×

Multi-user card system

  • US 4,837,422 A
  • Filed: 09/08/1987
  • Issued: 06/06/1989
  • Est. Priority Date: 09/08/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. A self-contained multi-user card combination, comprising:

  • cardholder memory means for storing a cardholder personal identification code;

    programmable sub-user memory means for storing a sub-user personal identification code, and a sub-user use condition;

    program means for programming said programmable sub-user memory means with at least one selected sub-user personal identification code and for programming said programmable sub-user memory means with a selected sub-user use condition;

    authenticity checking means for authenticating a personal identification code as corresponding to the stored cardholder personal identification code for permitting access to said program means for programming said sub-user memory means, said authenticity checking means also authenticating a personal identification code as corresponding to a sub-user personal identification code stored in said sub-user memory means, said authenticity checking means upon authenticating a personal identification code as corresponding to the stored cardholder personal identification code, permitting a cardholder to conduct activities with the card combination, said authenticity checking means upon authenticating a personal identification code as corresponding to a sub-user personal identification code stored in said sub-user memory means permitting access to said sub-user memory means for conducting activities within the sub-user use conditions; and

    input means for receiving at least one of a cardholder and sub-user personal identification code.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×