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Method for setting decision feedback equalizer and related decision feedback equalizer

A technology of feedback equalizer and decision maker, which is applied in the field of communication and can solve problems such as errors

Pending Publication Date: 2022-05-20
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of a stable communication environment, the extra symbols introduced by the nonlinear decision maker may cause larger errors to be fed back to the feedback equalizer

Method used

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  • Method for setting decision feedback equalizer and related decision feedback equalizer
  • Method for setting decision feedback equalizer and related decision feedback equalizer
  • Method for setting decision feedback equalizer and related decision feedback equalizer

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Embodiment Construction

[0032] In the following text, numerous specific details are described to provide the reader with a thorough understanding of the embodiments of the present invention. However, one skilled in the art will understand how to practice the invention without one or more of the specific details, or with other methods or elements or materials, or the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring core concepts of the invention.

[0033] Reference in the specification to "an embodiment" means that a specific feature, structure or characteristic described in the embodiment may be included in at least one embodiment of the present invention. Therefore, appearances of "in one embodiment" in various places in this specification do not necessarily mean the same embodiment. Furthermore, the particular features, structures, or characteristics described above may be combined in any suitable form in one or more ...

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Abstract

The invention relates to a decision feedback equalizer and a method for setting a decision feedback equalizer. The decision feedback equalizer comprises a feed-forward equalizer, a feedback equalizer, a decision maker and a decision regulator. The feed-forward equalizer is used for generating a feed-forward output signal according to an input signal. The feedback equalizer is coupled to the feed-forward equalizer and is used for generating a feedback output signal according to a decision output signal. The decision-making device is coupled to the feed-forward equalizer and the feedback equalizer, is controlled by a decision-making adjustment parameter, and is used for making a decision-making judgment according to the sum of the feed-forward output signal and the feedback output signal so as to generate the decision-making output signal. The decision regulator is coupled to the decision maker and is configured to adjust the decision adjustment parameter according to a system sleep state.

Description

technical field [0001] The invention relates to the communication field, in particular to a decision feedback equalizer for adjusting a decision strategy according to a system sleep state or communication quality and a related equalizer setting method. Background technique [0002] When a signal is transmitted through a channel, due to the non-ideality of the channel, inter-symbol interference (Inter Symbol Interference, ISI) is often caused, which makes the receiving end unable to correctly identify the signal. Therefore, the receiving end usually adopts a circuit called a decision feedback equalizer (Decision Feedback Equalizer, decision feedback equalizer) to eliminate the intersymbol interference generated after the signal is transmitted through the channel. [0003] figure 1 An architecture of a decision-feedback equalizer is shown, wherein the decision-feedback equalizer includes a decision maker (Slicer), a feed-forward equalizer (Feed-forward Equalizer) and a feedba...

Claims

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Application Information

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IPC IPC(8): H03G5/16
CPCH03G5/165
Inventor 吕欣祐黄亮维
Owner REALTEK SEMICON CORP