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cd2012
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GPS?
cd2012   5/6/2014 7:12:55 AM
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Isn't the glass intended to be used in conjunction with a cellphone which likely has a GPS receiver?  Why does it have GPS?

ykc0
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OMAP4430
ykc0   5/6/2014 10:18:20 AM
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OMAP4430 appears to be "active". And could you share your thoughts as to why OMAP5 would not be an option for the next Google Glass?

http://www.ti.com/lsds/ti/omap-applications-processors/omap-4-processors-products.page

 

yourforum
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Re: OMAP4430
yourforum   5/6/2014 12:31:23 PM
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I have not seen mention of OMAP4 being EOL neither. Would be interesting to know what make you think the device is obsolete/EOL?

 

Joel-Teardown
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Re: OMAP4430
Joel-Teardown   5/6/2014 1:18:47 PM
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The TI OMAP5 is an option for the next generation Glass, but the competition is very strong and would likely desire to displace TI in Glass.  In a November 14, 2012 article entitled, "TI cuts 1,700 jobs in OMAP shift", EETimes reported that TI were re-targeting their OMAP R&D away from mobile computing and towards embedded systems.  So, depending on how one sees the Glass, one could draw different conclusions.  Of course, it is up to Google to make that call. 

We first saw the OMAP4430 in devices starting in 2011.  While it has had a long life, there are currently far superior options available for new development work.

Joel-Teardown
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Re: GPS?
Joel-Teardown   5/6/2014 1:19:17 PM
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For the GPS receiver, we can confirm that the parts are physically present in Glass.  As for their function, we can only speculate at this time.

DeeCee430
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Re: GPS?
DeeCee430   5/6/2014 2:25:37 PM
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The second picture refers to the CSR chip as a "GPS Transceiver" -- it's a receiver, not a transceiver.  (It might seem picky, but it's amazing how many people think that the GPS chip in their smartphone transmits signals to the GPS satellites.)



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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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