CN219960618U - Keyboard and keyboard system - Google Patents

Abstract

The utility model discloses a keyboard and a keyboard system, and relates to the field of terminals. The keyboard comprises: the mobile communication device comprises a first communication interface, a mobile communication module and a processor. The first end of the processor is coupled to the mobile communication module, and the second end of the processor is coupled to the data end of the first communication interface, which is also for coupling to the data end of the second communication interface of the electronic device. When the electronic equipment is matched with the keyboard for use, the electronic equipment can communicate with a network and other equipment through the mobile communication module in the keyboard, and the authentication cost when the mobile communication technology supported by the mobile communication module is applied can be reduced.

Description

Keyboard and keyboard system

Technical Field

The utility model relates to the field of terminals, in particular to a keyboard and a keyboard system.

Background

A mobile communication module included in the electronic device enables the electronic device to communicate with a network and other devices. In order to enable the antenna to be built in the electronic equipment without affecting the performance of the antenna, an antenna slot needs to be formed in a metal shell of the electronic equipment by adopting a nano injection molding process (nano molding technology, NMT). Thus, not only is the cost high, but also the space layout of the antenna inside the electronic device is required to be high. Meanwhile, when the mobile communication technology is applied to the electronic equipment, authentication cost needs to be paid. The authentication cost is related to the price of the electronic device, and the higher the price of the electronic device, the higher the authentication cost. This results in higher manufacturing costs of the electronic device.

Disclosure of Invention

The utility model provides a keyboard and a keyboard system, wherein the keyboard comprises a mobile communication module, when the keyboard is matched with electronic equipment, the electronic equipment can communicate with a network and other equipment through the mobile communication module in the keyboard, and the authentication cost when the mobile communication technology supported by the mobile communication module is applied can be reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a keyboard is provided, comprising: the mobile communication device comprises a first communication interface, a mobile communication module and a processor. The first end of the processor is coupled to the mobile communication module, and the second end of the processor is coupled to the data end of the first communication interface. The data side of the first communication interface is further for coupling to a data side of a second communication interface of the electronic device.

When the keyboard provided by the utility model is connected with the electronic equipment, the electronic equipment can communicate with the network and other equipment through the mobile communication module in the keyboard. The price of the keypad is lower than that of the electronic device, so that the authentication cost when the mobile communication technology supported by the mobile communication module is applied can be reduced.

In one possible embodiment, the mobile communication module includes: radio frequency circuitry and an antenna. The first end of the radio frequency circuit is coupled to the antenna and the second end of the radio frequency circuit is coupled to the first end of the processor.

In one possible implementation, the mobile communication module supports fifth generation (5th generation,5G) mobile communication technology. The first communication interface and the second communication interface comprise four data terminals.

When the mobile communication module is a 5G-capable mobile communication module, the maximum transmission rate is 2 gigabits per second (gigabits per second, gbps). To meet the transmission rate requirements, the first communication interface and the second communication interface may be communication interfaces supporting the universal serial bus (universal serial bus, USB) 3.0 protocol. The communication interface supporting the USB 3.0 protocol may include at least four data terminals.

In one possible embodiment, the first communication interface and the second communication interface are pogo pin interfaces. Compared with the traditional interface (such as a USB interface), the spring pin interface has the advantages of long service life, zero-force butt joint, stable adsorption force, capability of bearing vibration and impact, capability of being automatically disconnected when being separated by external force, no damage to a keyboard and electronic equipment and the like.

In one possible embodiment, the keyboard further comprises a keyboard module. The keyboard module is coupled to a first end of the processor. When the electronic equipment is connected with the keyboard, data can be input in the electronic equipment through the keyboard module.

In one possible implementation, the keyboard module includes a matrix keyboard circuit coupled to the first end of the processor. The matrix keyboard circuit occupies less interface resources than the stand-alone keyboard circuit.

In one possible embodiment, the keyboard module includes a sensor for detecting an angle between the electronic device and the keyboard. The sensor is coupled to a first end of the processor.

When the keyboard is connected with the electronic device, the sensor can determine the angle between the keyboard and the electronic device (the angle refers to the included angle between the plane of the screen of the electronic device and the plane of the keys of the keyboard). The processor in the keypad may control the keypad to be in a locked state or an unlocked state depending on the use state of the keypad and the angle. When the angle between the keyboard and the electronic device exceeds a first preset angle (e.g., 180 °), the processor in the keyboard may control the keyboard to be in a locked state. In this way, unnecessary data input in the electronic device due to the fact that the keyboard is touched by mistake can be avoided, and meanwhile, power consumption of the keyboard and the electronic device can be reduced. When the angle between the keyboard and the electronic equipment is larger than a second preset angle (such as 15 degrees) and smaller than the first preset angle, the processor in the keyboard can control the keyboard to be in a working state. At this time, data may be input in the electronic device through the keyboard. When the angle between the keyboard and the electronic equipment is smaller than a second preset angle, the processor in the keyboard can control the keyboard to be in a standby state, and the power consumption of the keyboard can be reduced.

In one possible embodiment, the sensor comprises a hall sensor and/or a gravity sensor.

In a possible embodiment, the keyboard further comprises a support plate, the support plate having a recess, the first communication interface being disposed in the recess, the support plate being configured to carry the electronic device when the first communication interface is coupled to the second communication interface.

In a second aspect, a keyboard system is provided, including an electronic device, and a keyboard according to the first aspect and any implementation manner thereof. The electronic device comprises a second communication interface and the keyboard comprises a first communication interface. The data end of the first communication interface is coupled to the data end of the second communication interface.

The technical effects of the second aspect refer to the technical effects of the first aspect and any of its embodiments and are not repeated here.

Drawings

FIG. 1 is a schematic diagram of a keyboard system according to the prior art;

FIG. 2 is a schematic circuit diagram of a keyboard system according to the prior art;

FIG. 3 is a schematic diagram of a keyboard system according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a keyboard system according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a leather sheath keyboard according to an embodiment of the present utility model;

FIG. 6 is a second schematic diagram of a circuit structure of a keyboard system according to an embodiment of the present utility model;

FIG. 7 is a third schematic circuit diagram of a keyboard system according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present utility model;

FIG. 9 is a second schematic diagram of a RF circuit according to an embodiment of the present utility model;

FIG. 10 is a third schematic diagram of a RF circuit according to an embodiment of the present utility model;

FIG. 11 is a schematic diagram of a keyboard system according to an embodiment of the present utility model;

fig. 12 is a schematic circuit diagram of a keyboard system according to an embodiment of the present utility model.

Detailed Description

Some concepts to which the present utility model relates will be described first.

The terms "first," "second," and the like, in accordance with embodiments of the present utility model, are used solely for the purpose of distinguishing between similar features and not necessarily for the purpose of indicating a relative importance, number, sequence, or the like.

The terms "exemplary" or "such as" and the like, as used in relation to embodiments of the present utility model, are used to denote examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The terms "coupled" and "connected" in accordance with embodiments of the utility model are to be construed broadly, and may refer, for example, to a physical direct connection, or to an indirect connection via electronic devices, such as, for example, electrical resistance, inductance, capacitance, or other electrical devices.

Fig. 1 shows a schematic diagram of a keyboard system according to the prior art. As shown in fig. 1, the keyboard system of the related art includes a keyboard 100 and an electronic device 200. The keyboard 100 may include: a first communication interface 101, a first processor 102, a keyboard module 103, and a first power module 104. Wherein the first communication interface 101 may comprise: a power terminal VCC1, a ground terminal GND1, and a data terminal D1. The power supply terminal VCC1 is coupled to the positive terminal of the first power supply module 104, the ground terminal GND1 is coupled to the negative terminal of the first power supply module 104, and the data terminal D1 is coupled to the second terminal of the first processor 102. A first end of the first processor 102 is coupled to a keyboard module 103. The first power module 104 is further coupled to the keyboard module 103 and the first processor 102 for powering the keyboard module 103 and the first processor 102.

Referring to fig. 1, as shown in fig. 2, an electronic device 200 may include: a second communication interface 201, a second processor 202, a second power module 203, and other load modules 204. Wherein the second communication interface 201 may include: a power terminal VCC2, a ground terminal GND2, and a data terminal D2. The power supply terminal VCC2 is coupled to the positive terminal of the second power supply module 203, the ground terminal GND2 is coupled to the negative terminal of the second power supply module 203, and the data terminal D2 is coupled to the first terminal of the second processor 202. A second end of the second processor 202 is coupled to other load modules 204. The second power supply module 203 is further coupled to the other load modules 204 and the second processor 202 for supplying power to the other load modules 204 and the second processor 202.

Note that, the circuit configuration of the electronic device 200 in fig. 1 may refer to the circuit configuration of the electronic device 200 in fig. 2. That is, the other modules 205 in fig. 1 may include the second processor 202, the second power supply module 203, and the other load modules 204 in fig. 2. Of course, the electronic device 200 may include other devices and modules in addition to those shown in fig. 1 and 2.

When the electronic device 200 is connected to the keyboard 100, the power source VCC2 of the second communication interface 201 is coupled to the power source VCC1 of the first communication interface 101, the ground GND2 of the second communication interface 201 is coupled to the ground GND1 of the first communication interface 101, and the data D2 of the second communication interface 201 is coupled to the data D1 of the first communication interface 101. At this time, data can be input in the electronic device through the keyboard.

Other load modules of the electronic device may include a mobile communication module, such that the electronic device may communicate with a network and other devices through the mobile communication module. In order to embed the antenna in the electronic device and not affect the performance of the antenna, the mobile communication module needs to use an injection molding process (nano molding technology, NMT) to open an antenna slot on a metal casing of the electronic device. Thus, the cost is high, and the space layout of the antenna in the electronic device is required to be high due to the built-in antenna. Meanwhile, since the mobile communication technology supported by the mobile communication module is applied to the device, an authentication fee is required to be paid, and the authentication fee is related to the price of the device. The higher the price of the device, the higher the authentication cost. The price of the electronic device is high compared to the keypad, and thus, when the mobile communication technology supported by the mobile communication module is applied to the electronic device, the authentication cost is high, and thus the cost is also high.

Based on the above problems, the embodiment of the utility model provides a keyboard system, which comprises a keyboard and electronic equipment. The keyboard comprises a mobile communication module. When the keyboard is connected with the electronic device, not only can data be input in the electronic device through the keyboard, but the electronic device can be communicated with a network and other devices through a mobile communication module in the keyboard. Compared with the electronic equipment, the nonmetal shell of the keyboard can not shield signals of the antenna in the mobile communication module, so that an antenna seam is not required to be formed on the shell of the keyboard, the internal space of the keyboard is large enough to accommodate the antenna in the mobile communication module, and the space layout requirement of the antenna in the keyboard can be reduced. Meanwhile, compared with the electronic equipment, the price of the keyboard is lower, so that when the mobile communication module is arranged in the keyboard, the paid authentication cost is lower, and the cost can be reduced.

The electronic device according to the embodiment of the utility model may be mobile or fixed. The electronic device may be deployed on land (e.g., indoor or outdoor, hand-held or vehicle-mounted, etc.), on water (e.g., ship model), or in the air (e.g., drone, etc.). The electronic device may be referred to as a User Equipment (UE), an access terminal, a terminal unit, a subscriber unit (subscriber unit), a terminal station, a Mobile Station (MS), a mobile station, a terminal agent, a terminal apparatus, or the like. For example, the electronic device may be a cell phone, tablet computer, notebook computer, smart bracelet, smart watch, headset, smart sound box, virtual Reality (VR) device, augmented reality (augmented reality, AR) device, terminal in industrial control (industrial control), terminal in unmanned driving (self driving), terminal in remote medical (remote medical), terminal in smart grid (smart grid), terminal in transportation security (transportation safety), terminal in smart city (smart city), terminal in smart home (smart home), etc. The embodiment of the utility model is not limited to the specific type, structure and the like of the electronic equipment.

Referring to fig. 1 and fig. 2, as shown in fig. 3 and fig. 4, a keyboard system according to an embodiment of the present utility model includes a keyboard 100 and an electronic device 200. The keyboard 100 may include: a first communication interface 101, a processor (i.e., a first processor 102), a first power module 104, and a mobile communication module 105. A first end of the first processor 102 is coupled to the mobile communication module 105 and a second end of the first processor 102 is coupled to a data end of the first communication interface 101. The electronic device 200 may comprise a second communication interface 201. The data terminal D1 of the first communication interface 101 is coupled to the data terminal D2 of the second communication interface 201, the power terminal VCC1 of the first communication interface 101 is coupled to the power terminal VCC2 of the second communication interface 201, and the ground terminal GND1 of the first communication interface 101 is coupled to the ground terminal GND2 of the second communication interface 201. In this way, data can be input in the electronic device 200 through the keypad 100, and the electronic device 200 can communicate with a network and other devices through the mobile communication module 105 in the keypad 100.

It should be noted that, the keyboard according to the embodiment of the present utility model may further include other devices and modules besides those shown in fig. 3 and 4.

Optionally, the keyboard related to the embodiment of the utility model may be a leather keyboard. Referring to fig. 3, as shown in fig. 5, the leather keypad 300 may include a base 301, a cover 302 for supporting an electronic device, and a support plate 303 for connecting the base 301 and the cover 302. The cover plate 302 may include a first folding plate 3021 and a second folding plate 3022, where the first folding plate 3021 and the second folding plate 3022 are rotatably connected, and the first folding plate 3021 is connected to the support plate 303. The cover plate 302 may be used to support an electronic device when the angle between the outer surface of the first flap substrate 3021 and the outer surface of the second flap substrate 3022 is acute (not shown in fig. 5). The outer surfaces of the base plate 301, the cover plate 302 and the support plate 303 are all coated with a leather protective layer for prolonging the service life of the keyboard and improving the impact resistance.

Wherein the first processor 102, the first power module 104 and the mobile communication module 105 may be disposed on the base plate 301. The first communication interface 101 is provided in a recess (not shown in fig. 5) of the support plate 303. The support plate 303 is used to carry the electronic device and the cover plate 302 is used to support the electronic device when the second communication interface provided at the electronic device is coupled to the first communication interface 101.

Optionally, the mobile communication module 105 according to the embodiment of the present utility model may support at least one of the fifth generation mobile communication technology, the fourth generation (4th generation,4G) mobile communication technology and the third generation (3rd generation,3G) mobile communication technology, but is not limited thereto.

Optionally, referring to fig. 3 and fig. 4, as shown in fig. 6, the mobile communication module 105 according to an embodiment of the present utility model may include: radio frequency circuitry 1051 and an antenna 1052. A first end of the radio frequency circuit 1051 is coupled to the antenna 1052 and a second end of the radio frequency circuit 1051 is coupled to a first end of the first processor 102. The subscriber identity module 1053 is coupled to a first end of the first processor 102. The first power module 104 is also coupled to the radio frequency circuit 1051 and the subscriber identity module 1053.

Wherein antenna 1052 is used to receive signals and/or transmit signals. The radio frequency circuit 1051 is configured to process a signal received by the antenna 1052 and process a signal to be transmitted and then send the signal out through the antenna 1052.

Optionally, as shown in fig. 7 in conjunction with fig. 6, the mobile communication module 105 may further include a subscriber identity module 1053. The subscriber identity module 1053 may be coupled to a first end of the first processor 102 and to the first power module 104. Subscriber identity module 1053 is configured to receive a subscriber identity module (subscriber identity module, SIM) card. Subscriber identity cards may be used to provide internet traffic.

Referring to fig. 7, as shown in fig. 8, the radio frequency circuit 1051 may include: a radio frequency switch (switch) 106, a duplexer (duplexer) 107, a first filter 108, a second filter 109, a Power Amplifier (PA) 110, a low noise amplifier (low noise amplifier, LNA) 111, a radio frequency transceiver 112, a radio frequency chip 113, a baseband chip 114, and the like.

A first end of the radio frequency switch 106 is coupled to the antenna 1052 and a second end of the radio frequency switch 106 is coupled to a first end of the diplexer 107. A second end of the diplexer 107 is coupled to a first end of a first filter 108 and a first end of a second filter 109. A second end of the first filter 108 is coupled to a first end of the power amplifier 110 and a second end of the second filter 109 is coupled to a first end of the low noise amplifier 111. A second end of the power amplifier 110 and a second end of the low noise amplifier 111 are coupled to a first end of the radio frequency transceiver 112. A second end of the radio frequency transceiver 112 is coupled to a first end of the radio frequency chip 113. A second end of the radio frequency chip 113 is coupled to a first end of the baseband chip 114. A second end of the baseband chip 114 is coupled to a first end of the first processor 102.

The radio frequency circuit according to the embodiment of the utility model may include: radio frequency receiving circuit and radio frequency transmitting circuit. The radio frequency receiving circuit is mainly used for carrying out filtering, mixing demodulation, decoding and other processes on signals received by the antenna, and finally restoring the signals. The radio frequency transmitting circuit is mainly used for modulating signals to be transmitted, transmitting and converting the signals, amplifying the power and the like, and transmitting the signals through the antenna.

In connection with fig. 8, as shown in fig. 9, in the process of transmitting signals, the signals are transmitted through the baseband chip 114, the radio frequency chip 113, the radio frequency transceiver 112, the power amplifier 110, the first filter 108, the duplexer 107, and the radio frequency switch 106 and then transmitted through the antenna 1052.

Referring to fig. 8, as shown in fig. 10, in the process of receiving signals, signals received by the antenna 1052 are transmitted to the baseband chip 114 for decoding after passing through the radio frequency switch 106, the duplexer 107, the second filter 109, the low noise amplifier 111, the radio frequency transceiver 112, and the radio frequency chip 113.

The first communication interface and the second communication interface related to the embodiment of the utility model can be spring needle interfaces. Compared with the traditional communication interface (such as a USB interface), the spring pin interface has the advantages of long service life, zero-force butt joint, stable adsorption force, capability of bearing vibration and impact, capability of being automatically disconnected when being separated by external force, no damage to a keyboard and electronic equipment and the like.

The first communication interface and the second communication module may each include a power terminal, a ground terminal, and at least one data terminal. The number of data terminals is related to the USB protocols supported by the first communication interface and the second communication interface. The maximum transmission rates of different USB protocols are different. Table 1 shows the maximum transmission rates corresponding to the different USB protocols.

TABLE 1

Category(s)	Maximum transmission rate (Gbps)
		USB 1.1	0.12
USB 2.0	0.48
		USB 3.0	5
USB 3.1 (first generation)	5
		USB 3.1 (second generation)	10
USB 3.2	20

The maximum transmission rates for different mobile communication technologies are different, see in particular table 2.

TABLE 2

Category(s)	Maximum transmission rate (Gbps)
		Fourth generation mobile communication technology	1
Fifth generation mobile communication technology	2

It can be seen that the maximum transmission rate is different when the mobile communication technologies supported by the mobile communication module are different. In order to meet the requirements of the transmission rate, a first communication interface and a second communication interface supporting the corresponding USB protocol need to be selected.

Alternatively, when the mobile communication module supports the fifth generation mobile communication technology, the first communication interface and the second communication interface may include four data terminals.

When the mobile communication module is a mobile communication module supporting the fifth generation mobile communication technology, the maximum transmission rate is 2Gbps. To meet the requirement of the transmission rate, the first communication interface and the second communication interface may be communication interfaces supporting any one of the USB 3.0 protocol, the USB 3.1 (first generation) protocol, and the USB 3.1 (second generation) protocol. In general, in order to save hardware resources, when the mobile communication module is a mobile communication module supporting the fifth generation mobile communication technology, a first communication interface and a second communication interface supporting the USB 3.0 protocol or the USB 3.1 (first generation) protocol may be selected.

Illustratively, the first communication interface and the second communication interface support the USB 3.0 protocol. In connection with fig. 7, as shown in fig. 11, the first communication interface 101 and the second communication interface 201 each require four data terminals. The four data terminals of the first communication interface 101 are respectively: the first receiving data terminal RX1+, the first transmitting data terminal TX1+, the second receiving data terminal RX1-, and the second transmitting data terminal TX1-. The four data terminals of the second communication interface 201 are respectively: third receiving data terminal RX2+, third transmitting data terminal TX2+, fourth receiving data terminal RX2-, and fourth transmitting data terminal TX2-.

Alternatively, when the mobile communication module supports the fourth generation mobile communication technology, the first communication interface and the second communication interface may include four data terminals. In order to save hardware resources, when the mobile communication module is a mobile communication module supporting the fourth generation mobile communication technology, the first communication interface and the second communication interface supporting the USB 3.0 protocol or the USB 3.1 (first generation) protocol may be selected.

As can be seen from the above, when the mobile communication module is a mobile communication module supporting the fourth generation mobile communication technology or the fifth generation mobile communication technology, the specific structures of the first communication interface and the second communication interface may be the same. Then, when the mobile communication module is a mobile communication module supporting both the fourth generation mobile communication technology and the fifth generation mobile communication technology, the first communication interface and the second communication interface including the above four data terminals may be selected.

Further, as shown in fig. 11, the keyboard 100 provided by the embodiment of the present utility model may further include a keyboard module 103, where the keyboard module 103 is coupled to the first end of the first processor 102. When the keyboard 100 is connected to the electronic device 200, data can be input into the electronic device 200 through the keyboard module 103.

Alternatively, as shown in fig. 12 in conjunction with fig. 11, keyboard module 103 may include matrix keyboard circuitry 1031, and matrix keyboard circuitry 1031 may be coupled to a first end of first processor 102. When a key in matrix keyboard circuit 1031 is pressed, first processor 102 is configured to determine positional information for the key and process the positional information to determine data to be entered in the electronic device. Matrix keyboard circuit 1031 is also coupled to a first power module 104, and first power module 104 is configured to provide power to matrix keyboard circuit 1031.

Illustratively, the matrix keyboard circuit may include: m (M is a positive integer) row lines and N (N is a positive integer) column lines. A key is provided at each intersection of a row line and a column line. Before any key is not pressed, all row lines and column lines are not contacted (i.e. disconnected), when a key is pressed, the row lines and column lines corresponding to the key are contacted (i.e. shorted), so that current is generated, and other row lines and other column lines cannot generate current. Thus, the first processor can determine the position information of the pressed key, process the position information of the key and send the processed information to the electronic equipment. Since each key has unique position information, a unique character can be input in the electronic device or a unique function can be implemented according to the position information.

Alternatively, as shown in fig. 12, the keyboard module 103 may include a sensor 1032 for detecting an angle between the electronic device and the keyboard, and the sensor 1032 may be coupled to a first end of the first processor 102. The sensor 1032 may include at least one of a hall sensor and a gravity sensor, but is not limited thereto.

Wherein, the angle between electronic equipment and keyboard refers to: and an included angle between the plane of the screen of the electronic equipment and the plane of the key of the keyboard.

When the electronic device is connected with the keyboard, the angle between the electronic device and the keyboard can be determined by the hall sensor and/or the gravity sensor. Depending on the angle, the first processor may control the keyboard to be in an unlocked state, or a locked state. In this way, unnecessary data input in the electronic device due to the fact that the keyboard is touched by mistake can be avoided, and meanwhile, power consumption of the keyboard can be reduced.

In one embodiment, the sensor may comprise a gravity sensor. The electronic equipment is also provided with a gravity sensor. The location of the gravity sensor on the keyboard corresponds to the location of the gravity sensor on the electronic device. In the process of opening and closing the keyboard and the electronic equipment, the first processor can calculate the first acceleration caused by gravity through a gravity sensor on the keyboard, so that the first inclination angle of the keyboard relative to the horizontal plane is calculated. The second processor may calculate a second acceleration due to gravity through a gravity sensor on the electronic device, thereby calculating a second tilt angle of the electronic device with respect to a horizontal plane, and send the second tilt angle to the first processor. The first processor can calculate an angle between the keyboard and the electronic device according to the first inclination angle and the second inclination angle. When the angle between the keyboard and the electronic device exceeds a first preset angle (e.g., 180 °), the first processor may control the keyboard to be in a locked state. In this way, data can be prevented from being input in the electronic device by erroneously touching the keyboard, and power consumption of the keyboard can be reduced.

In another embodiment, the sensor may comprise a hall sensor. The hall sensor may be close to the front side of the keyboard (i.e. the side provided with the keys), and the magnet may be arranged in the electronic device. The position of the magnet corresponds to the position of the hall sensor.

When the electronic equipment is connected with the keyboard, the magnetic field around the Hall sensor is weakened and strengthened in the process that the Hall sensor on the keyboard is close to the magnet on the electronic equipment. The first processor may determine an angle between the keyboard and the electronic device based on the magnetic field change. When the angle between the keyboard and the electronic device is smaller than a second preset angle (e.g. 15 °), the first processor may control the keyboard to be in a standby state. Meanwhile, the first processor can send a screen-extinguishing instruction to the electronic equipment, and the electronic equipment is in a screen-extinguishing state according to the screen-extinguishing instruction. In this way, the power consumption of the electronic device and the keyboard can be reduced.

In the process that the Hall sensor on the keyboard is far away from the magnet on the electronic equipment, the magnetic field around the Hall sensor is weakened by strong force. The first processor may determine an angle between the keyboard and the electronic device based on the magnetic field change. When the angle between the keyboard and the electronic equipment is larger than a second preset angle (such as 15 degrees), the first processor can control the keyboard to be in a working state. Meanwhile, the first processor can send a screen-lighting instruction to the electronic equipment, and the electronic equipment lights up a screen according to the screen-lighting instruction.

Optionally, the keyboard may further comprise a magnet. At this time, the hall sensor may be provided in the electronic device, and then the second processor in the electronic device may determine an angle between the keyboard and the electronic device according to a magnetic field change of the hall sensor, so as to transmit an unlock instruction or a lock instruction to the first processor of the keyboard. The first processor controls the keyboard to be in an unlocking state according to the unlocking instruction, or controls the keyboard to be in a locking state according to the locking instruction.

In summary, when the angle between the keyboard and the electronic device is greater than the second preset angle and smaller than the first preset angle, the keyboard is in a working state. At this time, data may be input in the electronic device through the keyboard. When the angle between the keyboard and the electronic equipment is larger than the first preset angle, the keyboard is in a locking state, and at the moment, data cannot be input into the electronic equipment through the keyboard. When the angle between the keyboard and the electronic equipment is smaller than the second preset angle, the keyboard is in a standby state, so that the power consumption of the keyboard can be reduced.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A keyboard, comprising: a first communication interface, a mobile communication module, and a processor; the first end of the processor is coupled to the mobile communication module, and the second end of the processor is coupled to the data end of the first communication interface, which is further configured to be coupled to the data end of the second communication interface of the electronic device.

2. The keyboard of claim 1, wherein the mobile communication module comprises: a radio frequency circuit and an antenna;

a first end of the radio frequency circuit is coupled to the antenna and a second end of the radio frequency circuit is coupled to the first end of the processor.

3. The keyboard of claim 1 or 2, wherein the mobile communication module supports fifth generation mobile communication technology, and the first communication interface and the second communication interface comprise four data terminals.

4. The keyboard of claim 1 or 2, wherein the first communication interface and the second communication interface are pogo pin interfaces.

5. The keyboard of claim 1 or 2, further comprising a keyboard module coupled to the first end of the processor.

6. The keyboard of claim 5, wherein the keyboard module comprises a matrix keyboard circuit coupled to a first end of the processor.

7. The keyboard of claim 6, wherein the keyboard module comprises a sensor for detecting an angle between the electronic device and the keyboard, the sensor coupled to a first end of the processor.

8. The keyboard of claim 7, wherein the sensor comprises a hall sensor and/or a gravity sensor.

9. The keyboard of claim 1 or 2, further comprising a support plate having a recess, the first communication interface being disposed within the recess, the support plate for carrying the electronic device when the first communication interface is coupled to the second communication interface.

10. A keyboard system comprising an electronic device, and a keyboard as claimed in any one of claims 1 to 9; the electronic device includes a second communication interface, and the keyboard includes a first communication interface having a data end coupled to a data end of the second communication interface.