Patent application number | Description | Published |
20100215099 | MULTIPLE QUALITY IMAGE CONTENTS SERVICE SYSTEM AND UPDATE METHOD THEREOF - An image contents service system includes a first encoder encoding an original image data into a first-layer data, and a second encoder modulized to encode the original image data into a second-layer data by referencing the first-layer data, whereby image contents upgraded more than the first-layer data are provided. Accordingly, the image contents service system can minimize the waste of frequency bands and resources of an encoding system in the upgrade, and can provide a multiple quality contents service. | 08-26-2010 |
20100260179 | APPARATUS AND METHOD FOR ADAPTIVE STREAMING OF SCALABLE CONTENTS USING MULTICAST AND UNICAST TRANSMISSION CONCURRENTLY - Disclosed is an adaptive transmission device and method of transmitting scalable contents by simultaneously utilizing a multicast transmission and a unicast transmission. The method of transmitting scalable contents in a transmission server includes receiving transmission status information from terminals, determining a transmission policy corresponding to the transmission status of each of the terminals, transmitting a basic transmission group of the scalable contents to the terminals via a multicast or a broadcast, and transmitting an adaptive transmission group of the scalable contents corresponding to the transmission policy to each corresponding terminal via a unicast. | 10-14-2010 |
20100322224 | SERVER, TERMINAL AND METHOD FOR END TO END CHANNEL CAPACITY ESTIMATION IN HIGH SPEED DOWNLINK PACKET ACCESS NETWORK - A server and a terminal enabling channel capacity estimation in a High-Speed Downlink Packet Access (HSDPA) network and a method of controlling the server and the terminal are provided. More particularly, when transmitting data between both terminals in an HSDPA network, a server end may transmit a packet pair of the same size and a client end may measure a time difference between the packet pair and thereby proceed filtering. Through this, it is possible to estimate the channel capacity. Therefore, it is possible to prevent data transmission from exceeding the channel capacity in the HSDPA to thereby prevent a packet loss and to effectively use a channel. | 12-23-2010 |
20110138019 | SYSTEM AND METHOD FOR PROVIDING MULTI-LAYERED CONTENT USING PLURALITY OF SERVERS - Provided is a system and method for providing a multi-layered content that may divide a content encoded using a scalable coding scheme, into a plurality of quality groups having different quality levels, assign corresponding servers to the plurality of quality groups, and transmitting the quality groups, increasing a number of transmission sessions. | 06-09-2011 |
20110170451 | APPARATUS AND METHOD FOR ESTIMATING CHANNEL CAPACITY OF END-TO-END TERMINAL - Disclosed is an apparatus and method for estimating a channel capacity of an end-to-end terminal. The channel capacity estimating method of the end-to-end terminal includes calculating an average value of channel capacities for each size of data packets, the data packets varying in size, measuring an actual channel capacity with respect to the data packets, and deriving a linear model of a channel capacity based on the size of the data packets using the average value of the channel capacities and the actual channel capacity. | 07-14-2011 |
20110176557 | APPARATUS AND METHOD FOR CONTROLLING BUFFER USING PLAY TIME AS IMAGE TRANSMISSION - Disclosed is a buffer controlling apparatus and method using a play time during image transmission. The buffer controlling method using the play time during the image transmission includes controlling a transmission bit rate with respect to packets to be transmitted to a reception buffer based on bit capacity with respect to packets of the reception buffer, controlling a number of transmission frames with respect to the packets to be transmitted to the reception buffer based on a play time with respect to the packets of the reception buffer, and generating the packets to be transmitted corresponding to the transmission bit rate and the number of the transmission frames, and transmitting the generated packets to the reception buffer. | 07-21-2011 |
20110176643 | APPARATUS AND METHOD FOR RECEIVING LAYERED DATA THROUGH MULTIPLE MULTICAST CHANNEL - Disclosed are an apparatus and a method for receiving layered data transmitted over a multiple multicast channel. The layered data receiving method includes receiving the data including a count number, arranging the received data in an order of reception and storing in a jitter buffer, rearranging the data in an order of the count number and storing in a data buffer. | 07-21-2011 |
20120014396 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING MULTIPLEXED PACKET STREAM OVER SINGLE TRANSMISSION CHANNEL - A method for transmitting a main packet stream generated by multiplexing a plurality of substreams, using a single transmission channel, includes packeting each of the plurality of substreams and generating substream packets; allocating substream sequence information to the substream packets according to a sequence in which the substream packets are generated; allocating main packet stream sequence information to the substream packets according to a sequence in which the substream packets are inputted; and multiplexing inputted substream packets and generating the main packet stream. | 01-19-2012 |
20120144443 | SYSTEM AND METHOD FOR EXECUTING SOURCE BUFFERING FOR MULTIPLE INDEPENDENT GROUP TRANSMISSION OF REAL-TIME ENCODED SCALABE VIDEO CONTENTS - A system and method for performing source buffering to transmit a real-time encoded scalable video to multiple transmission groups are provided. A streaming system for providing a scalable video bitstream for each multicast group may include an encoder source buffer to receive a scalable video bitstream and to store the received scalable video bitstream, and a plurality of subgroup transmitters, each to receive data of different layers in the stored scalable video bitstream from the encoder source buffer, to packetize the received data, and to transmit the packetized data to a terminal. | 06-07-2012 |
20130094594 | METHOD FOR CONFIGURING AND TRANSMITTING M-UNIT - A method for configuring and transmitting an M-unit in a system are provided. The method for configuring an M-unit in a system includes receiving an MFU (Media Fragment Unit) from a media encoder, and configuring an M-unit including the MFU in payload, wherein the M-unit is configured to include an M-unit header including information required to be discriminated in every M-unit and a reference header including information not dependent on the M-unit. | 04-18-2013 |
20130124699 | APPARATUS AND METHOD FOR TRANSCEIVING A STREAMING SERVICE - Provided is an apparatus and method for transmitting and receiving a streaming service. The apparatus and method for transmitting and receiving a streaming service may use a light multimedia file suitable for a Hypertext Transfer Protocol (HTTP) streaming service. Using an HTTP hint track, an International Organization for Standardization (ISO) file generated in a non-interleaved storing scheme that is unsuitable for an HTTP streaming service may be converted into an ISO file based on an interleaved storing scheme that is suitable for an HTTP streaming service. An ISO file may include multiple media tracks for supporting multiple bitrates and resolutions. Chunk data of media tracks that provide multiple multimedia qualities may be effectively acquired, and a light ISO file suitable for an HTTP streaming service may be generated by storing the acquired chunk data in an interleaved scheme. | 05-16-2013 |
20130124749 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENTS - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include a minBufferTime attribute indicating a minimum amount of initially buffered media content. A terminal may receive content from a server before playback of the content, and may buffer the content by at least the minimum amount. The metadata may include a range attribute that designates a range of a target indicated by a Uniform Resource Locator (URL). The terminal may receive bytes designated by the range attribute from the URL, and may play back the content using the received bytes. | 05-16-2013 |
20130159546 | METHOD AND DEVICE FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata of the content may be efficiently divided for a purpose of use of a terminal based on general media information or specific media information, and may be transmitted to the terminal. A group may include one or more representations of content. The metadata may include a group element, and the group element may provide a summary of attributes of one or more representations included in the group. | 06-20-2013 |
20130166771 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other. | 06-27-2013 |
20130185398 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content. | 07-18-2013 |
20130198790 | METHOD AND APPARATUS FOR ACCESSING SERVICE DISCOVERY METADATA - Provided is a method and apparatus for accessing service discovery metadata. Advance Internet Protocol Television (AIT) devices may access discovery metadata of different schemes using a generic protocol based on the moving picture experts group (MPEG) Extensible Middleware (MXM). According to the above access scheme, end-user devices, description service provider devices, and IPTV service provider devices may exchange metadata. Subsequent modification and addition of a metadata scheme may be supported. | 08-01-2013 |
20130212291 | METHOD AND APPARATUS FOR STREAMING A SERVICE FOR PROVIDING SCALABILITY AND VIEW INFORMATION - A method and apparatus for inserting scalability and view information into a Moving Picture Experts Group-2 (MPEG-2) Transport Stream (TS) header are provided. When a scalable video or multi-view video is transmitted using an MPEG-2 system, scalability information or view information regarding the scalable video or multi-view video in a payload in a TS level may be used. Using the scalability information or view information, the TS-packetized scalable video or multi-view video may be efficiently adapted to various terminal performances, various network characteristics, a specific user preference, and the like. | 08-15-2013 |
20130282871 | STREAMING SERVICE TRANSMITTING/RECEIVING DEVICE AND METHOD - Provided is an apparatus and method for transmitting and receiving a streaming service. An inter-arrival jitter may correspond to a delay variation in arrival time between TCP packets arriving at an apparatus for receiving the streaming service. The apparatus for receiving the streaming service may determine a de-jitter buffering time to absorb a network jitter before TS packets in a TCP packet is input to a T-STD buffer model. Based on the de-jitter buffering time, an initial playout delay lime at the apparatus for receiving the streaming service may be determined. | 10-24-2013 |
20140115649 | APPARATUS AND METHOD FOR PROVIDING REALISTIC BROADCASTING - Provided is an apparatus for providing realistic broadcasting, the apparatus including a realistic broadcasting platform configured to divide received content into one or more modalities, curate the content with respect to each of the divided modalities, and generate a scenario based on the curated content and information about one or more realistically reproducing devices which are currently available; and an immersive media gateway configured to generate the information about one or more realistically reproducing devices, and provide a realistic broadcasting service to a user based on the curated content and the information about one or more realistically reproducing devices. | 04-24-2014 |
20140122738 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other. | 05-01-2014 |
20140122739 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other. | 05-01-2014 |
20140280785 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content. | 09-18-2014 |
20140281013 | APPARATUS AND METHOD FOR PROVIDING STREAMING CONTENT - A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of media content are provided. The media content may include a sequence of one or more periods. The metadata may include a start time attribute and/or a duration attribute of each of the periods. The metadata may determine a start time of each of the periods, and a start time of each of segments included in each of the periods. A terminal may access segments included in each of the periods, may decode and render data of media content included in the segments, and may play back the media content. | 09-18-2014 |
20140282799 | METHOD FOR TRANSMITTING MEDIA DATA VIA A HETEROGENEOUS IP NETWORK INDEPENDENTLY OF A MEDIA CODEC - The present invention relates to a method for transmitting media data via a heterogeneous IP network, the method efficiently transmitting, independently of a specific media codec, media streaming in the format of a coded media fragment data unit, including a header of a media unit having a minimized size and a simplified structure. | 09-18-2014 |
20140344875 | METHOD FOR TRANSMITTING MEDIA DATA HAVING ACCESS UNIT DIVIDED INTO MEDIA FRAGMENT UNITS IN HETEROGENEOUS NETWORK - The present invention generates a media processing unit (MPU) from the component units of media fragment units in configuring a media processing unit, thus achieving the effects of packaging media data corresponding to various media data structures. | 11-20-2014 |
20150020138 | MMT ASSET STRUCTURE FOR SUPPORTING RANDOM ACCESS TO SYSTEMS FOR TRANSMITTING CODED MEDIA DATA IN HETEROGENEOUS NETWORKS, AND METHOD AND APPARATUS FOR GENERATING SAME - The present invention relates to an MMT asset structure providing free access to an M-unit existing in a specific MMT asset by using an indicator indicating the position of the M-unit and an indicator indicating the size of the M-unit in an MMT asset configuration, and to a method and apparatus for generating same. | 01-15-2015 |