| 摘要 |
PURPOSE:To enable the operation in fail safe, by making the code used for the address frame as linear code and performing the multiple address service using the common area of the linear vector space formed by the linear code. CONSTITUTION:The linear vector space formed with the generation matrix Gi corresponding to each parity check matrix can be obtained by operating an arbitrary four-element vector v(x1, x2, x3, x4) to the matrix Gi. All the elements (a1, a2, a3, a4, a5, a6) of the linear vector space corresponding to the matrix Gi at 16 terminals obtained are listed in table 50 (where; g1, g2, g3, g4 are 0 or 1 and (g1g2g3 g4)2 corresponds to the terminal number). Thus, according to v(x1, x2, x3, x4) operated on the matrix Gi, one or a plurality of addresses representing the common vector space are formed, and the multiplex address communication can be made on a plurality modes basis by transmitting the address (a1, a2, a3, a4, a5, a6) corresponding to the desired multiplex address communication mode from the center. |
