Newsgroups: sci.image.processing
From: paul@pcserv.demon.co.uk (Paul Carpenter)
Path: cantaloupe.srv.cs.cmu.edu!nntp.club.cc.cmu.edu!hudson.lm.com!news.pop.psu.edu!news.cac.psu.edu!howland.reston.ans.net!news.sprintlink.net!demon!pcserv.demon.co.uk!paul
Subject: Re: 12bit/pixel frame grabber
References: <D1sHqF.KtB@prl.philips.nl>
Organization: PC Services
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Date: Tue, 3 Jan 1995 19:36:07 +0000
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horemans@prl.philips.nl "" writes:
-I'm looking for a frame grabber for a PC wich can acquire an image of
- 12bit/pixel at a speed of 40MHz(!). The image can have a size of multiples of
- 1K (nKxmK). The frame grabber must have a digital input, RS-422. Because of
- the different types of images (speed, size) it has to be a variable scan frame
- grabber (non-standard video sources).
-I haven't found one yThe memory has to be seamless.

Have you tried looking at Alacron and Digital Interface cards?

This can take up to 64 bits wide, at up to 30MHz per bytestream or the newer
Digital I/O card with 8/16/32bits at 40MHz per byte stream. These daughter cards
fit onto i860 DSP cards which can be configured for memory currently upto 274Mb!

Transfer is by internal DMA to memory, and the inputs are:-

	Digital Input	TTL/RS422

	Digital I/O	Add driver chips for RS422 or whatever else you require.

Try email to info@alacron.com, and they can put you in touch with your nearest 
distributor, if you want to look at this and experience difficulties email me.

Might not be what you readily class as a frame grabber, but I know these 
combinations are  being used for high speed image capture in the field.

-- 
Paul - "Any people you should meet are the products of a deranged imagination"
