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    Smartphones with Touch Free Touch Screens

    Smartphones with Touch Free Touch Screens

    —Nowadays just about any smartphone features a touchscreen. Touchscreen technology has also improved greatly over recent times. Resolutions have improved, as have sensitivities, and all the smartphone manufacturers have striven to respond to the wishes of their customers in order to improve the touchscreen user interface. However, a completely new kind of touchscreen is just around the corner and this is the touch free touchscreen.

    If a touchscreen that you don’t have to touch sounds inconsistent, then we should explain that we don’t mean that the user still operates the phone by gestures of the fingers and thumbs, but no physical contact is involved.

    The phone has infrared light emitting diodes behind the touchscreen and use reflected invisible light to determine the presence and motion of the user’s hands

    The first patent on this new technology was filed by Apple and we can expect to see something like it on future generations of the iPhone. The phone has infrared light emitting diodes behind the touchscreen and use reflected invisible light to determine the presence and motion of the user’s hands.

    Another company has independently produced an alternative technology that responds to sweeping gestures made over the screen. This uses sweeping for turning pages of stored information and for surfing the web and instead of using reflected light, it uses ultrasound. The screen has an invisible array of ultrasound sources and detectors and uses these to detect hand movements.

    In addition to increasing the functionality of smartphones, there are many occasions when sweeping gestures would be preferable to touching, for instance if using your phone with greasy fingers.

    These new touch free screens are still in their infancy and the initial demonstrations of the technology are still only concepts, even the technologists developing are unsure of how they will be used in practice, but it is fairly certain that these will be incorporated into smartphones of the future.

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    Posted 1/12/11

    David Novak
    David Novakhttps://www.gadgetgram.com
    For the last 20 years, David Novak has appeared in newspapers, magazines, radio, and TV around the world, reviewing the latest in consumer technology. His byline has appeared in Popular Science, PC Magazine, USA Today, The Wall Street Journal, Electronic House Magazine, GQ, Men’s Journal, National Geographic, Newsweek, Popular Mechanics, Forbes Technology, Readers Digest, Cosmopolitan Magazine, Glamour Magazine, T3 Technology Magazine, Stuff Magazine, Maxim Magazine, Wired Magazine, Laptop Magazine, Indianapolis Monthly, Indiana Business Journal, Better Homes and Garden, CNET, Engadget, InfoWorld, Information Week, Yahoo Technology and Mobile Magazine. He has also made radio appearances on the The Mark Levin Radio Show, The Laura Ingraham Talk Show, Bob & Tom Show, and the Paul Harvey RadioShow. He’s also made TV appearances on The Today Show and The CBS Morning Show. His nationally syndicated newspaper column called the GadgetGUY, appears in over 100 newspapers around the world each week, where Novak enjoys over 3 million in readership. David is also a contributing writer fro Men’s Journal, GQ, Popular Mechanics, T3 Magazine and Electronic House here in the U.S.

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