Calibration of a scanning light interrupt type of data input int

Details Calibration of a scanning light interrupt type of data input int Calibration of a scanning light interrupt type of data input int

1985-12-16

1987-02-10

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

356375, 2504911, G08C 2100

Patent

active

046424229

ABSTRACT:
Correlation of light beam movement with electrical timing in a light beam interrupt data input interface device is provided by determining the magnitude of an angular difference between the electrical system and a line through the scanning axis for use as a correction factor. The correlation principle involves a combination of measurement with respect to the electrical system and the application of geometric principles to provide a correction factor.

REFERENCES:
patent: 3613066 (1971-10-01), Cooreman
patent: 4294543 (1981-10-01), Apple et al.
patent: 4553842 (1985-11-01), Griffin
patent: 4558313 (1984-11-01), Garwin et al.
patent: 4568182 (1986-02-01), Modjallal

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