From: earlcox@earlcoxreports.com   
      
   >>(Sorry if this is probably not what you want to see)   
      
   Not at all Patrick -- while not about work you have done, it is,   
   never-the-less, exactly the kind of question I had in mind. Fuzzy logic has   
   wide applicability in control theory applications including AGC. Let me   
   assemble some cross-references on the subject and, in the interim, let's see   
   if anyone else can jump in with some more specific comments.   
      
   (pardon my top posting, but since yours was also a top post, I thought my   
   reply might be lost)   
      
   e a r l   
      
      
   "patrika"  wrote in message   
   news:dsudnZ1AIIHmfTnfRVn-sQ@comcast.com...   
   > Hi,   
   >   
   > I do agree that there seems to be a lack of content.  And I would love   
   > to learn/do fuzzy logic type projects.  I just do not know how to begin   
   > (plus I probably need to learn a little more about them).   
   >   
   > I have been thinking that fuzzy logic might be good to use on an   
   > embedded system that uses automatic gain control (AGC).  The current way   
   > that our products run is to compare a value and use a look up table to   
   > get a pre-programmed value to use for the AGC.  While this is a decent   
   > method, it means that each product is basically customized.  I was   
   > thinking that fuzzy logic could be used to better control the AGC and   
   > hopefully reduce the customization and time required to do this by a   
   > professional.   
   >   
   > Any thoughts, ideas, suggestions for getting started would be   
   > appreciated.  (Sorry if this is probably not what you want to see.)   
   >   
   > Basically, there is a DAC, either an 8 or 12-bit, that reads the level   
   > of the gain.  If the value falls into our window then nothing needs to   
   > be done.  If it goes positive or negative then we either add or subtract   
   > attenuation.  Now, if the signal gets too strong too fast then it will   
   > trigger an interrupt that will cause the AGC to react much faster.  This   
   > is just a quick overview.  Some other notes perhaps worth mentioning is   
   > that we use a custom kernel developed in house.  We usually have to work   
   > with a small amount of RAM, small flash parts and use as little power as   
   > possible.   
   >   
   > Hope to hear form you.   
   > Patrick   
   >   
   > EarlCox wrote:   
   > > The fuzzy news group suffers from a unique and chronic illness – a lack   
   of   
   > > context in which to discuss fuzzy logic. Threads ramble on and on and on   
   > > about the meaning of fuzziness, the nature of fuzzy subsets, the ways in   
   > > which possibility, necessity, and probability are reflected in the   
   mechanics   
   > > of logical expressions BUT no one is discussing problems with the actual   
   use   
   > > of fuzzy logic in real world applications. No one is asking questions   
   like,   
   > >   
   > > I am trying to represent portfolio concentration levels according to   
   > > investor suitability and safety constraints but how do I use elastic   
   fuzzy   
   > > overlaps to…   
   > >   
   > > What is the best way to defuzzify a time varying fuzzy set so that   
   > > seasonality is maintained in….   
   > >   
   > > I have a fuzzy SQL system, is there a way to rank the compatibility   
   index   
   > > numbers so that ...   
   > >   
   > > I have a genetic project configuration and scheduling system. I would   
   like   
   > > to use fuzzy objective functions and fuzzy constrains to….   
   > >   
   > > Application base questions are fairly common on the genetic and neural   
   > > network news groups. They almost NEVER appear in this news group.   
   Besides   
   > > someone like myself, isn’t anyone doing any real world fuzzy systems for   
   > > real paying customers??? The only way to really explain how fuzzy   
   reasoning   
   > > works to those who are seeking to appreciate its capabilities is to give   
   > > them examples from our real-life projects. If no one is actually   
   building   
   > > fuzzy systems, if everyone is just doing thesis work or farming out   
   projects   
   > > to a cadre of grad students, then we might as well close down this news   
   > > group.   
   > >   
   > > Come to think of it, for all intents and purposes, it is closed down.   
   > >   
   > > Anyway, just a bit of frustration.   
   > >   
   > > I’ll go away now.   
   > >   
   > > Earl   
   > > --   
   > >   
   > >   
   > > E a r l  C o x   
   > > Founder and President   
   > > Scianta Intelligence, LLC   
   > > Turn Knowledge Into Intelligence   
   > > w w w dot scianta dot com   
   > >   
   > > 1289 N. Fordham Blvd. Suite 312   
   > > Chapel Hill, NC 27514   
   > >   
   > > (AUTHOR:   
   > > "The Fuzzy Systems Handbook" (1994)   
   > > "Fuzzy Logic for Business and Industry" (1995)   
   > > "Beyond Humanity: CyberEvolution and Future Minds"   
   > > (1996, with Greg Paul, Paleontologist/Artist)   
   > > "The Fuzzy Systems Handbook, 2nd Ed." (1998)   
   > > "Fuzzy Modeling and Genetic Algorithms   
   > >      for Data Mining and Exploration" (2005)   
   > >   
   > >   
      
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