| 摘要 |
PURPOSE:To extend the transmitting range of a data transmitter and receiver of fine power, by transmitting data provided with a discrimination code. CONSTITUTION:The constitution is done so that data D1, D2-Dn of a prescribed code length comprising binary codes are transmitted repetitively, and after receiving signals are added and averaged at a prescribed period in the receiving, the codes are read. The discrimination codes b1, b2... are provided, the 1st discrimination code b1 discriminates whether the content of an information word is an address or data, the 2nd discrimination code b2 discriminates whether the address is that of a relay device or an objective device when the b1 is 0, and discriminates whether or not the data is the final data among plural data when the b1 is 1. In case of a figure, the relay is done with a transmitter and a receiver of an address Ar and n sets of data are transmitted to a transmitter and a receiver of an address Ad. |
