Write clock generator for time base corrector

Abstract From the Canadian patent

A write clock generator for a time base corrector incorporated in a video tape recorder can generate a write clock signal including accurate phase and frequency fluctuation information on a reproduced video signal in spite of a simple circuit configuration. A write clock signal is generated from a VCO oscillated in response to a reproduced burst signal and further, the VCO is so controlled on the basis of a frequency difference between the oscillated write clock signal and a frequency fluctuation signal such that the frequency difference may be eliminated. The frequency fluctuation signal is generated in response to a horizontal synchronizing signal so as to include time base fluctuations …