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From: markf@hpuxa.ircc.ohio-state.edu (Mark A. Fullmer)
Newsgroups: sci.electronics
Subject: Re: cable TV and better black boxes
Summary: if
Keywords: CATV, filters, descramblers
Message-ID: <5341@nisca.ircc.ohio-state.edu>
Date: 5 Oct 90 02:48:08 GMT
References: <1990Oct4.133730.28246@mlb.semi.harris.com> <229@nachos.SSESCO.com> <8627@milton.u.washington.edu>
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>From: whit@milton.u.washington.edu (John Whitmore)
>	and allows any channel you tune to be descrambled, regardless
>of whether you paid extra for that particular 'premium' channel.
>It's necessary for the cable company to know exactly which channel
>is being unscrambled, and whether that particular channel SHOULD be
>descrambled.  

Not if each channel has information encoded saying 'I'm HBO' or
'I'm V-Cable Pay channel #2'

The decoding box could then be programmed (through the cable).

I beleive Zenith does something similar to this in one of their
high-end tee-vee systems.


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