Scanning system for digital-analog converter

Details Scanning system for digital-analog converter Scanning system for digital-analog converter

1974-04-03

1976-03-02

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

235 92DM, 235 92SH, 235165, 307221R, H03K 1302

Patent

active

039421716

ABSTRACT:
A digital scanning system for a digital to analog converter. The scanning system includes an information counter for storing a plurality of digital bits I1, I2, I3....IN, with bit I1 being the most significant bit and bit IN being the least significant bit. Logic gates are connected between the information and interconnected shift registers. A clock applies clock frequency signals to the shift registers such that the digital bits are output in the periodic sequence I1, I2, I1, I3, I1, I2, I1, I4, I1, I2, I1, I3, I1...I1, I2, I1, IN. The periodic sequence of digital bits is applied to an integrator which outputs a voltage level representative of the periodic sequence.

REFERENCES:
patent: 2907021 (1959-09-01), Woods
patent: 3110894 (1963-12-01), Murgio
patent: 3230353 (1966-01-01), Greene et al.
schmid, "Electronic Analog/Digital Conversions," Van Nostrand Reinhold Co., 7/1971, pp. 206-216.

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