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US 2025/0132967 A1Published application
Systems and Methods for Efficient Convergence for Time Servo
OwnerKishan Shenoi, Hans Brandberg +3inventors
InventorsKishan Shenoi, Hans Brandberg, Mary McShea, Christian Blixt, Leonid Zhigunov
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Abstract
Systems and methods for packet-based network clock synchronization are provided. An integrated circuit device may include a local clock and a packet-based synchronization servo to apply a control loop to synchronize the local clock with a remote clock. The control loop may include a frequency correction to accelerate convergence.
Claims20
An integrated circuit device comprising:
- a local clock;
- and
- a packet-based synchronization servo configured to apply a control loop to synchronize the local clock with a remote clock, wherein the control loop comprises a frequency correction to accelerate convergence.
A method comprising:
- performing packet exchange of time-synchronization packets over a window size for a set of iterations;
- using the time-synchronization packets in a control loop of a time-synchronization servo to control a local clock;
- when synchronization convergence is not achieved over the window size for the set of iterations, increasing the window size and repeating the method until synchronization convergence is achieved or until a maximum window size or maximum set of iterations is reached.
A method comprising:
- receiving a plurality of time-synchronization packets over a network in accordance with a time-synchronization protocol;
- determining a variance of a plurality of packet-selection methods using the plurality of time-synchronization packets;
- and
- using a packet-selection method with a lowest variance from among the plurality of packet-selection methods to perform network time-synchronization.
1 more element
Dependencies are inferred from the claim text.