Direction input device and method for operating user interface using same

Abstract

A direction input device and a method for operating a user interface using the same are disclosed. The direction input device, according to one embodiment of the present invention, comprises: a pad which includes, on one surface thereof, a marked surface having marks with different codes according to each mark, or which is integrated with the marked surface; an optical unit which is physically connected to the pad in the direction of the marked surface of the pad, irradiates the marked surface of the pad with light through a light source, senses light reflected from a predetermined mark on the marked surface through a sensor when a user force is applied, and converts the light into an image signal; and a connecting unit for connecting the pad and the optical unit.

Description

technical field [0001] The following description relates to input devices, and more particularly, to directional input devices. Background technique [0002] Using the input device, the user is able to manipulate objects displayed on the screen of the electronic device. For example, the user can change the position or direction of a mouse pointer displayed on the screen. Examples of input devices include a mouse, joystick, trackball, touchpad, trackpad, and the like. The mouse is the most commonly used input device. However, when using a mouse, the surface is indispensable. Therefore, it is difficult to use the mouse in a mobile environment. Also, since a large surface is required, and using a mouse on a small table is inconvenient, the workspace should be large enough to use the mouse freely. [0003] In a mobile environment, touchpads and trackpads are commonly used. These two devices are convenient to use, but incorrect input may occur due to user's unintentional to...

AI Technical Summary

Problems solved by technology

[0004] Using a joystick or trackball is relatively easy to input directions, but not easy to control the distance moved, so, similar to touch, it is not suitable for precise orientation tasks, such as drawing or performing CAD

[0005] Among conventional devices, joysticks use mechanical operations and simple sensors, and are therefore suitable for detailed input; mice are inconvenient because a flat surface is required or the mouse needs to be lifted and lowered to extend the moving distance; Different degrees of friction between them are difficult to control using precise movements

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