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 substantially 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
15 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 substantially 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 substantially 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. A method of reducing light emitted by a GPS device, the method comprising the steps of:
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(a) receiving an input corresponding to a user'"'"'s selection of a second display mode;
(b) converting display information to the second display mode, wherein the second display mode emits substantially less light than a first display mode; and
(c) displaying the display information. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of reducing emitted light associated with displaying information on a GPS device, the method comprising the steps of:
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(a) receiving an input corresponding to a user'"'"'s selection of a second display mode, wherein the second display mode emits substantially less light than a first display mode;
(b) 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
(c) displaying the display information in the selected second display mode. - View Dependent Claims (15)
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Specification