The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2020
Filed:
Aug. 13, 2019
Montage Lz Semiconductor (Shanghai) Co., Ltd., Shanghai, CN;
Gang Hu, Shanghai, CN;
Zhen Lu, Shanghai, CN;
Xuepeng Wang, Shanghai, CN;
Yuanfei Nie, Shanghai, CN;
MONTAGE LZ SEMICONDUCTOR (SHANGHAI) CO., Ltd., Shanghai, CN;
Abstract
The present application disclosed a decision feedback equalization processing device and method. The device comprises: a channel estimator for receiving an input signal, and determining, based on the input signal, an input signal autocorrelation matrix R, an input-output signal cross-correlation matrix Rand an input-output signal cross-correlation vector r; a tap coefficient calculator for receiving R, Rand r, and calculating a feed-forward equalizer (FFE) tap coefficient vector g and a feedback equalizer (FBE) tap coefficient vector f, wherein at least one of the FFE tap coefficient vector g and the FBE tap coefficient vector f is calculated using a conjugate gradient descent algorithm. The tap coefficient calculator comprises: a circulant matrix construction unit and a fast Fourier transformation (FFT) calculating unit. And the device further comprises a decision feedback equalizer for receiving from the tap coefficient calculator the FFE tap coefficient vector g and the FBE tap coefficient vector f, and performing equalization on the input signal and generating an equalized output signal.