Electronic device with auto-positioning virtual image display and associated method
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United States of America Patent
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Dec 25, 2001
Grant Date -
N/A
app pub date -
Dec 17, 1998
filing date -
Dec 17, 1998
priority date (Note) -
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Abstract
A gravity switch and a microprocessor are disposed in an electronic device having a virtual image display. The gravity switch provides a determination of the electronic device's orientation to the microprocessor. The microprocessor provides a display signal to the virtual image display based on the orientation of the electronic device. The microprocessor rotates the input from a display interface based on the orientation of the electronic device. The microprocessor includes a time hysteresis to prevent inadvertent changes to the image orientation due to momentary movements of the electronic device.
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