US Patent Application 18133976. DECISION FEEDBACK EQUALIZATION EMBEDDED IN SLICER simplified abstract

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DECISION FEEDBACK EQUALIZATION EMBEDDED IN SLICER

Organization Name

Taiwan Semiconductor Manufacturing Co., Ltd.


Inventor(s)

Shu-Chun Yang of Xihu Township (TW)


Wen-Hung Huang of Hsinchu City (TW)


DECISION FEEDBACK EQUALIZATION EMBEDDED IN SLICER - A simplified explanation of the abstract

  • This abstract for appeared for US patent application number 18133976 Titled 'DECISION FEEDBACK EQUALIZATION EMBEDDED IN SLICER'

Simplified Explanation

The abstract describes an apparatus and method for reducing inter-symbol interference (ISI) in communication channels. It introduces a decision feedback equalizer that includes delay latches and a slicer circuit. The slicer circuit receives an input signal from the communication channel and delayed feedback signals from the delay latches. It determines the logical state of the input signal using a dynamic threshold voltage calibration circuit. This circuit regulates the current flow between the output nodes of the slicer circuit and ground based on the received delayed feedback signal and impulse response coefficients of the communication channel.


Original Abstract Submitted

An apparatus and method for providing a decision feedback equalizer are disclosed herein. In some embodiments, a method and apparatus for reduction of inter-symbol interference (ISI) caused by communication channel impairments is disclosed. In some embodiments, a decision feedback equalizer includes a plurality of delay latches connected in series, a slicer circuit configured to receive an input signal from a communication channel and delayed feedback signals from the plurality of delay latches and determine a logical state of the received input signal, wherein the slicer circuit further comprises a dynamic threshold voltage calibration circuit configured to regulate a current flow between output nodes of the slicer circuit and ground based on the received delayed feedback signal and impulse response coefficients of the communication channel.

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