Abstract: Provided are a method and apparatus for allocating differential bandwidth for each screen region by using image complexity information. According to an embodiment, a method and apparatus for receiving streaming data request a server for information relating to content to differentially determine quality of a plurality of regions divided from a predetermined frame of the content according to a network state; among at least one segment for each region encoded with at least one quality for each of the plurality of regions, receive a segment for each region encoded according to the quality for each region determined based on the information relating to the content from the server over a network; generate a reconstruction image for each region by decoding the segment for each region; and merge and render the reconstruction image for each region.

Abstract: Provided is a method of multiple connection providing a service by a client, the method including: executing at least one application for providing a service; referring to a multiple connection history including information about the number of multiple connections and a size of a sub-segment; determining the number of multiple connections and the size of the sub-segment based on the referred-to multiple connection history; and requesting the multiple connections according to the determined number of multiple connections and the determined size of the sub-segment.

Abstract: Provided is a method of multiple connection providing a service by a client, the method including: executing at least one application for providing a service; referring to a multiple connection history including information about the number of multiple connections and a size of a sub-segment; determining the number of multiple connections and the size of the sub-segment based on the referred-to multiple connection history; and requesting the multiple connections according to the determined number of multiple connections and the determined size of the sub-segment.

Abstract: Disclosed is a method, performed by a client, of scheduling reception of media contents, the method including determining a plurality of network connections enabling the reception of the media contents between the client and a server, predicting a buffering timing at which segments of the media contents received in a unit of a buffer size of the client are received through some of the determined plurality of network connections, generating scheduling information for allocating the segments of the media contents to be allocated to the some network connections to each of the plurality of network connections at the predicted buffering timing, and transmitting the generated scheduling information to the server.

Abstract: Provided is a method of multiple connection providing a service by a client, the method including: executing at least one application for providing a service; referring to a multiple connection history including information about the number of multiple connections and a size of a sub-segment; determining the number of multiple connections and the size of the sub-segment based on the referred-to multiple connection history; and requesting the multiple connections according to the determined number of multiple connections and the determined size of the sub-segment.

Abstract: A method of controlling an accelerator for transmitting media content received from a media server to at least one media player, includes receiving from the at least one media player a request for the media content; determining an operational state of the at least one media player; determining a plurality of priorities corresponding to a plurality of pieces of media metadata stored in the accelerator based on the determined operational state, the plurality of pieces of media metadata corresponding to the requested media content; and managing the plurality of pieces of media metadata based on the plurality of priorities.

Abstract: Provided are a method and apparatus for allocating differential bandwidth for each screen region by using image complexity information. According to an embodiment, a method and apparatus for receiving streaming data request a server for information relating to content to differentially determine quality of a plurality of regions divided from a predetermined frame of the content according to a network state; among at least one segment for each region encoded with at least one quality for each of the plurality of regions, receive a segment for each region encoded according to the quality for each region determined based on the information relating to the content from the server over a network; generate a reconstruction image for each region by decoding the segment for each region; and merge and render the reconstruction image for each region.

Abstract: A method and an apparatus acting as a server for estimating parameters of data transfer across a communication network are provided. The server includes a transceiver which enables data transfer operations and an estimator which estimates throughput as one of the parameters of the data transfer operations. The estimator further determines an indicator value of the throughput corresponding to an estimated bottleneck bandwidth (eBnBW) calculated from data traffic measurements. The indicator value is attributable to and indicates optimal parameters of the data transfer operations, calculated from measurements associated with the data traffic. The server apparatus includes a processor, in communication with the transceiver and the estimator, and the processor is configured to control for preparing succeeding data transfer operations to a client apparatus through the communication network based on the estimated bottleneck bandwidth determined by the estimator.

Abstract: A contents sharing method includes a step for receiving playback capability information from a client apparatus; a determination step for determining, on the basis of the received playback capability information, whether to carry out partial processing of contents to be supplied to the client apparatus; and a transmission step for processing some frames in the contents to be played in the client apparatus and transmitting the processed frames to the client apparatus if it is determined that the partial processing is to be performed. Accordingly, contents may be efficiently provided.

Abstract: A method of transmitting data, the method includes transmitting a frame containing at least one data packet; generating at least one detection packet for detecting a loss of a last data packet among the at least one data packet; and in response to the last data packet of the frame being transmitted, transmitting the at least one detection packet so that the detection packet is transmitted subsequent to the data packet. Whether or not the last data packet is lost is determined by using the detection packet.

Abstract: Provided is a method of multiple connection providing a service by a client, the method including: executing at least one application for providing a service; referring to a multiple connection history including information about the number of multiple connections and a size of a sub-segment; determining the number of multiple connections and the size of the sub-segment based on the referred-to multiple connection history; and requesting the multiple connections according to the determined number of multiple connections and the determined size of the sub-segment.

Abstract: Provided are method and apparatus for transmitting and receiving a multimedia streaming service via a network. The method of providing a multimedia streaming service includes: dividing encoded data of a video including at least one of a two-dimensional (2D) video and a three-dimensional (3D) video into fragments; determining at least one of 3D signaling information for each fragment and relationship information to be used when the video refers to other videos; and continuously transmitting the fragments including the property information regarding the fragments and encoded video data.

Abstract: Disclosed is a method, performed by a client, of scheduling reception of media contents, the method including determining a plurality of network connections enabling the reception of the media contents between the client and a server, predicting a buffering timing at which segments of the media contents received in a unit of a buffer size of the client are received through some of the determined plurality of network connections, generating scheduling information for allocating the segments of the media contents to be allocated to the some network connections to each of the plurality of network connections at the predicted buffering timing, and transmitting the generated scheduling information to the server.

Abstract: A method and an apparatus acting as a server for estimating parameters of data transfer across a communication network are provided. The server includes a transceiver which enables data transfer operations and an estimator which estimates throughput as one of the parameters of the data transfer operations. The estimator further determines an indicator value of the throughput corresponding to an estimated bottleneck bandwidth (eBnBW) calculated from data traffic measurements. The indicator value is attributable to and indicates optimal parameters of the data transfer operations, calculated from measurements associated with the data traffic. The server apparatus includes a processor, in communication with the transceiver and the estimator, and the processor is configured to control for preparing succeeding data transfer operations to a client apparatus through the communication network based on the estimated bottleneck bandwidth determined by the estimator.

Abstract: A method of controlling an accelerator for transmitting media content received from a media server to at least one media player, includes receiving from the at least one media player a request for the media content; determining an operational state of the at least one media player; determining a plurality of priorities corresponding to a plurality of pieces of media metadata stored in the accelerator based on the determined operational state, the plurality of pieces of media metadata corresponding to the requested media content; and managing the plurality of pieces of media metadata based on the plurality of priorities.

Abstract: A contents sharing method includes a step for receiving playback capability information from a client apparatus; a determination step for determining, on the basis of the received playback capability information, whether to carry out partial processing of contents to be supplied to the client apparatus; and a transmission step for processing some frames in the contents to be played in the client apparatus and transmitting the processed frames to the client apparatus if it is determined that the partial processing is to be performed. Accordingly, contents may be efficiently provided.

Abstract: A client apparatus, a server, and a control method thereof are provided. The client apparatus includes a display, a user interface which receives a text input, a communication interface which transmits to the server information related to input text, a storage which receives a result of analysis of the information transmitted from the server and stores the same, and a controller which performs control operations so that, in response to the text input being received via the user interface after the result of the analysis received, the received text is converted based on a stored result of the analysis, before being displayed.

Abstract: A storage file format for replaying an adaptively streamed multimedia stream, a client apparatus using the storage file format, and a method of storing a multimedia stream in the client apparatus are provided. According to the storage file format, meta-information for playing fragments and fragment access meta-information for replaying fragments are added to fragments.

Abstract: Apparatuses and methods for sharing writing information are provided. In one example, the method includes receiving a request to display content from a user, obtaining writing information about the content and content synchronization information that is used to synchronize a location of the writing information with respect to the content, and synchronizing and displaying the writing information and the content based on the content synchronization information.

Abstract: A method of transmitting data, the method includes transmitting a frame containing at least one data packet; generating at least one detection packet for detecting a loss of a last data packet among the at least one data packet; and in response to the last data packet of the frame being transmitted, transmitting the at least one detection packet so that the detection packet is transmitted subsequent to the data packet. Whether or not the last data packet is lost is determined by using the detection packet.