| 摘要 |
PURPOSE:To eliminate the need for a possessor to listen to the content by allowing a card to process received data when a received radio wave represents a signal calling the card itself. CONSTITUTION:A card subscriber number is dialed from a telephone set 10 of a calling station 1, a center device 2 receives the card subscriber number, converts the number into a corresponding selective call code to modulate a radio carrier frequency and irradiate a radio wave from an antenna 23. When a card 3 receives the radio wave and the received number data is coincident with the stored number data, the card 3 is in stand-by state until the next data is received. When the telephone set 10 of the calling station 1 receives a response signal, a prescribed sound signal is generated from a handset 12, then the handset is placed on an acoustic coupler 13 to transmit a data inputted in advance from a card control terminal device 14. |
