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Wireless data input to RFID reader

  • US 6,828,902 B2
  • Filed: 08/31/2001
  • Issued: 12/07/2004
  • Est. Priority Date: 12/14/1998
  • Status: Expired due to Term
First Claim
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1. A method for wireless linkage of a keypad to an induction type RFID reader comprising the steps of:

  • providing a keypad having a plurality of manually operable switch keys;

    providing a plurality of individually addressable RFID transponder tags;

    connecting each of said switch keys to a plurality of said RFID transponder tag and an antenna such that actuating each of said switch keys places a corresponding permutation of said transponder tags in operative connection with said antenna for inductively transmitting a unique set of tag identification codes of said tags to the RFID reader; and

    program means executable by microprocessor means in the RFID for recognizing said unique set of tag identification codes as representative of actuation of a particular key on said keypad.

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