Encoder: Difference between revisions

Revision as of 04:41, 2 May 2007

Revision as of 04:41, 2 May 2007

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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]].

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

==Examples==

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

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

* 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.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

==See also==

* [[Endec]]

* [[Line code]]

* [[Line code]]09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C009 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

* [[Modulation]]

* [[Database normalization|Redundancy in databases]]