Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-07-29
2010-12-28
Duong, Frank (Department: 2474)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S465000, C370S537000
Reexamination Certificate
active
07860109
ABSTRACT:
A host device interfacing with a point of deployment (POD) and a method of processing a broadcasting data are disclosed. A broadband interface unit received a MPEG transport packet through a cable. A demodulator demodulates the received MPEG transport packet. An IP physical interface unit for received a frame including an internet protocol (IP) packet through a network. A routing engine transforms the frame to an IP packet and routs the IP packet based on a destination information included in the frame. And a multiplexer generates IP MPEG packet and CableCARD MPEG packet by appending a Packet Header carrying identification information and packet identification information to each of the IP packet and the demodulated MPEG transport packet, multiplexes the IP MPEG packet and the CableCARD MPEG packet and sends the multiplexed IP MPEG packet and CableCARD MPEG packet to the POD.
REFERENCES:
patent: 2005/0177845 (2005-08-01), Patariu et al.
patent: 2007/0074256 (2007-03-01), Jung et al.
patent: 2007/0250872 (2007-10-01), Dua
patent: 1748645 (2007-01-01), None
DOCSIS Set-top Gateway (DSG) Interface, SP-DSG-I01-020228, 35 pages, Feb. 2002.
Jung et al, Design and Implementation of a Multi-stream CableCARD with a High-Speed DVB-Common Descrambler, ACM, 4 pages, Oct. 2006.
“OpenCable Specifications—Multi-Stream CableCARD Interface”, 20050331, (Mar. 2005), XP002507410, Cahp 1, pp. 1-3; Chap 3, pp. 10-15, Sec 4.1.5, pp. 22-25, Sec. 6.15, pp. 81-82, Sec. 7.2.3., p. 122.
Joon-Young Jung et al., “Design and Implementation of a High-Speed Descrambling Engine for Multi-Stream CableCARD”, IEEE Transactions on Consuimer Electronics, IEE Service Center, NY, NY, vol. 53, No. 1 (2007) pp. 166-171), XP011175938, §§ I, II, pp. 166-167, Figs. 1-4.
Duong Frank
LG Electronics Inc.
McKenna Long & Aldridge LLP
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