Alt-BEAM Archive
Message #00021
To: RoboDR@aol.com, beam@corp.sgi.com
From: "Ben Hitchcock" beh01@uow.edu.au
Date: Fri, 29 Jan 1999 21:24:21 +0000
Subject: [alt-beam] Re: A question and an idea
Yep. what you need is a high-pass filter. You connect a capacitor to the
output from your sensor, and connect the other end to the input of an
inverter. Then get a resistor, and tie the input of the inverter to ground.
What you essentially have is something that looks exactly like a microcore
neuron, but instead of getting its input from another neuron, it gets its
input from a sensor. Changing the time constant of the Resistor/capacitor
will change the lowest frequency that the neuron is capable of receiving.
There is no upper frequency limit in this configuration.
Hope this helps!
Ben
----------
>From: RoboDR@aol.com
>To: beam@corp.sgi.com
>Subject: A question and an idea
>Date: Fri, Jan 29, 1999, 2:59
>
>The question:
>
>Is there a neuron or a group of neurons that can trigger only when an abrupt
>change in voltage occurs. For example, if the input of the circut fluctuated
>randomly between 0 and 5 volts. Is there a circut that would ignor the slow
>transitions in voltage but when an abrupt change occurs it triggers?
>
>
>The idea
>
>I'm sure I'm not the first one to consider this but I havent seen it on any
>web sites. Anyway, a thing that would, in my oppinion, greatly improve the
>abilities of robots would be a form of communication. I think a possibility
>for communication would be a set of Nv Neurons. Each neuron would have a
>different delay. All these neurons would be tied to an output device such as
>an IR LED or a speaker. Each Neuron would represent a different idea to be
>expressed, such as "danger". On the reciving end there would be an input
>device that would correspond to the output device. The input would be attached
>to several Nu neurons tied together. These neurons would filter out the pulse
>to determine what is being said. The robot would then decide what to do.
>Please tell me what you think of this Idea.
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