A tactile vibration control system and method for an intelligent terminal

A vibration control and smart terminal technology, applied in the field of haptic feedback, can solve the problems of vibration influence and inability to realize vibration effect, and achieve the effect of real-time adjustment of vibration state, quick start and quick braking, and improved discrimination.

Active Publication Date: 2018-07-31
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A linear resonant actuator is an electromagnetic system with a mass loaded on a spring, which has an inherent or natural resonant frequency, and is usually a high-quality factor system, so when the input drive electrical signal stops, the system's oscillatory response does not immediately It disappears but gradually weakens. This residual vibration will last for a period of time, and even affect the next vibration, and the desired vibration effect cannot be achieved.

Method used

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  • A tactile vibration control system and method for an intelligent terminal
  • A tactile vibration control system and method for an intelligent terminal
  • A tactile vibration control system and method for an intelligent terminal

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Experimental program
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Embodiment 1

[0038] figure 1 The block diagram of the tactile vibration control system of the smart terminal provided in this embodiment, the smart terminal of the present invention can be a handheld device, a wearable device (such as a smart watch, a smart bracelet), or an industrial control device.

[0039] like figure 1 as shown, figure 1 The tactile vibration control system in is an open-loop control system, including: a command generator 11 , a filter 12 , a tactile driver 13 and a linear resonant actuator 14 .

[0040] like figure 1 As shown, the output of command generator 11 is connected to the input of filter 12, the output of filter 12 is connected to the input of haptic driver 13, and the output of haptic driver 13 is connected to the input of linear resonant actuator 14 end.

[0041] The command generator 11 generates an original command signal according to the input signal, and sends the original command signal to the filter 12 . The input signal in this embodiment may be...

Embodiment 2

[0059] In order to further solve the residual phenomenon of tailing of the linear resonant actuator when the driving signal stops driving, this embodiment sets up a plurality of sensors that can monitor or sense the vibration state of the linear resonant actuator, and the characterization of the sensor output The sensing signal of the physical quantity related to the vibration mode is used as the feedback signal to control the physical quantity of the vibration of the linear resonant actuator in real time, and the state of the actuator is more robustly estimated and controlled by an effective integration method to further solve the problem of linear resonant actuation. The residual phenomenon of tailing occurs when the instrument vibrates.

[0060] Figure 5 The block diagram of the tactile vibration control system of the intelligent terminal provided for this embodiment, such as Figure 5 As shown, by setting the sensing module 55, the feedback unit 56 and the comparator 57 ...

Embodiment 3

[0092] Based on the same technical concept as that of Embodiment 1, this embodiment provides a method for controlling tactile vibration of a smart terminal.

[0093] like Figure 8 as shown, Figure 8 For the tactile vibration control method of the smart terminal provided in this embodiment, the control method includes:

[0094] S810. Generate an original command signal according to the input signal.

[0095] In this step, the original command signal is generated according to the input signal as follows:

[0096] Reading the vibration pattern list of the vibration effect library, and selecting a physical quantity sequence representing the vibration effect corresponding to the desired vibration pattern from the vibration pattern list according to the selection instruction in the input signal, and using the physical quantity sequence as the original command signal;

[0097] Alternatively, a physical signal representing a vibration effect derived from the media stream data is ...

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Abstract

The invention discloses a tactile vibration control system and method for an intelligent terminal. The system includes a command generator, a filter, a tactile driver and a linear resonant actuator. The command generator generates an original command signal according to an input signal; The original command signal is filtered, so that the amplitude of the first predetermined number of pulses of the filtered command signal is greater than the set threshold, and the phase of the last predetermined number of pulses is reversed; the haptic driver generates a drive actuation according to the filtered command signal The driving signal of the vibration of the device. The invention uses a filter to filter the original command signal generated by the command generator, so that when the subsequent generated drive signal is used to drive the actuator to vibrate, the actuator can quickly respond to dynamic and braking, and weaken the interval in the time dimension The shorter overlapping degree of the front and rear vibration events improves the discrimination in the time dimension of the front and rear vibration events and ensures the desired vibration effect.

Description

technical field [0001] The present invention relates to the technical field of tactile feedback, in particular to a tactile vibration control system and method for an intelligent terminal. Background technique [0002] For many years, the communication and media technology fields have fully explored and utilized the receiving channels of visual and auditory information, although the tactile sense has applications in fields such as virtual reality and game special effects, such as remote or indirect control, using gamepads, etc. The vibration simulates shooting, explosion and other scenes, but it is not until recent years that the tactile information channel has been further explored. [0003] A linear resonant actuator is an electromagnetic system with a mass loaded on a spring, which has an inherent or natural resonant frequency, and is usually a high-quality factor system, so when the input drive electrical signal stops, the system's oscillatory response does not immediate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D19/02
CPCG05D19/02G06F3/016G08B6/00G06F3/01
Inventor 李波冯勇强楼厦厦
Owner GOERTEK INC
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