Compact router with redundancy
    4.
    发明授权

    公开(公告)号:US11063885B2

    公开(公告)日:2021-07-13

    申请号:US15917672

    申请日:2018-03-11

    申请人: NEVION AS

    IPC分类号: H04L12/939 H04L12/703

    摘要: A compact router with redundancy includes embodiments having main and backup crosspoint switching devices wherein one of the switching devices is removable from a main circuit board via a quick disconnect means such as an electrical connector.

    Deterministic re-multiplexing for DVB SFN networks

    公开(公告)号:US11012171B2

    公开(公告)日:2021-05-18

    申请号:US16310706

    申请日:2016-06-17

    申请人: Nevion AS

    摘要: A method for adding Time Marker Packets, TMPs, comprising Metadata to an MPEG-2 transport stream transmitted via a broadcast network for providing a deterministic transport stream, comprising providing feeds of data from at least one source, where the feeds comprise payload packets being referenced by a common 1 PPS reference, and where the feeds are input to at least one multiplexer, MUX; providing Time Marker Packets, TMPs, as input to each multiplexer, where each TMP comprises a plurality of time stamps per second measured relative to said 1 PPS reference, and each TMP has a value representing an Absolute Program Clock Reference, APCR, at the time of transmission, where the APCR is based on the Epoch time, and where the TMP packet further comprises PCR, OPCR locked to said 1 PPS and UTC leap seconds. The invention is further defined by a device for executing said method, as well as a method for coding a deterministic transport stream in a Single Frequency Network, SFN, and a device for executing this method.

    DETERMINISTIC RE-MULTIPLEXING FOR DVB SFN NETWORKS

    公开(公告)号:US20190327008A1

    公开(公告)日:2019-10-24

    申请号:US16310706

    申请日:2016-06-17

    申请人: NEVION AS

    摘要: A method for adding Time Marker Packets, TMPs, comprising Metadata to an MPEG-2 transport stream transmitted via a broadcast network for providing a deterministic transport stream, comprising providing feeds of data from at least one source, where the feeds comprise payload packets being referenced by a common 1 PPS reference, and where the feeds are input to at least one multiplexer, MUX; providing Time Marker Packets, TMPs, as input to each multiplexer, where each TMP comprises a plurality of time stamps per second measured relative to said 1 PPS reference, and each TMP has a value representing an Absolute Program Clock Reference, APCR, at the time of transmission, where the APCR is based on the Epoch time, and where the TMP packet further comprises PCR, OPCR locked to said 1 PPS and UTC leap seconds. The invention is further defined by a device for executing said method, as well as a method for coding a deterministic transport stream in a Single Frequency Network, SFN, and a device for executing this method.