| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a data processing method for preventing occurrence of omission of DI data. <P>SOLUTION: A frequency divider circuit 31 divides a clock frequency of a crystal vibrator 23 to produce a pulse signal. On the other hand, an STB signal detection section circuit 33 detects an STB DI revision signal, and an STB LOCK signal is transmitted for output of the STB signal detection section circuit 33. A counter 34 generates a signal of a "Low" state until a succeeding STB signal arrives after the counter 34 detects the STB signal and is kept in a "High" state for a prescribed time. When the STB LOCK signal after the signal in the "Low" state and the pulse signal generated by the frequency divider circuit 31 are given to a double latch signal generating circuit 32, the double latch signal generating circuit 32 generates a double latch signal twice for a DI ON time by a DI ON/OFF time ratio selection signal. When the latch signal is given to an input data latch circuit 35, data for avoiding omission of data are obtained for the output of the circuit 35. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
