Fujitsu Corporation

Fujitsu Semiconductor Limited

Hideo Makabe

Hitoshi Ogawa

Nobuhiro Taki

Masato Tomita

Yasushi Sakai

There is provided a data transfer method in an IEEE1394 system including a band request node and a transfer band management node. The method includes generating, at the band request node, a transfer request that can detect a data amount of transfer data and transmitting the transfer request from the band request node to the transfer band management node, determining, by the transfer band management node, whether a transfer band requested by the transfer request is ensured or not, notifying, from the transfer band management node, the band request node of the determination result, and transferring data from the band request node according to the determination result.

Data transfer method

A connection device for connecting electronic devices via a network allows activates its status signal in response to a data transfer operation or in response to receiving a remote status signal. By limiting the activation of the status signal, the connection device reduces the power consumption of the electronic devices. The connection device also performs plug-and-play initialization to prevent device conflicts and allow for hot plug-in of electronic devices.

Apparatus and method for controlling device connection

A data processing apparatus suitable for fast processing of a large amount of data provides continuous and real-time reproduction of moving pictures that have a reality to them. In one embodiment, the data processing apparatus includes: a first memory for receiving and storing first transfer data supplied from an external device in a first transfer mode for transferring data in a predetermined cycle; a second memory for receiving and storing second transfer data supplied from the external device in a second transfer mode, the second transfer mode transfers the second transfer data using a remaining time resulting from exclusion of a time needed for transfer of the first transfer data from the predetermined cycle; a first interface for receiving the first transfer data read from the first memory and outputting the first transfer data; and a second interface for receiving the second transfer data read from the second memory and outputting the second transfer data.

Growing community of inventors

Kasugai, Japan

Hideo Makabe