US Patent 8411256 Distance measuring apparatus and control method thereof

Patent 8411256 was granted and assigned to Asia Optical International Ltd. on April, 2013 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Asia Optical International Ltd.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

84112560

Patent Inventor Names

Kuo-Jui Sun0

Jen-Hung Wu0

Date of Patent

April 2, 2013

Patent Application Number

126416480

Date Filed

December 18, 2009

Patent Primary Examiner

‌

Mark Hellner

Patent abstract

The invention provides a distance measuring apparatus for measuring distance to a target, having: a light emitter for emitting a measuring light; a light receiving system for receiving a reflected light reflected from the target and outputting a sensing signal; a comparator having a reference signal input terminal for receiving a reference signal, a sensing signal input terminal for receiving the sensing signal, and a comparison result signal output terminal for outputting a comparison result signal according to comparison results between the reference signal and the sensing signal; and a process and control module for providing the reference signal to the reference signal input terminal of the comparator and adjusting the reference signal according to the comparison signal.