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From: hr@uicsl.UUCP
Newsgroups: net.micro.pc
Subject: Re: IBM Graphics improvement
Message-ID: <7900002@uicsl>
Date: Mon, 30-Sep-85 12:13:00 EDT
Article-I.D.: uicsl.7900002
Posted: Mon Sep 30 12:13:00 1985
Date-Received: Wed, 2-Oct-85 08:09:28 EDT
References: <579@tekigm.UUCP>
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Nf-ID: #R:tekigm.UUCP:-57900:uicsl:7900002:000:655
Nf-From: uicsl.UUCP!hr    Sep 30 11:13:00 1985


<>

	"The scheme, or method these others are using to obtain >16 colors
	is.. [to] pulse width modulat[e] the different digital lines during
	the normal pixel period (or slightly longer than normal..."


How well does this work? It seems to me that halving a pulse to a pixel
would require higher bandwidth amps in the monitor. Perhaps the smaller
pulse width isn't so small that it's filtered out. As for "slightly longer
than normal", how much wider can the pulse be? If it were too long, wouldn't
the beam just strike the shadow mask? Or, don't the normal pulses paint
the entire phosphor dot?

						harold ravlin
					{ihnp4,pur-ee}!uiucdcs!uicsl!hr