Method and System for Utilizing a Frequency Modulation (FM) Antenna For Near Field Communication (NFC) and Radio Frequency Identification (RFID)

• US 20080090540A1
• Filed: 09/29/2006
• Published: 04/17/2008
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza
• Granted Patent: US 7,907,926 B2
• Time in Patent Office: Days
• US Class Current: 455/289
• CPC Class Codes: H04B 5/48 Transceivers

Abstract

Aspects of a method and system for utilizing a frequency modulation (FM) antenna for near field communication (NFC) and radio frequency identification (RFID) are presented. Aspects of a system for utilizing an FM antenna for NFC and RFID may include a tuning control block that enables configuration of at least one capacitor array to control a frequency for reception of signals. A processor may enable configuration of an antenna for the reception of signals wherein the frequency for the received signals is utilized for FM signal reception, and at least one of: NFC signal reception, and RFID signal reception.

Claims

1. A method for communicating information in a wireless communication system, the method comprising:

configuring at least one capacitor array to control a frequency for receiving signals; and

configuring an antenna for said receiving wherein said frequency is utilized for FM signal reception, and at least one of;

near field communication (NFC) signal reception, and radio frequency identification (RFID) signal reception.

2. The method according to claim 1, comprising configuring said antenna and at least one inductor for said FM signal reception.

3. The method according to claim 1, comprising configuring at least one inductor and at least one of:

a voltage source, a capacitor, and a ground reference for said NFC signal reception or for said RFID signal reception.

4. The method according to claim 3, comprising detecting electromagnetic energy in a wireless medium via said at least one inductor for said NFC signal reception or for said RFID signal reception.

5. The method according to claim 1, comprising selecting a frequency for said RFID signal reception.

6. The method according to claim 5, wherein said selected frequency is modified for said RFID signal reception based on said configuring of said at least one capacitor array.

7. The method according to claim 1, comprising selecting a frequency for said NFC signal reception.

8. The method according to claim 7, wherein said selected frequency is modified for said NFC signal reception based on said configuring said at least one capacitor array.

9. A machine-readable storage having stored thereon, a computer program having at least one code section for communicating information in a wireless communications system, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

configuring at least one capacitor array to control a frequency for receiving signals; and

configuring an antenna for said receiving wherein said frequency is utilized for FM signal reception, and at least one of;

near field communication (NFC) signal reception, and radio frequency identification (RFID) signal reception.

10. The machine-readable code according to claim 9, wherein said at least one code section comprises code for configuring said antenna and at least one inductor for said FM signal reception.

11. The machine-readable code according to claim 9, wherein said at least one code section comprises code for configuring at least one inductor and at least one of:

a voltage source, a capacitor, and a ground reference for said NFC signal reception or for said RFID signal reception.

12. The machine-readable code according to claim 11, wherein said at least one code section comprises code for detecting electromagnetic energy in a wireless medium via said at least one inductor for said NFC signal reception or for said RFID signal reception.

13. The machine-readable code according to claim 9, wherein said at least one code section comprises code for selecting a frequency for said RFID signal reception.

14. The machine-readable code according to claim 13, wherein said selected frequency is modified for said RFID signal reception based on said configuring said at least one capacitor array.

15. The machine-readable code according to claim 9, wherein said at least one code section comprises code for selecting a frequency for said NFC signal reception.

16. The machine-readable code according to claim 15, wherein said selected frequency is modified for said NFC signal reception based on said configuring said at least one capacitor array.

17. A system for communicating information in a wireless communication system, the system comprising:

at least one circuit that enables configuration of at least one capacitor array to control a frequency for reception of signals; and

said at least one circuit enables configuration of an antenna for said reception wherein said frequency is utilized for FM signal reception, and at least one of;

near field communication (NFC) signal reception, and radio frequency identification (RFID) signal reception.

18. The system according to claim 17, wherein said at least one circuit enables configuration of said antenna and at least one inductor for said FM signal reception.

19. The system according to claim 17, wherein said at least one circuit enables configuration of at least one inductor and at least one of:

a voltage source, a capacitor, and a ground reference for said NFC signal reception or for said RFID signal reception.

20. The system according to claim 19, wherein said at least one circuit enables detection of electromagnetic energy in a wireless medium via said at least one inductor for said NFC signal reception or for said RFID signal reception.

21. The system according to claim 17, wherein said at least one circuit enables selection of a frequency for said RFID signal reception.

22. The system according to claim 21, wherein said selected frequency is modified for said RFID signal reception based on said configuration of said at least one capacitor array.

23. The system according to claim 17, wherein said at least one circuit enables selection of a frequency for said NFC signal reception.

24. The system according to claim 23, wherein said selected frequency is modified for said NFC signal reception based on said configuration of said at least one capacitor array.

25. A system for communicating information in a wireless communication system, the system comprising:

at least one circuit that controls a frequency for reception of signals; and

said at least one circuit enables configuration of an antenna for said reception wherein said frequency is utilized for FM signal reception, and at least one of;

near field communication (NFC) signal reception, and radio frequency identification (RFID) signal reception.

26. The system according to claim 25, wherein said at least one circuit enables configuration of said antenna and at least one inductor for said FM signal reception.

27. The system according to claim 25, wherein said at least one circuit enables configuration of at least one inductor and at least one of:

a voltage source, a capacitor, and a ground reference for said NFC signal reception or for said RFID signal reception.

28. The system according to claim 27, wherein said at least one circuit enables detection of electromagnetic energy in a wireless medium via said at least one inductor for said NFC signal reception or for said RFID signal reception.

29. The system according to claim 25, wherein said at least one circuit enables selection of a frequency for said RFID signal reception.

30. The system according to claim 29, wherein said selected frequency is modified for said RFID signal reception based on configuration of at least one capacitor array.

31. The system according to claim 25, wherein said at least one circuit enables selection of a frequency for said NFC signal reception.

32. The system according to claim 31, wherein said selected frequency is modified for said NFC signal reception based on configuration of at least one capacitor array.

33. A system for communicating information in a wireless communication system, the system comprising:

at least one circuit that enables configuration of an antenna for reception of signals wherein a frequency of received signals is utilized for FM signal reception, and at least one of;

near field communication (NFC) signal reception, and radio frequency identification (RFID) signal reception.

34. The system according to claim 33, wherein said at least one circuit enables configuration of said antenna and at least one inductor for said FM signal reception.

35. The system according to claim 33, wherein said at least one circuit enables configuration of at least one inductor and at least one of:

a voltage source, a capacitor, and a ground reference for said NFC signal reception or for said RFID signal reception.

36. The system according to claim 35, wherein said at least one circuit enables detection of electromagnetic energy in a wireless medium via said at least one inductor for said NFC signal reception or for said RFID signal reception.

37. The system according to claim 33, wherein said at least one circuit enables selection of a frequency for said RFID signal reception.

38. The system according to claim 37, wherein said selected frequency is modified for said RFID signal reception based on configuration of at least one capacitor array.

39. The system according to claim 33, wherein said at least one circuit enables selection of a frequency for said NFC signal reception.

40. The system according to claim 39, wherein said selected frequency is modified for said NFC signal reception based on configuration of at least one capacitor array.