| 摘要 |
[Object] To provide a differential communication system that is preferable for performing differential communication in a dynamically configured network. [Solving Means] Portable terminals 100 to 120 each generates difference information from information to be transmitted, based on reference information held by itself, and transmits the generated difference information to an intended portable terminal. Also, upon receiving difference information, each of the portable terminals 100 to 120 determines whether or not reference information held by a transmission source of the difference information and reference information held by itself are the same. Upon determining that they are not the same, each of the portable terminals 100 to 120 obtains the reference information held by the transmission source of the difference information, and, based on the obtained reference information, restores, from the received difference information, information to be transmitted.
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