Encoder: Difference between revisions

Revision as of 04:48, 27 March 2006

Revision as of 07:45, 27 March 2006

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[[Image:Encoder_Example.svg|thumb|right|Example: A Single Bit 4-to-2 Line Encoder]]

[[Image:Encoder_Example.svg|thumb|right|Example: A Single Bit 4-to-2 Line Encoder]]An '''encoder''' is a [[device]] used to encode a [[Signalling (telecommunication)|signal]] (such as a [[bitstream]]) or [[data]] into a form that is acceptable for [[transmission (telecommunications)|transmission]] or [[Computer storage|storage]]. This is usually done by means of a programmed [[algorithm]], especially if any part is [[digital]], while most [[analog (signal)|analog]]ue encoding is done with [[analog circuit]]ry.

[[Image:Encoder_Example.svg|thumb|right|Example: A Single Bit 4-to-2 Line Encoder]]An '''encoder''' is a [[device]] used to encodechange a [[Signalling (telecommunication)|signal]] (such as a [[bitstream]]) or [[data]] into a form[[code]]. thatThe iscode may serve any of a number of purposes such as compressing acceptableinformation for [[transmission (telecommunications)|transmission]] or [[Computer storage|storage]], [[encrypting]] or adding [[Redundancy_(information_theory)|redundancies]] to the input code. translating from one code to another. This is usually done by means of a programmed [[algorithm]], especially if any part is [[digital]], while most [[analog (signal)|analog]]ue encoding is done with [[analog circuit|analog circuitry]]ry.

For example, a [[rotary encoder]] is a sensor or transducer for converting rotary motion or position to a code of electronic pulses.

Examples:

For example,* a [[rotary encoder]] is a sensor or transducer for converting rotary motion or position to a code of electronic pulses.

* a [[multiplexer]] combines multiple inputs into one output.

* a [[Data_compression|Compressor]] is used to encode data into a smaller form.

==See also==

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*[[line code]]

*[[modulation]]

*[[Database_normalization|Redundancy in databases]]

==External links==