Circuit for broadband video transmission over unshielded twisted wire pairs
US5420551A · kind A · utility
18Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/108
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a circuit which permits transmission of broadband analog CATV video signals on unshielded twisted wire pairs. The circuit includes an autotransformer with a ground connection coupled to the node between two secondary windings. The two opposite ends of the secondary windings are coupled to a choke, which, in turn, is coupled to an isolation transformer with a center-tapped primary and secondary winding for shunting any remaining common-mode currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.