| 摘要 |
<p>PURPOSE:To eliminate necessity for enhancing response processing capability of a transmission main body and to improve the transfer efficiency of information. CONSTITUTION:The information is sent in multiaddress from a transmission main body 1 by a communication path 4. When the reception main bodies 22 and 24 are abnormal in reception and another reception main body 21 is normal in reception, the main body 21 first transmits in multiaddress a response of 'reception normal' by a communication path 51. Thus the reception main bodies 22, 23, 24...2n suppress their own responses since the received responses are 'reception normal'. Then the main bodies 22 and 24 transmit in multiaddress the responses of 'reception abnormal' by a communication path 52 since the received response is 'normal reception' and the answer to be returned by themselves are 'reception abnormal'.</p> |
