Patent ID: 8345881

Claim:
A communication system comprising a first information processing apparatus and a second information processing apparatus, wherein: the first information processing apparatus comprises: a first transmission means for wirelessly broadcasting a connection request containing a public key; a first reception means for receiving encrypted key information transmitted wirelessly from a second information processing apparatus in response to the connection request, the encrypted key information being generated by the second information processing apparatus and encrypted using the public key; decryption means for decrypting the encrypted key information to obtain a secret key; and a first means for conducting encrypted wireless communication with the second information processing apparatus using the secret key received from the second information processing apparatus by the first reception means; and the second information processing apparatus comprises: a second reception means for receiving the connection request transmitted from the first information processing apparatus; a means for generating the secret key only if the reception intensity of the electromagnetic wave which conveys the connection request is higher than a threshold value, the threshold value being greater than a minimum electromagnetic wave reception intensity required for detection of the connection request; a second transmission means for transmitting the encrypted key information to the first information processing apparatus; a second means for conducting wireless communication encrypted by the secret key with the first information processing apparatus; and further wherein the second information processing apparatus does not send an acknowledge to a received connection request containing the public key if the reception intensity of the electromagnetic wave which conveys the connection request is lower than a threshold value, wherein the analysis of the connection request is determined based upon an electromagnetic wave intensity for electromagnetic energy transferred directly between the first information processing apparatus and the second information processing apparatus, and an ad hoc connection is established only if the electromagnetic wave intensity is greater than the threshold value and the first information processing apparatus and the second information processing apparatus each independently process information in order to present information directly to users of the respective devices.