Video modem termination system and method

Details Video modem termination system and method Video modem termination system and method

2004-07-15

2010-12-07

Miller, John W (Department: 2421)

Interactive video distribution systems

Video distribution system with upstream communication

Having link to external network

C725S120000, C725S131000, C370S352000

Reexamination Certificate

active

07849488

ABSTRACT:
Highly asymmetrical nature of digital video allows a single Cable Modem Termination System (CMTS) like device to support the transmission over a thousand individual high-quality IP packetized video data channels terminating into low cost cable modem units. A Video Modem Terminating System (VMTS) unit handles housekeeping information. As the amount of upstream housekeeping data are small, even for 1000 simultaneous TV channels, the data can be inserted into the digital video cell streams and packaged within IP packet envelopes. The VMTS unit is equally effective for MPEG-2, MPEG-4, Microsoft Media 9 and other digital encoding of video and audio signals.

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