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What's Inside Microsoft's Kinect, Anyway?

- By - Source : Tom's Guide US

It's been a Kinect-filled few days and it's not going to stop today.

Just as new users were settling in to play with Microsoft's latest Xbox 360 accessory, iFixit was tearing their unit apart. What? Someone's gotta do the dirty work around here.

This is slightly more interesting than most of the gadget teardowns iFixit does because there are not a lot of products like Kinect out there. When it comes to phones, netbooks, laptops and MP3 players, we know what it takes to put a device like that together. However, Kinect is a different story altogether. On Monday, we overheard one guy in line to buy Kinect telling someone, "I don't actually know how it works; I think it runs on magic actually. That sounds right," and we think a lot of people might be in the same boat. Maybe not to that extreme, but you'd probably like to know more about what's inside, right?

Well, here's what iFixit found:

* Four microphones -- a first, according to CEO Kyle Wiens. "We've taken apart binaural devices before, but this is our first quadaural sensor setup!"

* Two cameras (pictured).

* An IR transmitting diode.

* One fan. Wiens says that for a 12-watt device, Microsoft seems very paranoid about heat dissipation and blames this paranoia on the infamous red-ring-of-death problems that have plagued the 360. "This is a good thing for consumers, but we can't help but wonder if they've gone overboard in the cooling department," Kyle said.

* 64 MB of Hynix DDR2 SDRAM.

* A "tiny, diminutive, even" motor (pictured).

* A three-axis accelerometer.

* A Prime Sense PS1080-A2. "Kinect is based on Prime Sense's motion detection technology," explains Kyle. "This chip is the Kinect's brains —– all the sensors are wired into here for processing before transmitting a refined depth map and color image to the Xbox."

So now you know what's inside, why don't you check out the pictures? Click on through to iFixit for the full gallery!


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Anonymous 11/06/2010 2:04 AM
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wow thats quite different to your everyday piece of machinery

nukemaster 11/06/2010 2:09 AM
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You should see the inside of a Sega Dreamcast :)(i took one of those apart) thats got allot of stuff crammed in.

beans4you 11/06/2010 2:19 AM
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haha yeah, i remember tearing mine apart with a knife, it was dead.. 56k modem! :D

Anonymous 11/06/2010 2:52 AM
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Why would this need a 3 axi accelerometer. Dosen't it just sit above your TV watching you and stuff...

Manos 11/06/2010 2:55 AM
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""I don't actually know how it works; I think it runs on magic actually. That sounds right," and we think a lot of people might be in the same boat."

Its funny cause there is the other side of the coin, with retards and ignorants that keep comparing this with an EyeToy.. lol I do have an EyeToy that its never used. I last hooked it up for trying out my Move on my PS3 but thats about it. I just collect, make my own personal opinion and keep using if worth it. But dont go compare a freaking webcam with Kinect. ffs


Im Greek so ill be getting mine on the 10th. I know ill laugh my ass off even from looking stupid myself infront of it to just check out the offerings for now and even more when i get others try this out. Personally I know ill enjoy it mostly when the next wave of games and finally some triple A Kinect only games are released for it. By then also hopefully we'll have Kinect use for our PCs too :)

soldier37 11/06/2010 2:57 AM
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reprotected 11/06/2010 2:58 AM
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That thing has more components than 4 Wiimotes with Motionplus and a Wireless sensor bar.

kevlardax 11/06/2010 3:23 AM
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This thing has huge potential for robotics hobbiests.

existencenow 11/06/2010 3:47 AM
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I entirely agree with kevlar. with only one contradiction. microsoft would financially rape any company that would want to use these ideas with there giant Lawsuithammer.

loomis86 11/06/2010 3:57 AM
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Accelerometer???

man that's creepy. What is this thing gonna do, grow legs and start walking around?

hiruu 11/06/2010 4:08 AM
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I think this is amazing...I remember some sony drones saying this was just an overhyped eyetoy...lol...yeah, and eyetoy with as more memory and processing power than a Wii. I love my kinect, and I would highly recommend it to anyone looking for something unique in the motion gaming space...it's not revoltuinary (not like the Ipad, wink wink), but it is very unique, and the potential is there to really deliver a experience unlike any. I've played 3 games on it, Fighters Uncaged, Dance Central, and Kineect Adventures, and Dance Central is simply a must try/have title. Even if you're not into dancing, there is something really cool about having an avatar track you so closely. Fighter's Uncaged is pretty good as well, but the tracking isn't anywhere as good as D/C. The bundle software is okay, but as it's no wii sports. Overall, I'm looking forward to what gets released over the next 6 months for Kinect.

reprotected 11/06/2010 4:09 AM
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loomis86 :
Accelerometer???man that's creepy. What is this thing gonna do, grow legs and start walking around?


Not if it has a wrist band. Wait... NVM.

chick0n 11/06/2010 5:02 AM
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soldier37 :
Some other outdated crap that goes along with the outdated crapbox Im sure. Hope this console fad soon passes PC Gaming FTW.



you sir are the biggest retard of the day, if not the year.

I don't even have xbox but i just have to call u that.cuz u deserves it.

AndrewCutter 11/06/2010 5:18 AM
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as gamers, we should enjoy what each platform has to provide. if i could i would get the kinect along with everything else

Maxor127 11/06/2010 5:51 AM
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pawessum16 11/06/2010 6:52 AM
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Personally, I think a hybrid of the Move and Kinect would be even more awesome (albeit more money). I like the idea of full body tracking, but I also like the idea of something to hold in my hands with buttons and controls. I'm not much of a lazy person, so the thought of actually being able to act out the actions in a first person shooter like throwing grenades, reloading, meleeing ect would be very appealing to me.

gmarsack 11/06/2010 6:55 AM
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blueboy01 :
Why would this need a 3 axi accelerometer. Dosen't it just sit above your TV watching you and stuff...


No, once Skynet comes online and becomes self-aware, it will need to use the accelerometer for basic locomotion.

brianmoz 11/06/2010 6:56 AM
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Maxor127 :
That's exactly what it is. An overhyped EyeToy. Until I see it play something other than dance games or other "family" games that make you flail around like an idiot, then how is it not like an EyeToy? It's going to at least need extra peripherals to play any serious games. I don't think the shovelware companies are even going to waste time on it.


Maxor127 :
That's exactly what it is. An overhyped EyeToy. Until I see it play something other than dance games or other "family" games that make you flail around like an idiot, then how is it not like an EyeToy? It's going to at least need extra peripherals to play any serious games. I don't think the shovelware companies are even going to waste time on it.




Que portentous gamer

Khimera2000 11/06/2010 7:49 AM
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Maxor127 :
That's exactly what it is. An overhyped EyeToy. Until I see it play something other than dance games or other "family" games that make you flail around like an idiot, then how is it not like an EyeToy? It's going to at least need extra peripherals to play any serious games. I don't think the shovelware companies are even going to waste time on it.



You are aware that the games are all targeting casual gamers initially right? that the EyeToy is nothing more then a webcam with some softwear behind it lacking the audio, or depth sensing capabilities that is on the K...

Unfortionately to say that the EyeToy is like the Kinect is like saying my webcam is like the Eyetoy, and in turn like the kinect becaus it to can track my face and i can also play strange games with it... But I am looking forward to your argument on how the EyeToy isint like a normal WebCam supported by vender softwear.

FloKid 11/06/2010 8:02 AM
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Kinect, that's what's inside.

Vladislaus 11/06/2010 8:51 AM
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Maxor127 :
That's exactly what it is. An overhyped EyeToy. Until I see it play something other than dance games or other "family" games that make you flail around like an idiot, then how is it not like an EyeToy? It's going to at least need extra peripherals to play any serious games. I don't think the shovelware companies are even going to waste time on it.


Can an eyetoy track the movements of your body in 3d? No. The eyetoy is just a webcam nothing more, nothing less.
The ps move on the other hand is a complete rip-off of the wii-mote.
Most of the games on wii are family games. Compare how many consoles nintendo has sold with microsoft and sony.

Hupiscratch 11/06/2010 8:52 AM
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Why this tiny motor? Does it move or something like that?

pawessum16 11/06/2010 9:17 AM
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NuclearShadow 11/06/2010 10:33 AM
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pawessum16 :
Just to set it straight, Sony came up with the motion idea before the wii even came out; way back in the ps2 days. They were just not adventurous enough to implement it.http://www.youtube.com/watch?v=JbS [...] re=related



However Sony did not come up with the motion idea on the consoles like you claim.
Likely your not old enough to have experienced the power glove for the NES.
That was released back in 1989. Sure it was terrible and I mean TERRIBLE.
But to my knowledge it was the first console motion tracking device.

I think its clear that Nintendo never really dropped the possibility of implementing
the concept back into gaming but didn't want a repeat of the horrible power glove and
so they waited until hardware caught up to their then innovative idea. You would be surprised on the things that have been attempted before that are now being marketed today as new.
For example the Sega Master System even had 3D glasses.

Vladislaus 11/06/2010 10:37 AM
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pawessum16 :
Just to set it straight, Sony came up with the motion idea before the wii even came out; way back in the ps2 days. They were just not adventurous enough to implement it.http://www.youtube.com/watch?v=JbS [...] re=related


First that is not a motion controller. the camera only tracks the color of the wand. Since cameras lacks depth it can only track basic movements. Also the wii as been in development since 2003.

Anonymous 11/06/2010 2:53 PM
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A Kionix MEMS KXSD9 accelerometer is probably used for inclination and tilt sensing, and possibly image stabilization.

jasonpwns 11/06/2010 3:14 PM
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mauller07 11/06/2010 3:16 PM
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i think the motor and the accelerometer are to allow the camera to orientate itself so it is level along the horizontal to allow it to track to its best, people tend to stand upright and not off at odd angles, the camera could be setup at an odd angle causing problems with tracking.

personally i still think it is a bit of a gimmick, precision pointing like on the wii remote is great for fps but i am not completely sold on the motion body tracking as just the only input method, will have to wait and see how someone adapts this from party games to something serious.

ulysses35 11/06/2010 3:21 PM
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Where is the "wont work with dark skinned people" device ?

cookoy 11/06/2010 5:37 PM
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those iTearIt guys have all the fun

yargnit 11/06/2010 5:46 PM
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I'd really like to know if/how the kinect would work if the sensor was placed somewhere besides directly above/below the tv. Such as mounted to the celing pointed down, or behind you looking toward the screen. (To give more distance from the sensor for people with limited space).

If I could put at 8 feet up it would buy me the extra 2-3 feet if room I'd need to meet the reccomeneded 6 foot minimum distance.