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:
Aug. 10, 2010
Filed:
Jul. 08, 2005
Kyung Won Kang, Seoul, KR;
Woo Chan Kim, Gyeonggi-do, KR;
IN Hwan Choi, Seoul, KR;
Byoung Gill Kim, Seoul, KR;
Yong Hak Suh, Seoul, KR;
Kyung Won Kang, Seoul, KR;
Woo Chan Kim, Gyeonggi-do, KR;
In Hwan Choi, Seoul, KR;
Byoung Gill Kim, Seoul, KR;
Yong Hak Suh, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Channel Equalization of a digital TV is disclosed. In channel equalization for restoring an original signal from a digital TV reception signal having passed through a channel, the present invention includes estimating an impulse response of the channel from a received signal having passed through the channel using conjugate-gradient algorithm, finding an equalizer coefficient in a frequency domain using the estimated impulse response of the channel, outputting a signal equalized by multiplying a signal resulting from transforming the received signal into the frequency domain by the found equalizer coefficient, and predicting to remove an amplified noise of the equalized signal using the conjugate-gradient algorithm in a time domain. Accordingly, the variation of the channel impulse response according to time can be tracked in the dynamic channel having fast channel variation as well as the static channel, whereby equalizing performance can be enhanced.