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:
Jan. 10, 2012
Filed:
Dec. 31, 2004
Sung-ik Park, Daejon, KR;
Yong-tae Lee, Daejon, KR;
Ho-min Eum, Daejon, KR;
Heung-mook Kim, Daejon, KR;
Jae-hyun Seo, Daejon, KR;
Seung-won Kim, Daejon, KR;
Soo-in Lee, Daejon, KR;
Sung-Ik Park, Daejon, KR;
Yong-Tae Lee, Daejon, KR;
Ho-Min Eum, Daejon, KR;
Heung-Mook Kim, Daejon, KR;
Jae-Hyun Seo, Daejon, KR;
Seung-Won Kim, Daejon, KR;
Soo-In Lee, Daejon, KR;
Abstract
Provided is a modulating apparatus and method of an on-channel repeater. An object of the present invention is to provide a modulating apparatus of an on-channel repeater for reducing time delay by configuring and up-sampling a baseband signal, filtering the up-sampled baseband signal with an Equi-Ripple (ER) filter or in a window method, and converting the filtered baseband signal into an RF signal. The modulating apparatus includes: a baseband signal configuring unit for configuring a baseband. signal by combining an input field and a segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; a filtering unit for filtering the baseband signal with the pilot signal; and an RF up-converting unit for up-converting the filtered signal into an RF signal. The present invention is used to form an on-channel repeating network in a transmitting system including a digital TV broadcasting system.