METHOD AND SYSTEM FOR SHARING FILTERS BETWEEN TRANSMIT AND RECEIVE PATHS IN AN INTEGRATED FM RADIO

• US 20080232279A1
• Filed: 11/09/2007
• Published: 09/25/2008
• Est. Priority Date: 03/19/2007
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Marholev, Bojko
• Application Number:
  US11/938,007
• Publication Number:
  US 20080232279A1
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04B 1/403 using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency

Abstract

Aspects of a method and system for sharing filters between transmit and receive paths in an integrated FM radio are provided. In this regard, a FM radio receive processing path and a FM radio transmit processing path may each be configured to share a filter. Accordingly, one or more switching elements may enable coupling/decoupling the filter to/from the FM radio transmit and FM radio receive processing paths. Furthermore, the switching elements may be programmatically controlled by a processor and/or memory. Additionally, by coupling the filter to the transmit receive paths during alternating time intervals, aspects of the invention may enable simulating simultaneous transmission and reception of FM radio signals utilizing while sharing one or more filters. In various embodiments of the invention, separate filters may be utilized for an in-phase processing path and a quadrature phase processing path.

Claims

1. A method for processing signals in a communication system, the method comprising:

in an integrated circuit comprising FM radio transmit and FM radio receive functions, sharing one or more filters for processing received FM radio signals and for processing FM radio signals for transmission.

2. The method according to claim 1, comprising configuring an FM radio receive processing path within said integrated circuit for said sharing of said one or more filters for said processing of said received FM radio signals.

3. The method according to claim 2, comprising switching during said configuring, said one or more filters into said FM radio receive processing path for said processing of said received FM radio signals.

4. The method according to claim 3, comprising programmably controlling said switching of said one or more filters during said configuring.

5. The method according to claim 1, comprising configuring an FM radio transmit processing path within said integrated circuit for said sharing of said one or more filters for said processing of said FM radio signals to be transmitted.

6. The method according to claim 5, comprising switching during said configuring, said one or more filters into said FM radio transmit processing path for said processing of said FM radio signals to be transmitted.

7. The method according to claim 6, comprising programmably controlling said switching of said one or more filters during said configuring.

8. The method according to claim 1, comprising enabling time division duplexing of receiving of said received FM radio signals, and said transmitting of said FM radio signals.

9. The method according to claim 8, comprising:

enabling said one or more filters for said receiving of said received FM radio signals in a first time interval; and

enabling said one or more filters for said transmitting of said FM radio signals in a time interval successive to said first time interval.

10. The method according to claim 1, comprising:

sharing said one or more filters in an in-phase path utilized for processing received FM radio signals and with a corresponding in-phase path utilized for processing FM radio signals for transmission; and

sharing said one or more filters in a quadrature path utilized for processing received FM radio signals and with a corresponding quadrature path utilized for processing FM radio signals for transmission.

11. A machine-readable storage having stored thereon, a computer program having at least one code section for processing signals in a communication system, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

in an integrated circuit comprising FM radio transmit and FM radio receive functions, sharing one or more filters for processing received FM radio signals and for processing FM radio signals for transmission.

12. The machine-readable storage according to claim 11, wherein said at least one code section comprises code for configuring an FM radio receive processing path within said integrated circuit for said sharing of said one or more filters for said processing of said received FM radio signals.

13. The machine-readable storage according to claim 12, wherein said at least one code section comprises code for switching during said configuring, said one or more filters into said FM radio receive processing path for said processing of said received FM radio signals.

14. The machine-readable storage according to claim 13, wherein said at least one code section comprises code for programmably controlling said switching of said one or more filters during said configuring.

15. The machine-readable storage according to claim 11, wherein said at least one code section comprises code for configuring an FM radio transmit processing path within said integrated circuit for said sharing of said one or more filters for said processing of said FM radio signals to be transmitted.

16. The machine-readable storage according to claim 15, wherein said at least one code section comprises code for switching during said configuring, said one or more filters into said FM radio transmit processing path for said processing of said FM radio signals to be transmitted.

17. The machine-readable storage according to claim 16, wherein said at least one code section comprises code for programmably controlling said switching of said one or more filters during said configuring.

18. The machine-readable storage according to claim 11, wherein said at least one code section comprises code for enabling time division duplexing of receiving of said received FM radio signals, and said transmitting of said FM radio signals.

19. The machine-readable storage according to claim 18, wherein said at least one code section comprises:

code for enabling said one or more filters for said receiving of said received FM radio signals in a first time interval; and

code for enabling said one or more filters for said transmitting of said FM radio signals in a time interval successive to said first time interval.

20. The machine-readable storage according to claim 11, wherein said at least one code section comprises:

code for sharing said one or more filters in an in-phase path utilized for processing received FM radio signals and with a corresponding in-phase path utilized for processing FM radio signals for transmission; and

code for sharing said one or more filters in a quadrature path utilized for processing received FM radio signals and with a corresponding quadrature path utilized for processing FM radio signals for transmission

21. A system for processing signals in a communication system, the system comprising:

one or more circuits in an integrated circuit that enables FM radio transmit and FM radio receive functions, wherein said one or more circuits enables sharing one or more filters for processing received FM radio signals and for processing FM radio signals for transmission.

22. The system according to claim 21, wherein said one or more circuits enable configuration of an FM radio receive processing path within said integrated circuit for said sharing of said one or more filters for said processing of said received FM radio signals.

23. The system according to claim 22, wherein said one or more circuits enable switching, during said configuring, of said one or more filters into said FM radio receive processing path for said processing of said received FM radio signals.

24. The system according to claim 23, wherein said one or more circuits enable programmable control of said switching of said one or more filters during said configuring.

25. The system according to claim 21, wherein said one or more circuits enable configuration an FM radio transmit processing path within said integrated circuit for said sharing of said one or more filters for said processing of said FM radio signals to be transmitted.

26. The system according to claim 25, wherein said one or more circuits enable switching, during said configuring, of said one or more filters into said FM radio transmit processing path for said processing of said FM radio signals to be transmitted.

27. The system according to claim 26, wherein said one or more circuits enable programmable control said switching of said one or more filters during said configuring.

28. The system according to claim 21, wherein said one or more circuits enable time division duplexing of receiving of said received FM radio signals, and said transmitting of said FM radio signals.

29. The system according to claim 28, wherein:

wherein said one or more circuits enable said one or more filters for said receiving of said received FM radio signals in a first time interval; and

wherein said one or more circuits enable said one or more filters for said transmitting of said FM radio signals in a time interval successive to said first time interval.

30. The system according to claim 21, wherein:

wherein said one or more circuits enable said one or more filters in an in-phase path utilized for processing received FM radio signals and with a corresponding in-phase path utilized for processing FM radio signals for transmission; and

wherein said one or more circuits enable said one or more filters in a quadrature path utilized for processing received FM radio signals and with a corresponding quadrature path utilized for processing FM radio signals for transmission.