Kabushiki Kaisha Toshiba

Yasuhiro Morioka

Akihiko Sugikawa

Keiichi Teramoto

Daisuke Ajitomi

Teruhiko Ukita

Mitsuaki Moritani

Hiroki Iwahara

Naomiki Kobayashi

Hirokazu Nagashima

Shinya Murai

Yoshiki Terashima

Naozumi Koshino

A bridge apparatus is disclosed, the bridge apparatus being connected between a first network and a second network and achieving a communication between equipment connected to the first network and equipment connected to the second network. This apparatus accepts communication from the equipment over the first network to equipment disconnected from the second network, and then, preserves contents of the communication even in the case where the equipment over the second network has been disconnected from the second network for reasons such as electric power cut. In the case where the disconnected equipment has been connected to the second network again, this apparatus transmits the accepted contents of the communication to the reconnected equipment.

Bridge apparatus and bridge system with a virtual device for protocol conversion

According to one embodiment, when receiving a reproduction instruction, a reproduction apparatus performs image display based on second image information acquired through a network. When the reproduction apparatus receives a stop instruction while performing the image display based on the second image information, the reproduction apparatus performs the image display based on received first image information after performing the image display for a predetermined time based on third image information.

Reproduction apparatus and reproduction method

According to one embodiment, an electronic apparatus includes a wireless communication device, an information acquisition module, a file management information generation module, and an access control module. The information acquisition module acquires, by wireless communication with an external device, metadata corresponding to content data which the external device can provide. The file management information generation module generates, based on the acquired metadata, file management information based on which a host apparatus recognizes the content data as a file stored in a storage medium in the electronic apparatus. The access control module is configured to, upon receiving a read request for a file corresponding to the content data, which is transmitted from the host apparatus, execute external device access processing of acquiring the content data from the external device using the wireless communication device, and output the acquired content data to the host apparatus.

Electronic apparatus and content data providing method

According to one embodiment, a content transmission apparatus includes a data acquisition module configured to get a content item and metadata having a plurality of items for explaining details of the content, a notification module configured to notify an upload destination apparatus for the content of the metadata, a transmission module configured to encode the content and transmits the encoded content as a body of an upload request based on an HTTP POST request to an entry point created by a content reception apparatus on the basis of the metadata, a detection module configured to detect a change in metadata notified to the content reception apparatus relative to metadata newly got by the data acquisition module, and a posterior notification module configured to notify the content reception apparatus of posterior metadata containing at least a changed item in the metadata, when the detection module detects a change in the metadata.

Content transmission apparatus, content reception apparatus, and content upload method

According to one embodiment, an electronic apparatus is detachably connected to a host apparatus. The electronic apparatus includes a file management information generation module. The file management information generation module generates file management information based on which a host apparatus recognizes each of content data items as a file stored in a storage medium, the file management information being indicative of a plurality of starting storage locations on the storage medium corresponding to starting data blocks of the content data items, and a plurality of shared storage locations on the storage medium, which are shared by the content data items and correspond to second and following data blocks of each of the content data items.

According to an aspect of the present invention, there is provided with a data transmission method that uses first and second media devices which communicate with each other according to a predetermined transmission protocol and a control device which controls the first and second media devices based on a UPnP AV protocol, including: establishing a virtual connection between the first and second media devices under control of the control device; transmitting a real connection establishment request from the first media device to the second media device, the real connection establishment request including information of the virtual connection; establishing a real connection between the first and second media devices, the established real connection being related to the virtual connection; and transmitting media data from the second media device to the first media device or versa by using the established real connection.

Data transmission system, data transmission method, and media apparatus

There is provided with a bridging device that is connected to a first and a second network, including: a connection detecting unit that detects an appliance on the second network; a state holding unit that holds either a first or a second state; an arbitration unit that determines that the detected appliance is subjected to bridging processing in a case where the second state is held by the state holding unit, and, determines whether the detected appliance is subjected to the bridging processing on the basis of a predetermined confirmation condition where the first state is held by the state holding unit and, in a case where it is determined that the appliance is subjected to the bridging processing, sets the state holding unit in the second state; and a bridging unit that subjects the appliance, which is determined to be subjected to the bridging processing, to the bridging processing.

Bridging device, communication program, and communication method

A service providing apparatus which advertises first service description on a network and which provides a first service associated with the first service description. A definition table is prepared to define a condition on which a function of the first service is extended utilizing a second service associated with second service description and a method of calling the second service. The second service which satisfies the condition is searched for referring to the definition table, and the first service description is updated based on the second service description associated with the searched second service. Moreover, the service description is advertised on the network. The second service is called in response to a service request based on the service description of the advertised first service, and a response from the second service is received. A response to the service request is generated based on the response from the received second service.

Service providing apparatus, service providing method, and program

A content management apparatus includes a content information provider, a table generator, a table update unit, and a location information replacement unit. The content information provider provides content information including permanent identification information indicating a storage location of contents. The table generator generates an equipment information management table which associates permanent identification information for identifying a first communication apparatus and temporary communication address information for communicating with the first communication apparatus. The table update unit is configured to update information of the equipment information management table. The location information replacement unit is configured to replace the permanent identification information in the content information by the temporary communication address, based on the equipment information management table.

Content management apparatus, content management system, and content management program

In the present invention, a plurality of the communication control apparatus form a group to communicate each other. In each communication control apparatus, a memory section stores at least one data and its discrimination information. When the discrimination information of data to broadcast is inputted through an input section, a retrieval section retrieves the data corresponding to the discrimination information from the memory section. A sending section broadcasts the retrieved data to other communication control apparatuses of the group. A receiving section receives the data broadcasted by other communication control apparatus of the group.

Communication control apparatus and method

A scheme for data transfer among data communication devices on a network which is capable of reducing a cost required for maintaining the data packet order. Uniquely defined consecutive packet numbers are generated at one data communication device among those data communication devices which are in communication state, and a packet number for each data packet to be transmitted at each data communication device is obtained from that one data communication device. Then, each data packet is transmitted at each data communication device by attaching a corresponding packet number to each data packet. On the other hand, data packets are received at each data communication device, and received data packets are processed at each data communication device in an order of packet numbers attached to the received data packets.

Scheme for data transfer among data communication devices using data

The data processing device 400 of this invention comprises a controller unit 402, a data recorder unit 404, a display unit 406, a data input unit 408 and a communication control unit 410. By transmitting a request for service in a multiple-address way to a plurality of devices on a network and selecting a service providing device, communicability with the service-providing group can be automatically obtained without prior registration of device information in the respective devices or in any specified device. If the service providing device withdraws from the network or a trouble develops in the communication link, a new service providing device is selected from among other communicable devices.

Growing community of inventors

Kawasaki, Japan

Yasuhiro Morioka