• Thumbnail for Ralph Hartley
    Ralph Vinton Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley...
    13 KB (1,536 words) - 03:01, 24 January 2024
  • circuit was invented in 1915 by American engineer Ralph Hartley. The distinguishing feature of the Hartley oscillator is that the tuned circuit consists of...
    11 KB (1,485 words) - 17:05, 28 February 2024
  • spectral density. The law is named after Claude Shannon and Ralph Hartley. The Shannon–Hartley theorem states the channel capacity C {\displaystyle C} ,...
    21 KB (3,073 words) - 21:58, 25 April 2024
  • a priori equiprobability of each possible value. It is named after Ralph Hartley. If base 2 logarithms and powers of 2 are used instead, then the unit...
    9 KB (904 words) - 02:29, 16 October 2023
  • The Hartley function is a measure of uncertainty, introduced by Ralph Hartley in 1928. If a sample from a finite set A uniformly at random is picked,...
    4 KB (787 words) - 19:22, 25 May 2023
  • field was originally established by the works of Harry Nyquist and Ralph Hartley, in the 1920s, and Claude Shannon in the 1940s.: vii  The field, in...
    54 KB (7,088 words) - 21:54, 28 April 2024
  • 1870s are similar to the information entropy by Claude Shannon and Ralph Hartley, developed in the 1940s. The defining expression for entropy in the...
    29 KB (3,687 words) - 15:41, 26 April 2024
  • Thumbnail for Hartley Sawyer
    Hartley Sawyer (born January 25, 1985) is an American actor. He is known for his roles as Kyle Abbott on the CBS Daytime soap opera The Young and the...
    17 KB (1,009 words) - 17:21, 28 February 2024
  • and was based in part on earlier work and ideas of Harry Nyquist and Ralph Hartley. The Shannon limit or Shannon capacity of a communication channel refers...
    16 KB (2,780 words) - 15:22, 18 January 2024
  • communications machines such as teletypes and stock ticker machines (1870). Ralph Hartley suggested the use of a logarithmic measure of information in 1928. Claude...
    26 KB (3,088 words) - 03:06, 23 April 2024
  • Thumbnail for Information
    field was fundamentally established by the works of Harry Nyquist and Ralph Hartley in the 1920s, and Claude Shannon in the 1940s. The field is at the intersection...
    43 KB (5,087 words) - 14:41, 4 April 2024
  • Ralph Hartley Wetmore (April 27, 1892 – April 28, 1989) was a professor of botany at Harvard University from 1926 until 1962, known for his studies of...
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  • work in data transmission and information theory by Harry Nyquist, Ralph Hartley, Claude Shannon and others during the early 20th century, was done with...
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  • Thumbnail for Bell Labs
    on earlier work in the field by Bell researchers Harry Nyquist and Ralph Hartley, but it greatly extended these. Bell Labs also introduced a series of...
    151 KB (12,791 words) - 06:12, 27 April 2024
  • entropy, extending the Gibbs entropy to quantum mechanics 1928 – Ralph Hartley introduces Hartley information as the logarithm of the number of possible messages...
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  • transform by Ralph V. L. Hartley in 1942, and is one of many known Fourier-related transforms. Compared to the Fourier transform, the Hartley transform has...
    9 KB (1,280 words) - 02:21, 27 September 2023
  • Harrington Computational electromagnetics, method of moments (MoM) Ralph Hartley Electronics Caroline Haslett Founder of The Woman Engineer Oliver Heaviside...
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  • States Secretary of Veterans Affairs Ralph Hartley, A.B. 1909, invented the Hartley oscillator and the Hartley transform, recipient of the IEEE Medal...
    112 KB (10,103 words) - 16:52, 27 April 2024
  • Thumbnail for Jane D. Hartley
    Elizabeth II as her coffin lay in state. Hartley is married to investment banker and former Evercore Partners CEO Ralph Schlosstein. They have two children...
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  • 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...
    13 KB (1,660 words) - 01:49, 26 April 2024
  • information: 1 Sh ≈ 0.693 nat ≈ 0.301 Hart. The hartley, a seldom-used unit, is named after Ralph Hartley, an electronics engineer interested in the capacity...
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  • or the newer IEC binary prefixes (power-of-two prefixes). In 1928, Ralph Hartley observed a fundamental storage principle, which was further formalized...
    37 KB (3,068 words) - 02:36, 16 April 2024
  • Elongated Man (redirect from Ralph Dibny)
    CW's live-action Arrowverse television series The Flash, portrayed by Hartley Sawyer. Elongated Man was created by writer John Broome and penciler Carmine...
    28 KB (3,537 words) - 12:39, 14 April 2024
  • Hartley is a surname. Notable people with the surname include: Adele Hartley, Edinburgh film festival organiser Aidan Hartley (born 1965), British journalist...
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  • Thumbnail for History of the Internet
    in telecommunications technology was developed by Harry Nyquist and Ralph Hartley in the 1920s. Information theory, as enunciated by Claude Shannon in...
    191 KB (21,479 words) - 10:19, 29 April 2024
  • April 30 – Inger Stevens, Swedish-American actress (b. 1934) May 1 Ralph Hartley, American inventor (b. 1888) Yi Un, Crown Prince of Korea (b. 1897)...
    90 KB (8,758 words) - 01:39, 20 April 2024
  • Thumbnail for IEEE Medal of Honor
    his devotion to the affairs of the Institute of Radio Engineers. 1946 Ralph Hartley For his early work on oscillating circuits employing triode tubes and...
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  • the same relations. John Manley and Harrison Rowe were protégés of Ralph Hartley at Bell Laboratories. The work with nonlinear reactances (inductors...
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  • intelligence." Hartley's law is a way to quantify information and its line rate in an analog communications channel. Named for Ralph Hartley (1888–1970)...
    76 KB (10,123 words) - 09:02, 29 April 2024
  • Thumbnail for Marsden Hartley
    transcendentalists Henry David Thoreau and Ralph Waldo Emerson, inspired Hartley to view art as a spiritual quest. From 1900 to 1910, Hartley spent his summers in Lewiston...
    24 KB (2,667 words) - 00:49, 8 April 2024