Passive remote programmer for induction type RFID readers

• US 6,285,295 B1
• Filed: 12/14/1998
• Issued: 09/04/2001
• Est. Priority Date: 12/14/1998
• Status: Expired due to Term

• Current Assignee: Soundcraft Incorporated
• Original Assignee: Soundcraft Incorporated
• Inventors: Casden, Martin S.
• Primary Examiner(s): ZIMMERMAN, BRIAN A
• Application Number:
  US09/212,583
• Time in Patent Office: 995 Days
• Field of Search: 342/42, 340/572.1, 340/10.3, 340/825.69, 340/825.31, 340/825.22, 341/176
• US Class Current: 340/12.24
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10019 resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. collision between the communication channels used by wireless communication devices, where the solution is not particularly adapted for RFIDs or the like, H04W74/08

Abstract

A hand held passive remote programmer for Radio Frequency Identification readers has a keyboard for turning on any one of several RFID transponder tags in the programmer. Each transponder of the programmer is recognizable by the RFID reader as a program instruction which modifies the operation of the reader, rather than one of a second population of transponder tags which are recognized simply by proximity to the reader, such as tags provided in key cards. In a broader sense, the invention provides a method for wireless linkage of a keypad to an induction type RFID reader.

Claims

1. A passive remote programmer system for an induction type RFID reader having RF sensing means operatively connected to a microprocessor for reading tag identification data of RFID transponder tags powered by a sensing field of the reader and for verifying said identification data against stored identification data thereby to recognize the presence of authorized tags, said programmer system comprising:

a hand held programmer unit housing an antenna, a plurality of dedicated RFID transponder tags each having a unique tag code, and a keypad having a plurality of keys each selectively operable for connecting a corresponding one of said dedicated RFID transponder tags to said antenna thereby to power the selected tag by induction in the said sensing field and enable the unique tag code of the selected tag to be read by the said RFID reader; and

program means operative in cooperation with said microprocessor for executing a first action in response to recognition of tags presented through mere proximity to the reader in said sensing field, and a second action different from said first action in response to recognition of a said dedicated RFID transponder tag powered by operation of a key on said keypad, such that response of said RFID reader to said tags presented through mere proximity may be modified by operation of said keys on said keypad.

2. The passive programmer of claim 1 wherein said program means is also operative for interpreting the recognition of each said unique tag code as a new program instruction for execution by said microprocessor.

3. The passive programmer of claim 2 wherein said new program instruction comprises data for modifying a transponder tag data base accessible to said microprocessor for use in executing decision making algorithms under control of said program means.

4. The passive programmer of claim 1 wherein said keys are normally open switches.

5. The passive remote programmer system of claim 1 wherein said keys of said keypad are manually operated keys.

6. 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;

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

program means executable by microprocessor means in the RFID for recognizing said unique identification code of each tag connected to the keypad as representative of actuation of a particular key on said keypad and not indicative of the presentation of a key tag by mere proximity to the reader.

7. The method of claim 6 further comprising the step of executing program means by the reader associated with actuation of said particular key.

8. The method of claim 7 wherein said step of executing program means modifies the response of said reader to key tags presented by mere proximity to the reader.

9. An RFID system comprising:

an RFID reader having RF sensing means operatively connected to a microprocessor for reading RFID tags actuated by mere proximity to said RFID reader in a sensing field of said reader; and

a programmer unit comprising an antenna, a plurality of dedicated RFID transponder tags each having a unique tag code, and a keypad having a plurality of keys each operable for connecting a corresponding one of said dedicated RFID transponder tags to said antenna thereby to power the selected dedicated RFID transponder tag by induction in said sensing field and enable reading of the unique tag code of the selected tag by the said RFID reader;

said microprocessor being programmed to respond to said reading of a said unique tag code in a manner different from its response to said reading of RFID tags actuated by mere proximity to the reader.

10. The RFID reader system of claim 9 wherein said programmer unit comprises a portable housing containing said antenna and said dedicated RFID transponder tags, and said keypad is mounted on said housing.

11. The RFID reader system of claims 9 wherein said microprocessor is programmed for executing an access control function in response to said reading of RFID tags actuated by mere proximity to the reader and to modify programming of said reader in response to said reading of a said unique tag code.

12. The RFID reader of claim 11 wherein the programming modified in response to said reading of a said unique tag code operates to modify the response of the reader to said reading of RFID tags actuated by mere proximity to the reader.