| 摘要 |
<p>A first initialization pattern signal having alternate maximum and minimum signal levels and a second initializing pattern signal having a predetermined arrangement of all the signal levels are used. In a ring network including data transmitters (100), a transmitting section (110) of each data transmitter sends the first initialization pattern signal to the next-stage data transmitter when the power is turned on or the transmitter is reset. A receiving section (120) establishes clock synchronization according to the received first initialization pattern signal. When the synchronization of all the data transmitters is established, the transmitting section (110) sends the second initialization pattern signal to the next-stage data transmitter, and the receiving section (120) sets judgment levels for the signal levels according to the received initialization pattern signal. When the judging levels are set by all the data transmitters, data is started to be transmitted and received.</p> |
