Ransom W. Stephens, Ph.D.

Resources

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Resources:

Three Part Knowledge Series sponsored by Tektronix Instruments - 2008

 “Answering Next-Gen Serial Challenges”

• Part One: How Stressing a Receiver Removes Stress from a Designer
• Part Two: The Case of the Closing Eye
• Part Three: Acting on an Impulse: Equalization and Emphasis

Six Part Knowledge Series sponsored by Tektronix Instruments - 2006-2007

Part One:  The Meaning of Total Jitter

Part Two:  What the Dual-Dirac Model is and What it is Not

Part three: All About the Acronyms: RJ, DJ, DDJ, ISI, DCD, ...

Part Four: Jitter Analysis in Systems with Crosstalk

Part Five:   Clock Recovery in Serial-Data Systems

Part Six:    Reference Clock Jitter and Data Jitter

• Characterization of Gaussian Noise Sources - with Bob Muro, NoiseCom, DesignCon 2008.
• The Future of Multi-Clock Systems - with Roman Boroditsky and Juan Gomez of NEL, DesignCon2008; also available as a White Paper for NEL Frequency Controls, Inc., 2007.
• Using Clock Jitter Analysis to Reduce BER in Serial Data Applications - an Application Note written without a byline for Agilent Technologies, 2006.
• Anticipating, Characterizing, and Avoiding Problems with Crosstalk - presented at DesignCon in 2006.
• Equalization: The Correction and Analysis of Degraded Signals - a white paper written with a byline for Agilent Technologies. See also, Opening Closed Eyes: Analysis and Equalization of High Data Rate Signals on Buses and Backplanes - presented at DesignCon2006.
• The Rules of Jitter Analysis - published in the online trade magazine, AnalogZone for Agilent Technologies.
• Jitter Analysis: The dual-Dirac model, RJ/DJ, and Q-scale - a white paper for Agilent Technologies that is the paper most frequently referenced on dual-Dirac and Q-scale by standards groups and other authors.
• Jitterfest: Why Different Jitter Analyzers Give Different Results and Which is Right - published in the online trade magazine, AnalogZone. See also, Comparison of Different Jitter Analysis Techniques with a Precision Jitter Transmitter - white paper describing the results of the study led by Ransom for Agilent Technologies to determine the accuracy of different jitter analysis methods; and Jitter Analysis: What Works, What Doesn’t, and Why - a web-seminar presented live that set and attendance record for Agilent Technologies with over 600 viewers when delivered live and a total of over 2000 viewers including the archived broadcast.
• Analyzing Jitter at High Data Rates - published in IEEE Optical Communications.
• Measurement of Total Jitter at Low Probability Levels Using the Optimized BERT Scan Method - with Marcus Mueller and Russ McHugh of Agilent Technologies - this paper presented a new technique invented by Ransom that reduced test time by a factor of ten with improved accuracy and won a DesignCon paper award.
• Precision Jitter Transmitter - an application note written with Jim Stimple of Agilent Technologies, documents the most accurate jitter transmitter every made - developed in a project conceived and led by Ransom.
• Back to Basics in Optical Technology - a day-long seminar created by Ransom and delivered coast-to-coast at the sites of Agilent Technologies’ customers.

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Like a dragonfly, darting from task to task and mastering every  one.