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:
Sep. 28, 2010
Filed:
Sep. 11, 2006
Tae-hoon Kim, Seoul, KR;
Seung-hyun Choi, Daejon, KR;
Cheon-in OH, Daejon, KR;
Pan-soo Kim, Daejon, KR;
Dae-ig Chang, Daejon, KR;
Tae-Hoon Kim, Seoul, KR;
Seung-Hyun Choi, Daejon, KR;
Cheon-In Oh, Daejon, KR;
Pan-Soo Kim, Daejon, KR;
Dae-Ig Chang, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An apparatus for independently extracting streams from a hierarchically-modulated signal and performing a soft-decision, and a method thereof are provided. The apparatus includes: a synchronizing unit for receiving a hierarchically-modulated signal configured of an I-channel signal and a Q-channel signal from an external device and performing a synchronizing process on the received signal; a divaricating unit 410 for divaricating the synchronized signal configured of the I-channel signal and the Q-channel signal from the synchronizing unit; a high priority (HP) stream extracting and soft-decision unit for extracting a HP stream from one of the divaricated signals, and performing a soft-decision; a processing unit for processing the other of the divaricated signals to allow constellation points to be distinguished; and a low priority (LP) stream extracting and soft-decision unit for extracting a LP stream from the processed signal from the processing unit and performing a soft-decision.