Sony Corporation

Yuichi Kojima, Deceased

Norikazu Ito

Satoshi Yoneya

Disclosed is a method for interchanging contents information and a system for interchanging contents information. A loop that a receiving side CLsends a request signal CLcarrying position data pd to a sending side SVthrough a communication system NT, the sending side SVsends back contents information corresponding thereto as a sending signal SV, and the receiving side CLdisplays the signal is repetitively updated and performed at a high frequency by repetitively updating and sending the position data pd at a high frequency. Since the achievable frequency of repetitive updating and performing the loop varies by the combination of receiving side CL, communication system NT, and sending side SV, the achievable maximum frequency mxfQ for each loop is determined from a given table or by actual measurement. A standard frequency stfQ which does not exceed the thus determined frequency is set, the processes along the loop are performed at the standard frequency stfQ or a lower frequency. As a result, power consumption is reduced and communication load is mitigated.

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Kanagawa, Japan

Yuichi Kojima, Deceased