Transreceiver, commodity and service trading system, and transmitter and receiver used therein

摘要

In a commodity and service trading system, a client computer 60 receives an input window from a Web server 70 connected via the Internet 72 for the user's entry of transaction data regarding a trade of commodity or service. The user's entry of transaction data on the input window is registered in the form of a user data table into a memory 33 of a transreceiver 20 (transreceiver main body 30). The transreceiver 20 enables delivery of the transaction data registered in the user data table, in parallel with reception of transaction data from another transreceiver 20B or 20C. When a commodity or service option set as an object trade and transaction conditions required for the object trade in the received transaction data match with the commodity or service option and the transaction conditions in the transaction data registered in the user data table, the received transaction data is registered in the form of a receiving data table into the memory 33. In response to the registry in the receiving data table, an alert is output in a specific alert pattern to an alert device 40 or a cellular phone 80 connected to the transreceiver 20.