Digital signal linearizer

Details Digital signal linearizer Digital signal linearizer

1974-01-09

1976-02-17

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

73362AR, 324 99D, 340347AD, H03K 1302, H03K 1320

Patent

active

039394590

ABSTRACT:
A digital signal linearizer for obtaining a linear digital output from a non-linear input. The output voltage of a thermocouple is converted to a train of pulses by a dual slope analog to digital converter. The number of pulses in the pulse train is proportional to the voltage and is linearized by a pulse rate multiplier programmed to vary over successive ranges of pulse counts corresponding to linear segments approximating the non-linear characteristic relating temperature and voltage. The linearized pulse train out of the multiplier is counted and displayed directly in temperature units.

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patent: 3617885 (1971-11-01), Wheable
patent: 3662163 (1972-05-01), Miller et al.
patent: 3668691 (1972-06-01), Sergo
patent: 3685048 (1972-08-01), Pincus
patent: 3686665 (1972-08-01), Elias et al.
patent: 3699318 (1972-10-01), Underkoffler et al.
patent: 3701145 (1972-10-01), Bergin
patent: 3793630 (1974-02-01), Meijer
patent: 3824585 (1974-07-01), Meijer
Kollataj et al., "INTEGRATED CIRCUITS - - - ," Electronics, 3/1968, pp. 112-121.
Johnson, "DIGITAL SYSTEM - - -," Electronics, 3/1965, pp. 102-107.
Millman and Taub, "Pulse and Digital Circuits," McGraw-Hill Book Co., 1956, pp. 323-327.

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