Invention Grant
- Patent Title: Wireless time and frequency lock loop system
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Application No.: US15820427Application Date: 2017-11-21
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Publication No.: US10856242B2Publication Date: 2020-12-01
- Inventor: Joshua C. Park , Glen Wolverton
- Applicant: PhasorLab, Inc.
- Applicant Address: US MA Billerica
- Assignee: PhasorLab, Inc.
- Current Assignee: PhasorLab, Inc.
- Current Assignee Address: US MA Billerica
- Agent Michael Saji
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04L12/26 ; H04L5/00 ; H04W84/20

Abstract:
Systems and methods for wireless synchronization are disclosed. In one embodiment, a method is disclosed for synchronizing a slave device to a master device, comprising: receiving, at a local device, a master device reference signal in the form of a modulated radio frequency (RF) signal from a master device; receiving, at the local device, a master device time stamp from the master device; computing a time offset of the master device reference signal relative to a local reference oscillator signal of a local oscillator, using the master device time stamp; computing a frequency offset of the master device reference signal relative to the local reference oscillator signal; generating a local reference oscillator control signal based on the computed time offset and the computer frequency offset; and adjusting the local reference oscillator to maintain a frequency and time lock with the master device reference signal at the local device.
Public/Granted literature
- US20180146443A1 Wireless Time and Frequency Lock Loop System Public/Granted day:2018-05-24
Information query