Display system of virtual keyboard and realization method thereof
A virtual keyboard and display system technology, applied in the input/output process of data processing, optics, instruments, etc., can solve the problems of large display space, expensive touch screen, occupation, etc.
Inactive Publication Date: 2011-04-20
NANTONG DONGFANG SCI & TECH
View PDF0 Cites 18 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since the virtual keyboard needs to occupy a relatively large display space, and when the prior art displays the virtual keyboard on the screen, the size of the virtual keyboard is fixed, the display position is fixed, and the keys of the virtual keyboard are fixed, thereby bringing a lot of inconvenience to the user when operating the mobile terminal. It is inconvenient; moreover, the touch screen is also relatively expensive, which brings a certain cost to the manufacturer
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] figure 1 is a schematic diagram of the projection device of the present invention. A projection device 1 is a square electronic device composed of squares 10 . In other embodiments of the present invention, the projection device 1 may also be in other shapes, such as circles and other polygons. An infrared transmitting and receiving unit 11 is arranged at the vertices of each grid. In other embodiments of the present invention, the infrared transmitting and receiving units 11 may be arranged in other positions of the grid. The infrared transmitting and receiving unit 11 is composed of an infrared transmitting module and an infrared receiving module. The distance between two adjacent infrared transmitting and receiving units 11 is L, and the value of L is greater than a predetermined value, for example, the predetermined value is the width of a finger.
[0012] The projection device 1 projection produces such as figure 2 The virtual keyboard 2 shown. The shape of ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a display system of a virtual keyboard and a realization method thereof. The method comprises the steps of: vertically projecting the virtual keyboard in a plane; transmitting infrared signals to the virtual keyboard and receiving the infrared signals reflected by the virtual keyboard; computing the transmitting and receiving time of each infrared signal in real time; judging whether the transmitting and receiving time of one infrared signal is diminished; obtaining key content information which corresponds to an infrared transmitting and receiving unit for transmitting the infrared signal when the transmitting and receiving time of the one infrared signal is diminished; transmitting a signal containing the key content information; and executing the function which corresponds to key contents or displaying the key contents. The display system of the virtual keyboard projects the virtual keyboard in the plane to facilitate the input operation of a user so that a certain display space is released on a display screen; and the input of some virtual key point on the virtual keyboard can be quickly identified by computing the transmitting and receiving time of the infrared signals.
Description
technical field [0001] The present invention relates to a display system, and more particularly, to a display system of a virtual keyboard and an implementation method thereof. Background technique [0002] With the development of information technology, many display device manufacturers, such as mobile terminal manufacturers, have integrated multiple functions in mobile terminals, such as virtual keyboards, touch screens, etc., to bring convenience to users. The user can input characters through the virtual keyboard displayed on the screen. In most cases, the virtual keyboard is used on the touch screen to achieve the purpose of fast input. However, since the virtual keyboard needs to occupy a relatively large display space, and when the prior art displays the virtual keyboard on the screen, the size of the virtual keyboard is fixed, the display position is fixed, and the keys of the virtual keyboard are fixed, thereby bringing a lot of inconvenience to the user when operat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/048G03B29/00
CPCG06F3/0202G06F3/0426G06F3/04886
Inventor 王奎俊
Owner NANTONG DONGFANG SCI & TECH