Color video signal recording and/or reproducing system
US4068257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Oct 12, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/83
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color video signal recording system comprises a frequency modulator. A luminance signal is separated from an input color video signal. The amplitude of a color burst signal is intensified after it is separated from the input color video signal. The intensification is with respect to the amplitude of a carrier chrominance signal separated from the input color video signal. An automatic chroma control circuit receives the intensified color burst signal and the non-intensified carrier chrominance signal to effect level control. A specific level is not exceeded. A first frequency converter converts the frequency of the output signal of the automatic chroma control circuit. The converted signal is in a band which is lower than the band of said frequency-modulated luminance signal. The frequency-modulated luminance signal and the resulting output signal of said first frequency converter are mixed and multiplexed. A transducing head records the resulting mixed and multiplexed signal on a recording medium. A color video system reproduces a signal recorded by the above described recording system. The reproducing system comprises a transducing head for reproducing the signal recorded on th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.