Apparatus and method for automatically adjusting computer display parameters in response to ambient light and user preferences
First Claim
1. An apparatus to automatically adjust computer display parameters of a computer display in response to ambient light conditions, comprising:
- an ambient light sensor to obtain an ambient light signal;
a mapping mechanism connected to said ambient light sensor to select, using only said ambient light signal, a plurality of user-specified preference values in a corresponding plurality of user preference tables which establish user-specified preference settings for a range of light conditions;
a preference table alteration mechanism to store and change selected user-specified preference values within said plurality of user preference tables, said preference table alteration mechanism changing said selected user-specified preference values only when said user-specified preference settings are changed by a user; and
computer display control circuitry connected to said mapping mechanism to adjust said computer display parameters of said computer display in response to said user-specified preference values.
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Abstract
An apparatus to automatically adjust, in accordance with a set of user preferences, a computer display parameter, such as brightness or contrast, in response to ambient light conditions is described. The apparatus includes an ambient light sensor to obtain an ambient light signal. A mapping mechanism, connected to the ambient light sensor, maps the ambient light signal to a user preference value in a user preference table. Computer display control circuitry, connected to the mapping mechanism, then adjusts the selected computer display parameter of the computer display in response to the user preference value. A preferable embodiment of the invention includes colored light sensors that produce colored ambient light signals. The colored ambient light signals are mapped into colored preference tables. By adjusting the values in the colored preference tables, the image appearing on the computer display can be matched to a replica of the image printed on paper.
116 Citations
21 Claims
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1. An apparatus to automatically adjust computer display parameters of a computer display in response to ambient light conditions, comprising:
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an ambient light sensor to obtain an ambient light signal; a mapping mechanism connected to said ambient light sensor to select, using only said ambient light signal, a plurality of user-specified preference values in a corresponding plurality of user preference tables which establish user-specified preference settings for a range of light conditions; a preference table alteration mechanism to store and change selected user-specified preference values within said plurality of user preference tables, said preference table alteration mechanism changing said selected user-specified preference values only when said user-specified preference settings are changed by a user; and computer display control circuitry connected to said mapping mechanism to adjust said computer display parameters of said computer display in response to said user-specified preference values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of constructing an apparatus to automatically adjust computer display parameters of a computer display in response to ambient light conditions, said method comprising the steps of;
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providing an ambient light sensor to obtain an ambient light signal; providing a mapping mechanism connected to said ambient light sensor to select, using only said ambient light signal, a plurality of user-specified preference values in a corresponding plurality of user preference tables which establish user-specified preference settings for a range of light conditions; providing a preference table alteration mechanism to store and change selected user-specified preference values within said plurality of user preference tables, said preference table alteration mechanism changing said selected user-specified preference values only when said user-specified preference settings are changed by a user; and providing computer display control circuitry connected to said mapping mechanism to adjust said computer display parameters of said computer display in response to said user-specified preference values. - View Dependent Claims (15, 16)
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17. A method of automatically adjusting computer display parameters of a computer display in response to ambient light conditions, said method comprising the steps of:
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sensing an ambient light signal; mapping said ambient light signal to a plurality of user-specified preference values in a corresponding plurality of user preference tables which establish user-specified preference settings for a range of light conditions; changing selected user-specified preference values within said plurality of user preference tables only when said user-specified preference settings are changed by a user; and adjusting said computer display parameters of said computer display in response to said user-specified preference values. - View Dependent Claims (18, 19, 20, 21)
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Specification