A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.

An apparatus and method are provided. The apparatus comprises a plurality of inputs, a plurality of receive buffers, a processor and an output. The plurality of inputs are configured to receive a plurality of data streams. Each data stream comprising a respective plurality of data blocks carrying common content. The plurality of receive buffers are each configured to store the data blocks of a respective on of the plurality of data streams including storing quality information associated with each data block. The processor is configured to select stored data blocks from the respective buffers to form an output data stream carrying the common content. The processor is further configured to carry out signal processing on the selected data blocks in dependence on the associated quality information. The output is configured to output the selected and error concealed data blocks. The quality information associated with each data block corresponds to a quality experienced by a receive path at the time of reception of each data block.

An apparatus and method are provided. The apparatus comprises a plurality of inputs, a plurality of receive buffers, a processor and an output. The plurality of inputs are configured to receive a plurality of data streams. Each data stream comprising a respective plurality of data blocks carrying common content. The plurality of receive buffers are each configured to store the data blocks of a respective on of the plurality of data streams including storing quality information associated with each data block. The processor is configured to select stored data blocks from the respective buffers to form an output data stream carrying the common content. The processor is further configured to carry out signal processing on the selected data blocks in dependence on the associated quality information. The output is configured to output the selected and error concealed data blocks. The quality information associated with each data block corresponds to a quality experienced by a receive path at the time of reception of each data block.

A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.

A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.

An apparatus and method are provided. A first buffer is configured to store a first packet stream, the first buffer comprising a first read pointer pointing to a first position in the first packet stream. A second buffer is configured to store a second packet stream. The second packet stream corresponds to the first packet stream and the second buffer comprises a second read pointer. A controller is configured to determine a second position in the second packet stream that corresponds to the first position in the first packet stream and adjust the second read pointer to point to the second position.

The present disclosure relates to a content supply device, a content supply method, a program, and a content supply system, wherein an adaptive streaming technique based on DASH is extended to enable the use of broadcast distribution and multicast distribution. A content supply device according to a first aspect of the present disclosure is a content supply device that supplies streaming data of content in accordance with an adaptive streaming technique, the device including: an HTTP distribution unit that makes the streaming data into a file for each segment and distributes by HTTP the obtained segment file through a bidirectional communication network; a multicast distribution unit that distributes the segment file by multicast; and a meta file generation unit that generates a meta file in which information for receiving the segment file to be subjected to the HTTP distribution or the multicast distribution is described. The present disclosure is applicable to the system for streaming the content.

The present disclosure relates to a content supply device, a content supply method, a program, and a content supply system, wherein an adaptive streaming technique based on DASH is extended to enable the use of broadcast distribution and multicast distribution. A content supply device according to a first aspect of the present disclosure is a content supply device that supplies streaming data of content in accordance with an adaptive streaming technique, the device including: an HTTP distribution unit that makes the streaming data into a file for each segment and distributes by HTTP the obtained segment file through a bidirectional communication network; a multicast distribution unit that distributes the segment file by multicast; and a meta file generation unit that generates a meta file in which information for receiving the segment file to be subjected to the HTTP distribution or the multicast distribution is described. The present disclosure is applicable to the system for streaming the content.

A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.

A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.