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[AI]Apple's Lightning authentication chip may have been reverse engineered - Page 5

post #41 of 172
now apple can start sueing everyone that makes a cable with some leds on it biggrin.gif

On topic:

That looks cool, i would get one of these if i had an iphone5 biggrin.gif
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post #42 of 172
Summed up, this connector is a vast improvement on the old connector, has more features, smaller form factor.

The reason why you can;t go with micro-USB is because micro-USB can't do 2A.
Quote:
People keep asking why Apple didn’t opt for the micro-USB connector. The answer is simple: that connector isn’t smart enough. It has only 5 pins: +5V, Ground, 2 digital data pins, and a sense pin, so most of the dock connector functions wouldn’t work – only charging and syncing would. Also, the pins are so small that no current plug/connector manufacturer allows the 2A needed for iPad charging. Note that this refers to individual pins; I’ve been told that several devices manage to get around this by some trick or other, but I couldn’t find any standard for doing so.

It's actually much better and much more futureproof than USB.
post #43 of 172
So, does this mean Apple holds a patent on Christmas lights now?
 
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post #44 of 172
Quote:
Originally Posted by chinesekiwi View Post

Summed up, this connector is a vast improvement on the old connector, has more features, smaller form factor.

The reason why you can;t go with micro-USB is because micro-USB can't do 2A.
Quote:
People keep asking why Apple didn’t opt for the micro-USB connector. The answer is simple: that connector isn’t smart enough. It has only 5 pins: +5V, Ground, 2 digital data pins, and a sense pin, so most of the dock connector functions wouldn’t work – only charging and syncing would. Also, the pins are so small that no current plug/connector manufacturer allows the 2A needed for iPad charging. Note that this refers to individual pins; I’ve been told that several devices manage to get around this by some trick or other, but I couldn’t find any standard for doing so.

It's actually much better and much more futureproof than USB.

That's why I wish it wasn't Apple exclusive, but open to all users and the like.
    
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post #45 of 172
It looks cool, any idea on the price yet? rolleyes.gif
post #46 of 172
Quote:
Originally Posted by chinesekiwi View Post

For all those stating why USB can't be used etc...

A electrical engineering analysis of the Lightning connector:

First post
http://brockerhoff.net/blog/2012/09/13/boom-2/

Follow up post
http://brockerhoff.net/blog/2012/09/18/boom-a-follow-up/

Post about the pins
http://brockerhoff.net/blog/2012/09/23/boom-pins/

Analysis of the connector in the iPhone 5
http://brockerhoff.net/blog/2012/09/21/boom-teardown/
Quote:
So, summing up all I said here and in my previous posts:

* Lightning is adaptive.
* All 8 pins are used for signals, and all or most can be switched to be used for power. So it makes no sense to say “Lightning is USB2-only” or whatever.
* The outer plug shell is used as ground reference and connected to the device shell.
* At least one (probably at most two) of the pins is used for detecting what sort of plug is plugged in.
* All plugs have to contain a controller/driver chip to implement the “adaptive” thing.
* The device watches for a momentary short on all pins (by the leading edge of the plug) to detect plug insertion/removal.
* The pins on the plug are deactivated until after the plug is fully inserted, when a wake-up signal on one of the pins cues the chip inside the plug. This avoids any shorting hazard while the plug isn’t inside the connector.
* The controller/driver chip tells the device what type it is, and for cases like the Lightning-to-USB cable whether a charger (that sends power) or a device (that needs power) is on the other end.
* The device can then switch the other pins between the SoC’s data lines or the power circuitry, as needed in each case.
* Once everything is properly set up, the controller/driver chip gets digital signals from the SoC and converts them – via serial/parallel, ADC/DAC, differential drivers or whatever – to whatever is needed by the interface on the other end of the adapter or cable. It could even re-encode these signals to some other format to use fewer wires, gain noise-immunity or whatever, and re-decode them on the other end; it’s all flexible. It could even convert to optical.
Quote:
Originally Posted by chinesekiwi View Post

Summed up, this connector is a vast improvement on the old connector, has more features, smaller form factor.

The reason why you can;t go with micro-USB is because micro-USB can't do 2A.
Quote:
People keep asking why Apple didn’t opt for the micro-USB connector. The answer is simple: that connector isn’t smart enough. It has only 5 pins: +5V, Ground, 2 digital data pins, and a sense pin, so most of the dock connector functions wouldn’t work – only charging and syncing would. Also, the pins are so small that no current plug/connector manufacturer allows the 2A needed for iPad charging. Note that this refers to individual pins; I’ve been told that several devices manage to get around this by some trick or other, but I couldn’t find any standard for doing so.

It's actually much better and much more futureproof than USB.
Well put 2x. I'm going to bookmark this for the future.

>>>>>

Funky cable is funky.
Edited by steelbom - 10/10/12 at 5:32am
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post #47 of 172
Quote:
Originally Posted by M3T4LM4N222 View Post


I'm surprised apple didn't go with Micro USB like all the other smart phones have.

lol no then it wouldn't be super cool extra exclusive iphone-only. The sheep buying iPhones wouldn't feel different that way.

post #48 of 172
Quote:
Originally Posted by steelbom View Post

Well put 2x. I'm going to bookmark this for the future.
>>>>>
Funky cable is funky.

I'm still not convinced, they can easily make a custom usb port that can do more than what the regular usb port can do, just like samsungs usb port that also outputs hdmi

They just want to go proprietary, so that they can have more profit
post #49 of 172
Quote:
Originally Posted by ghostrider85 View Post

I'm still not convinced, they can easily make a custom usb port that can do more than what the regular usb port can do, just like samsungs usb port that also outputs hdmi
They just want to go proprietary, so that they can have more profit

FYI its called MHL and it isn't limited to Sammy phones.
Also; you have to remember you need a dongle adapter to output to HDMI.
post #50 of 172
Quote:
Originally Posted by paulerxx View Post

It looks cool, any idea on the price yet? rolleyes.gif

$40 bucks for the cable and the dock $19.90 for just the cable. thumb.gif

http://www.macrumors.com/2012/10/09/apples-lightning-authentication-reportedly-cracked-unauthorized-third-party-cables-coming/
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