System and associated method for determining and transmitting po

Details System and associated method for determining and transmitting po System and associated method for determining and transmitting po

1994-08-15

1996-07-23

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

359154, 359186, 359189, G01C 308

Patent

active

055395139

ABSTRACT:
A system including a laser survey instrument for determining positional data of a selected target. The laser survey instrument generates optical pulses which are transmitted to and reflected from the selected target back to the survey instrument. The survey instrument determines the range to the selected target responsive to the transmission and reflection of the optical pulses. The survey instrument also determines horizontal and vertical angles between the survey instrument and the selected target. Values of the range and the horizontal and vertical angles form positional data. Once determined, the positional data is modulated upon the optical pulses to form an optical signal which is transmitted to a remote site. When the selected target is positioned at the remote site, the same optical pulses which are used to determine positional data are utilized to form the optical signal for transmission of the positional data, and the optical pulses can be utilized simultaneously in the determination of positional data and in the transmission of data to the selected target.

REFERENCES:
patent: 3727061 (1971-08-01), Dworkin
patent: 4584720 (1986-04-01), Garrett
patent: 4648133 (1987-03-01), Vilnrotter
patent: 5291262 (1994-03-01), Dunne
patent: 5408351 (1995-04-01), Huang
Hydro I fully Automated Range Azimuth Surveying System by International Measurement and Control Company, copyright 1994 or earlier.
Hydro II Poratable Hydrographic Survey System by Laser Technology, Inc., copyright 1994 or earlier.

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