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Technology Stocks : C-Cube

CUBE 36.64

-0.5%

Dec 5 9:30 AM EST

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To: Stoctrash who wrote (25335)	11/16/1997 10:02:00 PM
From: J Fieb	Read Replies (1) of 50808

FredE, Look who has "wicked encoders" Re: television and web ------------------------------------------------------------------------ From "David Schmitt" <ksw92.93@worldnet.att.net> Organization AT&T WorldNet Services Date 11 Nov 1997 16:42:32 GMT Newsgroups sci.engr.television.broadcast Message-ID <64a1to$cka@bgtnsc02.worldnet.att.net> References 1 2 ------------------------------------------------------------------------ Before this spins off into another r-war, let me point out that DTV is a much more efficient use of 6 MHz of bandwidth than NTSC could ever hope to be. A real-world example: Right now in LA there is a little-known (as yet) all digital TV system run by Pacific Bell Video Services. It's a MMDS network using leased ITFS channels. Channels are MPEG-2 encoded and rate-limited to 3 Mbits/sec. They are packing, I believe, 7 (maybe 8) of these encoded channels in each 6 MHz ITFS channel for a total of something around 140 A/V channels and 30-something audio-only channels. QoS is very good, better than NTSC if the source is better than NTSC (Divicom makes some wicked encoders). As an ITFS channel lessor, I use this system extensively. Now with the current FCC ruling on talkback on ITFS (ie. "two-way"), we are looking at providing data. How about that? We'll have wireless web access at better than T1 rates. I challenge you to draw a line of demarcation between "The Web" and "TV" in this system. Everything is ATM packets: the MPEG-2 streams and data connections. BTW, the fastest web connection that I've personnaly seen is a T-3 (45Mbit/s). That's more bitrate than we can currently modulate over a 6 MHz channel (128 QAM excepted -- it's cable based). There's also OC-3 (155 Mbit/s).

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