Digital second-order clock linearizer

Details Digital second-order clock linearizer Digital second-order clock linearizer

1975-10-22

1977-06-21

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

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

Patent

active

040315304

ABSTRACT:
In order to obtain a very close fit to the characteristic curve of a non-linear sensor, such as a thermocouple, a linearized clock is developed and used to increment a counter during a time period representative of the sensor output. The linearized clock is obtained by passing a precision clock signal through a first synchronous binary rate multiplier which receives rate information from an up/down counter. The up/down counter is incremented or decremented by the output from a second synchronous binary rate multiplier which receives rate information from a programmable read only memory in accordance with the segments of the sensor's characteristic curve through which the time scan may be deemed to be passing.

REFERENCES:
patent: 3349390 (1967-10-01), Glassman
patent: 3662163 (1972-05-01), Miller et al.
patent: 3699318 (1972-10-01), Underkottler et al.
patent: 3824585 (1974-07-01), Meijer
patent: 3939459 (1976-02-01), Hoopes

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