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Jonathan Allen
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
Jonathan Allen   1/21/2011 9:42:38 PM
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This story reminds me of when I was in college about 50 years ago. One of my dorm mates was convinced that ESP existed and decided to try some experiments where one volunteer would concentrate on a randomly drawn playing card and a second volunteer in the next room would try to "receive" the telepathic message. I rigged a simple telegraph where the sender would squeeze a little key concealed in his fist while the receiver would watch a miniature lamp blink: 1 to 4 blinks for the suit, followed by 1 to 13 for the value. Of course the "telepathy" worked perfectly, or nearly so with no errors worse than one card value. We strung our believer along for at least a day till we finally could contain ourselves no longer and revealed the truth.

KB3001
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
KB3001   1/21/2011 9:46:29 PM
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Nice one new2coding :-)

David Ashton
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
David Ashton   1/22/2011 7:47:44 AM
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Yep, nice one there....I did laugh, I always appreciate a good joke, even when it's on me, but have you ever tried cleaning margarine off a windscreen???

David Ashton
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
David Ashton   1/22/2011 7:49:38 AM
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Great story Jonathan...would have liked more on the reaction of your ESP friend....you do realise that if you wrote this up in a bit more detail, Brian would pay you a hundred bucks for it??

David Ashton
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
David Ashton   1/22/2011 11:17:58 AM
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Just as an aside, my classmates also got my VW beetle one day and "bounced" it between two trees that were around 3 inches further apart than my VW was long. They were in hysterics watching me trying (unsuccessfully) to make a 100-point turn to get out. Eventually they took pity on me and "bounced" me out again. We had a lot of fun in that class....

prabhakar_deosthali
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re: EE Times EE Life Practical Jokes: Irish eyes weren't smiling
prabhakar_deosthali   1/22/2011 11:43:25 AM
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All the above stories remind me of a funny incident that occurred to me some 30 years ago. Our company in India had a software development contract from a company in Chicago developing PABXs. We had one team developing code in India and another team testing and integrating the same in USA. In those primitive days of software industry in India, we did not have a computer or the target system to debug and test our code. Nor were there any email or fax facility. So we used to write the code by hand and our typist used to type it on those old typewriters. After proofreading the same we used to send these coding sheets to USA, where our other team used to enter the code into the computer, debug, test and integrate it into the target system. One fine day, I had just handed over my coding sheet to the typist. After about half an hour my typist came with a winning smile on her face. "hey Prabhakar, look at this , the special sign you have coded. I had to over-type three different keys to get it right. Is this the one you have coded? " I looked at my handwritten sheet and the typed sheet and could not stop laughing. While coding I had scratched some of the mistakenly written character and assuming that it was some special computer sign my typist had diligently tried to create the same thing on her typewriter!



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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