Talk:PathWave Design

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Besser's Impact on MDS?

Any one have any references to the folklore here at Agilent (written by me but deleted by Joe Barnhart):

http://en.wiki.x.io/w/index.php?title=EEsof&diff=278396410&oldid=277987162

...that Les Besser's work at H-P many years earlier (1966-1969) actually sowed the seeds of what was to become commercialized as MDS in 1985. Not the same code obviously, but the general ideas formed a continuous thread.

Woz2 (talk) 16:07, 13 April 2009 (UTC)[reply]

Contribution from IP editor

I copy-pasted reverted potentially useful IP editor contributions (184.100.61.15, presumably EEsof co-founder Bill Childs himself) here:

Corrections from Bill Childs.

Libra was created completely in-house by full time EEsof employees Dr. Charles Holmes and Mr. Yo-Chien Yuan. Libra was release commercially in 1988 and sold hundreds of licenses. Libra development did not benefit from any connection with Berkeley or Hewlett-Packard or Ken Kundert.

The concept of harmonic balance simulation was well known by 1980. Bill Childs wrote a specialized harmonic balanced simulator for microwave mixer design in the early 1970's at COMSAT Labs.

Touchstone was a full feature linear microwave simulator targeted on the 8088/8087 PC. Its high speed on this machine required new thinking. The first version of Touchstone was written entirely from scratch by Bill Childs and Dr. Charles Holmes in the 1983-1984 period. First sales were in April 1984. The ability to "tune" a parameter value and see the graphical response in near real time as if the engineer were in the lab was greatly appreciated by microwave engineers world wide. Thousands of Touchstone licenses were sold.

Bill Childs was not a Compact employee when EEsof was founded. He was a microwave amplifier design engineer at Amplica.

The questions is how/if to get reliable sources? Woz2 (talk) 00:45, 3 March 2014 (UTC)[reply]

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"today known as Keysight EEsof EDA"

Exploring the linked web pages and other Google results, it appears that Keysight Technologies has dropped the names "EEsof EDA" from their product lines. That particular brand name appears to still be used as the title of the YouTube channel, but this seems to be something of a relic/anachronism, since on all of the official web pages only "Keysight" and "Keysight Technologies" is referred to. Note, for example, that former page [1], which is still visible in the Google cache of March 8, 2018 and did refer to "Keysight EEsof Electronic Design Automation (EDA) Software", now redirects to [2], which does not refer to the old name. This brochure, last updated January 24, 2017, and this brochure, updated July 28, does use the old name, but not the web pages that link to them, so it appears the EEsof name is being phased out. Robert K S (talk) 23:26, 3 April 2018 (UTC)[reply]