TV antenna isolation system
US4267529A · kind A · utility
17Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1980 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Feb 11, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H1/0007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus for coupling a source of signals to a receiver having a ground return electrically coupled to the AC line and for providing immunity from interfering ambient signals. The apparatus includes a coaxial transmission line surrounded at both ends by feedthrough capacitor coupling the outer conductor of the transmission line to the ground return of the signal source. A toroidal ferrite member also surrounds the transmission line between the feedthrough capacitors thereby reducing the current flowing in the outer conductor and the resulting direct pickup of ambient signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.