Coarse/fine digital pattern combiner for high accuracy

Details Coarse/fine digital pattern combiner for high accuracy Coarse/fine digital pattern combiner for high accuracy

1981-09-10

1983-03-22

Miller, C. D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, H03K 1302

Patent

active

043778070

ABSTRACT:
A rotary shaft position measurement system using digital position detectors roviding coarse and fine binary word readouts having four overlapping bits all of which are having subtractively compared to provide command signals that are used to correct the non-overlapping portion of the coarse word prior to combining with the fine word. The comparator utilizes a binary four bit full adder in combination with coarse word input inversion, and direct and inverted application of the carryout and .SIGMA.4 outputs to first and second AND gates to generate coarse word correction commands.

REFERENCES:
patent: 2630552 (1953-03-01), Johnson
patent: 2630562 (1949-04-01), Johnson
patent: 2779539 (1954-04-01), Darlington
patent: 2885613 (1959-05-01), Myracle et al.
patent: 3096444 (1963-07-01), Seward
patent: 3534360 (1966-12-01), Hafle
patent: 3603978 (1969-07-01), Narukiyo
patent: 3614774 (1968-05-01), Clements
patent: 3675235 (1972-07-01), Wayman
patent: 3855585 (1974-12-01), Stout

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