Low-power and low-cost adaptive self-linearization system with fast convergence
US-9197262-B2 · Nov 24, 2015 · US
Decision feedback equalizer and receiver
US9225367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9225367-B2 |
| Application number | US-201514747518-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 23, 2015 |
| Priority date | Dec 28, 2012 |
| Publication date | Dec 29, 2015 |
| Grant date | Dec 29, 2015 |
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Abstract
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Embodiments of the present invention provide a decision feedback equalizer, which includes: a receive end, configured to receive a first differential signal, and input the first differential signal to the superimposer; a superimposer, configured to superimpose the first differential signal on a square-wave signal output by a adjusting unit to obtain a second differential signal; the adjusting unit, configured to perform phase and/or amplitude adjustment for a second square-wave signal; the first decision device is configured to compare a voltage amplitude of the second differential signal with a set value, and output a first square-wave signal; the second decision device is configured to compare the voltage amplitude of the second differential signal with a voltage amplitude of a signal adjusted by the adjusting unit, and input an obtained second square-wave signal to the adjusting unit. The embodiments of the present invention can reduce data edge jitter.
First claim
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What is claimed is: 1. A decision feedback equalizer, comprising: a receive end, a superimposer, an adjusting unit, a first decision device and a second decision device; wherein the receive end is configured to receive a first differential signal, synchronize a local clock with a frequency of the first differential signal to make a cycle of the local clock consistent with a cycle of the first differential signal, and input the first differential signal to the superimposer; whe…
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- H04B1/10Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9225367B2 cover?
- Embodiments of the present invention provide a decision feedback equalizer, which includes: a receive end, configured to receive a first differential signal, and input the first differential signal to the superimposer; a superimposer, configured to superimpose the first differential signal on a square-wave signal output by a adjusting unit to obtain a second differential signal; the adjusting u…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B1/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 29 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).