Analog video signal transmission over twisted-pair wires
US8074255B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2005 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Feb 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video transmitting system may be configured to transmit, over extended length twisted-pair cables, video signals encoded in the Y/C video space. The system may comprise a source of RGB computer video signals. A video transmitter may be operable to convert the RGB video signals into a balanced luminance signal and a respective pair of balanced color difference signals. The video transmitting system may be further configured to transmit the balanced luminance signal and the pair of balanced color difference signals over respective extended length twisted-pair cables. The luminance signal may be transmitted over a non time-corrected cable in order to retain bandwidth, while the color difference signals may be transmitted over time-corrected cables, thereby reducing the visual degradation of the signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.