| 摘要 |
PURPOSE:To attain the recording of video signal with high resolution and excellent color reproducibility by offsetting the subcarrier frequency of the color difference signals provided adjacently to tracks by 1/2 of the horizontal scanning frequency which is adjacent with each other at every n-pieces of the adjacent recording tracks. CONSTITUTION:The inputted luminance signal Y is divided by a multiplexer 2 into signals of two channels which dot-interlace, and supplied respectively to filters 3 and 4. Unnecessary signals are removed by the filters 3 a 4 from the said signals, and they thereafter are modulated by FM modulator circuits 5 and 6 and added to adders a1 and a2. Meanwhile, color difference components B-Y and R-Y are supplied to multipliers M1 and M2, and are multiplied by f3 and f2 where ¦f2-f3¦=fH/2. The resulting signals, after being subjected to a band limitation by LPFs 7 and 8, are supplied to the adders a1 and a2 as being made not overlap in the band of the luminance signals. The color difference components and the luminance signals Y1 and Y2 are added with each other, and supplied to heads A1 and B1, and A2 and B2. |
