| 摘要 |
PURPOSE:To ensure the reproduction with high quality for a color video signal recording/reproducing device by performing the intermittent recording every 2H with a gate pulse which has a 4H cycle and 2H pulse width and its phase advanced by 90 deg. every field and substituting the carrier chrominance signal thinned in a 2H period with the carrier chrominance signal in a 2H period immediately preceding the first carrier chrominance signal. CONSTITUTION:A gate pulse which has a 4H cycle and 2H pulse width and its phase advanced about 90 deg. every scan period of track is generated 12 in a record mode. The repetitive transmission of a low band conversion carrier signal is carried out and discontinued alternately every 2H period with use of said gate pulse. Then the transmitted low band conversion carrier chrominance signals are intermittently recorded every 2H period. In a reproduction mode a pulse given from a switching pulse generating circuit 33 is used to switch a switching circuit 31 to which the input and output signals of a delay circuit 32 are supplied. Thus the reproduced low band conversion carrier signals in which the input and output signals of the circuit 32 are synthesized in terms of time division are consecutively extracted through the circuit 31. |
