Electronic display device automatically turns on or off according to whether a user in front of the display
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United States of America Patent
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Aug 19, 2014
Grant Date -
May 23, 2013
app pub date -
Nov 29, 2011
filing date -
Nov 21, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic display device detects whether a user is in front of a display via a camera according to a first frequency in a working mode of the electronic display device. If the electronic display device detects that the user is not in front of the display for a first predefined time period, the electronic display device enters a power saving mode by turning off the display. The electronic display device detects whether the user is in front of the display again via the camera according to a second frequency in the power saving mode. The electronic display device reduces the second frequency after the user is not in front of the display for a second predefined time period. The electronic display device enters the working mode by turning on the display when detecting that the user is in front of the display again.
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