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Patent Searching and Data


Title:
CLOCK CALIBRATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/248277
Kind Code:
A1
Abstract:
The present application discloses a clock calibration method and device. The method comprises: receiving a standard pulse-per-second signal; obtaining a first local pulse-per-second signal; obtaining a first phase difference between the first local pulse-per-second signal and the standard pulse-per-second signal; and obtaining a threshold of a filter phase difference according to the first phase difference, and using the threshold of the filter phase difference to filter out an interference signal from the standard pulse-per-second signal. The method of the present application enables automatic adjustment of the threshold of the filter phase difference for filtering out interference signals, thereby reducing the impact of interference signals, and improving the stability of the local clock.

Inventors:
ZHANG JING (CN)
YANG XIAOGANG (CN)
ZHU ANHUA (CN)
Application Number:
PCT/CN2019/091398
Publication Date:
December 17, 2020
Filing Date:
June 14, 2019
Export Citation:
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Assignee:
HYTERA COMM CORP LTD (CN)
International Classes:
H04B7/185
Foreign References:
CN105790714A2016-07-20
CN105790714A2016-07-20
CN101231337A2008-07-30
CN101231337A2008-07-30
CN105588570A2016-05-18
CN101021555A2007-08-22
CN1909410A2007-02-07
US20090237132A12009-09-24
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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