Single wire return device including a QAM modulator for...

Interactive video distribution systems – Video distribution system with upstream communication – Transmission network

Reexamination Certificate

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Details

C370S419000, C725S127000, C398S067000

Reexamination Certificate

active

07657919

ABSTRACT:
Systems and methods are disclosed for receiving IP video and audio signals at a subscriber's premises. A QAM modulator then modulates the IP signals and provides the modulated signals to a conventional digital home communications terminal (DHCT). Accordingly, conventional DHCTs can be used in an IP-based network.

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patent: WO 01/11808 (2001-02-01), None
patent: WO 02/41558 (2002-05-01), None
patent: WO 03/005612 (2003-01-01), None

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