| 摘要 |
PURPOSE:To regenerate transmission data without depending upon a data transmission rate by generating a bit synchronizing signal and a character synchronizing signal from a two-phase signal accompanying a transmission data signal. CONSTITUTION:An (n)-bit shift register 12 is initialized with a character start synchronizing signal 15 and regenerates the transmission data signal inputted to an input terminal 13 in sequence by using a bit synchronizing signal 14 as a shift clock. At the same time, a counter 17 which is reset with a character start synchronizing signal 14 counts the bit synchronizing signal 14 to count character bits. An R-S flip-flop 26 is reset with the character start synchronizing signal 15 and set with a character end synchronizing signal 22. Consequently, a regenerated data output 16 and a character count output 18 are read correctly. |
