Detection device for detecting conditions at a target position

Details Detection device for detecting conditions at a target position Detection device for detecting conditions at a target position

2006-04-18

2009-10-20

Tarcza, Thomas H (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S005040

Reexamination Certificate

active

07605909

ABSTRACT:
An object of the present invention is to provide a detection device which does not cause the false detection by receiving laser light from an oncoming car.The pulse laser light modulated with a modulation pattern set every target position is irradiated at the target position from a laser irradiation portion. DSP (Digital Signal Processor) decides that there is an obstacle at the target position only when the modulation pattern of the pulse laser light emitted from the laser emitting portion matches with the modulation pattern of the pulse laser light received by the laser receiving portion. It is suppressed that the detection device misdetects the conditions of the target position when receiving laser light from an oncoming car or the like because modulation pattern of laser light from own does not match with modulation pattern of laser light from the oncoming car or the like.

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Japanese Notification of Reasons for Refusal, with an English translation thereof, issued in Patent Application No. 2005-132945 dated on Aug. 19, 2008.

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