APPARATUS FOR DRIVING A TOUCH PAD AND A PORTABLE TERMINAL HAVING THE SAME
First Claim
1. An electronic device comprising:
- a display component configured to display multimedia data;
a second controller electrically coupled with a touch input detection component configured to detect a touch input; and
a first controller electrically coupled with the second controller,wherein the first controller is configured to;
if an interrupt signal is received while the first controller and the second controller are in an inactive state, convert a state of the first controller from the inactive state to an active state, and generate an activating signal for activating the second controller, andtransmit the generated activating signal to the second controller, wherein the second controller is configured to;
if the generated activating signal is received from the first controller while the second controller is in the inactive state, convert a state of the second controller from the inactive state to an active state,receive a touch input signal corresponding to the touch input via the touch input detection component while the second controller is in the active state, andtransmit a control signal including touch information, based on the received touch input signal, to the first controller in the active state,wherein the first controller in the active state is further configured to control an operation of the electronic device corresponding to the control signal received from the second controller.
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Abstract
An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.
1 Citation
18 Claims
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1. An electronic device comprising:
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a display component configured to display multimedia data; a second controller electrically coupled with a touch input detection component configured to detect a touch input; and a first controller electrically coupled with the second controller, wherein the first controller is configured to; if an interrupt signal is received while the first controller and the second controller are in an inactive state, convert a state of the first controller from the inactive state to an active state, and generate an activating signal for activating the second controller, and transmit the generated activating signal to the second controller, wherein the second controller is configured to; if the generated activating signal is received from the first controller while the second controller is in the inactive state, convert a state of the second controller from the inactive state to an active state, receive a touch input signal corresponding to the touch input via the touch input detection component while the second controller is in the active state, and transmit a control signal including touch information, based on the received touch input signal, to the first controller in the active state, wherein the first controller in the active state is further configured to control an operation of the electronic device corresponding to the control signal received from the second controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for using an electronic device including a display component configured to display multimedia data, a second controller electrically coupled with a touch input detection component configured to detect a touch input, and a first controller electrically coupled with the second controller, the method comprising:
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converting, by the first controller, if an interrupt signal is received while the first controller and the second controller are in an inactive state, a state of the first controller from the inactive state to an active state; generating, by the first controller, an activating signal for activating the second controller; transmitting, by the first controller, the generated activating signal to the second controller; converting, by the second controller, if the generated activating signal is received from the first controller while the second controller is in the inactive state, a state of the second controller from the inactive state, to an activate state; receiving, by the second controller, a touch input signal corresponding to the touch input via the touch input detection component while the second controller is in the active state; and transmitting, by the second controller, a control signal including touch information, based on the received touch input signal, to the first controller in the active state, wherein the first controller in the active state is further configured to control an operation of the electronic device corresponding to the control signal received from the second controller. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification