| 摘要 |
PURPOSE:To simplify the constitution of an input circuit and to decrease the number of parts by using the switch signals of an bidding device as the bidding data and adopting the address addition data communication to make an interface device select and input successively the bidding data on each bidder to a data processing part. CONSTITUTION:Each bidder transmits the bidding data via his own radio bidding device 1, and these transmitted data are received by a receiver of the auction seller side. This data communication is carried out with addition of addresses, and an interface device 3 selects the data corresponding to a data request command signal out of those transmitted addressing bidding data and inputs them to a data processing part 4 in the order of commands. These operations are repeated and therefore the overall bidding situation is grasped. That is, many received bidding data are sequentially transferred to the part 4 for each address via the device 3 and not transferred en bloc. Thus the transfer circuit can be used in common to the bidders. As a result, the circuit constitution is simplified and the number of parts is decreased. |
