Using touchscreen by pointing means

Abstract

A method for selecting a function on a touchscreen. At least one element is displayed on the screen for providing a function. The function is arranged to be executed in response to activating the element. A cursor comprising a handle part and a pointing part is arranged to be shown on the screen. The handle part of the cursor is arranged substantially at a point on the screen indicated by a user such that the pointing part resides on the screen substantially at a different point than the indicated point. The element indicated by the pointing part is activated in response to the user selecting the element.

Description

FIELD OF THE INVENTION [0001] The invention relates to using small, portable devices comprising a touchscreen by a pointing means, and particularly to using such a device single-handedly. BACKGROUND OF THE INVENTION [0002] The screens in computers used in public places, such as in ticket vending machines, are usually touchscreens. Selections are typically made using a finger as a pointing means. Such screens are large, so the buttons and other elements to be activated can also readily be large enough. Furthermore, applications often enable selections to be easily made between only a few alternatives, and usually no text, for example, needs to be entered either. [0003] Touchscreens are often utilized in portable PDA (Personal Digital Assistant) devices that are becoming increasingly popular. Since most functions can also be implemented through keys modelled on a screen, a touchscreen substantially reduces the number of necessary mechanical keys. Consequently, such devices become smal...

AI Technical Summary

Benefits of technology

This solution enhances pointing accuracy and speed by allowing users to select small elements on touchscreens with their finger, reducing errors and enabling one-handed use of small devices.

Problems solved by technology

Consequently, such devices become smaller.

This is a problem when a touchscreen requires a stylus to be used as the pointing means.

It can be inconvenient and too time-consuming to extract a stylus from its storage slot in order to execute minor functions.

Sometimes the small stylus may also be lost.

A finger is an extremely inaccurate pointing means since it completely covers a target to be selected and important information around the target as well.

In such a case, the user cannot be sure as to which elements he or she is pointing at.

The pointer moves to a different point than assumed and desired by the user, and this makes the device slower to use, or may result in pointing and selecting incorrect targets.

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