Encoder may refer to:
Electronic circuits
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Audio encoder
An audio codec is a device or computer program capable of encoding or decoding a digital data stream (a codec) that encodes or decodes audio. In software, an audio codec is a computer program implementing an algorithm that compresses and decompres ...
, converts digital audio to analog audio signals
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Video encoder
A video decoder is an electronic circuit, often contained within a single integrated circuit chip, that converts base-band analog video signals to digital video. Video decoders commonly allow programmable control over video characteristics such as ...
, converts digital video to analog video signals
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Simple encoder
An encoder (or "simple encoder") in digital electronics is a one-hot to binary converter. That is, if there are 2''n'' input lines, and at most only one of them will ever be high, the binary code of this 'hot' line is produced on the ''n''-bit ou ...
, assigns a binary code to an active input line
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Priority encoder, outputs a binary code representing the highest-priority active input
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8b/10b encoder, creates DC balance on a communication transmission line
Media compression
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Compressor, encodes data (e.g., audio/video/images) into a smaller form (see
codec
A codec is a device or computer program that encodes or decodes a data stream or signal. ''Codec'' is a portmanteau of coder/decoder.
In electronic communications, an endec is a device that acts as both an encoder and a decoder on a signal or ...
)
Sensors
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Encoder (position) An encoder is a sensor which turns a position into an electronic signal.
There are two forms:
* Absolute encoders give an absolute position value.
* Incremental encoders count movement rather than position. With detection of a datum position and ...
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Rotary encoder
A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals.
There are two main types of rotary encoder: absolute and increm ...
, converts rotary position to electronic signals
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Linear encoder
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 di ...
, converts linear position to electronic signals
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Absolute encoder
A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals.
There are two main types of rotary encoder: absolute and increm ...
**
Incremental encoder
An incremental encoder is a linear or rotary electromechanical device that has two output signals, ''A'' and ''B'', which issue pulses when the device is moved. Together, the ''A'' and ''B'' signals indicate both the occurrence of and direction ...
, converts position changes to electronic signals in real time
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Altitude encoder
See also
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Decoder (disambiguation)
Decoder may refer to:
Technology
* Audio decoder converts digital audio to analog form
* Binary decoder, digital circuits such as 1-of-N and seven-segment decoders
* Decompress (compression decoder), converts compressed data (e.g., audio/video/im ...
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Encode (disambiguation)
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