Digital to analog resolver converter

Details Digital to analog resolver converter Digital to analog resolver converter

1975-10-08

1978-06-27

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347M, 340347DA, 318600, 364608, H03K 1302

Patent

active

040978583

ABSTRACT:
A digital to analog resolver converter uses a digital to analog converter to convert a part of the digital input to a corresponding analog angle value. This analog angle value is applied to sine and cosine function generators which use bits of the digital input signal to select slope and intercept values for approximating the sine and cosine of the analog angle value. The outputs of these function generators are applied to an octant select circuit, which chooses the values to be used as the sine and cosine of the angle in a particular octant. Two circuits then assign the proper sign to the cosine and sine function values.

REFERENCES:
patent: 3295125 (1966-12-01), Idelsohn et al.
patent: 3335417 (1967-08-01), Adler et al.
patent: 3662379 (1972-05-01), Miller et al.
patent: 3668693 (1972-06-01), Eaton et al.
patent: 3675234 (1972-07-01), Metz
patent: 3696407 (1972-10-01), Egerton
patent: 3713141 (1973-01-01), Higgins et al.
patent: 3987434 (1976-10-01), Endo et al.

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