Ralph Hartley | |
|---|---|
 | |
| Born | November 30, 1888 Sprucemont, Nevada, U.S. |
| Died | May 1, 1970 (aged 81) Summit, New Jersey, U.S. |
| Nationality | American |
| Alma mater | University of Utah Oxford University |
| Known for | Hartley function Hartley modulator Hartley oscillator Hartley transform Shannon–Hartley theorem |
| Awards | IEEE Medal of Honor (1946) |
| Scientific career | |
| Fields | Electrical engineering |
Ralph Vinton Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform, and contributed to the foundations of information theory.
His legacy includes the naming of the hartley, a unit of information equal to one decimal digit, after him.