Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2004-08-05
2008-05-13
Phan, Hanh (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S066000, C398S067000, C398S068000, C398S069000, C398S070000, C398S071000, C398S075000, C398S076000, C398S079000, C398S098000, C398S099000, C398S100000, C398S102000, C398S135000, C398S182000, C398S183000, C398S186000, C398S187000, C398S202000, C370S445000, C370S463000, C370S468000, C370S473000, C370S466000, C370S535000, C370S536000, C370S390000, C370S392000, C370S394000, C370S351000
Reexamination Certificate
active
07373084
ABSTRACT:
A termination device for use in a WDM-SCM PON system can effectively support a multi-channel integration function of a WDM/SCM PON system. The termination device contained in a termination end of a WDM/SCM (Wavelength Division Multiplexing/Sub-Carrier Multiplexing) PON (Passive Optical Network) to connect the PON with either a subscriber or an Ethernet service network includes: an Ethernet interface module connected to the Ethernet service network or the subscriber to perform an Ethernet interface function; a WDM/SCM physical layer module physically connected to the WDM/SCM PON to transmit/receive optical signals to/from the WDM/SCM PON; and a MAC (Media Access Control)-bridge module for performing a multiplexing/demultiplexing operation based on a MAC address upon receipt of transmission/reception frames, and reconstructing preambles of the frames while being classified according to channels so that individual Ethernet frames are matching-processed while being classified according to SCM channels of the WDM/SCM physical layer module.
REFERENCES:
patent: 6081523 (2000-06-01), Merchant et al.
patent: 6094439 (2000-07-01), Krishna et al.
patent: 6512742 (2003-01-01), Alexander, Jr. et al.
patent: 1994-7004907 (1994-12-01), None
patent: 1020030033407 (2003-05-01), None
“Dynamic Sub-carrier Multiplexed channel allocation and efficient frame distribution scheme in optical access networks” Kim, Namuk, et al.;The Institue of Electronics Engineers of Korea, '03 Communication Society, A Collection of thesis an Autumn Science Meeting; pp. 113-116; Nov. 2003, abstract.
Kim Byoung Whi
Kim Tae Yeon
Yoo Jeong Ju
Yun Hyun Ho
Blakely , Sokoloff, Taylor & Zafman LLP
Electronics and Telecommunications Reasearch Institute
Phan Hanh
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