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8:03 AM
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When Sony unveiled the Xperia Sola yesterday, it
was keen to tout its new "floating
touch" technology as a major selling point. Unlike other touchscreen phones,
the Sola can detect when a finger is hovering over the screen, not just when
it's made contact. This, potentially, could present some interesting new ways of
interacting with touchscreens -- for example, the Sola's browser will allow
users to hover their finger over the screen like a cursor when selecting
links.
Today, Sony has gone into more detail about exactly how this
"magical" new technology works, debunking our theory of millions of tiny wizards
living under the screen. On the company's mobile developer blog, engineer Erik
Hellman explains exactly what's involved. Essentially, the Xperia Sola contains
two types of capacitive sensor. There's a mutual-capacitive sensor, used for
multi-touch, and a self-capacitive sensor, which generates a stronger signal,
allowing it to detect conductive objects (like your greasy paws) from further
away. Self-capacitive sensors aren't multi-touch capable, and mutual-capacitive
sensors aren't strong enough to detect objects at a distance, but if you combine
both in a single screen, you get the best of both worlds -- multi-touch when
you're touching the screen, and floating touch when you're not.
We're definitely interested to see what third-party devs can do
when they get hold of this tech. In the meantime, more technical details can be
had over at the source link.
Source: Sony
Developer Blog
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