CONTENT DELIVERY SYSTEM, CONTENT DELIVERY METHOD, AND CLIENT TERMINAL

摘要

When a cellular terminal transmits a content information request including a user ID, a delivery server delivers streaming data of a content usable by the user. When a cellular terminal permits another cellular terminal trial of a content, the cellular terminal transmits trial permission information including its user ID, the content ID of the content, and a digital signature. After authentication, the delivery server streaming−delivers the trial content by using the content ID and the user IS as a search key. Thus, a content usable on a user terminal can be tried on another user terminal without performing a complicated process.