| 摘要 |
PURPOSE:To prevent a synchronism recovery detection signal of a receiver from being effected with a code error, by assuming the time as the synchronism recovery condition, when a start and a stop signal of each word are detected at the same time from the output of a shift register storing a transmission signal for plural words. CONSTITUTION:A signal 1a is inputted to a shift register 1-1 via shift registers 1-3, 1-2. Each shift register has a bit length of one word length. AND gates 4-1- 4-3 detect starts bits, and AND gates 3-1-3-3 detect stop bits. When the word is in synchronism correctly, an output is obtained from an AND gate 14, an FF 11 is set, an AND gate 11 is opened with the output of an AND gate 7, and a signal of a shift register 1-1 is shifted to a register 2 by a signal WRT. When the word is not in synchronism, the signal WRT is absent and the data is not shifted. |
