Angle comparison device

Details Angle comparison device Angle comparison device

1980-12-17

1983-10-18

Ruggiero, Joseph F.

Boots, shoes, and leggings

340347DA, 364606, 364815, G06J 100, G06G 722

Patent

active

044109539

ABSTRACT:
Apparatus for providing an analogue output which is a trigonometrical function of the sum of an analogue angle input .theta. and a digital angle input .phi. comprises multiplying means for multiplying sines and cosines of the two angles to produce signals representing sin .theta. cos .theta. and sin .phi. cos .theta. and/or cos .theta. cos .phi. and sin .theta. sin .phi..

REFERENCES:
patent: 3558863 (1971-01-01), Williams, Jr. et al.
patent: 3868680 (1975-02-01), Rhodes
patent: 3974367 (1976-08-01), Mayer
patent: 4090244 (1978-05-01), Altwein
patent: 4138729 (1979-02-01), Bayer et al.

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