Transmission device for computer video signals
US6160543A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transmission device for computer video signals. Computer video signals can be inputted into the transmission device for processing and to be transmitted by only three pairs of transmission line (Category 5 UTP) to a remote terminal, while still maintain the function of horizontal and vertical synchronism. The transmission device has a converter for converting the polarity of horizontal synchronous signal (Hsync) and vertical synchronous signal (Vsync) into a state pulse (STATE). The state pulse (STATE), a negative pulse for vertical synchronous signal (V), a negative pulse for horizontal synchronous signal (H) are then carried respectively on the red video signal (R), the green video signal (G), and the blue video signal (B) for transmitting to a receiver in the remote terminal. The receiver in the remote terminal has a color signal recovering circuit, a polarity mode recovering circuit, and a synchronous signal recovering circuit for abstracting the negative pulse for vertical synchronous signal (V), the state pulse (STATE), and the negative pulse for horizontal synchronous signal (H) from the red video signal (R), the green video signal (G), and the blue video signal (B), and t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.