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. 03, 2008
Filed:
May. 16, 2003
Yong-seong Cho, Daejeon, KR;
Joon-young Jung, Daejeon, KR;
O-hyung Kwon, Daejeon, KR;
Chieteuk Ahn, Daejeon, KR;
Yong-Seong Cho, Daejeon, KR;
Joon-Young Jung, Daejeon, KR;
O-Hyung Kwon, Daejeon, KR;
Chieteuk Ahn, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A restricted reception device enabling a subscriber receiver to selectively receive broadcasting data transferred via a digital cable broadcasting network, includes: a demultiplexer for receiving broadcasting data and an ECM including a CW from the subscriber receiver, and demultiplexing them, the broadcasting data and the ECM being transferred through an in-band channel; an out-of-band channel signal processor for receiving an EMM from the subscriber receiver, and processing the EMM, the EMM being transferred through an out-of-band channel; a restricted reception processor for descrambling the scrambled broadcasting data using the ECM and the EMM received from the out-of-band channel signal processor; and a remultiplexer for multiplexing the descrambled broadcasting data received from the restricted reception processor, and sending the multiplexed broadcasting data to the subscriber receiver.