Interactive video distribution systems – Satellite video distribution system – Receiver
Reexamination Certificate
2006-05-02
2006-05-02
Vu, Ngoc (Department: 2611)
Interactive video distribution systems
Satellite video distribution system
Receiver
C725S067000, C725S063000, C725S071000
Reexamination Certificate
active
07039937
ABSTRACT:
A system and method for providing signals from a plurality of satellites to a plurality of receiving units is disclosed. The system and method of the present invention make efficient use of multi-switches to enable multiple receiving units to seamlessly alternate between channels of various satellite signals, and optionally between satellite signals and terrestrial antenna signals. In basic form, first and second receptors, such as DISH satellite LNBs, are connected to input ports of primary Digital Broadcast System multi-switches having multiple input ports and output ports. The output ports of the first such primary multi-switch are conductively connected to first input ports of at least two secondary multi-switches, and the output ports of the second such primary multi-switch are conductively connected to second input ports of the same secondary multi-switches. The outputs of the secondary multi-switches are provided to receiving units. The multi-switches are matched such that poling and circuitry components are compatible and enable the seamless alternation between channels originating from different signals.
REFERENCES:
patent: 6211844 (2001-04-01), Davi et al.
patent: 6757519 (2004-06-01), Peyrovian
patent: 2002/0178454 (2002-11-01), Antoine et al.
Law Office of Marc D. Machtinger, Ltd.
Vu Ngoc
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