PAM-4 receiver using pattern-based clock and data recovery circuitry
US-12184290-B2 · Dec 31, 2024 · US
Noise ingress cancelation
US8971307B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971307-B2 |
| Application number | US-201213721853-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2012 |
| Priority date | Dec 20, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A demodulator can include an ingress exciser configured to remove ingress noise from a burst mode digital input signal that is above a predetermined threshold and resides within a narrowband. An adaptive equalizer can be configured to adaptively equalize an estimate of the signal provided from the ingress exciser and to provide an adaptively equalized signal. An ingress predictor can be configured to subtract an estimate of remaining predicted ingress noise from the adaptively equalized signal to provide a resultant signal that is substantially free of the ingress noise.
First claim
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What is claimed is: 1. An apparatus comprising: an ingress exciser configured to remove ingress noise from a burst mode digital input signal that is above a predetermined threshold and resides within a narrowband and to generate an excised signal that is substantially free of ingress noise above the predetermined threshold within the narrowband; an adaptive equalizer configured to adaptively equalize an estimate of the excised signal provided from the ingress exciser and to prov…
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- What does patent US8971307B2 cover?
- A demodulator can include an ingress exciser configured to remove ingress noise from a burst mode digital input signal that is above a predetermined threshold and resides within a narrowband. An adaptive equalizer can be configured to adaptively equalize an estimate of the signal provided from the ingress exciser and to provide an adaptively equalized signal. An ingress predictor can be configu…
- Who is the assignee on this patent?
- Cisco Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L27/01. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).