Cellular phone and apparatus for tuning to a selected frequency modulation station and downconverting a corresponding radio frequency signal for audio play out

• US 8,942,642 B2
• Filed: 06/24/2014
• Issued: 01/27/2015
• Est. Priority Date: 03/23/2006
• Status: Expired due to Fees

• Current Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Gopi, Paramesh
• Primary Examiner(s): AKINYEMI, AJIBOLA A
• Application Number:
  US14/313,034
• Publication Number:
  US 20140302801A1
• Time in Patent Office: 217 Days
• Field of Search: 455/77
• US Class Current: 455/77
• CPC Class Codes: H04B 1/3805 with built-in auxiliary receivers
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 2001/3866 carried on the head
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality

Abstract

A cellular phone including a transceiver and a processing module. The transceiver receives, from a device separate from the cellular phone, a radio or intermediate frequency signal. The radio frequency signal has been tuned by the device to a selected frequency. The intermediate frequency signal is a downconverted version of the radio frequency signal. Each of the radio and intermediate frequency signals includes the content. The content has been frequency modulated and broadcast at the selected frequency prior to the transceiver receiving the radio or intermediate frequency signal. A processing module downconverts the radio or intermediate frequency signal to a baseband signal and converts the baseband signal to a digital signal. The processing module either forwards the digital signal for audio play out of the content at the cellular phone or forwards the digital signal to the transceiver for transmission of the digital signal back to the device.

Claims

1. A cellular phone comprising:

a transceiver configured to receive, from a device separate from the cellular phone, a radio frequency signal or an intermediate frequency signal, wherein

the radio frequency signal has been tuned by the device to a selected frequency,

the intermediate frequency signal is a downconverted version of the radio frequency signal,

the radio frequency signal comprises content,

the intermediate frequency signal comprises the content, and

the content has been frequency modulated and broadcast at the selected frequency prior to the transceiver receiving the radio frequency signal or the intermediate frequency signal; and

a processing module configured to (i) downconvert the radio frequency signal or the intermediate frequency signal to a baseband signal, and (ii) convert the baseband signal to a digital signal, wherein the digital signal includes the content, and wherein the processing module is configured to either (i) forward the digital signal for audio play out of the content at the cellular phone, or (ii) forward the digital signal to the transceiver for transmission of the digital signal back to the device.

2. The cellular phone of claim 1, wherein transceiver is configured to transmit the digital signal from the cellular phone to the device.

3. The cellular phone of claim 1, further comprising a control module configured to (i) receive an input from a user, and (ii) based on the input, select a frequency modulation station, wherein:

the content, prior to being broadcast, is frequency modulated at the selected frequency for the frequency modulation station;

the transceiver is configured to (i) transmit an indication signal to the device indicating selection of the frequency modulation station, and (ii) based on the indication signal, receive the radio frequency signal or the intermediate frequency signal; and

the content is for the frequency modulation station.

4. The cellular phone of claim 1, further comprising a mixer configured to convert the intermediate frequency signal to the baseband signal,

wherein the transceiver is configured to receive the intermediate frequency signal from the device.

5. The cellular phone of claim 4, further comprising a plurality of mixers configured to covert the radio frequency signal to the baseband signal.

6. The cellular phone of claim 1, further comprising:

a converter configured to convert the digital signal to an analog signal; and

a speaker configured to play out the analog signal on the speaker.

7. A system comprising:

the cellular phone of claim 1; and

the device, wherein the device comprises

an antenna configured to receive a plurality of radio frequency signals broadcast to the device, wherein the plurality of radio frequency signals include the radio frequency signal received at the selected frequency,

a tuner connected to the antenna and configured to tune to the radio frequency signal received at the selected frequency, and

a second transceiver configured to transmit to the cellular phone (i) the radio frequency signal received at the selected frequency, or (ii) the intermediate frequency signal.

8. The system of claim 7, further comprising:

a headset comprising the device, a conductor, the antenna, and a first speaker, wherein the conductor connects the device to the first speaker; and

a converter configured to convert the digital signal to an analog signal,

wherein the first speaker is configured to play out the analog signal.

9. The system of claim 8, wherein the antenna extends adjacent to the conductor and between the device and the first speaker.

10. The system of claim 9, wherein:

the device comprises a second speaker;

the second speaker is configured to play out the analog signal; and

the antenna extends from the device, away from the first speaker, and towards the second speaker.

11. A device comprising:

a tuner configured to (i) receive a plurality of radio frequency signals broadcast to the device, wherein the plurality of radio frequency signals comprise content respectively for a plurality of frequency modulation stations, (ii) receive an indication signal from a cellular phone indicating a selected frequency modulation station, and (iii) tune to one of the plurality of radio frequency signals corresponding to the selected frequency modulation station;

a first transceiver configured to (i) transmit the one of the plurality of radio frequency signals or an intermediate frequency signal from the device to the cellular phone, wherein the intermediate frequency signal is a downconverted version of the one of the plurality of radio frequency signals, and (ii) based on the one of the plurality of radio frequency signals or the intermediate frequency signal, receive a digital signal from the cellular phone, wherein the digital signal is a downconverted version of the one of the plurality of radio frequency signals or the intermediate frequency signal, and wherein the digital signal comprises the content for the selected frequency modulation station; and

a converter configured to convert the digital signal to an analog signal for audio play out of the analog signal.

12. The device of claim 11, further comprising a speaker, wherein the speaker is configured to play out the analog signal at the device.

13. The device of claim 11, further comprising a mixer configured to convert the one of the plurality of radio frequency signals to the intermediate frequency signal,

wherein the first transceiver is configured to (i) transmit the intermediate frequency signal to the cellular phone, and (ii) based on the intermediate frequency signal, receive the digital signal.

14. A headset comprising:

the device of claim 11;

an antenna, wherein the tuner is configured to receive the plurality of radio frequency signals via the antenna;

a first speaker configured to play out the analog signal; and

a conductor, wherein the conductor connects the device to the first speaker.

15. The headset of claim 14, wherein the antenna extends adjacent to the conductor and between the device and the first speaker.

16. The headset of claim 15, further comprising a second speaker, wherein:

the second speaker is configured to play out the analog signal, and

the antenna extends from the device, away from the first speaker, and towards the second speaker.

17. A system comprising:

the device of claim 11; and

the cellular phone comprising

a second transceiver configured to receive from the device the one of the plurality of radio frequency signals or the intermediate frequency signal, and

a processing module configured to (i) downconvert the one of the plurality of radio frequency signals or the intermediate frequency signal to a baseband signal, and (ii) convert the baseband signal to the digital signal, wherein the baseband signal includes the content, and wherein the second transceiver is configured to transmit the digital signal to the first transceiver.

18. The system of claim 17, wherein the cellular phone comprises a control module configured to (i) receive an input from a user, and (ii) generate the indication signal based on the input,

wherein the second transceiver is configured to (i) transmit the indication signal to the device, and (ii) based on the indication signal, receive the one of the plurality of radio frequency signals or the intermediate frequency signal.

19. The system of claim 17, wherein:

the second transceiver is configured to receive the one of the plurality of radio frequency signals; and

the cellular phone comprises a plurality of mixers configured to covert the one of the plurality of radio frequency signals to the baseband signal.

20. The system of claim 17, wherein:

the second transceiver is configured to receive the intermediate frequency signal; and

the cellular phone comprises a second mixer configured to convert the intermediate frequency signal to the baseband signal.