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The following constitutes a revision of IEEE No.170 (53 IRE ll.Sl), "Standards on Modulation Systems: Definitions of Terms, 1953." It is not intended to cover the subject matter of Information Theory which is contained in IEEE No.171 (58 IRE ll.Sl ), IRE Standards on Information Theory: Definitions of Terms, 1958.Nevertheless, a few borderline terms, such as Coding and Nyquist Rate, have been included in the list. This merely reflects the fact that the two Standards define terms in adjoining areas of subject matter.The definitions given in this Standard are intended to reflect the latest usage and also toimprove the clarity and precision. Terms such as Capture Effect have been newly added, whileterms no longer in use, such as Two-Source Frequency Keying, have been deleted.

Modulation (Electronics) --- Terminology --- Standards.

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Coding theory --- Pulse modulation (Electronics) --- Signal processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication) --- Modulation (Electronics) --- Pulse techniques (Electronics) --- Telecommunication --- Data compression (Telecommunication) --- Digital electronics --- Information theory --- Machine theory --- Computer programming --- Coding theory. --- Signal processing. --- Pulse modulation (Electronics). --- Télécommunications

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Radio frequency --- Radio frequency modulation --- FM radio --- Frequency modulation, Radio --- Angle modulation --- Modulation (Electronics)

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"The commonly accepted history of FM radio is one of the twentieth century's iconic sagas of invention, heroism, and tragedy. Edwin Howard Armstrong created a system of wideband frequency-modulation radio in 1933. The Radio Corporation of America (RCA), convinced that Armstrong's system threatened its AM empire, failed to develop the new technology and refused to pay Armstrong royalties. Armstrong sued the company at great personal cost. He died despondent, exhausted, and broke." "But this account, according to Gary L. Frost, ignores the contributions of scores of other individuals who were involved in the decades-long struggle to realize the potential of FM radio. The first scholar to fully examine recently uncovered evidence from the Armstrong v. RCA lawsuit, Frost offers a thorough revision of the FM story." "Frost's balanced, contextualized approach provides a much-needed corrective to previous accounts. Navigating deftly through the details of a complicated story, he examines the motivations and interactions of the three communities most intimately involved in the development of the technology - Progressive-era amateur radio operators, RCA and Westinghouse engineers, and early FM broadcasters. In the process, Frost demonstrates the tension between competition and collaboration that goes hand in hand with the emergence and refinement of new technologies." "Frost's study reconsiders both the social construction of FM radio and the process of technological evolution. Historians of technology, communication, and media will welcome this important reexamination of the canonic story of early FM radio."--Jacket.

Radio frequency modulation --- Transmitters and transmission --- History. --- FM radio --- Frequency modulation, Radio --- Angle modulation --- Modulation (Electronics) --- Geschichte 1913-1940

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Der Band lotet Perspektiven einer rekonstruktiv-sinnverstehenden Forschung für die Untersuchung von Schule und Unterricht im digitalen Wandel aus. Es werden vier empirische Studien vorgestellt und ihre Befunde theoretisch und methodisch eingeordnet. Die Studien interessieren sich für die Veränderungen wie auch die Stabilität von Praktiken im Unterricht, wenn digitale Medien genutzt werden. Und sie untersuchen, wie Schüler:innen und Lehrkräfte die mit der Digitalisierung einhergehenden Transformationsprozesse deuten. Die generierten Forschungsperspektiven werden durch die Diskussion der Erträge der Studien im Hinblick auf zentrale Fragen des digitalen Wandels und seine Erforschung am Ende des Bandes vertiefend konturiert.

Digital media. --- Digital modulation. --- Media literacy. --- Mass media literacy --- Information literacy --- Digital communications --- Modulation (Electronics) --- Electronic media --- New media (Digital media) --- Mass media --- Online journalism