Questions tagged [information]
The information tag has no usage guidance.
11
questions
0
votes
1
answer
164
views
Why is Line coding called "Line coding"?
Why is line coding also called digital base band modulation named "line coding" where does it come? and how is the name it to modulation
- 31
0
votes
1
answer
62
views
General relation between size and maximal transmission distance of a transmitter
Suppose I want to build a transmitter to send detectable signals to receivers far away and still want the transmitter is be small. Is this in general possible?
Namely, how would the size of critical ...
- 11
0
votes
4
answers
137
views
How are encoding and decoding different processes from compression and decompression?
In a textbook that I'm reading, it mentioned the following dynamical processes that arise in information theory: "compression, decompression, noise, encoding and decoding error-correcting codes&...
- 201
1
vote
1
answer
111
views
Crystal Oscillator
What are the markings mean on this crystal that I found on a motherboard? Thanks.
- 13
0
votes
1
answer
62
views
Need help with this Huffman coding question
If suppose there are messages m1,m2,m3,m4,m5 with probabilities 0.4, 0.21, 0.18, 0.14 and 0.07. We need to find Huffman encoded output for message sequence m3 m6 m5 m1 m1 m4 m2 m1 m2.
I have solved ...
- 11
0
votes
1
answer
218
views
Metal detector circuit description
I found a circuit for this metal detector and would like to make PCB. I can not find anything about this circuit. Maybe someone would know what this circuit is. What are the best component housings to ...
- 1
0
votes
1
answer
191
views
Reverse engineering random camera module from mobile devices
I have A camera module I believe either from a tablet or a cell phone and I want to know where to find information on the serial pin out or on how to read the ribbon of the camera
0
votes
1
answer
841
views
What is the derivation for Shannon Hartley theorem?
I know by Hartley's theorem that information is proportional to bandwidth and time. The capacity corresponds to information and bandwidth is there. I don't get how the logarithmic part corresponds to ...
- 429
2
votes
0
answers
25
views
How do I learn about RFID families [closed]
I recently got a parallax RFID reader. The documentation says that it only works with the EM4100 family of RFID tags. So I tried looking it up and can’t seem to find any sort of resource explaining ...
- 21
0
votes
2
answers
122
views
Shift Registers for generating codes
can you explain me in simple words how does a linear feedback shift register work for generating a code?
Consider for instance this scheme:
If I have understood it correctly, each block is a D Flip ...
- 3,276
0
votes
2
answers
104
views
Why is information not doubled in this context? [closed]
Regarding the following section from a text:
Why is information not doubled but increased 4/3 times? Can you give an example to clarify what is meant here?
What is meant by information here?
- 3,420