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:
Sep. 12, 2006
Filed:
Jun. 24, 2004
Jui-feng Huang, Tanzih, Taichung, TW;
Lung-pin Chung, Tanzih, Taichung, TW;
Kuo-hua Yang, Tanzih, Taichung, TW;
Ai-ling Lin, Tanzih, Taichung, TW;
Jui-Feng Huang, Tanzih, Taichung, TW;
Lung-Pin Chung, Tanzih, Taichung, TW;
Kuo-Hua Yang, Tanzih, Taichung, TW;
Ai-Ling Lin, Tanzih, Taichung, TW;
Asia Optical Co., Inc., Taichung, TW;
Abstract
A Rangefinder capable of long and short distance measurement in company with compass measurement. The rangefinder includes distance measurement unit, a compass sensing unit and a processor. The rangefinder can selectively execute a comparison mode or a gain mode. The comparison mode is executed during short-distance measurement and the gain mode is executed during long-distance measurement. The compass measurement unit senses a terrestrial magnetism to obtain first and second magnetic sensing signals. The processor estimates a distance between the target and the rangefinder according to the measurement signal from the distance measurement unit and determines a compass orientation of the target according to the first and second magnetic sensing signals.