Bandwidth enhancement network for color television signals
US4355326A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1981 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Feb 11, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A network is described for use in enhancing the bandwidths of color signals in a color television system. The network is a feedback arrangement in which amplifiers multiply each color signal by a variable factor K to provide manifold color signals. High frequency luminance components are inserted into the modified color signals to develop high frequency color output signals. The modified color signals are weighted by selected coefficients and summed. The value of the summed signal is used to vary the factor K so that the high frequency luminance components in the color output signals are substantially equal to the high frequency components of the luminance signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.