Secráfono

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·         Cifrado analógico de voz

Secráfono (scrambler)

Equipo para realizar el cifrado analógico de la voz. [Ribagorda:1997]

Secrafonía (scrambling)

Es término sinónimo de: Cifrado analógico de la voz. [Ribagorda:1997]

Secráfono o scrambler

Equipo de cifra que realiza un cifrado analógico de la voz. (v. Criptófono). [CESID:1997]

(en) Scrambler

In telecommunications, a scrambler is a device that transposes or inverts signals or otherwise encodes a message at the transmitter to make the message unintelligible at a receiver not equipped with an appropriately set descrambling device. Whereas encryption usually refers to operations carried out in the digital domain, scrambling usually refers to operations carried out in the analog domain. Scrambling is accomplished by the addition of components to the original signal or the changing of some important component of the original signal in order to make extraction of the original signal difficult. Examples of the latter might include removing or changing vertical or horizontal sync pulses in television signals; televisions will not be able to display a picture from such a signal. Some modern scramblers are actually encryption devices, the name remaining due to the similarities in use, as opposed to internal operation.

http://en.wikipedia.org/wiki/Scrambler

(en) scrambler

A device that transposes or inverts signals or otherwise encodes a message at the transmitter to make the message unintelligible at a receiver not equipped with an appropriately set descrambling device. Note: Scramblers usually use a fixed algorithm or mechanism. However, a scrambler provides communications privacy that is inadequate for classified traffic.

http://www.atis.org/tg2k/_scrambler.html

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