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KB3001
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Re: SRAM for finger
KB3001   9/29/2013 11:50:42 AM
Exactly, why 3MB!!?

krisi
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Re: SRAM for finger
krisi   9/29/2013 11:41:53 AM
I guess finger signature is stored e2prom and after power up gets downloaded to the SRAM for faster user login in.... So the question remains why 3Mb is needed

elctrnx_lyf
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Re: SRAM for finger
elctrnx_lyf   9/29/2013 11:36:10 AM
Why it needs to be SRAM in any case? But there is a very high probability that they need fast accessible memory for the user to feel the login is as fast as swiping finger across screen.

AZskibum
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Re: Time and Money
AZskibum   9/29/2013 8:44:30 AM
But they bought MMI for the patents more so than for the hardware. Still, now that they find themselves in the hardware business, an SoC should not be automatically ruled out. There is always a cost/benefit analysis to be done, product differentiation, etc. It really depends on Google's strategic plan with that business, and how the relationship with its Android partners factors into that plan.

KB3001
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Re: SRAM for finger
KB3001   9/29/2013 6:50:41 AM
There must be a misunderstanding somewhere, this can't be right..... 3MB and of SRAM for secure storage ..... of fingerprints?? Surely not....

KB3001
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Re: Time and Money
KB3001   9/29/2013 6:46:55 AM
That would be madness IMO. Google should focus on what they are good at (software, search technology) and partner with others in other areas. Buying Motorola Mobile was a mistake in my opinion, so to go for the SoC design business would be madness for me....

alex_m1
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Re: Time and Money
alex_m1   9/29/2013 6:25:09 AM
Soc wouldn't be a good investment for Google, for that amount of money (few hundred millions at least) they can achieve amazing feasts in many areas, while a soc gets only a small relative and temporary advantage. And anyways, they managed to get unique features in their soc in the motox phone by working with others, so it's seems good enough.

_hm
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Re: Time and Money
_hm   9/28/2013 8:20:39 PM
Google did Android! Now it is time for them to make big dive in to making its own SoC. To get head start, they can buy some vendor in that field.

J---
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Fingerprint data storage
J---   9/28/2013 2:45:37 PM
With the exception of law enforcement, I am not aware of anyone storing a full finger print image for verification. All that would be stored would be a short term image and 3 megabytes seems rather large.

For security, all that should be stored is a fingerprint signature. This is more than adequate for verification and removing false positives, but makes it pretty much impossible to recreate the fingerprint.

jaybus0
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Re: Large on-chip RAM
jaybus0   9/28/2013 12:09:48 PM
Yes. Dedicated SRAM for the GPU would make sense.

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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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