Encoder vs Decoder
ENCODER |
DECODER |
---|---|
Encoder circuit basically converts the applied information signal into a coded digital bit stream. |
Decoder performs reverse operation and recovers the original information signal from the coded bits. |
In case of encoder, the applied signal is the active signal input. |
Decoder accepts coded binary data as its input. |
The number of inputs accepted by an encoder is 2n. |
The number of input accepted by decoder is only n inputs. |
The output lines for an encoder is n. |
The output lines of an decoder is 2n. |
The encoder generates coded data bits as its output. |
The decoder generates an active output signal in response to the coded data bits. |
The operation performed is simple. |
The operation performed is complex. |
The encoder circuit is installed at the transmitting end. |
The decoder circuit is installed at the receiving side. |
OR gate is the basic logic element used in it. |
AND gate along with NOT gate is the basic logic element used in it. |
It is used in E-mail, video encoders etc. |
It is used in Microprocessors, memory chips etc. |
Difference Between Encoder and Decoder
Combinational Logic is the concept in which two or more input states define one or more output states. The Encoder and Decoder are combinational logic circuits. In which we implement combinational logic with the help of boolean algebra.
To encode something is to convert an unambiguous piece of information into a form of code that is not so clearly understood and the device which performs this operation is termed ad Encoder.