Computer video signal distributor between a computer and a plurality of monitors
US6119148A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1998 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/1431
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer video signal distributor receives as inputs the video signals of a computer, and then processes and distributes these video signals to a plurality of monitors. The computer video signal distributor includes three transistor common based voltage amplifying circuits for inputting red, green, blue video signals of the computer respectively, then amplifying these video signals for outputting. Three sets of transistor emitter follower current amplifying circuits are provided for connecting respectively with one of the outputs of the three voltage amplifying circuits, and provide sufficient frequency response for inputted video signals, and distributing the inputted video signals according to the number of monitors. A synchronous signal buffering device is provided for receiving synchronous signals of the computer, and generating a plurality of sets of synchronous signals according to the number of the monitors. A plurality of monitor input interfaces are provided for receiving the video outputs of the three sets of current amplifying circuits, and receiving the plurality of sets of synchronous signals from the synchronous buffering device, then outputting respectively to the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.