Most of the research presented in the field of mobile phone based interaction techniques that have been developed so far falls into three main classes according to Sas & Dix [21]. In some research, the personal device effectively acts as an extended input device for text editing or pointing tasks. In others, the phone is used to upload and download media using standard content and protocols. The third class is where the mobile phone is an integral part of the interaction, typically using the device screen in concert with the public screen. Ballagas et al [7] present a survey of existing interaction techniques that use mobile phones as a pointing device. Alongside the survey, they present an analysis of these techniques based on the following taxonomy: position, orient, select, trace, quantify and text. The study concludes that the mobile phone is a suitable device for positioning tasks in various ways, especially during interactions. with public display in a ubiquitous environment. Below we present some studies based on the Sas & Dix classification [21]. The mobile phone as a pointing instrument: As a field of research, several studies use image processing and visual recognition as a basis in their interaction technique, since most smart phones and wearable devices are equipped with a digital camera. Jiang et al [1] attempted to take advantage of this fact by proposing a study aimed at interacting with the display via the camera of a mobile device. This method uses the cursor position on the screen as the basic input source. The presented systems depend on a closed feedback loop between the wearable device and the display to provide continuous visual feedback. This closed loop begins with the presentation of the cursor on the screen. Then, the...... middle of paper ......sts of three units: the Symbian client application running on the mobile phone. The role of this unit is to allow users to select a track from the list presented on the phone screen. The second unit is the server application running on a PC that counts the votes of all users of the client unit. The last is a large public screen that acts as the main user interface displaying the track listing and their votes. Kaviani et al [13] propose a new user interface concept that takes advantage of the input and output capabilities of the public large screen and mobile phone. . They call this interface mode "dual display", which allows users to run multimedia user interfaces on both large and small display types. By moving parts of a user interface to a personal mobile device, a number of problems stemming from the limitations of large screens can be resolved..