Hitachi, Ltd.

Mitsuhiro Imai

Junichi Kimura

Masataka Okayama

Disclosed is a communication control device for measuring the delivery quality of unicast/multicast video delivery by a user premises device. The communication control device connects a first network to a second network. The first network is connected to a delivery server for delivering data packets containing plural pieces of content. The second network is connected to a plurality of computers for acquiring the data packets from the delivery server. The communication control device acquires control information that is transmitted from the computers to the delivery server, extracts computer identification information and data packet identification information from the acquired control information, and measures the delivery quality of data packets targeted for measurement, which are to be transmitted to the identified computers, in accordance with the extracted computer identification information and the extracted data packet identification information.

Communication control device and communication quality measurement method

For achieving smooth facilities of services within a home network system where service applications of a plural number of service undertakes are mixed with, management is made upon a use memory volume for an application and an accessing authority to equipments within a home by means of a home gateway, and thereby achieving a home network for preventing an unexpected application from communicating with an unexpected equipment within a home, but without obstructing mutual services by the plural number of service undertakers, with setting up an upper limit of memory volume when starting up the application and the accessing authority from the application to the equipment within the home.

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Yokohama, Japan

Mitsuhiro Imai