Method and apparatus for monitoring bcd continuously varying dat

Details Method and apparatus for monitoring bcd continuously varying dat Method and apparatus for monitoring bcd continuously varying dat

1976-08-02

1978-07-18

Hartary, Joseph W.

Recorders

Combined with external recorder operating means

Well logging

235 92SH, 3401462, 364607, G01D 514

Patent

active

041019032

ABSTRACT:
Binary coded decimal continuously varying data is monitored by comparing the value of the least significant bit for each digit of each received digital word to the same bit value of the immediately preceding digital word and generating a pulse each time that that value changes and providing a composite pulse equal to the sum of the amplitudes of all coincident pulses to afford an easily readable visual display of the data.

REFERENCES:
patent: 2884616 (1959-04-01), Fillebrown
patent: 2910667 (1959-10-01), Lubkin
patent: 2976104 (1961-03-01), Petersen
patent: 2977574 (1961-03-01), Pouliart
patent: 3218609 (1965-11-01), Shaw
patent: 3484586 (1969-12-01), Jernakoff
patent: 3567916 (1971-03-01), Fullton
patent: 3573443 (1971-04-01), Fein
patent: 3991301 (1976-11-01), Chaprnka

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