Surveying instrument and method of controlling a surveying...

Details Surveying instrument and method of controlling a surveying... Surveying instrument and method of controlling a surveying...

2007-06-25

2009-12-29

Patel, Ramesh B (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Digital positioning

C700S058000, C700S059000, C250S204000, C250S205000, C250S201200, C324S330000, C324S373000, C356S004100, C356S004030, C356S004070, C356S139100, C356S141100

Reexamination Certificate

active

07640068

ABSTRACT:
A surveying instrument performs tracking of a target by controlling an orientation of a measuring unit relative to the target in two different angular directions. The control in one angular direction is based on detected light intensities which are modulated according to a first time pattern, and control of the orientation in the other angular direction is based on detected light intensities modulated according to a second time pattern just different from the first time pattern.

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European Search Report pertaining to EP 06013742.9 dated Dec. 18, 2006.

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