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An Intuitionistic Method of Cursor Positioning on Mobile Device Disclosure Number: IPCOM000239628D
Publication Date: 2014-Nov-20
Document File: 8 page(s) / 281K

Publishing Venue

The Prior Art Database


Disclosed is a method to enable the user to move the cursor to an expectant position intuitively on mobile device through enlarging partial of the screen before the user's finger touches the screen. Moreover, the enlarged target area is editable, enabling the user to complete cursor movement and text selection more easily and accurately.

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An Intuitionistic Method of Cursor Positioning on Mobile Device



.. Background


Text editing on mobile device becomes more and more frequent. Currently, it is inconvenience to perform cursor positioning and text selection on mobile device's touch screen. In addition, words are positioned very close to each other on the touch screen, the text area is so compact that it is difficult to achieve precise cursor placement, text selection and edit control. On mobile device, the most common cursor positioning is performed by touching the screen directly. However, when moving the cursor directly by touching the screen, the user's finger would cover several characters, it is difficult for the user to move the cursor to a specific position accurately, especially on a small size mobile screen.

To resolve this problem, one implemented solution is to use a virtual "magnifying glass" on the screen. The approach is to display a magnifying glass which increases the text size within the touching area when the user's finger touches the screen and holds for a while. Using the magnifying glass helps the user to position the cursor more precisely, but the user can not release finger from the screen before completing the cursor movement. The user has to move the cursor with a finger touching the screen, it prevents the user from flicking the finger casually during text editing.

To facilitate cursor positioning and text editing on mobile device, a more convenient method of moving the cursor to a desired position is required.



.. Summary of Invention

Summary of Invention

Summary of Invention:


To resolve the issue described above, this disclosure proposes a method to enable user to move the cursor to an expectant position more easily and intuitively by enlarging partial of the screen. Actually, before the user's finger touches the screen, the user's approaching finger is sensed. Then the surrounding area zooms in from the point to be touched (called " approaching point") on the screen, enabling the user to select the cursor position within the enlarged partial area by tapping on the screen.

The corresponding area is enlarged according to the finger movement. When the cursor positioning is completed and the user's finger leaves the sensing area, the enlarged partial area zooms out. And when the user casually flicks a finger to other part of the edit area, the surrounding area is magnified correspondingly.

The process described above is illustrated by the following five figures.


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The advantages of this apparatus are summarized as follows:

1. Enhances the usability and accuracyof cursor positioning on mobile device. The magnified partial area enables the user to move the cursor to a specific position more easily and precisely.

2. Enhances the flexibilityof text editing on mobile device. The approaching finger is sensed, enabling the user to flick the finger casually without touching the screen...