| 摘要 |
PURPOSE:To compress amount of data and to improve the transmitting speed by transmitting a bit representing change and data after change when the data change is required and transmitting only a bit representing unchange. CONSTITUTION:A receiver 2n has a means 4 discriminating a device number transmitted together with a data signal. When the receiver discriminates that the transmitted data is addressed to the own station, the receiving operation is started. The data is transmitted in the order of addresses provided in a memory 5 of the receiver. A data train transmitted consists of a discriminating bit discriminating whether or not data change is required and an update data transmitted succeedingly to the dicriminating bit when the change is required. When no change is required to the data, the discriminating bit only is transmitted. The amount of data is compressed and the transmitting speed is improved. |
