Communication system, information processing terminal device and communication method

A communication system connecting an information providing apparatus and an information processing terminal device, wherein the information processing terminal device comprises:

• communication means for transmitting data to and receiving data from the information providing apparatus;
• timing means for timing a duration from a time of transmitting data from the communication means to a time of receiving a response from the information providing apparatus made in response to the transmitted data;
• and
• communication control means for defining a response waiting time for the information providing apparatus as a function of the duration timed by the timing means and for deciding whether a communication is available between the communication means and the information providing apparatus by referring to the defined response waiting time.

A communication method to be used for an information providing apparatus and an information processing terminal device for mutual communications, the method comprising:

• a transmitting step of transmitting data from the information processing terminal device;
• a timing step of timing a duration from a time of transmitting data in the transmitting step to a time of receiving a response from the information providing apparatus made in response to the transmitted data;
• and
• a communication control step of defining a response waiting time for the information providing apparatus as a function of the duration timed in the timing step and for deciding whether a communication is available with the information providing apparatus by referring to the defined response waiting time.

An information processing terminal device comprising:

• a communication section transmitting data to and receiving data from an information providing apparatus;
• a timing section timing a duration from a time of transmitting data from the communication section to a time of receiving a response from the information providing apparatus made in response to the transmitted data;
• and
• a communication controller defining a response waiting time for the information providing apparatus as a function of the duration timed by the timing section and for deciding whether a communication is available between the communication section and the information providing apparatus by referring to the defined response waiting time.

A communication system connecting an information providing apparatus and an information processing terminal device, wherein the information processing terminal device comprises:

• a communication section transmitting data to and receiving data from the information providing apparatus;
• a timing section timing a duration from a time of transmitting data from the communication section to a time of receiving a response from the information providing apparatus made in response to the transmitted data;
• and
• a communication controller defining a response waiting time for the information providing apparatus as a function of the duration timed by the timing section and for deciding whether a communication is available between the communication section and the information providing apparatus by referring to the defined response waiting time.