TRANSPONDER SYSTEMS

• US 20080174406A1
• Filed: 10/26/2007
• Published: 07/24/2008
• Est. Priority Date: 10/27/2006
• Status: Abandoned Application

• Current Assignee: University of Pittsburgh of The Commonwealth System of Higher Education
• Original Assignee: University of Pittsburgh of The Commonwealth System of Higher Education
• Inventors: Hawrylak, Peter J., Mickle, Marlin H., Mi, Minhong, Mats, Leonid
• Application Number:
  US11/925,127
• Publication Number:
  US 20080174406A1
• Time in Patent Office: Days
• US Class Current: 340/10.1
• CPC Class Codes: G06K 19/041 Constructional details G06K19/06 takes precedence
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card

Abstract

A transponder system that includes at least one transponder apparatus that does not have an antenna and a reader device having a touch probe having one or more probe contacts for enabling the reader device to communicate with the transponder apparatus through a temporary physical interface. Also, a method of communicating with a printed circuit board or an item including a printed circuit board using a reader device wherein a transponder apparatus or a transponder chip is provided on the printed circuit board and wherein conductors from independent circuits of the printed circuit board are used to form an antenna for the transponder apparatus or transponder chip.

Claims

1. A transponder system, comprising:

at least one transponder apparatus, said at least one transponder apparatus including a substrate, one or more leads provided on said substrate, and a chip having one or more contacts provided on said substrate, each of said one or more leads being operatively coupled to a respective one of said one or more contacts, said transponder apparatus not having an antenna; and

a reader device having a touch probe having one or more probe contacts, said reader device being structured to generate one or more RF signals, said one or more probe contacts receiving said one or more RF signals;

wherein one or more of said one or more probe contacts are structured to be temporarily mated with and brought into electrical contact with one or more of said one or more leads of said at least one transponder apparatus to allow at least one of said one or more RF signals to be communicated to said at least one transponder apparatus or to allow one or more transponder signals to be communicated from said transponder apparatus to said reader device.

2. The transponder system according to claim 1, wherein said reader device includes a control system and a radio module, said radio module being adapted to generate said one or more RF signals under the control of said control system, said one or more probe contacts being operatively coupled to said radio module for receiving said one or more RF signals.

3. The transponder system according to claim 1, wherein said reader device further comprises an antenna structured to transmit said one or more RF signals.

4. The transponder system according to claim 1, wherein said reader device further comprises an antenna operatively coupled to said radio module for receiving said one or more RF signals, said antenna being structured to transmit said one or more RF signals.

5. The transponder system according to claim 1, wherein said at least one transponder apparatus comprises a strap, wherein said one or more leads provided on said substrate comprise a first strap lead and a second strap lead, and wherein the one or more probe contacts comprise a first probe contact and a second probe contact.

6. The transponder system according to claim 1, wherein said at least one transponder apparatus is an RFID tag and wherein said reader device is an RFID interrogator.

7. An RF reader device, comprising:

a control system;

a radio module adapted to generate one or more RF signals under the control of said control system; and

a touch probe having one or more probe contacts operatively coupled to said radio module, said one or more probe contacts being structured to receive said one or more RF signals;

wherein one or more of said one or more probe contacts are adapted to be temporarily mated with and brought into electrical contact with one or more leads of a transponder apparatus to allow at least one of said one or more RF signals to be communicated to said transponder apparatus or to allow one or more transponder signals to be communicated from said transponder apparatus to said RF reader device.

8. The RF reader device according to claim 7, wherein said reader device further comprises an antenna operatively coupled to said radio module for receiving said one or more RF signals, said antenna being structured to transmit said one or more RF signals.

9. A method of communicating with a transponder apparatus, comprising:

providing a reader device having a touch probe having one or more probe contacts;

generating one or more RF signals in said reader device and providing said one or more RF signals to said one or more probe contacts; and

bringing one or more leads of said transponder apparatus into electrical contact with said one or more probe contacts to allow at least one of said one or more RF signals to be communicated to said transponder apparatus or to allow one or more transponder signals to be communicated from said transponder apparatus to said reader device.

10. A method of communicating information to and from a printed circuit board or an item including a printed circuit board, said printed circuit board having a plurality of conductors provided on a printed circuit board substrate, the method comprising:

providing a transponder apparatus on said printed circuit board, said transponder apparatus including a transponder substrate, a first lead and a second lead provided on said transponder substrate, and a chip having a plurality of contacts provided on said transponder substrate, said first lead being operatively coupled to a first one of said contacts and said second lead being operatively coupled to a second one of said contacts, said transponder apparatus not having an antenna forming a part thereof;

operatively coupling said first lead to a first one of said conductors and said second lead to a second one of said conductors, said first one of said conductors and said second one of said conductors each being from independent circuits provided on said printed circuit board, wherein said first one of said conductors and said second one of said conductors function as an antenna for said transponder apparatus;

transmitting one or more first RF signals from a reader device to said transponder apparatus over an air interface through said first one of said conductors and said second one of said conductors functioning as an antenna; and

transmitting one or more second RF signals from said transponder apparatus to said reader device over said air interface through said first one of said conductors and said second one of said conductors functioning as an antenna.

11. The method according to claim 10, wherein said transponder apparatus is a strap.

12. The method according to claim 10, wherein said transponder apparatus includes energy harvesting circuitry, on-board electronic circuitry, and RF transmitter circuitry, and wherein the method further comprises receiving at least a portion of said one or more first RF signals in said energy harvesting circuitry, said energy harvesting circuitry converting the at least a portion of said one or more first RF signals into DC energy, and using said DC energy to provide power to said on-board electronic circuitry and said RF transmitter circuitry.

13. The method according to claim 12, wherein said energy harvesting circuitry includes a matching network having an impedance chosen in manner so as to maximize a voltage level of the DC energy.

14. The method according to claim 10, further comprising converting at least a portion of said one or more first RF signals into DC energy, and using said DC energy to provide power to one or more components of said transponder apparatus.

15. The method according to claim 14, establishing a matching relationship between said transponder apparatus and said first one of said conductors and said second one of said conductors functioning as an antenna that causes the voltage level of the DC energy to be maximized.

19. The method according to claim 10, further comprising converting at least a portion of said one or more first RF signals into DC energy, and using said DC energy to provide power to said chip.

20. The method according to claim 14, establishing a matching relationship between said chip and said first one of said conductors and said second one of said conductors functioning as an antenna that causes the voltage level of the DC energy to be maximized.

16. A method of communicating information to and from a printed circuit board or an item including a printed circuit board, said printed circuit board having a plurality of conductors provided on a printed circuit board substrate, the method comprising:

providing a transponder chip on said printed circuit board, said transponder chip having a plurality of contacts, said transponder chip not having an antenna forming a part thereof;

operatively coupling at least a first one of said contacts to a first one of said conductors and at least a second one of said contacts to a second one of said conductors, said first one of said conductors and said second one of said conductors each being from independent circuits provided on said printed circuit board, wherein said first one of said conductors and said second one of said conductors function as an antenna for said transponder chip;

transmitting one or more first RF signals from a reader device to said transponder chip over an air interface through said first one of said conductors and said second one of said conductors functioning as an antenna; and

transmitting one or more second RF signals from said transponder chip to said reader device over said air interface through said first one of said conductors and said second one of said conductors functioning as an antenna.

17. The method according to claim 16, wherein said chip includes energy harvesting circuitry, on-board electronic circuitry, and RF transmitter circuitry, and wherein the method further comprises receiving at least a portion of said one or more first RF signals in said energy harvesting circuitry, said energy harvesting circuitry converting the at least a portion of said one or more first RF signals into DC energy, and using said DC energy to provide power to said on-board electronic circuitry and said RF transmitter circuitry.

18. The method according to claim 17, wherein said energy harvesting circuitry includes a matching network having an impedance chosen in manner so as to maximize a voltage level of the DC energy.

21. An apparatus, comprising:

a printed circuit board having a plurality of conductors provided on a printed circuit board substrate;

a transponder chip provided on said printed circuit board, said transponder chip having a plurality of contacts, said transponder chip not having an antenna forming a part thereof, wherein at least a first one of said contacts is operatively coupled to a first one of said conductors and at least a second one of said contacts is operatively coupled to a second one of said conductors, said first one of said conductors and said second one of said conductors each being from independent circuits provided on said printed circuit board, and wherein said first one of said conductors and said second one of said conductors function as an antenna for said transponder chip.

22. The apparatus according to claim 21, wherein said chip is part of a transponder apparatus provided on said printed circuit board, said transponder apparatus including a transponder substrate, and a first lead and a second lead provided on said transponder substrate, said first lead operatively coupling said first one of said contacts to said first one of said conductors and said second lead operatively coupling said second one of said contacts to said second one of said conductors.

23. The apparatus according to claim 22, wherein said chip includes energy harvesting circuitry, on-board electronic circuitry, and RF transmitter circuitry, wherein at least a portion of said one or more first RF signals is received in said energy harvesting circuitry, wherein said energy harvesting circuitry converts the at least a portion of said one or more first RF signals into DC energy, and wherein said DC energy provides power to said on-board electronic circuitry and said RF transmitter circuitry.

24. The apparatus according to claim 23, wherein said energy harvesting circuitry includes a matching network having an impedance chosen in manner so as to maximize a voltage level of the DC energy.