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DrQuine
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re: Freescale magnetometer shrinks e-compass for mobile gear
DrQuine   1/7/2011 3:58:13 PM
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It would seem that the "killer application" would be to combine the magnetometer with an inertial guidance system. The magnetometer could orient the device when the earth's magnetic field is reliably sensed. Motion sensors (accelerometers) and rotation sensors (gyroscopes) would maintain orientation information when the electronic device was moving around an environment which blocked or distorted the magnetic field. Animals have been utilizing redundant orientation systems for millenia.

selinz
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re: Freescale magnetometer shrinks e-compass for mobile gear
selinz   1/5/2011 11:57:21 PM
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This kind of device will soon be in every phone, tablet, and laptop. PLaying with the newest smartphones gives testimony to the utility...



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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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