Repeater for transmission lines
US3989906A · kind A · utility
9Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1975 |
| Grant date | Nov 2, 1976 |
| Priority date | — |
| Expiry date | Mar 20, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A circuit for varying the amplification afforded to a-c signals transmitted through a transmission line in accordance with the length of that transmission line. Circuitry is provided which establishes a control signal which is a function of the a-c losses of the transmission line. This control signal is applied to an amplifying network which varies the amplification of signals transmitted through the transmission line in accordance with the magnitude of that control signal, and thereby automatically adjusts the repeater for operation with any transmission line to which it is connected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.