this ppt gives about encoder and decoder details

1. EASWARI ENGINEERING COLLEGE
(AUTONOMOUS)
CHENNAI - 89
GROUP PRESENTATION
Subject : Digital Electronics (191ECS301T)
Group no : 7
Date : 28-12-2023
GROUP MEMBERS:
310622106139 Shasheenth A
310622106159 Subaash Rahul M S
310622106171 Udhaya Kumar S
310622106178 Vasu V S
310622106179 Vijaya Kumar N K
310622106181 Vishal S
Encoder, Decoder and its Applications
1

2. Introduction
Encoders and decoders play a crucial role in various technological
systems, enabling efficient data processing and communication.
1. What is Encoder
2. Octal to Binary Encoder
3. Applications of Encoder
4. What is Decoder and Binary Decoder
5. Applications of Decoder
6. Seven- Segment Display
7. Real Time Applications of Encoder and Decoder

3. What is an Encoder?
An encoder is a combinational circuit that converts binary information in
the form of a 2N input lines into N output lines, which represent N bit
code for the input. For simple encoders, it is assumed that only one
input line is active at a time

4. Example Octal to Binary encoder
Implementation

5. Priority Encoder
A priority encoder is an encoder circuit in which
inputs are given priorities.
When more than one inputs are active at the
same time, the input with higher priority takes
precedence and the output corresponding to that is
generated.
4 to 2 priority encoder
Implementation
It can clearly be seen that the condition for valid bit to be 1 is that at
least any one of the inputs should be high.
V = D0 + D1 + D2 + D3

7. Applications of Encoder
1 Remote Control
System
Encoders play a crucial
role in remote controls for
devices such as TVs, air
conditioners, and garage
doors, converting user
inputs into coded signals.
2 Digital communication
system
In telecommunications,
encoders are used to
convert analog signals
into digital signals for
transmission over
communication channels.
3 Digital Sensors
Encoders are integrated into
digital sensors for applications
like motion sensing, enabling
accurate measurement of
movement in devices such as
gaming controllers and virtual
reality systems.

8. Decoder:
A decoder does the opposite job of an
encoder. It is a combinational circuit that
converts n lines of input into 2n lines of output.

9. Applications of Decoders
1 Digital Displays (7-
Segment Displays)
Decoders are vital in
driving seven-segment
displays, enabling the
representation of various
characters and numbers.
2 Memory Systems
In memory systems,
decoders assist in
addressing memory
locations and accessing
data stored in different
memory cells.
3 Error Detection and
Correction
Decoders play a crucial
role in error detection and
correction mechanisms,
ensuring data integrity and
reliability.

10. Application of Decoder
HOW 7 SEGMENT DISPLAY WORKS?

11. For a For d
For c
For b
For g
For f
For e

12. Logic Circuit

13. 1.Button Press Encoding
1.Code Assignment
2.Serial Transmission
3.Infrared (IR) Transmission
4.Remote Control Protocols
5.Transmission Repeatability
6.Receiver Decoding
REAL TIME APPLICATIONS OF ENCODER AND
DECODER
1.REMOTE CONTROL SYSTEM

14. MEMORY STORAGE SYSTEM
Memory
Address
Decoding
Row and
Column
Selection in
RAM
Memory
Interfacing in
Microcontrollers
Memory
Banking
Flash Memory
Addressing
Chip Select
Decoding

15. Summary: Real-Time Apps of Encoders
& Decoders
Encoders and decoders find diverse
applications in various real-time
scenarios, enabling efficient and accurate
data processing.
Emphasis: Significance Across Diverse
Fields
From communication systems to robotics
and healthcare, encoders and decoders
play a vital role in numerous industries.
CONCLUSION

16. THANK YOU