| 摘要 |
A non-contacting transaction system as described which includes a hand-held device (10) which contains information unique to the user and which, when actuated by the user, generates a wireless signal which is picked up by a receiver (12). In a preferred arrangement, the transmitter (10) contains the user's code and has a keypad (17) for the user to insert a personal identification number (PIN) code. The receiver (12) is coupled via a transmission line to a local system where the user's code and PIN number and details of the purchase, received from the vendor, are registered against the user's number so that billing can be carried out subsequently. The receiver (10) can include a means for checking (27) and for rectifying the correctness of the code and PIN number prior to transmitting the data via the modem to the central system. Various embodiments of the invention are described; for example, the device is flexible and the PIN number could be required for all transactions to minimise fraud. Each transmitter may be provided with a terminal to allow an input to the memory for changing details of the user's account and charge number. To prove ownership of the transmitter, the owner's name, telephone number, car registration number etc. may also be fused in the memory along with the credit card number. This information would be displayed only to the vendor who could ask the person who was using the transmitter to identify himself by name, PIN, telephone number or car registration as proof of identity. |
