Signal transmission circuit with improved digital signal recovery
US4160157A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1976 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | Dec 20, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/5057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A feedback circuit and method are disclosed for restoring high frequency digital signals degraded by signal transmitting means whose upper frequency limit is below that required for accurate signal transmission. The restored digital output signal is supplied by a digitizing circuit which produces a signal having first and second values in response to input signal amplitudes respectively less than and greater than a digitizing threshold. The input signal to the digitizing circuit comprises a combination of the degraded signal, and a feedback signal generated by passing the output signal through a feedback circuit whose response to high frequency signals is substantially identical to that of the signal transmitting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.