CN113452835B - Method and device for controlling vibration of terminal - Google Patents

Method and device for controlling vibration of terminal Download PDF

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CN113452835B
CN113452835B CN202110717522.3A CN202110717522A CN113452835B CN 113452835 B CN113452835 B CN 113452835B CN 202110717522 A CN202110717522 A CN 202110717522A CN 113452835 B CN113452835 B CN 113452835B
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signal
real
sampling value
audio signal
amplification factor
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CN113452835A (en
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陈朝喜
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72484—User interfaces specially adapted for cordless or mobile telephones wherein functions are triggered by incoming communication events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/047—Vibrating means for incoming calls

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Multimedia (AREA)
  • User Interface Of Digital Computer (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Studio Devices (AREA)

Abstract

The disclosure relates to a method and a device for controlling vibration of a terminal, and belongs to the technical field of computers. The method comprises the following steps: acquiring control information; generating a driving signal for a motor according to the variation trend of the control information; and driving the motor to vibrate according to the driving signal, wherein the variation trend of the control information is in positive correlation with the vibration intensity of the motor. The vibration strength control device solves the problem that when vibration can be carried out only with one vibration strength, the effect is single, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.

Description

Method and device for controlling vibration of terminal
The application is a divisional application of an invention patent application with the application number of 201810573520.X and the name of 'method and device for controlling terminal vibration' which is filed in 2018, 06 months and 06 days.
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for controlling terminal vibration.
Background
Vibration feedback is one of the necessary functions of the terminal. For example, when the terminal receives an incoming call or a short message, the user is prompted through vibration feedback, so that the user can check the terminal in time.
Disclosure of Invention
To solve the problems in the related art, the present disclosure provides a method and apparatus for controlling vibration of a terminal.
According to a first aspect of embodiments of the present disclosure, there is provided a method of controlling vibration of a terminal, the method including:
acquiring control information;
generating a driving signal for a motor according to the variation trend of the control information;
and driving the motor to vibrate according to the driving signal, wherein the variation trend of the control information is in positive correlation with the vibration intensity of the motor.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for controlling vibration of a terminal, the apparatus including:
an acquisition module configured to acquire control information;
the generation module is configured to generate a driving signal for a motor according to the variation trend of the control information obtained by the acquisition module;
a driving module configured to drive the motor to vibrate according to the driving signal generated by the generating module, wherein the variation trend of the control information has a positive correlation with the vibration intensity of the motor.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for controlling vibration of a terminal, the apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring control information;
generating a driving signal for a motor according to the variation trend of the control information;
and driving the motor to vibrate according to the driving signal, wherein the variation trend of the control information is in positive correlation with the vibration intensity of the motor.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored therein at least one instruction, at least one program, set of codes, or set of instructions, which is loaded and executed by the processor to implement the method of controlling vibration of a terminal according to the first aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the driving signal to the motor is generated according to the variation trend of the control information, the motor is driven to vibrate by the driving signal, and the variation trend of the control information is in positive correlation with the vibration intensity of the motor, so that the vibration intensity of the motor can be enhanced when the control information is increased, and the vibration intensity of the motor can be reduced when the control information is decreased, thereby solving the problem that the effect is single when only one vibration intensity is used for vibration, and improving the vibration effect. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a method of controlling vibration of a terminal according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a method of controlling vibration of a terminal according to another exemplary embodiment.
Fig. 3 is a flow chart illustrating a process from acquiring an audio signal to driving a motor to vibrate according to another exemplary embodiment.
Fig. 4 is a flowchart illustrating a method of controlling vibration of a terminal according to another exemplary embodiment.
Fig. 5 is a schematic diagram illustrating one manner of connecting various components in a terminal according to another exemplary embodiment.
Fig. 6 is a flowchart illustrating a method of controlling vibration of a terminal according to another exemplary embodiment.
Fig. 7 is a flowchart illustrating a method of controlling vibration of a terminal according to another exemplary embodiment.
Fig. 8 is a block diagram illustrating an apparatus for controlling vibration of a terminal according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating an apparatus for controlling vibration of a terminal according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a method of controlling vibration of a terminal, which is applied to the terminal according to an exemplary embodiment, and includes the following steps, as shown in fig. 1.
In step 101, control information is acquired.
In step 102, a driving signal for the motor is generated according to the variation trend of the control information.
In step 103, the motor is driven to vibrate according to the driving signal, and the variation trend of the control information is in positive correlation with the vibration intensity of the motor.
In summary, according to the method for controlling vibration of a terminal provided by the present disclosure, the driving signal for the motor is generated according to the variation trend of the control information, and the motor is driven to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with the vibration intensity of the motor, the vibration intensity of the motor can be enhanced when the control information becomes larger, and the vibration intensity of the motor can be reduced when the control information becomes smaller, so that the problem of single effect when only one vibration intensity is used for vibration is solved, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
The control information is one of an audio signal, a contact area between a finger and a fingerprint acquisition area, a dynamic picture, and focusing information of a lens, and the following describes technical solutions for controlling terminal vibration by the four control information with four embodiments.
Before describing the four technical schemes, the structure of the terminal is described. The terminal may include an AP (Application Processor), a PMI (Power Manager circuit) connected to the AP, and a motor connected to the PMI, and may further include a driving chip (IC) of the motor for driving the motor to vibrate. In this embodiment, the driving chip may be located in the AP, the PMI, or the motor.
Fig. 2 is a flowchart illustrating a method of controlling vibration of a terminal, which is applied to a terminal, according to another exemplary embodiment, and the present embodiment is described by taking an example in which control information is an audio signal. As shown in fig. 2, the method of controlling vibration of a terminal includes the following steps.
In step 201, control information is acquired.
The control information in this embodiment is an audio signal. The audio signal may be any signal that can be recognized and played by the terminal, such as an audio signal of a song, an audio signal of a video, an audio signal of a voice message, an audio signal of a game, an audio signal of an incoming ringtone, an audio signal of an informational ringtone, and the like, and the embodiment is not limited.
When the terminal receives the audio signal, a part of the audio signal is separated and sent to an external amplifier (speak) and a receiver so as to ensure that the terminal can normally play the audio signal, and a part of the audio signal is sent to a driving chip, and the driving chip acquires the audio signal.
In step 202, when the control information is an audio signal, the audio signal is analyzed to obtain a first signal and a second signal, where the first signal is used to represent an envelope of the audio signal, and the second signal is used to represent a frequency and a phase of the audio signal.
Because the audio signal received by the driving chip is weak, before the audio signal is analyzed, the driving chip can also amplify the audio signal, and then filter and filter noises such as burrs and the like introduced in the amplification process, so that the filtered audio signal and the audio signal played by the terminal have the same frequency, and the audio signal to be analyzed is obtained.
It should be noted that, in this embodiment, the driver chip amplifies and filters the audio signal as an example, in an optional implementation manner, the terminal may also amplify and filter the audio signal, send the obtained audio signal to be analyzed to the driver chip, and the driver chip directly analyzes the audio signal.
The driving chip analyzes the audio signal to obtain a first signal and a second signal, which is not limited in the embodiment.
Assuming that the audio signal is f (t) ═ a (t) × sin [ ω (t) + Φ ], a (t) is the amplitude of the audio signal, i.e. the envelope, ω (t) is the frequency of the audio signal, and Φ is the phase of the audio signal, the first signal resolved by the driving signal may be a (t), and the second signal may be sin [ ω (t) + Φ ].
In step 203, the real-time amplification factor of the first signal is determined according to the variation trend of the first signal.
Step 203 may include the following substeps:
in sub-step 2031, the first signal is sampled.
The driving chip may perform ADC (Analog-to-Digital Converter) sampling on the first signal, and the present embodiment does not limit the sampling frequency.
And when each sampling value is obtained, the driving chip calculates the amplitude of the sampling value, takes the amplitude of the sampling value as the amplitude of the current sampling value, acquires the amplitude of the previous sampling value again, and compares the two amplitudes.
In sub-step 2032, a real-time magnification greater than 1 is determined when the magnitude of the current sample value is greater than the magnitude of the previous sample value.
Real-time amplification refers to amplification generated in real time from sampled values. Hypothesis driverThe maximum driving voltage that the movable chip can output is VmaxThe maximum amplitude of the audio signal is V1The maximum value of the real-time magnification F is Vmax/V1。
When the amplitude of the current sampling value is larger than that of the previous sampling value, the real-time amplification factor is larger than 1, and the real-time amplification factor is equivalent to increasing the amplitude of the current sampling value on the basis of the amplitude of the current sampling value.
In sub-step 2033, the real-time magnification is determined to be 1 when the magnitude of the current sample value is equal to the magnitude of the previous sample value.
When the amplitude of the current sampling value is equal to the amplitude of the previous sampling value, the real-time amplification factor is equal to 1, and at this time, the amplitude of the current sampling value is kept unchanged, namely, the amplitude is neither amplified nor reduced.
In sub-step 2034, a real-time magnification factor of less than 1 is determined when the magnitude of the current sample value is less than the magnitude of the previous sample value.
When the amplitude of the current sampling value is smaller than that of the previous sampling value, the real-time amplification factor is smaller than 1, and at the moment, the amplitude is reduced on the basis of the amplitude of the current sampling value.
It should be noted that, the method may determine that the real-time amplification factor approximately changes, but cannot determine the actual value of the real-time amplification factor, and therefore, in this embodiment, the driving chip may further calculate a slope between the amplitude of the current sampling value and the amplitude of the previous sampling value, and determine the actual value of the real-time amplification factor according to the slope. Wherein, the size of the slope is in positive correlation with the size of the real-time magnification. Of course, the driving chip may also calculate the actual value of the real-time amplification factor through other algorithms, and this embodiment is not limited.
In step 204, the first signal is amplified according to the real-time amplification factor.
The driving chip may amplify the first signal according to the obtained real-time amplification factor, and the embodiment does not limit the amplification manner of the first signal.
Assuming that the first signal is a (t), the real-time amplification factor is f (t), and the amplified first signal is a (t) × f (t).
It should be noted that after the amplitude of the current sampling value is amplified, the amplitude may approach or equal to VmaxAnd cannot exceed Vmax。
Taking the example where the audio signal is a sine wave f (t) (a) (t) sin [ ω (t) + Φ ], the amplification or reduction is in units of 1/4 cycles. For example, if the values in the front 1/4 period and the rear 1/4 period of the sine wave are in an ascending trend, the real-time magnification factor is greater than 1; the real-time amplification factor is less than 1 if the value in the middle 1/2 cycle of the sine wave is decreasing.
In step 205, the second signal is multiplied by the amplified first signal to obtain the driving signal.
Assuming that the audio signal is f (t) ═ a (t)' sin [ ω (t) + Φ ], and the real-time amplification factor is f (t), the driving signal is f (t) ═ a (t) (t) × f (t) ([ ω (t) + Φ).
In step 206, the motor is driven to vibrate according to the driving signal.
The motor will vibrate along with the audio signal.
Referring to fig. 3, a flow chart from the acquisition of the audio signal to the vibration of the driving motor of the terminal is shown.
In summary, according to the method for controlling vibration of a terminal provided by the present disclosure, the driving signal for the motor is generated according to the variation trend of the control information, and the motor is driven to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with the vibration intensity of the motor, the vibration intensity of the motor can be enhanced when the control information becomes larger, and the vibration intensity of the motor can be reduced when the control information becomes smaller, so that the problem of single effect when only one vibration intensity is used for vibration is solved, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
Fig. 4 is a flowchart illustrating a method of controlling vibration of a terminal, which is applied to a terminal, according to another exemplary embodiment, and the present embodiment is described by taking an example in which control information is a contact area of a finger with a fingerprint collection area. As shown in fig. 4, the method of controlling the vibration of the terminal includes the following steps.
In step 401, the contact area is measured by the fingerprint sensor while fingerprint information is being acquired.
In this embodiment, the terminal further includes a fingerprint sensor, and the fingerprint sensor may be connected to the driver chip in the PMI in addition to the AP, please refer to fig. 5, which shows a schematic diagram of a connection manner of each component in the terminal.
When a finger presses on the fingerprint sensor, the contact area between the finger and the fingerprint sensor is larger as the pressing pressure is larger, so that the pressing pressure can be represented by the contact area. For example, the relationship between contact area and pressure may be represented by a linear relationship of the formula S ═ K ×, F, where S is the contact area, K is the coefficient, and F is the pressure.
Step 401 may include the following substeps:
in sub-step 4011, the number of pixel points receiving the touch signal generated when the finger contacts the fingerprint sensor is counted by the fingerprint sensor.
When the finger is pressed on the fingerprint sensor, the larger the contact area is, the more the number of the pixel points receiving the touch signal is, so that the contact area of the finger and the fingerprint sensor can be embodied according to the number of the pixel points.
In sub-step 4012, the contact area is calculated by the fingerprint sensor from the number and the area of the pixel points.
Since the area of each pixel is fixed and known, the driving chip can multiply the area of a single pixel by the number of pixels receiving the touch signal to obtain the contact area.
In step 402, the contact area is sent to the driver chip of the motor by the fingerprint sensor.
In this embodiment, the fingerprint sensor can send this area of contact to the AP after obtaining the area of contact, forwards to driver chip by the AP to driver chip controls the motor vibration according to area of contact. Because it takes a certain time to forward the contact area through the AP, resulting in response delay, optionally, the fingerprint sensor may also directly send the contact area to the driver chip, and the timeliness of the vibration is improved through hardware triggering.
In step 403, the contact area is obtained by the driver chip.
In step 404, determining a variation trend of the driving signal according to the variation trend of the contact area by the driving chip.
The driving signal may be a voltage or a current.
In this embodiment, the variation trend of the contact area and the variation trend of the driving signal are in a positive correlation, so that the contact area at the current time can be obtained, and the contact area at the current time is compared with the contact area at the previous time. When the contact area at the current moment is larger than that at the previous moment, determining that the driving signal is increased; when the contact area at the current moment is equal to the contact area at the previous moment, determining that the driving signal is unchanged; when the contact area at the present time is smaller than the contact area at the previous time, it is determined that the drive signal becomes small.
Optionally, in this embodiment, when the fingerprint sensor sends the contact area to the AP, the AP may compare the contact area at the current moment with the contact area at the previous moment, and send the comparison result flag to the driver chip; when the fingerprint sensor sends the contact area to the driver chip, the driver chip may compare the contact area at the current time with the contact area at the previous time, which is not limited in this embodiment.
In one possible implementation, when the contact area at the current moment is larger than that at the previous moment, flag is set to be greater than 0; when the contact area at the current moment is equal to that at the previous moment, setting flag to be 0; and when the contact area at the current moment is smaller than that at the previous moment, setting flag to be less than 0.
In step 405, a driving signal at the current time is generated according to the driving signal at the previous time and the trend of the driving signal.
The driving chip can adjust the driving signal in a fixed step length on the basis of the driving signal at the previous moment to obtain the driving signal at the current moment; or, the driving chip may adjust the driving signal according to the magnitude of the slope of the change of the contact area on the basis of the driving signal at the previous time, so as to obtain the driving signal at the current time. Wherein, the magnitude of the slope is in positive correlation with the variation magnitude of the driving signal.
In step 406, a waveform is selected from the preset waveforms by the driving chip, and the motor is driven to vibrate according to the driving signal and the waveform.
The terminal is pre-stored with various shapes of waveforms, the driving chip can select one waveform, and the motor is driven to vibrate according to the driving signal and the selected waveform.
Optionally, a triggering manner, such as edge triggering, level triggering, etc., may be further configured, and the driving chip may drive the motor to vibrate according to the driving signal, the selected waveform, and the triggering manner.
The embodiment can realize the vibration feedback effect of interaction between the key and a User Interface (UI).
In summary, according to the method for controlling vibration of a terminal provided by the present disclosure, the driving signal for the motor is generated according to the variation trend of the control information, and the motor is driven to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with the vibration intensity of the motor, the vibration intensity of the motor can be enhanced when the control information becomes larger, and the vibration intensity of the motor can be reduced when the control information becomes smaller, so that the problem of single effect when only one vibration intensity is used for vibration is solved, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
Fig. 6 is a flowchart illustrating a method of controlling vibration of a terminal, which is applied to a terminal, according to another exemplary embodiment, and the present embodiment is described by taking an example in which control information is a moving picture. As shown in fig. 6, the method of controlling the vibration of the terminal includes the following steps.
In step 601, control information is acquired.
The control information in this embodiment is a moving picture. The motion picture may include a set of continuously played picture frames, such as a motion picture in GIF format.
The content of the moving picture in this embodiment may represent a process from the beginning to the end of an event. For example, the moving picture may record an explosion process, a firework setting process, a heartbeat process, a shooting process, and the like, and the embodiment is not limited.
In step 602, when the control information is a moving picture, the change speed of the gray level value of the pixel point in the predetermined area in the current picture frame is obtained when the previous picture frame in the moving picture is switched to the current picture frame.
For a first picture frame in the dynamic picture, the predetermined region can be a region with higher gray value of the pixel point; for picture frames other than the first picture frame in the dynamic picture, the predetermined region may be a region that changes when compared to the previous picture frame.
Taking a dynamic picture for recording an explosion process as an example, assuming that the radius of an explosion region in a first picture frame is 1, the radius of an explosion region in a second picture frame is 2, and the radius of an explosion region in a third picture frame is 3, the predetermined region in the first picture frame is the explosion region with the radius of 1, the predetermined region in the second picture frame is a ring region left by removing the explosion region in the first picture frame in the explosion region with the radius of 2, and the predetermined region in the third picture frame is a ring region left by removing the explosion region in the second picture frame in the explosion region with the radius of 3.
After the predetermined area is determined, the driving chip can calculate the change value of the gray value of the pixel point in the predetermined area in the current picture frame relative to the gray value of the pixel point in the predetermined area in the previous picture frame, so as to obtain the change speed.
In step 603, a variation trend of the driving signal is determined according to the variation trend of the variation speed.
After the change speed of the current picture frame is obtained, the change speed of the previous picture frame can be obtained, and when the change speed of the current picture frame is greater than that of the previous picture frame, a change trend that the change speed is increased is obtained; when the change speed of the current picture frame is equal to the change speed of the previous picture frame, obtaining the change trend with unchanged change speed; and when the change speed of the current picture frame is smaller than that of the previous picture frame, obtaining a change trend of the smaller change speed.
In this embodiment, the variation trend of the variation speed is in a positive correlation with the variation trend of the driving signal. That is, when the trend of change in the change speed is large, the drive signal becomes large; when the variation trend of the variation speed is constant, the driving signal is constant; when the variation tendency of the variation speed is small, the drive signal becomes small.
In step 604, the driving signal for playing the current picture frame is generated according to the driving signal for playing the previous picture frame and the variation trend of the driving signal.
The driving chip can adjust the driving signal by a fixed step length on the basis of the driving signal when the previous picture frame is played to obtain the driving signal when the current picture frame is played; or, the driving chip may adjust the driving signal according to the magnitude of the slope of the gray value change on the basis of the driving signal when the previous picture frame is played, so as to obtain the driving signal when the current picture frame is played. Wherein, the magnitude of the slope is in positive correlation with the magnitude of the change of the driving signal.
In step 605, a waveform is selected from preset waveforms, and the motor is driven to vibrate according to the driving signal and the waveform.
The implementation procedure of step 605 is the same as the implementation procedure of step 406, and is described in detail in step 406.
In summary, according to the method for controlling vibration of a terminal provided by the present disclosure, the driving signal for the motor is generated according to the variation trend of the control information, and the motor is driven to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with the vibration intensity of the motor, the vibration intensity of the motor can be enhanced when the control information becomes larger, and the vibration intensity of the motor can be reduced when the control information becomes smaller, so that the problem of single effect when only one vibration intensity is used for vibration is solved, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
Fig. 7 is a flowchart illustrating a method of controlling a vibration of a terminal, which is applied to a driving chip in the terminal, according to another exemplary embodiment, and the present embodiment is described taking an example in which the control information is focus information of a lens. As shown in fig. 7, the method of controlling vibration of a terminal includes the following steps.
In step 701, control information is acquired.
The control information in the present embodiment is focus information of a lens, which may be generated when a user zooms in and out a preview screen taken by the lens.
In step 702, when the control information is focus information, a displacement of the lens is determined from the focus information.
In this embodiment, the focal length adjusted by the user is actually the position of the lens, so that the first position of the lens after focusing can be determined according to the focusing information, the second position where the lens is located when the terminal starts the lens is determined, and the displacement of the lens is obtained by subtracting the second position from the first position.
In step 703, a trend of the drive signal is determined according to the trend of the displacement.
The variation trend of the displacement and the variation trend of the driving signal are in a positive correlation relationship, so that the displacement at the current moment can be obtained, and the displacement at the current moment is compared with the displacement at the previous moment. When the displacement at the current moment is larger than that at the previous moment, determining that the driving signal is increased; determining that the driving signal is unchanged when the displacement at the current moment is equal to the displacement at the previous moment; when the displacement at the present time is smaller than the displacement at the previous time, it is determined that the drive signal becomes small.
In step 704, a driving signal at the current time is generated according to the driving signal at the previous time and the trend of the driving signal.
The driving chip can adjust the driving signal in a fixed step length on the basis of the driving signal at the previous moment to obtain the driving signal at the current moment; or, the driving chip may adjust the driving signal according to the magnitude of the slope of the displacement change on the basis of the driving signal at the previous time to obtain the driving signal at the current time. Wherein, the magnitude of the slope is in positive correlation with the variation magnitude of the driving signal.
In step 705, a waveform is selected from preset waveforms, and the motor is driven to vibrate according to the driving signal and the waveform.
The implementation flow of step 705 is the same as the implementation flow of step 406, and details are described in step 406.
In summary, according to the method for controlling vibration of a terminal provided by the present disclosure, the driving signal for the motor is generated according to the variation trend of the control information, and the motor is driven to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with the vibration intensity of the motor, the vibration intensity of the motor can be enhanced when the control information becomes larger, and the vibration intensity of the motor can be reduced when the control information becomes smaller, so that the problem of single effect when only one vibration intensity is used for vibration is solved, and the vibration effect can be improved. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
Fig. 8 is a block diagram illustrating an apparatus for controlling vibration of a terminal, which is applied to the terminal according to an exemplary embodiment, and as shown in fig. 8, the apparatus for controlling vibration of a terminal includes: an acquisition module 810, a generation module 820 and a driving module 830.
The obtaining module 810 configured to obtain control information;
the generating module 820 is configured to generate a driving signal for the motor according to the variation trend of the control information obtained by the obtaining module 810;
the driving module 830 is configured to drive the motor to vibrate according to the driving signal generated by the generating module 820, and the variation trend of the control information has a positive correlation with the vibration intensity of the motor.
In summary, the apparatus for controlling vibration of a terminal according to the present disclosure generates a driving signal to a motor according to a variation trend of control information, and drives the motor to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with a vibration intensity of the motor, the vibration intensity of the motor can be increased when the control information becomes larger, and the vibration intensity of the motor can be decreased when the control information becomes smaller, thereby solving a problem of single effect when only one vibration intensity is used for vibration, and improving a vibration effect. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
Referring to fig. 8, the apparatus for controlling the vibration of the terminal includes: an acquisition module 810, a generation module 820 and a driving module 830.
The obtaining module 810 configured to obtain control information;
the generating module 820 is configured to generate a driving signal for the motor according to the variation trend of the control information obtained by the obtaining module 810;
the driving module 830 is configured to drive the motor to vibrate according to the driving signal generated by the generating module 820, and the variation trend of the control information has a positive correlation with the vibration intensity of the motor.
Optionally, the control information is one of an audio signal, a contact area between a finger and a fingerprint acquisition region, a dynamic picture, and focusing information of a lens.
Optionally, when the control information is an audio signal, the generating module 820 is further configured to:
analyzing the audio signal to obtain a first signal and a second signal, wherein the first signal is used for representing the envelope of the audio signal, and the second signal is used for representing the frequency and the phase of the audio signal;
determining real-time amplification factors of the first signals according to the variation trend of the first signals;
amplifying the first signal according to the real-time amplification factor;
and multiplying the second signal and the amplified first signal to obtain a driving signal.
Optionally, the generating module 820 is further configured to:
sampling a first signal;
when the amplitude of the current sampling value is larger than that of the previous sampling value, determining a real-time amplification factor larger than 1;
when the amplitude of the current sampling value is equal to the amplitude of the previous sampling value, determining that the real-time amplification factor is 1;
and when the amplitude of the current sampling value is smaller than that of the previous sampling value, determining the real-time magnification factor smaller than 1.
Optionally, when the control information is a contact area, the generating module 820 is further configured to:
determining the variation trend of the driving signal according to the variation trend of the contact area, wherein the variation trend of the contact area and the variation trend of the driving signal are in positive correlation;
and generating the driving signal at the current moment according to the driving signal at the previous moment and the variation trend of the driving signal.
Optionally, the obtaining module 810 is further configured to:
when fingerprint information is collected, the contact area is measured through a fingerprint sensor;
sending the contact area to a driving chip of the motor through the fingerprint sensor;
the contact area is obtained by the driving chip.
Optionally, the obtaining module 810 is further configured to:
counting the number of pixel points receiving a touch signal through a fingerprint sensor, wherein the touch signal is generated when a finger is in contact with the fingerprint sensor;
and calculating the contact area according to the number and the area of the pixel points by the fingerprint sensor.
Optionally, when the control information is a dynamic picture, the generating module 820 is further configured to:
acquiring the change speed of the gray value of a pixel point in a preset area in a current picture frame when the previous picture frame in the playing dynamic picture is switched to the current picture frame;
determining the variation trend of the driving signal according to the variation trend of the variation speed, wherein the variation trend of the variation speed is in positive correlation with the variation trend of the driving signal;
and generating a driving signal when the current picture frame is played according to the driving signal when the previous picture frame is played and the variation trend of the driving signal.
Optionally, when the control information is focus information, the generating module 820 is further configured to:
determining the displacement of the lens according to the focusing information;
determining the variation trend of the driving signal according to the variation trend of the displacement, wherein the variation trend of the displacement and the variation trend of the driving signal are in positive correlation;
and generating the driving signal at the current moment according to the driving signal at the previous moment and the variation trend of the driving signal.
Optionally, the driving module 830 is further configured to:
selecting a waveform from preset waveforms;
and driving the motor to vibrate according to the driving signal and the waveform.
In summary, the apparatus for controlling vibration of a terminal according to the present disclosure generates a driving signal to a motor according to a variation trend of control information, and drives the motor to vibrate by using the driving signal, because the variation trend of the control information has a positive correlation with a vibration intensity of the motor, the vibration intensity of the motor can be increased when the control information becomes larger, and the vibration intensity of the motor can be decreased when the control information becomes smaller, thereby solving a problem of single effect when only one vibration intensity is used for vibration, and improving a vibration effect. In addition, with the increase of various entertainment applications, vibration feedback with different vibration intensities can be provided when a user plays, so that the real-time interactive vibration experience of the user is improved.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An exemplary embodiment of the present disclosure provides an apparatus for controlling vibration of a terminal, which is capable of implementing a method for controlling vibration of a terminal provided by the present disclosure, and the apparatus for controlling vibration of a terminal includes: a processor, a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring control information;
generating a driving signal for the motor according to the variation trend of the control information;
the motor is driven to vibrate according to the driving signal, and the variation trend of the control information has positive correlation with the vibration strength of the motor.
Fig. 9 is a block diagram illustrating an apparatus 900 for controlling vibration of a terminal according to an example embodiment. For example, the apparatus 900 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 9, apparatus 900 may include one or more of the following components: processing component 902, memory 904, power component 906, multimedia component 908, audio component 910, input/output (I/O) interface 912, sensor component 914, and communication component 916.
The processing component 902 generally controls overall operation of the device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing element 902 may include one or more processors 920 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 902 can include one or more modules that facilitate interaction between processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902.
The memory 904 is configured to store various types of data to support operation at the device 900. Examples of such data include instructions for any application or method operating on device 900, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 904 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power component 906 provides power to the various components of device 900. The power components 906 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 900.
The multimedia components 908 include a screen that provides an output interface between the device 900 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 900 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 910 is configured to output and/or input audio signals. For example, audio component 910 includes a Microphone (MIC) configured to receive external audio signals when apparatus 900 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 904 or transmitted via the communication component 916. In some embodiments, audio component 910 also includes a speaker for outputting audio signals.
I/O interface 912 provides an interface between processing component 902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 914 includes one or more sensors for providing various aspects of state assessment for the device 900. For example, the sensor assembly 914 may detect an open/closed state of the device 900, the relative positioning of the components, such as a display and keypad of the apparatus 900, the sensor assembly 914 may also detect a change in the position of the apparatus 900 or a component of the apparatus 900, the presence or absence of user contact with the apparatus 900, orientation or acceleration/deceleration of the apparatus 900, and a change in the temperature of the apparatus 900. The sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 916 is configured to facilitate communications between the apparatus 900 and other devices in a wired or wireless manner. The apparatus 900 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 916 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as memory 904 comprising instructions executable by processor 920 of device 900 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the above-described method of controlling vibration of the terminal.
An exemplary embodiment of the present disclosure provides a computer readable storage medium having at least one instruction, at least one program, a set of codes, or a set of instructions stored therein, which is loaded and executed by the processor to implement the method of controlling vibration of a terminal as described above.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. A method of controlling vibration of a terminal, the method comprising:
acquiring an audio signal;
analyzing the audio signal to obtain a first signal and a second signal, wherein the first signal is used for representing the envelope of the audio signal, and the second signal is used for representing the frequency and the phase of the audio signal;
determining real-time amplification factors of the first signals according to the variation trend of the first signals;
amplifying the first signal according to the real-time amplification factor;
obtaining a driving signal for a motor based on the second signal and the amplified first signal;
driving the motor to vibrate according to the driving signal, wherein the variation trend of the audio signal is in positive correlation with the vibration intensity of the motor;
wherein the determining the real-time amplification factor of the first signal according to the variation trend of the first signal comprises:
sampling the first signal;
when the amplitude of the current sampling value is larger than that of the previous sampling value, determining the real-time amplification factor larger than 1;
when the amplitude of the current sampling value is equal to the amplitude of the previous sampling value, determining that the real-time amplification factor is 1;
when the amplitude of the current sampling value is smaller than that of the previous sampling value, determining the real-time amplification factor smaller than 1;
alternatively, the first and second electrodes may be,
the determining the real-time amplification factor of the first signal according to the variation trend of the first signal comprises the following steps:
sampling the first signal;
and determining the real-time amplification factor according to the slope between the amplitude of the current sampling value and the amplitude of the previous sampling value, wherein the real-time amplification factor and the slope are in positive correlation.
2. The method of claim 1, wherein driving the motor to vibrate according to the drive signal comprises:
selecting a waveform from preset waveforms;
and driving the motor to vibrate according to the driving signal and the waveform.
3. The method of claim 1, wherein after the obtaining the audio signal, further comprising:
separating the audio signals to obtain a first sub audio signal and a second sub audio signal; the first sub audio signal is used for playing the content of the audio signal, and the second sub audio signal is used for acquiring the driving signal.
4. An apparatus for controlling vibration of a terminal, the apparatus comprising:
an acquisition module configured to acquire an audio signal;
a generating module configured to analyze the audio signal to obtain a first signal and a second signal, wherein the first signal is used for representing an envelope of the audio signal, and the second signal is used for representing a frequency and a phase of the audio signal; determining real-time amplification factors of the first signals according to the variation trend of the first signals; amplifying the first signal according to the real-time amplification factor; obtaining a driving signal for a motor based on the second signal and the amplified first signal;
the driving module is configured to drive the motor to vibrate according to the driving signal generated by the generating module, and the variation trend of the audio signal is in positive correlation with the vibration intensity of the motor;
wherein the generation module is further configured to sample the first signal; when the amplitude of the current sampling value is larger than that of the previous sampling value, determining the real-time amplification factor larger than 1; when the amplitude of the current sampling value is equal to the amplitude of the previous sampling value, determining that the real-time amplification factor is 1; when the amplitude of the current sampling value is smaller than that of the previous sampling value, determining the real-time amplification factor smaller than 1;
or, the generating module is further configured to sample the first signal; and determining the real-time amplification factor according to the slope between the amplitude of the current sampling value and the amplitude of the previous sampling value, wherein the real-time amplification factor and the slope are in positive correlation.
5. The apparatus of claim 4, wherein the drive module is further configured to:
selecting a waveform from preset waveforms;
and driving the motor to vibrate according to the driving signal and the waveform.
6. The apparatus of claim 4, wherein the obtaining module is further configured to:
separating the audio signals to obtain a first sub audio signal and a second sub audio signal; the first sub audio signal is used for playing the content of the audio signal, and the second sub audio signal is used for acquiring the driving signal.
7. An apparatus for controlling vibration of a terminal, the apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring an audio signal;
analyzing the audio signal to obtain a first signal and a second signal, wherein the first signal is used for representing the envelope of the audio signal, and the second signal is used for representing the frequency and the phase of the audio signal;
determining real-time amplification factors of the first signals according to the variation trend of the first signals;
amplifying the first signal according to the real-time amplification factor;
obtaining a driving signal for a motor based on the second signal and the amplified first signal;
driving the motor to vibrate according to the driving signal, wherein the change trend of the audio signal is in positive correlation with the vibration intensity of the motor;
wherein the determining the real-time amplification factor of the first signal according to the variation trend of the first signal comprises:
sampling the first signal;
when the amplitude of the current sampling value is larger than that of the previous sampling value, determining the real-time amplification factor larger than 1;
when the amplitude of the current sampling value is equal to the amplitude of the previous sampling value, determining that the real-time amplification factor is 1;
when the amplitude of the current sampling value is smaller than that of the previous sampling value, determining the real-time amplification factor smaller than 1;
alternatively, the first and second electrodes may be,
the determining the real-time amplification factor of the first signal according to the variation trend of the first signal comprises the following steps:
sampling the first signal;
and determining the real-time amplification factor according to the slope between the amplitude of the current sampling value and the amplitude of the previous sampling value, wherein the real-time amplification factor and the slope are in positive correlation.
8. A computer readable storage medium, having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the method of controlling vibration of a terminal according to any one of claims 1 to 3.
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