GPS device and method for reducing light emitted by display
First Claim
Patent Images
1. A GPS device allowing for reducing emitted light, the GPS device comprising:
- (a) a GPS unit including a receiver and an antenna for receiving signals from each of a plurality of sources and, based on the received signals, determining a geographic location of the GPS device;
(b) an input interface for allowing a user to select a second display mode;
(c) a processor for converting display information to the second display mode, wherein the second display mode emits less light than a first display mode; and
(d) an output display for displaying the display information.
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Abstract
A GPS device and method for converting display information between a first display mode and a second display mode by negativizing pixels or other image elements, wherein negativizing entails converting relatively larger areas of lighter image elements to darker image elements and converting relatively smaller areas of darker image elements to lighter image elements so as to result in reduced total emission of light.
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Citations
8 Claims
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1. A GPS device allowing for reducing emitted light, the GPS device comprising:
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(a) a GPS unit including a receiver and an antenna for receiving signals from each of a plurality of sources and, based on the received signals, determining a geographic location of the GPS device; (b) an input interface for allowing a user to select a second display mode; (c) a processor for converting display information to the second display mode, wherein the second display mode emits less light than a first display mode; and (d) an output display for displaying the display information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A GPS device allowing for reducing emitted light associated with displaying information, the GPS device comprising:
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(a) a GPS unit including a receiver and an antenna for receiving signals from each of a plurality of sources and, based on the received signals, determining a geographic location of the GPS device; (b) an input interface for allowing a user to select a second display mode with a single actuation of a dedicated selection device, wherein the second display mode emits less light than a first display mode; (c) a processor for converting display information to the second display mode by converting at least a portion of any lighter image elements to darker image elements and at least a portion of any darker image elements to lighter image elements; and (d) an output display for displaying the display information in the selected display mode.
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8. In a GPS device having a GPS unit including a receiver and an antenna for receiving signals from each of a plurality of sources and, based on the received signals, determining a geographic location of the GPS device;
- an input interface;
a processor; and
an output display, the improvement comprising;the input interface allowing a user to select a first display mode or a second display mode; and the processor converting display information to the second display mode in response to the user'"'"'s selection of the second display mode, wherein the second display mode emits less light than the first display mode when the display information is displayed on the output display.
- an input interface;
Specification