John Renshaw Carson
John Renshaw Carson (June 28, 1886 – October 31, 1940) was an American transmission theorist for early communications systems. He invented single-sideband modulation and developed the Carson bandwidth rule for estimating frequency modulation (FM) bandwidth. In 2013 Carson was inducted into the Electronic Design Hall of Fame for his contributions to communications.[1]
Biography
Charles Steinmetz is at center, in light-colored suit.[2]
Carson was born in
American Telephone & Telegraph (AT&T), and in 1914 left the university.[3]
At AT&T, Carson was involved in early
Bell System Technical Journal
, culminating in his 1926 book Electrical Circuit Theory and Operational Calculus.
From 1925 to 1940 Carson worked for
George C. Southworth's 1932 waveguide
experiments.
Carson received the 1924
Brooklyn Polytechnic Institute in 1937, and the 1939 Elliott Cresson Medal from the Franklin Institute. His undergraduate letters are archived at Princeton University
.
Patent
- U.S. patent 1,449,382 : John Carson/AT&T: "Method and Means for Signaling with High Frequency Waves" filed on December 1, 1915; granted on March 27, 1923
Selected works
- 1921: "Wave Propagation over Parallel Wires: The Proximity effect", Philosophical Magazine, volume IXLI, pages 607–633.
- 1922: "Notes on the Theory of Modulation", Proceedings of the Institute of Radio Engineers, volume 10, issue 1, pages 57–64.
- 1924: A Generalization of Reciprocal Theorem, Bell System Technical Journal3: 393–399.
- 1925: Selective Circuits and Static Interference, Bell System Technical Journal, 4:265.
- 1926: Wave Propagation in Overhead Wires with Ground Return, Bell System Technical Journal, 5: 539.
- 1926: Electrical Circuit Theory and Operational Calculus, New York : McGraw–Hill.
- 1926: The Heaviside Operational Calculus, Bulletin of the American Mathematical Society 32(1):43–68, link from Project Euclid.
- 1936: (with S. P. Mead and S. A. Schelkunoff) Hyper-Frequency Waveguides: Mathematical Theory, Bell System Technical Journal 15: 310–333.
See also
References
- ^ Frenzel, Lou. "John Renshaw Carson: Pioneer Ruled Modulation's Earliest Innovations". Electronic Design. Retrieved 9 November 2018.
- ^ "Einstein and Steinmetz with group". New York Heritage Digital Collections. Retrieved 9 November 2018.
- ^ Frenzel, Lou. "John Renshaw Carson: Pioneer Ruled Modulation's Earliest Innovations". Electronic Design. Retrieved 9 November 2018.
- ^ US 1449382 John Carson/AT&T: "Method and Means for Signaling with High Frequency Waves" filed on December 1, 1915; granted on March 27, 1923
Sources
- John & Robb Carson Letters in Mudd Manuscript Library of Princeton University Library Archives.
- Brittain, J.E., "John R. Carson and the conservation of radio spectrum", Proceedings of the IEEE, volume 84, issue 6, June 1996, pages 909–910.
- Mario Lucertini, Ana Millán Gasca, F. Nicolò, Technological Concepts and Mathematical Models in the Evolution of Modern Engineering Systems, Birkhäuser, 2004, pages 114–117. ISBN 3-7643-6940-X.
- Julie K. Petersen, Fiber Optics Illustrated Dictionary, CRC Press, 2003, page 264. ISBN 0-8493-1349-X.
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