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    Method and apparatus for improving the quality of multimedia streaming service
    3.
    发明授权
    Method and apparatus for improving the quality of multimedia streaming service 有权
    提高多媒体流服务质量的方法和装置

    公开(公告)号：US08694669B2

    公开(公告)日：2014-04-08

    申请号：US13187113

    申请日：2011-07-20

    Applicant: Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    Inventor： Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    IPC: G06F15/16

    CPC classification number: H04L65/4069 ,  H04L47/2416 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L67/02 ,  H04L67/42 ,  H04L69/16 ,  H04N21/234327 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

    Abstract: In an apparatus for providing a multimedia streaming service, a server transmits a Media Presentation Description (MPD) including information about media data to a client, receives a partial request message requesting a part of media data having a range according to a defined range in the MPD, and transmits to the client a segment having the range in response to the partial request message. The segment includes at least one fragment, segment index information indicating the position of the at least one fragment in the segment, and fragment index information indicating the position of each of a plurality of samples included in the at least one fragment.

    Abstract translation: 在用于提供多媒体流服务的设备中，服务器将包括关于媒体数据的信息的媒体呈现描述（MPD）发送给客户端，接收部分请求消息，该部分请求消息请求具有根据所定义的范围内的范围的一部分媒体数据 MPD，并且向客户端发送具有响应于部分请求消息的范围的段。 片段包括至少一个片段，指示片段中至少一个片段的位置的片段索引信息，以及指示包含在至少一个片段中的多个样本中的每一个的位置的片段索引信息。

    METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA STREAMING SERVICE
    6.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA STREAMING SERVICE 有权
    提供多媒体流媒体服务的方法和装置

    公开(公告)号：US20120023254A1

    公开(公告)日：2012-01-26

    申请号：US13187113

    申请日：2011-07-20

    Applicant: Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    Inventor： Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    IPC: G06F15/16

    CPC classification number: H04L65/4069 ,  H04L47/2416 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L67/02 ,  H04L67/42 ,  H04L69/16 ,  H04N21/234327 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

    Abstract: In an apparatus for providing a multimedia streaming service, a server transmits a Media Presentation Description (MPD) including information about media data to a client, receives a partial request message requesting a part of media data having a range according to a defined range in the MPD, and transmits to the client a segment having the range in response to the partial request message. The segment includes at least one fragment, segment index information indicating the position of the at least one fragment in the segment, and fragment index information indicating the position of each of a plurality of samples included in the at least one fragment.

    Abstract translation: 在用于提供多媒体流服务的设备中，服务器将包括关于媒体数据的信息的媒体呈现描述（MPD）发送给客户端，接收部分请求消息，该部分请求消息请求具有根据所定义的范围内的范围的一部分媒体数据 MPD，并且向客户端发送具有响应于部分请求消息的范围的段。 片段包括至少一个片段，指示片段中至少一个片段的位置的片段索引信息，以及指示包含在至少一个片段中的多个样本中的每一个的位置的片段索引信息。

    Acrylic impact modifier prepared by multi-stage polymerization and method for preparing the same
    8.
    发明授权
    Acrylic impact modifier prepared by multi-stage polymerization and method for preparing the same 有权
    通过多级聚合制备的丙烯酸类抗冲改性剂及其制备方法

    公开(公告)号：US07173082B2

    公开(公告)日：2007-02-06

    申请号：US10472593

    申请日：2003-01-14

    Applicant: Jeong-Heon Ahn ,  Chang-Sun Han ,  Yong-Hun Lee ,  Seon-Hee Han ,  Kwang-Jin Lee ,  Hyung-Jun Son

    Inventor： Jeong-Heon Ahn ,  Chang-Sun Han ,  Yong-Hun Lee ,  Seon-Hee Han ,  Kwang-Jin Lee ,  Hyung-Jun Son

    IPC: C08F285/00 ,  C08F265/06 ,  C08F2/16 ,  C08L51/04 ,  C08L27/06

    CPC classification number: C08F285/00 ,  C08L27/06 ,  C08L51/003 ,  Y10S525/902 ,  C08F220/18 ,  C08L2666/24

    Abstract: The invention relates to an acrylic impact modifier having a core-shell structure that provides an acrylic impact modifier composition comprising (a) a rubber core containing an alkyl acrylate polymer comprising at least two layers having different cross-linking densities, and (b) a shell containing an alkyl methacrylate polymer; to a process for the preparation of the acrylic impact modifier; and to a poly(vinyl chloride) composition comprising it. The acrylic impact modifier imparting excellent impact resistance was invented by employing multi-stage polymerization and at the same time by controlling the swelling index of rubber particles by changing the degree of cross-linking from stage to stage. And the poly(vinyl chloride) comprising the impact modifier of the present invention has good weatherability as well as excellent impact strength.

    Abstract translation: 本发明涉及具有提供丙烯酸类抗冲改性剂组合物的核 - 壳结构的丙烯酸类抗冲击改性剂，其包含（a）含有至少两层具有不同交联密度的丙烯酸烷基酯聚合物的橡胶芯，和（b） 壳含有甲基丙烯酸烷基酯聚合物; 涉及制备丙烯酸类抗冲改性剂的方法; 和包含它的聚（氯乙烯）组合物。 通过采用多级聚合法，发明了赋予耐冲击性优异的丙烯酸类抗冲击改性剂，同时通过改变交联程度从阶段到控制橡胶粒子的溶胀指数。 并且包含本发明的抗冲改性剂的聚（氯乙烯）具有良好的耐候性以及优异的冲击强度。

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