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:
Mar. 23, 1999
Filed:
Dec. 20, 1996
Myeong-hwan Lee, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
An equalizing method and device for equalizing a received signal by renewing a filtering coefficient of a filter in an off-line system using a pre-stored reference signal. It is first determined whether or not a signal input to a high definition TV (HDTV) includes a field sync or not. If so, the detected field sync is stored in a memory as a training sequence. A filtering coefficient is calculated according to a predetermined algorithm, and a symbol error rate (SER) is calculated using the pre-stored reference signal. The filtering coefficient is transmitted to the filter when the calculated SER is lower than a predetermined value. The process of calculating the filtering coefficient, determining the level of the training sequence, and transmitting the filtering coefficient is repeated until a loop variable equals a loop constant, which indicates the number of off-line operations capable of being performed in a field, while increasing the loop variable when the calculated SER obtained is greater than or equal to the predetermined value.