Subscriber power module for CATV customer interface equipment
US6836898B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/104
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CATV system has a multitude of customer interfaces which include an external unit and an internal unit. The units includes equipment for signal conditioning, cable to telephone interface, and/or cable to computer interface. The internal unit is provided with power by the customer, and the power is used to operate the equipment of the units. The customer supplied power is isolated from the power distributed in the cable television system. Preferably, the customer supplied power is conducted through the coaxial television cable between the internal unit and the external unit. The invention reduces power consumption and allows such customer interfaces to be easily added to existing and future cable systems without overwhelming the existing AC power distribution system of the cable television network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.