| 摘要 |
PURPOSE: An input device and a method of detecting user input with an input device are provided to allow the flexible adjustment of parameters in an ergonomic manner, enable a precise adjustment of parameters, and inform a user of which parameter is currently being adjusted. CONSTITUTION: An input device(100) comprises a multi-touch sensing display(101) and two mechanical control elements in the form of two rotary knobs(102,103). These are fixedly mounted to the surface(104) of the multi-touch sensing display. Below the surface, the multi-touch sensing display comprises an array of optical sensors or photosensitive elements shown as a line(105). In addition, the multi-touch sensing display comprise a TFT(Thin Film Transistor) LCD(Liquid Crystal Display). The light emitted by the multi-touch sensing display is absorbed, scattered, or reflected by trigger elements(106,107). If one of the control elements is actuated by turning, the intensity of light reflected onto photosensitive elements located underneath the trigger element at the previous and the new position of the trigger element changes, thereby generating an input event. Such an input event can be detected by the multi-touch sensing display in the form of a change of a photocurrent or a change of a current through the photosensitive elements. A processing unit(108) interfaces the multi-touch sensing display. The processing unit provides both the display signal to the multi-touch sensing display and reads out the array of photosensitive elements of the multi-touch sensing display. |
