Mobile terminal having recharge menu setting function and inter-recharging method using the same

• US 8,575,890 B2
• Filed: 11/21/2008
• Issued: 11/05/2013
• Est. Priority Date: 11/23/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Hwang, Shi-Youn
• Primary Examiner(s): Fantu, Yalkew
• Assistant Examiner(s): HERNANDEZ, MANUEL J
• Application Number:
  US12/275,688
• Publication Number:
  US 20090140692A1
• Time in Patent Office: 1,810 Days
• Field of Search: 320/103, 320/108, 455/573
• US Class Current: 320/103
• CPC Class Codes: G08C 17/04 using magnetically coupled devices
• CPC Class Codes: H01F 2038/143 for signals
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

A non-contact recharging apparatus and method provides a recharge menu to a first mobile terminal when performing non-contact recharging using inductive coupling. A user can set and operate a menu for recharging a second mobile terminal according to the recharge menu to perform inter-recharging between the mobile terminals. A recharge menu setting state is displayed in the form of icon, and the mobile terminal performs short-range communication with the counterpart terminal during the recharging to exchange information about the remaining battery capacity and the amount of current. The exchanged information is displayed on a display module such that the user can easily check which one of the mobile terminals is being recharged and can also check the recharge level of the mobile terminal being recharged.

Claims

1. A mobile terminal having a recharge menu setting function, the mobile terminal comprising:

a user interface comprising a display providing a recharge menu to perform inter-recharging with a counterpart terminal;

a user input unit configured to receive key data for setting the recharge menu;

a short range communication unit configured to perform infrared communication with the counterpart terminal;

a coil connected with a recharger, to which current is applied when the inter-recharging is performed by non-contact recharging; and

a controller configured to control the current flowing to the coil according to the key data input through the recharge menu, and to perform a controlling operation during the inter-recharging with the counterpart terminal,

wherein the non-contact recharging is performed according to inductive coupling,

wherein during the inter-recharging, the controller exchanges battery information with the counterpart terminal by performing the infrared communication with the counterpart terminal and causes the display to display the battery information,

wherein the recharge menu comprises an inter-recharge menu including a first menu item for recharging the counterpart terminal and a second menu item for recharging the mobile terminal by the counterpart terminal, the recharge menu further comprising a recharge time, a recharge level and a menu item for setting output information when the recharging is completed or stopped, and

wherein the controller is further configured to;

cause the display to display a counterpart recharge icon and charging information of the counterpart terminal when the counterpart terminal is recharged by the non-contact recharging in response to selection of the first menu item from the inter-recharge menu; and

cause the display to display a non-contact recharge icon and charging information of the mobile terminal when the mobile terminal is recharged by the counterpart terminal in response to selection of the second menu item from the inter-recharge menu.

2. The mobile terminal of claim 1, wherein the coil is operated as a primary coil when the counterpart terminal is recharged by the mobile terminal and the coil is operated as a secondary coil when the mobile terminal is recharged by the counterpart terminal.

3. The mobile terminal of claim 1, wherein the recharge menu further comprises a menu for recharging by connecting to a recharging device.

4. The mobile terminal of claim 3, wherein the user input unit is further configured to receive an input for selecting the menu for recharging by connecting to the recharging device from the recharge menu such that a battery of the mobile terminal is recharged via the recharging device connected to a power source in response to the input.

5. The mobile terminal of claim 1, wherein the output information comprises at least a color, a sound, a character, or a recharge icon to be set.

6. The mobile terminal of claim 1, wherein the display displays the recharge menu when a specific key data is received via the user input unit, and further displays information about a recharge menu setting state and operation.

7. The mobile terminal of claim 6, wherein the controller is further configured to exchange current information by communicating with the counterpart terminal by performing the infrared communication with the counterpart terminal via the short range communication unit during the non-contact recharging.

8. The mobile terminal of claim 1, wherein the controller is further configured to cause the display to indicate that the inter-recharging has been stopped when the inter-recharging stops.

9. The mobile terminal of claim 1, wherein:

the menu item for setting output information allows a user to set the output information; and

the output information comprises visual information and audible information.

10. The mobile terminal of claim 9, wherein the visual information comprises an icon, a character, or a color that is displayed via the display.

11. The mobile terminal of claim 9, wherein the audible information comprises a sound generated via an audio output module of the mobile terminal.

12. The mobile terminal of claim 1, wherein the battery information comprises a measured current and voltage of a battery.

13. A method for performing non-contact recharging using inductive coupling to inter-recharge a mobile terminal, the method comprising:

providing, on a display of the mobile terminal, a recharge menu for performing the non-contact recharging;

displaying, on the display, an inter-recharge menu for setting a recharging of the mobile terminal or a recharging of a counterpart terminal,

wherein the recharge menu comprises the inter-recharge menu, the inter-recharge menu including a first menu item for recharging the counterpart terminal and a second menu item for recharging the mobile terminal by the counterpart terminal, the recharge menu further comprising a recharge time, a recharge level and a menu item for setting output information when the recharging is completed or stopped;

performing the inter-recharging with the counterpart terminal by controlling current flowing across a coil according to either the first menu item or the second menu item selected from the inter-recharge menu;

exchanging battery information with the counterpart terminal by performing infrared communication with the counterpart terminal and displaying the battery information on the display during the inter-recharging;

displaying a counterpart recharge icon and charging information of the counterpart terminal when the counterpart terminal is recharged by the non-contact recharging in response to selection of the first menu item from the inter-recharge menu; and

displaying a non-contact recharge icon and charging information of the mobile terminal when the mobile terminal is recharged by the counterpart terminal in response to selection of the second menu item from the inter-recharge menu; and

displaying a state of the inter-recharging by comparing the exchanged battery information.

14. The method of claim 13, wherein performing the inter-charging comprises:

operating the coil as a primary coil when the counterpart terminal is recharged; and

operating the coil as a secondary coil when the mobile terminal is charged by the counterpart terminal.

15. The method of claim 13, wherein the recharge menu further comprises a menu for recharging by connecting to a recharging device.

16. The method of claim 13, wherein the output information comprises at least a color, a sound, a character, or setting a recharge icon.