Locks – Special application – For closures
Reexamination Certificate
2003-10-21
2009-02-24
Moe, Aung S (Department: 2616)
Locks
Special application
For closures
C370S392000
Reexamination Certificate
active
07493786
ABSTRACT:
MAC (Media Access Control) for an EPON (Ethernet Passive Optical Network system) defined in an IEEE (Institute of Electrical and Electronics Engineers) 802.3ah EFM (Ethernet in the First Mile) standard is implemented using general MAC based on an IEEE 802.3 standard. LLID (Logical Link ID) information is inserted at a predetermined position of a frame outside its preamble and the frame containing the LLID information is transferred to a higher layer so that general MAC can be used as MAC for the EPON system. A physical layer of the EPON system contains LLID information within a preamble and transfers the preamble containing the LLID information. An RS (Reconciliation Sublayer) configures a new Ethernet frame by inserting the LLID information at a predetermined position of the Ethernet frame outside the preamble. The RS transfers the new Ethernet frame to a higher data link layer of the EPON system. The data link layer transfers the new Ethernet frame containing the LLID information.
REFERENCES:
patent: 7274695 (2007-09-01), Kim et al.
patent: 2003/0117998 (2003-06-01), Sala et al.
Dolors Sala; “EPON Layering;” IEEE 802.3AH Ethernet in the First Mile Task Force; Jul. 7, 2002; XP002366822.
Tae-Whan Yoo et al.; “Suggestion For The Layering Architecture;” IEEE.802.3AH Ethernet in the First Mile Task Force; Jul. 2002; XP002366823.
Jin Kim; “Authentication and Privacy in EPON;” IEEE 802.3AH Ethernet in the First Mile Task Force; Jul. 2002; XP002366824.
Ajay Gummalla; “EPON Compliance Architecture;” IEEE 802.3AH Ethernet in the First Mile Task Force; Jan. 2002; XP002238653.
Yukihiro Fujimoto et al.; “Layering of Point to Point Emulation;” IEEE 802.3AH Ethernet in the First Mile Task Force; Nov. 2001; XP002243927.
Dolors Sala et al.; “MPCP Baseline Proposal Architecture and Layering Model (II);” IEEE 802.3AH Ethernet in the First Mile Tas Force; May 13, 2002; XP002366825.
Gerry Pesavento et al.; Ethernet Passive Optical Network (EPON) Architecture for Broadband Access; Optical Networks Magazine, vol. 4, No. 1; Jan. 2003; XP001162954.
IEEE; “Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications;”IEEE 802.3-2002; Mar. 8, 2002; XP002366826.
Jang Soon-Ho
Joung Do-Young
Kim Jin-Hee
Kim Young-Seok
Lee Min-Hyo
Cha & Reiter LLC
Haile Feben
Moe Aung S
Samsung Electronics Co,. Ltd.
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