High availability mechanism in a cable environment

Details High availability mechanism in a cable environment High availability mechanism in a cable environment

2007-02-20

2007-02-20

Kelley, Chris (Department: 2617)

Interactive video distribution systems

Video distribution system components

Headend

C725S116000, C714S004110, C370S217000

Reexamination Certificate

active

09625873

ABSTRACT:
A scalable fault tolerant cable headend switching system using modular switching or multiplexing devices. A radio frequency switch connects a series of adjacent cable headend element to a series of output cables. At least one spare cable headend element is connected along with the series. Each cable headend element is configured to be readily swapped with adjacent elements. Output cables are cascaded away from a faulty element toward a spare element when a fault is detected.

REFERENCES:
patent: 4672603 (1987-06-01), Conforti
patent: 5862312 (1999-01-01), Mann et al.
patent: 6052733 (2000-04-01), Mahalingam et al.
patent: 6442160 (2002-08-01), Lindberg et al.
patent: 6480551 (2002-11-01), Ohishi et al.

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