| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress unnecessary radiation in a transmission path when a data transmission device transmits data and a clock to a data reception device using a plurality of clocks which are in a synchronous relation and whose frequencies differ in a processing of reception data. <P>SOLUTION: In a data transmission device-side, only one clock out of a plurality of clocks is transmitted with transmission data. In a data reception device-side, the transmission data and the one clock are received, one clock is multiplied and the other one or more clocks different in the frequencies are created and the necessary clock is obtained. When only the clock whose frequency is the lowest out of the plurality of clocks is transmitted from the data transmission device-side, for example, unnecessary radiation in the transmission path can be suppressed to the minimum. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
