Patent ID: 7293084

Claim:
A network contents managing system comprising: a plurality of apparatuses connected to a network wherein each apparatus of the plurality of apparatuses comprises a contents file and a contents monitoring unit that outputs contents modification information to the network when the apparatus modifies the contents file; one of said plurality of apparatuses comprising a contents database, a database managing unit, a network monitoring unit, a power monitoring unit, a remote start unit, a retrieval result output unit, and a power operation unit; the contents database retaining accessibility information for each of the contents files of the plurality of apparatuses; the network monitoring unit that monitors a change in connection state to the network of at least one of the apparatuses of the plurality of apparatuses and outputs to the plurality of apparatuses on the network a new apparatus connection state as connection state information when the connection state of the apparatus changes; the power monitoring unit for monitoring a power operation of at least one apparatus of the plurality of apparatuses connected to the network; the remote start unit for activating at least one of the contents database, a retrieval request detection unit, the network monitoring unit, a database retrieval unit, the database managing unit, and a retrieval result output unit at another apparatus of the plurality of apparatuses connected to the network; and the power operation unit for operating a power of another apparatus of the plurality of apparatuses connected to the network, wherein said database managing unit updates the contents database according to the contents modification information, and the database managing unit further updates the contents database according to the connection state information.