How does Bluetooth Work?
8,067,306
Published 2021-05-19
This video is sponsored by KIOXIA. Visit KIOXIA's website to see their lineup of solid-state drives:
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This video is part of a series that explores how wireless headphones work.
1) Audio Codecs • The Engineering Inside Wireless Earbu...
2) Noise Cancellation • How Do Noise Canceling Headphones Work?
Script, Modelling, Animation, Editing- Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee
Table of Contents:
00:00 - How does Bluetooth Work?
00:37 - Traffic Lights
01:26 - 2.4GHz Spectrum
02:44 - Issues with the Bluetooth Visualization
05:56 - Details behind Bluetooth
07:30 - Bluetooth Packets
08:27 - Frequency Hopping Spread Spectrum
10:58 - Noise in the 2.4GHz Spectrum
13:05 - Bluetooth Signal Integrity
14:21 - Sponsored Segment
15:33 - Frequency Shift Keying & Phase Shift Keying
18:16 - More Details on Scheduling & Packets
20:43 - Outro
Key Branches from this video are: Wireless Headphones & Audio Codecs, Noise Cancellation
Erratum:
Animation built using Blender 2.90.1 www.blender.org/
Post with Adobe Premiere Pro
Additional Patreon / YouTube Member Credits Not Shown in the Video:
Adit Kaul
Credits:
Wikipedia contributors. "Bluetooth", "Frequency-Shift Keying" , "Phase-Shift Keying" , "Wireless" Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited May, 2021
Music Credits
Sunburst, Tobu & Itro is licensed under Creative Commons Attribution License
www.7obu.com/
• Video
#Bluetooth #Wireless #Headphones
All Comments (21)
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Every so often I need a reminder of how advanced our stuff really is. Just think of how many systems like this make up even a simple smartphone.
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Im always impressed by how smart some humans were that they came up with this or other mind blowing tech
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The fact that I can send a message from my phone from here in the UK to someone in Japan in less than half a second is just nothing short of amazing. What a time to be alive.
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7:45 the fact that you wrote "send to: Hedwig Eva Maria Kiesler" aka Hedy Lamarr, aka the woman who is the reason we can use Bluetooth technology today due to her developing frequency hopping, warms my heart! :')
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So it's magic Got it
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I'm a Bluetooth engineer at a Bluetooth chip company. You did a good job for explaining the basis of the technology behind Bluetooth Classic. However, the newer version of Bluetooth, Bluetooth Low Engergy is quite different from Bluetooth Classic in terms of baseband transmission.
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If you pause the video at places, you'll realise how detailed the video is at each timestamp, this must have took days to compile such great information in so easy to explain intuitive manner!
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As a doctor in Wireless network, IoT and low rate communication, I understand most of this, however, I've never listened & visualised the way this was explained here, it was so exciting to watch & listen to. Thanks to whoever created this content! 🙏🏾🙌🏽
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This seriously just makes me appreciate how amazing our technology is that we take for granted. Seriously mind blowing stuff.
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This is so complicated, props to the engineers creating this masterpiece
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0:00: 📶 Bluetooth technology uses electromagnetic waves to transmit information wirelessly between devices. 3:47: 📡 Different visualizations of Bluetooth waves and frequencies are explained, along with the division of the electromagnetic spectrum into channels. 8:32: 📡 Bluetooth operates by sending packets of information through frequency hopping spread spectrum. 11:11: 🔬 Bluetooth headphones and smartphones can lose signal when a microwave is on, but Bluetooth signals can easily travel through obstacles like walls. 15:43: 💡 Bluetooth uses frequency shift keying and phase shift keying to transmit information using electromagnetic waves. 18:36: 🎧 Bluetooth headphones use frequency hopping to transmit data between the smartphone and headphones, with packets consisting of access codes, headers, and payloads of varying sizes. Recap by Ta
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The precision required and all the various pieces working together in harmony is awe inspiring.
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I was a designer of CSr bluetooth chips some 10+ years ago and am literally working on a wifi 6 chip right now these explanations and especially the analogies are perfect!
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How did we go from banging rocks to this
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Absolutely brilliant analogies to explain extremely difficult concepts such as phase shifting. Awesome video as usual!
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I love this video so much, the visuals, the notes, the knowledge, the education. Its phenomenal and I would love to see more. I am going to enjoy this channel a lot
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Fantastic! This video will be useful for many years to come. Great job Teddy😎
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One of the things that absolutely blows my mind is anything wireless. I understand how it works, but it still blows my mind. The fact that I can pull my phone out of my pocket, and just watch a movie in Ultra HD quality is something I'll never be able to get over. I can't even begin to describe why it's so mind blowing to me, but if you know, then you know.
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This video is unreasonably good. I dont think i've seen an educational video of any sorts with better analogies, explanations or better representation than this one. Big up, man!!!!
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these animated education of these complicated devices and technologies is much more than grateful... I really request to kindly give us more and more informative videos