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AssigneeMarvell International Ltd.
InventorsShaohua Yang, Hongwei Song, Zining Wu
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Methods, circuits, systems, and networks for detecting an amplitude drop in an incoming signal. The methods generally comprise sampling the incoming signal at regular intervals to produce a plurality of sample values, producing a plurality of drop flags in response to the plurality of sample values, and detecting the amplitude drop in response to at least two of the drop flags. The circuits generally comprise a sampling circuit configured to produce a sample signal in response to the incoming signal, a threshold circuit configured to receive the sample signal and to produce a drop flag signal in response to the sample signal, and a drop detection circuit configured to produce an amplitude drop signal in response to at least two values of the drop flag signal. The systems and networks generally comprise the present circuits and/or any circuit embodying the inventive concepts described herein. The present invention advantageously provides for detection of amplitude drops in an incoming signal, operating in the digital (rather than analog) domain. Embodiments of the present invention also reduce the incidence of “false positives” due to transient low amplitudes. Correct detection of amplitude drops can improve the accuracy of signal decoders.
A method of detecting an amplitude drop in an incoming analog signal, said method comprising:
A method of detecting an amplitude drop in an incoming signal, said method comprising:
A circuit for detecting an amplitude drop in an incoming analog signal, said circuit comprising:
A circuit for detecting an amplitude drop in an incoming signal, said circuit comprising:
Dependencies are inferred from the claim text.