RE: TI-H: QuickCam


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RE: TI-H: QuickCam




The macintosh quickcam isn't parallel its serial.  No problem there.  If a
7MHz macintosh can decode 4fps from a quickcam, I don't see why we need any
MMX or G3s...  :)

Grant

>Well, yes and no.  It's a great idea to work with, especially considering
>a quickcam interfaces via the parallel port.  However, we'd still need to
>do a parallel/serial conversion, and take the grayscale data and most
>likely convert it to just black and white (1's and 0's, and that's it)
>The quality would suck unless we wrote a grayscale driver, and the maximum
>proven speed over the link port before data integrity starts to suck is
>roughly 50Kbps.  While we can try to compress the video stream in real
>time, we'll probably need something a hell of a lot more powerful than an
>AVR (Intel MMX, Power PC, Alpha?) to do it right.  And those components
>don't come cheap.  If you want portable video, try to interface a small
>LCD to the quickcam and have the calculator control it via an AVR.  The TI
>would be a control and interface system, and none of the real video data
>would ever reach it.
>Christopher Kalos
>raptorone@stuytech.com
>Executive Director/Administrator
>Virtual Technologies Developer's Group
>
>
>----------
>From:   Jon Olson[SMTP:morph@jmss.com]
>Sent:   Saturday, January 17, 1998 12:38 AM
>To:     ti-hardware@lists.ticalc.org
>Subject:        Re: TI-H: QuickCam
>
>
>Yah...i'd love to try it...is the link port capable of handling enough
>bandwidth though? I know my parallel port has problems with it...
>
>
>-----Original Message-----
>From: Grant Stockly <gussie@alaska.net>
>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>Date: Saturday, January 17, 1998 1:19 AM
>Subject: TI-H: QuickCam
>
>
>>
>>Wouldn't it be cool to have a quickcam on a calculator?  It could be done
>>once I get more AVR chips.  Who wants to try with me?
>>
>>Grant
>>
>>
>>
>
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