Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!mcdphx!citek.phx.mcd.mot.com!hbg6 From: hbg6@citek.phx.mcd.mot.com Newsgroups: sci.electronics Subject: Re:Analog Signal on Floppy Drives? Message-ID: <13183@mcdphx.phx.mcd.mot.com> Date: 10 Jul 90 16:49:31 GMT Sender: listen@mcdphx.phx.mcd.mot.com Reply-To: hbg6@citek.phx.mcd.mot.com Organization: Motorola Microcomputer Division, Tempe, Az. Lines: 27 References: Distribution: In article kz08+@andrew.cmu.edu (Ken Zuroski) writes: > >Can anyone tell me if this is a common thing, that is, storing analog >information (or rather, storing information in analog) on media >conventionally used to store digital info? Obviously the hardware We evaluated an inspection system in our plant about 8 months ago which stored frames of video onto a 3 1/2" hard drive. The idea was to store an image of a perfect circuit board in the system, then electronically compare it to a live image of the same board type. It's difficult to get any hard technical details from a salesman but as I understand it, one frame takes up one track on the media. One field is on side one and one field is on side two. As the disk rotates, it switches from one side to the other to construct the full frame. They also had a sharp security system for a guard gate where a person would 'swipe' his badge through a reader and the system would display his picture on a monitor in the guard station. Picture no match - person no enter. If you need it, I can dig out the file and give you their company details. John Schuch ..................................................................... All opinions expressed are mine and not Motorolas, their loss. .....................................................................