Passive-active terminal adapter and method having automatic return loss control
US9769418B2 · kind B2 · utility
1Cited by
121References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 3, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6118
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Return loss due to excessive signal reflection into a cable television (CATV) network from an inoperative or abnormally operative terminal adapter is minimized, to communicate enhanced passive downstream signals to passive subscriber devices such as “life-line” telephone sets. A predetermined termination impedance is substituted for an active branch circuit of the terminal adapter whenever reduced input voltage, over-current or under-current conditions exist in the terminal adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.