Non-linear type digital-to-analog converter

Details Non-linear type digital-to-analog converter Non-linear type digital-to-analog converter

1975-10-20

1977-12-06

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347M, 84 124, 364857, H03K 1302

Patent

active

040620131

ABSTRACT:
A non-linear type digital-to-analog converter comprising a decoder, control switching circuits controlled respectively by the outputs of the decoder, and an exponential function generating circuit whose analog outputs are selectively produced by the operation of the control switching circuits. An input digital representation is converted to an analog voltage output which is exponentially related to the input.

REFERENCES:
patent: 3832707 (1974-08-01), Buchanan et al.
patent: 3886834 (1975-06-01), Okamoto
patent: 3905028 (1975-09-01), Wintz et al.
patent: 3943466 (1976-03-01), Lyghounis
patent: 3984829 (1976-10-01), Zwack
Harrison, "Logarithmic Digital to Analog Converter," IBM Technical Disclosure Bulletin, vol. 5, No. 5, 10/1962, pp. 30, 31.
Analog Devices, Inc., "Analog-Digital Conversion Handbook," 6/1972, pp. II-36 to II-38.
Landee et al., "Electronic Designers" Handbook, McGraw-Hill Book Co., 1957, pp. 23-31.
Analog Devices, Inc., Analog-Digital Conversion Handbook, 6/1972, pp. I-2 to I-5; III-18 to III-42.

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