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Data communication, including data transmission and data reception, ... Ralph Hartley, Claude Shannon and others during the early 20th century, ...
Hartley's 1928 paper, called simply "Transmission of Information", went further by using the word information (in a technical sense), and making explicitly clear that information in this context was a measurable quantity, reflecting only the receiver's ability to distinguish that one sequence of symbols had been intended by the sender rather ...
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.
Ralph Hartley's 1928 paper, Transmission of Information, uses the word information as a measurable quantity, reflecting the receiver's ability to distinguish one sequence of symbols from any other, thus quantifying information as H = log S n = n log S, where S was the number of possible symbols, and n the number of symbols in a transmission ...
In information theory, the Shannon–Hartley theorem tells the maximum rate at which information can be transmitted over a communications channel of a specified bandwidth in the presence of noise. It is an application of the noisy-channel coding theorem to the archetypal case of a continuous-time analog communications channel subject to ...
Hartley County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,382. [1] The county seat is Channing. [2] The county was created in 1876 and later organized in 1891. [3] It is named for Oliver C. Hartley and his brother, Rufus K. Hartley, two early Texas legislators and lawyers.
1949 – Claude E. Shannon publishes Communication in the Presence of Noise – Nyquist–Shannon sampling theorem and Shannon–Hartley law; 1949 – Claude E. Shannon's Communication Theory of Secrecy Systems is declassified; 1949 – Robert M. Fano publishes Transmission of Information. M.I.T. Press, Cambridge, Massachusetts – Shannon ...
Channing is situated at the junction of U.S. Highway 385, State Highway 354, and FM 767 in southeastern Hartley County, approximately 30 miles south of Dalhart. [9] According to the United States Census Bureau , the city has a total area of 0.3 sq mi (2.6 km 2 ), all land.