INSERTING METHOD OF SESSIONAL CIRCUIT TO TRANSMISSION LINE OF CMI CODE

摘要

PURPOSE:To replace a part of the redundant part in CMI code conversion with a sessional circuit information to transmit the information by changing the switching cycles of two modes corresponding to the same input code by the information of 10 and 1 of a sessional circuit. CONSTITUTION:The transmitting signal is supplied to a CMI converting circuit 3 for insertion of a sessional circuit through a signal input terminal 1 and a clock signal input terminal 2 and then transmitted to a transmission line 9 after a conversion of code. In this case, the switching cycle of an output pattern to an input data 1 is set at the cycle of the CMI converting rule in case the data (OW) of the sessional circuit is 0. If the data (OW) is 1, the switching cycle of the output pattern is set double as much as the cycle of the CMI converting rule for output. Then the receiving signal is turned into the origingal transmitting signal at a CMI converting circuit 11 for separation the sessional circuit. This transmitting signal is supplied to a signal output terminal 12 and a clock signal output terminal 13.