| 摘要 |
PURPOSE:To obtain a corrective one-coincidence code used for a spread spectrum communication system, by multiplying an addess of an integral number smaller than a prime number P with a value counting a clock with the P as a modulus. CONSTITUTION:The clock from a terminal 102 is counted by a counter 11 setting the prime number P as the modulus and its counting value is given to a multiplying circuit 13. An ROM12 stores 1-P-1 integral numbers in the (P-1)-addresses, the integral number is read out by an address assigned specifically to each station, and one of the 1-P-1 of integral numbes is inputted to the multiplying circuit 13, which multiplies the said counting value by one of the integral numbers 1-P-1 and outputs a corrective one-coincidence code to a terminal 103 as a spread spectrum code. |
