| 摘要 |
PURPOSE: To provide the information transmitter for automobile and the on- vehicle information receiver in which the load of the transmitter is reduced, the load of the user is relieved, a radio wave is utilized effectively and an extract operation of desired information is facilitated. CONSTITUTION: The information transmitter 1 is provided with a MODEM (reception means) 4 receiving a request of a specific user, a CPU 7, a MODEM 8 and a pager transmission station 10 acting like a common information transmission means sending simultaneously common information to all users when the common information not-transmitted is requested and an identifier transmission means sending an identifier corresponding to the common information to the specific user when the common information already transmitted is requested. Furthermore, an information receiver 15 is provided with a pager receiver 11 receiving the common information and the identifier, a memory 12 storing the common information and a CPU 13 receiving the identifier and reading the common information corresponding to the identifier from the memory 12 and displaying the information on a display panel 14. |
