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. 12, 2012
Filed:
Sep. 07, 2011
Byoung Gill Kim, Seoul, KR;
IN Hwan Choi, Gyeonggi-do, KR;
Woo Chan Kim, Gyeonggi-do, KR;
Jae Hyung Kim, Seoul, KR;
Yong Hak Suh, Seoul, KR;
Hyoung Gon Lee, Seoul, KR;
Jong Moon Kim, Gyeonggi-do, KR;
Byoung Gill Kim, Seoul, KR;
In Hwan Choi, Gyeonggi-do, KR;
Woo Chan Kim, Gyeonggi-do, KR;
Jae Hyung Kim, Seoul, KR;
Yong Hak Suh, Seoul, KR;
Hyoung Gon Lee, Seoul, KR;
Jong Moon Kim, Gyeonggi-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A DTV receiver includes a tuner, a demodulator, a known sequence detector, and a frequency domain equalizer. The tuner initially receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The demodulator demodulates the broadcast signal, and the known sequence detector detects the known data sequence from the demodulated signal. The frequency domain equalizer compensates channel distortion of the demodulated broadcast signal in a frequency domain using the detected known data sequence. In addition, the DTV receiver may further include a time domain equalizer which compensates channel distortion of the time domain signal, or a noise canceller which removes a predicted noise from the time domain signal.