CN110753139B

CN110753139B - Input method and mobile terminal

Info

Publication number: CN110753139B
Application number: CN201910914092.7A
Authority: CN
Inventors: 余光钢
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2021-02-26
Anticipated expiration: 2039-09-25
Also published as: CN110753139A

Abstract

The embodiment of the invention provides an input method and a mobile terminal, and relates to the field of terminal control. The mobile terminal includes: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the method comprises the following steps: in a scanning period of the capacitive touch circuit, the capacitive touch circuit detects, at a first time period: a coupling capacitance between the first communication radio frequency link and a human body; in the scanning cycle, the capacitive touch circuit detects, at a second time interval: a capacitance value of the key link; under the condition that the duration of the second time interval is greater than 0, the scanning period is less than or equal to a preset period; and executing target operation under the condition that the capacitance value of the key link is greater than or equal to a preset capacitance value. The application increases the diversity of input modes, and is convenient for carry out a plurality of input operations simultaneously, and then is convenient for control mobile terminal.

Description

Input method and mobile terminal

Technical Field

The embodiment of the invention relates to the technical field of terminal control, in particular to an input method and a mobile terminal.

Background

The mobile terminal has strong processing capacity, can complete complex processing tasks, communication modes and the like, and is an indispensable important tool in work and life at present.

The mobile terminal generally receives input operations of a user through a screen, a microphone, and the like, so as to facilitate human-computer interaction.

In the process of studying the prior art, the inventor finds that the prior art has the following technical problems: only devices such as a screen and a microphone are used for receiving input operation, the input mode is single, multiple input operations are difficult to be simultaneously performed, and the mobile terminal is inconvenient to operate.

Disclosure of Invention

The invention provides an input method and a mobile terminal, and aims to solve the problems that the input mode of the existing mobile terminal is single and inconvenient to operate and control.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an input method, which is applied to a mobile terminal, where the mobile terminal includes: a first communication radio frequency link and a capacitive touch circuit; the mobile terminal further includes: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the method comprises the following steps:

in a scanning period of the capacitive touch circuit, the capacitive touch circuit detects, at a first time period: a coupling capacitance between the first communication radio frequency link and a human body;

in the scanning cycle, the capacitive touch circuit detects, at a second time interval: a capacitance value of the key link; under the condition that the duration of the second time interval is greater than 0, the scanning period is less than or equal to a preset period;

and executing target operation under the condition that the capacitance value of the key link is greater than or equal to a preset capacitance value.

In a second aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes: a first communication radio frequency link and a capacitive touch circuit; the mobile terminal further includes: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the mobile terminal includes:

a coupling capacitance detection module, configured to detect, in a scanning period of the capacitive touch circuit, at a first time period: a coupling capacitance between the first communication radio frequency link and a human body;

a capacitance value detection module, configured to detect, in the scanning cycle, at a second time interval by the capacitive touch circuit: a capacitance value of the key link;

and the execution module is used for executing target operation under the condition that the capacitance value of the key link is greater than or equal to a preset capacitance value.

In a third aspect, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes a processor, a memory, and a computer program stored on the memory and operable on the processor, and when the computer program is executed by the processor, the steps of the input method according to the present invention are implemented.

In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the input method described in the present invention.

In an embodiment of the present invention, the mobile terminal includes: a first communication radio frequency link and a capacitive touch circuit; the mobile terminal further includes: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the method comprises the following steps: in a scanning period of the capacitive touch circuit, the capacitive touch circuit detects, at a first time period: a coupling capacitance between the first communication radio frequency link and a human body; in the scanning cycle, the capacitive touch circuit detects, at a second time interval: a capacitance value of the key link; under the condition that the duration of the second time interval is greater than 0, the scanning period is less than or equal to a preset period; and executing target operation under the condition that the capacitance value of the key link is greater than or equal to a preset capacitance value. . In the prior art, a mobile terminal usually receives an input operation of a user through a screen, a microphone, and the like, so as to facilitate human-computer interaction. However, the input operation is received only through devices such as a screen and a microphone, the input mode is single, and it is difficult to perform multiple input operations simultaneously, which is inconvenient for operating the mobile terminal. According to the method and the device, the touch control circuit is only used for being connected with the first communication radio frequency link according to the capacitance, the detection of the coupling capacitance between the touch control circuit and the human body is achieved, and then under the condition that the human body is close to or the distance between a person and the first communication radio frequency link is small, the radio frequency emission power of the first communication radio frequency link is reduced, and further the radio frequency radiation to the human body is reduced. The key link is arranged in the frame, the frame is located on the outer side of the mobile terminal, the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link, and due to the fact that the real-time requirement for detection of the coupling capacitance of the human body is low, the coupling capacitance between the human bodies can be detected in a first period of a scanning period through the capacitance touch circuit, and the capacitance value of the key link can be detected in a second period of the scanning period. And under the condition that the duration of the second time interval is greater than 0, setting the scanning period of the capacitive touch circuit to be shorter, and further meeting the requirement of the key link on real-time detection. When the key link receives the target operation, the capacitance of the key link is greater than or equal to the preset capacitance. Therefore, under the condition that the capacitance value of the key link is larger than or equal to the preset capacitance value, the key link is represented to receive target operation, the target operation is executed, and further time division multiplexing of the capacitance touch circuit is achieved, the input mode of the mobile terminal is increased, on one hand, diversity of the input mode is increased, on the other hand, due to the fact that the key link is arranged on the frame of the mobile terminal and mutual interference and influence between the key link and screen input are small, the mobile terminal is convenient to pass through a screen and the key link, multiple input operations are conducted simultaneously, and further the mobile terminal is convenient to control.

Drawings

FIG. 1 is a flow chart of an input method according to an embodiment of the present invention;

fig. 2 is a schematic top view of a mobile terminal according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a scanning cycle of a capacitive touch circuit according to an embodiment of the invention;

fig. 4 is a schematic diagram illustrating a connection between a second communication rf link and a capacitive touch circuit and a first rf control circuit according to an embodiment of the present invention;

FIG. 5 is a flow chart of another input method provided by an embodiment of the invention;

fig. 6 is a block diagram of a mobile terminal according to an embodiment of the present invention;

fig. 7 is a block diagram of a mobile terminal according to another embodiment of the present invention;

fig. 8 is a diagram illustrating a hardware configuration of a mobile terminal implementing various embodiments of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of 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 invention.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Referring to fig. 1, fig. 1 is a flowchart illustrating an input method according to an embodiment of the present invention, where the input method is applied to a mobile terminal, and the mobile terminal may include: computers, mobile phones, notebooks, tablets, etc. In the embodiment of the present invention, this is not particularly limited.

In the embodiment of the present invention, the mobile terminal may further include: on the basis of the first communication radio frequency link capacitance touch circuit, the touch circuit further comprises a key link. The key link is arranged on a frame of the mobile terminal. The capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link. Specifically, the mobile terminal may communicate with the base station through the first communication radio frequency link under the control of the radio frequency control circuit. The first communication radio frequency link may be one communication radio frequency link or a plurality of communication radio frequency links. In the embodiment of the present invention, this is not particularly limited.

In the embodiment of the present invention, the first communication rf link may further detect a coupling capacitance between the first communication link and the human body under the control of the capacitive touch circuit. The first communication radio frequency link may be disposed at a location proximate to a sound outlet of the mobile terminal. For example, the sound outlet of the mobile terminal is arranged at the top of the frame of the mobile terminal, and the first communication radio frequency link may also be arranged on the top frame of the mobile terminal. In particular, the mobile terminal may generally transmit or receive radio frequency signals or the like through electromagnetic waves. However, the human body also absorbs electromagnetic waves, and the radio frequency energy of the electromagnetic waves needs to be controlled to reduce the influence on the human body. Specific Absorption Rate (SAR) is used to characterize the energy of electromagnetic waves absorbed by the human body. Generally, the lower the SAR value, the less the influence of the emitted electromagnetic wave on the human body, so SAR reduction is required to reduce the influence on the human body. At present, a mobile terminal mainly determines a proximity distance from a first communication radio frequency link to a human body, for example, a coupling capacitance between the first communication radio frequency link and the human body is detected, and when the coupling capacitance is greater than a set capacitance, it indicates that the human body is closer to the first communication link, so that the transmission power of a radio frequency signal of the first communication radio frequency link can be reduced, and the purpose of reducing an SAR is achieved.

The detection of the coupling capacitance between the first communication radio frequency link and the human body is mainly realized by electrically connecting the capacitance touch circuit and the first communication radio frequency link, and multiplexing the first communication radio frequency link into a capacitive sensor or a capacitive sensing electrode. The capacitive touch control circuit can detect a human body capacitance received by an inductive electrode or a capacitive sensor of a capacitor. In the embodiment of the present invention, the capacitive touch circuit is not particularly limited.

The key link may have an operation area capable of receiving an input operation by a user. For example, a hole may be dug in the bezel of the mobile terminal, in which hole a key link is buried, the case link having an operating area of the peripheral device. The key link can be made of metal and the like, is electrically connected with the capacitor touch circuit, can be used as an induction electrode of a capacitor, and can increase the capacitance value of the key link to be larger than or equal to a preset capacitance value under the condition of receiving input operation. The preset capacitance value can be set according to requirements. In the embodiment of the present invention, this is not particularly limited. Under the condition that the input operation is not received, the capacitance value of the key link is far smaller than the preset capacitance value. And further, whether the key link receives an input operation can be judged by detecting the capacitance value of the key link. The key link can be one or more, is arranged on the frame of the mobile terminal, and further has small interference and influence with screen input, is convenient to perform a plurality of input operations simultaneously through a screen, the key link and the like, and further is convenient to control the mobile terminal. For example, some preset applications which need convenient operation can be conveniently operated and controlled through the key link and the like.

In the embodiment of the present invention, in view of a low real-time requirement for detecting the coupling capacitance between the first communication rf link and the human body, the capacitive touch circuit is reused in the present application, and the capacitive touch circuit can control the first communication rf link and detect the coupling capacitance between the first communication rf link and the human body. In addition, the capacitance touch circuit can also control the key link and detect the capacitance value of the key circuit in a time-sharing manner.

Referring to fig. 2, fig. 2 is a schematic top view of a mobile terminal according to an embodiment of the present invention. 11 may be a screen of the mobile terminal and 12 may be a bezel of the mobile terminal. 13 may be a first communication radio frequency link and 14 may be a key link. The key link 14 is provided on the frame of the mobile terminal. The mobile terminal may have two key links 14. The capacitive touch circuitry is not shown in fig. 2.

The input method may specifically include the steps of:

step 101, in a scanning period of the capacitive touch circuit, the capacitive touch circuit detects at a first time period: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

In the embodiment of the invention, the capacitive touch circuit has a certain scanning period. In the scan cycle, the capacitive touch circuit detects the capacitance of the device electrically connected thereto, and the capacitive touch circuit may stop detecting in an idle period other than the scan cycle.

In the embodiment of the invention, the capacitive touch circuit is electrically connected with the first communication radio frequency link, and the first communication radio frequency link is multiplexed into a capacitive sensor or an induction electrode of a capacitor so as to obtain the detection of the coupling capacitor.

In the embodiment of the present invention, the first period may be set according to the requirement for SAR reduction. In the embodiment of the present invention, this is not particularly limited.

Step 102, in the scanning cycle, the capacitive touch circuit detects in a second time period: a capacitance value of the key link; and under the condition that the duration of the second time interval is greater than 0, the scanning period is less than or equal to a preset period.

In the embodiment of the present invention, the capacitive touch circuit detects, in the second period of the scanning cycle: the capacitance value of the key link. The second time period may be set according to a degree of convenient input to the mobile terminal. In the embodiment of the present invention, this is not particularly limited.

Specifically, the first time period in one scanning period is detected by time division multiplexing of the capacitive touch circuit: and the coupling capacitance between the first communication radio frequency link and the human body is detected in a second period in the scanning cycle: the capacitance value of the key link is used for judging whether the key link receives the target operation. The target operation may be pressing, touching, or the like. In the embodiment of the present invention, this is not particularly limited.

In a scanning cycle, the capacitive touch circuit can allocate a first time period for detecting a first communication radio frequency link and a second time period for detecting a key link and the like according to SAR reduction and the requirement of a mobile terminal on flexible and rapid input operation. In the embodiment of the present invention, this is not particularly limited.

In the embodiment of the present invention, in the case where the duration of the second period is greater than 0, the scanning period is less than or equal to the preset period. The preset period can be set according to the requirements of the mobile terminal on flexible and quick input operation and the like. That is, if the capacitance value of the key link needs to be detected, the scanning period of the capacitive touch circuit can be set to be smaller, so as to meet the requirement of the key link on real-time detection.

For example, fig. 3 is a schematic diagram illustrating a scanning cycle of a capacitive touch circuit according to an embodiment of the invention. Under the condition that the capacitive touch circuit is not multiplexed, that is, under the condition that the capacitive touch circuit only detects the coupling capacitance between the first communication radio frequency link and the human body, because the real-time requirement on the coupling capacitance between the first communication radio frequency link and the human body is relatively low, the scanning period of the capacitive touch circuit can be 100ms, and if the sampling time of the first communication radio frequency link is Tsar. Then, the capacitive touch circuit only works within the sampling time Tsar of the first communication radio frequency link within 100ms of one scanning period, and the rest time is idle. If there are two key links, and the sampling time of the two key links is Tkey1 and Tkey2, respectively, then, under the condition that the capacitive touch circuit is multiplexed, since the real-time property of the input operation received by the key link for the preset application may be higher than the real-time property requirement of the coupling capacitance between the first communication radio frequency link and the human body, the scanning period of the capacitive touch circuit may be shortened. For example, the scanning period of the capacitive touch circuit may be 10 ms. The working time may be the sum of the sampling time Tsar of the first communication rf link and the Tkey1 and Tkey2 within 10ms of the scanning period of the capacitive touch circuit, and the remaining time is idle. The capacitive touch circuit detects the coupling capacitance between the first communication radio frequency link and a human body within the sampling time Tsar of the first communication radio frequency link within 10ms of a scanning period, and detects whether the two key links respectively receive input operation aiming at preset application within the time of Tkey1 and Tkey 2. Then, within one scanning period of 10ms, the first period may be the sampling time Tsar of the first communication radio frequency link, and the second period may be the sum of the sampling time Tkey1 of the key link and the sampling time Tkey2 of the key link.

In the embodiment of the present invention, the preset capacitance value may be preset, and the preset capacitance value may represent that the key link is used as an inductive electrode of a capacitor and receives a target operation. The capacitance touch circuit compares the capacitance value detected from the key link with the preset capacitance value, and if the capacitance value detected from the key link is greater than or equal to the preset capacitance value, it can be shown that the key link receives a target operation. If the capacitance value detected from the key link is smaller than the preset capacitance value, it can indicate that the key link does not receive the target operation. In the embodiment of the present invention, this is not particularly limited.

In this embodiment of the present invention, optionally, the key link includes: a second communication radio frequency link; the second communication radio frequency link is electrically connected with the first radio frequency control circuit and the capacitance touch control circuit; the first radio frequency control circuit and the capacitance touch control circuit control the second communication radio frequency link in a frequency division manner; the second communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the first radio frequency control circuit; the second communication radio frequency link has an exposed operating area.

Specifically, the second communication radio frequency link is multiplexed into a key link. That is to say, the second communication link can be used as a radio frequency antenna for transmitting or receiving radio frequency signals, and can also be used as an induction electrode of a capacitor to detect whether input operation aiming at preset application is received. The first radio frequency control circuit can be a radio frequency chip and the like. In the embodiment of the present invention, this is not particularly limited. The second communication RF link may be electrically connected to the first RF control circuit and the capacitor control circuit simultaneously. The second communication rf link may be controlled by the first rf control circuit to transmit or receive rf signals as an rf antenna. The second communication radio frequency link can be used as an induction electrode of a capacitor to detect whether the second communication radio frequency link receives input operation aiming at preset application under the control of the capacitive touch control circuit. The capacitive touch circuit and the first radio frequency control circuit control the second communication radio frequency link to execute different operations in a frequency division mode. The capacitive touch circuit and the first radio frequency control circuit may be set according to actual needs for frequency division bands and the like of the second communication radio frequency link, which is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, for the convenience of user operation and the like, the second communication rf link needs to have an exposed operation area. That is, a part of the second communication rf link may be exposed on the surface of the frame of the mobile terminal.

The step 102 may include: in the scanning cycle, the capacitive touch circuit detects, in the second period of time: a capacitance value of the second communication radio frequency link. Specifically, not only the capacitive touch circuit but also the second communication radio frequency link are multiplexed, and the operation area leaked by the second communication radio frequency link is used as an induction electrode of the capacitor, so as to detect the capacitance value of the second communication radio frequency link. In the operating area, the capacitance value of the second communication radio frequency link is greater than or equal to the preset capacitance value under the condition that the target operation is received. And under the condition that the target operation is not received by the operation area, the capacitance value of the second communication radio frequency link is smaller than the preset capacitance value. Then, if the capacitance value detected from the second communication rf link is smaller than the preset capacitance value, it may indicate that the target operation is not received by the operation area. If the capacitance value detected from the second communication radio frequency link is greater than or equal to the preset capacitance value, it may indicate that the target operation is received by the operation area.

In the embodiment of the invention, the second communication radio frequency link is subjected to frequency division multiplexing, the second communication link can be used as a radio frequency antenna to send or receive radio frequency signals, and whether a target operation is received in an exposed operation area of the second communication radio frequency link can be subjected to frequency division detection under the control of the capacitive touch circuit, so that a key link does not need to be independently arranged, the link is reduced, the space is saved, and the resource waste is reduced. In a relatively fixed space, the larger the number of links, the smaller the interval between the links, and thus the larger the interference between the links, and the interference between the links can be reduced to a great extent by reducing the links.

In the embodiment of the present invention, the first rf control circuit is electrically connected to the second communication rf link through a capacitor; the capacitance touch circuit is electrically connected with the second communication radio frequency link through an inductor.

Specifically, referring to fig. 4, fig. 4 is a schematic diagram illustrating a connection between a second communication rf link and a capacitive touch circuit and a first rf control circuit according to an embodiment of the present invention. Typically the frequency of the radio frequency signal is higher and the frequency of the capacitance value of the second communication radio frequency link resulting from the target operation is lower. The inductor has the characteristic of passing low frequency and high frequency, and the capacitor has the characteristic of passing high frequency and low frequency. The first rf control circuit 15 is electrically connected to the second communication rf link 16 through a capacitor, so that the second communication rf link 16 is used as an rf antenna to transmit or receive high-frequency rf signals under the control of the first rf control circuit 15. The capacitive touch circuit 17 is electrically connected to the second communication rf link 16 through an inductor, so that the second communication rf link 16 is used as an inductive electrode of a capacitor to detect a capacitance value of the second communication rf link 16 under the control of the capacitive touch circuit.

In the embodiment of the invention, the capacitor, the inductor and the like are generally low in price and convenient to obtain, the circuit is simple, and the second communication radio frequency link can be conveniently multiplexed with low cost through the capacitor and the inductor.

And 103, executing target operation under the condition that the capacitance value of the key link is greater than or equal to a preset capacitance value.

In the embodiment of the present invention, the target operation received by the key link may have a preset corresponding relationship with the operation instruction, and the like. When the target operation is received, an operation instruction corresponding to the target operation can be executed in the mobile terminal. For example, in some preset applications, an operation instruction corresponding to the target operation may be executed.

In the embodiment of the invention, the preset application can be an application which can be operated smoothly or won only by inputting operation flexibly and quickly. For example, the preset application may be a game application that requires flexible and convenient operation. The number of the preset applications may be one or more, and is not particularly limited in the embodiment of the present invention.

For example, referring to fig. 2, the key link in fig. 2 may include: a key link 1 close to the first communication rf link 13 and a key link 2 remote from the first communication rf link 13. If the preset application comprises the game application A. If the preset corresponding relation is as follows: the key link 1 in the game application A receives 1 time of target operation, the corresponding operation instruction is that the user corresponding to the game application A changes the cartridge clip, the key link 1 in the game application A receives 2 times of continuous target operation, and the corresponding operation instruction is that the user corresponding to the game application A changes the weapon. The key link 2 in the game application a receives 1 target operation, the corresponding operation instruction is that the character corresponding to the user in the game application a rotates 90 degrees leftwards, the key link 2 in the game application a receives 2 continuous target operations, and the corresponding operation instruction is that the character corresponding to the user in the game application a rotates 90 degrees rightwards. If the capacitive touch circuit detects that 1 target operation is received for the key link 1 in the game application a, in this step, the user's corresponding character in the game application a is swapped.

In the embodiment of the invention, the user performs target operation on the mobile terminal through the key link while performing input through an input device such as a screen and a microphone. Because the position of the target operation is on the frame of the mobile terminal, the position is different from the operation positions of a screen and the like of the mobile terminal, the input modes are also different, and further the interference or influence among the multiple operations is small, a user can conveniently carry out multiple input operations at the same time, on one hand, the diversity of the operation modes is increased, on the other hand, the key link is arranged on the frame of the mobile terminal, the mutual interference and influence between the key link and the screen input are small, the screen and the key link are convenient to pass through, and the multiple input operations are simultaneously carried out, so that the mobile terminal can be conveniently controlled. For example, it is convenient to manipulate the above-mentioned preset application in the mobile terminal.

For example, for the above example, the capacitive touch circuit of the mobile terminal can be fully utilized by multiplexing the capacitive touch circuit, so that the utilization rate of the capacitive touch circuit is improved. By multiplexing the capacitive touch control circuit, the input operation of the preset application through the key link is increased, so that the user can operate or control the role corresponding to the user in the game application A conveniently.

In the embodiment of the present invention, in the prior art, the mobile terminal usually receives an input operation of a user through a screen, a microphone, and the like, so as to implement human-computer interaction. However, only devices such as a screen and a microphone are used for receiving input operations, and for some applications requiring convenient operations, the input mode is single, and it is difficult to perform multiple input operations simultaneously, which is inconvenient for operating the applications. According to the method and the device, the touch control circuit is only used for being connected with the first communication radio frequency link according to the capacitance, the detection of the coupling capacitance between the touch control circuit and the human body is achieved, and then under the condition that the human body is close to or the distance between a person and the first communication radio frequency link is small, the radio frequency emission power of the first communication radio frequency link is reduced, and further the radio frequency radiation to the human body is reduced. The key link is arranged in the frame, the frame is located on the outer side of the mobile terminal, the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link, and due to the fact that the real-time requirement for detection of the coupling capacitance of the human body is low, the coupling capacitance between the human bodies can be detected in a first period of a scanning period through the capacitance touch circuit, and the capacitance value of the key link can be detected in a second period of the scanning period. And under the condition that the duration of the second time interval is greater than 0, setting the scanning period of the capacitive touch circuit to be shorter, and further meeting the requirement of the key link on real-time detection. When the key link receives the target operation, the capacitance of the key link is greater than or equal to the preset capacitance. Therefore, under the condition that the capacitance value of the key link is larger than or equal to the preset capacitance value, the key link is represented to receive target operation, the target operation is executed, and further time division multiplexing of the capacitance touch circuit is achieved, the input mode of the mobile terminal is increased, on one hand, diversity of the input mode is increased, on the other hand, due to the fact that the key link is arranged on the frame of the mobile terminal and mutual interference and influence between the key link and screen input are small, the mobile terminal is convenient to pass through a screen and the key link, multiple input operations are conducted simultaneously, and further the mobile terminal is convenient to control.

Referring to fig. 5, fig. 5 is a flowchart illustrating another input method according to an embodiment of the present invention, where the input method is applied to a mobile terminal, and reference is made to the foregoing description for the mobile terminal, so that details are not repeated herein to avoid redundancy. The method may comprise the steps of:

step 201, setting the duration of the second time interval to 0 under the condition that the preset application is not started.

Specifically, when the preset application is not started, the duration of the second period is set to 0. That is to say, when the second predetermined application is not started in the mobile terminal, the capacitive touch circuit is not time-division multiplexed within the scanning period of the capacitive touch circuit. In a scanning period of the capacitive touch circuit, the capacitive touch circuit only detects a coupling capacitance between the first communication radio frequency link and the human body. The capacitor touch circuit is time-division multiplexed only under the condition that the preset application in the mobile terminal is started. And under the condition that the preset application is not started, the capacitive touch circuit is not reused, and the coupling capacitance between the first communication radio frequency link and the human body is detected through the capacitive touch circuit. Therefore, whether the key link receives input operation or not is detected under the condition that the preset application is not started, resources can be saved, and electricity is saved.

In the embodiment of the present invention, whether the preset application is started may be determined by whether a start instruction of the preset application is received or not. Or, whether the preset application is started or not can be judged by judging whether the process corresponding to the preset application runs or not. In the embodiment of the present invention, this is not particularly limited.

Step 202, adjusting the scanning period of the capacitive touch circuit to be greater than the preset period.

In the embodiment of the invention, the detection of the coupling capacitance between the first communication radio frequency link and the human body has lower requirement on real-time performance. Therefore, when the preset application with a high real-time requirement is not enabled, the scanning period of the capacitive touch circuit can be adjusted to be greater than the preset period. Furthermore, the capacitive touch circuit is idle in relatively more time, and the purpose of energy conservation can be achieved.

See, for example, fig. 3 above. Under the condition that the capacitive touch circuit is not multiplexed, that is, under the condition that the capacitive touch circuit only detects the coupling capacitance between the first communication radio frequency link and the human body, because the real-time requirement on the coupling capacitance between the first communication radio frequency link and the human body is relatively low, the scanning period of the capacitive touch circuit can be 100ms, and if the sampling time of the first communication radio frequency link is Tsar. Then, the capacitive touch circuit only works within the sampling time Tsar of the first communication radio frequency link within 100ms of one scanning period, and the rest time is idle, so that the purpose of energy saving can be achieved.

Step 203, in the scanning period after the adjustment of the capacitive touch circuit, the capacitive touch circuit detects at the first time period: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

In the embodiment of the invention, the capacitive touch control circuit does not need time division multiplexing because the preset application with higher real-time requirement is not started. In a larger scanning period after adjustment, the capacitive touch circuit only works at the sampling time of the first communication radio frequency link, and then in the larger scanning period, except the sampling time of the first communication radio frequency link, the capacitive touch circuit is idle, so that the purpose of energy conservation can be achieved.

Step 204, in the scanning cycle, the capacitive touch circuit detects in a second time period: a capacitance value of the key link; and under the condition that the duration of the second time interval is greater than 0, the scanning period is less than or equal to a preset period.

This step can be referred to the aforementioned step 102, and it should be noted that the duration of the second period is 0 here. That is, in a case where the default application is not started, the capacitive touch circuit does not detect the capacitance value of the key link during one scanning period of the capacitive touch circuit.

Step 205, executing a target operation when the capacitance value of the key link is greater than or equal to a preset capacitance value.

In the embodiment of the present invention, in step 205, reference may be made to the related description of step 103. It should be noted that, under the condition that the preset application is not started, the capacitive touch circuit does not detect the capacitance value of the key link within one scanning period of the capacitive touch circuit. Then the capacitance value of the key link can be considered to be 0. If the predetermined application is not started, the capacitance of the key link is smaller than the predetermined capacitance, and the step does not reach the execution condition.

Step 206, the first communication rf link is electrically connected to the second rf control circuit and the capacitive touch control circuit; controlling the first communication radio frequency link in a frequency division manner through the second radio frequency control circuit and the capacitance touch control circuit; and the first communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the second radio frequency control circuit.

In the embodiment of the present invention, the second rf control circuit may be an rf chip or the like. The second rf control circuit may be the same rf control circuit as the first rf control circuit or a different rf control circuit. In the embodiment of the present invention, this is not particularly limited.

In an embodiment of the present invention, the first communication rf link may be electrically connected to the second rf control circuit and the capacitor control circuit at the same time. The first communication rf link may transmit or receive rf signals under the control of the second rf control circuit. The first communication radio frequency link can be used as a capacitance sensing electrode or a capacitance sensor to detect the coupling capacitance between the first communication radio frequency link and the human body under the control of the capacitance touch control circuit. The capacitive touch control circuit and the second radio frequency control circuit control the first communication radio frequency link to execute different operations in a frequency division mode. The capacitive touch control circuit and the second radio frequency control circuit may be set according to actual needs for the frequency division band of the first communication radio frequency link, and this is not particularly limited in the embodiment of the present invention.

In the embodiment of the invention, the capacitive touch circuit is time-division multiplexed, the first communication radio frequency link is frequency-division multiplexed, the first communication radio frequency link is used as an induction electrode or a capacitive sensor of a capacitor, and the coupling capacitance between the first communication radio frequency link and a human body is detected under the control of the capacitive touch circuit. And the first communication radio frequency link is used as a radio frequency antenna, and radio frequency signals are sent or received under the control of the second radio frequency control circuit.

In the embodiment of the invention, the first communication radio frequency link is subjected to frequency division multiplexing, the first communication link not only can be used as a radio frequency antenna to send or receive radio frequency signals, but also can be used for detecting the coupling capacitance between the first communication radio frequency link and a human body in a frequency division manner, and further, the link with the inductive coupling capacitance is not required to be independently arranged, so that the link is reduced, the space is saved, and the resource waste is reduced. In a relatively fixed space, the larger the number of links, the smaller the interval between the links, and thus the larger the interference between the links, and the interference between the links can be reduced to a great extent by reducing the links.

In the embodiment of the present invention, in general, the frequency of the radio frequency signal is higher, and the frequency of the coupling capacitance between the first communication radio frequency link and the human body or the close proximity of the human body is lower. The inductor has the characteristic of passing low frequency and high frequency, and the capacitor has the characteristic of passing high frequency and low frequency. Optionally, the second radio frequency control circuit may also be electrically connected to the first communication radio frequency link through a capacitor, so that the first communication radio frequency link is used as a radio frequency antenna to transmit or receive a high-frequency radio frequency signal under the control of the second radio frequency control circuit. The capacitance touch circuit is electrically connected with the first communication radio frequency link through the inductor, so that the first communication radio frequency link is used as an induction electrode of the capacitor under the control of the capacitance touch circuit, and the coupling capacitance between the first communication radio frequency link and a human body is detected. In the embodiment of the present invention, this is not particularly limited.

For example, referring to fig. 4, the second rf control circuit and the first rf control circuit are the same rf control circuit, or the first communication rf link 13 and the second communication rf link 16 may share one rf control link, and the shared rf control link is the first rf control circuit. The first rf control circuit 15 may also be electrically connected to the first communication rf link 13 through a capacitor, and the capacitor touch control circuit 17 is electrically connected to the first communication rf link 13 through an inductor.

In the embodiment of the present invention, the execution sequence of the step 206 and the steps 201 to 205 is not particularly limited. For example, step 206 may be performed before any of steps 201 to 205 described above, or step 206 may be performed before step 201 described above, or the like. In the embodiment of the present invention, this is not particularly limited.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the embodiments of the application.

In an embodiment of the present invention, a mobile terminal is further provided, referring to fig. 6, where fig. 6 shows a block diagram of a structure of a mobile terminal provided in an embodiment of the present invention, and the mobile terminal includes: a first communication radio frequency link and a capacitive touch circuit; the mobile terminal further includes: a key link. The key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; for the first communication rf link, the key link, and the capacitive touch circuit, reference may be made to the related descriptions in the foregoing embodiments, and details are not repeated herein to avoid redundancy. The mobile terminal 600 may include:

the coupling capacitance detection module 601 is configured to, in a scanning period of the capacitive touch circuit, detect, by the capacitive touch circuit at a first time period: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

A capacitance value detection module 602, configured to detect, in the scanning cycle, at a second time interval by the capacitive touch circuit: a capacitance value of the key link.

An executing module 603, configured to execute a target operation when a capacitance value of the key link is greater than or equal to a preset capacitance value.

Optionally, the key link includes: a second communication radio frequency link; the second communication radio frequency link is electrically connected with the first radio frequency control circuit and the capacitance touch control circuit; the first radio frequency control circuit and the capacitance touch control circuit control the second communication radio frequency link in a frequency division manner; the second communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the first radio frequency control circuit; the second communication radio frequency link is provided with an exposed operation area; in addition to fig. 6, fig. 7 shows:

the capacitance value detection module 602 may include:

a capacitance value detection unit, configured to detect, in the second time period, by the capacitive touch circuit, in the scanning cycle: a capacitance value of the second communication radio frequency link.

Optionally, the first radio frequency control circuit is electrically connected to the second communication radio frequency link through a capacitor; the capacitance touch circuit is electrically connected with the second communication radio frequency link through an inductor.

Optionally, under the condition that the preset application is not started, the mobile terminal further includes:

a second time period setting module 604, configured to set a duration of the second time period to 0;

a scanning period setting module 605, configured to adjust a scanning period of the capacitive touch circuit to be greater than the preset period;

the coupling capacitance detection module 601 may include:

a coupling capacitance detecting unit 6011, configured to, in a scanning period after the adjustment of the capacitive touch circuit, detect, by the capacitive touch circuit at the first time period: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

Optionally, the first communication radio frequency link is electrically connected to the second radio frequency control circuit and the capacitive touch control circuit; the mobile terminal further includes:

a control module 606, configured to perform frequency division control on the first communication radio frequency link through the second radio frequency control circuit and the capacitive touch control circuit; and the first communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the second radio frequency control circuit.

The mobile terminal provided by the embodiment of the present invention can implement each process implemented by the mobile terminal in the method embodiments of fig. 1 to fig. 4, and can achieve corresponding beneficial effects, and for avoiding repetition, details are not repeated here.

Fig. 8 is a diagram illustrating a hardware configuration of a mobile terminal for implementing various embodiments of the present invention. The mobile terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the mobile terminal architecture illustrated in fig. 8 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 810 is configured to, in a scanning cycle of the capacitive touch circuit, detect, by the capacitive touch circuit in a first period: a coupling capacitance between the first communication radio frequency link and a human body;

In the embodiment of the invention, in the prior art, the mobile terminal usually receives the input operation of the user through a screen, a microphone and the like, so as to realize human-computer interaction. However, only devices such as a screen and a microphone are used for receiving input operations, and for some applications requiring convenient operations, the input mode is single, and it is difficult to perform multiple input operations simultaneously, which is inconvenient for operating the applications. According to the method and the device, the touch control circuit is only used for being connected with the first communication radio frequency link according to the capacitance, the detection of the coupling capacitance between the touch control circuit and the human body is achieved, and then under the condition that the human body is close to or the distance between a person and the first communication radio frequency link is small, the radio frequency emission power of the first communication radio frequency link is reduced, and further the radio frequency radiation to the human body is reduced. The key link is arranged in the frame, the frame is located on the outer side of the mobile terminal, the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link, and due to the fact that the real-time requirement for detection of the coupling capacitance of the human body is low, the coupling capacitance between the human bodies can be detected in a first period of a scanning period through the capacitance touch circuit, and the capacitance value of the key link can be detected in a second period of the scanning period. And under the condition that the duration of the second time interval is greater than 0, setting the scanning period of the capacitive touch circuit to be shorter, and further meeting the requirement of the key link on real-time detection. When the key link receives the target operation, the capacitance of the key link is greater than or equal to the preset capacitance. Therefore, under the condition that the capacitance value of the key link is larger than or equal to the preset capacitance value, the key link is represented to receive target operation, the target operation is executed, and further time division multiplexing of the capacitance touch circuit is achieved, the input mode of the mobile terminal is increased, on one hand, diversity of the input mode is increased, on the other hand, due to the fact that the key link is arranged on the frame of the mobile terminal and mutual interference and influence between the key link and screen input are small, the mobile terminal is convenient to pass through a screen and the key link, multiple input operations are conducted simultaneously, and further the mobile terminal is convenient to control.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The mobile terminal provides the user with wireless broadband internet access through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the mobile terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 801 in case of a phone call mode.

The mobile terminal 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8061 and/or the backlight when the mobile terminal 800 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 808 is an interface through which an external device is connected to the mobile terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 800 or may be used to transmit data between the mobile terminal 800 and external devices.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby integrally monitoring the mobile terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The mobile terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and the power supply 811 may be logically coupled to the processor 810 via a power management system that may be used to manage charging, discharging, and power consumption.

In addition, the mobile terminal 800 includes some functional modules that are not shown, and thus, are not described in detail herein.

Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 810, a memory 809, and a computer program stored in the memory 809 and capable of running on the processor 810, where the computer program, when executed by the processor 810, implements each process of the above-mentioned input method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the input method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An input method is applied to a mobile terminal, and the mobile terminal comprises the following steps: the system comprises a first communication radio frequency link, a capacitance touch circuit, a touch screen and a microphone; characterized in that, the mobile terminal further comprises: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the method comprises the following steps:

2. The method of claim 1, wherein the key link comprises: a second communication radio frequency link; the second communication radio frequency link is electrically connected with the first radio frequency control circuit and the capacitance touch control circuit; the first radio frequency control circuit and the capacitance touch control circuit control the second communication radio frequency link in a frequency division manner; the second communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the first radio frequency control circuit; the second communication radio frequency link is provided with an exposed operation area; the capacitive touch circuit detects, in a second period of time, during the scanning cycle: the capacitance value of the key link comprises:

in the scanning cycle, the capacitive touch circuit detects, in the second period of time: a capacitance value of the second communication radio frequency link.

3. The method of claim 2, wherein the first rf control circuit is electrically connected to the second communication rf link through a capacitor; the capacitance touch circuit is electrically connected with the second communication radio frequency link through an inductor.

4. The method of claim 1, wherein in a case that a predetermined application is not started, the capacitive touch circuit detects, in a first period of time, during a scanning cycle of the capacitive touch circuit: before the coupling capacitance between the first communication radio frequency link and the human body, the method further comprises:

setting a duration of the second period to 0;

adjusting the scanning period of the capacitive touch circuit to be greater than the preset period;

in a scanning period of the capacitive touch circuit, the capacitive touch circuit detects at a first time period: the coupling capacitance between the first communication radio frequency link and the human body comprises:

in the scanning period after the adjustment of the capacitive touch circuit, the capacitive touch circuit detects in the first period: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

5. The method of claim 1, wherein the first communication rf link is electrically connected to a second rf control circuit and the capacitive touch control circuit; the method further comprises the following steps:

controlling the first communication radio frequency link in a frequency division manner through the second radio frequency control circuit and the capacitance touch control circuit; and the first communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the second radio frequency control circuit.

6. A mobile terminal, the mobile terminal comprising: the system comprises a first communication radio frequency link, a capacitance touch circuit, a touch screen and a microphone; characterized in that, the mobile terminal further comprises: a key link; the key link is arranged on a frame of the mobile terminal; the capacitance touch circuit is electrically connected with the first communication radio frequency link and the key link; the mobile terminal further includes:

a coupling capacitance detection module, configured to detect, in a scanning period of the capacitive touch circuit, at a first time period through the capacitive touch circuit: a coupling capacitance between the first communication radio frequency link and a human body;

a capacitance value detection module, configured to detect, in the scanning cycle, at a second time period through the capacitive touch circuit: a capacitance value of the key link;

7. The mobile terminal of claim 6, wherein the key link comprises: a second communication radio frequency link; the second communication radio frequency link is electrically connected with the first radio frequency control circuit and the capacitance touch control circuit; the first radio frequency control circuit and the capacitance touch control circuit control the second communication radio frequency link in a frequency division manner; the second communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the first radio frequency control circuit; the second communication radio frequency link is provided with an exposed operation area;

the capacitance value detection module includes:

a capacitance value detection unit, configured to detect, in the second time period within the scanning cycle, by the capacitive touch circuit: a capacitance value of the second communication radio frequency link.

8. The mobile terminal of claim 7, wherein the first radio frequency control circuit is electrically connected to the second communication radio frequency link through a capacitor; the capacitance touch circuit is electrically connected with the second communication radio frequency link through an inductor.

9. The mobile terminal according to claim 6, wherein in case that the preset application is not started, the mobile terminal further comprises:

a second time period setting module, configured to set a duration of the second time period to 0;

the scanning period setting module is used for adjusting the scanning period of the capacitive touch circuit to be larger than a preset period;

the coupling capacitance detection module includes:

a coupling capacitance detection unit, configured to detect, in the scanning period after the adjustment of the capacitive touch circuit, at the first time period through the capacitive touch circuit: and the coupling capacitor is arranged between the first communication radio frequency link and the human body.

10. The mobile terminal of claim 6, wherein the first communication RF link is electrically connected to a second RF control circuit and the capacitive touch control circuit; the mobile terminal further includes:

the control module is used for controlling the first communication radio frequency link in a frequency division mode through the second radio frequency control circuit and the capacitance touch control circuit; and the first communication radio frequency link is used as a radio frequency antenna to transmit or receive radio frequency signals under the control of the second radio frequency control circuit.

11. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the input method according to any one of claims 1 to 5.