| 摘要 |
PURPOSE:To suppress the bit component of a reproduction picture by selecting a pilot signal in the high frequency of a MUSE signal in the interleave relation with a horizontal synchronizing frequency and frequency-multiplexing the MUSE and pilot signals so as to record said signals in terms of FM modulation. CONSTITUTION:A high definition video signal photographed by a high definition video camera is subjected to the TCI multi-sampling by a MUSE encoder 1 and converted into a MUSE signal. On the other hand, a reference signal at 64.8mHz derived from a reference oscillator built-in the high definition video camera is frequency-divided by a pilot signal generator circuit 2, and the pilot signal at 130.5 fH is derived. Accordingly the pilot signal frequency comes to be in the interleave relation with a horizontal synchronizing signal. A mixer circuit 3 frequency-multiplexes the pilot signal and the MUSE signal with the frequency band at 8.1mHz, and said signals are FM-modulated by a FM modulator circuit 4 at the next state, and are optically recorded by a known video disk recorder for rotating a disk record by field period. |
