Successive-approximation analog-to-digital converter using Josep

Details Successive-approximation analog-to-digital converter using Josep Successive-approximation analog-to-digital converter using Josep

1974-08-28

1976-04-06

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

307245, 307277, 307306, H03K 1302

Patent

active

039493954

ABSTRACT:
A comparison means has plural Josephson devices each controlled by an analog input current and an opposing subtraction current. A subtraction means has a series circuit of Josephson devices arranged in groups, each group being switched by one of the comparison devices. The subtraction current is proportional to the number of devices switched in the series circuit. An output means has a string of Josephson devices each providing an output bit from one of the comparison devices. Fixed bias currents control the effective thresholds of the comparison devices.

REFERENCES:
patent: 3050721 (1962-08-01), Anderson
patent: 3259844 (1966-07-01), Casimir
patent: 3386089 (1968-05-01), Meiklejohn
patent: 3419712 (1968-12-01), Green
patent: 3466470 (1969-09-01), Rowell

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