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From: farjamit@eecs.cs.pdx.edu (Tom Farjami)
Newsgroups: sci.electronics
Subject: Motion detection
Message-ID: <2922@pdxgate.UUCP>
Date: 26 Jun 91 02:19:13 GMT
Sender: news@pdxgate.UUCP
Reply-To: farjamit@eecs.cs.pdx.edu (Tom Farjami)
Organization: Portland State University, Portland, OR
Lines: 34







     Greetings,


     I have a biologically motivated solution for  detection
of  one  directional  motion.  However  I have been thinking
about how one might go about designing, say a 2 input motion
detector using logic gates ( and, or, inverts and flip-flops
).


     Surely, one not only needs to record the event, but you
also  need  to  have  a  sense of time. Solution is not very
easy. If you have a solution please do not hesitate to email
me  your idea; I like to hear it. I am basically looking for
a black box that has 2 inputs A and B and one  output.  When
signal  A  is  stimulated before B, we have motion detection
and output should be high; otherwise output is silent. Thank
you.


     Sincerely,


     Tom Farjami ( farjamit@eecs.ee.pdx.edu )



                       June 25, 1991