Patent ID: 7428404

Claim:
A communication apparatus to be operative in combination with first and second external devices for respectively producing first and second information, comprising: a memory operable to store a plurality of application programs; a first information receiving section operable to receive said first information from said first external device wherein said first information includes an identification code identifying an application program from a plurality of application programs stored in the memory; a communication performing section operable to perform a communication with said second external device by receiving said second information from said second external device and to produce an exchange information to be transmitted to said second external device; a judging section operable to judge whether or not to start to execute the application program on the basis of the identification code of the application program; and a controller operable to control said communication performing section by assuming two different operational states including a first operational state to allow said communication performing section to be operable to perform said communication with said second external device, and a second operational state to allow said communication performing section to be inoperable to perform said communication with said second external device, said controller being adapted to selectively assume said first and second operational states in response to said first information received by said first information receiving section, wherein said first information is represented by a radio frequency wave to be transmitted to said first information receiving section by said first external device, and said first information receiving section is adapted to assume an energized state to receive said first information from said first external device in response to said radio frequency wave received from said first external device.