04649504 is referenced by 270 patents and cites 22 patents.

A non-contact sensing system for monitoring the position and orientation of a rigid body in space having at least three distinct point light sources mounted on the rigid body. At least two position sensor heads are fixedly mounted within detection range of light from the light sources, each position sensor head having a position sensitive detector. The lights are illuminated one at a time and in sequential arrangement and a processor computes the position in three-dimensional space of an illuminated light source with data provided simultaneously by both position sensitive detectors. The processor means also computes the position of the object in all six degrees of freedom using the three-dimensional positional data of all three light sources.

Title
Optical position and orientation measurement techniques
Application Number
6/613063
Publication Number
4649504
Application Date
May 22, 1984
Publication Date
March 10, 1987
Inventor
Jaroslav Svoboda
Hudson Heights
CA
Gordon M McKinnon
Montreal
CA
Nicholas Krouglicof
Montreal West
CA
Agent
Schwartz Jeffery Schwaab Mack Blumenthal & Evans
Assignee
CAE Electronics
CA
IPC
G01B 11/26
G09G 3/02
G06G 7/48
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