| 摘要 |
A ROM lookup table (4) with a set of data for a PN sequence of a power-of-two length is addressed by a combination of an integrated value (S2) by a self-running N-bit binary counter (3) and a latched offset (S1) to be employed for an offset control of an output PN sequence (S4) to be effected by directly obtaining a desired value from the latched offset value, without the need of a mask computation, permitting an increased speed of operation and a reduced scale of circuitry. <IMAGE> |
