Switchable signal source module for use with cable television converter
US4783846A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Jun 4, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/765
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Remotely switchable signal source modules are mounted to a cable television converter to enable a viewer to select between alternate television signal sources. Power for the module is provided via the converter's RF input terminal, which mates with a corresponding terminal on the module. An RF bypass module enables the viewer to utilize the features of a cable ready television when connected to a cable television network. Simultaneous viewing and recording of different channels can also be accommodated. An input A/B switch module enables the viewer to select between alternate cable system inputs. An output A/B switch module provides compliance with FCC requirements permitting viewing of off-the-air channels not carried on a cable system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.