| 摘要 |
PURPOSE:To make the titled unit suitable for applications of the memory by using a horizontal synchronizing signal of an input video signal so as to reset a write or read address signal and acting the memory as a variable, delay line in writing or reading the digital video signal of a single clock to/from a time base correction memory. CONSTITUTION:A memory 31 for time base correction is provided and the write into the memory 31 and the readout from the memory 31 with respect to at least a luminance signal in a digital video signal are applied by using a prescribed clock, and the write address signal or the read address signal to/from the memory 31 are reset by using a horizontal synchronizing signal in the luminance signal written in the memory 31. Thus, a first data location is constant at each line and the digitized data by the clock of the subcarrier lock system is arranged vertically on the screen similarly as line-lock and used suitably for memory applications.
|
