Superconducting noise discriminator
US5041415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Feb 16, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A noise limiter for a binary circuit in which a thin film superconductor is put in shunt between a transmission line and ground. The thin film exhibits a gradual transition region as a function of current between normal conduction and the completely superconductive state. The dimensions of the thin film are chosen such that a high level signal on the transmission line falls in the gradual transition region and the impedance of the shunt is greater than the characteristic impedance of the transmission line while a noise component on the low level signal falls in the superconductive region and therefore is reflected by the zero-impedance shunt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.