| 摘要 |
PROBLEM TO BE SOLVED: To generate clock signals with plural frequencies by one oscillator and a digital circuit. SOLUTION: The generating circuit is provided with an oscillator 10 generating a basic clock, a delay signal generating means 1 delaying sequentially a basic clock oscillated from the oscillator 10 and providing an output of n-sets of delay signals synchronously with the basic clock, and a differentiation signal generating circuit 14 generating n-sets of differentiation signals based on two adjacent signals each in the n-sets of delay signals outputted from the delay signal generating means 1. Then the delay signal generating means 1 is provided with a video clock generating means 2 selecting the differentiation signals of a number based on the setting of the predetermined video clock and generating the video block based on the selected differentiation signals. |
