To prevent the disadvantage of a user by canceling an account processing in the case down-loading is interrupted by an incorrect operation or the like while down-loading prescribed information after the user performs the account processing.

A portable terminal 1 is mounted to a receiver 2 and the request information of a data base menu stored in the storage part 59 of a desired transmitter 3 is transmitted. The transmitter 3 detects data corresponding to the request information in a retrieval part 60 and sends them through the input/ output part 24 of the receiver 2 to the terminal 1. At this point, when the receiver 2 automatically confirms the mounting of the terminal 1 in a mounting discrimination part 40, the account processing part 42 of the transmitter 3 starts the transmission of the data after performing a prescribed account processing and the terminal 1 is turned to a down-loading state. When the user incorrectly releases the mounting during down-loading, the mounting discrimination part 40 sends a release signal to the transmitter 3 and starts a timer, and when counting passes prescribed time, the transmitter 3 cancels the processing of the account processing part 42 by an account cancellation part 58.