| 摘要 |
PURPOSE: To generate a digital pseudo random number series with a high bit frequency for a prescribed period of clock pulse signal by providing plural combination devices provided with input/output, which are connected to memory elements. CONSTITUTION: Memory requests 11-17 are constituted of the first group of memory elements 11, 13, 15 and 17 and the second group of memory elements 12, 14 and 16. The output of the combination device 1 is connected to the input of the memory element 12 of the second group and the input is connected to the respective outputs of the memory elements 12, 15, 16 and 17. The output of the combination device 2 is connected to the input of the memory element 11 of the first group and the input is connected to the respective outputs of the memory elements 11, 14, 15 and 16. Thus, the four digital numbers on bits and the like exist in the first group and the three digital numbers on the bits and the like in the second group. Thus, the digital pseudo random number series can be generated with the high (more than twice) bit frequency in the prescribed period the clock pulse signal. |
