Mobile terminal and method for providing enhanced contactless communication using contactless module

• US 8,670,712 B2
• Filed: 12/08/2009
• Issued: 03/11/2014
• Est. Priority Date: 12/14/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jolivet, Paul
• Primary Examiner(s): WEST, LEWIS G
• Application Number:
  US13/132,804
• Publication Number:
  US 20110237190A1
• Time in Patent Office: 1,554 Days
• Field of Search: 340/572.7, 455/41.2, 455/41.1, 455/41.3, 455/574, 455/575.7
• US Class Current: 455/41.2
• CPC Class Codes: H04B 5/0081 with antenna coils loop aerials H01Q7/00
• CPC Class Codes: H04B 5/26 using coils

Abstract

A method and mobile terminal for enhanced contactless communication are discussed. According to an embodiment, the invention provides a mobile terminal comprising: a plurality of antennas designated for a contactless reception/transmission of signals from/to an external device, each of the plurality of antennas configured to receive a signal provided from the external device; and a contactless module operatively coupled to the plurality of antennas, and including a controller, the controller configured to check a strength of the signal received from each of the plurality of antennas, to select one of the plurality of antennas based on the checked result, and to receive the signal continuously or a new signal using the selected antenna.

Claims

1. A method for providing contactless communication in a mobile terminal, the mobile terminal including a plurality of antennas designated for a contactless reception/transmission of signals from/to an external device, a contactless module operatively coupled to the plurality of antennas, a controller and a multiplexer, the method performed by the controller and comprising:

receiving signals from the external device through the plurality of antennas;

checking strength of the signals received through each of the plurality of antennas;

selecting one of the plurality of antennas based on the strength of the signals using the multiplexer;

deactivating the multiplexer based on the strength of the signals; and

communicating with the external device through the selected antenna.

2. The method of claim 1, further comprising:

transmitting a signal to the external device using the selected antenna.

3. The method of claim 1, wherein the mobile terminal further comprises an accelerometer, and

wherein the method further comprises:

determining, by the accelerometer, information on a movement of the mobile terminal; and

selecting, by the controller, the one of the plurality of antennas based on the information on the movement of the mobile terminal and the strength of the signals received through each of the antennas.

4. The method of claim 1, wherein the mobile terminal further comprises a removable storage device configured to store therein data, and wherein the method further comprises at least one of the following steps:

retrieving, by the contactless module, the data stored in the removable storage device for transmission to the external device;

or

storing data received from the external device contactlessly in the removable storage device.

5. The method of claim 1, wherein the multiplexer is deactivated when the strength of the signals is less than a reference strength.

6. The method of claim 1, further comprising:

deactivating the multiplexer when the mobile terminal is in a battery off mode providing only limited services.

7. A mobile terminal comprising:

a plurality of antennas designated for a contactless reception/transmission of signals from/to an external device, each of the plurality of antennas configured to receive a signal provided from the external device;

a contactless module operatively coupled to the plurality of antennas;

a multiplexer for selectively multiplexing among the plurality of antennas; and

a controller which is configured to;

receive signals from the external device through the plurality of antennas;

check strength of the signals received through each of the plurality of antennas;

select one of the plurality of antennas based on the strength of the signals using the multiplexer;

deactivate the multiplexer based on the strength of the signals; and

communicate with the external device through the selected antenna.

8. The mobile terminal of claim 7, wherein the controller is further configured to transmit a signal to the external device using the selected antenna.

9. The mobile terminal of claim 7, further comprising:

an accelerometer configured to determine information on a movement of the mobile terminal,

wherein the controller is further configured to check the information on the movement of the mobile terminal, and select the one of the plurality of antennas based on the information on the movement of the mobile terminal and the strength of the signals received through each of the antennas.

10. The mobile terminal of claim 7, further comprising:

a removable storage device configured to store therein data,

wherein the contactless module retrieves the data stored in the removable storage device for transmission to the external device and/or stores data received from the external device contactlessly in the removable storage device.

11. The mobile terminal of claim 7, wherein the multiplexer is deactivated when the strength of the signals is less than a reference strength.

12. The mobile terminal of claim 7, wherein the controller is further configured to:

deactivate the multiplexer when the mobile terminal is in a battery off mode providing only limited services.