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:
Jun. 25, 1996
Filed:
Jan. 13, 1995
Myung S Kim, Seoul, KR;
Hee B Park, Kyungki-do, KR;
LG Electronics Co., Ltd., Seoul, KR;
Abstract
A channel equalizer for a high definition television that enhances the convergent speed of the channel equalizer by renewing first a filter coefficient of a near ghost image and then renewing a filter coefficient of a far ghost image, after distinguishing the filter coefficient corresponding to the near ghost image from the filter coefficient corresponding to the far ghost image. The equalizer comprises a finite impulse response filter for performing channel equalization on an input signal input from outside of the channel equalizer, the finite impulse response filter uses a previous filter coefficient corresponding to a near ghost image and a previous filter coefficient corresponding to a far ghost image to determine an output signal, and a filter coefficient renewal part for sequentially computing a present filter coefficient corresponding to a near ghost and a present filter coefficient corresponding to a far ghost using the output signal from the finite impulse response filter and a training sequence signal input from outside of the channel equalizer and for outputting the previous filter coefficient corresponding to the near ghost image and the previous filter coefficient corresponding to the far ghost image.