Optical media sensing arrangement for a mobile telephone having internal and external media pathways
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United States of America Patent
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-
Oct 12, 2010
Grant Date -
Dec 11, 2008
app pub date -
Mar 26, 2008
filing date -
May 27, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides for an optical sensing arrangement for use in a mobile telephone. The sensing arrangement allows the telephone to decode tags of coded data printed on media present in internal and external pathways of the telephone. The sensing arrangement includes a beam splitter configured to deflect incoming light onto an image sensor of the telephone. The arrangement also includes a first infrared LED operatively directing light onto media present in the external pathway, with a filter and lens arrangement configured to receive and direct light reflected from the external media onto the beam splitter. Also included is a second infrared LED operatively directing light onto media present in the internal pathway, with a mirror arrangement configured to direct light reflected from the internal media into the beam splitter.
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