Electronic device for forcing liquid out of space in housing to the outside using vibration plate included in speaker and control method thereof

Patent metadata

Field	Value
Publication number	US-11026020-B2
Application number	US-201916520676-A
Country	US
Kind code	B2
Filing date	Jul 24, 2019
Priority date	Jul 30, 2018
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

An electronic device includes a memory, a housing, an acoustic module comprising a coil and an acoustic membrane configured to be movable based on a signal applied to the coil, the acoustic module being disposed in an internal space of the housing, an amplifier, and a processor. The memory may store instructions that when executed by the processor cause the processor to apply a first signal to the coil through the amplifier to move the acoustic membrane in a first direction by a first distance and applying a second signal to the coil through the amplifier to move the acoustic membrane in a second direction different from the first direction and/or to move the acoustic membrane by a second distance different from the first distance after applying the first signal to the coil.

First claim

What is claimed is:

1. An electronic device, comprising:
a memory;
a housing;
an acoustic module comprising a coil and an acoustic membrane configured to be movable based on a signal applied to the coil, the acoustic module disposed in an internal space of the housing;
an amplifier electrically connected with the acoustic module; and
a processor configured to control the acoustic module,
wherein instructions stored in the memory, when executed by the processor, cause the processor to:
apply a first signal to the coil via the amplifier to move the acoustic membrane in a first direction by a first distance; and
apply a second signal to the coil via the amplifier to move the acoustic membrane in a second direction different from the first direction and/or to move the acoustic membrane by a second distance different from the first distance after applying the first signal to the coil, wherein the first signal and the second signal are direct current (DC) voltages having different levels, respectively, and/or the first signal and the second signal are signals have different waveforms, respectively.

2. The electronic device of claim 1 , wherein the instructions, when executed by the processor, cause the processor to determine the first signal and/or the second signal based at least on a profile defining a sequential location of the acoustic membrane over time.

3. The electronic device of claim 1 , wherein each of the first signal and the second signal includes at least one signal, each signal having at least one of a rectangular waveform, a triangular waveform, a sawtooth waveform, or a pulse waveform.

4. The electronic device of claim 1 , further comprising:
at least one sensor configured to obtain data about an environment inside and outside the electronic device,
wherein the instructions, when executed by the processor, cause the processor to:
determine whether there is liquid in the internal space based on data obtained by the at least one sensor; and
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier, based at least on a determination that there is the liquid in the internal space.

5. The electronic device of claim 1 , further comprising:
a user interface configured to receive an input,
wherein the instructions, when executed by the processor, cause the processor to:
receive an input through the user interface associated with performing an operation in which the electronic device forces out liquid; and
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier based on the received user input.

6. The electronic device of claim 1 , wherein the instructions, when executed by the processor, cause the processor to:
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier, before outputting audio via the acoustic module and/or after executing a waterproof mode.

7. The electronic device of claim 1 , wherein the housing defines an external shape and an internal structure of the electronic device and/or a housing defining an internal structure of the acoustic module.

8. An electronic device, comprising:
a memory;
a housing;
an acoustic module comprising a coil and an acoustic membrane configured to be movable based on a signal applied to the coil, the acoustic module disposed in an internal space of the housing;
an amplifier electrically connected with the acoustic module; and
a processor configured to control the acoustic module,
wherein instructions stored in the memory are configured to, when executed by the processor, cause the processor to:
apply a first signal to the coil via the amplifier to move the acoustic membrane in a first direction by a first distance;
apply a second signal to the coil via the amplifier to move the acoustic membrane in a second direction different from the first direction and/or to move the acoustic membrane by a second distance different from the first distance after applying the first signal to the coil;
apply the first signal having a first frequency to the coil; and
apply the second signal having the first frequency together with the first signal to the coil after a specified time, the second signal being different in phase from the first signal.

9. The electronic device of claim 8 , wherein the first signal and the second signal are signals having different waveforms, respectively.

10. The electronic device of claim 8 , further comprising:
at least one sensor configured to obtain data about an environment inside and outside the electronic device,
wherein the instructions, when executed by the processor, cause the processor to:
determine whether there is liquid in the internal space based on data obtained by the at least one sensor; and
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier, based at least on a determination that there is the liquid in the internal space.

11. The electronic device of claim 8 , further comprising:
a user interface configured to receive an input,
wherein the instructions, when executed by the processor, cause the processor to:
receive an input through the user interface associated with performing an operation in which the electronic device forces out liquid; and
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier based on the received user input.

12. The electronic device of claim 8 , wherein the instructions, when executed by the processor, cause the processor to:
apply the first signal to the coil via the amplifier and/or apply the second signal to the coil via the amplifier, before outputting audio via the acoustic module and/or after executing a waterproof mode.

13. The electronic device of claim 8 , wherein the housing defines an external shape and an internal structure of the electronic device and/or a housing defining an internal structure of the acoustic module.

14. An electronic device, comprising:
a memory;
a housing;
an acoustic module comprising a coil and an acoustic membrane configured to be movable based on a signal applied to the coil, the acoustic module disposed in an internal space of the housing;
an amplifier electrically connected with the acoustic module; and
a processor configured to control the acoustic module,
wherein instructions stored in the memory are configured to, when executed by the processor, cause the processor to:
apply a first signal to the coil via the amplifier to move the acoustic membrane in a first direction by a first distance; and
apply a second signal to the coil via the amplifier to move the acoustic membrane in a second direction different from the first direction and/or to move the acoustic membrane by a second distance different from the first distance after applying the first signal to the coil, wherein the first signal and the second signal are signals having different frequencies, respectively, and
wherein the instructions, when executed by the processor, cause the processor to:
apply the first signal and the second signal together to the coil; and
change amplitude of the second signal after a specified time.

15. The electronic device of claim 14 , wherein the different frequencies are determined by dividing a frequency of one octave range by a specified interval.

16. The electronic device of claim 15 , wherein the specified interval is ⅓ or ½ of the frequency of the one octave range.

17. The electronic device

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Youngbae
• Yoon Changshik
• Kim Hongki
• Lee Junhui
• Jang Dongheon
• KIM Sohae
• Roh Hyunjong
• Lim Limsam
• Hwang Hochul

Classifications

• H04R9/04

  Construction, mounting, or centering of coil · CPC title

• H04R7/02

  characterised by the construction · CPC title

• H04R3/08 Primary

  of electromagnetic transducers · CPC title

• H04R3/00 Primary

  Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) · CPC title

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title