Video signal time base compression apparatus

DETAILED DESCRIPTION In consideration of the above subjects, it is an object of the invention to provide a video signal processing apparatus in which a circuit for the simple double speed and a circuit for the time base compression which have independently been executed are constructed as a single circuit and the number of memories is reduced and a circuit construction is simplified.
To solve the above subjects, according to a video signal processing apparatus of the invention, the writing operation into a memory is processed every 2H and the reading operation from the memory is also processed every 2H, so that the circuit for the simple double-speed and the circuit for the time base compression which have independently been executed can be constructed as a single circuit, the number of memories which are used can be reduced, and the peripheral circuit construction can be simplified.
According to the invention, by using the above construction, the number of memories which are used is reduced, the peripheral circuit construction can be efficiently realized, and it is possible to contribute to a decrease in costs.