H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/90
H03M 1/00 (2006.01)
Patent
CA 1042554
SUCCESSIVE-APPROXIMATION ANALOG-TO-DIGITAL CONVERTER USING JOSEPHSON DEVICES Abstract of the Disclosure 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 hit from one of the comparison devices. Fixed bias currents control the effective thresholds of the comparison devices.
223587
International Business Machines Corporation
Na
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