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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.
Feb 24, 2016 · Ralph V. L. Hartley inventor of the electronic oscillator circuit that bears his name, was born in Spruce, Nevada, on 30 November 1888. He graduated with the A.B. degree from the University of Utah in 1909.
Ralph Hartley graduated from University of Utah and went to Oxford in 1910 as one of the first Rhodes scholars, the same year as Elmer Davis and Edwin Hubble. He returned to the US to work for Western Electric, the manufacturing arm of the Bell Telephone Company.
Ralph Hartley is a Research Associate Professor, currently focusing on an exploratory investigation of rock cairns in alpine settings of southeast Alaska, supported by the National Science Foundation.
The most direct antecedents of Shannon's work were two papers published in the 1920s by Harry Nyquist and Ralph Hartley, who were both still research leaders at Bell Labs when Shannon arrived in the early 1940s.
Feb 18, 2017 · Department of Anthropology. University of Nebraska-Lincoln. Adjunct Professor Ralph Hartley has been in the field of anthropology for forty years, beginning his career as an assistant for the Department of Anthropology at the University of Nebraska-Lincoln.
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The Shannon–Hartley theorem establishes what that channel capacity is for a finite-bandwidth continuous-time channel subject to Gaussian noise.
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