Regeneration of signalling pulses
US3985970A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1975 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Apr 11, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Regeneration of distorted signalling pulses is obtained by means of a Schmitt trigger which is fired when the input pulse has varied by a preset value .DELTA.V the maximum voltage of said pulse being stored in a memory device so as to maintain the trigger in the present state. The trigger is switched back during the trailing edge of the pulse when the signal has varied by the same preset value .DELTA.V through inhibition of the memory device. The regeneration meets C.C.I.T.T. R2 regulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.