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Patent

Method and system for merging clocks from multiple precision time protocol (ptp) clock domains

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TLDR
In this paper, a method for synchronizing a slave clock in a Time Sensitive Network (TSN) that includes multiple Precision Time Protocol (PTP) clock domains is disclosed. But the method is limited to the case of a single PTP clock.
Abstract
Embodiments of a method and device are disclosed. In an embodiment, a method for synchronizing a slave clock in a Time Sensitive Network (TSN) that includes multiple Precision Time Protocol (PTP) clock domains is disclosed. The method involves determining parameters related to multiple PTP clock domains, assigning domain-specific weights to the multiple PTP clock domains based on the determined parameters, generating a control signal for a clock parameter using the domain-specific weights assigned to the multiple PTP clock domains, and adjusting the clock parameter of a slave clock in response to the control signal.

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References
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Patent

Fault tolerant clock network

TL;DR: In this paper, a fault tolerant and redundant grand master clock scheme was proposed to reduce or eliminate precision time transition caused by a network link or device failure, where the primary and backup clocks may be concurrently operated.
Proceedings ArticleDOI

A master redundancy technique in IEEE 1588 synchronization with a link congestion estimation

TL;DR: A novel best master clock (BMC) algorithm to take account of link congestion between master and slave nodes to improve the availability of synchronization in IEEE 1588 is proposed.