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    • 1. 发明授权
    • SAF synchronization layer packet structure and server system therefor
    • SAF同步层分组结构及其服务器系统
    • US08472477B2
    • 2013-06-25
    • US11658101
    • 2005-01-17
    • Ye-Sun JoungWon-Sik CheongJihun ChaKyuheon KimYoung-Kwon Lim
    • Ye-Sun JoungWon-Sik CheongJihun ChaKyuheon KimYoung-Kwon Lim
    • H04J3/00
    • H04L12/56H04N21/23412H04N21/234318H04N21/4307H04N21/44012H04N21/8547
    • Provided is a Simple Aggregation Format (SAF) synchronization packet structure including a SAF synchronization packet header and a SAF synchronization packet payload and multiplexing diverse element streams which include a scene description elementary stream. The SAF synchronization packet header includes time information related to an access unit included in the SAF synchronization packet payload, and the SAF synchronization packet payload includes header information on the access unit and payload information indicating the access unit. Since the present invention can multiplex diverse elementary streams effectively and simply into one data stream, synchronized data transmission is possible. Since the present invention accommodates a synchronization layer packet of the MPEG-4 system, it can be easily integrated with the MPEG-4 system and utilize the advantage of the MPEG-4 synchronization layer packet such as the concept of an access unit or a degradation priority.
    • 提供了包括SAF同步分组报头和SAF同步分组有效载荷的简单聚合格式(SAF)同步分组结构,并且复用包括场景描述基本流的各种元素流。 SAF同步分组报头包括与包含在SAF同步分组有效载荷中的接入单元相关的时间信息,SAF同步分组有效负载包括关于接入单元的报头信息和指示接入单元的有效载荷信息。 由于本发明可以将不同的基本流有效且简单地复用到一个数据流中,所以可以进行同步的数据传输。 由于本发明容纳了MPEG-4系统的同步层分组,所以可以容易地与MPEG-4系统集成,并利用MPEG-4同步层分组的优点,诸如接入单元或降级的概念 优先。
    • 4. 发明授权
    • Method and apparatus for encoding/decoding point sequences on laser binary representation
    • 用于对激光二进制表示的点序列进行编码/解码的方法和装置
    • US07782233B2
    • 2010-08-24
    • US11575983
    • 2005-10-13
    • Ye Sun JoungJi Hun ChaWon Sik CheongKyu Heon KimYoung Kwon Lim
    • Ye Sun JoungJi Hun ChaWon Sik CheongKyu Heon KimYoung Kwon Lim
    • H03M7/00
    • H03M7/40H04N19/12H04N19/13H04N19/146H04N19/46
    • Provided are a method and an apparatus for selectively encoding/decoding point sequences to maximize bit efficiency of a lightweight application scene representation (LASeR) binary stream. The point sequence encoding method includes the steps of: for each point sequence, (a) selecting one of exponential-Golomb (EG) encoding and fixed length (FL) encoding schemes; (b) when the FL encoding scheme is selected, encoding the point sequence using the FL encoding scheme to generate a binary stream; and (c) when the EG encoding scheme is selected, encoding the point sequence using the EG encoding scheme to generate a binary stream. The binary stream includes a flag indicating which encoding scheme is selected and a parameter k, with which the EG encoding can be most effectively performed, when the EG encoding scheme is selected. According to the encoding method, LASeR point sequences can be efficiently encoded and, during a decoding process, a large overhead is not incurred to a decoder (terminal).
    • 提供了一种用于选择性地编码/解码点序列以最大化轻量级应用场景表示(LASeR)二进制流的比特效率的方法和装置。 点序列编码方法包括以下步骤:对于每个点序列,(a)选择指数哥伦布(EG)编码和固定长度(FL)编码方案之一; (b)当选择FL编码方案时,使用FL编码方案对点序列进行编码以生成二进制流; 和(c)当选择EG编码方案时,使用EG编码方案对点序列进行编码以生成二进制流。 当选择EG编码方案时,二进制流包括指示选择哪个编码方案的标志和可以最有效地执行EG编码的参数k。 根据编码方法,可以有效地编码LASeR点序列,并且在解码处理期间,解码器(终端)不会产生较大的开销。
    • 9. 发明申请
    • Saf Synchronization Layer Packet Structure and Server System Therefor
    • Saf同步层数据包结构及其服务器系统
    • US20090003389A1
    • 2009-01-01
    • US11658101
    • 2005-01-17
    • Ye-Sun JoungWon-Sik CheongJihun ChaKyuheon KimYoung-Kwon Lim
    • Ye-Sun JoungWon-Sik CheongJihun ChaKyuheon KimYoung-Kwon Lim
    • H04J3/06
    • H04L12/56H04N21/23412H04N21/234318H04N21/4307H04N21/44012H04N21/8547
    • Provided is a Simple Aggregation Format (SAF) synchronization packet structure including a SAF synchronization packet header and a SAF synchronization packet payload and multiplexing diverse element streams which include a scene description elementary stream. The SAF synchronization packet header includes time information related to an access unit included in the SAF synchronization packet payload, and the SAF synchronization packet payload includes header information on the access unit and payload information indicating the access unit. Since the present invention can multiplex diverse elementary streams effectively and simply into one data stream, synchronized data transmission is possible. Since the present invention accommodates a synchronization layer packet of the MPEG-4 system, it can be easily integrated with the MPEG-4 system and utilize the advantage of the MPEG-4 synchronization layer packet such as the concept of an access unit or a degradation priority.
    • 提供了包括SAF同步分组报头和SAF同步分组有效载荷的简单聚合格式(SAF)同步分组结构,并且复用包括场景描述基本流的各种元素流。 SAF同步分组报头包括与包含在SAF同步分组有效载荷中的接入单元相关的时间信息,SAF同步分组有效负载包括关于接入单元的报头信息和指示接入单元的有效载荷信息。 由于本发明可以将不同的基本流有效且简单地复用到一个数据流中,所以可以进行同步的数据传输。 由于本发明容纳了MPEG-4系统的同步层分组,所以可以容易地与MPEG-4系统集成,并利用MPEG-4同步层分组的优点,诸如接入单元或降级的概念 优先。