Apparatus for reducing the scale factor variation for digital re

Details Apparatus for reducing the scale factor variation for digital re Apparatus for reducing the scale factor variation for digital re

1977-03-04

1978-12-19

Ruggiero, Joseph F.

Boots, shoes, and leggings

340347SY, G06J 100, H03K 1302

Patent

active

041308751

ABSTRACT:
In a digital-to-resolver type converter for generating sine and cosine functions over at least a predetermined angular range wherein variation of the scale factor from absolute value is remarkably improved by modification of the reference input wherein the sum of the sine and cosine signals are fed back in a positive sense, providing more than a 30 fold improvement in reduction of scale factor variation in one preferred embodiment.

REFERENCES:
patent: 3478198 (1969-11-01), Lewis et al.
patent: 3696407 (1972-10-01), Egerton, Jr.
patent: 3728719 (1973-04-01), Fish
patent: 3744050 (1973-07-01), Hedrick
patent: 3806917 (1974-04-01), Gronner et al.
Hodges - "Digital-to-Synchro Converter" - IBM Technical Disclosure Bulletin, - vol. 12, no. 10, Mar., 1970-pp. 1639-1640.

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