cell phone jammer integrates the wireless infra-red technology

cell phone jammer  integrates the wireless infra-red technology
The advantages of rear projection screens viewers will not stand block projection light, will not result in the image on the shadow drive large-screen projection display of the computer system there are mainly two: one is the SG I workstation, the other is the computer group SG I work. workstations with a shared storage device , computing power, allowing developers to display the application simple and fast the drawback is the equipment expensive. cell phone jammer  integrates the wireless infra-red technology. (total 46) Interactive Information wall technology (Zhou, etc.) and can be expanded to 339 drives display a limited number of channels by computer group consisting of display drive system has the advantage of relatively cheap, unlimited expansion-driven display channel. drawback is that data must be shared through the network to make application development complexity, processing speed will be slower. 1.2 new human-computer interaction since the emergence of large-screen display technology, the traditional human-computer interaction can not meet people's needs on the big screen in front of people. cell phone jammer  integrates the wireless radio frequency technology. They want to be able to easily and naturally shown to interact with the content of the interaction of these new way when the screen according to the need for human-computer interaction. be divided into contact and contact with non-contact two categories 1. 2.1-contact-contact interaction is the main mode of use of various types of touch screen. touch screen and the touch detection unit controller of two parts: the touch detection unit installed in the front display screen, used to detect user touch position sensor will accept the signal transmitted to the controller; controller's primary role is the touch point detection device from receiving touch information, and transform it into contact coordinates, and then sent to the CPU for processing; the same time it also receives commands sent from the CPU and run it. works in accordance with its touch screen is divided into resistive, capacitive, infrared-and surface acoustic wave Touch screen 4 categories [10]. resistive touch screen is basically a thin film and glass structure.  cell phone jammer  integrates the cursor control technology.When the touch, the film underlying ITO (indium) will come into contact with the glass top of the ITO, a message came through the sensor, and then from the control device to the computer side, transformed to the screen by the driver on the X, Y values, and click to complete the action, and presented on the screen. The principle is shown in Figure 4 resistive touch screen has the advantage of relatively cheap, not afraid. dust, moisture and oil, you can use any object to touch, more suitable for industrial control and office use; drawback is poor feel and light, easily damaged by sharp objects, life is not long. capacitive touch screen is a four composite glass screen, glass screen and the inner surface of each coated with a layer of laminated ITO, the outermost layer is only 0. 001 5 mm thick silica glass oxide, ITO coating as a sandwich face, leads to the four corners four electrodes, the inner layer of ITO as a shield to ensure a good working environment when the user capacitive touch screen, because the body electric, the user's fingers to the work surface to form a coupling capacitor, because the work surface connected with high-frequency signal. cell phone jammer  integrates the wireless mouse technology.