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  2. Precision Time Protocol - Wikipedia

    en.wikipedia.org/wiki/Precision_Time_Protocol

    The Precision Time Protocol (PTP) is a protocol for clock synchronization throughout a computer network with relatively high precision and therefore potentially high accuracy. . In a local area network (LAN), accuracy can be sub-microsecond – making it suitable for measurement and control systems.

  3. List of PTP implementations - Wikipedia

    en.wikipedia.org/wiki/List_of_PTP_implementations

    Precision Time Protocol (PTP) is a widely adopted protocol for delivery of precise time over a computer network. A complete PTP system includes PTP functionality in network equipment and hosts . PTP may be implemented in hardware , software or a combination of both.

  4. Clock synchronization - Wikipedia

    en.wikipedia.org/wiki/Clock_synchronization

    The time server maintains its clock by using a radio clock or other accurate time source, then all other computers in the system stay synchronized with it. A time client will maintain its clock by making a procedure call to the time server. Variations of this algorithm make more precise time calculations by factoring in network radio ...

  5. Time and frequency transfer - Wikipedia

    en.wikipedia.org/wiki/Time_and_frequency_transfer

    The time from an atomic clock onboard each satellite is encoded into the radio signal; the receiver determines how much later it received the signal than it was sent. To do this, a local clock is corrected to the GPS atomic clock time by solving for three dimensions and time based on four or more satellite signals. [11]

  6. Precision Time Protocol Industry Profile - Wikipedia

    en.wikipedia.org/wiki/Precision_Time_Protocol...

    A clock shall accept both 1-step and 2-step corrections (improves plug-and-play) All clocks can be doubly attached using the IEC 62439-3 protocol (PRP "Parallel Redundancy Protocol" or HSR "High-availability Seamless Redundancy") Several master clocks can be active at the same time; the slave selects the best master.

  7. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    This scale allows for time comparisons between different clocks in the laboratory. These atomic time scales are generally referred to as TA(k) for laboratory k. [61] Coordinated Universal Time (UTC) is the result of comparing clocks in national laboratories around the world to International Atomic Time (TAI), then adding leap seconds as ...

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