WO2024055924A1

WO2024055924A1 - Vibration data generation method and apparatus, and electronic device and storage medium

Info

Publication number: WO2024055924A1
Application number: PCT/CN2023/117968
Authority: WO
Inventors: 柳慧芬; 施韵; 明幼林; 何亮
Original assignee: 武汉市聚芯微电子有限责任公司
Priority date: 2022-09-13
Filing date: 2023-09-11
Publication date: 2024-03-21
Also published as: CN115390673A

Abstract

A vibration data generation method and apparatus, and an electronic device and a storage medium. A vibration data generation method may comprise: acquiring first-type description parameters, which define a boundary condition of a vibration effect, wherein the first-type description parameters comprise a time parameter, a frequency parameter and an intensity parameter of the vibration effect; acquiring second-type description parameters of the vibration effect, wherein the second-type description parameters comprise one or more of a time change parameter, a frequency change parameter and an intensity change parameter; on the basis of the first-type description parameters and the second-type description parameters, determining the duration of the vibration effect, and a frequency change and an intensity change within the duration; and on the basis of the duration of the vibration effect and the frequency change and the intensity change within the duration, generating vibration data, which represents the vibration effect.

Description

Vibration data generation method, device, electronic equipment and storage medium

Technical field

The present invention relates to methods, devices, electronic equipment and storage media for generating vibration data.

Background technique

Currently, many electronic devices such as mobile phones, game controllers, virtual reality (VR) devices, etc. are equipped with vibration motors to provide vibration feedback functions. The vibration motor is driven by a specific vibration signal to output the desired vibration effect. Vibration signals can be generated based on pre-stored vibration data in a vibration effects library, or can be generated in real time based on external vibration data provided by the application. For example, when playing music or videos, vibration signals corresponding to the music or videos can be generated in real time to improve the user's audio-visual experience.

Contents of the invention

The present invention generally provides a method, device, electronic equipment and storage medium for generating vibration data, which can generate vibration data with frequency and intensity changing over time, thereby making the changes in vibration effects richer, more delicate and smoother, thus Improve user experience.

According to an embodiment, a method of generating vibration data may include: obtaining a first type of description parameters that define boundary conditions of a vibration effect, the first type of description parameters including time parameters, frequency parameters and intensity parameters of the vibration effect. ; Acquire the second type of description parameters of the vibration effect, the second type of description parameters include time variation parameters, and also include one or more of frequency variation parameters and intensity variation parameters; based on the first type of description parameters and the second type description parameter determines the duration of the vibration effect, and determines one or more of the frequency change and the intensity change within the duration; and based on the duration of the vibration effect, and in One or more of frequency changes and intensity changes within the duration generate vibration data representing the vibration effect, wherein the frequency change of the vibration effect within the duration depends in addition to the frequency parameter and the In addition to the frequency change parameter, it also depends on at least one of the intensity parameter and the intensity change parameter, and the intensity change of the vibration effect within the duration depends on the intensity parameter and the intensity change parameter. In addition, it also depends on the frequency parameter and the frequency change parameter. at least one.

In some embodiments, the second type of description parameters is decorrelated with the first type of description parameters.

In some embodiments, the time change parameter describes segmenting, extending or shortening the duration of the vibration effect; the frequency change parameter describes how the vibration effect is processed during the corresponding duration or time segment. The change curve of the frequency; the intensity change parameter describes the change curve of the intensity of the vibration effect during the corresponding duration or time segment.

In some embodiments, the change curve of the frequency and the change curve of the intensity each include one of a linear change curve, a quadratic change curve, and an exponential change curve.

In some embodiments, the frequency change parameter describes mixing or frequency conversion processing of the frequency of the vibration effect; the intensity change parameter describes the linearity or curvature of the intensity change of the vibration effect.

In some embodiments, generating vibration data representing the vibration effect includes: based on a predetermined granularity, generating a duration or a time segment of the vibration effect, time parameters, frequency parameters and intensity parameters corresponding to each granularity. sequence.

In some embodiments, when the vibration data is used for structured driving signal waveform design, the predetermined granularity is an integer multiple of half a vibration cycle. When the vibration data is used for unstructured driving signal waveform design, the predetermined granularity is a time interval corresponding to the code rate.

According to an embodiment, an apparatus for generating vibration data may include: a first acquisition unit configured to acquire a first type of description parameters defining boundary conditions of a vibration effect, the first type of description parameters including the vibration effect The duration, frequency and intensity of one or more; determining units, configured to determine the duration of the vibration effect based on the first type description parameter and the second type description parameter, and determine the frequency change and intensity change within the duration one or more of; and a generating unit configured to generate a vibration representing the vibration effect based on the duration of the vibration effect and one or more of frequency changes and intensity changes within the duration. data, wherein the frequency change of the vibration effect within the duration depends on at least one of the intensity parameter and the intensity change parameter in addition to the frequency parameter and the frequency change parameter, and In addition to the intensity parameter and the intensity change parameter, the intensity change of the vibration effect within the duration also depends on at least one of the frequency parameter and the frequency change parameter.

In some embodiments, the device may further include other modules for performing the above vibration data generation method.

According to an embodiment, an electronic device may include: a processor; and a memory, in which instructions are stored, which when executed by the processor, cause the electronic device to perform the above method for generating vibration data.

According to an embodiment, a readable storage medium is provided, in which instructions are stored, which when executed by a processor, cause the processor to execute the above method for generating vibration data.

The above and other features and advantages of the present invention will become apparent from the following description of exemplary embodiments taken in conjunction with the accompanying drawings.

Description of drawings

Figure 1 shows a schematic graph of a vibration signal.

Figure 2 shows a flow chart of a vibration data generation method according to an embodiment of the present invention.

FIG. 3 shows a schematic diagram of the boundary conditions of the vibration effect defined by the first type of description parameters according to an embodiment of the present invention.

FIG. 4 shows a schematic graph of the frequency and intensity of the vibration effect defined by the first type of description parameter and the second type of description parameter together according to an embodiment of the present invention.

Figure 5 shows a schematic graph of vibration data generated according to an embodiment of the present invention.

Figure 6 shows a functional block diagram of an apparatus for generating vibration data according to an embodiment of the present invention.

FIG. 7 shows a structural block diagram of an electronic device for generating vibration data according to an embodiment of the present invention.

Detailed ways

Some exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In order to clearly and completely describe these exemplary embodiments, the following description provides certain specific details. It is to be understood, however, that the invention should not be limited to the specific details of these exemplary embodiments. Rather, embodiments of the invention may be practiced without these specific details or in alternative ways without departing from the spirit and principles of the invention as defined by the claims.

In practical applications, it is expected to provide different vibration effects in response to different events. Figure 1 shows an example of a vibration signal representing a vibration effect, which includes multiple vibration units (Figure 1 shows 5 vibration units), which are connected in sequence to form a complete vibration effect. The vibration unit can be understood as the basic (minimum) unit of the vibration effect, and each vibration unit can be defined by frequency F, intensity I and time T. The frequency F is the number of complete vibrations (corresponding to 2π phase changes) completed by the vibration motor in unit time, which represents the speed of the vibration; the intensity I represents the severity of the vibration, which depends on the mapping relationship and can be determined by the driving current or voltage, displacement , speed, acceleration and other vibration attribute data; time T can include the start time of the vibration unit, which can be a relative start time or an absolute start time, and the duration of the vibration unit. Therefore, by using the frequency parameter F, the intensity parameter I, and the time parameter T to define each vibration unit, the desired vibration effect can be obtained.

However, the vibration effect thus defined still has some shortcomings. As shown in Figure 1, the vibration signal within each vibration unit has the same frequency F and intensity I, and its outline is roughly rectangular in shape. On the one hand, the vibration effect within each vibration unit is relatively single and lacks flexible changes; on the other hand, the changes in frequency F and intensity I between adjacent vibration units are relatively abrupt. Therefore, it is difficult to produce a vibration effect with rich vibration, delicate changes, and smoothness, resulting in poor user experience.

Exemplary embodiments of the present invention provide a method, device, electronic device, and storage medium for generating vibration data, which can generate more complex vibration data, thereby providing richer vibration design. In an exemplary embodiment of the present invention, in addition to the traditional parameters describing frequency, intensity and time, additional parameters are also provided to describe the changes in time parameters and the variation curves of frequency and intensity over time, thereby based on each vibration unit The description parameters can generate vibration data with frequency and intensity changing over time, making the changes in the generated vibration effects richer and more delicate, and the changes between vibration units smoother, thus improving the user experience.

Figure 2 shows a flow chart of a vibration data generation method 100 according to an embodiment of the present invention. The method 100 can be executed at an electronic device that provides a vibration feedback function. Examples of such electronic devices include but are not limited to mobile phones and portable media players. devices, personal digital assistants, game controllers, virtual reality (VR) devices and wearable devices, etc.

Referring to Figure 2, in step 110, first type description parameters defining boundary conditions of the vibration effect are obtained. In this application, the first type of description parameters are the traditional parameters describing the time T, frequency F and intensity I of the vibration effect. In some embodiments, the vibration effect can be represented by a plurality of consecutive identical or different vibration units, and each vibration unit can be defined by a time parameter T, a frequency parameter F and an intensity parameter I. The time parameter T may define the start time of the vibration unit, which may be a relative start time or an absolute start time, and the duration of the vibration unit, which may be a duration length, or may be the end time point of the vibration unit. The frequency parameter F is the time the vibration motor completes in unit time The number of complete vibrations (corresponding to 2π phase changes), which can indicate the speed of vibration. The intensity parameter I represents the severity of the vibration, which depends on the mapping relationship and can be represented by vibration attribute data such as driving current or voltage, displacement amplitude, speed, acceleration, etc.

The above-mentioned first type of description parameters, namely the time parameter T, the frequency parameter F and the intensity parameter I, define the boundary conditions of the vibration effect, an example of which is shown in Figure 3. Figure 3 schematically shows three vibration units, in which the start and end times of the first vibration unit are T ₁ and T ₂ respectively, the start and end frequencies are F ₁ and F ₂ respectively, and the start and end intensities are I ₁ and I ₂ respectively. For the sake of simplicity, the start and end time, frequency and intensity of the latter two vibration units are not marked in Figure 3. It can be understood that in some embodiments, the first type of description parameters of each vibration unit may include start and stop time, start and stop frequency, and start and stop intensity; or in other embodiments, the start time, frequency, and intensity of the next vibration unit may As the end time, frequency and intensity of the previous vibration unit, each vibration unit can be defined by only one time parameter T, frequency parameter F and intensity parameter I, combined with the first type description parameters of the next vibration unit to determine the current vibration Boundary conditions for vibration effects in the element. In the example shown in Figure 3, it can be considered that during the duration of each vibration unit, its vibration frequency and intensity change linearly between the starting and stopping frequencies and the starting and stopping intensity, respectively.

It can be understood that the first type of description parameter is not limited to any specific expression form. For example, the first type of description parameter can be a relative value, an absolute value, or a union expression. For example, the time parameter (100,300) can mean that the relative start time is 100ms and the duration is 300ms. For example, the frequency parameter 160 can represent a frequency of 160Hz; the frequency parameter -50 can represent a deviation of -50Hz from the frequency f0, and the dynamic calculation is (f0-50)Hz, where f0 is the resonant frequency of the vibration motor; the frequency parameter (75, 20 ) can represent (75+20)Hz or (f0+75*20%)Hz. Alternatively, the frequency parameter (160, -50) can indicate that the starting frequency is 160Hz and the ending frequency is 160-50=110Hz. Furthermore, the first description parameters may be related to each other. For example, the intensity parameter 100 can represent dt*100%*function(F), where dt is the preset vibration displacement, and function(F) represents the function of frequency F, where frequency F can be the starting frequency F ₁ and the ending frequency of the vibration unit F ₂ or average frequency (F ₁ +F ₂ )/2, etc. It can be understood that in exemplary embodiments, the first type of description parameters can characterize the time, frequency and intensity of the vibration unit in any predetermined expression form.

In step 120, a second type of description parameter of the vibration effect may be obtained, which describes changes in one or more parameters in the first type of description parameter. For example, the second type of description parameter may describe changes in one or more of the time parameter T, the frequency parameter F and the intensity parameter I of the vibration effect. Examples of the second type of description parameters may include time-varying parameters (r ₁ , r ₂ ,..., _rt ), frequency-varying parameters (p ₁ , One or more of p ₂ , ..., p _f ) and intensity variation parameters (q ₁ , q ₂ , ..., q _i ). In some embodiments of the present invention, the description parameters of the second type are decorrelated (ie, decorrelated or uncorrelated) with the description parameters of the first type. That is to say, the value of the description parameters of the second type does not depend on any of the above. The value of the first type description parameter, but the second type description parameter may be used in a predetermined manner or rule with the first type description parameter to determine changes in the first type description parameter, which will be described in further detail below. On the other hand, similar to the first type of description parameters discussed above, the second type of description parameters can be related to each other, for example, the intensity change parameter can be used together with the time change parameter and/or the frequency change parameter to determine the intensity of the vibration effect. changes, which will also be described in further detail below.

In some embodiments, the time variation parameters (r ₁ , r ₂ , ..., _rt ) may be used to further refine the duration T of the vibration unit (eg, from T ₁ to T ₂ as shown in FIG. 3 ). Divide it into multiple segments and describe the time length of each segment or the percentage of the entire duration of the vibration unit; or it can be used to extend or shorten the duration T of the vibration unit, such as describing the extended or shortened time length or percentage, etc. It can be understood that when the time variation parameters (r ₁ , r ₂ ,..., r _t ) divide the duration T of the vibration unit into segments, the start and end frequency and start and end intensity of each segment can be determined according to the values shown in Figure 3 Linear changes in frequency and intensity are calculated. Without being limited to the examples described here, the time variation parameters (r ₁ , r ₂ , ..., _rt ) may describe changes in the duration T of the vibration unit in various ways.

In some embodiments, the frequency change parameters (p ₁ , p ₂ , ..., p _f ) may describe the duration of the vibration effect (eg, starting time T ₁ to end time T ₂ ) or may be extended according to the time change parameter or The vibration frequency variation curve of the shortened duration period) or the time segment period (for example, the time segment period determined according to the time change parameter). In some embodiments, the frequency variation parameters (p ₁ , p ₂ , ..., p _f ) may indicate mixing processing of start and end frequencies determined based on the frequency parameters, such as F ₁ and F ₂ , such as the components of frequency F ₁ It decreases linearly, quadratically or exponentially with time, and the component of frequency _F2 increases linearly, quadratically or exponentially with time. Alternatively, the frequency change parameters (p ₁ , p ₂ , ..., p _f ) may indicate frequency conversion processing of the start and end frequencies determined based on the frequency parameters, such as F ₁ and F ₂ , for example, the frequency may be linear, quadratic or from F ₁ changes exponentially to frequency F ₂ . The frequency change parameters (p ₁ , p ₂ , ..., p _f ) can define various frequency change curve forms. For example, a parameter field can indicate the selection of the desired function from several predefined functions representing the curve form. In addition, a The parameter fields or fields may indicate the values of one or more variables for the function. For another example, the frequency change parameters (p ₁ , p ₂ ,..., p _f ) can give the slope of the frequency change curve at multiple sampling points. These sampling points are connected to each other according to the given slope to form a complete frequency change. curve. Without being limited to the examples described here, the frequency variation parameters (p ₁ , p ₂ , ..., p _f ) can describe the vibration unit in various ways Various variation curves of frequency F.

In some embodiments, the intensity change parameters (q ₁ , q ₂ , ..., q _i ) may describe the duration of the vibration effect (eg, starting time T ₁ to end time T ₂ ) or may be extended according to the time change parameter or The vibration intensity change curve during a shortened duration) or a time segment period (for example, a time segment period determined according to a time change parameter). It should be understood that the vibration intensity can be represented by any attribute parameter that can represent the severity of the vibration, such as the driving current or voltage of the vibration motor, displacement, speed, acceleration, etc. In some embodiments, the intensity variation parameters (q ₁ , q ₂ , ..., q _i ) may indicate the starting and ending intensities determined based on the intensity parameters, such as any intensity variation curve between I ₁ and I ₂ , for example, the vibration intensity may Change from intensity I ₁ to I ₂ in the form of a linear, quadratic or exponential change curve. In some exemplary embodiments, one parameter field in the intensity change parameters (q ₁ , q ₂ , ..., q _i ) may indicate selection of a desired function from several predefined functions representing the form of a curve, in addition to one or Multiple parameter fields can indicate the value of one or more variables for the function. In other implementations, the intensity change parameters (q ₁ , q ₂ , ..., q _i ) can give the linearity or curvature of the intensity change curve at multiple sampling points, and these sampling points are according to the given linearity. Or the curvatures are connected to each other to form a complete intensity change curve. Without being limited to the examples described here, the intensity variation parameters (q ₁ , q ₂ , ..., q _i ) may describe various variation curves of the intensity I of the vibration unit in various ways.

Although the operations of obtaining the first type description parameters and the second type description parameters are described above in separate steps 110 and 120, it should be understood that these parameters may also be obtained together in the same step. In addition, the above-mentioned first type description parameters and second type description parameters can be obtained from a pre-stored vibration effect library, or can be provided in real time by a running application, or obtained by processing data provided by an application in real time.

Continuing to refer to FIG. 2 , in step 130 , the duration of the vibration effect and the frequency change and intensity change within the duration are determined based on the first type of description parameters and the second type of description parameters. As mentioned above, the second type of description parameters describes the changes of the first type of description parameters, so the final vibration effect parameters can be determined based on the first type of description parameters and the second type of description parameters and according to the preset mapping relationship. As mentioned above, in the preset mapping relationship, the second type of description parameters can be related to each other. An example of the preset mapping relationship is described below in the form of a function.

As an example, the duration T of the vibration unit can be determined according to Equation 1 below:
T＝functionT[F ₁ ,F ₂ ,functiontp(p ₁ ,p ₂ ,...,p _f ),I ₁ ,I ₂ ,functionti(q ₁ ,q ₂ ,...,q _i ),
T ₁ ,T ₂ ,functiontt(r ₁ ,r ₂ ,...,r _t )] formula (1).

In the above formula 1, the functions functiontp(p ₁ ,p ₂ ,...,p _f ), functionti(q ₁ ,q ₂ ,...,q _i ) and functiontt(r ₁ , r ₂ ,..., r _t ) respectively represents the frequency change parameters (p ₁ , p ₂ ,..., p _f ) and intensity change parameters (q ₁ , q ₂ ,..., q _i ) and the influence of time variation parameters (r ₁ , r ₂ ,..., _rt ) on the duration of the vibration effect. In some embodiments, functiontp(p ₁ ,p ₂ ,...,p _f ) and functionti(q ₁ ,q ₂ ,...,q _i ) may be set to 0 or other flag values to represent time parameters Uncorrelated with frequency changes and intensity changes. In some embodiments, when the time-varying parameters (r ₁ , r ₂ , ..., _rt ) are empty or their values are 0, the function functiontt (r ₁ , r ₂ , ..., _rt ) The value can be 0 or other marker values. Furthermore, the value of functionT can be set to 1 or other marker values, indicating that the time parameters have not changed under the boundary conditions determined by the first type of description parameters. When the time change parameters (r ₁ , r ₂ ,..., r _t ) indicate segmentation or scaling of the time parameters of the vibration effect, the output value of the function functionT can be the changed duration or multiple durations Segmentation. It can be seen from formula (1) that the frequency parameters F ₁ and F ₂ and the intensity parameters I ₁ and I ₂ can also affect the time parameter of the vibration effect.

As an example, the frequency variation curve F of the vibration unit can be determined according to the following formula 2:
F＝functionF[F ₁ ,F ₂ ,functionpp(p ₁ ,p ₂ ,...,p _f ),I ₁ ,I ₂ ,functionpi(q ₁ ,q ₂ ,...,q _i ),
T ₁ ,T ₂ ,functionpt(r ₁ ,r ₂ ,...,r _t )] formula (2).

In the above formula 2, functions functionpp(p ₁ ,p ₂ ,...,p _f ), functionpi(q ₁ ,q ₂ ,...,q _i ) and functionpt(r ₁ ,r ₂ ,... ,r _t ) respectively represent frequency change parameters (p ₁ , p ₂ ,..., p _f ), intensity change parameters (q ₁ , q ₂ ,..., q _i ) and time change parameters (r ₁ , r ₂ ,..., r _t ) on the frequency change curve. It can be seen from Formula 2 that in addition to the frequency parameters F ₁ , F ₂ and frequency change parameters (p ₁ , p ₂ ,..., p _f ), the frequency change curve can also depend on the intensity parameters I ₁ , I ₂ and intensity change parameters (q ₁ , q ₂ ,..., q _i ). In some embodiments, functionpi (q ₁ , q ₂ ,..., q _i ) can be set to 0 or other marker values, indicating that the frequency change curve has nothing to do with the intensity change parameter, and the frequency change curve can also be made to be related to the intensity change parameter. The parameters I ₁ and I ₂ are irrelevant. At this time, formula 2 can be written as the following formula 2':
F＝functionF[F ₁ ,F ₂ ,functionpp(p ₁ ,p ₂ ,...,p _f ),T ₁ ,T ₂ ,functionpt(r ₁ ,r ₂ ,...,r _t )]
Formula (2').

In an example, formula 2' can be predefined as functionF=k*(t/dt)+f1, where t represents the time axis, dt comes from function analysis and represents the time length of one vibration granularity, and k represents the frequency change parameter ( The slope value given by p ₁ , p ₂ ,..., p _f ) can have different slope values k for different time segments. Here, taking the linear change of slope k as an example, the frequency change curve of the vibration effect is defined, but it should be understood that the frequency change curve can also be a nonlinear curve such as a quadratic curve or an exponential curve.

As an example, the intensity variation curve I of the vibration unit can be determined according to the following formula 3:
I＝functionI[F ₁ ,F ₂ ,functionip(p ₁ ,p ₂ ,...,p _f ),I ₁ ,I ₂ ,functionii(q ₁ ,q ₂ ,...,q _i ),T ₁ ,
T ₂ ,functionit(r ₁ ,r ₂ ,...,r _t )] formula (3).

In the above formula 3, functions functionip(p ₁ ,p ₂ ,...,p _f ), functionii(q ₁ ,q ₂ ,...,q _i ) and functionit(r ₁ ,r ₂ ,... ,r _t ) respectively represent frequency change parameters (p ₁ , p ₂ ,..., p _f ), intensity change parameters (q ₁ , q ₂ ,..., q _i ) and time change parameters (r ₁ , r ₂ ,...,r _t ) on the intensity change curve. It can be seen from Formula 3 that in addition to the intensity parameters I ₁ , I ₂ and the intensity change parameters (q ₁ , q ₂ ,..., q _i ), the intensity change curve can also depend on the frequency parameters F ₁ , F ₂ and frequency change parameters (p ₁ , p ₂ ,..., p _f ). In some embodiments, functionip (p ₁ , p ₂ ,..., p _f ) can be set to 0 or other identifiable marker values, indicating that the intensity change curve has nothing to do with the frequency change parameter, and the intensity change can also be made The curve has nothing to do with the frequency parameters F ₁ and F _2. At this time, Formula 3 can be written as the following Formula 3':
I＝functionI[I ₁ ,I ₂ ,functionii(q ₁ ,q ₂ ,...,q _i ),T ₁ ,T ₂ ,functionit(r ₁ ,r ₂ ,...,r _t )]
Formula (3').

In an example, the formula 3' can be predefined as functionI=(1-β)*(I ₁ +(I ₂ -I ₁ )*exp(α*t))+β*((I ₂ -I ₁ ) *t/T _seg +I ₁ ), where t represents the time axis, T _seg represents the duration or time segment length, α represents the curvature, which can be determined by the intensity change parameters (q ₁ , q ₂ ,..., q _i ) is given, and T _seg can have different curvature values in different time periods. By configuring the curvature value α and the calculation method, a concave curve with a logarithmic effect or a convex curve with an exponential effect can be formed. β is a scaling factor that controls the curvature and linearity of the curve, and its value ranges from 0 to 1. When the value of β is smaller, for example, 0, the intensity change curve changes according to the specified curvature; when the value of β is larger, for example, 1, the contribution of the specified curvature to the intensity change curve is zero, and the intensity change curve is linear. Variety. It should be understood that according to the context in this specification, the terms "curve" or "change curve" also cover the situation of partial or overall linear change. Examples of specific functions of intensity profiles are given here, but it is understood that other forms of intensity profiles can also be defined.

As mentioned above, based on the first type description parameters and the second type description parameters and the predefined mapping relationship (such as the example function given above), the duration of the vibration effect and the frequency change and intensity change within the duration can be determined , FIG. 4 shows a schematic diagram of the frequency F and intensity I determined through step 130 as a function of time. In the example in Figure 4, the time parameter T does not change, but the frequency F and intensity I show a nonlinear change curve, which allows a more varied and delicate vibration effect to be defined, and the frequency and frequency between adjacent vibration units are Intensity changes are smoother, thereby improving the user experience.

After determining the duration of the vibration effect as well as the frequency change curve and intensity change curve, In step 140, vibration data representing the vibration effect may be generated based on the determined duration of the vibration effect and the frequency change curve and the intensity change curve. The vibration data generated in step 140 is used to describe a vibration waveform that represents a desired vibration effect, an example of which is shown in FIG. 5 . In step 140, a triplet (dt, f, i )the sequence of. The particle size can be freely chosen depending on the specific embodiment. For example, when the generated vibration data is used for structured driving signal waveform design, the granularity can be an integer multiple of a predefined half vibration cycle, preferably half a vibration cycle, one vibration cycle, or two vibration cycles. , three vibration cycles, etc., of course, it can also be other numbers of vibration cycles, such as a quarter of a vibration cycle, one and a half vibration cycles, etc. In structured driving waveform design, the waveform is composed of artificially divided structural units (for example, half a cycle is a structural unit). Within a structural unit, it has constant frequency and intensity (amplitude), and only the phase changes with time. . For another example, when the generated vibration data is used for unstructured driving signal waveform design, the granularity may be a time interval corresponding to the code rate. The code rate is the number of sampling points that generate the driving signal waveform per unit time. The frequency and intensity will change between each sampling point. Several sampling points together form the driving signal waveform per unit time. As mentioned above, the granularity can be predetermined according to the driving signal waveform design plan, and then based on the preset granularity, within the time dt corresponding to the granularity, the frequency value f that conforms to the frequency change curve and the intensity value that conforms to the intensity change curve can be determined. i. An example of a vibration waveform represented by the resulting sequence of data triples (dt, f, i) is shown in Figure 5.

As mentioned above, vibration data representing the vibration effect is generated. These vibration data can be provided to a drive chip of a vibration motor, for example. The drive chip can generate a drive signal based on the vibration data and drive the vibration motor to vibrate to output a corresponding vibration effect. It can be understood that the vibration data corresponding to multiple vibration units can be spliced with each other, as shown in Figure 5, to provide a complete desired vibration effect. As mentioned above, the vibration data of the present invention can produce richer and more delicate vibration effects, and the frequency and intensity changes between adjacent vibration units are smoother, thereby improving the user experience.

Figure 6 shows a functional block diagram of an apparatus 200 for generating vibration data according to an embodiment of the present invention. The device 200 may be implemented at an electronic device with a vibration function or as a part of such an electronic device, and the device 200 may include a plurality of unit modules for implementing the vibration data generation method described above with reference to FIGS. 2-5 , such a unit Modules may be implemented in various ways, including but not limited to software, hardware, firmware, or any combination thereof.

Referring to Figure 6, the device 200 may include a first obtaining unit 210, a second obtaining unit 220, a determining unit 230 and generation unit 240. The first acquisition unit 210 may be used to acquire the first type of description parameters that define the boundary conditions of the vibration effect. The first type of description parameters include time parameters, frequency parameters and intensity parameters of the vibration effect; the second acquisition unit 220 may be used to Obtain the second type of description parameters of the vibration effect, the second type of description parameters include one or more of time change parameters, frequency change parameters and intensity change parameters; the determination unit 230 may be configured to based on the first type of description The parameters and the second type of description parameters determine the duration of the vibration effect as well as the frequency change and intensity change within the duration; the generating unit 240 may be configured to based on the duration of the vibration effect and within the duration Frequency changes and intensity changes within the device generate vibration data representing the vibration effect.

In some embodiments, the time change parameter describes segmenting, extending or shortening the duration of the vibration effect, and the frequency change parameter describes how the vibration effect is processed during the corresponding duration or time segment. The frequency change curve, the intensity change parameter describes the change curve of the intensity of the vibration effect during the corresponding duration or time segment.

In some embodiments, the frequency change parameter describes mixing or frequency conversion processing of the frequency of the vibration effect, and the intensity change parameter describes the linearity or curvature of the intensity change of the vibration effect.

In some embodiments, the frequency change of the vibration effect within the duration depends on at least one of the intensity parameter and the intensity change parameter in addition to the frequency parameter and the frequency change parameter. , the intensity change of the vibration effect within the duration depends not only on the intensity parameter and the intensity change parameter, but also on at least one of the frequency parameter and the frequency change parameter.

In some embodiments, the generating unit 240 may be configured to generate a sequence of time parameters, frequency parameters and intensity parameters corresponding to each granularity during the duration or time segment of the vibration effect based on the predetermined granularity.

In some embodiments, the predetermined particle size is an integer multiple of half a vibration period.

FIG. 7 shows a structural block diagram of an electronic device 300 for generating vibration data according to an embodiment of the present invention. Examples of electronic devices 300 include, but are not limited to, cell phones, portable media players, personal digital assistants, game controllers, virtual reality (VR) devices, wearable devices, and the like.

Referring to FIG. 7 , electronic device 300 may include one or more processors 310 and one or more memories 320 .

The processor 310 may be a central processing unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 300 to perform desired functions.

Memory 320 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and/or cache memory (cache). The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. Computer program instructions 322 may be stored on the computer-readable storage medium, and the processor 310 may execute the program instructions 322 to implement the vibration data generation method described above with reference to FIGS. 2-5 and/or other desired functions.

Of course, for simplicity, only some of the components in the electronic device 300 related to the above-described method are shown in FIG. 7 , and other components such as buses, input/output interfaces, vibration motors, motor driver chips, etc. are omitted. In addition, the electronic device 300 may also include any other appropriate components depending on the specific application.

In addition to the above-mentioned methods, apparatuses and electronic devices, embodiments of the present application may also be a computer program product, which includes computer program instructions that, when executed by a processor, cause the processor to perform the above-referenced steps with reference to FIG. 2- The vibration data generation method described in 5 and/or other desired functions.

The computer program product can be used to write program codes for performing the operations of the embodiments of the present application in any combination of one or more programming languages, including object-oriented programming languages, such as Java, C++, etc. , also includes conventional procedural programming languages, such as the "C" language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server execute on.

In addition, embodiments of the present application may also be a computer-readable storage medium having computer program instructions stored thereon, which when executed by a processor cause the processor to perform the vibration described above with reference to FIGS. 2-5 Data generation methods and/or other desired functionality.

The computer-readable storage medium may be any combination of one or more readable media. Can The read medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, advantages, effects, etc. mentioned in this application are only examples and not limitations. These advantages, advantages, effects, etc. cannot be considered to be Each embodiment of this application must have. In addition, the specific details disclosed above are only for the purpose of illustration and to facilitate understanding, and are not limiting. The above details do not limit the application to be implemented using the above specific details.

The block diagrams of the devices, devices, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, devices, equipment, and systems may be connected, arranged, and configured in any manner. Words such as "includes," "includes," "having," etc. are open-ended words that mean "including, but not limited to," and may be used interchangeably therewith. As used herein, the words "or" and "and" refer to the words "and/or" and are used interchangeably therewith unless the context clearly dictates otherwise. As used herein, the word "such as" refers to the phrase "such as, but not limited to," and may be used interchangeably therewith.

It should also be pointed out that in the device, equipment and method of the present application, each component or each step can be decomposed and/or recombined. These decompositions and/or recombinations shall be considered equivalent versions of this application.

The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, this application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for the purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the form disclosed herein. Although various example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

A method for generating vibration data, including:

Obtain the first type of description parameters that define the boundary conditions of the vibration effect, the first type of description parameters including the time parameters, frequency parameters and intensity parameters of the vibration effect;

Obtain the second type of description parameters of the vibration effect, the second type of description parameters include time change parameters, and also include one or more of frequency change parameters and intensity change parameters;

Determining a duration of the vibration effect based on the first type of description parameter and the second type of description parameter, and determining one or more of a frequency change and an intensity change within the duration; and

generating vibration data representative of the vibration effect based on the duration of the vibration effect and one or more of frequency changes and intensity changes within the duration,

Wherein, in addition to the frequency parameter and the frequency change parameter, the frequency change of the vibration effect within the duration also depends on at least one of the intensity parameter and the intensity change parameter, and the In addition to the intensity parameter and the intensity change parameter, the intensity change of the vibration effect within the duration also depends on at least one of the frequency parameter and the frequency change parameter.
The method of claim 1, wherein the second type of description parameter is de-correlated with the first type of description parameter.
The method of claim 1, wherein the time variation parameter describes segmenting, extending or shortening the duration of the vibration effect,

The frequency change parameter describes the change curve of the frequency of the vibration effect during the corresponding duration or time segment,

The intensity change parameter describes the change curve of the intensity of the vibration effect during the corresponding duration or time segment.
The method of claim 3, wherein the frequency variation curve and the intensity variation curve each include one of a linear variation curve, a quadratic variation curve, and an exponential variation curve.
The method of claim 3, wherein the frequency change parameter describes mixing or frequency conversion processing of the frequency of the vibration effect,

The intensity change parameter describes the linearity or curvature of the intensity change of the vibration effect.
The method of claim 1, wherein generating vibration data representing the vibration effect includes:

Based on the predetermined granularity, a sequence of time parameters, frequency parameters and intensity parameters corresponding to each granularity is generated during the duration or time segmentation of the vibration effect.
The method of claim 6, wherein when the vibration data is used for structured driving signal waveform design, the predetermined granularity is an integer multiple of half a vibration cycle,

When the vibration data is used for unstructured driving signal waveform design, the predetermined granularity is a time interval corresponding to the code rate.
An apparatus for generating vibration data, comprising:

A first acquisition unit, configured to acquire the first type of description parameters that define the boundary conditions of the vibration effect, where the first type of description parameters include the duration, frequency and intensity of the vibration effect;

A second acquisition unit, configured to acquire a second type of description parameter of the vibration effect, where the second type of description parameter includes a time change parameter, and also includes one or more of a frequency change parameter and an intensity change parameter;

Determining unit, configured to determine the duration of the vibration effect based on the first type of description parameter and the second type of description parameter, and determine one or more of frequency changes and intensity changes within the duration. ;as well as

A generating unit configured to generate vibration data representing the vibration effect based on the duration of the vibration effect and one or more of frequency changes and intensity changes within the duration, wherein the vibration effect In addition to the frequency parameter and the frequency change parameter, the frequency change within the duration also depends on at least one of the intensity parameter and the intensity change parameter, and the vibration effect within the duration In addition to the intensity parameter and the intensity change parameter, the intensity change of also depends on at least one of the frequency parameter and the frequency change parameter.
The apparatus of claim 8, wherein the apparatus further comprises a module for performing the method of any one of claims 2-7.
An electronic device including:

processor; and

A memory storing instructions, wherein when the instructions are executed by the processor, the electronic device executes the method according to any one of claims 1 to 7.
A readable storage medium in which instructions are stored, which when executed by a processor, cause the processor to execute the method described in any one of claims 1 to 7.