Energy source communication employing slot antenna

• US 7,123,204 B2
• Filed: 04/24/2003
• Issued: 10/17/2006
• Est. Priority Date: 04/24/2002
• Status: Expired due to Term

• Current Assignee: Buffalo Patents, LLC
• Original Assignee: Mineral Lassen LLC (Intellectual Ventures LLC)
• Inventors: King, Patrick F., Forster, Ian J., Ginn, Michael G.
• Primary Examiner(s): Nguyen, Hoang V.
• Application Number:
  US10/422,609
• Publication Number:
  US 20040036657A1
• Time in Patent Office: 1,272 Days
• Field of Search: 343/767, 343/768, 343/769, 343/872, 343/702, 343/770, 343/720, 343/746, 340/572.1, 340/572.7
• US Class Current: 343/767
• 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
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 13/106 Microstrip slot antennas patch antenna elements H01Q9/0407
• CPC Class Codes: H01Q 13/18 the slot being backed by, or formed in boundary wall of, a resonant cavity longitudinally slotted cylinder H01Q13/12 ; Open cavity antennas

Abstract

The invention relates to a wireless communication device that is coupled to an energy source, such as a battery, capacitor, or solar cell. The wireless communication device is coupled to a slot in the energy source to form a slot antenna for wireless communication. The slot antenna receives communication signals from an interrogation reader or other communication device. The wireless communication device may be attached to a device or container for purposes such as communicating information regarding identification, manufacturing, tracking, and the like. The wireless communication device may also be coupled to the energy source for power.

Claims

1. An energy source, comprising:

a body having a first and second terminal separated by a separator forming a slot between said first and second terminals; and

a wireless communication device coupled to said slot said slot forming a slot antenna for wireless communication.

2. The energy source of claim 1, wherein said wireless communication device is a passive device.

3. The energy source of claim 1, wherein said wireless communication device is an active device.

4. The energy source of claim 1, wherein said wireless communication device includes first and second feed lines that are coupled to said first and second terminals to provide power to said wireless communication device.

5. The energy source of claim 4, wherein said first and second feed lines are attached to said first and second terminals using a conductive adhesive.

6. The energy source of claim 1, wherein said separator forms a seal between said first terminal and said second terminal.

7. The energy source of claim 1, further comprising an adhesive between said wireless communication device and said body to attach said wireless communication device to said body.

8. The energy source of claim 1, wherein said wireless communication device is coupled to said slot using a fred line.

9. The energy source of claim 8, wherein said feed line is a conductive tab.

10. The energy source of claim 9, wherein said conductive tab is around about three millimeters.

11. The energy source of claim 8, wherein said feed line is directly connected to said slot.

12. The energy source of claim 8, wherein said feed line is reactively connected to said slot.

13. The energy source of claim 8, wherein said feed line is comprised of a plurality of feed lines.

14. The energy source of claim 1, wherein said wireless communication device is coupled to said slot using a plurality of feed lines.

15. A battery, comprising:

a body having a positive terminal and a negative terminal separated by a separator forming a slot between said first and second terminals;

a wireless communication device attached to said body; and

at least one feed point coupled to said wireless communication device and said slot to form a slot antenna.

16. The battery of claim 15, wherein said at least one feed point is a thin conductive tab.

17. The battery of claim 15, wherein said wireless communication device is attached to said positive terminal and said negative terminal to provide power to said wireless communication device.

18. A battery, comprising:

a means for creating a voltage potential;

a separating means for creating a separation between said means for creating a voltage potential to provide a slot;

an attachment means for attaching a wireless communication device to the battery; and

a coupling means for coupling said wireless communication device to said slot to form a slot antenna.

19. A wireless communication device attached to an energy source, comprising:

a control system coupled to the energy source; and

a communication electronics coupled to said control system and coupled to a slot in the energy source to provide a slot antenna.

20. The device of claim 19, wherein said control system is powered by the energy source.

21. A wireless communication energy source system, comprising:

an energy source, comprising a body having a first and second terminal separated by a separator forming a slot between said first and second terminals;

a wireless communication device attached to said energy source and coupled to said slot to form a slot antenna; and

an interrogator adapted to communicate information wirelessly with said wireless communication device.

22. The system of claim 21, wherein said interrogator emits a signal to said wireless communication device to power said wireless communication device.

23. The system of claim 22, wherein said signal recharges said energy source.

24. The system of claim 21, wherein said interrogator communicates to said wireless communication device to transfer information.

25. The system of claim 24, wherein said information is comprised from the group consisting of identification information, tracking information, and manufacturing information.

26. A method of providing a slot antenna for a wireless communication device, comprising the steps of:

providing an energy source having a slot created by a separator in said energy source; and

coupling the wireless communication device to said slot to form a slot antenna.

27. The method of claim 26, further comprising receiving a communication signal through said slot antenna.

28. The method of claim 26, further comprising receiving an energy-bearing signal through said slot antenna.

29. The method of claim 28, further comprising recharging said energy source with said energy-bearing signal.

30. The method of claim 26, further comprising attaching the wireless communication device to said negative and positive terminals of the energy source to provide power to the wireless communication device.

31. The method of claim 30, wherein said coupling further comprises coupling the wireless communication device to a plurality of points on said slot.

32. The method of claim 30, wherein said attaching the wireless communication device to said negative and positive terminals further comprises coupling one of said terminals to the wireless communication device using a feed line.

33. The method of claim 30, wherein said attaching the wireless communication device to said negative and positive terminals further comprises coupling both of said terminals to the wireless communication device using feed lines.

34. The method of claim 26, wherein said coupling further comprises coupling the wireless communication device to one point on said slot.

35. The method of claim 26 wherein the energy source is a battery, the method further comprising the steps of:

placing the wireless communication device on the body of the battery; and

covering the outside of said body with a sleeve to encapsulate said wireless communication device to the body.