System and method for conserving battery power in a mobile station
DCFirst Claim
Patent Images
1. A mobile station, comprising:
- a display;
a proximity sensor adapted to generate a signal indicative of proximity of an external object; and
a microprocessor adapted to;
(a) determine whether a telephone call is active;
(b) receive the signal from the proximity sensor; and
(c) reduce power to the display if (i) the microprocessor determines that a telephone call is active and (ii) the signal indicates the proximity of the external object;
wherein;
the telephone call is a wireless telephone call;
the microprocessor reduces power to the display while the signal indicates the proximity of the external object only if the microprocessor determines that the wireless telephone call is active; and
the proximity sensor begins detecting whether an external object is proximate substantially concurrently with the mobile station initiating an outgoing wireless telephone call or receiving an incoming wireless telephone call.
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Accused Products
Abstract
In one embodiment, a mobile station including a chassis having a display, a power reducer, a proximity sensor, and a microprocessor. The power reducer controls power consumption of the display. The proximity sensor is coupled to the chassis and causes the power consumption to be reduced when the display is within a predetermined range of an external object. The microprocessor is coupled to the proximity sensor and to the display and automatically activates the proximity sensor based on the mobile station receiving an incoming wireless telephone call.
39 Citations
13 Claims
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1. A mobile station, comprising:
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a display; a proximity sensor adapted to generate a signal indicative of proximity of an external object; and a microprocessor adapted to; (a) determine whether a telephone call is active; (b) receive the signal from the proximity sensor; and (c) reduce power to the display if (i) the microprocessor determines that a telephone call is active and (ii) the signal indicates the proximity of the external object;
wherein;the telephone call is a wireless telephone call; the microprocessor reduces power to the display while the signal indicates the proximity of the external object only if the microprocessor determines that the wireless telephone call is active; and the proximity sensor begins detecting whether an external object is proximate substantially concurrently with the mobile station initiating an outgoing wireless telephone call or receiving an incoming wireless telephone call. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of conserving battery power in a mobile station, comprising:
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detecting whether an external object is proximate; determining whether a telephone call is active; and reducing power consumption of a display of the mobile station if (i) a telephone call is determined to be active and (ii) the proximity of the external object is detected;
wherein;the telephone call is a wireless telephone call; the power consumption of the display is reduced while the proximity of the external object is detected only if the wireless telephone call is determined to be active; and detecting whether an external object is proximate begins substantially concurrently with the mobile station initiating an outgoing wireless telephone call or receiving an incoming wireless telephone call. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification