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Apple Debuts Three Custom Chips

AirPods' W1 is company’s first wireless SoC
9/7/2016 04:30 PM EDT
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scud
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Air pod pairing
scud   9/13/2016 4:58:46 AM
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Pairing, hmm. Stupid question: what happens when two (or more) Air Pod sets are brought together?

rick merritt
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Re: Correction on the ISP performance
rick merritt   9/9/2016 2:14:42 PM
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Good catch. Fixed.

marcocjacobs
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Correction on the ISP performance
marcocjacobs   9/9/2016 5:02:07 AM
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In the article it says "It sports twice the throughput of the prior ISP, executing up to 10 billion operations per second". However from the talk, at 67:00, Phil mentions the ISP does 100 billion operations in 25ms, So 4 tera operations per second, 400x what's stated in the article.

http://www.apple.com/apple-events/september-2016/

rick merritt
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Stock slides
rick merritt   9/8/2016 6:11:21 PM
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Interesting that Wall Street was not greatly impressed with what one analyst called "innovation in a mature market"

Doug_S
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Keeping the ear pods in phase
Doug_S   9/8/2016 5:31:46 PM
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Can someone explain why this should be difficult? The phone is providing it the two channels of music, which are digital data in sync in the phone, right? Assuming the two earpods are identical and take exactly the same amount of time to convert the digital data they receive into analog impulses for the tiny speakers, the only source of phase variation would be speed of light delays for the 2.4 GHz BT going to L and R. Hard to believe that nanosecond would be audible.

 

If there are problems keeping them in sync, simply passing some timing information along with the digital sound should take care of that if the earpods can communicate with each other. But I'm highly skeptical that is even necessary.

RadioGraybeard
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Re: wireless earbuds
RadioGraybeard   9/8/2016 4:23:34 PM
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I guess that solves that!  BT it is.

That NXP Near Field Magnetic Induction solution that uses the user's body to couple the signal is an interesting approach.  Frankly, I would have never thought of that.  The NFC systems I've seen required the parts to almost be in contact with each other.  With that NXP NFMI, they really are that close.  At least as pictured on that two page brochure.

 

 

GSKrasle
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Re: wireless earbuds
GSKrasle   9/8/2016 2:01:22 PM
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rick,

There is a solution that I will use if I get these: simply attach (how? they still have to fit the charger) a fat white (for visibility) string between the earbuds, preferably with a third branch to a 'knob' that can be pushed through a button-hole or so a loose knot doesn't come undone. Even better would be a way to attach the string to the phone itself, so they automatically stay together.

'Think I can get a patent?

Kevin Krewell
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Re: wireless earbuds
Kevin Krewell   9/8/2016 1:27:55 PM
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I was at the event and Apple told me they use BT for the AirPods connections. Now, exactly how they feed audio to the two ear buds and keep the music in phase is part of the secret sauce in the W1 processor. I believe the part of the AirPods that hangs down from the ear likely includes a BT antenna in addition to the microphones.

BTW, magnetic induction can be used for stereo earbuds - NXP has the NFMI tecnology:

http://www.nxp.com/products/interface-and-connectivity/wireless-connectivity/nfmi-radio-solutions/nfmi-radio-for-wireless-audio-and-data-streaming:NXH2280UK

http://www.nxp.com/documents/leaflet/75017645.pdf

Edit: I meant the W1 chip is in the AirPods, not the M1. 

Kevin

realjjj
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Re: wireless earbuds
realjjj   9/8/2016 1:26:38 PM
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It's Apple so you can assume that it's not their own silicon, nor is it custom, not much of a point in spending on that.

They use Bluetooth with a simplified pairing procedure.

A quote from Engadget "All you have to do is open up the charging case with your iPhone nearby. Doing so automatically pairs the AirPods with all the Apple devices that are linked to your iCloud account."

jnissen
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Re: wireless earbuds
jnissen   9/8/2016 1:01:37 PM
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DT's comment was right on. When these things start to go missing it will be a non-starter. I'd never get a set for my kids as they eat through standard wire type in six months and its not the wires that fail.

 

Perhaps they can have a "Find my earpod" app to locate the things! If BLE that may be possible.

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