Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Discharge control discharge device load controlled by the...
Reexamination Certificate
2004-10-27
2010-10-05
Vu, David Hung (Department: 2821)
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Discharge control discharge device load controlled by the...
C315S158000, C315S159000, C345S102000
Reexamination Certificate
active
07808185
ABSTRACT:
A method in a portable electronic device (100) having a user interface illumination (110) is disclosed. The method comprises sensing (202) an ambient light level in a neighborhood of the portable electronic device with a sensor (104) of the portable electronic device. Based on the ambient light level sensed, then controlling (204) a visual characteristic of the user interface illumination, wherein the user interface illumination is operated at a brightness between a maximum brightness and a minimum brightness for at least one ambient light level detected.
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Allore Joseph L.
Cox Daniel B.
Ng Richard
Cunningham Gary J.
Motorola Inc.
Vu David Hung
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