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Low cost secure ID card and system

  • US 7,536,721 B2
  • Filed: 12/01/2006
  • Issued: 05/19/2009
  • Est. Priority Date: 08/28/2000
  • Status: Expired due to Fees
First Claim
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1. A system for controlling the operating state of a lock comprising:

  • a) a lock for controlling physical access to a secure area characterized by a locked state and an unlocked state;

    b) a radio frequency reader, said radio frequency reader being in operative communication with the lock to control the state thereof;

    c) a radio frequency identity card comprising;

    i) an electronic input device located on said radio frequency identity card for entry of secret information by an individual;

    ii) an electronic encoding means for facilitating conversion of said secret information into encoded secret information, said encoded secret information being determinative of authorization of said individual;

    iii) a wireless transmitter operable to transmit information to said radio frequency reader; and

    d) a data processor operable to determine whether said secret information corresponds to said authorization.

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