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US 11,114,979 B2Granted
Frequency detector
AssigneeSilicon Integrated Systems Corp.
InventorsWen-Chi Lin, Keng-Nan Chen
Life of this patent
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AssigneeSilicon Integrated Systems Corp.
InventorsWen-Chi Lin, Keng-Nan Chen
Estimating the term…
A frequency detector is used for detecting a frequency difference of a signal to be tested from a first time point to a second time point. The frequency detector includes: an alternating current coupled capacitor configured to receive the signal to be tested; a rectifying circuit electrically connected to the alternating current coupled capacitor; an analog-to-digital converter electrically connected to the rectifying circuit; a control unit electrically connected to the analog-to-digital converter; and a counter electrically connected to the rectifying circuit and the control unit, wherein the control unit is configured to calculate the frequency difference of the signal to be tested from the first time point to the second time point according to outputs of the analog-to-digital converter and outputs of the counter.
A frequency detector, used for detecting a frequency difference of a signal to be tested from a first time point to a second time point, the frequency detector comprising:
A frequency detector, used for detecting a frequency difference of a signal to be tested from a first time point to a second time point, the frequency detector comprising:
Dependencies are inferred from the claim text.