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Portable keyboard and fingerprint feature information extracting method thereof

A fingerprint feature, fingerprint information technology, applied in character and pattern recognition, instrument, calculation and other directions, can solve the problem of input speed and other problems, and achieve the effect of improving input speed

Inactive Publication Date: 2008-03-12
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this invention, as described in its description, solves the technical problem of embedding buttons into some small devices such as mobile phones, personal digital assistants (PDAs), etc., but it cannot solve the problem of input speed

Method used

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  • Portable keyboard and fingerprint feature information extracting method thereof
  • Portable keyboard and fingerprint feature information extracting method thereof
  • Portable keyboard and fingerprint feature information extracting method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0055] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] The basic consideration of this kind of portable keyboard is to obtain the third dimension outside the vertical and horizontal coordinates by identifying different keystroke parts of the user, so that the same key can correspond to multiple characters. The keystroke parts may be different fingers, different parts of fingers, or even palms and different parts thereof. The identification can be by using human's natural physiological characteristics such as fingerprint identification, or by adding identification information to different parts for identification, such as pasting barcodes and magnetic strips on different parts, and drawing characters on fingers, images etc. Depending on the selected identification information, different identification devices are selected accordingly.

[0057] Please refer to Fig. 1, a kind of portable keyboard of ...

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Abstract

The provided portable keyboard integrates finger recognition device to generate corresponding character signal according to contacted key and finger, and needs less keys for larger single-input character set. It also provides an extraction method for characteristic information.

Description

technical field [0001] The invention relates to a portable keyboard, in particular to a portable keyboard which uses finger recognition to realize input. The invention also relates to a fingerprint information extraction method for realizing the finger recognition. Background technique [0002] Currently, most digital devices use a keyboard as an input device. The keyboard originated from the mechanical English letter typewriter at the earliest. The basic pattern of the most commonly used keyboard is the QWERTY keyboard. Due to different use occasions, the keyboard form has various changes, such as ordinary desktop computers, notebook computers, mobile phones, etc., the keyboard form Each has its own characteristics. But its principle is basically the same, that is, take the XY array scanning mode, and determine the character it represents according to the two-digit coordinates of the vertical and horizontal positions of the touched key. The changes are mainly reflected i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/023G06K9/00
Inventor 李众庆
Owner LENOVO (BEIJING) LTD
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