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IDontUseTheForumSoWhyAmIForc
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re: Apple buys indoor location startup
IDontUseTheForumSoWhyAmIForc   3/28/2013 5:40:06 PM
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This does presume alot. Mainly, that all areas have WiFi hotspots with known fixed GPS locations. Is apple going to provide these hotspots or are they going to rely on the public to provide them? And if it's the public providing them, how do they ensure that the WiFi GPS locations are accurate to begin with? Does this mean we can expect a major announcement of an indoor mapping application for the iphone 8, 9, X or 11? Or maybe it just might make version 7 in another apple mapping boon-doggle. Only time will tell.

selinz
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re: Apple buys indoor location startup
selinz   3/27/2013 6:07:57 PM
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This is a hedged bet that WIFI will become more prominent. When I visit my Dad in a little SoCal town, I purchase a weekend's worth of wifi from the towns built in wifi network. Not only does it enable me to get internet access at Pops, but I can take my device anywhere in town and access it. Presumably, someone believes that triangulation of wifi signals (which Android phones like to do) is subject to IP. Defensive or offensive?



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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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