Circuit and method for expanding lock range of injection-locked oscillators
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United States of America Patent
Stats
-
Apr 23, 2024
Grant Date -
Apr 20, 2023
app pub date -
Dec 6, 2022
filing date -
Dec 6, 2022
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
First Claim
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International Classification(s)
- 2022 Application Filing Year
- H03L Class
- 440 Applications Filed
- 300 Patents Issued To-Date
- 68.19 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H03L Class
- 0 % this patent is cited more than
- 1 Age
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