METHOD FOR DISPLAY OF DUAL STANDBY PORTABLE TERMINAL AND APPARATUS THEREOF

• US 20100167781A1
• Filed: 12/28/2009
• Published: 07/01/2010
• Est. Priority Date: 12/30/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: SEO, Jung Sik
• Granted Patent: US 8,494,578 B2
• Time in Patent Office: Days
• US Class Current: 455/552.100
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Provided is a display method of a dual standby portable terminal, which includes checking a connection state of a switching unit, when a main controller senses an event; displaying data corresponding to the event to a display unit by the main controller, when the main controller is connected with the display unit; and connecting the display unit with a sub-controller, when control information is received from the sub-controller.

Claims

1. A display method of a dual standby portable terminal comprising a main controller, a sub-controller and a display unit, the method comprising;

checking a connection state of a switching unit, when the main controller senses an event;

displaying data corresponding to the event to the display unit by the main controller, when the main controller is connected with the display unit; and

connecting the display unit with the sub-controller, when control information is received at the main controller from the sub-controller.

2. The display method of claim 1, wherein the event is associated with at least one of a short message service and a multimedia service.

3. The display method of claim 1, wherein the control information is information that the sub-controller requests of the main controller a connection with the display unit , when the sub-controller senses an event.

4. The display method of claim 1, wherein connecting the display unit comprises:

transmitting a control signal for switching a connection with the display unit to the switching unit; and

transmitting a connection confirmation signal of the display unit and the sub-controller to the sub-controller, when the control signal is transmitted.

5. The display method of claim 4, further comprising, in the sub-controller, displaying data corresponding to an event to the display unit, when the connection confirmation signal is received.

6. The display method of claim 4, wherein the connection confirmation signal is a signal that notifies the sub-controller of a state of connection between the sub-controller and the display unit according to the change of connection state which is changed when the main controller controls the switching unit.

7. The display method of claim 1, further comprising, in the main controller, entering a standby mode, when the connection with the display unit is switched to the sub-controller.

8. The display method of claim 1, further comprising, in the sub-controller, entering a standby mode, when a connection termination signal is transmitted from the main controller.

9. The display method of claim 8, wherein the connection termination signal is a signal that notifies the sub-controller of the state of connection termination between the sub-controller and the display unit.

10. A dual standby portable terminal, comprising:

a switching unit which switches a connection of a display unit according to a control signal for switching the connection of a display unit;

a sub-controller which transmits control information to a main controller, and displays data corresponding to an event to the display unit in case of being connected to the display unit; and

a main controller which transmits the control signal for switching the connection of the display unit to the sub-controller to the switching unit, when the control information is received from the sub-controller.

11. The dual standby portable terminal of claim 10, wherein the event is at least one of a short message service and a multimedia service, and is displayed to the display unit.

12. The dual standby portable terminal of claim 10, wherein the control information is information which requests a connection with the display unit to the main controller, when the sub-controller senses an event.

13. The dual standby portable terminal of claim 10, wherein the main controller transmits to the sub-controller a connection confirmation signal of the display unit and the sub-controller, when the control signal is transmitted.

14. The dual standby portable terminal of claim 13, wherein the connection confirmation signal is a signal which notifies the sub-controller of a state of connection between the sub-controller and the display unit.

15. The dual standby portable terminal of claim 10, wherein the main controller enters a standby mode, when the connection with the display unit is switched to the sub-controller.

16. The dual standby portable terminal of claim 10, wherein the sub-controller enters a standby mode, when a connection termination signal is transmitted from the main controller.

17. The dual standby portable terminal of claim 16, wherein the connection termination signal is a signal which notifies the sub-controller of the state of connection termination between the sub-controller and the display unit.

18. An apparatus for managing a display screen in a dual standby terminal comprising:

a first processor in communication with a first memory, the first memory including code which when accessed by the processor causes the processor to;

receiving an first event from a receiving system associated with a first communication system;

a second processor in communication with a second memory, the second memory including code which when accessed by the processor causes the processor to;

receiving an second event from a receiving system associated with a second communication system;

a display unit for displaying information associated with at least one of the first event and the second event;

a switching unit, receiving control inputs from the first processor;

for switching an input of the display between an output of each of the first and second processors, and

a dual-port RAM, in communication with the first and second processors, wherein control information in the dual-port RAM causes the switch to create a path between the second processor and the display unit.

19. The apparatus of claim 18, wherein a path between the first processor and display unit represents a default path.

20. The apparatus of claim 19, wherein the path between the second processor and the display unit is maintained until an event is received by the first processor.