Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : AUTOHOME, Inc -- Ignore unavailable to you. Want to Upgrade?

To: Boplicity who wrote (10858)	6/9/1999 8:57:00 AM
From: Frank A. Coluccio	Read Replies (1) \| Respond to of 29970

Greg, as relates to HFC systems, at the present time TCP/IP is mostly confined to the individual single (perhaps future multiple) channel(s) that are used for cable modem Internet access. The basic HFC continues at this time to be broadcast in nature, with some exceptions noted below. Where TCP/IP is used, it is confined to the data link and routing levels of the cable modem channel. The rest of the spectrum which is used for program TV channel services is still largely analog (frequency division multiplexing, or FDM), save for the emerging upper region of the spectrum (550 MHz to 750-1000 MHz) which will integrate the use of digital coding and compression schemes in the future. But even here, the use of TCP/IP will be specific to certain applications, only. It (TCP/IP's utility) will probably grow in this upper region over time, no doubt. There are some analog forms of multicasting being used today in the cable TV business, like partitioned viewing for pay per views, or in "ad insertion" formats that are performed in order to deliver the local pizza parlor's specials in a given locale or neighborhood, to the exclusion of other neighborhoods. Or according to some other set of criteria along demographic or community of interest (educational, for example) guidelines. And even here, the term is stretched if we were to apply today's TCP/IP variant as the rule. Multicasting usually connotes sending focused content to a discreet subset of the universe which is covered by the greater broodcast capabilities. Video streaming to a select set of viewers on the 'net (the chairman's quarterly message) is an example of multicasting on the 'net, as was pioneered initially by the M-Bone groups. "M-" standing for multicast. Regards, Frank Coluccio