AUTOMATIC COMPENSATION OF A DELAY OF A SYNCHRONIZATION SIGNAL IN A PACKET SWITCHING NETWORK
    11.
    发明申请
    AUTOMATIC COMPENSATION OF A DELAY OF A SYNCHRONIZATION SIGNAL IN A PACKET SWITCHING NETWORK 有权
    分组交换网络中同步信号延迟的自动补偿

    公开(公告)号:US20100135288A1

    公开(公告)日:2010-06-03

    申请号:US12452056

    申请日:2008-06-06

    IPC分类号: H04L12/56

    摘要: The present invention relates to a sending device able to send packets in a network comprising at least two stations, the said device comprising means for extracting image pips on the basis of a synchronization signal, initializing an image counter on the basis of the image pips, initializing a counter every “m” zero-crossings of the image counter, the counter being regulated by a clock produced by the image counter, sampling the counter every period Tsmp, where Tsmp emanates from a time base synchronized on all the stations of the said network; and sending packets containing the samples of the counter in the network. According to the invention, it comprises means for receiving packets containing samples sent by a station of the network as echo to the samples and when samples are received for: evaluating a duration of propagation of samples over an outward-return trip between the said device and the said station; determining a phase shift value Δφ on the basis of the duration of propagation; sending the phase shift value Δφ in the network.

    摘要翻译: 本发明涉及能够在包括至少两个站的网络中发送分组的发送设备,所述设备包括:用于基于同步信号提取图像点的装置,基于图像点初始化图像计数器; 在图像计数器的每个“m”过零点初始化计数器,计数器由图像计数器产生的时钟调节,每个周期Tsmp对计数器进行采样,其中Tsmp从在所述的所有的所有站的同步的时基发出 网络; 并在网络中发送包含计数器样本的数据包。 根据本发明,它包括用于接收包含由网络的站发送的样本的分组的分组作为对样本的回波的装置,以及当接收样本时:评估样本在所述装置与所述装置之间的向外返回行程的传播持续时间 所述车站; 确定相移值&Dgr;&phgr; 在传播的持续时间的基础上; 发送相移值&Dgr;&phgr; 在网络中。

    System for generation of a synchronization signal via stations connected via a packet switching network
    12.
    发明申请
    System for generation of a synchronization signal via stations connected via a packet switching network 有权
    用于通过经由分组交换网络连接的站产生同步信号的系统

    公开(公告)号:US20100042748A1

    公开(公告)日:2010-02-18

    申请号:US12460996

    申请日:2009-07-28

    IPC分类号: G06F15/16

    摘要: The present invention relates to the domain of synchronization of items of equipment connected by a packet switching network. It relates more specifically to a system for generation of a synchronization signal (PIPA, PIPB) and a clock signal (CLK_outA, CLK_outB) by a slave station (SA, SB) connected to a master station (SM) via a packet switching network. The master station (SM) is conformed to produce a master clock signal (CLKM) of frequency FM and a master synchronization signal (PIPM). The master synchronization signal (PIPM) is in phase with the master clock signal (SM). The slave station (SA, SB) comprises the primary synthesis means (SM1A, SM1B) producing a slave periodic signal TICKSA, TICKSB), the periodic signal (TICKSA, TICKSB) is in phase with the master clock signal (CLKM). According to the invention, the slave station (SA, SB) also comprises the secondary means of synthesis (SM2A, SM2B) to synthesize a clock signal (CLK_outA, CLK_outB) and the synchronization signal (PIPA, PIPB) and in that said clock signal (CLK_outA, CLK_outB) and said synchronization signal (PIPA, PIPB) are in phase with said signal (TICKSA, TICKSB).

    摘要翻译: 本发明涉及通过分组交换网络连接的设备项目的同步领域。 更具体地说,涉及通过分组交换网络连接到主站(SM)的从站(SA,SB)产生同步信号(PIPA,PIPB)和时钟信号(CLK_outA,CLK_outB)的系统。 主站(SM)符合产生频率FM的主时钟信号(CLKM)和主同步信号(PIPM)。 主同步信号(PIPM)与主时钟信号(SM)同相。 从站(SA,SB)包括产生从周期信号TICKSA,TICKSB的初级合成装置(SM1A,SM1B),周期信号(TICKSA,TICKSB)与主时钟信号(CLKM)同相。 根据本发明,从站(SA,SB)还包括合成时钟信号(CLK_outA,CLK_outB)和同步信号(PIPA,PIPB)的辅助合成装置(SM2A,SM2B),并且所述时钟信号 (CLK_outA,CLK_outB)和所述同步信号(PIPA,PIPB)与所述信号(TICKSA,TICKSB)同相。

    PLL loop able to recover a synchronisation clock rhythm comprising a temporal discontinuity
    13.
    发明授权
    PLL loop able to recover a synchronisation clock rhythm comprising a temporal discontinuity 有权
    PLL环路能够恢复包括时间不连续性的同步时钟节奏

    公开(公告)号:US08368812B2

    公开(公告)日:2013-02-05

    申请号:US12733495

    申请日:2008-09-05

    IPC分类号: H04N5/04

    摘要: The present invention relates to the domain of video equipment. It relates to a phase-locked loop able to recover the timing of a synchronization signal comprising a temporal discontinuity of amaximum amplitude equal to PCR_Modulus, the loop comprising: a sample comparator comparing the samples and the local samples of a synthesized signal, means for producing the synthesized signal from a corrected signal, a corrector receiving a comparison result delivered by the comparison means and delivering the corrected signal, According to the invention, the comparison means comprises the means to determine a difference in value between the local samples and the samples of the synchronization signal and in that the comparison result has a value that depends on the value ε and on the difference between the value ε and the value PCR_Modulus/2.

    摘要翻译: 本发明涉及视频设备的领域。 它涉及一种能够恢复包括等于PCR_Modulus的最大幅度的时间不连续性的同步信号的定时的锁相环,该环路包括:比较样本和合成信号的局部样本的采样比较器,用于产生 来自校正信号的合成信号,校正器接收由比较装置传送的比较结果并传递校正信号。根据本发明,比较装置包括用于确定局部样本与样本之间的值之差的装置 同步信号,并且比较结果具有取决于值egr的值; 和价值与价值之间的差异 值为PCR_Modulus / 2。

    Under sampled clock signal synchronization aid device and device for reconstructing undersampled clock signals, for a packet-switched network
    14.
    发明授权
    Under sampled clock signal synchronization aid device and device for reconstructing undersampled clock signals, for a packet-switched network 有权
    用于分组交换网络的采样时钟信号同步辅助装置和用于重建欠采样时钟信号的装置

    公开(公告)号:US08018970B2

    公开(公告)日:2011-09-13

    申请号:US12011655

    申请日:2008-07-22

    IPC分类号: H04J3/06

    摘要: A synchronization aid device is part of receiving communication equipment of an IP network, having a primary clock signal consisting of primary clock pulses spaced apart by a first period. This device comprises i) a required to increment its value by one unit on each primary clock pulse and reset its value to zero each time it reaches a value M, ii) detection means required to generate a secondary clock pulse each time the value of the counter is zero, the secondary clock pulses forming a secondary clock signal having a second period equal to M times the first period, and iii) control means required, each time the receiving equipment receives a packet containing at least one first bit having a first value, to initialize the counter with a chosen value.

    摘要翻译: 同步辅助装置是接收IP网络的通信设备的一部分,其具有由主时钟脉冲组成的主时钟信号,所述主时钟脉冲在第一周期间隔开。 该装置包括:i)在每个主时钟脉冲上将其值增加一个单位,并在每次达到一个值M时将其值重新设置为零,ii)每次产生次时钟脉冲时所需的检测装置 计数器为零,次级时钟脉冲形成具有等于第一周期的M倍的第二周期的次级时钟信号,以及iii)控制装置,每当接收设备接收到包含至少一个具有第一值的第一位的分组时, ,用一个选定的值初始化计数器。

    Generation and operation of a double timestamp for transmitting a synchronizing signal in a packet switching network
    15.
    发明授权
    Generation and operation of a double timestamp for transmitting a synchronizing signal in a packet switching network 有权
    用于在分组交换网络中发送同步信号的双时间戳的生成和操作

    公开(公告)号:US07903694B2

    公开(公告)日:2011-03-08

    申请号:US12225019

    申请日:2007-03-12

    IPC分类号: H04J3/06

    摘要: A device is disclosed for transmitting packets in a packet communication network comprising at least two stations, including in particular means for generating a first timestamp from a sampled value of a master counter, means for generating a second timestamp from a sampled value of a second counter synchronized on the at least two stations and means for transmitting jointly the two timestamps in the packet communication network. A device is further disclosed for receiving packets in a packet communication network, which uses the double timestamp generated by the transmitter device.

    摘要翻译: 公开了一种用于在包括至少两个站的分组通信网络中发送分组的设备,包括特别地用于从主计数器的采样值生成第一时间戳的装置,用于从第二计数器的采样值产生第二时间戳的装置 在至少两个站上同步,以及用于在分组通信网络中联合发送两个时间戳的装置。 还公开了一种用于在分组通信网络中接收分组的设备,其使用由发射机设备生成的双时间戳。

    TIME LABELLING ASSOCIATED WITH AN EQUIPMENT SYNCHRONISATION SYSTEM CONNECTED TO A NETWORK
    16.
    发明申请
    TIME LABELLING ASSOCIATED WITH AN EQUIPMENT SYNCHRONISATION SYSTEM CONNECTED TO A NETWORK 有权
    与连接到网络的设备同步系统相关的时间标签

    公开(公告)号:US20110038370A1

    公开(公告)日:2011-02-17

    申请号:US12736566

    申请日:2009-04-21

    IPC分类号: H04L12/56

    摘要: The present invention relates to the domain of video equipment. It concerns more specifically a transmission device able to transmit packets, said device comprising the means to extract image ticks from a synchronisation signal, the means to initialise an image counter from said image ticks, the means to initialise a CPT— PCR counter every “m” passage through zero of the image counter, CPT_PCR producing counting ramps CSE_PCR with a range M, the means to sample the counting ramps CSE_PCR every Tech period, where Tech is from a time base synchronised on all the stations of said network, and the means to transmit packets comprising a PCRe sample of the CSE_PCR counting ramp. According to the invention, it also comprises the means to insert in the packet:—an Num index identifying the CSE_PCR counting ramp from which the PCRe sample is realised, and—a time label Datejnit indicating a CSE_PCR counting ramp timestamp passage through a reference value PCR_REF comprised between 0 and M-1.

    摘要翻译: 本发明涉及视频设备的领域。 它更具体地涉及能够发送分组的传输设备,所述设备包括从同步信号中提取图像滴答的装置,从所述图像刻度初始化图像计数器的装置,每m个初始化CPT-PCR计数器的装置 “通过图像计数器的零点,CPT_PCR产生具有范围M的计数斜坡CSE_PCR,每个技术周期采样计数斜坡CSE_PCR的装置,其中Tech来自在所述网络的所有站上同步的时基,以及装置 以发送包括CSE_PCR计数斜坡的PCRe样本的分组。 根据本发明,它还包括在分组中插入的装置: - 识别实现PCRe样本的CSE_PCR计数斜坡的Num索引,以及指示CSE_PCR计数斜坡时间戳通过参考值的时间标签Datejnit PCR_REF在0和M-1之间。

    PHASE CONTROL OF A SYNCHRONIZATION SIGNAL IN A PACKET SWITCHING NETWORK
    17.
    发明申请
    PHASE CONTROL OF A SYNCHRONIZATION SIGNAL IN A PACKET SWITCHING NETWORK 有权
    分组交换网络中的同步信号的相位控制

    公开(公告)号:US20100118870A1

    公开(公告)日:2010-05-13

    申请号:US12451995

    申请日:2008-06-06

    IPC分类号: H04L12/56 H04J3/06

    摘要: The present invention pertains to a device able to send packets in a packet communication network comprising at least two stations, the said device comprising means for: -extracting image pips on the basis of a synchronization signal; -initializing a first counter on the basis of the said image pips; -initializing a second counter every “m” zero-crossings of the first counter; -sampling the second counter every period Tsmp, where Tsmp emanates from a time base synchronized on all the stations of the said network; and -sending packets containing the samples in the network, characterized in that it comprises, furthermore, means for: receiving at least one phase deviation value Δφ to be applied; -sending the phase deviation value Δφ in the network. The present invention also pertains to a reception device able to receive packets in a packet communication network comprising at least two stations.

    摘要翻译: 本发明涉及一种能够在包括至少两个站的分组通信网络中发送分组的设备,所述设备包括用于:基于同步信号提取图像点的装置; - 基于所述图像点初始化第一计数器; - 在第一计数器的每“m”个零交叉点初始化第二计数器; 每个周期Tsmp采样第二计数器,其中Tsmp从在所述网络的所有站同步的时基发出; 以及包含所述网络中的样本的发送分组,其特征在于,其还包括用于:接收至少一个相位偏差值&Dgr;&phgr; 应用; 发送相位偏差值&Dgr;&phgr; 在网络中。 本发明还涉及能够在包括至少两个站的分组通信网络中接收分组的接收设备。

    Reduction in the acquisition duration of a phase-locked loop able to reconstitute a synchronisation signal transmitted over an IP network
    19.
    发明授权
    Reduction in the acquisition duration of a phase-locked loop able to reconstitute a synchronisation signal transmitted over an IP network 有权
    减少能够重建通过IP网络发送的同步信号的锁相环的采集持续时间

    公开(公告)号:US08223806B2

    公开(公告)日:2012-07-17

    申请号:US12733521

    申请日:2008-09-05

    IPC分类号: H04J3/06

    CPC分类号: H03L7/10

    摘要: The present invention relates to the domain of video equipment. More specifically, it concerns a reception device that comprises the means for: receiving packets containing samples, that come from data sampled every Tech period, where Tech is from a time base synchronized on all the stations of said network, regenerating a counting ramp having a count increment and a range value PCR_Modulus, using a phase-locked loop PLL1 that receives the samples and that delivers local samples every Tech period and a reconstituted clock, initializing, at every zero-crossing of the counting ramp, an image counter that is determined by the reconstituted clock. According to the invention, it comprises, further, means for determining the values of count increments.

    摘要翻译: 本发明涉及视频设备领域。 更具体地说,它涉及一种接收装置,其包括以下装置:接收包含样本的分组,来自每个技术周期采样的数据,其中,Tech来自在所述网络的所有站上同步的时基,重新生成具有 计数增量和范围值PCR_Modulus,使用接收采样的锁相环路PLL1,并且在每个技术周期传递本地采样,并且在计数斜坡的每个过零点处重新构建时钟,初始化,确定的图像计数器 由重建时钟。 根据本发明,其还包括用于确定计数增量的值的装置。

    Secure mechanism for transmitting counter value in the context of transmission of a synchronizing signal in a packet network
    20.
    发明授权
    Secure mechanism for transmitting counter value in the context of transmission of a synchronizing signal in a packet network 有权
    用于在分组网络中发送同步信号的上下文中发送计数器值的安全机制

    公开(公告)号:US08218577B2

    公开(公告)日:2012-07-10

    申请号:US12225016

    申请日:2007-03-13

    IPC分类号: H04J3/06

    摘要: An apparatus for transmitting and receiving packets in a packet switching network that includes at least two stations. The apparatus includes a phase-locked loop, as well as means for receiving packets containing samples of the network, the samples being derived from data sampled every Tech period, where Tech is derived from a time base synchronized on all the stations of the network and the samples being associated with incremental values predicting at least one sample, calculating, in case of interruption of packet reception, a prediction of a sample that should have been received, by adding an increment value to a received sample value.

    摘要翻译: 一种用于在包括至少两个站的分组交换网络中发送和接收分组的装置。 该装置包括锁相环,以及用于接收包含网络样本的分组的装置,样本是从每个技术周期采样的数据派生的,其中,Tech来自于在网络的所有站上同步的时基, 所述样本与预测至少一个样本的增量值相关联,在分组接收的中断的情况下,通过将接收到的样本值加上增量值来计算应该已经接收到的样本的预测。