transmission/reception can be performed without unnecessary information. Similarly, it may be configured to use only the second session information to generate an electronic signature for information containing the session information and information indicating a commitment request, and to output commitment request information containing the electronic signature. Since a third-party device defines a third session state as abort in correspondence to the second session information, it is able to manage states while appropriately discriminating a plurality of concurrent electronic value exchanges.