CLOCK REPRODUCING CIRCUIT

摘要

PURPOSE:To control the frequency of a read clock in accordance with the frequency of a write clock for the purpose of setting the picture data storage capacity of a FIFO memory to a proper value. CONSTITUTION:A correction value corresponding to the picture data storage capacity of a FIFO memory 22 is outputted from a correction value generating circuit 23. This correction value is added to a transmission-side sampling clock (which may be equal to the write clock) by an adder 24 to obtain a corrected sampling clock. A reproduced sampling clock is outputted from a voltage controlled oscillator 16 as the read clock based on the corrected sampling clock and a transmission line clock.