Kabushiki Kaisha Toshiba

Toshiba Corporation

Shunichi Gondo

Takeshi Chujoh

Hiroyuki Aizu

Mika Minematsu

Takumi Kurosaka

Akiyuki Tanizawa

Tomoya Kodama

Tomonori Maegawa

Yu Mizoguchi

Takayuki Itoh

Shinya Murai

Kotaro Ise

Hiroshi Kawazoe

Daisuke Ajitomi

Sunao Wada

Yasuo Ohya

Masashi Tsuji

Yuji Irie

Hiroyuki Kobayashi

Shingo Tanaka

Shigeo Matsuzawa

Wataru Asano

Keisuke Minami

Mitsuru Kanda

According to an embodiment, a server device includes one or more processors and a first storage. The processors receive first data of transmission data from a transmitting device. The processors further receive second data of the transmission data, transmitted from the transmitting device in response to a transmission request. The processors deliver the first data and the second data to a receiving device. The first storage stores the first data and the second data. The processors delete at least one of the first data and the second data from the first storage according to a predetermined condition, and store data including at least a portion of the deleted data in a second storage.

Server device, information processing method, and computer program product

A transmission device according to an embodiment includes one or more processors. The processors divide a plurality of pieces of transmission data to be transmitted into first data and second data. The processors transmit the first data to a server device configured to distribute the transmission data to a reception device. The processors store the second data in storage. The processors receive, from the reception device or the server device, a request for transmission of the second data. The processors transmit the second data to the server device in accordance with the request for transmission.

Transmission device, communication system, transmission method, and computer program product

According to an embodiment, an encoding device includes an encoder. The encoder is configured to generate a video stream. The video stream includes at least a first image group including a plurality of images encoded at a first bit rate and a second image group including a plurality of images. The first image group includes an intra-coded image. The plurality of images of the second image group are associated with the intra-coded image serving as a reference image to decode an inter-coded image, and are encoded at a second bit rate different from the first bit rate and having reproduction timing in synchronization with the plurality of images of the first image group.

Encoding device, decoding device, streaming system, and streaming method

According to one embodiment, a streaming server that outputs chunk data obtained by dividing picture data into chunks as streaming data, comprises a chunk length determination unit, and a data generation unit. The chunk length determination unit that calculates a chunk length which is a time length of the chunk, and the data generation unit that generates the chunk data by dividing the picture data into the chunks in accordance with the chunk length.

Streaming server, transmission method, and program

A server device includes one or more processors. The processors receive a plurality of transmission data from a transmitting device. The processors divide the plurality of transmission data into first data and second data. The processors transmit the first data to an external server device that delivers transmission data to a receiving device. The processors store the second data in a storage. The processors receive a transmission request for the second data from the receiving device or the external server device. The processors transmit the second data to the external server device in response to the transmission request.

Server device, communication system, and computer-readable medium

An encoding apparatus according to an embodiment includes a specifying unit, a first encoder and a second encoder. The specifying unit specifies a first original image signal included in an original image signal. The first encoder generates base image encoded data obtained by encoding the first original image signal by inter-frame prediction using a reference image signal. The second encoder generates standard encoded data obtained by encoding a second original image signal serving as the original image signal other than the first original image signal by the inter-frame prediction based on the base image encoded data.

Encoding apparatus, decoding apparatus, and image processing system

According to an embodiment, a content reproducing apparatus includes a determination unit, a decision unit, an acquisition unit and a reproducing unit. The determination unit determines a reproduction condition for first content scheduled to be reproduced. The decision unit decides first acquisition information for acquiring the first content based on the reproduction condition. The acquisition unit acquires the first content using the first acquisition information. The reproducing unit reproduces the first content.

Content reproducing apparatus

According to an embodiment, a video compression apparatus includes a first compressor, a second compressor, a partitioner and a communicator. The first compressor compresses a first video to generate a first bitstream. The second compressor sets regions in a second video and compresses the regions so as to enable each region to be independently decoded, to generate a second bitstream. The partitioner partitions the second bitstream according to the set regions to obtain a partitioned second bitstream. The communicator receives region information indicating a specific region that corresponds to one or more regions and selects and transmits a bitstream corresponding to the specific region from the partitioned second bitstream.

Video compression apparatus and video playback apparatus

According to an embodiment, an encoding device includes a storage controller, a difference generator, and a communication controller. The storage controller is configured to store a base stream in a storage. The base stream serves as basis for encoding and decoding and is shared with a decoding device. The difference generator is configured to generate a difference bit stream that represents difference between an input bit stream that has been input and the base stream. The communication controller is configured to control a communicating unit to transmit the difference bit stream.

Encoding device, decoding device, computer program product, and streaming system

According to an embodiment, an image encoding apparatus includes a background control information generator, a background image generator, and an image encoder. The background control information generator generates background control information based on an input image. The background control information is used for generating a first background image from at least one first image. The background image generator generates the first background image, based on the background control information and at least one first image. The image encoder encodes the input image using the first background image to generate encoded data.

Image encoding apparatus, image decoding apparatus and image transmission method

According to one embodiment, a communication apparatus communicates with a first device including a first data file via a network. The communication apparatus includes an indication unit and a request sending unit. The indication unit indicates a first data sending request to send first data from a first position as a start position of the first data file toward a second position as an end position of the first data file. Furthermore, the indication unit indicates a second data sending request to send second data from the second position toward the first position in the first data file. The request sending unit sends the first data sending request and the second data sending request to the first device.

Apparatus for efficient reconstruction of data file

In general, according to one embodiment, a communication device conducts connection type data communications. The device includes an application configured to supply or request data by using a connection. The device also includes a termination unit that receives a request of terminating the data communications, and reports, to the application, termination of the connection without terminating the connection.

Communication device and communication method

According to an embodiment, a reproduction device includes an acquirer, a decoder, and a synthesizer. The acquirer is configured to acquire transmission information including first and second coded data. The first and second coded data are generated by encoding first and second image data, respectively. At least one of the first and the second image data is lossy encoded. The first and second image data being generated by performing conversion processes different from each other on original image data. The decoder is configured to decode the first and second coded data to generate first and second decoded data. The synthesizer is configured to synthesize the first and the second decoded data with adjusting pixel positions of the first and the second decoded data so that the pixel positions of the first and the second decoded data are identical to each other to generate reproduction image data.

Growing community of inventors

Tokyo, Japan

Shunichi Gondo