Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 31, 2009
Patent Application Number
10912997
Date Filed
August 6, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method and system for secure communications in a mobile commerce system having a pre-defined communications protocol. The method and system are backward compatible, providing reader configured to distinguish between a first type of transponder using an unencrypted protocol and a second type of transponder using an encrypted protocol. The reader determines the type of transponder and alters its communications protocol accordingly. The encrypted protocol provides for encrypted communications within the constraints of the existing pre-defined communications protocol.
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