Optical module for recognizing page of electronic book
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United States of America Patent
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Issued Date -
Mar 22, 2007
app pub date -
Sep 19, 2005
filing date -
Sep 19, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to an optical module for recognizing the pages of an electronic book. The optical module of the invention comprises: at least one light source, a plurality of reflective layers, at least one light sensor and a page recognizing device. The light source is used for generating emitting light and is mounted on a cover of the electronic book. The reflective layers are used for reflecting the emitting light, and each reflective layer is mounted on one of pages of the electronic book. The light sensor is used for receiving the reflective light from the reflective layers and outputting a corresponding signal. The page recognizing device is used for recognizing a current page of the electronic book according to the corresponding signal. According to the invention, the different reflective area on the different reflective layer is used to reflect the different reflective light, so the electronic book can recognize the page which the user currently opens. Because the reflective area can be precisely controlled to reflect the exact reflective light, the page recognizing device can precisely recognize the current page.
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