Method of signal adjustment in an optical sensing device and the optical sensing device
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United States of America Patent
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Jun 23, 2015
Grant Date -
May 10, 2012
app pub date -
Mar 29, 2011
filing date -
Nov 10, 2010
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Abstract
A method of signal adjustment in an optical sensing device is provided. The optical sensing device includes a first optical sensor and a first reference optical sensor. The first optical sensor corresponds to a first specified ideal spectral response and generates a first output signal corresponding to light detected thereby. The first reference optical sensor generates a first reference signal corresponding to light detected thereby, and is disposed adjacent to the first optical sensor such that the light detected by the first reference optical sensor is substantially the light detected by the first optical sensor. The method includes the steps of: a) receiving the first output signal and the first reference signal; and b) generating a first adjusted output signal having a spectral response that approximates the first specified ideal spectral response, by adjusting the first output signal according to the first reference signal.
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