Enhanced line powered amplifier
US5504811A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Dec 29, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An enhanced amplifier for interconnecting a two-wire, bidirectional cable side transmission path and a two-wire bidirectional equipment side transmission path in a communication system includes a first splitter and a second splitter. The first splitter is formed of a cable-to-equipment voltage sense amplifier, a shunt current driver, and a series current compensator for generating a first simulated terminating impedance. The second splitter is formed of an equipment-to-cable voltage sense amplifier, the shunt current driver and the series current compensator for generating a second simulated terminating impedance. Other features disclosed include manual balancing circuitry for manually adjusting the cable side balance networks. Further, a loopback circuit is provided form facilitating remote testing and alignment of the amplifier from the cable side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.