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US Patent 8194031 Backlight control of electronic device

Patent 8194031 was granted and assigned to Apple (company) on June, 2012 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Current Assignee
Apple (company)
Apple (company)
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
81940311
Patent Inventor Names
Wei Yao1
Wei Chen1
Date of Patent
June 5, 2012
1
Patent Application Number
129095361
Date Filed
October 21, 2010
1
Patent Citations Received
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US Patent 12117684 Display unit with orientation based operation
2
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US Patent 12007637 Display unit with orientation based operation
3
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US Patent 12022635 Fan control for electronic display assemblies
4
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US Patent 12027132 Display units with automated power governing
5
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US Patent 12105370 Fan control for electronic display assemblies
6
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US Patent 12118953 Display units with automated power governing
7
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US Patent 11656255 Measuring power consumption of a display assembly
8
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US Patent 11656498 Optical sheet tensioning device
9
...
Patent Primary Examiner
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My-Chau T. Tran
1
Patent abstract

Embodiments are provided herein which may be utilized to eliminate stray light emissions from an LED while ambient light is being sensed. As such, dynamic backlight control systems for use with an electronic display are presented including: an ambient light sensor for sensing ambient light intensity; a backlight for illuminating the electronic display; a switch for controlling the backlight, the switch configured to set a backlight condition to ON or OFF in response to a backlight-off frequency such that the ambient light sensor senses the ambient light intensity in the absence of the backlight; a logic module for determining a backlight level in response to the ambient light intensity; and a backlight control circuit for adjusting the backlight to the backlight level in response to the ambient light intensity.

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