System and method for detecting an object using pulsed light
First Claim
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1. A method for detecting an object, comprising:
- emitting a light pulse;
receiving a reflection of said light pulse;
indicating a presence of the object from said received light pulse; and
,adjusting sensitivity of said indicating step based on an elapsed time from said emission.
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Abstract
A system and method for detecting an object is provided. The method includes emitting a light pulse. The method further includes receiving a reflection of the light pulse. The method further includes indicating a presence of the object from the received light pulse. Finally, the method includes adjusting sensitivity of the indicating step based on an elapsed time from the emission.
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Citations
18 Claims
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1. A method for detecting an object, comprising:
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emitting a light pulse; receiving a reflection of said light pulse; indicating a presence of the object from said received light pulse; and
,adjusting sensitivity of said indicating step based on an elapsed time from said emission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting an object, comprising:
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emitting a plurality of light pulses; receiving a reflection of said light pulses; indicating a presence of the object from said received light pulses; and
,adjusting sensitivity of said indicating step based on a travel time of said pulses. - View Dependent Claims (11)
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12. A system for detecting an object, comprising:
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a light source generating a light pulse, said light pulse being emitted; a light detector configured to receive a reflection of said pulse; and
,a controller operably connected to said light source and said detector, said controller configured to indicate a presence of the object from said received light pulse, said controller further configured to adjust sensitivity for detecting the object based on an elapsed time from said emission. - View Dependent Claims (13, 14, 15)
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16. An article of manufacture, comprising:
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a computer storage medium having a computer program encoded therein for detecting an object, said computer storage medium comprising; code for inducing a light transmitter to emit a light pulse; code for storing vaiues indicative of a reflection of said light pulse; code for indicating a presence of the object from said stored values; and
,code for adjusting sensitivity for detecting the object based on elapsed time from said emission.
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17. A method for detecting an object, the method comprising:
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emitting a light pulse; receiving a reflection of the light pulse; and indicating presence of the object when a power level of the received light pulse exceeds a signal threshold that decreases based on elapsed time from the emission.
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18. A method for detecting an object, the method comprising:
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emitting a light pulse; receiving a reflection of the light pulse; indicating presence of the object when a power level of the received light pulse multiplied by a signal gain that increases with elapsed time from emission is greater than a detection threshold.
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Specification