CN112286373A

CN112286373A - Input device, electronic equipment and input method

Info

Publication number: CN112286373A
Application number: CN202011200415.5A
Authority: CN
Inventors: 李沛德; 蔡家柱
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-01-29

Abstract

The application discloses an input device, electronic equipment and an input method. The input device comprises an input module and a connecting piece, wherein the input module comprises a plurality of input keys; when any one input key is in a trigger state, the input module outputs a pulse sequence corresponding to the input key in the trigger state; the input module is electrically connected with the connecting piece; the connecting piece includes a illuminator, the illuminator can be used to send the light of a plurality of different luminous frequencies, wherein, every luminous frequency corresponds to a pulse sequence of input module output, the connecting piece is used for connecting the module of making a video recording of electronic equipment, so that the module of making a video recording acquires the light that the illuminator sent. The embodiment of the application solves the technical problem that the existing input device occupies a data interface on the electronic equipment when being connected with the electronic equipment.

Description

Input device, electronic equipment and input method

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to an input device, electronic equipment and an input method.

Background

With the rapid development of electronic technology, various electronic products have increasingly powerful functions, the updating speed of the electronic products is increasing, and the use requirements of people on the electronic products are also increasing. In various types of electronic devices, for example, a smart phone is used, and as the configuration of the smart phone is increasingly powerful, the smart phone can replace part of office functions of a computer, so that a user can use the smart phone to perform office operations. However, due to the full-screen design of the smart phone, no special keyboard area is set on the smart phone, so that there are many inconveniences when inputting information. The problem can be well solved by the external keyboard of the mobile phone.

In the prior art, when an external keyboard is connected to a smart phone, the keyboard is connected with the smart phone through a data interface or an earphone jack of the smart phone, so that the data interface or the earphone jack is easily damaged by frequent plugging, and the smart phone cannot be simultaneously used or charged under the condition that the smart phone is externally connected with the keyboard, so that inconvenience is caused to the use of a user, and the use experience of the user is reduced.

Disclosure of Invention

The application aims to provide an input device, electronic equipment and an input method, and at least solves the technical problem that when the existing electronic equipment is connected with an external keyboard, a data interface or an earphone jack on the electronic equipment needs to be occupied.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an input device, including:

the input module comprises a plurality of input keys; when any one input key is in a trigger state, the input module outputs a pulse sequence corresponding to the input key in the trigger state;

the input module is electrically connected with the connecting piece; the connecting piece includes a illuminator, the illuminator can be used to send the light of a plurality of different luminous frequencies, wherein, every luminous frequency corresponds to a pulse sequence of input module output, the connecting piece is used for connecting the module of making a video recording of electronic equipment, so that the module of making a video recording acquires the light that the illuminator sent.

In a second aspect, an embodiment of the present application provides an electronic device, including:

the camera module is used for being connected with the connecting piece; the camera module comprises a sensor, and the sensor is used for collecting light rays with a plurality of different light-emitting frequencies emitted by the light emitter.

In a third aspect, an embodiment of the present application provides an input method, where the input method is applied to an electronic device as described in any one of the above, and the input method includes:

starting the camera module in a state that the connecting piece is connected with the camera module;

when the input key is in a triggered state, the input module outputs a pulse sequence corresponding to the input key in the triggered state to the light emitter;

the light emitter emits light rays corresponding to the light emitting frequency of the pulse sequence;

the camera module collects the light emitting frequency generated by the light emitter and identifies the input key in the trigger state according to the light emitting frequency.

In the embodiment of the application, the light emitter is arranged in the connecting piece, the light emitter can emit light rays with a plurality of different light emitting frequencies, each light emitting frequency corresponds to the unique pulse sequence represented by one input key on the input module, and therefore the corresponding pulse sequence can be identified through identification of the light emitting frequency, and information input by a user can be deduced. That is, the input device of the embodiment of the present application is different from a conventional external keyboard, and identifies input keys by identifying different light emitting frequencies of the light emitter to confirm input information.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an input device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the connection of an encoder to a light emitter of an input device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 4 is a schematic diagram of a real sensing pixel circuit according to an embodiment of the present application.

Reference numerals:

101-input module, 1011-input key, 1012-encoder, 102-connecting piece, 1021-light emitter, 103-connecting line, 201-equipment body, 202-first current amplifier, 203-analog-to-digital conversion unit, 204-logic judgment unit, 205-control unit, 206-first switch unit, 207-second current amplifier, 208-second switch unit.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The input device provided according to the embodiment of the present application is further described below with reference to fig. 1 to 3. The input device provided by the embodiment of the application can be applied to electronic equipment such as a smart phone and a tablet computer. The input device can be used after being connected with a camera module on the electronic equipment, so that a data interface or an earphone jack on the electronic equipment is not required to be occupied when the input device is connected. The input device of the embodiment of the application can be used for inputting data to electronic equipment, particularly, aiming at the full-screen design of the current smart phone and the tablet personal computer, a special keyboard area is not arranged on the input device, so that a great deal of inconvenience is brought to information input.

Referring to fig. 1 and 2, the input device of the embodiment of the present application includes an input module 101, a connecting member 102, and a connecting wire 103. The external structure of the input device is simple, no complex assembly relation exists, and the input device can be connected with the electronic equipment through the connecting piece 102.

The input module 101 includes a plurality of input keys 1011. When any one of the input keys 1011 is in a triggered state, the input module 101 is configured to output a pulse sequence corresponding to the triggered input key 1011. That is, for the plurality of input keys 1011 on the input module 101, each input key 1011 actually has a unique pulse sequence that can represent itself, so that when the input key 1011 is triggered on the input module 101 to input information, the unique pulse sequence represented by the input key 1011 in the triggered state is output through the input module 101. The input module 101 is electrically connected to the connecting member 102. The connecting component 102 includes a light emitter 1021, and the light emitter 1021 is configured to emit light with a plurality of different light emission frequencies, wherein each light emission frequency corresponds to a pulse sequence output by the input module. That is, only one light emitter 1021 may be disposed in the connecting member 102, and the light emitter 1021 may emit light with a plurality of different light emitting frequencies, and each light emitting frequency corresponds to a pulse sequence of an input key (a unique pulse sequence represented by the input key), so that the corresponding pulse sequence can be identified by identifying the light emitting frequency, and further the corresponding input key can be identified, and finally the information input through the input module 101 can be identified.

The input device of the embodiment of the application has a simpler overall structure, and the light emitter 1021 is arranged in the connecting piece 102, so that the light emitter 1021 emits light rays with a plurality of different light emitting frequencies, each light emitting frequency corresponds to the pulse sequence represented by one input key on the input module 101, and thus, the corresponding pulse sequence can be found through effective identification of the light emitting frequency, and further, the information input by a user is deduced. Therefore, the input device of the embodiment of the present application is different from a conventional external keyboard, and in principle, the input device confirms input information by recognizing different light emitting frequencies of the light emitter 1021, and thus, when the input device of the embodiment of the present application is connected to an electronic device for use, the input device of the embodiment of the present application is directly connected to a camera module on the electronic device without occupying a data interface or an earphone jack on the electronic device. That is, the input device can be used to charge an electronic device or to use a function such as an earphone.

In an alternative example of the present application, each input key 1011 on the input module 101 has a unique pulse sequence representing itself, and the pulse sequence may be a multi-bit signal.

Specifically, the pulse sequence may be an N-bit digital signal, and N is not less than 7. For example, the number pulse sequence corresponding to the key "a" is 0000001, the number pulse sequence corresponding to the key "S" is 0000011, and the number pulse sequence corresponding to the key "1" is 1000000.

It should be noted that, in general, a standard keyboard generally has 101 input keys, and seven-bit codes are enough to represent them, so that N of N-bit digital signals is set to be not less than 7. For the specific number of coded bits, those skilled in the art can flexibly adjust the number of the keys according to the actual number of the keys on the keyboard, as long as it is ensured that each input key 1011 on each input module 101 has a unique pulse sequence representing itself and there is no repetition phenomenon, and the present application does not limit this.

In an alternative example of the present application, the input module 101 may be a software keyboard.

The soft keyboard can be made of rubber material or silica gel material, and has the characteristic of softness. Moreover, the soft keyboard can be bent, has lighter weight and is convenient to carry. The material of the software keyboard is not particularly limited in this application.

Of course, in the embodiment of the present application, the input module 101 is not limited to the above-mentioned software keyboard, and may also be a common hard keyboard or other types of keyboards known to those skilled in the art, as long as the input of information can be realized, and the present application does not limit this.

In the input device according to the embodiment of the present application, referring to fig. 1 and 3, the input module 101 and the connecting member 102 may be connected by the connecting wire 103. The connecting wire 103 may be made of a flexible material, for example, so that it can be bent to reduce the volume for storage.

The connection line 103 is, for example, a power line. Thus, when the input module 101 is connected to the connecting member 102 by using the connecting wire 103, the input module 101 and the connecting member 102 can be electrically connected.

Further, a strap may be provided on the connection cord 103. In this way, after the connecting line 103 is bent, the connecting line 103 can be wound and fixed by a binding band to prevent the connecting line 103 from being scattered when not in use, and the design is more convenient for the storage and carrying of the connecting line 103.

The input device of the embodiment of the present application further includes an encoder 1012. The encoder 1012 may be arranged, for example, within the input module 101.

In an alternative example of the present application, referring to fig. 2, the input module 101 includes an encoder 1012, and when any one of the input keys 1011 on the input module 101 is in the activated state, the encoder 1012 may generate a corresponding unique pulse sequence for the input key 1011. That is, in the input module 101, the pulse train of the input key 1011 in the activated state is actually generated by the encoder 1012 built in the input module 101, and then the pulse train is output by the input module 101. The pulse sequence output by the input module 101 is transmitted to the connecting member 102 through the connecting wire 103, and the light emitter 1021 arranged in the connecting member 102 performs a corresponding light emitting operation in one period, where the light emitting operation refers to a light emitting frequency, that is, the light emitter 1021 emits light with the corresponding light emitting frequency corresponding to the pulse sequence.

In the embodiment of the present application, only one light emitter 1021 may be disposed in the connection member 102. The number of the light emitters is small, so that the production cost can be saved, the occupied area in the connecting piece 102 can be reduced, and the size of the connecting piece 102 can be properly reduced.

In practice, the light emitter 1021 can emit light at a plurality of different light emission frequencies.

For example, the light emitter 1021 may blink 1-1000 times per millisecond, even to a higher light emitting frequency (only 1-1000 is used as an example herein, and is not limited to this range). The different light emitting frequencies correspond to different pulse sequences of the input key 1011, and the two pulse sequences are in one-to-one correspondence. For example, the pulse sequence corresponding to the key "a" is 0000001, the light emitting frequency of the light emitter 1021 corresponding to the pulse sequence is X1, the pulse sequence corresponding to the key "S" is 0000011, the light emitting frequency of the light emitter 1021 corresponding to the pulse sequence is X2, the pulse sequence corresponding to the key "1" is 1000000, and the light emitting frequency of the light emitter 1021 corresponding to the pulse sequence is X3, where X1, X2, and X3 are any three different values from 1 to 1000; by analogy, different pulse sequences correspond to different light emission frequencies. In this way, it is facilitated to subsequently identify different pulse sequences by identifying different light emission frequencies.

It should be noted that, a lighting frequency specifically corresponding to the pulse sequence of each input key 1011 may be flexibly adjusted by a person skilled in the art as needed, as long as it is ensured that each pulse signal corresponds to one lighting frequency and repetition does not occur, which is not limited in the present application.

The light emitter 1021 may be, for example, an LED, an LCD, or another light emitting panel, and those skilled in the art can flexibly select the light emitter according to actual needs, which is not limited in the present application.

The embodiment of the application also provides electronic equipment, and as shown in fig. 3, the electronic equipment comprises an equipment body 201 and a camera module, wherein the camera module is arranged on the equipment body 201. Wherein the camera module can be used to connect with the connecting member 102 as described above (fig. 3 shows that the input device has been connected with the camera module, and the connecting member 102 is covered on the camera module). The camera module comprises a sensor, and the sensor is used for collecting light rays with a plurality of different light-emitting frequencies emitted by the light emitter. It will be appreciated that the camera module is adapted to be connected to the connector 102 of the input device as described above.

The sensor may be, for example, an optical sensor.

The electronic equipment of this application embodiment can be for example the electronic product that has the module of making a video recording for smart mobile phone, panel computer etc. this application is not restricted to the specific kind of electronic equipment.

In the embodiment of the application, the connecting member 102 of the input device may be connected to a camera module of an electronic device to implement assembly between the input device and the camera module, and after the input device is connected to the camera module, the input device may be used to input information.

In an optional example of the present application, the connection member 102 of the input device and the camera module on the apparatus body 201 may be connected in a magnetic attraction manner. The connection mode is simple, and the two are easy to disassemble and assemble. More importantly, the structure of the device body 201 and the connecting piece 102 does not need to be greatly changed, and the production difficulty is not increased.

Specifically, one end of the connecting member 102 is connected to the input module 101 through the connecting wire 103, a first suction member is disposed at the other end of the connecting member 102, and a second suction member is disposed at an outer edge of the camera module on the device body 201. When the connecting piece 102 contacts with the camera module 201, the first absorbing piece and the second absorbing piece can be magnetically attracted, so that the connecting piece 102 is buckled on the camera module, and the assembly of the input device and the equipment body is realized.

Of course, in the embodiment of the present application, the connecting member 102 on the input device may be connected to the camera module on the apparatus body 201 in other manners, and is not limited to the magnetic attraction manner. For example, a clamping portion may be disposed on the connecting member 102, a clamping groove is disposed around the camera module on the device body 201, and the connecting member 102 and the camera module may be connected in a clamping manner. This way also facilitates disassembly and assembly. A person skilled in the art can select a connection mode between the input device and the camera module on the apparatus body 201 according to specific situations, which is not limited in the present application.

In the embodiment of the present application, a sensor is provided in the camera module of the apparatus body 201. The sensor includes a real-sensing pixel circuit, unlike sensors in conventional electronic device camera modules.

Referring to fig. 4, the sensor-embedded real sensing pixel circuit includes a first current amplifier 202, an analog-to-digital conversion unit 203, a logic determination unit 204, a control unit 205, and a first switching unit 206.

An output end of the first current amplifier 202 is connected to an input end of the analog-to-digital conversion unit 203, an output end of the analog-to-digital conversion unit 203 is connected to an input end of the logic judgment unit 204, and an output end of the logic judgment unit 204 is connected to an input end of the control unit 205; the first switch unit 206 is disposed between the first current amplifier 202 and the control unit 205, an output end of the first current amplifier 202 is connected to a first end of the first switch unit 206, an output end of the control unit 205 is connected to a control end of the first switch unit 206, and a second end of the first switch unit 206 is a first output end of the real pixel circuit.

Referring to the circuit diagram shown in fig. 4, an optical signal collected by a PD1 (i.e., a photodiode) enters the analog-to-digital conversion unit 203 after being amplified by the first current amplifier 202, the analog-to-digital conversion unit 203 converts the amplified electrical signal into a digital signal, the digital signal is continuously transmitted to the logic judgment unit 204, and when the logic judgment unit 204 judges that the digital signal exceeds a preset threshold range, the control unit 205 controls the first switch unit 206 to open a switch, and a second end of the first switch unit 206 outputs an analog signal.

In the embodiment of the present application, referring to fig. 4, in addition to the first current amplifier 202, the analog-to-digital conversion unit 203, the logic determination unit 204, the control unit 205, and the first switch unit 206, the real pixel circuit may further include a second current amplifier 207 and a second switch unit 208. The second switch unit 208 is disposed between the second current amplifier 207 and the control unit 205, an output end of the second current amplifier 207 is connected to a first end of the second switch unit 208, an output end of the control unit 205 is connected to a control end of the second switch unit 208, and a second end of the second switch unit 208 is a second output end of the real pixel circuit.

In fact, in the embodiment of the present application, another circuit structure is formed by the second current amplifier 207 and the second switch unit 208, and the circuit structure is combined with the circuit structure of the first current amplifier 202, the analog-to-digital conversion unit 203, the logic judgment unit 204, the control unit 205, and the first switch unit 206 to mainly implement the phase focusing function. In an application, only a circuit including the first current amplifier 202, the analog-to-digital conversion unit 203, the logic determination unit 204, the control unit 205, and the first switch unit 206 may be used.

The PD1 (i.e., photodiode) in the first circuit amplifier and the PD2 (i.e., photodiode) in the second current amplifier are CMOS transistors.

In the prior art, when an external keyboard is connected to an electronic device, the external keyboard is connected to the electronic device through a data interface or an earphone jack on the electronic device, so that the data interface and the like are frequently used, and the data interface or the earphone jack is easily damaged by frequent plugging and unplugging. And under the condition that electronic equipment is externally connected with a keyboard, the earphone or the electronic equipment cannot be used simultaneously or charged and other operations cannot be carried out, so that inconvenience is caused to the use of the user, and the use experience of the user is reduced.

In the embodiment of the application, when information is input, the input of the information can be realized by means of the input device. When the input device is connected, the connection mode of the input device is different from that of a traditional external keyboard, and particularly, the connection piece 102 on the input device is connected with the camera module on the electronic equipment. Under the connection mode, a data interface and a headphone jack on the electronic equipment can be not occupied. Therefore, the functions of charging, information transmission, music listening and the like for the electronic equipment by using the data interface can be realized while using the external input device. Therefore, the embodiment of the application provides a new mode for the external input device of the electronic equipment.

The embodiment of the application also provides an input method, and the input method is applied to the electronic equipment.

Wherein, the input method at least comprises the following steps:

step 1, starting the camera module in a state that the connecting piece 102 is connected with the camera module.

Before using the input device, the input device is first connected to the camera module on the apparatus main body 201. The connecting member 102 and the camera module can be magnetically attached to each other. This is simple and both the disassembly and assembly are relatively simple. Of course, other attachment means, such as snap-fitting, may be used.

In addition, the input device needs to realize the function of inputting information and also needs to ensure that the camera module connected with the input device is in an open state, so that the input device can be normally used.

Step 2, when the input key 1011 is in the triggered state, the input module 101 outputs the pulse sequence corresponding to the input key 1011 in the triggered state to the light emitter 1021.

After the input device is connected to the camera module of the apparatus body 201 through step 1, the input module 101 can be operated according to the input requirement. Specifically, the user triggers the input key 1011 on the input module 101 to input information, at this time, the input module 101 outputs a unique pulse sequence (i.e. a pulse sequence representing itself) corresponding to the input key 1011 in the triggered state to the connection element 102, specifically to the light emitter 1021 arranged in the connection element 102, and then the light emitter 1021 performs subsequent operations.

And 3, the light emitter 1021 emits light rays with the light emitting frequency corresponding to the pulse sequence.

Only one light emitter 1021 is arranged in the connecting piece 102 of the input device, the light emitter 1021 can generate light rays with a plurality of different light emitting frequencies, the pulse sequence represented by each input key 1011 is preset to correspond to one light emitting frequency, and mutual repetition is avoided, so that each input key 1011 actually corresponds to a specific light emitting frequency, and different pulse sequences can be distinguished by identifying different light emitting frequencies subsequently.

And step 4, the camera module collects the light emitting frequency generated by the light emitter 1021, and identifies the input key 1011 in the trigger state according to the light emitting frequency.

The camera module on the electronic device is internally provided with a sensor, the sensor can collect the light emitting frequency of light emitted by the illuminator 1021 in the input device, and can identify the pulse sequence corresponding to the light emitting frequency according to the collected light emitting frequency, so as to identify the input key 1011 on the corresponding input module 101.

In the embodiment of the present application, it is preferable that the sensor in the camera module is a sensor having a real sensing pixel circuit, so that the light emitting frequency generated by the light emitter 1021 can be identified more accurately and more rapidly, which helps to improve the speed and accuracy of inputting information by the input device.

Other configurations and operations of the input device, the electronic apparatus, and the input method according to the embodiments of the present application are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An input device, comprising:

an input module (101), the input module (101) comprising a plurality of input keys (1011); when any one input key (1011) is in a trigger state, the input module (101) outputs a pulse sequence corresponding to the input key (1011) in the trigger state;

the input module (101) is electrically connected with the connecting piece (102); the connecting piece (102) comprises a light emitter (1021) which can be used for emitting light rays with a plurality of different light emitting frequencies, wherein each light emitting frequency corresponds to a pulse sequence output by the input module (101), and the connecting piece (102) is used for connecting a camera module of electronic equipment so that the camera module can obtain the light rays emitted by the light emitter (1021).

2. The input device according to claim 1, wherein the pulse sequence is an N-bit digital signal, and N is not less than 7.

3. The input device according to claim 1, wherein the input module (101) is a software keyboard.

4. The input device according to any of claims 1-3, characterized in that the input module (101) and the connection member (102) are electrically connected by a connection line (103).

5. The input device according to claim 4, characterized in that the connection line (103) is a power line, and the power line is made of flexible material.

6. The input device according to claim 1, wherein the input module (101) comprises an encoder, and when any one of the input keys (1011) is in the activated state, the encoder generates a corresponding pulse sequence.

7. An electronic device, characterized in that the electronic device comprises:

the camera module is used for being connected with the connecting piece according to any one of claims 1-6; the camera module comprises a sensor, and the sensor is used for collecting light rays with a plurality of different light-emitting frequencies emitted by the light emitter.

8. The electronic device according to claim 7, wherein the sensor comprises a real sensing pixel circuit comprising a first current amplifier (202), an analog-to-digital conversion unit (203), a logic judgment unit (204), a control unit (205) and a first switch unit (206);

the output end of the first current amplifier (202) is connected with the input end of the analog-to-digital conversion unit (203), the output end of the analog-to-digital conversion unit (203) is connected with the input end of the logic judgment unit (204), and the output end of the logic judgment unit (204) is connected with the input end of the control unit (205); the first switch unit (206) is arranged between the first current amplifier (202) and the control unit (205), the output end of the first current amplifier (202) is connected with the first end of the first switch unit (206), the output end of the control unit (205) is connected with the control end of the first switch unit (206), and the second end of the first switch unit is the first output end of the real sensing pixel circuit.

9. The electronic device according to claim 8, wherein the real sensing pixel circuit further comprises a second current amplifier (207) and a second switching unit (208); the second switch unit (208) is arranged between the second current amplifier (207) and the control unit (205), the output end of the second current amplifier (207) is connected with the first end of the second switch unit (208), the output end of the control unit (205) is connected with the control end of the second switch unit (208), and the second end of the second switch unit (208) is the second output end of the real sensing pixel circuit.

10. An input method applied to the electronic device according to any one of claims 7 to 9, the input method comprising:

starting the camera module in a state that the connecting piece (102) is connected with the camera module;

when the input key (1011) is in a triggered state, the input module (101) outputs a pulse sequence corresponding to the input key (1011) in the triggered state to the light emitter (1021);

the light emitter (1021) emits light at a light emission frequency corresponding to the pulse sequence;

the camera module collects the light emitting frequency generated by the light emitter (1021) and identifies the input key (1011) in the trigger state according to the light emitting frequency.