Encoder: Difference between revisions

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'''Encoder''' may refer to: In this process, we represent the input data meaningfully, which helps someone else to interpret it.

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An '''encoder''' is a [[device]] used to change a [[Signalling (telecommunication)|signal]] (such as a [[bitstream]]) or [[data]] into a [[code]]. The code may serve any of a number of purposes such as compressing information for [[transmission (telecommunications)|transmission]] or [[Computer storage|storage]], [[encrypting]] or adding [[Redundancy (information theory)|redundancies]] to the input code, or 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]] encoding is done with [[analog circuit|analog circuitry]].

==Electronic circuits==

==Examples==

* [[Audio encoder]], converts digital audio to analog audio signals

* A [[data compression|compressor]] is used to encode data into a smaller form.

* [[Video encoder]], converts digital video to analog video signals

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

* A [[rotarySimple encoder]], isassigns a sensor,binary transducer for converting rotary motion or positioncode to a codean ofactive electronicinput pulses.line

* [[Priority encoder]], outputs a binary code representing the highest-priority active input

* A '''linear encoder''' is a sensor, transducer or readhead paired with a scale that encodes position. The sensor reads the scale in order to convert the encoded position into an analog or [[digital signal]], which can then be decoded into position by a digital readout (DRO). Motion can be determined by change in position over time. Linear encoder technologies include capacitive, inductive, [[eddy current]], magnetic, and optical. Optical technologies include shadow, self imaging and interferometric. Linear encoders are used in metrology instruments and high precision machining tools ranging from digital calipers to coordinate measuring machines.

* [[8b/10b encoding|8b/10b encoder]], creates DC balance on a communication transmission line

==SeeMedia alsocompression==

* A [[data compression|compressorCompressor]], isencodes useddata to(e.g., encode dataaudio/video/images) into a smaller form. (see [[codec]])

* [[Endec]]

* [[Line code]]

* [[Modulation]]

* [[Database normalization|Redundancy in databases]]

* [[decoder]]

==External linksSensors ==

* [[it:Encoder (circuitoposition)]]

*[http://www.asic-world.com/digital/combo3.html asic-world's Digital Combinational Logic (part III)] - an overview of encoders in circuitry.

** [[Rotary encoder]], converts rotary position to electronic signals

** [[Linear encoder]], converts linear position to electronic signals

** [[Absolute encoder]], outputs the absolute position

** [[Incremental encoder]], converts position changes to electronic signals in real time

* [[Altitude encoder]]

==See also==

[[Category:Electronics]]

* [[Decoder (disambiguation)]]

[[Category:Telecommunications]]

* [[Encode (disambiguation)]]

{{disambiguation}}

[[de:Encoder]]

[[es:Codificador]]

[[id:Encoder]]

[[it:Encoder (circuito)]]

[[nl:Encoder]]

[[fi:Enkooderi]]