High resolution shaft position encoder

Communications: electrical – Audible indication – Percussion-type sound producer

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250231SE, 34087029, G08C 900

Patent

active

043587534

ABSTRACT:
An absolute-incremental hybrid shaft position encoder providing compacted high resolution. In the preferred embodiment an encoder track is superimposed by a shutter so as to make multiple track revolutions appear electrically as a single revolution.

REFERENCES:
patent: 2961647 (1960-11-01), Dzaack
patent: 3024986 (1962-03-01), Strianese
patent: 3122735 (1964-02-01), Townsend
patent: 3188626 (1965-06-01), Palmer
patent: 3242478 (1966-03-01), Kaestmer
patent: 3323120 (1967-05-01), Uehlin
patent: 3419727 (1968-12-01), Pabst
patent: 3525094 (1970-08-01), Leonard
patent: 3581306 (1961-05-01), Johnson
patent: 3612393 (1971-10-01), Jones
patent: 4041483 (1977-08-01), Groff
Knox, "IBM Technical Disclosure Bulletin", vol. 2, No. 3, Oct. 1959, pp. 18-19.

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