The changing colours are transmitted through the optical fibres to a camera, and thence fed into a neural net for analysis.

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The idea is that by using a wireless connection to the internet, the device can be a handy camera which makes use of translation resources on the net.

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Olympus's net loss narrowed as a weaker yen boosted the value of its foreign-currency assets, though soft digital-camera sales still hurt its bottom line.

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