| 摘要 |
PURPOSE:To allocate code data as a channel number as they are by providing a second shiftregister, for which second pattern data different from first code pattern data are inputted, the initial state of a shiftregister in a prescribed step is fixed and the initial state of the other shiftregister can be changed. CONSTITUTION:In an MSRG 1, MSRG 2 and MSRG 3, two kinds of m-sequence codes can be obtained by supplying the different code pattern data to a PTN 1 and PTN 2. Since the same code pattern data are supplied to the MSRG 2 and MSRG 3, the same kind of the m-sequence code can be obtained. However, concerning the initial state, an n-1 bit is made common for B2-Bn terminals. Then, since 1 bit of a remained B1 terminal is fixed to an 'H' level in the MSRG 2 and fixed an 'L' level in the MSRG 3, the code of a different phase is obtained. Accordingly, in an E1 and E2, the GOLD code of a different pattern is generated without fail. |
