A keyboard with partial virtual laser key positions

Abstract

The present invention discloses a keyboard with partial virtual laser key positions, including a keyboard body, the keyboard body including a keyboard upper cover, a circuit board, a bottom plate and a virtual laser keyboard assembly; the virtual laser keyboard assembly includes a linear motor projection module, a straight infrared transmitter and a CMOS sensor; the linear motor, the projection module, the straight infrared transmitter and the CMOS sensor are arranged on the same side of the circuit board; when some functions of the virtual keyboard are needed, the virtual keyboard switch is pressed, and the projection module projects the keyboard image on the interface on the right side of the keyboard body, and when the finger interacts with a certain key position on the interface, the reflected light will be captured by the CMOS sensor, thereby identifying the input key position, and the linear motor will give feedback to each action by generating vibration. The present invention has a simple structure, is convenient and practical, makes the product more portable and miniaturized, and has the functions of all complete key positions.

Description

Technical Field

[0001] The invention belongs to the technical field of keyboards, and in particular relates to a keyboard with partial virtual laser key positions. Background Art

[0002] In order to meet the needs of portability, practicality and personalization, keyboard products on the market generally reduce the number of keys outside the main functional area. Although the lack of some keys can be compensated by key combinations, it is still not as convenient and quick as a full-key keyboard. Portability and functionality cannot be taken into account at the same time. In order to improve portability, some keys can only be removed to reduce practical functions, and vice versa.

[0003] The virtual laser keyboard uses light projection technology to project a virtual keyboard on almost any plane. The applicability technology of the virtual keyboard studies the user's finger movements and decodes and records the keyboard strokes. By adding a virtual laser keyboard to replace the keys outside the main key area, it can meet the needs of portability, practicality, and personalization while providing users with a convenient and fast operation experience of all keys. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a keyboard with partial virtual laser keys. The present invention replaces some keys outside the main key area with laser projection, uses a linear motor to simulate tactile feedback, and adjusts the projection intensity according to the ambient light intensity to make the user's visual experience more comfortable.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] A keyboard with partial virtual laser key positions, comprising a keyboard body, wherein the keyboard body comprises a keyboard upper cover, a circuit board, a bottom plate and a virtual laser keyboard assembly; a plurality of keyboard keys are embedded on the surface of the keyboard upper cover, and the circuit board is located in a cavity between the keyboard upper cover and the bottom plate;

[0007] The virtual laser keyboard assembly includes a linear motor, a projection module, a straight infrared transmitter and a CMOS sensor; the linear motor, the projection module and the CMOS sensor are arranged in sequence on the upper part of one side of the circuit board, and the straight infrared transmitter is arranged on the lower part of the same side of the circuit board. Correspondingly, a projection module hole, a straight infrared transmitter hole and a CMOS sensor hole are opened on the side of the keyboard upper cover, and a photosensitive hole is opened on the upper surface of the keyboard upper cover; a virtual keyboard switch for controlling the on and off state of the virtual laser keyboard assembly is arranged on the upper surface of the keyboard upper cover;

[0008] When some functions of the virtual keyboard are needed, press the virtual keyboard switch, and the projection module projects the keyboard image onto the plane on the side of the keyboard body to form a projection surface. A straight-line infrared transmitter emits an infrared light plane covering the projection surface 2 to 3 mm above the projection surface; when a finger interacts with a key on the interface, the reflected infrared light will be captured by the CMOS sensor, and the position information of the pressed key will be passed to the circuit part for processing, thereby identifying the input key. At the same time, the linear motor gives feedback to each action by generating vibration.

[0009] Furthermore, the virtual laser keyboard assembly also includes a photosensitive module, which automatically adjusts the projection light according to the intensity of the ambient light. The photosensitive module is arranged on the upper side of one side of the circuit board, behind the CMOS sensor.

[0010] Furthermore, the physical key area on the surface of the keyboard cover includes a main key area, a function area and an editing key area, and the virtual key area projected by the projection module is a numeric key area.

[0011] Furthermore, the physical key area on the keyboard cover surface is the main key area and the function area, and the virtual key area projected by the projection module is the editing key area and the numeric key area.

[0012] Furthermore, the physical key area on the upper cover surface of the keyboard is the main key area and the function area, and the virtual key area projected by the projection module is the editing key area and / or the numeric key area. By setting a key area selection key on the upper cover surface of the keyboard, the editing key area and the numeric key area can be switched to display, or the editing key area and the numeric key area can be displayed at the same time.

[0013] Furthermore, the physical key area on the keyboard cover surface is only the main key area, and the virtual key area projected by the projection module is only the numeric key area.

[0014] Beneficial effects: The present invention has a simple structure, is convenient and practical, makes the product more portable and miniaturized, has the functions of all complete key positions, and can activate the virtual mouse function when there is no mouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural exploded diagram of the present invention;

[0016] Figure 2 is a logic block diagram of the virtual laser keyboard component of the present invention;

[0017] Figure 3 Schematic diagram of the distribution of the physical key area and the virtual key area in Example 1 of the present invention;

[0018] Figure 4 Schematic diagram of the distribution of the physical key area and the virtual key area in Example 2 of the present invention;

[0019] Figure 5 Schematic diagram of the distribution of the physical key area and the virtual key area in Example 3 of the present invention;

[0020] Figure 6 Schematic diagram of the distribution of the physical key area and the virtual key area in Example 4 of the present invention.

[0021] In the figure, 1-keyboard body, 2-keyboard upper cover, 3-circuit board, 4-bottom plate, 5-virtual laser keyboard assembly, 6-linear motor, 7-projection module, 8-infrared transmitter, 9-CMOS sensor, 10-photosensitive module, 11-virtual keyboard switch, 12-projection module hole, 13-infrared transmitter hole, 14-CMOS sensor hole, 15-photosensitive hole, 16-key area selection key. DETAILED DESCRIPTION

[0022] The present invention is described below with reference to specific examples. It will be appreciated by those skilled in the art that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention in any way.

[0023] Example 1

[0024] A keyboard with some virtual laser keys, such as Figure 1 As shown, the keyboard body 1 includes a keyboard upper cover 2, a circuit board 3, a bottom plate 4 and a virtual laser keyboard assembly 5; a plurality of keyboard keys are embedded on the surface of the keyboard upper cover 2, and the circuit board 3 is located in a cavity between the keyboard upper cover 2 and the bottom plate 4;

[0025] The virtual laser keyboard assembly 5 includes a linear motor 6, a projection module 7, a straight infrared transmitter 8, a CMOS sensor 9 and a photosensitive module 10; the linear motor 6, the projection module 7, the CMOS sensor 9 and the photosensitive module 10 are arranged in sequence on the upper right side of the circuit board 3, and the straight infrared transmitter 8 is arranged on the lower right side of the circuit board 3. Correspondingly, a projection module hole 12, a straight infrared transmitter hole 13 and a CMOS sensor hole 14 are opened on the right side of the keyboard cover 2, and a photosensitive hole 15 is opened on the upper surface of the keyboard cover 2; a virtual keyboard switch 11 for controlling the on and off state of the virtual laser keyboard assembly 5 is arranged on the left side of the upper surface of the keyboard cover 2; Figure 2As shown, when some functions of the virtual keyboard are needed, press the virtual keyboard switch, and the projection module projects the keyboard image onto the interface on the right side of the keyboard body 1 to form a projection surface. An infrared transmitter emits an infrared light plane covering the projection surface 2 to 3 mm above the projection surface. When a finger interacts with a key on the interface, the reflected infrared light will be captured by the CMOS sensor, and the position information of the pressed key will be passed to the circuit part for processing, thereby identifying the input key. At the same time, the linear motor generates vibrations to give feedback to each action. The photosensitive module automatically adjusts the projection light according to the ambient light intensity. Figure 3 In this embodiment, the physical key area on the surface of the keyboard cover 2 includes a main key area, a function area and an editing key area, and the virtual key area projected by the projection module is a numeric key area.

[0026] Example 2

[0027] like Figure 4 As shown, a keyboard with partial virtual laser key positions is provided. Based on Example 1, the physical key position area on the keyboard cover surface is the main key area and the function area, and the virtual key position area projected by the projection module is the editing key area and the numeric key area.

[0028] Example 3

[0029] like Figure 5 As shown, a keyboard with partial virtual laser key positions, based on Example 2, the physical key position area on the surface of the keyboard cover is the main key area and the function area, the virtual key position area projected by the projection module is the editing key area and / or the numeric key area, and the editing key area and the numeric key area are switched to display by setting a key area selection key 16 on the surface of the keyboard cover, or the editing key area and the numeric key area are displayed at the same time.

[0030] Example 4

[0031] like Figure 6 As shown, a keyboard with partial virtual laser key positions, relative to embodiment 1, the physical key position area on the keyboard cover surface is only the main key area, and the virtual key position area projected by the projection module is only the numeric key area.

Claims

1. A keyboard with partial virtual laser key positions, characterized in that: The keyboard body includes a keyboard upper cover, a circuit board, a bottom plate and a virtual laser keyboard assembly; a plurality of keyboard keys are embedded on the surface of the keyboard upper cover, and the circuit board is located in a cavity between the keyboard upper cover and the bottom plate; The virtual laser keyboard assembly includes a linear motor, a projection module, a straight infrared transmitter and a CMOS sensor; the linear motor, the projection module, the straight infrared transmitter and the CMOS sensor are sequentially arranged on the upper part of one side of the circuit board, and the straight infrared transmitter is arranged on the lower part of the same side of the circuit board. Correspondingly, a projection module hole, a straight infrared transmitter hole and a CMOS sensor hole are opened on the side of the keyboard upper cover, and a photosensitive hole is opened on the upper surface of the keyboard upper cover; a virtual keyboard switch for controlling the on and off state of the virtual laser keyboard assembly is arranged on the upper surface of the keyboard upper cover; When some functions of the virtual keyboard are needed, press the virtual keyboard switch, and the projection module projects the keyboard image onto the plane on the side of the keyboard body to form a projection surface. A straight-line infrared transmitter emits an infrared light plane covering the projection surface 2 to 3 mm above the projection surface; when the finger interacts with a key on the interface, the reflected infrared light will be captured by the CMOS sensor, and the position information of the pressed key will be passed to the circuit part for processing, thereby identifying the input key. At the same time, the linear motor provides feedback to each action by generating vibration.

2. The keyboard with partial virtual laser key positions as claimed in claim 1, characterized in that: The virtual laser keyboard assembly also includes a photosensitive module, which automatically adjusts the projection light according to the intensity of the ambient light. The photosensitive module is arranged on the upper side of one side of the circuit board and is located behind the CMOS sensor.

3. The keyboard with partial virtual laser key positions as claimed in claim 1, characterized in that: The physical key area on the surface of the keyboard cover includes a main key area, a function area and an editing key area, and the virtual key area projected by the projection module is a numeric key area.

4. The keyboard with partial virtual laser key positions as claimed in claim 1, characterized in that: The physical key area on the keyboard cover surface is the main key area and the function area, and the virtual key area projected by the projection module is the editing key area and the numeric key area.

5. The keyboard with partial virtual laser key positions as claimed in claim 1, characterized in that: The physical key area on the upper cover surface of the keyboard is the main key area and the function area, and the virtual key area projected by the projection module is the editing key area and / or the numeric key area. The editing key area and the numeric key area are switched to be displayed by setting a key area selection key on the upper cover surface of the keyboard, or the editing key area and the numeric key area are displayed at the same time.

6. The keyboard with partial virtual laser key positions as claimed in claim 1, characterized in that: The physical key area on the keyboard cover surface is only the main key area, and the virtual key area projected by the projection module is only the numeric key area.

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