| 摘要 |
Apparatus (10) for storing and transmitting AV data includes a receiving buffer unit (40) for storing AV data temporarily, a transmitting buffer unit (50) for storing temporarily the AV data to be transmitted, a primary storage unit (60) for storing AV data and a secondary storage unit (70) for storing AV data, all connected to each other by means of a subnetwork (59). A server control unit (90) for controlling the respective units is also connected to the subnetwork (59). Since these units are connected by means of the subnetwork, there is little restriction on the location of installation of the units. The capacities of the primary and secondary storage units (60,70) and the transmitting buffer unit (50) are selected so that they become larger in the order of the secondary storage unit (70), the primary storage unit (60) and the transmitting buffer unit (50). As a result, the storage units (60,70) and the transmitting buffer unit (50) are controlled in a hierarchical form. This makes it possible to construct an AV server system having large capacity and good responsivity with good cost balance. <IMAGE> |
