The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2009
Filed:
Aug. 20, 2003
Seok-hwan Lee, Incheon, KR;
Jae-young Lee, Seoul, KR;
Ki-choul Nam, Seongnam, KR;
Kyung-mok Kang, Incheon, KR;
Geun-sik Yoo, Incheon, KR;
Seok-Hwan Lee, Incheon, KR;
Jae-Young Lee, Seoul, KR;
Ki-Choul Nam, Seongnam, KR;
Kyung-Mok Kang, Incheon, KR;
Geun-Sik Yoo, Incheon, KR;
A&D Engineering Co., Ltd, Daerim-Dong, Yeongdeungpo-gu, Seoul, KR;
Abstract
Disclosed is a laser rangefinder and method thereof. By using characteristics that noise has non-correlation and signals have correlation, laser beams are output to a target to find a range to the target with iteration rates of thousands of times per second, signals for each range-finding are binary-quantized using a sampling frequency corresponding to a range-finding resolving power, and data are accumulated. After this, the accumulated data are processed in a statistical manner to detect a target signal and produce a target range based on the target signal. According to the present invention, the rangefinder for outputting low-power laser beams, using the laser beams reflected from the target, and detecting a range to the target, easily and accurately detects target signals in the noise.