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. 05, 1998
Filed:
Apr. 26, 1996
Il-Taek Lim, Seoul, KR;
LG Semicon Co., Ltd., Choongcheongbuk-Do, KR;
Abstract
An improved decision-feedback equalizer for a digital communication system, which is capable of preventing performance degradation which occurs due to a pipelining delay, includes a feed forward filter, a subtractor, a slicer, first and second feedback filters, and an adder. The feed forward filter filters out a precursor ISI signal from a digital signal. The subtractor subtracts a summation ISI signal from the digital signal output by the feed forward filter, and the slicer slices the output of the subtractor into symbols having a predetermined size. The first feedback filter has a predetermined number of pipelining delays, and filters the output from the slicer to generate a first post-cursor ISI signal. The second feedback filter also filters the output of the slicer to generate a second post-cursor ISI signal within the predetermined pipelining delay number of the first feedback filter without a pipelining delay. The adder adds the first and second post-cursor ISI signals to generate the summation ISI signal.