Pairing method and terminal apparatus

A portable terminal apparatus which is used to, in a wireless communication system which comprises a first electronic device, a second electronic device, and a plurality of third electronic devices, pair the second electronic device and a particular one of the third electronic devices, and the portable terminal apparatus is the first electronic device,

• the devices each having a wireless communication function, and
• each of the third electronic devices holding a pass key for uniquely specifying each of the third electronic devices,
• the portable terminal apparatus comprising:
• a storage medium which holds identification information for identifying the particular third electronic device;
• a reception circuit which receives a plurality of pass keys from part or all of the plurality of third electronic devices;
• an arithmetic circuit which identifies that a pass key of the particular third electronic device is included in the plurality of pass keys, using the identification information;
• and
• a transmission circuit which transmits the pass key of the particular third electronic device to the second electronic device.

A terminal apparatus which configures a wireless communication system along with a first electronic device and a second electronic device,

• the devices each having a wireless communication function,
• the first electronic device holding identification information for identifying the particular third electronic device, and
• the second electronic device holding a pass key for uniquely specifying the second electronic device,
• the terminal apparatus comprising:
• a storage medium which holds a pass key for uniquely specifying the terminal apparatus;
• a transmission circuit which transmits the pass key, held in the storage medium, to the first electronic device;
• a reception circuit which, when the first electronic device transfers the pass key to the second electronic device, receives the pass key of the second electronic device from the second electronic device which has responded to the transfer;
• and
• a control circuit which establishes connection with the second electronic device.