Patent · US Expired

Increment sensing with three beam mark detection

US4673810A · kind A · utility

13Cited by

2References

11Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Alfred Babsch · Blaustein, DE
Dieter Beth · Langenau, DE
Werner Panzer · Senden, DE
Johann Stempfle · Brackenheim, DE

Key dates

Filing date	May 15, 1985
Grant date	Jun 16, 1987
Priority date	—
Expiry date	May 15, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/36
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to the digital control of a machine or equipment, particularly but not exclusively a matrix printer under utilization of an increment step sensor monitor or pick up operating on the basis of optic electronic principles and including at least one source of radiation and at least two pickup transducers disposed in the ray path from the source of illumination and further including a marker track composed of alternating transparent or translucent and opaque increments being unilinearly moveable, either on a curved or on a straight path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.