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78 条记录 (耗时 0.041 秒)

    Communication apparatus, communication method and program
    32.
    发明授权
    Communication apparatus, communication method and program 失效
    通讯设备，通讯方式及程序

    公开(公告)号：US07379479B2

    公开(公告)日：2008-05-27

    申请号：US10254257

    申请日：2002-09-25

    申请人： Yoichi Matsumura ,  Katsumi Tahara ,  Hiroaki Seto ,  Eisaburo Itakura ,  Hiroshi Meguro

    发明人： Yoichi Matsumura ,  Katsumi Tahara ,  Hiroaki Seto ,  Eisaburo Itakura ,  Hiroshi Meguro

    IPC分类号： H04J3/06

    CPC分类号： H04N21/64307 ,  H04N21/4305

    摘要： The present invention is an apparatus and method to remove delay fluctuations generated on a plurality of networks.A reception apparatus 22 receives ATM cells transmitted through a network 4-1 and a network 4-2, converting the cells into a transport stream. At that time, the reception apparatus 22 expresses a PCR packet's timing of arrival at the reception apparatus 22 by a count value obtained as a result of counting the number of clock pulses (clock pulses Nr) synchronous with a network clock signal of the network 4-2. The reception apparatus 22 also computes a new PCR value W on the basis of the count value and the phase-difference information used as synchronization information. The reception apparatus 22 then computes a new PCR value X on the basis of an original PCR value E recorded from the beginning on the encoding side and the PCR value W, newly recording the PCR value X.

    摘要翻译： 本发明是一种消除在多个网络上产生的延迟波动的装置和方法。 接收装置22接收通过网络1-4发送的ATM信元和网络4-2，将小区转换成传输流。 此时，接收装置22通过计数与网络4的网络时钟信号同步的时钟脉冲数（时钟脉冲Nr）而得到的计数值来表示PCR分组到达接收装置22的定时 - 2。 接收装置22还基于用作同步信息的计数值和相位差信息来计算新的PCR值W. 然后，接收装置22基于从编码侧开始记录的原始PCR值E和新记录PCR值X的PCR值W来计算新的PCR值X.

    Multiplexing apparatus and method, transmitting apparatus and method, and recording medium
    35.
    发明授权
    Multiplexing apparatus and method, transmitting apparatus and method, and recording medium 失效
    复用装置和方法，发送装置和方法以及记录介质

    公开(公告)号：US06754239B2

    公开(公告)日：2004-06-22

    申请号：US09048193

    申请日：1998-03-25

    申请人： Shinji Negishi ,  Katsumi Tahara ,  Noriaki Oishi

    发明人： Shinji Negishi ,  Katsumi Tahara ,  Noriaki Oishi

    IPC分类号： H04J302

    CPC分类号： G11B27/034 ,  G11B27/032 ,  G11B2220/20 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/90 ,  H04N21/42646 ,  H04N21/4334

    摘要： A multiplexing apparatus and method, a transmitting apparatus and method, and a recording medium arranged to prevent a delay of one of multiplexing scheduling processing and multiplexing processing in accordance with a schedule obtained by the multiplexing scheduling processing from influencing the other of these processings. A scheduler calculates schedule information on the basis of access unit information from an encoder and stores the calculated schedule information by supplying it to an intermediate buffer. If some additional data is to be multiplexed, the scheduler also calculates the additional data and stores the calculated additional data by supplying it to an intermediate buffer. A bit stream multiplexer reads out schedule information from the schedule information intermediate buffer, selects data designated by the schedule information from an elementary stream from the encoder and from additional data stored in the additional data intermediate buffer, and outputs the data as a multiplexed stream.

    摘要翻译： 一种多路复用装置和方法，发送装置和方法以及记录介质，被配置为根据由复用调度处理获得的调度来防止多路复用调度处理和多路复用处理之一的延迟影响这些处理中的另一个。 调度器基于来自编码器的访问单元信息来计算调度信息，并且通过将调度信息提供给中间缓冲器来存储所计算的调度信息。 如果要复用一些附加数据，则调度器还计算附加数据，并通过将计算的附加数据提供给中间缓冲器来存储所计算的附加数据。 比特流多路复用器从调度信息中间缓冲器读出调度信息，从编码器的基本流和从附加数据中间缓冲器中存储的附加数据中选择由调度信息指定的数据，并将该数据作为多路复用流输出。

    Communication apparatus, communication method and storage medium
    36.
    发明授权
    Communication apparatus, communication method and storage medium 失效
    通信装置，通信方式和存储介质

    公开(公告)号：US06347119B2

    公开(公告)日：2002-02-12

    申请号：US09737360

    申请日：2000-12-15

    申请人： Youichi Matsumura ,  Katsumi Tahara ,  Hiroaki Seto ,  Eisaburo Itakura

    发明人： Youichi Matsumura ,  Katsumi Tahara ,  Hiroaki Seto ,  Eisaburo Itakura

    IPC分类号： H04B166

    CPC分类号： H04N21/64307 ,  H04J3/0632 ,  H04L2012/5664 ,  H04N21/242 ,  H04N21/4305 ,  H04Q11/0478

    摘要： Synchronous information indicates a difference (&bgr;) between a PCR value E and a counter value N (=3240000), if the third PCR packet is assumed to arrive at a transmitting apparatus 201 at the time (time t1) the count value N becomes 3240000, on the basis of a difference (&agr;) between the PCR value E3 and the count value N3, both generated while as many clocks as (count value N3—reference clock value B) are being counted. Hence, the delay fluctuation generated on a network can be eliminated.

    摘要翻译： 同步信息表示PCR值E和计数器值N（= 3240000）之间的差（β），如果假设第三PCR分组在时间（时间t1）到达发送装置201，则计数值N变为3240000 基于PCR值E3和计数值N3之间的差（α），同时计数与（计数值N3-参考时钟值B）一样多的时钟。 因此，可以消除网络上产生的延迟波动。