All Questions
Tagged with data digital-communications
10
questions
18
votes
8
answers
3k
views
Data transmission protocol with two lines and no explicit clock
Are there communication protocols that transmit bits using two lines A and B as follows:
When line A is toggled, a 0 is sent.
When line B is toggled, a 1 is sent.
I currently use this to push out ...
- 289
5
votes
3
answers
555
views
With modern connectors, is the metal shell used as a conductor?
Does the metal shell of a connector, such as USB and HDMI, serve a conducting purpose? The metal shell of my TV's HDMI terminal is corroded. Should I make effort to have it contacting and conducting ...
- 59
8
votes
3
answers
979
views
Photodiode speed limitation
I have a system which demands optical data transmission since rotating parts are present. A mixed mechanical-electrical engineering project has led us to use photodiodes to receive data from one ...
- 1,214
0
votes
1
answer
164
views
Hamming code question
Suppose we have m data bits and n parity bits. In order for the Hamming code to function: $$m+n<2^n-1$$
If we have 3 parity bits we can have up to 4 data bits. But lets say we don't have 4 data ...
- 491
24
votes
6
answers
5k
views
Could data transmission power consumption be lessened by transmitting more zeroes?
According to the IEA 250 TWh of power was consumed in 2019 due to data transmission globally, about 1% of worldwide electrical power use.
I would like to pose a very simple question regarding power ...
- 357
-5
votes
6
answers
217
views
Is binary data in actuality a range of high and low to mean each in Computer Science [closed]
I do understand why 1 and 0 are used and why we have to make two states for data transfer storage and the rest. And why those two symbols and not off and on or some other means. It was most efficient ...
- 137
2
votes
1
answer
120
views
Beginner trying to learn how to read start and end addresses for memory chips in hexadecimal
I'm new to electrical (construction management student) and am trying to learn how to read start and end addresses. The practice problem I have been given is in the picture, and I was wondering how I ...
- 21
1
vote
1
answer
1k
views
understanding of UART , if two devices share a common ground. How do they get to the same voltage level for a save data transmission?
My question is related to the common ground in a UART communication.
So far, what I understand how communication in general works is: Distinguishing the voltage between two cables (one is a GND and ...
- 113
3
votes
4
answers
4k
views
How much binary data is transmitted across a physical wire in one clock cycle?
How much voltage change, what I'm calling binary data, can be transmitted over a wire at one time in one clock cycle? I understand, I think, binary data is what we call it and the wire doesn't really ...
- 433
3
votes
1
answer
4k
views
How to "Mirror" or "Split" bar code data scanned by one USB scanner to two computers using Y cable? [closed]
I have searched this site and many others looking for a way to "split" or mirror data from an USB device (bar code scanner) to two computers. We need to do a parallel cut-over from a legacy asset ...
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