24 Dec
2008
24 Dec
'08
12:46 a.m.
Chuck Guzis wrote:
On 23 Dec 2008 at 22:20, Jim Battle wrote:
http://taracom.net/chip.pl?to=management
John Kardash, Sr. Scientist
M.S. EE, Temple University
Over 30 years of experience in IC design and management. Inventor of JK flip flop.
Developed many analog and digital integrated circuits for disk drive market. Holds 17
patents on digital and analog circuits and one patent on phone detection system. John was
key designer of the Suhl (Sylvania high logic), which became the Industry TTL line. He has
also designed many production worthy circuits for Automotive, Telephone, Disk Drive, and
Communication markets.
John Kardash invented the JK flip flop. At
least, that is what the prof said back in 1982
when I was at school.
From Wikipedia:
The origin of the name for the JK flip-flop is detailed by P. L.
Lindley, a JPL engineer, in a letter to EDN, an electronics design
magazine. The letter is dated June 13, 1968, and was published in the
August edition of the newsletter. In the letter, Mr. Lindley explains
that he heard the story of the JK flip-flop from Dr. Eldred Nelson,
who is responsible for coining the term while working at Hughes
Aircraft. Flip-flops in use at Hughes at the time were all of the
type that came to be known as J-K. In designing a logical system, Dr.
Nelson assigned letters to flip-flop inputs as follows: #1: A & B,
#2: C & D, #3: E & F, #4: G & H, #5: J & K.
Another theory holds that the set and reset inputs were given the
symbols "J" and "K" after one of the engineers that helped design the
J-K flip-flop, Jack Kilby.