Real-time correction method for oven controlled crystal oscillator and electromagnetic receiver

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United States of America Patent

PATENT NO 11545933
APP PUB NO 20220385232A1
SERIAL NO

17840433

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Abstract

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The present disclosure provides a real-time correction method for an Oven Controlled Crystal (Xtal) Oscillator (OCXO) and an electromagnetic receiver. The real-time correction method for an OCXO includes: performing frequency multiplication on a reference clock signal to generate a first measurement signal and a second measurement signal; identifying a rising edge of each pulse per second on the basis of the first measurement signal to obtain a gate time T; obtaining a frequency of the second measurement signal according to the gate time T; and adjusting a frequency of the reference clock signal at least on the basis that an absolute value of a difference between two adjacent frequencies obtained of the second measurement signal is greater than a standard frequency difference.

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Patent OwnerAddress
INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES100029 BEIJING CITY CHAOYANG DISTRICT BEITUCHENG WEST ROAD NO 19 BEIJING CITY BEIJING CITY 100029

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Di, Qingyun Beijing, CN 81 67
Kang, Lili Beijing, CN 12 25
Liu, Zhiyao Beijing, CN 13 3
Pei, Renzhong Beijing, CN 10 2
Wang, Zhongxing Beijing, CN 29 18
Zhang, Tianxin Beijing, CN 14 7

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