Signal Encoding 1: Digital Signals

[@SBala-xk6lr]

Not all heroes wear capes

[@googlable]

0:40 NRZ-L
2:08 NRZ-I
4:57 Bipolar-AMI
8:00 Pseudoternary
9:24 Manchester
12:32 Differential Manchester

[@guytonktgigi]

Is 4B/5B digital encoding the same thing as pseudoternary encoding?

[@shreyaredkar9983]

Thanks bud!!

[@amandavalentini5603]

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[@amandavalentini5603]

@@guytonktgigi 7z8 88xy8xt7,yx,IT,

[@imankhouny5682]

יחיח

[@train4905]

Dear sir,absolutely explained.crystal clear clarity.
You have a very gifted way of teaching.
Keep up the great work sir.

[@Strasbourgeois]

Vertical lines representing clock signal frequency helped a lot! Thank you Jacob!

[@jozefsoucik3115]

thanx. This explanation is much more clear, than readings tons of papers.

[@PaddleEatRepeat]

for people, who like to skip parts:
NRZ-L @ 00:41
ua-cam.com/video/i_TLLACZuRk/v-deo.html
NRZI @ 02:08
ua-cam.com/video/i_TLLACZuRk/v-deo.htmlm8s
Bipolar-AMI @ 04:41
ua-cam.com/video/i_TLLACZuRk/v-deo.htmlm41s
Pdeudoternary @ 08:02
ua-cam.com/video/i_TLLACZuRk/v-deo.htmlm2s
Manchester @ 09:24
ua-cam.com/video/i_TLLACZuRk/v-deo.htmlm24s
Differential Manchester @ 12:32
ua-cam.com/video/i_TLLACZuRk/v-deo.htmlm32s

[@TheWebPotato]

Thanks. You're a hero.

[@hamzahakimi267]

I read the chapter from Behrouz A. Forouzan 's data communication book but i didn't understand anything because i m not a good in English language ;i m from Yemen
,But this video with cc English auto-generete i finally understood this schemes ,so thank u very very mr.jacob

[@facelesstech6422]

thank u so much, this will help me with my upcoming computer science exams

[@m_yankin]

Thank you so much for the explanation. I've been struggling to find a good video on this topic, but you delivered it perfectly!

[@tonnymutebi9754]

truly thank you sir, i was facing a problem with Manchester and Differential Manchester but this video clarified it, thank you,😄😃

[@athmajaashinsani5469]

Thank you so much for this very clear explanation!

[@miguelangellopezdibenedett9783]

Many thanks, very good and detailed explanation.

[@tariqqazzaz8101]

I am so grateful to you sir Jacob

[@PrinceWesterburg]

Its worth mentioning that in digital audio, one of the biggest problems is that bits are measures on the rise time and not the mean. If this is not fast enough due to cable capacitance or a host of inductance issues, then the bit can be read wrong and errors occur. So in computing and nicely designed circuits with proper RF connectors this rise time may be a good idea but in the grubby real world it can be worth avoiding, even in the relatively slow khz range.

[@tungbme]

very easy to understand and helpful, thank you very much

[@swaroop6044]

thx sir, it helped for preparing for my exams hope u do more videos which r helpful

[@juhijuhi2074]

GREETINGS FROM INDIA SIR,THANKS FOR THIS

[@YoungVinny]

Some other videos say that a 1 goes from high to low and 0 goes from low to high....I'm confused and unsure which one to believe now..

[@tadiniteriad8093]

Doesn't really change much. It's just the same signal reversed.

[@RahulKumar-wu1dv]

Thanks a lot......very good explanation..........a big thumbs up

[@fadinasri8377]

كفووووووووووووو الرب
GODLIKE!
👍👍👍👍👍👍👍👍👍

Very good explanation, dude!

[@neelsen1027]

Thank you sir.. It was beautifully explained..

[@thehimanshu-tiwari]

well old is gold

[@zgnmedia]

Sir,Thanks for great explanation.

[@ΑντρέαςΣωτηρίου-π8γ]

great work

[@rock-afire-fan]

differential manchester is the same thing as biphase mark code except the data is offset 1/2 clock cycle and the bits are inverted.

[@robertfaney4148]

in differential manchester if there is a zero you transition at the begining. OK. So at the beginng you have two choices to transition either you go up or down . So which way ?? that is the issue that is not clear , if anyone could help ??

[@robertfaney4148]

@glyn hodges Thank u heaps, u replied to a post I posted almost a year ago. really appreciate !

[@nickhlope1717]

What's the answer

[@harshavardhankakarla4579]

What if there is a 1 at the beginning of Differential Manchester ?
What should I assume ?

[@mihaidogaru9938]

I guess you should know a previous state. I would ask the teacher if I ever got that as an exercise. Or simply assume a previous state and write it down on the paper.

[@كيرلسشنودة-ظ5ث]

what a hero !

[@rishiyaswanth]

Super explanation dude👌🏼 my sir explanation is waste infront of you

[@rakib562]

Thanks sir that was really helpful for me

[@muhammadziaulhaq7254]

u learning also?

[@kashback7448]

Very Very Helpful.... Thanku sooo Much...

[@poonambansal2874]

extremely helpful video!!!

[@mg-di5zd]

Thanks Scacob Jhrum

[@अंशुमानअवस्थी]

Great work 👍

[@heemabhsonowal658]

simple yet beautifully crafted.. Thank you.. u rock

[@samuelsugur383]

0 will start same for NRZ-I as started in NRZ-L ...

[@larryvaughn5843]

What type of encoding is used by computer network cards sending a signal through Ethernet cabling?

[@JacobSchrum]

I don't think there is a single answer for that. Different networks can use different encoding schemes. It's up to what the hardware supports and how it is configured, though standards change and evolve over time.

[@alinaqializadah]

Hello to all
I have a project titles (Effects of coding techniques on network performance in fiber optic networks). But I don't understand exactly the coding techniques in optical fiber networks. what are techniques ? In optical fiber, modulation and coding are the same?

[@parthasarathysil1300]

Thank you very much.

[@riaeydal-mqrey4948]

Thanks thanks thannnnnnnnks
you are abest man to got me info

[@chanelpierre7247]

Thanks!

[@arpitajana9051]

thank u ..it was a big help

[@whytushar]

Difference between Bipolar-NRZ and AMI, anyone?

[@alta-sh]

Bipolar-NRZ has unpredictable drastic mood changes...

[@sto2779]

You know any books that discusses about these "line codes"?

[@ibrahimalmalluhi6602]

Thank you so much !!!!!

[@memes6587]

is there a diffrence between english and french systems in incoding for example with manshester they teach us 1 is a drop while 0 is up

[@arshiesalonga6005]

Hi, I have a question in NRZ-L, I just read before that the binary 1 represents positive, then 0 represents negative. But in your video the binary 0 represents positive. Can you please help me to explain? I a bit confuse. Thanks in advance.

[@JacobSchrum]

My discussion is based off of William Stallings' book on Data and Computer Communications, but I believe that a scheme in which the meaning of +/- is reversed would also be legitimately referred to as a NRZ-L scheme ... the idea is the same, and as long as both ends of the communication agree on the same convention, communication should be possible.

[@arshiesalonga6005]

Ow I see, thank you Sir Jacob

[@mihaidogaru9938]

Thank you, sir.

[@nimsarafernando8084]

14 slides on one paper : )

[@anthonyyoussef01]

That's amazing. I go to Northeastern University, how ironic

[@vishaltomar121]

thnku sir that was really really helpful

[@abdullahs3489]

thanks a lot bro! helped a lot

[@nathan5508]

thank you

[@dineshsamal9140]

Thanks bro..

[@lukestanleycastro6722]

sir, in the differential manchester part, what if the starting point is 1? should I draw a line, or what?

[@arshaachu7323]

Sir, for the forth bit rpstn in diff, should there be high-to-low than shown.....is that a mistake???

[@abbadkamel8839]

thank you so much

[@samimesele4475]

am proud to be ethiopia....long live abyssiniya

[@andrew1om]

Thank you for explanation. Does anyone knows where signal encoding can be used? I mean the knowledge

[@JacobSchrum]

Any signal sent along a phone line or network (Internet, etc.) has to be encoded in some way.

[@JacobSchrum]

Certain encoding standards are more common in particular countries, and a variety of different encodings may be used throughout the transmission of a signal for different legs of the journey. Conversions happen depending on the particular medium of transmission, distance, etc.

[@andrew1om]

There's so much I don't know

[@santoshmunagala5154]

These encoding mechanisms are used especially to support clock recovery in transceiver circuits.

[@amitsingh-th7em]

IF THE encoding value starting is 1 than NRZ -I IS starting form up or down??

[@johnzydryxcstaana9002]

What if it's all 1 on NRZ-L and no zeroes?

[@mohamednasr6914]

god bless you :)

[@shatakshikapdi9685]

Excuse me sir Jacob Schrum
Could you please check the starting of Manchester coding ?
It seems a bit contradictory

[@JacobSchrum]

Can you clarify what seems contradictory about it?

[@shatakshikapdi9685]

Sorry For the late reply
Was applying your concepts in my exam (Serious here)
It was my mistake
I was getting confused between the up transition and the down transition
Anyways Thankyou for this great video!
Helped me a lot!

[@hatembenmussa4988]

so helpful thank u

[@samuelsugur383]

NRZ-I is going wrong for starting 0..

[@aboalhassan448]

thank you :)

[@Techtips_AU]

Can you please answer this question, I saw your video just to answer this....
How many signal levels will be required to encode 4 bits in a single symbol??
->Is the answer 12(As per my research)
Thanks in advance

[@JacobSchrum]

4 bits can represent up to 16 distinct values, so you would need that many signal levels, but you probably cannot successfully transmit a signal with this many signaling levels because the noise would make it too difficult to determine the difference between signal levels, unless you use a much more advanced scheme that anything discussed here.

[@Calm_Energy]

why are there different encoding methods rather than stick with one?

[@TheNDSharma]

thank you!

[@parthgajiwala9829]

For NRZ-L is it necessary to use High level for 0 and low level for 1?

[@JacobSchrum]

NRZ-L is a particular encoding scheme that follows these particular rules, but in principle there is no reason why a communications scheme that reversed the roles of 0 and 1 would not work, as long as both parties agreed on the same convention.

[@vinothvk2711]

In nrz i . Suppose we have 1 in start , whether should start up or down?

[@superqaxclub]

Start from down

[@guytonktgigi]

Is 4B/5B the same as pseudoternary?

[@MichaelLearnsToCode]

thanks ALOT

[@halorisma132]

thanks a lot

[@mehdinouira3540]

can you send me the Miller encoding video

[@OmarAhmed-zj8mg]

thanks

[@oguz-kagan]

i didn't understand manchester

[@xBlue.10]

Can we have a word from this code?

[@omeshtiwari3673]

R u a researcher if u r I have a question

[@mohdnasir5140]

Who is Nap. Hill?

[@michelerosito923]

Thank you! I've understood!

[@fadinasri8377]

- GG
= THANK UU 👍👍

[@hamoudalotaibi2278]

2019 !!!

[@ibrahimmohammed2303]

رائع جدا جدا

[@crankMiHoffer]

Oh Hi 👋

[@Natkhat_reels_n_Vlogss]

bad sound quality

[@anweralikhan9791]

da sa ghwal de yar

[@mengstudesale]

work ip address

[@hernandomora3635]

¹

[@MikeYKesh]

t.y (y)

[@stanleyngugi1675]

every time he draws over a line, i cringe

[@Huy3ker]

Thank you very much

[@muhammadziaulhaq7254]

thanks