Laser projection keyboard and implementation method thereof

A technology of laser projection and implementation method, which is applied in the fields of instruments, computing, and electrical digital data processing, etc., which can solve the problem of no feedback on laser projection keyboard input, and achieve the effect of improving user experience

Active Publication Date: 2018-06-12
GUARD BIRD (SHENZHEN) QIANHAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a laser projection keyboard and its implementation method. On the one hand, it can solve the problem that the existing laser projec

Method used

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  • Laser projection keyboard and implementation method thereof
  • Laser projection keyboard and implementation method thereof
  • Laser projection keyboard and implementation method thereof

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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] The embodiments of the present invention will be described below with reference to the drawings. See figure 1 , Is a flowchart of a method for implementing a laser projection keyboard in an embodiment of the present invention, including:

[0032] Step S101: start;

[0033] Step S102: detecting the light reflection signal formed when the finger hits the virtual keyboard area projected by the keyboard projection module;

[0034] S103: D...

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Abstract

The invention discloses an implementation method of a laser projection keyboard. The method is characterized by including: detecting light reflecting signals generated when fingers tap a projected virtual keyboard area; judging whether the lasting time of the light reflecting signals is in a preset value range or not; if so, identifying the position information of positions tapped by the fingers according to the light reflecting signals so as to identify corresponding input. In addition, the invention further discloses the laser projection keyboard. By the implementation method and the laser projection keyboard, when the fingers are placed on the key area of the keyboard for a rest when keyboard input is not performed, mistaken identification of the laser keyboard is avoided, and the situation that other areas cannot be used to perform input is avoided.

Description

technical field [0001] The invention relates to the field of virtual keyboards, in particular to a laser projection keyboard and a realization method thereof. Background technique [0002] With the popularization of devices such as mobile phones and tablet computers, projection keyboards have attracted more and more attention as a portable and novel input device. However, current projection keyboards leave much to be desired. For example, in the current projection keyboard, the infrared rays emitted by it cannot be completely close to the projected keyboard, so the user's fingers must be suspended in the air, otherwise the infrared rays will be blocked and it will be judged to be inputting characters. However, when we use a physical keyboard, our fingers often rest on the keyboard so that we don’t need to reposition each time. If the fingers are suspended above the keyboard, it is basically impossible to perform touch typing, which greatly reduces the user’s typing speed; ...

Claims

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Application Information

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IPC IPC(8): G06F3/02G06F3/042
CPCG06F3/0202G06F3/0428
Inventor 郝宏贤
Owner GUARD BIRD (SHENZHEN) QIANHAI TECH CO LTD
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