Aiming at actual instance that the frequency of electric network is waving, based on twin-T resistance-capacitance active-trap filter, a trap filter which can filter the power interference between 49.

针对电网频率波动的实际情况，基于双t型阻容有源陷波电路，设计了可以滤除频带在49。

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So it's a fair bet he won't be waving an England flag as Roy Hodgson's men begin their European Championship campaign.

BBC: Ed Miliband says you can be both Welsh and British

But while Peter Robinson told delegates at his annual conference at La Mon Hotel that he's ready to abandon "out-dated dogmas", his party faithful aren't abandoning their old flag waving traditions.

BBC: The Robinson strategy to widen DUP appeal

Of course, there's no guaranteeing Apple's actually going to use any of this in any future products whatsoever, but we're sure that won't stop some analyst from waving their magic analyst wand and saying their "supply checks" have indicated a major ODM is already producing these.

ENGADGET: Apple gets a patent on smart screen bezels