Article View: sci.electronics
Article #9829Re: Cable Competition at Last!
From: Bob Myers
Date: Mon, 28 Jan 1991 19:58
Date: Mon, 28 Jan 1991 19:58
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>>> 480 lines
>>
>>525 is standard. You're talking about a picture which is not as
>>good as normal tv broadcasts.
>
>
>He's talking about 480 HORIZONTAL lines, not vertical lines. This is
>considerably BETTER than broadcast (which is ~330 or so). This DBS sounds
Actually, no, he IS talking about vertical lines, not horizontal. (Think
about it: the horizontal resolution is the number of *vertical* lines which
can be resolved). And we should also point out that when we talk about
lines of *resolution*, this is actually (usually) referring to line *pairs*.
Speaking of "330 lines" resolution actually means something roughly equivalent
to a display with 660 *pixels* in each horizontal line. (Broadcast TV being
an analog medium, the idea of "pixels" did not originate there and is
somewhat of a foreign idea, if you consider the language that's typically
used.) And to get back to the original point, yes, a resolution of 480 lines
*is* better than what we're normally used to in broadcast television.
Bob Myers KC0EW HP Graphics Tech. Div.| Opinions expressed here are not
Ft. Collins, Colorado | those of my employer or any other
myers@fc.hp.com | sentient life-form on this planet.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!hplabs!hpfcso!hpfcdj!myers From: myers@hpfcdj.HP.COM (Bob Myers) Newsgroups: sci.electronics Subject: Re: Cable Competition at Last! Message-ID: <17660146@hpfcdj.HP.COM> Date: 28 Jan 91 19:58:21 GMT References: <620@wybbs.mi.org> Organization: Hewlett Packard -- Fort Collins, CO Lines: 24