Pulse Code Modulation - Understanding Digital Transmission

AI Thread Summary
Pulse Code Modulation (PCM) is primarily a technique for converting analog signals into digital format, which involves sampling the analog signal and quantizing it into discrete values. In the context of a computer keyboard, PCM is not typically used since keyboards inherently transmit data in digital format. The discussion highlights that PCM is more relevant for devices like analog joysticks or touchpads that require conversion from analog to digital. The original question about applying PCM concepts to a digital keyboard may stem from a misunderstanding of how digital devices communicate. Overall, PCM is not applicable for digital keyboards, as they operate using digital signals directly.
jeejou
Messages
10
Reaction score
0
Hi everyone:smile:,

This is my question:
" Describe the concepts of PCM (Pulse Code Modulation) in a computer keyboard which its data are in digital format."


This is my justification:
How to describe the concepts of PCM ? Isn't PCM a technique used to transmit analog signals in digital transmission ? I mean, PCM converts the analog signals into digital pulses and then reconvert them back into its original form (analog) at the receiver of a system. So, can somebody please give me some clues to answer the question. :biggrin:

Thanks in advance.
 
Physics news on Phys.org
You're right there is no sense in using PCM to talk between a digital keyboard and a computer.
It might make sense for receiving data from something like an analog joystick or touchpad, are you sure you read the question correctly?
 
The question is correctly printed.

Describe the concepts of PCM (Pulse Code Modulation) in a computer keyboard which its data are in digital format.
 

Similar threads

Modulation & demodulation of GPS output digital data
Replies
10
Views
1K
Digital Transmission and Twisted Wires
Replies
6
Views
2K
Signals Description (Digital, Analog, Discrete-time, etc)
Replies
9
Views
2K
Frame Synchronisation via Modified Approach to Bit Insertion
Replies
2
Views
2K
GNURadio -- Beginner's questions
Replies
0
Views
2K
How Do You Get From 1's and 0's to complex software and digital info?
Replies
10
Views
5K
Baseband Signal Processing and Digital to Analog Converters
Replies
2
Views
2K
I could really use some help picking my optional module [GameDev]
Replies
2
Views
2K
Understand the concept of bandwidth
Replies
24
Views
3K
How Do Wireless Digital Transmissions Work and What Affects Their Quality?
Replies
3
Views
3K

Hot Threads

Recent Insights

Back
Top