Multifunction rangefinder

Details Multifunction rangefinder Multifunction rangefinder

2007-02-27

2007-02-27

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S004020, C356S004030, C356S005010

Reexamination Certificate

active

10912358

ABSTRACT:
A multifunction rangefinder capable of measuring distance, compass location and altitude. A distance measurement unit capable of long and short distance measurements transmits a light beam to a target, receives a reflected light from the target and outputs a distance measurement signal. A compass measurement unit measures terrestrial magnetism and outputs a compass measurement signal. An altitude measurement unit measures atmospheric pressure to generate an altitude measurement signal. A microprocessor calculates a distance between the target and the multifunction rangefinder, altitude and the compass location of the target according to the distance, altitude and compass measurement signals respectively.

REFERENCES:
patent: 5798733 (1998-08-01), Ethridge
patent: 6310682 (2001-10-01), Gavish et al.

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