Encoder

encodingencodersencodedencodeEncodesaltitude encoderdigitally encodedElectronic encodingencode-decodelinear optical encoder
An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purpose of standardization, speed or compression.wikipedia
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Codec

codecsdecoderdecoders
A codec is a device or computer program for encoding or decoding a digital data stream or signal.

Code

encodingencodedencode
An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purpose of standardization, speed or compression. * A device used to change a signal (such as a bitstream) or data into a code.

Encoder (digital)

simple encoder
A simple encoder or simply an encoder in digital electronics is a one-hot to binary converter.

Transcoding

transcodetranscodertranscodes
Transcoding is the direct digital-to-digital conversion of one encoding to another, such as for movie data files, audio files (e.g., MP3, WAV), or character encoding (e.g., UTF-8, ISO/IEC 8859).

Priority encoder

Encoderpriority encoded
An example of a single bit 4 to 2 encoder is shown, where highest-priority inputs are to the left and "x" indicates an irrelevant value - i.e. any input value there yields the same output since it is superseded by higher-priority input.

Comparison of video codecs

Comparison of video encodersvideo

Incremental encoder

quadrature encoderincremental encoder interfaceQuadrature decoder

Integrated circuit

integrated circuitsmicrochipchip
* A device used to change a signal (such as a bitstream) or data into a code.

Signaling (telecommunications)

signalsignalingout-of-band signaling
* A device used to change a signal (such as a bitstream) or data into a code.

Bitstream

bit streambyte streambinary sequence
* A device used to change a signal (such as a bitstream) or data into a code.

Data

statistical datascientific datadatum
* A device used to change a signal (such as a bitstream) or data into a code.