Isolator/switching assembly for data processing terminal
US4243890A · kind A · utility
18Cited by
3References
9Claims
0Family size
Inventors
Key dates
| Filing date | Aug 23, 1976 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Aug 23, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure describes an isolator/switching assembly for use in a message terminal system. The assembly permits a pair of electronic data processors, one on-line and the other a back-up unit, each processing confidential or so called "red" data, to interface with each other and both units to interface with and control a common peripheral device or I/O port. At the same time, the assembly provides physical and electrical isolation between the processor and the peripheral device and insures the TEMPEST security of the entire system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.