Dual purpose ambient light sensor
First Claim
1. An apparatus for controlling the brightness of a plurality of illuminators of an electronic device, the electronic device configured to move between an open position and a closed position, the apparatus comprising:
- an ambient light sensor configured on a surface of the electronic device such that the ambient light sensor is exposed when the electronic device is in the open configuration and when the electronic device is in the closed configuration the ambient light sensor is covered; and
a control circuit operative to receive an output from the ambient light sensor and configured to control the brightness of a first illuminator in response to ambient light when the electronic device is in the open position and the brightness of a second illuminator in response to ambient light when the electronic device is in the closed position, wherein the first illuminator is configured on the surface.
1 Assignment
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Accused Products
Abstract
A dual purpose ambient light sensor. More particularly, an ambient light sensor may be provided on an electronic device to aid in controlling the brightness of the illuminators of the device. The ambient light sensor may be mounted in such a way as to detect ambient light when the electronic device is opened or closed so that the device may control the brightness of the illuminators of the device, whether the illuminators are mounted on the outer or inner shell of the device. Further, when the display is closed, the sensitivity of the ambient light sensor may be adjusted appropriately to account for the lesser amount of light that may reach the sensor. Finally, a spacer or light pipe may be provided to allow ambient light to reach the sensor to provide an accurate ambient light reading when the device is in the closed position.
47 Citations
20 Claims
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1. An apparatus for controlling the brightness of a plurality of illuminators of an electronic device, the electronic device configured to move between an open position and a closed position, the apparatus comprising:
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an ambient light sensor configured on a surface of the electronic device such that the ambient light sensor is exposed when the electronic device is in the open configuration and when the electronic device is in the closed configuration the ambient light sensor is covered; and a control circuit operative to receive an output from the ambient light sensor and configured to control the brightness of a first illuminator in response to ambient light when the electronic device is in the open position and the brightness of a second illuminator in response to ambient light when the electronic device is in the closed position, wherein the first illuminator is configured on the surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling the brightness of at least one illuminator of an electronic device, the electronic device configured to provide an open position and a closed position, the method comprising:
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sensing ambient light using an ambient light sensor configured on a surface of the electronic device such that the ambient light sensor is exposed when the electronic device is in the open configuration and when the electronic device is in the closed configuration the ambient light sensor is covered; using the output of the ambient light sensor to control the brightness of the at least one illuminator when the electronic device is in the open position; providing a path for at least some ambient light to reach the ambient light sensor when the electronic device is in the closed position; and adjusting the sensitivity of the ambient light sensor when the electronic device is in the closed position by scaling the output of the ambient light sensor. - View Dependent Claims (11, 12, 13, 14)
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15. A computer system, the computer system configured to provide an open position and a closed position, the computer system comprising:
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a display located on an inner surface of the computer system such that the display is exposed when the computer system is in the open configuration and enclosed by the computer system when the computer system is in the closed configuration; at least a first illuminator located on an outer surface of the computer system; and an ambient light sensor located on the inner surface of the computer system such that the ambient light sensor is exposed when the computer system is in the open configuration and when the computer system is in the closed configuration the ambient light sensor is covered, the ambient light sensor configured to control the brightness of the display when the computer system is in the open position and the brightness of the first illuminator when the computer system is in the closed position. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification