keying off

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• Keying — The word keying has a number of meanings:*Junk Keying Chinese type of ship *keying (cryptography) is the installation of key material into a device. *keying (telecommunications) is a form of modulation where the modulating signal takes one of two …   Wikipedia

• keying — I. ˈkēiŋ ē.ēŋ noun ( s) Etymology: key (I) + ing (n. suffix) : the process of turning an electronic circuit off or on either manually or automatically such keying represents the simplest possible form of modulation, and is applicable to all kinds …   Useful english dictionary

• Keying — Key Key, v. t. [imp. & p. p. {Keved}; p. pr. & vb. n. {Keying}.] 1. To fasten or secure firmly; to fasten or tighten with keys or wedges. Francis. [1913 Webster] 2. (Computers) To enter (text, data) using keys, especially those on a keyboard; to… …   The Collaborative International Dictionary of English

• Junk Keying — The Junk Keying (zh cp|c=耆英|p=qíyīng, literally Elder and Brave ; the English name is based on Cantonese pronunciation) was a three masted, 800 ton Foochow Chinese trading junk which sailed from China around the Cape of Good Hope to the United… …   Wikipedia

• On-off keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Amplitude-shift keying — (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.The amplitude of an analog carrier signal varies in accordance with the bit stream (modulating signal), keeping frequency and phase… …   Wikipedia

• On-Off Keying — Amplitudenumtastung (engl. Amplitude Shift Keying (ASK)) ist eine digitale Modulationsart. Dabei wird die Amplitude des Trägersignals verändert, um verschiedene Werte zu übertragen. Die einfachste Form der Amplitudentastung ist das sogenannte On… …   Deutsch Wikipedia

• Amplitude and phase-shift keying — or Asymmetric Phase shift keying, (APSK), is a digital modulation scheme that conveys data by changing, or modulating, both the amplitude and the phase of a reference signal (the carrier wave). In other words, it combines both Amplitude shift… …   Wikipedia

• Amplitude Shift Keying — Amplitudenumtastung (engl. Amplitude Shift Keying (ASK)) ist eine digitale Modulationsart. Dabei wird die Amplitude des Trägersignals verändert, um verschiedene Werte zu übertragen. Die einfachste Form der Amplitudentastung ist das sogenannte On… …   Deutsch Wikipedia

• Key (keying) — RadioPP Turning a sound source on or off from the console …   Audio and video glossary

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium