Circuit and method for expanding lock range of injection-locked oscillators

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United States of America Patent

PATENT NO 11967966
APP PUB NO 20230117853A1
SERIAL NO

18076359

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Abstract

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The present disclosure provides a circuit and method for expanding the lock range of injection-locked oscillators. The circuit includes N injection-locked oscillators and a lock detector, where the lock detector includes an alignment monitor, a clock selector, and N self-samplers. A pulse reference signal is inputted into the N injection-locked oscillators, and the output of each injection-locked oscillator is connected to the clock selector and the corresponding self-sampler. The self-samplers sample the outputs of the N injection-locked oscillators and output the sampling results to the alignment monitor. The alignment monitor monitors the sampling results, determines the locking conditions of the injection-locked oscillators, and turns off the unlocked oscillators. The clock selector selects a locked oscillator and transmits the output of the locked oscillator as a system lock.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITYHANGZHOU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Ziyi Zhejiang, CN 2 0
Zhao, Bo Zhejiang, CN 183 896

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