BATTERY CHARGER ANTENNA, METHOD AND DEVICE INCORPORATING THE SAME

• US 20070281756A1
• Filed: 05/30/2006
• Published: 12/06/2007
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Original Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Inventors: HYATT, Edward Craig, FRIBERG, Markus Jan, FLOBERG, Henrik Carl
• Granted Patent: US 7,574,187 B2
• Time in Patent Office: Days
• US Class Current: 455/573
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers

Abstract

A method for providing battery charge current to a portable electronic device having a rechargeable battery. The method includes the steps of providing a power adaptor which connects to a power supply and converts power from the power supply into a battery charge current; providing a cable operative to deliver the battery charge current from the power adaptor to the portable electronic device to charge the rechargeable battery; and providing radio frequency (RF) signals induced onto the cable to an RF receiver input.

Claims

1. A method of providing battery charge current to a portable electronic device having a rechargeable battery, the method comprising the steps of:

providing a power adaptor which connects to a power supply and converts power from the power supply into a battery charge current;

providing a cable operative to deliver the battery charge current from the power adaptor to the portable electronic device to charge the rechargeable battery; and

providing radio frequency (RF) signals induced onto the cable to an RF receiver input.

2. The method of claim 1, wherein the cable connects to the portable electronic device, and the portable electronic device comprises decoupling circuitry operative to decouple the RF signals from the cable and to provide the RF signals to the RF receiver input, the RF receiver input being included in the portable electronic device.

3. The method of claim 2, wherein the decoupling circuitry comprises a decoupling capacitor.

4. The method of claim 2, wherein the decoupling circuitry blocks DC components on the cable from being input to the RF receiver input.

5. The method of claim 1, wherein an accessory is coupled to the cable and provides the battery charge current to the portable electronic device, the accessory comprising decoupling circuitry operative to decouple the RF signals from the cable and to provide the RF signals to the RF receiver input.

6. The method of claim 5, wherein the RF receiver input is included in the portable electronic device.

7. The method of claim 6, wherein the accessory is a docking station for use when charging the rechargeable battery in the portable electronic device.

8. The method of claim 5, wherein the RF receiver input is included in the accessory.

9. The method of claim 8, wherein the accessory further includes an audio amplifier for amplifying audio signals output from the RF receiver included within the accessory.

10. The method of claim 9, wherein the accessory further includes at least one speaker for reproducing the audio signals.

11. The method of claim 1, wherein the cable is coupled to at least one inductor for isolating the cable from system ground at frequencies of the RF signals.

12. A portable electronic device, comprising:

a rechargeable battery;

a radio receiver including an RF receiver input;

an input for receiving a battery charge current from a cable operative to deliver the battery charge current from a power adaptor to the portable electronic device in order to charge the rechargeable battery; and

decoupling circuitry operative to decouple RF signals induced onto the cable and to provide the RF signals to the RF receiver input.

13. The device of claim 12, wherein the decoupling circuitry comprises a decoupling capacitor.

14. The device of claim 12, wherein the decoupling circuitry blocks DC components on the cable from being input to the RF receiver input.

15. A docking station for docking a portable electronic device having a rechargeable battery in order to recharge the rechargeable battery, the docking station comprising:

an input for receiving a battery charge current from a cable operative to deliver the battery charge current from a power adaptor to the portable electronic device via the docking station in order to charge the rechargeable battery; and

decoupling circuitry operative to decouple RF signals induced onto the cable and to provide the RF signals to an RF receiver input.

16. The docking station of claim 15, wherein the RF receiver input is included in the portable electronic device.

17. The docking station of claim 16, wherein the docking station includes an audio amplifier for amplifying audio signals output from the RF receiver included within the portable electronic device.

18. The docking station of claim 17, wherein the docking station further includes at least one speaker for reproducing the audio signals.

19. The docking station of claim 15, wherein the RF receiver input is included in the docking station.

20. The docking station of claim 19, wherein the docking station further includes an audio amplifier for amplifying audio signals output from the RF receiver included within the docking station.

21. The docking station of claim 20, wherein the docking station further includes at least one speaker for reproducing the audio signals.

22. The docking station of claim 15, wherein the cable is coupled to at least one inductor for isolating the cable from system ground at frequencies of the RF signals.