Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2011-07-26
2011-07-26
Pascal, Leslie (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S069000
Reexamination Certificate
active
07986879
ABSTRACT:
Disclosed is a system and a method for polling in an Ethernet Passive Optical Network (EPON). The system includes: multiple Optical Network Units (ONUs) for sharing optical channels of the EPON with one another and transmitting traffic; and an Optical Line Terminal (OLT) for discriminating a plurality of ONUs gaining access to the EPON among the multiple ONUs and then collecting routing information on the plurality of ONUs gaining access to the EPON, and for classifying the plurality of ONUs gaining access to the EPON into two or more ONU groups according to the collected routing information and then carrying out forming a polling cycle and allocating bandwidth on each ONU group. Therefore, a transmission idle period in a traffic channel is not only minimized, but an availability ratio of traffic channels can also be maximized.
REFERENCES:
patent: 2003/0152389 (2003-08-01), Sala et al.
patent: 2007/0133596 (2007-06-01), Kim
patent: 10-2006-0080783 (2006-07-01), None
patent: 10-2007-0061235 (2007-06-01), None
patent: WO2006106499 (2006-10-01), None
Office Action for Korean counterpart application No: KR10-2008-0007927, dated May 6, 2009, 7 pages.
Office Action for Korean counterpart application No: KR10-2008-0007927, dated Oct. 13, 2009, 6 pages.
Choo Hyun Seung
Chung Min Young
Lee Sang Ho
Lee Tae-Jin
Blakely Sokoloff Taylor & Zafman LLP.
Pascal Leslie
Sungkyunkwan University Foundation for Corporate Collaboration
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