公开(公告)号：US12278642B2

公开(公告)日：2025-04-15

申请号：US17992852

申请日：2022-11-22

Applicant: NXP USA, Inc.

Inventor： Ya-Wei Huang

IPC: H03L7/195 ,  H03L7/23 ,  H03L7/24

Abstract: A time-synchronization apparatus and/or method involves identifying a frequency offset by implementing a frequency-offset-acquisition process which includes counting cycles of a local clock signal within a period of a reference pulse train. A phase offset of the local clock signal is determined, a residual frequency error is generated based on the phase offset, and at least one timer-adjustment signal that is based on the frequency offset and the residual frequency error is provided.

公开(公告)号：US20240171185A1

公开(公告)日：2024-05-23

申请号：US17992852

申请日：2022-11-22

Applicant: NXP USA, Inc.

Inventor： Ya-Wei Huang

IPC: H03L7/195 ,  H03L7/23 ,  H03L7/24

CPC classification number: H03L7/195 ,  H03L7/23 ,  H03L7/24

Abstract: A time-synchronization apparatus and/or method involves identifying a frequency offset by implementing a frequency-offset-acquisition process which includes counting cycles of a local clock signal within a period of a reference pulse train. A phase offset of the local clock signal is determined, a residual frequency error is generated based on the phase offset, and at least one timer-adjustment signal that is based on the frequency offset and the residual frequency error is provided.