Introduction to Encoders & Decoders Video Lecture | Analog and Digital Electronics - Electrical Engineering (EE)

Ans. An encoder is a device or circuit that converts an input signal into a coded output signal. Its purpose is to convert information from one format to another, such as converting analog signals to digital signals or translating data into a specific coding scheme.

Ans. An encoder works by taking an input signal and converting it into a coded output signal. It does this by assigning specific codes or symbols to different input values. The encoder has a set of rules or algorithms that determine how the input is encoded into the output. This process allows for the efficient transfer, storage, or processing of data.

Ans. There are various types of encoders, including: - Binary encoders: These encoders convert inputs into binary-coded output signals. - Priority encoders: They prioritize inputs and assign codes based on their priority levels. - Absolute encoders: These encoders provide a unique code for each input position or value. - Incremental encoders: They generate output signals based on changes in position or value.

Ans. Encoders have numerous applications in different fields, such as: - Communication systems: Encoders are used in digital communication systems to convert analog signals into digital signals for efficient transmission and decoding at the receiving end. - Robotics: Encoders are integral components in robotic systems for accurate positioning and control of robotic arms or joints. - Industrial automation: Encoders are used in industrial machinery to monitor and control various parameters, such as speed, position, and direction. - Automotive industry: Encoders are used in vehicles for applications like wheel speed sensors, throttle position sensors, and steering angle sensors. - Multimedia devices: Encoders are utilized in multimedia devices like DVD players, digital cameras, and audio recorders for encoding and decoding various media formats.

Ans. The main difference between an encoder and a decoder is their functionality. An encoder converts an input signal into a coded output signal, while a decoder performs the opposite function by converting a coded input signal into an output signal that matches the original input. In other words, an encoder compresses or encodes information, while a decoder decompresses or decodes the encoded information.