We have seen a lot of ideas in order to attach to a portable Bluetooth keyboards are compact and yet are frustratingly tiny size – they include devices offering something like virtual keys, projected onto the working surface, devices that are turned off, and they can actually be folded. But keyboard Moky, however, shows a different approach. This device saves space that allows its area of the keyboard to function as an additional multi-touch panel.
According to a press release of the Seoul Moky, the device uses “laser sensors IR” to impose an invisible touch panel over the keyboard. This allows users to perform actions such as click / drag and drop, scrolling, strong pressing, clamping and increase the field of view by simply making the traditional movement of the finger when possible, swipe your finger directly on the keys.
Although so far there is no clear information about how the system works, but the principle seems to be the same as that used “Continental infrared curtain” technology for multi-touch screens in cars. In this case, the rectangular frame around the display is a set of LEDs along the two adjacent sides and a series of photodiodes along the other two. Each LED emits by the beam of infrared light which is received and converted into an electrical signal using a photodiode located at the appropriate spot on the opposite side of the frame.
When the user reaches hand field grid beams of infrared light in this arrangement, the finger blocks some of the beams. Photodiodes those rays temporarily stop receiving the response, and thus cease to send a signal. Analyzing the combination of photodiodes raised, the system can determine the location of the finger of the user as to what is displayed in real time.