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9 条记录 (耗时 0.013 秒)

    IMPROVEMENT TO THE PRECISION/SPEED COMPROMISE OF A SYNCHRONIZATION SIGNAL RECEPTION DEVICE
    1.
    发明公开
    IMPROVEMENT TO THE PRECISION/SPEED COMPROMISE OF A SYNCHRONIZATION SIGNAL RECEPTION DEVICE 有权
    改善精度的/ GESCHWINDINGKEITSBALANCE同步信号接收装置

    公开(公告)号：EP2153664A1

    公开(公告)日：2010-02-17

    申请号：EP08760667.9

    申请日：2008-06-06

    申请人： Thomson Licensing

    发明人： TAPIE, THIERRY ,  DEFRANCE, SERGE ,  AUTIER, INGRID

    IPC分类号： H04N7/62

    CPC分类号： H04N21/4305 ,  H03L7/093 ,  H03L7/10 ,  H03L2207/06 ,  H03L2207/50 ,  H04N21/4263

    摘要： The present invention relates to a reception device able to receive packets in a communication network comprising at least two stations. The device comprises means for: - receiving packets containing samples PCRr of the network which originate from data sampled every period Tsmp, where Tsmp emanates from a time base synchronized on all the stations of the said network; - regenerating a counting ramp CSR_PCR1 with the aid of a loop PLL1 receiving the samples PCRr and furthermore delivering local samples PCR_IOC1 every period Tsmp and a clock CLK_OUt1; the phase-locked loop PLL1 comprises: - a samples comparator CMP1 comparing the samples PCRr and the local samples and delivering an error signal ERR; - a corrector COR1 receiving the signal ERR and delivering a corrected error signal ERC, the corrector COR1 having a static gain equal to 1; - a digital oscillator VCO1 receiving the corrected error signal ERC and delivering the clock CLK_OUt1, which has a frequency dependent on the signal ERC and is proportional to a gain G. According to the invention, the phase-locked loop PLL1 comprises, furthermore, a gain adjustment device DAG1 which determines a gain value G as a function of the error signal ERR.

    Undersampled clock signal synchronization aid device and device for reconstructing undersampled clock signals, for a packet-switched network
    2.
    发明公开
    Undersampled clock signal synchronization aid device and device for reconstructing undersampled clock signals, for a packet-switched network 有权
    用于同步的时钟信号中的辅助设备二次采样，及对被分组欠时钟信号的再生装置交换网络

    公开(公告)号：EP1956738A1

    公开(公告)日：2008-08-13

    申请号：EP08101270.0

    申请日：2008-02-04

    申请人： Thomson Licensing, Inc.

    发明人： TAPIE, THIERRY ,  DEFRANCE, SERGE ,  HUGUIES, BERTRAND

    IPC分类号： H04J3/06 ,  H04L7/04

    CPC分类号： H04J3/0667 ,  H04J3/0697 ,  H04L7/04

    摘要： A synchronization aid device (D2) is part of receiving communication equipment (EQ2) of an IP network, having a primary clock signal consisting of primary clock pulses spaced apart by a first period. This device (D2) comprises i) a counter (C2) 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 (MD2) required to generate a secondary clock pulse each time the value of the counter (C2) 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 (MC2) required, each time the receiving equipment (EQ2) receives a packet containing at least one first bit having a first value, to initialize the counter (C2) with a chosen value.

    摘要翻译： 一个同步辅助设备（D2）是接收到IP网络的通信设备（EQ2），具有主时钟信号由被第一周期分隔开的主时钟脉冲的一部分。 此设备（D2）包括i）计数器（C2）需要由一个单元上的每个主时钟脉冲来递增其值和复位它的值在每次到达值M时为零，ⅱ）检测装置（MD2）需要产生 每次计数器的值（C2）第二个时钟脉冲是零，辅助时钟脉冲形成具有第二周期等于M倍的第一周期的第二个时钟信号，以及iii）控制装置（MC2）需要，每次 所述接收设备（EQ2）接收到包含具有第一值的至少一个第一比特，与所选择的值来初始化计数器（C2）的分组。

    METHOD, APPARATUS AND STREAM FOR ENCODING/DECODING VOLUMETRIC VIDEO
    5.
    发明公开
    METHOD, APPARATUS AND STREAM FOR ENCODING/DECODING VOLUMETRIC VIDEO 审中-公开

    公开(公告)号：EP3489900A1

    公开(公告)日：2019-05-29

    申请号：EP17306629.1

    申请日：2017-11-23

    申请人： THOMSON LICENSING

    发明人： THUDOR, FRANCK ,  CHUPEAU, BERTRAND ,  DORE, RENAUD ,  TAPIE, THIERRY ,  FLEUREAU, JULIEN

    IPC分类号： G06T9/00 ,  H04N19/597

    摘要： A method and device for encoding data representative of a 3D representation of a scene into a bitstream, the 3D representation being according to a range of points of view. To reach that aim, at least a depth map associated with at least a part of the 3D representation is generated according to at least a parameter representative of at least a two-dimensional parametrization associated with the at least a part and data associated with at least a point comprised in the at least a part, the at least a two-dimensional parametrization being responsive to geometric information associated with the at least a point and to pose information associated with the range of points of view. At least a texture map associated with the at least a part is generated according to the at least a parameter and data associated with the at least a point comprised in the at least a part. A first information representative of point density of points comprised in at least a part of the at least a part of the 3D representation is obtained. The at least a depth map is encoded into a first syntax element of the bitstream, the at least a texture map into a second syntax element of the bitstream, the at least a parameter into a third syntax element of the bitstream, the first information into a fourth syntax element of the bitstream and a second information representative of a mapping between the at least a two-dimensional parametrization and corresponding at least a depth map and at least a texture map into a fifth syntax element of the bitstream.
    Corresponding method and device for decoding the bitstream are also disclosed.

    METHOD, APPARATUS AND STREAM FOR IMMERSIVE VIDEO FORMAT
    6.
    发明公开
    METHOD, APPARATUS AND STREAM FOR IMMERSIVE VIDEO FORMAT 审中-公开

    公开(公告)号：EP3249921A1

    公开(公告)日：2017-11-29

    申请号：EP16305600.5

    申请日：2016-05-24

    申请人： Thomson Licensing

    发明人： DORE, RENAUD ,  FLEUREAU, JULIEN ,  TAPIE, THIERRY ,  THUDOR, FRANCK

    IPC分类号： H04N13/02

    CPC分类号： H04N5/44504 ,  G06T7/529 ,  G06T7/557 ,  G06T7/60 ,  G06T7/70 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/20212 ,  H04N13/279

    摘要： Method and device for generating a stream from image(s) of an object, comprising: obtaining data associated with points of a point cloud representing at least a part of the object; obtaining a parametric surface according to at least a geometric characteristic associated with the at least a part of the object and pose information of an acquisition device used to acquire the at least one image; obtaining a height map and one or more texture maps associated with the parametric surface; generating the stream by combining together a first syntax element relative to the at least a parameter, a second syntax element relative to the height map, a third syntax element relative to the at least one texture map and a fourth syntax element relative to a position of the acquisition device.
    The disclosure relates further to a method and device for rendering an image of the object from the stream thus obtained.

    TRANSMISSION D'UN SIGNAL DE SYNCHRONISATION DANS UN RESEAU A COMMUTATION PAR PAQUETS
    8.
    发明公开
    TRANSMISSION D'UN SIGNAL DE SYNCHRONISATION DANS UN RESEAU A COMMUTATION PAR PAQUETS 有权
    EENEM PAKETNETZ的SENDEN EINES SYNCHRONISIERUNGSSIGNALS

    公开(公告)号：EP2022273A2

    公开(公告)日：2009-02-11

    申请号：EP07731734.5

    申请日：2007-03-13

    申请人： THOMSON Licensing

    发明人： TAPIE, THIERRY ,  DEFRANCE, SERGE ,  HUGUIES, BERTRAND

    IPC分类号： H04N7/62

    CPC分类号： H04N21/4305 ,  H04N21/242 ,  H04N21/64322 ,  H04N21/8547

    摘要： The invention concerns a device for transmitting packets in a packet communication network comprising at least two stations, characterized in that it includes means for: extracting image cues from a synchronizing signal; initializing a first counter based on said image cues; initializing a second counter every 'm' zero crossing of the first counter; sampling the second counter all the Tech periods, where Tech is derived from a time base synchronized on all the network stations; and transmitting packets containing the samples in the network. The invention also concerns a device for receiving packets in a packet communication network comprising at least two stations.

    摘要翻译： 本发明涉及一种用于在包括至少两个站的分组通信网络中传送分组的设备，其特征在于，其包括用于从同步信号中提取图像提示的装置，基于所述图像提示初始化第一计数器，每个初始化第二计数器 在第一个计数器的“m”过零点，在所有技术周期采样第二个计数器，其中，Tech是从所有网络站上同步的时基派生的，并且传送包含网络中的样本的数据包。 本发明还涉及一种用于在包括至少两个站的分组通信网络中接收分组的设备。

    Device for generating counter signals representative of clock signals and device for reconstructing clock signals, for a packet-switched network
    9.
    发明公开
    Device for generating counter signals representative of clock signals and device for reconstructing clock signals, for a packet-switched network 有权
    一种用于时钟信号为用于分组的时钟信号的恢复的显示和装置产生计数器信号设备交换网络

    公开(公告)号：EP1956737A1

    公开(公告)日：2008-08-13

    申请号：EP08101268.4

    申请日：2008-02-04

    申请人： Thomson Licensing

    发明人： TAPIE, THIERRY ,  DEFRANCE, SERGE ,  MONTALVO, LUIS

    IPC分类号： H04J3/06 ,  H03L7/093 ,  H03L7/107 ,  H04N7/62

    CPC分类号： H03L7/093 ,  H03L7/085 ,  H03L7/0994 ,  H03L7/107 ,  H03L7/181 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/4305

    摘要： A device (D2) is dedicated to the reconstruction of clock signals, for example within communication equipment (EQ2) of an IP network. This device (D2) comprises i) a phase-locked loop (BV) having a cut-off frequency dependent, on the one hand, on a configuration value making it possible to reconstruct clock signals according to a chosen clock frequency, and on the other hand, a chosen sampling frequency, and ii) control means (MC2) responsible for forcing the phase-locked loop (BV) to present a variable cut-off frequency according to a received operating mode indication.

    摘要翻译： 的设备（D2）专用于时钟信号的重建，对于IP网络的通信设备（EQ2）内实施例。 此设备（D2）包括：i）锁相环（BV），其具有一个截止频率依赖性的，在一方面，在一个配置值使得能够重构时钟信号雅丁到选定的时钟频率，并且在 otherhand，选定的采样频率，以及ii）控制装置（MC2）负责迫使锁相环（BV）以呈现可变截止频率gemäß接收到的operatingMode指示。