- #1
gEOdude
- 25
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Hey guys I've attampted to do this as best I can but i need some help, becasue i know there are mistakes i have to fix.
View attachment 4321
View attachment 4321
HELPMEHELPME said:Hey guys I've attampted to do this as best I can but i need some help, becasue i know there are mistakes i have to fix.
I like Serena said:Hi HELPMEHELPME! :)
Checking the parity means that there should be an even number of 1's for each parity bit.
For P4 there are 3 bits that are 1, meaning that it has incorrect parity (instead of correct parity).
As a result, there is 1 bit wrong in the section 4,5,6,7 (P3), and there is also 1 bit wrong in section 8,9,10,11 (P4).
What might you conclude from that?
HELPMEHELPME said:Is this better?
I like Serena said:That fixes the mistakes in the correct/incorrect parities.
Good! :)
However, since we see that some of the parities are incorrect, we know that at least 1 bit has been flipped...
HELPMEHELPME said:Could you give me a hint, on what i should do. Which bit to flip? I thinks its one of more of 5 or 7 or 9 or 11 or is it another one ?
I like Serena said:Indeed, one of those must be wrong.
More specifically, from P3 we can tell there is a bit wrong in the section 4,5,6,7.
And from P4 we can tell there is a bit wrong in section 8,9,10,11, which must necessarily be a different bit, since they don't overlap.
What might we conclude from that?
HELPMEHELPME said:There not all wrong are they? (Thinking) is it 5? PRETTY PLEASE I NEED TO KNOW IM GOING NUTS!
A Hamming Code is a type of error-correcting code used in computer science and telecommunications to detect and correct errors that may occur during transmission or storage of data.
A Hamming Code works by adding extra bits to a data stream based on a specific algorithm. These extra bits act as parity bits, allowing the code to detect and correct errors that may have occurred during transmission.
A Hamming Code is typically used when transmitting or storing important data that cannot afford to have any errors. It is commonly used in communication systems, such as satellite and wireless communication, as well as in computer memory systems.
The advantage of using a Hamming Code is that it can detect and correct errors in a data stream, increasing the reliability and accuracy of data transmission and storage. It is also relatively simple and efficient to implement.
No, a Hamming Code is designed to correct single-bit errors, meaning it can only correct errors where one bit in the data stream has been changed. It cannot correct multiple-bit errors or detect errors in the parity bits themselves.