Passive-active terminal adapter and method having automatic return loss control
US9363469B2 · kind B2 · utility
3Cited by
118References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2008 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
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.