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    Method and device for reading MPEG recorded data transmitted on an IEEE 1394 bus
    1.
    发明授权
    Method and device for reading MPEG recorded data transmitted on an IEEE 1394 bus 有权
    用于读取在IEEE 1394总线上发送的MPEG记录数据的方法和装置

    公开(公告)号：US07577339B2

    公开(公告)日：2009-08-18

    申请号：US10332428

    申请日：2001-07-16

    申请人： Serge Defrance ,  Jean-Charles Guillemot ,  Olivier Marlec

    发明人： Serge Defrance ,  Jean-Charles Guillemot ,  Olivier Marlec

    IPC分类号： H04N7/26 ,  H04N5/91

    CPC分类号： H04N5/765 ,  H04N5/775

    摘要： The process is characterized in that it comprises: a step of reading tags recorded together with the packets, these tags defining the instants of arrival of the data packets to be recorded, on the basis of a tagging clock (8), a step of comparing the tags with values counted (9) on the basis of a transfer clock (8) for determining the instants of transfer on the bus of the data read from the record carrier, the frequencies of operation of the said tagging and transfer clocks being such that the maximum deviation between these frequencies, added to the maximum drift of the MPEG system clock, is, in proportion to the nominal values, of the order of or less than the drift of the system clock specified in the standard. Application to the storage of MPEG data.

    摘要翻译： 该过程的特征在于它包括：读取与分组一起记录的标签的步骤，这些标签基于标记时钟（8）定义要记录的数据分组的到达时刻，比较步骤 基于用于确定总线上从记录载体读取的数据的传输时刻的传送时钟（8）计数值（9）的标签，所述标记和传送时钟的操作频率使得 与MPEG系统时钟的最大漂移相加的这些频率之间的最大偏差与标准中指定的系统时钟的漂移的顺序成正比。 应用于存储MPEG数据。

    Method and device for video data transmission for implementing special modes
    3.
    发明授权
    Method and device for video data transmission for implementing special modes 失效
    用于实现特殊模式的视频数据传输方法和装置

    公开(公告)号：US07539213B2

    公开(公告)日：2009-05-26

    申请号：US10521384

    申请日：2003-07-11

    申请人： Jean-Charles Guillemot ,  Claude Chapel ,  Olivier Marlec

    发明人： Jean-Charles Guillemot ,  Claude Chapel ,  Olivier Marlec

    IPC分类号： H04L12/28

    CPC分类号： H04N5/783 ,  H04N5/765 ,  H04N5/775 ,  H04N9/8042 ,  H04N9/8063 ,  H04N21/42607 ,  H04N21/4305 ,  H04N21/43615 ,  H04N21/43622 ,  H04N21/43632 ,  H04N21/6143 ,  H04N21/6587

    摘要： The invention concerns a method comprising a step which consists in comparing a label to a value counted from a transfer clock to define the transfer time on the bus of a packet read on a recording medium. The invention is characterized in that for implementing a special mode or trick mode, it further comprises the following steps: calculating a difference between two consecutive packets based on the values of recorded labels; calculating an offset value based on said difference and parameters received on the bus defining the special mode; adding said offset value to the label value of the transmitted packet to obtain a new label value defining the transfer time on the bus of the following packet to be transmitted. The invention is applicable to the storage of MPEG data.

    摘要翻译： 本发明涉及一种方法，其包括步骤：将标签与从传送时钟计数的值进行比较，以定义在记录介质上读取的分组的总线上的传送时间。 本发明的特征在于，为了实现特殊模式或特技模式，它还包括以下步骤：基于记录的标签的值计算两个连续分组之间的差异; 基于在所述总线上接收到的所述差异和定义所述特殊模式的参数来计算偏移值; 将所述偏移值添加到所发送的分组的标签值，以获得定义要发送的以下分组的总线上的传送时间的新标签值。 本发明适用于MPEG数据的存储。

    PRECISE COMPENSATION OF VIDEO PROPAGATION DURATION
    4.
    发明申请
    PRECISE COMPENSATION OF VIDEO PROPAGATION DURATION 失效
    精确的视频传播时间补偿

    公开(公告)号：US20110164178A1

    公开(公告)日：2011-07-07

    申请号：US12975533

    申请日：2010-12-22

    申请人： Patrick Hardy ,  Bruno Derrien ,  Bertrand Provost ,  Olivier Marlec ,  Hubert Prioul

    发明人： Patrick Hardy ,  Bruno Derrien ,  Bertrand Provost ,  Olivier Marlec ,  Hubert Prioul

    IPC分类号： H04N5/06

    CPC分类号： H04N21/4307 ,  H04J3/0661 ,  H04L65/605 ,  H04L65/607 ,  H04L65/80 ,  H04N21/8547

    摘要： The invention relates to the field of the synchronization of data delivery onto equipments connected over a packet switching network, in particular when the equipments are devoted to video and audio data or Auxiliary data linked to processing and are connected over a local area network for forming a video/audio production studio.More precisely the invention concerns a data inserter device for inserting a timestamp in packets, and a delay compensating device for extracting said timestamp and compensating the delivery delay and in particular the jitter, the network delay and the packet generation duration or any additional user delay.

    摘要翻译： 本发明涉及在分组交换网络上连接的设备上的数据传送同步的领域，特别是当设备专用于视频和音频数据或链接到处理的辅助数据时，并且通过局域网连接以形成 视频/音频制作工作室。 更准确地说，本发明涉及用于在分组中插入时间戳的数据插入器装置，以及用于提取所述时间戳并补偿传送延迟，特别是抖动，网络延迟和分组产生持续时间或任何附加用户延迟的延迟补偿装置。

    Precise compensation of video propagation duration
    6.
    发明授权
    Precise compensation of video propagation duration 失效
    精确补偿视频传播时间

    公开(公告)号：US08774287B2

    公开(公告)日：2014-07-08

    申请号：US12975533

    申请日：2010-12-22

    申请人： Patrick Hardy ,  Bruno Derrien ,  Bertrand Provost ,  Olivier Marlec ,  Hubert Prioul

    发明人： Patrick Hardy ,  Bruno Derrien ,  Bertrand Provost ,  Olivier Marlec ,  Hubert Prioul

    IPC分类号： H04N7/12

    CPC分类号： H04N21/4307 ,  H04J3/0661 ,  H04L65/605 ,  H04L65/607 ,  H04L65/80 ,  H04N21/8547

    摘要： The invention relates to the field of the synchronization of data delivery onto equipments connected over a packet switching network, in particular when the equipments are devoted to video and audio data or Auxiliary data linked to processing and are connected over a local area network for forming a video/audio production studio.More precisely the invention concerns a data inserter device for inserting a timestamp in packets, and a delay compensating device for extracting said timestamp and compensating the delivery delay and in particular the jitter, the network delay and the packet generation duration or any additional user delay.

    摘要翻译： 本发明涉及在分组交换网络上连接的设备上的数据传送同步的领域，特别是当设备专用于视频和音频数据或链接到处理的辅助数据时，并且通过局域网连接以形成 视频/音频制作工作室。 更准确地说，本发明涉及用于在分组中插入时间戳的数据插入器装置，以及用于提取所述时间戳并补偿传送延迟，特别是抖动，网络延迟和分组产生持续时间或任何附加用户延迟的延迟补偿装置。