| 摘要 |
A circuit, which shifts an M-sequence code with an arbitrary number of bits, is realized by a small circuit scale. D-type flip-flops 1-6 form a shift register for generating an M-sequence and having outputs d0-d5 of respective stages, to which 2<5> bit shift inserting circuit 10 is connected in the manner of receiving the outputs d0-d5 as respective inputs and of outputting outputs O0-O5, to which 2<4> bit shift inserting circuit 11 is connected in the manner of receiving the outputs O0-O5 as respective inputs. In the same manner, a 2<3> bit shift inserting circuit 12, a 2<2> bit shift inserting circuit 13, a 2<1> bit shift inserting circuit 14, and a 2<0> bit shift inserting circuit 15 are sequentially connected with one another. Each of bit shift inserting circuits 10-15 respectively shifts a predetermined bit when control signals b5-b0 are "1", and does not shift a bit when "0" so as to output an input as it is. Therefore, it is possible to obtain an arbitrary bit shift. <IMAGE> |
