Video frequency device, display method, record method and reproducing method.

视频装置，显示方法，记录方法和再现方法。

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SAW filter as the key high-frequency device has become of more and more importance.

SAW滤波器作为关键的高频器件。已变得越来越重要。

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Similarly, another company had developed an RF frequency device and that also didn't work very well.

相似地，另一家公司开发的射频装置效果也不是很好。

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The engineers found a way to kick-start a radio-frequency device wirelessly using an external power source initially, but running the device afterward on the output of power generated by the inner ear.

WSJ: Harnessing Energy From the Body to Power Devices

In a study published in 2006, researchers at Carnegie Mellon University who rode 37 airline flights with a radio-frequency measuring device found emissions from cellphones that could interfere with global-positioning satellite systems.

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It works by jamming all nearby transmissions at the operating frequency of the medical device, except for those signals that were authorized to use the device.

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