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waaromikke
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Please don't touch
waaromikke   4/16/2014 6:19:25 AM
When I drive I want to control my radio, aircon, etc. without looking. I do not like touchscreens. What is the added value of such an interface? I hope ergonomics are more important than eye candy.

I do like the HUD. My almost ten year old BMW has a HUD that shows speed, navigation and warning messages. Until I had a HUD I never knew what I was missing. It helps to focus on the road.

So adding HUD and touchscreens seems a bit opposite.

DrQuine
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Determining depth of water ahead
DrQuine   5/23/2014 2:01:47 PM
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Sonar would be an obvious means to determine depth of the water ahead regardless of the water opacity. Once the front end touches water, an underwater sonor depth finder could detect and display the water depth ahead.



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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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