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PHW_#1
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re: Teardown: Inside iPhone 4S
PHW_#1   10/18/2011 1:33:58 AM
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Is Siri linked to a special IC to handle speech recognition? or just pure software?

batavier
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re: Teardown: Inside iPhone 4S
batavier   10/17/2011 9:43:43 PM
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Now that we know what's inside, we can all go out and make our own...:)

old account Frank Eory
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re: Teardown: Inside iPhone 4S
old account Frank Eory   10/17/2011 9:34:14 PM
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Each new generation has a fancier audio CODEC chip, but they still ship the iPhone with those 50 cent earbuds :(

Pituch
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re: Teardown: Inside iPhone 4S
Pituch   10/17/2011 8:57:06 PM
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Rumor has it they are using a diversity TX/RX antenna such that they can switch transmission to the second antenna if reception drops on the first.

elPresidente
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re: Teardown: Inside iPhone 4S
elPresidente   10/17/2011 8:31:07 PM
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Yes. work there. Steal their trade secrets. They won't mind.

chanj0
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re: Teardown: Inside iPhone 4S
chanj0   10/17/2011 4:22:09 PM
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Using qualcomm chip set to consolidate the model is a smart move. Not only does it reduce the number of product to manage but also provides an upper hand against competitors. Now, iPhone 4S becomes a world phone. I have heard that the antenna location has been moved to the upper corners. I am hoping I will see coverage of antenna design in this article. Any further information is welcomed.

GREATTerry
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re: Teardown: Inside iPhone 4S
GREATTerry   10/17/2011 8:58:08 AM
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How about the antenna design? Is there any clue this is a new dual antenna design with improved reception?

_hm
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re: Teardown: Inside iPhone 4S
_hm   10/16/2011 9:17:05 PM
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Is it possible to know what software packages do Apple use to design this devices? I am interested in knowing ECAD, MCAD and other simulation tools.

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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