Reference signal generation apparatus for position detector

Details Reference signal generation apparatus for position detector Reference signal generation apparatus for position detector

G - Physics

08

C

340/136.3

G08C 21/00 (2006.01) G01D 5/245 (2006.01) G01D 5/36 (2006.01) H03M 1/30 (2006.01)

Patent

CA 1300245

ABSTRACT OF THE DISCLOSURE A reference signal generation apparatus for a position detector is disclosed in which a plurality of signals having peaks at predetermined intervals are produced from the light transmitted through slit rows of random patterns and a plurality of light detectors for detecting the same light, thereby producing a reference signal in the vicinity of maximum and minimum values of the difference signal between the output signals of the light detectors.

566534

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