编码器和解码器的区别

组合逻辑是两个或多个输入状态定义一个或多个输出状态的概念。编码器和解码器是组合逻辑电路。我们在布尔代数的帮助下实现组合逻辑。

对某些东西进行编码是将一条明确的信息转换为一种不太清楚的代码形式，执行此操作的设备称为广告编码器。

1. 编码器：
编码器是将活动数据信号转换为编码信息格式的设备，或者是将模拟信号转换为数字信号的设备。它是一个组合电路，将 2N 条输入线形式的二进制信息转换为 N 条输出线，代表输入的 N 位代码。当输入信号施加到编码器时，其中涉及的逻辑电路将该特定输入转换为编码的二进制输出。

解码是执行相反的操作：将代码转换回明确的形式代码，执行此操作的设备称为解码器。

2.解码器：
解码器也是作为编码器的组合电路，但其操作与编码器完全相反。解码器是一种设备，它从编码的输入信号中生成原始信号作为输出，并将 n 行输入转换为 2n 行输出。与门可用作基本解码元件，因为它仅在所有输入均为高电平时才产生高电平输出。

编码器和解码器的区别：

S.No.	ENCODER	DECODER
1	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.
2	In case of encoder, the applied signal is the active signal input.	Decoder accepts coded binary data as its input.
3	The number of inputs accepted by an encoder is 2n.	The number of input accepted by decoder is only n inputs.
4	The output lines for an encoder is n.	The output lines of an decoder is 2n.
5	The encoder generates coded data bits as its output.	The decoder generates an active output signal in response to the coded data bits.
6	The operation performed is simple.	The operation performed is complex.
7	The encoder circuit is installed at the transmitting end.	The decoder circuit is installed at the receiving side.
8	OR gate is the basic logic element used in it.	AND gate along with NOT gate is the basic logic element used in it.
9	It is used in E-mail, video encoders etc.	It is used in Microprocessors, memory chips etc.