×

Old modified smart card or similar apparatus having a remote inspection capability

  • US 5,737,423 A
  • Filed: 08/23/1995
  • Issued: 04/07/1998
  • Est. Priority Date: 08/23/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for inspecting an apparatus, said apparatus having a capability to decode and respond to a response request message transmitted to said apparatus by generating and displaying a secure output message, and also having an automatic deactivation capability, said method comprising the steps of:

  • a) transmitting said response request message addressed to said apparatus, said secure output message prompting an authorized possessor of said apparatus to send a response reflecting said secure output message to an originator of said response request message;

    b) if a message reflecting said secure output message is not received before the occurrence of a predetermined event, automatically controlling said apparatus to deactivate; and

    c. if said message reflecting said secure output message is received before the occurrence of said predetermined event, transmitting a response confirmation message addressed to said apparatus and thereafter ignoring occurrence of said predetermined event.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×