CN117857966A - True wireless device and dual-mode true wireless device - Google Patents
True wireless device and dual-mode true wireless device Download PDFInfo
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- CN117857966A CN117857966A CN202310524646.9A CN202310524646A CN117857966A CN 117857966 A CN117857966 A CN 117857966A CN 202310524646 A CN202310524646 A CN 202310524646A CN 117857966 A CN117857966 A CN 117857966A
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- 230000009977 dual effect Effects 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 230000005520 electrodynamics Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 210000005069 ears Anatomy 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Abstract
The invention discloses a true wireless device and a dual-mode true wireless device. The modulator is used for generating ultrasonic waves. Mems speakers provide a larger bandwidth than existing speakers, such as electrodynamic speakers or piezoelectric film speakers. In particular, mems speakers have an audio bandwidth and a supersonic bandwidth.
Description
Technical Field
The present invention relates to a true wireless (true wireless) device.
Background
With the development of technology, true wireless devices have been widely used, for example, for listening to music or other sounds, making and receiving calls, etc. Typically, a true wireless device includes a pair of headphones. If the user wants to perform the above-described actions using an existing true wireless device, the user needs to insert the headset into the ear because the sound wave (audible sound waves) of the audio (or "sound wave") can only travel a short distance. However, some users may want to still be able to use their true wireless device when the headset is not in the ear. The present invention thus provides a true wireless device that can still be used when the headset is not in the ear.
Disclosure of Invention
Some embodiments of the invention provide a true wireless device. The true wireless device includes a modulator and a mems speaker. The modulator is used for generating ultrasonic waves. The mems speaker is coupled to the modulator. Mems speakers have an audio bandwidth and a supersonic bandwidth.
In some embodiments, the true wireless device further comprises a headset and/or a headset case. In some embodiments, the modulator and the mems speaker are disposed on the headset. In some embodiments, the modulator and the mems speaker are disposed in an earphone box. In some embodiments, the modulator is disposed on the headset and the mems speaker is disposed on the headset case. In some embodiments, the mems speaker is disposed on the earphone and the modulator is disposed on the earphone case.
In some embodiments, the real wireless device further comprises a controller configured to control whether the modulator generates ultrasound waves. In some embodiments, the real wireless device further comprises a sensing element for sensing whether the earphone is in an ear, wherein the modulator generates ultrasonic waves according to a signal generated by the controller when the earphone is not plugged into the ear. In some embodiments, the real wireless device further comprises a sensing element for sensing a distance between the earphone and the earphone box, wherein the modulator generates the ultrasonic wave according to a signal generated by the controller when the distance is smaller than a predetermined value. In some embodiments, the predetermined value is 50 centimeters. In some embodiments, the predetermined value is 30 centimeters.
Some embodiments of the present invention provide a dual mode true wireless device. The dual-mode true wireless device has a standard mode and a directional speaker mode. The dual mode true wireless device includes a modulator and a mems speaker. The mems speaker is coupled to the modulator, wherein the mems speaker has an audio bandwidth and a supersonic bandwidth. The modulator does not generate ultrasonic waves when the dual-mode true wireless device is in the standard mode, and generates ultrasonic waves when the dual-mode true wireless device is in the directional speaker mode.
In some embodiments, the dual-mode true wireless device further comprises a first earpiece and a second earpiece, wherein the dual-mode true wireless device is in the standard mode when at least one of the first earpiece and the second earpiece is plugged into an ear. In some embodiments, the dual-mode true wireless device further comprises a first earpiece and a second earpiece, wherein the dual-mode true wireless device is in the directional speaker mode when neither the first earpiece nor the second earpiece is plugged into an ear.
In some embodiments, the dual-mode true wireless device further comprises a headset case, wherein the dual-mode true wireless device is in the standard mode when a distance between the first headset and the headset case or a distance between the second headset and the headset case is greater than a predetermined value. In some embodiments, the dual mode true wireless device is in the directional speaker mode when a distance between the first earpiece and the earpiece box and a distance between the second earpiece and the earpiece box are both less than a predetermined value. In some embodiments, the predetermined value is 50 centimeters. In some embodiments, the predetermined value is 30 centimeters.
Drawings
In order to make the features and advantages of the present invention more comprehensible, several embodiments accompanied with figures are described in detail below. It should be noted that the various features are not necessarily drawn to scale. In fact, the dimensions of the various features may be arbitrarily expanded or reduced and may be drawn schematically.
FIG. 1 is a schematic diagram of a true wireless device according to some embodiments of the present invention;
FIG. 2 is a schematic diagram of how sound waves enter a user's ear through a real wireless device according to some embodiments of the present invention;
FIGS. 3-6 are schematic diagrams of modulators and MEMS speakers in different configurations according to some embodiments of the invention;
FIG. 7 is a schematic diagram of how sound waves enter a user's ear through a dual-mode true wireless device according to some embodiments of the present invention;
fig. 8A and 8B are schematic diagrams illustrating the switching of the standard mode and the directional speaker mode of the dual-mode real wireless device according to some embodiments of the present invention;
fig. 9A and 9B are schematic diagrams illustrating switching between a normal mode and a directional speaker mode of a dual-mode real wireless device according to some embodiments of the invention.
Symbol description
100 true wireless device
110 first earphone
120 second earphone
130 earphone box
131 a first accommodation space
132 a second accommodation space
200 modulator
300 mems speaker
500 Dual mode true wireless device
510 first earphone
520 second earphone
530 earphone box
600 modulator
700 micro-electromechanical system loudspeaker
800 controller
900 sensing element
D1 distance
D2 distance
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. Ordinal numbers such as "first," "second," and the like in the description and in the claims are used for distinguishing between two different elements having the same name and not necessarily for describing a sequential or chronological order. Thus, a first element referred to in the specification may be referred to as a second element in the claims. Furthermore, similar and/or corresponding symbols or letters may be used in various examples of the invention. The use of such similar and/or corresponding symbols or letters is merely for simplicity and clarity in describing some embodiments of the invention, and does not represent any association between the different embodiments and/or structures discussed.
In this specification, spatially relative terms, such as "above" and the like, may be used to describe a positional relationship of one element relative to another element of the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation. The device may be turned to a different orientation (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly. If the device of the drawings is turned upside down, elements "above" would then be elements "below.
In this specification, the terms "comprising" and/or "having" are open-ended terms such that they should be interpreted to mean "including, but not limited to …". Thus, when the terms "comprises" and/or "comprising" are used in the description of the present invention, they specify the presence of the corresponding features, regions, steps, operations, and/or components, but do not exclude the presence of one or more corresponding features, regions, steps, operations, and/or components. In addition, any two values or directions used for comparison may have some error.
Fig. 1 illustrates a true wireless device 100 according to some embodiments of the invention. In the present embodiment, the real wireless device 100 includes a first earphone 110, a second earphone 120, and an earphone box 130. The earphone case 130 may include a first accommodating space 131 and a second accommodating space 132, and the first accommodating space 131 and the second accommodating space 132 may be used for accommodating the first earphone 110 and the second earphone 120, respectively. In some embodiments, the real wireless device 100 may be connected to an electronic device (not shown), such as a smart phone, through a wireless connection (e.g., a bluetooth connection). Accordingly, sound waves from the electronic device may be transferred to the first earphone 110 and the second earphone 120.
In the present invention, the true wireless device 100 can be used even if the first earpiece 110 and the second earpiece 120 are not in the ears. Please refer to fig. 2. Fig. 2 illustrates how sound waves enter a user's ear through the true wireless device 100, according to some embodiments of the present invention. For ease of illustration, the true wireless device 100 is shown in a somewhat schematic manner. The real wireless device 100 includes a modulator 200 and a mems speaker 300. The modulator 200 is capable of generating ultrasonic waves (ultrasonic waves). Mems speaker 300 is coupled to modulator 200. The mems speaker 300 has a faster response time (response time) and better total harmonic distortion (total harmonic distortion, THD), is lighter and thinner, and provides a larger bandwidth than existing speakers such as electrodynamic speakers (electrodynamic speakers) or piezoelectric film speakers (piezoelectric thin-film speakers). Specifically, the mems speaker 300 has an audio bandwidth and a supersonic bandwidth. Thus, there is no need to provide two speakers having different bandwidths in the real wireless device 100.
Ultrasonic waves have a higher frequency (i.e., greater than 20 kHz) and thus can travel a greater distance and have less diffraction and less energy loss. The ultrasonic waves generated by the modulator 200 are used to reproduce the sound waves entering the real wireless device 100. In detail, after the sound wave enters the real wireless device 100, the ultrasonic wave generated by the modulator 100 may be used as a carrier wave (carrier wave) for modulating and transmitting the sound wave entering the real wireless device 100. After the modulated sound wave exits the real wireless device 100 and encounters an object (e.g., a user's ear), the modulated sound wave may be demodulated so that the original sound wave may be heard. In addition, during the transmission of the modulated sound wave, the modulated sound wave is confined in a beam (beam) due to the characteristics of the ultrasonic wave, so that the real wireless device 100 can function as a directional speaker (directional speaker) to allow for comfort and privacy of the user. Thus, the user can listen to music, listen to other sounds, make a call, or perform similar functions without the headset in the ear. In some embodiments, the distance between the real wireless device 100 and the user may be greater than 0.5 meters. In some embodiments, the distance between the real wireless device 100 and the user may be greater than 1.0 meter. In some embodiments, the distance between the real wireless device 100 and the user may be greater than 2.0 meters.
Next, please refer to fig. 3 to 6. Fig. 3-6 illustrate different configurations of modulators 200 and mems speakers 300 according to some embodiments of the invention. As shown in fig. 3, in some embodiments, the modulator 200 and the mems speaker 300 are disposed on the first earphone 110 and the second earphone 120. As shown in fig. 4, in some embodiments, the modulator 200 and the mems speaker 300 are disposed on the earphone box 130. As shown in fig. 5, in some embodiments, the modulator 200 is disposed on the first earphone 110 and the second earphone 120, and the mems speaker 300 is disposed on the earphone box 130. As shown in fig. 6, in some embodiments, the modulator 200 is disposed on the earphone box 130, and the mems speaker 300 is disposed on the first earphone 110 and the second earphone 120.
The configuration of the modulator 200 and the mems speaker 300 may be determined based on actual requirements. For example, in the embodiment where the modulator 200 and the mems speaker 300 are both disposed on the earphone box 130, when the real wireless device 100 is damaged or modified, the user can purchase a new earphone box 130 without purchasing the first earphone 110 and the second earphone 120 again, thereby saving expenses.
Next, please refer to fig. 7, which illustrates how sound waves enter the user's ear through a dual-mode real wireless device 500 according to some embodiments of the present invention. The dual-mode true wireless device 500 includes a modulator 600 and a mems speaker 700. The modulator 600 may be substantially identical to the modulator 200 and the mems speaker 700 may be substantially identical to the mems speaker 300. The dual-mode true wireless device 500 has a standard mode and a directional speaker mode. In the standard mode, the modulator 600 is in an off state (off), so the modulator 600 does not generate ultrasonic waves, so that the dual-mode real wireless device 500 is an existing real wireless device. In the directional speaker mode, the modulator 600 is in an on state (on), so the modulator 600 can generate ultrasonic waves so that the dual-mode true wireless device 500 functions as a directional speaker. In some embodiments, the switching of the standard mode and the directional speaker mode of the dual-mode real wireless device 500 may be determined by a controller 800. That is, the controller 800 may be configured to control whether the modulator 600 generates ultrasonic waves.
Next, please refer to fig. 8A and 8B, which illustrate the switching between the standard mode and the directional speaker mode of the dual-mode real wireless device 500 according to some embodiments of the present invention. The dual-mode true wireless device 500 includes a first earpiece 510 and a second earpiece 520. In the present embodiment, the modulator 600 and the mems speaker 700 are disposed on the first earphone 510 and the second earphone 520, however, the configuration of the modulator 600 and the mems speaker 700 is not limited thereto. As shown in fig. 8A, the dual-mode true wireless device 500 is in a standard mode when a user inserts at least one of the headphones (i.e., the first headphone 510 and the second headphone 520) into the user's ear. As shown in fig. 8B, the dual-mode true wireless device 500 is in the directional speaker mode when the user is not tucking either of the first earpiece 510 and the second earpiece 520 into the ear. In summary, in the embodiment shown in fig. 8A and 8B, the switching between the standard mode and the directional speaker mode of the dual-mode real wireless device 500 is determined by whether the first earphone 510 and the second earphone 520 are in the ears of the user.
In some embodiments, the dual-mode true wireless device 500 may include a sensing element 900, the sensing element 900 being configured to sense whether headphones (i.e., the first headphone 510 and the second headphone 520) are plugged into the user's ears. In some embodiments, the sensing element 900 is electrically coupled to the controller 800 to transmit information about whether the first earphone 510 and the second earphone 520 are in the ears of the user to the controller 800. For example, when the sensing element 900 senses that neither the first earphone 510 nor the second earphone 520 is plugged into the ear of the user, the sensing element 900 transmits the information to the controller 800, and the modulator 600 is turned on according to the signal generated by the controller 800 to generate the ultrasonic wave.
Next, please refer to fig. 9A and 9B, which illustrate the switching of the standard mode and the directional speaker mode of the dual-mode real wireless device 500 according to some embodiments of the present invention. The dual-mode true wireless device 500 includes a headset box 530. In the present embodiment, the modulator 600 is disposed on the first earphone 510 and the second earphone 520, and the mems speaker 700 is disposed on the earphone box 530, however, the configuration of the modulator 600 and the mems speaker 700 is not limited thereto. As shown in fig. 9A, the dual-mode true wireless device 500 is in the standard mode when the first earpiece 510 and the second earpiece 520 are relatively far from the earpiece box 530. As shown in fig. 9B, the dual-mode true wireless device 500 is in a directional speaker mode when the first earpiece 510 and the second earpiece 520 are relatively close to the earpiece box 530. In summary, in the embodiment shown in fig. 9A and 9B, the switching between the standard mode and the directional speaker mode of the dual-mode real wireless device 500 is determined by the distances between the first earphone 510 and the second earphone 520 and the earphone box 530.
In some embodiments, the dual-mode true wireless device 500 may include a sensing element 900, the sensing element 900 being configured to sense a distance between the first earpiece 510 and the earpiece box 530 and a distance between the second earpiece 520 and the earpiece box 530. In some embodiments, the dual-mode true wireless device 500 is in the standard mode when the distance is greater than a predetermined value, and the dual-mode true wireless device 500 is in the directional speaker mode when the distance is less than the predetermined value. In some embodiments, the predetermined value is 50 centimeters. In some embodiments, the predetermined value is 30 centimeters. In some embodiments, the sensing element 900 is electrically coupled to the controller 800 to transmit information about a distance D1 between the first earphone 510 and the earphone box 530 and a distance D2 between the second earphone 520 and the earphone box 530 to the controller 800. For example, when the sensing element 900 senses that the distance D1 and the distance D2 are smaller than the predetermined value, the sensing element 900 transmits the information to the controller 800, and the modulator 600 is turned on according to the signal generated by the controller 800 to generate the ultrasonic wave. It should be noted that the user may adjust the predetermined value according to the preference.
In some embodiments, the sensing element 900 may be omitted and a key may be provided on the dual-mode true wireless device 500. The user can change the mode of the dual-mode real wireless device 500 by pressing a key to meet the requirement.
In summary, some embodiments of the present invention provide a true wireless device having a modulator and a mems speaker. The true wireless device may include a headset and a headset case. Because of the modulator and the mems speaker, the true wireless device can still be used when the headset is not in the ear. In addition, the true wireless device can be used as a directional loudspeaker so as to consider the comfort and privacy of a user. Furthermore, some embodiments of the present invention also provide a dual mode true wireless device. The dual mode true wireless device includes a standard mode and a directional speaker mode. There may be different reasons for switching between the two modes, e.g. whether the headset is in the user's ear or the distance between the headset and the headset box.
The foregoing outlines features of several embodiments so that those skilled in the art may better understand the aspects of the present invention. It will be appreciated by those skilled in the art that the present invention can be readily utilized as a basis for designing or modifying other processes and structures for carrying out the same purposes or with similar effects of the embodiments described herein. It will be understood by those skilled in the art that such equivalent arrangements do not depart from the spirit and scope of the invention, and that various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention. In addition, the features of the embodiments can be mixed and matched at will without departing from the spirit of the invention or conflicting with the spirit of the invention.
Claims (10)
1. A true wireless device, comprising:
a modulator for generating ultrasonic waves; and
and a MEMS speaker coupled to the modulator, wherein the MEMS speaker has an audio frequency bandwidth and a ultrasound frequency bandwidth.
2. The true wireless device of claim 1 further comprising an earpiece, wherein the modulator and the mems speaker are disposed on the earpiece.
3. The true wireless device of claim 1 further comprising an earphone box, wherein the modulator and the mems speaker are disposed in the earphone box.
4. The true wireless device of claim 1 further comprising a controller, wherein the controller is configured to control whether the modulator generates ultrasound.
5. The true wireless device of claim 4 further comprising a headset and a sensing element that senses whether the headset is in an ear, wherein the modulator generates ultrasound based on a signal generated by the controller when the headset is not plugged into the ear.
6. The true wireless device of claim 4 further comprising headphones, a headphone case, a sensing element that senses a distance between the headphones and the headphone case, wherein the modulator generates ultrasonic waves according to a signal generated by the controller when the distance is less than a predetermined value.
7. The true wireless device of claim 6 wherein the predetermined value is 50 centimeters.
8. A dual mode true wireless device having a standard mode and a directional speaker mode, comprising:
a modulator; and
a mems speaker coupled to the modulator, wherein the mems speaker has an audio frequency bandwidth and a supersonic frequency bandwidth;
wherein the modulator does not generate ultrasonic waves when the dual-mode true wireless device is in the standard mode, and wherein the modulator generates ultrasonic waves when the dual-mode true wireless device is in the directional speaker mode.
9. The dual-mode true wireless device of claim 8 further comprising a first earpiece and a second earpiece, wherein the dual-mode true wireless device is in the standard mode when at least one of the first earpiece and the second earpiece is plugged into an ear, and the dual-mode true wireless device is in the directional speaker mode when neither the first earpiece nor the second earpiece is plugged into an ear.
10. The dual-mode true wireless device of claim 8 further comprising a first earpiece, a second earpiece, and an earpiece box, wherein the dual-mode true wireless device is in the standard mode when a distance between the first earpiece and the earpiece box or a distance between the second earpiece and the earpiece box is greater than a predetermined value, and the dual-mode true wireless device is in the directional speaker mode when both the distance between the first earpiece and the earpiece box and the distance between the second earpiece and the earpiece box are less than a predetermined value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63/378,699 | 2022-10-07 | ||
| US18/063,738 US20240121545A1 (en) | 2022-10-07 | 2022-12-09 | True wireless device and dual-mode true wireless device |
| US18/063,738 | 2022-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117857966A true CN117857966A (en) | 2024-04-09 |
Family
ID=90540613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310524646.9A Pending CN117857966A (en) | 2022-10-07 | 2023-05-10 | True wireless device and dual-mode true wireless device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117857966A (en) |
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2023
- 2023-05-10 CN CN202310524646.9A patent/CN117857966A/en active Pending
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