Superconducting analog-to-digital converter with bidirectional counter
US4646060A · kind A · utility
20Cited by
2References
13Claims
0Family size
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Key dates
| Filing date | Sep 7, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Sep 7, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/827
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog-to-digital converter quantizer and bidirectional counter using superconducting quantum interference devices (SQUID's) as the principal elements. A double-junction non-latching SQUID is used as a quantizer to produce unipolar output pulses on two different output lines, indicative of positive and negative increments of change in an analog signal current. The unipolar pulses are then counted in a bidirectional counter that employs double-junction non-latching SQUID's as counter stages and as logic gates for the propagation of carry and borrow signals from stage to stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.