| 摘要 |
PURPOSE:To detect several kinds of patterns with a same circuit by utilizing the consecutive nature of each pattern. CONSTITUTION:The detection circuit is provided with a serial/parallel conversion section 1 converting a serial input data into an m-bit parallel data, a pattern coincidence detection section 2 receiving plural m-bit parallel data from the serial/parallel conversion section 1 sequentially and checking whether or not mutual patterns in the m-bit parallel data are coincident, a coincidence number counter 3 counting number of coincident patterns detected by the pattern coincidence detection section 2 and a final detection section outputting it as a check pulse when the coincident number reaches a prescribed value from the pattern coincident number counted by the coincidence number counter 3. |
