Projection keyboard and character code determining method of projection keyboard

A technology of character encoding and projection keyboard, which is applied in the computer field, can solve problems such as character recognition errors, and achieve the effect of high character recognition accuracy

Active Publication Date: 2013-10-02
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the projected keyboard determines the user's typing position based on the image of the reflected light, it is very easy to cause character recognition errors due to image errors

Method used

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  • Projection keyboard and character code determining method of projection keyboard
  • Projection keyboard and character code determining method of projection keyboard

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Embodiment Construction

[0018] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0019] Such as figure 1 As shown in FIG. 1 , it is a schematic structural diagram of the projection keyboard provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the projection keyboard described in the first embodiment is provided with an optical sensor 1 , at least one attitude monitor 2 and a character code determination device 3...

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Abstract

The invention provides a projection keyboard and a character code determining method of the projection keyboard. The projection keyboard is provided with an optical sensor, at least one attitude monitor and a character code determining device, wherein the optical sensor is used for sensing typing positions according to reflected light rays when a user types press keys on the projection keyboard, and generating position information, the position information include coordinates, the attitude monitor is used for monitoring the attitudes of fingers when the user types the press keys, and generating attitude monitoring information, the attitude monitoring information include attitude monitor labels and attitude parameter information, the character code determining device is used for obtaining the position information and the attitude monitoring information, determining a first character code according to the coordinates, generating a second character code according to the labels and the attitude parameter information, and comparing if the first character code is the same as the second character code or not, and if the first character code is the same as the second character code, the first character code is sent to display equipment. Compared with the prior art, the character identifying accuracy is higher.

Description

technical field [0001] The invention relates to computer technology, in particular to a projection keyboard and a method for determining character codes of the projection keyboard. Background technique [0002] With the rapid development of science and technology, people have higher requirements for tool comfort and convenience. The emergence of the projection keyboard effectively solves the problem that the existing physical keyboard is bulky and inconvenient to carry. [0003] The projection keyboard uses a red diode laser to project the same keyboard pattern as the physical keyboard on the plane, and then uses invisible infrared light to monitor the position where the user hits the key, that is, when the user hits a certain key on the pattern, it will shoot to that position The infrared light at the position is blocked, and the optical sensor of the projection keyboard will receive the reflected light of the infrared light. The optical sensor determines the position whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/023
Inventor 胡昌玮杨贝斯李珩
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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