Subscriber line interface circuit
US7130416B2 · kind B2 · utility
0Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A subscriber line interface circuit (1′) for supplying line current (IL′) to a two-wire transmission line connected to a load (RL′), comprises a single current amplifier (3′). That single current amplifier (3′) is to be connected with its output terminal to one (B′) of the wires (A′, B′) of the transmission line, while the other wire (A′) of the transmission line is to be connected to a voltage source (V1′) that can be provided within the subscriber line interface circuit (1′) or external thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.