Showing posts with label Tom Hausherr. Show all posts
Showing posts with label Tom Hausherr. Show all posts

Saturday, April 13, 2013

Crosstalking Aggressors and Victims

A few weeks ago, I encountered "aggressor" and "victim" in a document that I needed to format and refine. I had not heard of them, and the anthropomorphic nature made me cringe. They pertained to crosstalk, a term I AM familiar with.

My curiosity nudged me to find out more about the terms. I did some Google searches and saw "aggressor" and "victim" commonly used in numerous articles.When I used to design printed circuit boards, crosstalk was described, but not in terms of doer and do-ee. (My blog, my prerogative to make up terms.)

I looked at some PCB design books. The Design & Drafting of Printed Circuits (1979, Darryl Lindsey) doesn't even index crosstalk, but I remember my instructor talking about crosstalk and EMI. Design Guidelines for Surface Mount Technology (1990, John E. Traister) does not index crosstalk, doesn't list crosstalk headings in TOC.

Printed Circuits Design Featuring Computer-Aided Technologies (1991, Gerald L. Ginsberg) does index and discuss crosstalk. However, no "aggressor" or "victim". I thought he might not be around to ask, or his knowledge no longer up-to-date. His most recent book was 1994, the earliest was in 1976. I didn't spot his name on LinkedIn.

I sent emails to some LinkedIn connections that I thought might be able to suggest alternative terms. The people who replied had no suggestions of alternatives, and they all stated that the terms were very common. I'd say institutionalized and ingrained.

Another avenue I tried was sending out an inquiry to five LinkedIn groups—Society for Technical Communication, STC Technical Editing SIG, Adobe FrameMaker, Door64: Austin High Tech STEM Events, and IPC - Association Connecting Electronics Industries. I received several pairs of suggestions. (To readers who recognize their contributions, thanks!) It was nice to see that people gave the terms some thought. However, I thought some terms might possibly evoke more confusion or misunderstanding than using "aggressor" and "victim".
  • crosstalk cause, crosstalk reaction
  • crosstalk-initiator, crosstalk-recipient
  • crosstalk source (ref'd as source later), crosstalk sink (ref'd as sink later)
  • exciter, reactor or responder
  • ingress, egress
  • interfering signal, affected signal
  • noise generator or radiator, noise receiver
  • source, target
Someone suggested "conversant" or "intruder". Not sure "conversant" applies for either "aggressor" or "victim", as it's an adjective. I thought "encroacher" might sound a reasonable "aggressor" replacement, but I couldn't think of a good parallel opposite term. Eh, as for "ingress" or "egress", seems weird that entering and exiting might pertain to crosstalk.

Tom Hausherr, long-time PCB designer, and I exchanged emails. Besides discussing board design (interesting and very techy medical equipment company for his workplace), he also recalled the arrival of the accompanying terms.
The first time I heard of the term aggressor and victim was doing PCB layout for AMCC component manufacturer trying to produce chip sets that exceeded 1 GHz and actually we were going for 3 GHz. The aggressor/victim pair of terms is in our everyday conversation today.

The aggressor is the electromagnetic waveform from high-voltage parts (power supply), high speed (clock) or audio/video traces and vias that interfere with other transmission lines. The victim is the weaker, affected neighbor (or more neighbors).
I've concluded that "aggressor" and "victim" are entrenched terms. I think replacement terms are unlikely for the following possible reasons:
  • Many more characters
  • Ambiguity because of more than one meaning
  • Unclear imagery
Any other candidate replacement terms? Anyone? Anyone?

Tuesday, August 17, 2010

A Convenient Triple-dose Pnutty Butter Cooky Batch

AHOT (Austin Heart of Texas) Event

AHOT, an organization for printed circuit board design professionals, recently held its annual Vendor Day. It was well-attended—maybe 100ish. Renowned speaker Tom Hausherr, EDA Library Product Manager at Mentor Graphics Corporation, delivered 4 different presentations. The event had 16 sponsors this year, up from 12 last year. You can download the announcement pdf with hyperlinks to the sponsors and speaker if you are on LinkedIn.

Cooky Musings

I decided to take in cookies as I did last year. I'd been wanting to try out a boxed peanut butter cookie mix. Both Krusteaz and Betty Crocker put out a peanut butter cookie mix. Each brand's box contents weigh 17.5 ounces and call for 1 egg, 1 T water, and 3 T oil. The standard yield is 36 2-inch diameter cookies. (I myself wound up with 44.)

I like PB cookies okay, but think of them as somewhat boring. I decided to turbocharge the peanut flavor. I started out mixing the batter according to the box instructions, then added peanuts and Wilton Peanut Butter Flavor Candy Melts—for sale at bakery supply stores and craft shops. Other than dose up the flavor with chopping up and mixing in the two additives, I didn't modify the box recipe.

After I removed a baked batch out of the oven, I was surprised that the chopped candies seemed to have disappeared. I anticipated they would be like chocolate chips or chocolate chunks and be visible. I'm not that knowledgeable about the Wilton candies, but it's possible that they might have a lower melting temperature than chocolate chips and just melted into the cookies during baking. In any case, I received rave reviews for the hefty peanut flavor.

It did take me awhile to settle on a name, although I kicked around other titles, such as "Xtra P-nutty PB Cookies", PB and Pnutty Madness Cookies", "P-nut Trio Cookies", "Triple P-nut cookies", and "P-nut Trilogy". Ed E, a Vendor Day attendee and enthusiastic praiser of my cookies, was the one who suggested "P-nut Trilogy".

Ingredients

To keep the recipe looking uncomplicated, I've listed a somewhat compressed list of ingredients. People experienced enough with cooky baking will have no problems whipping up a batch. Novices might need to peruse the list a little more closely.

  • 1 pkg peanut butter cooky mix, ingredients stirred together per instructions (usually requiring combining of water, egg, oil)
  • 4 oz. peanuts, coarsely chopped
  • 4 oz peanut butter flavored candies, coarsely chopped (e.g., Wilton brand)

Equipment

  • cooky pan(s)
  • pastry blender
  • bowl
  • measuring cup
  • measuring spoon(s)
  • small rubber spatula
  • cooky spatula to lift and transfer baked cookies
  • cooling rack for done cookies

Instructions

  1. Preheat the oven to 375 degrees.
  2. Pour the cooky mix powder into a medium-large mixing bowl.
  3. In a cup, combine the egg, water, and oil.
  4. Pour the wet ingredients into the larger container and use a pastry blender to stir the ingredients together.
  5. Stir in the chopped peanuts.
  6. Stir in the chopped candies.
  7. Use a round tablespoon to scoop the dough, then level it.
  8. Use the spatula to turn and drop the spoon's dough onto the cooky sheet. (This dough was very dense. After a few dollops, I put on vinyl gloves to shape and dispense the dollops individually.)
  9. Flatten and spread the dough using the bottom of a glass.
  10. Bake for about 8 minutes.
  11. Use the cooky spatula to lift and transfer the done cookies onto cooling rack.
Additional Past Cooky Recipes