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:
Dec. 18, 2012
Filed:
Jan. 14, 2010
Geun Yong Kim, Gyeonggi-do, KR;
Hark Yoo, Gwangju, KR;
Dongsoo Lee, Gwangju, KR;
Sung Chang Kim, Gwangju, KR;
Mun Seob Lee, Daejeon, KR;
Youngsuk Lee, Gwangju, KR;
Geun Yong Kim, Gyeonggi-do, KR;
Hark Yoo, Gwangju, KR;
Dongsoo Lee, Gwangju, KR;
Sung Chang Kim, Gwangju, KR;
Mun Seob Lee, Daejeon, KR;
Youngsuk Lee, Gwangju, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is an apparatus for filtering a multicast port identifier, the apparatus including: a processor to receive an Internet Group Management Protocol (IGMP) message from a switching unit, to verify a traffic reception request received from a subscriber terminal based on the IGMP message, and to store a value in a filtering register based on the traffic reception request; and an Optical Network Unit (ONU) Media Access Control (MAC) manager to filter a packet to be forwarded to the subscriber terminal, using a port identifier for traffic forwarding and reception with the subscriber terminal, and using the value of the filtering register indicating an existence of traffic to be forwarded to the subscriber terminal.