Television signal equipment assignment matrix including passive switching
US5157508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television signal equipment assignment matrix comprises a plurality of ports respectively connected to video tape recorders and to edit controllers for the video tape recorders, passive switches for effecting connection between a selected two of the ports under control of an externally supplied control signal from an operator's control panel whereby an appropriate such control signal can cause a selected edit controller to be connected to a selected video tape recorder to enable it to be controlled by that edit controller and for commands and status reports to pass therebetween, a further switch for cyclically or randomly tapping the connections between the video tape recorders and the edit controllers to derive the commands and status reports, and a display for displaying indications in dependence on the derived commands and status reports and the physical connections made between the video tape recorders and the edit controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.