Adjustment method and apparatus for driving waveform, device, and readable storage medium

Patent metadata

Field	Value
Publication number	US-12057009-B2
Application number	US-202217796827-A
Country	US
Kind code	B2
Filing date	Jan 21, 2022
Priority date	May 20, 2021
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

Embodiments of this application provide an adjustment method and apparatus for a driving waveform, a device, and a storage medium. In the adjustment method for a driving waveform, a vibration description file is obtained; a waveform type described in the vibration description file is recognized; and a driving waveform of a linear motor is generated according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor in response to recognizing that the waveform type described in the vibration description file is a transient waveform. In this case, it can be seen that the driving waveform of the linear motor is generated according to the vibration parameter described in the vibration description file and the resonant frequency of the linear motor in a case that the waveform type described in the vibration description file is the transient waveform.

First claim

What is claimed is:

1. An adjustment method for a driving waveform, applicable to an electronic device, the electronic device comprising a linear motor, the method comprising:
obtaining a vibration description file;
recognizing a waveform type described in the vibration description file; and
generating a driving waveform of the linear motor according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor in a case that the waveform type described in the vibration description file is a transient waveform.

2. The adjustment method for a driving waveform according to claim 1 , wherein the generating a driving waveform of the linear motor according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor comprises:
generating a plurality of half-cycle waveforms according to a parameter of a waveform array that is adapted to the resonant frequency of the linear motor; and
combining the generated plurality of half-cycle waveforms to obtain the transient waveform described in the vibration description file.

3. The adjustment method for a driving waveform according to claim 1 , wherein the generating a driving waveform of the linear motor according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor comprises:
selecting a driving waveform whose frequency matches the resonant frequency of the linear motor from a plurality of pre-stored driving waveforms, wherein the driving waveform whose frequency matches the resonant frequency of the linear motor meets a vibration parameter requirement of the transient waveform described in the vibration description file.

4. The adjustment method for a driving waveform according to claim 3 , wherein the plurality of pre-stored driving waveforms are stored in groups, and one group of driving waveforms corresponds to one resonant frequency of the linear motor; each group of driving waveforms comprises at least one driving waveform, and each driving waveform is adapted to a frequency requirement of a vibration waveform of the linear motor; and
the selecting a driving waveform whose frequency matches the resonant frequency of the linear motor from a plurality of pre-stored driving waveforms, wherein the driving waveform whose frequency matches the resonant frequency of the linear motor meets a vibration parameter requirement of the transient waveform described in the vibration description file comprises:
selecting a group of driving waveforms whose frequency matches the resonant frequency of the linear motor from a plurality of groups of driving waveforms; and
determining the driving waveform that meets the vibration parameter requirement of the transient waveform described in the vibration description file from the selected group of driving waveforms.

5. The adjustment method for a driving waveform according to claim 1 , wherein the generating a driving waveform of the linear motor according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor comprises:
selecting a vibration waveform that meets a vibration parameter requirement of the transient waveform described in the vibration description file from a plurality of pre-stored vibration waveforms; and
processing the selected vibration waveform to obtain a driving waveform whose frequency matches the resonant frequency of the linear motor.

6. The adjustment method for a driving waveform according to claim 1 , wherein vibration parameters described in the vibration description file comprise intensity, sharpness, the waveform type, a start time, and a stop time.

7. The adjustment method for a driving waveform according to claim 1 , wherein the transient waveform is a vibration waveform that drives the linear motor to experience only a rising phase and not a stable vibration phase or a stop phase.

8. An adjustment apparatus for a driving waveform, comprising:
an obtaining unit, configured to obtain a vibration description file;
a recognition unit, configured to recognize a waveform type described in the vibration description file; and
a generation unit, configured to generate a driving waveform of a linear motor according to a vibration parameter described in the vibration description file and a resonant frequency of the linear motor in a case that the waveform type described in the vibration description file is a transient waveform.

9. The adjustment apparatus for a driving waveform according to claim 8 , wherein when generating the driving waveform of the linear motor according to the vibration parameter described in the vibration description file and the resonant frequency of the linear motor, the generation unit is configured to: generate a plurality of half-cycle waveforms according to a parameter of a waveform array that is adapted to the resonant frequency of the linear motor; and combining the generated plurality of half-cycle waveforms to obtain the transient waveform described in the vibration description file.

10. The adjustment apparatus for a driving waveform according to claim 8 , wherein when generating the driving waveform of the linear motor according to the vibration parameter described in the vibration description file and the resonant frequency of the linear motor, the generation unit is configured to: select a driving waveform whose frequency matches the resonant frequency of the linear motor from a plurality of pre-stored driving waveforms, wherein the driving waveform whose frequency matches the resonant frequency of the linear motor meets a vibration parameter requirement of the transient waveform described in the vibration description file.

11. The adjustment apparatus for a driving waveform according to claim 10 , wherein the plurality of pre-stored driving waveforms are stored in groups, and one group of driving waveforms corresponds to one resonant frequency of the linear motor; each group of driving waveforms comprises at least one driving waveform, and each driving waveform is adapted to a frequency requirement of a vibration waveform of the linear motor;
when selecting the driving waveform whose frequency matches the resonant frequency of the linear motor from the plurality of pre-stored driving waveforms, wherein the driving waveform whose frequency matches the resonant frequency of the linear motor meets the vibration parameter requirement of the transient waveform described in the vibration description file, the generation unit is configured to: select a group of driving waveforms whose frequency matches the resonant frequency of the linear motor from a plurality of groups of driving waveforms; and
determining the driving waveform that meets the vibration parameter requirement of the transient waveform described in the vibration description file from the selected group of driving waveforms.

12. The adjustment apparatus for a driving waveform according to claim 8 , wherein when generating the driving waveform of the linear motor according to the vibration parameter described in the vibration description file and the resonant frequency of the linear motor, the generation unit is configured to:
selecting a vibration waveform that meets a vibration parameter requirement of the transient waveform described in the vibration description file from a plurality of pre-stored vibration waveforms; and
processing the selected vibration waveform to obtain a driving waveform whose frequency matches the resonant frequency of the linear motor.

13. The adjustment apparatus for a driving waveform according to claim 8 , wherei

Assignees

• Honor Device Co Ltd

Inventors

• Zhu Jianwei

Classifications

• H02P25/06

  Linear motors · CPC title

• H02P25/034

  Voice coil motors (voice coil motors driven by DC H02P7/025) · CPC title

• G06F3/016

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G08B6/00 Primary

  Tactile signalling systems, e.g. tactile personal calling systems · CPC title

• H02P25/032 Primary

  Reciprocating, oscillating or vibrating motors · CPC title