Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q380756> ?p ?o }
- Q380756 description "Electrical engineer".
- Q380756 description "Electrical engineer".
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- Q380756 abstract "Otto Julius Zobel (October 20, 1887 – January 1970) was an electrical engineer who worked for the American Telephone & Telegraph Company (AT&T) in the early part of the 20th century. Zobel's work on filter design was revolutionary and led, in conjunction with the work of John R. Carson, to significant commercial advances for AT&T in the field of frequency division multiplex (FDM) telephone transmissions.Although much of Zobel's work has been superseded by more modern filter designs, it remains the basis of filter theory and his papers are still referenced today. Zobel invented the m-derived filterand the constant-resistance filter, which remains in use.Zobel and Carson helped to establish the nature of noise in electric circuits, concluding that—contrary to mainstream belief—it is not even theoretically possible to filter out noise entirely and that noise will always be a limiting factor in what is possible to transmit. Thus, they anticipated the later work of Claude Shannon, who showed how the theoretical information rate of a channel is related to the noise of the channel.".
- Q380756 birthDate "1887-10-20".
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- Q380756 birthYear "1887".
- Q380756 deathDate "1970".
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- Q380756 deathYear "1970".
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