Economists viewed his speech as a signal that the ECB would resume its bond-buying program.

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The signal from this speech is that Bernanke will retain an accommodative position.

FORBES: Bernanke: Still Cautious on the Economy

The Adaptive Wireless Engine, as it is called, is a device whose logic cells have been specifically designed to handle signal filtering, speech encoding, wireless communications protocols, and so on in other words, the sorts of things that mobile phones have to do.

ECONOMIST: Hardware goes soft

This led to ideas that Bernanke might signal, during a speech Friday at a Fed symposium in Jackson Hole, Wyo.

FORBES: Gold Market Buoyed By Bernanke's Jackson Hole Remarks; QE Hopes Remain

Joe Weisenthal at Business Insider raises the possibility that Bernanke is being strategic here: even if he is more optimistic than he makes out in the speech, he still wants to signal that the Fed is not about to take its foot off the gas.

FORBES: Bernanke: Still Cautious on the Economy

However much Mr Blair insists that his speech this week signalled no change in policy, it was the signal for the Tory Europhiles to break cover.

ECONOMIST: Britain and the euro

The recent sharp appreciation of the single currency did not "signal a serious overvaluation", Jens Weidmann argued in a speech that came at a time of rising fears the eurozone stands to lose most in a global currency war.

CNN: US Treasury triggers fall in yen

As King works up to the mighty peroration of the greatest American speech of the 20th century, his cadences continue to rise and fall, going higher each time to signal his passion for the subject.

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Within Korea University, the School of Electrical Engineering's Intelligent Signal Processing Lab (ISPL), headed by Professor Ko Hanseok, specializes in both image and speech processing.

CNN: The story

Today, many in the Middle East and North Africa consider the Cairo speech a collection of lofty ideals that lacked sufficient follow-through, and they have been looking for Obama to signal substantive and concrete policies that support the aspirations of the region's people.

CNN: Obama announces 'new chapter' in U.S. Mideast diplomacy