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Keyboard error reduction method and apparatus

A symbol string and representative technology, applied in the field of virtual keyboard keys, can solve problems such as parallax alignment errors

Inactive Publication Date: 2006-04-12
MOTOROLA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are many buttons on e.g. a virtual keyboard, parallax and inaccurate alignment can easily lead to a large number of errors during typing

Method used

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  • Keyboard error reduction method and apparatus
  • Keyboard error reduction method and apparatus
  • Keyboard error reduction method and apparatus

Examples

Experimental program
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Embodiment Construction

[0016] In the drawings, like reference numerals on different figures are used to indicate similar elements.

[0017] In short, in a mobile phone with a virtual keypad and a touch screen, each virtual key has its own representative position. During the selection operation, the key is selected, and the place where the touch screen is touched becomes the selected position. The distance between the selected position and the adjacent representative position is used to determine the first set of candidate keys. These candidate keys are then used to provide a set of possible words resulting from input to any of these keys. A list of candidate words is then generated based on the frequency of use of the words in the set of possible words and the distance between the selected location and the location represented by the key. Once a key is confirmed to be selected, the offset between the selected position and the key's representative position is used to recalibrate the representative ...

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Abstract

In a mobile telephone (10) with a virtual keyboard and a touch screen (12), with individual virtual keys (22) having their own representative positions. During a selection operation to select a key (22), where the touch screen is touched becomes the selected position. The distance between the selected position and adjacent representative positions is used to decide a first set of candidate keys. These candidate keys are then used to provide a set of potential words that would result from the input of any one of those keys. A list of candidate words is then produced and displayed on a display area (26) based on the frequency of use of the words in the set of potential words and the distances between the selected position and the representative position of the keys (22). Once a key (22) is confirmed as having been selected, the offset between the selected position and the representative position of that key is used to re-calibrate that representative position.

Description

technical field [0001] The present invention relates to the selection of items displayed on the screen, such as virtual keyboard keys. The present invention is particularly applicable to, but not necessarily limited to, keyboard keys on touch screens, and is intended to help reduce errors in the key selection process. Background technique [0002] A frequently used interface between humans and machines is the display screen. Increasingly, such screens are not only used for one-way communication, but also as a means for the user to input data to the associated device, for example, via a touch screen or using a mouse (or other pointer-oriented selection), etc. [0003] One major room for growth in screen devices is in small portable devices, such as mobile phones, personal digital assistants (PDAs), global positioning system (GPS) navigation, and the like. These all adopt different methods to enter symbols or data, such as through buttons, voice recognition, handwriting reco...

Claims

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Application Information

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IPC IPC(8): G06F3/00G06F3/023G06F3/033G06F3/041G06F3/048
CPCG06F3/04886G06F3/0237G06F3/0418G06F3/04186
Inventor 蔡荣忠
Owner MOTOROLA INC
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