Abstract: A wireless terminal device which can be easily connected with an access point with a simple procedure and with no expertise, a wireless connection method and a program are provided. In a wireless terminal device (100), when information (SSID) for identifying the access point and authentication information (encryption key) used for connection with the access point are inputted, each of system judgment units (123 to 127) performs a trial connection with the connection target access point according to the obtained access point information and authentication information in accordance with the selected security system in series and determines the security system by which the trial connection succeeds as the security system used for the actual communication.

Abstract: Provided is a communication device capable of efficiently performing a power supply control when reducing power consumption by reducing the time during which the power is supplied. In the device, a CPU power saving control unit (301) switches between a normal mode in which the power is supplied to a CPU (302) and a low power consumption mode in which the power supply is stopped at predetermined timing. A session management table (321) stores transmission intervals before and after conversion. An information conversion section (322) converts the transmission intervals of session maintenance messages according to a predetermined rule so that the transmission intervals of the session maintenance messages of respective protocols are mutually synchronized between the protocols.

Abstract: A personal network management method wherein if an access request is received from a communication terminal exterior to a personal network and the association of communication terminal information of the access request with the corresponding terminal in the personal network has not been registered yet, then the registration as to whether the connection to the communication terminal is permissible can be dynamically performed, and wherein the procedure of a registration from a communication terminal exterior to a personal network is facilitated, and an access into the personal network also can be performed.