Reference mark designating system for incremental position measu

Details Reference mark designating system for incremental position measu Reference mark designating system for incremental position measu

1981-09-21

1985-01-01

Chan, Eddie P.

Boots, shoes, and leggings

250237G, H01J 314

Patent

active

044919280

ABSTRACT:
A position measuring instrument of the type having a scale and a scanning unit is provided with a plurality of reference marks on the scale. An identification mark is associated with each reference mark, and each identification mark is uniquely coded. The scanning unit operates to read the identification marks and to generate identification signals which are applied to a comparator or to a computer. The comparator or computer compares the identification signal corresponding to each reference mark with a set of designation signals. Only if a correspondence is found between the identification signal and one of the designation signals is the reference mark allowed to go into operation. Thus, by merely changing the designation signals electronically, any desired subset of a total number of reference marks can be enabled. The selected reference marks can readily be changed electronically without physical manipulation of the measuring instrument.

REFERENCES:
patent: 3261967 (1966-07-01), Rosin et al.
patent: 3676652 (1972-07-01), Millis, Jr. et al.
patent: 3681582 (1972-08-01), Kimio et al.
patent: 3838251 (1974-09-01), Herrin
patent: 3882301 (1975-05-01), Nassimbene
patent: 3982106 (1976-09-01), Stutz
patent: 4044227 (1977-08-01), Holm et al.
patent: 4086478 (1978-04-01), Okano
patent: 4101764 (1978-07-01), Nelle
patent: 4158229 (1979-06-01), Woo, Jr. et al.
patent: 4158509 (1979-06-01), Rieder et al.
patent: 4250554 (1981-02-01), Blum et al.
patent: 4363964 (1982-12-01), Schmitt
patent: 4385836 (1983-05-01), Schmitt
patent: 4400890 (1983-08-01), Ohkubo et al.
patent: 4403859 (1983-09-01), Ernst

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