Capacitive screen technology continues to innovate today, but the next phase of natural interaction seems to be to completely get rid of the need for touch screens.
On October 9, according to the Cnet.com website, at the recent high-tech fair in Japan, Elliptic Labs, a manufacturer of ultrasonic contactless gestures in Norway, demonstrated some of the more advanced gesture operation innovations. This technology may be launched in the near future.
Elliptic Labs uses ultrasonic sensors that can emit high-frequency sounds that cannot be heard by ordinary people, but the machine can detect the three-dimensional position of the gesture by calculating the speed and frequency of the user's hand moving in front of the screen. Elliptic Labs has also added some custom software to enable it to recognize the user's gestures in the air and control the operation of the device.
At the 2013 International Consumer Electronics Show (CES), this technology was successfully demonstrated on a laptop running Windows 8 system. This demonstration is on a mobile device such as the Samsung Galaxy S4, but because the phone does not have the necessary ultrasonic sensors built into the Elliptic system to operate smoothly, the researchers used a shell device for conversion. This shell device is also a developer toolkit that can be used to help develop applications for the Elliptic system.
Elliptic's latest system not only detects the hands and fingers in front of the screen, but also detects the distance between the hands and the screen. Therefore, the system can recognize gestures that move up and down and inward.
It is understood that Elliptic also showed some other gesture operations. For example, when the user's hand is relatively far away from the screen, a tool for locking the screen on the mobile phone displays the schedule; when the user has not made an unlocked gesture and the hand is closer to the screen, the screen shows the mail application. In addition, the user can easily lock the screen by tapping the air twice or by waving his hands to browse the photo gallery.
The concept of this ultrasonic non-contact gesture technology is no different from the somatosensory control or other similar technologies, but it will have great potential in combination with smart phones or smart watches. The areas in which interactive operation can be realized are not limited to devices such as mobile phones and watches. Even if the gesture is extended to 180 degrees or the user operates with gloves, the system can operate normally.
It is reported that the technology uses a built-in sensor area of ​​only 5.2 square millimeters, and its energy consumption is less than 1 milliwatt, which means that the size of the mobile phone installed system does not have to be too large, but it will not consume too much power, which for mobile devices It is easier for manufacturers to accept.
The problem today is when mobile device manufacturers will actually adopt this technology. Laila Danielsen, CEO of Elliptic Labs, did not reveal any details, but she once said that the company has authorized more than one mobile device manufacturer, and that smart phones and tablets equipped with the system will be available in 2015. Windows system will continue to support this technology, and Android system or will greatly promote the popularity of the technology
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