Ralph Hartley
Ralph Vinton Lyon Hartley (born November 30, 1888 in Spruce , Elko County , Nevada, † May 1, 1970 in Summit , New Jersey) was an American electrical engineer and co-founder of information theory .
Hartley studied at the University of Utah and Oxford University .
After returning to the United States, he was employed at the Western Electric Company's research laboratory. He later worked at Bell Labs until 1950 .
For his research in the field of information theory and oscillator circuits , he received the IRE Medal of Honor from the Institute of Radio Engineers (IRE), a forerunner organization of the IEEE .
Units, circuits, laws named after Ralph Hartley include:
- Hartley (unit) , a unit of measure for the amount of data.
- Shannon-Hartley law , describes the theoretical upper limit of the bit rate of a transmission channel.
- Hartley circuit , an electrical three-point oscillator circuit for generating vibrations.
- Hartley transform , an integral transform related to the Fourier transform.
Works
- Hartley, RVL, "Transmission of Information", Bell System Technical Journal, July 1928, p.535.
- Hartley, RVL, "A More Symmetrical Fourier Analysis Applied to Transmission Problems," Proc. IRE 30, 144-150 (1942).
- Hartley, RVL, "A New System of Logarithmic Units," Proceedings of the IRE, January 1955, Vol. 43, no. 1.
- Hartley, RVL, "Information Theory of The Fourier Analysis and Wave Mechanics," August 10, 1955 (publication location unknown)
- Hartley, RVL, "The Mechanism of Gravitation," January 11, 1956 (publication location unknown)
Web links
| personal data | |
|---|---|
| SURNAME | Hartley, Ralph |
| ALTERNATIVE NAMES | Hartley, Ralph Vinton Lyon (full name) |
| BRIEF DESCRIPTION | American electrical engineer and co-founder of information theory |
| DATE OF BIRTH | November 30, 1888 |
| PLACE OF BIRTH | Spruce , Nevada , USA |
| DATE OF DEATH | May 1, 1970 |
| Place of death | Summit (New Jersey) , New Jersey , USA |