Headphone control method and headphone

Abstract

This paper discloses a headphone control method and a headphone. The headphone control method includes: detecting whether the headphone's in-ear portion is close to a human body by using the capacitive effect of a piezoelectric sensor installed inside the headphone shell in the in-ear portion; and / or detecting whether the headphone's in-ear portion is subjected to pressure from the auricle by an elastic wave sensor installed inside the headphone shell in the in-ear portion; when the in-ear portion of the headphone is detected to be close to a human body and / or when the in-ear portion of the headphone is subjected to pressure from the auricle, determining that the headphone meets the in-ear condition. The technical solution of this paper improves the headphone control method, reduces the probability of false triggering of control commands, can easily realize headphone in-ear detection, improves the reliability of headphone control, and improves the user's operating experience.

Description

[0001] This case is a divisional application of patent application 201911056410.7. The application date of the original application is October 31, 2019, the application number is 201911056410.7, and the name of the invention is a headphone control method, a handle module and a headphone. Technical Field

[0002] The present invention relates to the technical field of earphones, and in particular to an earphone control method and an earphone. Background Art

[0003] Wireless headphones can control the playback of the device through the control handle, for example, controlling the playback or stop of music, adjusting the volume, etc.

[0004] Physical buttons are generally provided on the control handle for control, however, the physical buttons can be easily accidentally triggered by being touched by other objects, thus affecting the user's use of the headset. Summary of the invention

[0005] This article provides an earphone control method and earphones, which can improve the flexibility of the earphone control method and reduce the probability of false triggering of control instructions by improving the earphone control method.

[0006] According to a first aspect of the present application, an embodiment of the present invention provides an earphone control method, including:

[0007] Detecting whether the ear-entry portion of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the ear-entry portion; and / or detecting whether the ear-entry portion of the earphone is subjected to pressure from the auricle through an elastic wave sensor installed in the earphone shell at the ear-entry portion;

[0008] When it is detected that the earphone's in-ear portion is close to the human body and / or the earphone's in-ear portion is subjected to pressure from the auricle, it is determined that the earphone meets the in-ear condition.

[0009] According to a second aspect of the present application, an embodiment of the present invention provides a headset, including: an in-ear detection module and a main control module;

[0010] An in-ear detection module is used to detect whether the in-ear portion of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the in-ear portion; and / or to detect whether the in-ear portion of the earphone is subjected to pressure from the auricle through an elastic wave sensor installed in the earphone shell at the in-ear portion;

[0011] The main control module is used to determine that the earphone meets the ear insertion condition when it is detected that the ear insertion part of the earphone is close to the human body and / or the ear insertion part of the earphone is subjected to pressure from the auricle.

[0012] Compared with the related art, the embodiment of the present invention provides an earphone control method and earphone. The earphone in-ear detection is achieved by installing a sensor in the earphone housing at the in-ear position. The technical solution of the embodiment of the present invention improves the control method of the earphone, reduces the probability of false triggering of the control command, and improves the user's control experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a flow chart of an earphone control method according to Embodiment 1 of the present invention;

[0014] Figure 2 This is a schematic diagram of a touch area of ​​an earphone housing according to Embodiment 1 of the present invention;

[0015] Figure 3 This is a flow chart of an earphone control method according to Embodiment 2 of the present invention;

[0016] Figure 4-a This is a schematic diagram of performing in-ear detection using an elastic wave sensor according to Embodiment 2 of the present invention;

[0017] Figure 4-b This is a schematic diagram of performing in-ear detection using a piezoelectric sensor according to Embodiment 2 of the present invention;

[0018] Figure 4-c This is a schematic diagram of performing ear detection using an elastic wave sensor and an infrared sensor according to Embodiment 2 of the present invention;

[0019] Figure 4-d This is a schematic diagram of performing in-ear detection using an elastic wave sensor and a capacitive sensor according to Embodiment 2 of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of a handle module according to Embodiment 3 of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of an earphone according to Embodiment 4 of the present invention (including a handle module);

[0022] Figure 7 This is a schematic diagram of the structure of an earphone according to Embodiment 4 of the present invention (including a handle module and an in-ear detection module);

[0023] Figure 8 A schematic diagram of an earphone (including an elastic wave sensor (for in-ear detection and gesture control) and a handle touch area) according to Embodiment 4 of the present invention;

[0024] Fig. 9 This is a schematic diagram of the structure of an earphone according to Embodiment 5 of the present invention;

[0025] Description of Reference Numerals

[0026] 1. Housing of the touch area; 2. Elastic wave sensor;

[0027] 101 touch area outer wall of the housing;

[0028] 102: an inner wall of the housing of the touch area;

[0029] 3. an earphone housing at the in-ear position; 302. an inner wall of the earphone housing at the in-ear position;

[0030] 4 piezoelectric sensor; 5 infrared sensor; 6 light hole; 7 capacitive sensor;

[0031] 10 handle modules; 20 main control modules; 30 in-ear detection modules. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0033] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0034] Example 1

[0035] like Figure 1 As shown, an embodiment of the present invention provides a headset control method, the method comprising:

[0036] Step S110, identifying a touch operation on the housing through an electrical signal detected by an elastic wave sensor installed in the housing of the earphone;

[0037] Step S120: executing a control instruction corresponding to the touch gesture when the touch operation is recognized as a preset touch gesture.

[0038] In the above embodiment, an elastic wave sensor is arranged in the earphone shell, and the touch operation on the shell is identified according to the electrical signal detected by the elastic wave sensor, and the control instruction corresponding to the touch gesture is executed when the touch operation is identified as a preset touch gesture. Compared with the traditional button touch control, the above earphone control method has a flexible control mode and reduces the probability of false triggering of the control instruction, thereby improving the user's control experience.

[0039] Elastic wave sensors are used to collect elastic wave signals. Elastic waves are waves that propagate in hard objects. Compared with other sensors, elastic wave sensors have many unique advantages, such as: they are not affected by the conductivity of the material, and can support both non-conductive materials (such as glass, plastic, wood, etc.) and conductive materials (such as iron plates, steel plates, etc.). Elastic wave sensors have low power consumption, no radiation, and strong anti-interference ability. Elastic wave sensors include but are not limited to piezoelectric sensors, strain sensors, etc.

[0040] The earphone shell is hard, and the touch operation will cause the earphone shell to be subjected to force and produce tiny fluctuations. The fluctuations propagate in the earphone shell in the form of elastic waves. When the elastic wave sensor is in close contact with the inner wall of the earphone shell in the touch area, the elastic wave signal generated by the touch operation can be detected.

[0041] In one embodiment, the elastic wave sensor disposed inside the earphone housing is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0042] The sensitive element of the piezoelectric sensor is made of piezoelectric material. When the piezoelectric material is subjected to force, a charge is generated on the surface. After the charge is amplified and the impedance is transformed by the charge amplifier and the measurement circuit, it becomes an electrical output proportional to the external force. The advantages of piezoelectric sensors are wide bandwidth, high sensitivity, high signal-to-noise ratio, simple structure, reliable operation and light weight. Piezoelectric materials are materials with piezoelectric effect, including: piezoelectric crystals, piezoelectric ceramics, piezoelectric polymers, etc.

[0043] In one embodiment, the shell inside the earphone housing where the piezoelectric sensor is disposed may be formed of ceramic and polarized, and the piezoelectric sensor is formed by internal printed wiring.

[0044] In one implementation, the preset touch gesture includes at least one of the following gestures: tap, heavy tap, double tap, triple tap, and slide.

[0045] Wherein, the sliding gesture includes: sliding up or sliding down;

[0046] In one embodiment, Figure 2 As shown, the earphone housing has a touch area, the roughness of the outer wall 101 of the housing 1 in the touch area varies, and one or more elastic wave sensors 2 are installed on the inner wall 102 of the housing 1 in the touch area. The elastic wave sensor is in close contact with the inner wall of the touch area. The elastic wave sensor can be in a strip, ring, circle, square or other shape. The touch area can be set on the handle housing of the earphone.

[0047] In one embodiment, the step of identifying a touch operation on the housing through an electrical signal detected by an elastic wave sensor installed in the housing of the earphone includes:

[0048] Acquiring an electrical signal detected by the elastic wave sensor;

[0049] If the change of the electrical signal meets the expected change of the electrical signal detected by the elastic wave sensor when there is a sliding operation on the touch area, it is determined that the touch area is subjected to a sliding operation;

[0050] In one embodiment, the expected change includes at least one of the following:

[0051] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from greater to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from less to greater;

[0052] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more;

[0053] The energy value of each frequency band is calculated by analyzing the spectrum of the electrical signal, wherein when sliding from a position with greater roughness to a position with less roughness in the touch area, the energy value of each frequency band in the spectrum changes in the following trends: the energy value of the low frequency band changes in a decreasing trend, and the energy value of the high frequency band changes in an increasing trend. When sliding from a position with less roughness to a position with greater roughness in the touch area, the energy value of each frequency band in the spectrum changes in the following trends: the energy value of the low frequency band changes in a decreasing trend, and the energy value of the high frequency band changes in a decreasing trend.

[0054] like Figure 2 As shown, the roughness of the touch area decreases from top to bottom. In other embodiments, the roughness of the touch area may also increase from top to bottom.

[0055] The roughness of the touch area can also be varied according to design requirements. By designing the difference in the roughness distribution of the touch area shell, the track of the touch gesture can be accurately identified through the change in the amplitude or frequency of the electrical signal, thereby enriching the design of the touch gesture.

[0056] In one embodiment, the control instruction corresponding to the touch gesture includes at least one of the following: play / pause, play the previous song, play the next song, volume up, volume down, answer / hang up the phone; wherein the play instruction and the pause instruction use the same touch gesture, if the device is in the play state, the touch gesture when touching corresponds to the pause instruction, if the device is in the pause or stop state, the touch gesture when touching corresponds to the play instruction. wherein the answer phone instruction and the hang up phone instruction use the same touch gesture, if the device is not in a call state, the touch gesture when touching corresponds to the answer phone instruction, if the device is in a call state, the touch gesture when touching corresponds to the hang up phone instruction.

[0057] A correspondence between a touch gesture and a control instruction may be shown in the following Table 1:

[0058] Touch gestures Control instructions Slide up Play previous song Downward Play next song Tap Volume down Heavy Attack Volume Up double click Play / Pause Triple Strike Answer / end call

[0059] Table 1

[0060] In one embodiment, before the electrical signal detected by the elastic wave sensor installed in the earphone shell identifies the touch operation applied to the shell, the method also includes: detecting that the ear-into-ear part of the earphone is close to the human body through the capacitive effect of the piezoelectric sensor installed in the earphone shell at the ear-into-ear part; and / or detecting that the ear-into-ear part of the earphone is subjected to pressure from the auricle through the elastic wave sensor installed in the earphone shell at the ear-into-ear part.

[0061] The capacitive effect of the piezoelectric sensor means that when the piezoelectric sensor is used as a capacitive element, when a human body or a conductor approaches the piezoelectric sensor, the piezoelectric sensor generates electric charge that accumulates between the two electrodes of the sensor, that is, the capacitance between the two electrodes of the piezoelectric sensor changes. Therefore, according to the change in the capacitance between the two electrodes of the piezoelectric sensor, it is possible to detect whether the human body is close to the piezoelectric sensor.

[0062] The elastic wave sensor includes: a piezoelectric sensor or a strain sensor;

[0063] In one embodiment, when the elastic wave sensor is a piezoelectric sensor, the piezoelectric sensor for detecting whether the ear-entry portion of the earphone is close to the human body can also be used as an elastic wave sensor to detect whether the ear-entry portion of the earphone is subjected to pressure from the auricle;

[0064] In one implementation, the elastic wave sensor for in-ear detection and the elastic wave sensor for touch area gesture detection may time-share the same sensor; the sensor may be installed at the in-ear portion of the earphone.

[0065] In one embodiment, before the elastic wave sensor installed in the earphone housing at the earphone in-ear portion detects that the earphone in-ear portion is subjected to pressure from the auricle, the method further includes:

[0066] The proximity of the earphone inlet portion to the human body is detected by a capacitive sensor or an infrared sensor installed in the earphone housing in the earphone inlet portion.

[0067] When a human body (detection object) approaches the capacitive sensor, the charge between the two detection electrodes of the capacitive sensor increases, causing the capacitance between the detection electrodes to increase accordingly. The change in the capacitance of the capacitive sensor can detect whether the human body is close to the capacitive sensor.

[0068] Among them, the infrared sensor can sense the infrared radiation of the target and use the physical properties of infrared to measure. The human body is a radiator of infrared light of a specific wavelength. When the human body is close to the infrared sensor, the infrared sensor uses the pyroelectric effect to release electric charge. The processing circuit determines whether the human body is close to the infrared sensor by detecting the change in the amount of charge.

[0069] In the above implementation, by using elastic wave sensors, the key operation in the prior art can be improved to a touch solution, and the control method of the headset is improved by a low-cost touch method, which greatly reduces the probability of false triggering of control instructions. In addition, by designing the difference in the roughness distribution of the outer wall of the touch area, the trajectory of the touch gesture can be accurately identified through the change in the amplitude or frequency of the electrical signal, thereby enriching the design of the touch gesture. Furthermore, the sensor installed inside the headset shell at the in-ear position can conveniently realize in-ear detection, further improving the reliability of headset control.

[0070] Example 2

[0071] like Figure 3 As shown, an embodiment of the present invention provides a headset control method, the method comprising:

[0072] Step S110, detecting whether the ear-entry portion of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the ear-entry portion; and / or detecting whether the ear-entry portion of the earphone is subjected to pressure from the auricle through an elastic wave sensor installed in the earphone shell at the ear-entry portion;

[0073] Step S120: When it is detected that the earphone's in-ear portion is close to the human body and / or the earphone's in-ear portion is subjected to pressure from the auricle, it is determined that the earphone meets the in-ear condition.

[0074] The capacitive effect of the piezoelectric sensor means that when the piezoelectric sensor is used as a capacitive element, when a human body or a conductor approaches the piezoelectric sensor, the piezoelectric sensor generates electric charge that accumulates between the two electrodes of the sensor, that is, the capacitance between the two electrodes of the piezoelectric sensor changes. Therefore, according to the change in the capacitance between the two electrodes of the piezoelectric sensor, it is possible to detect whether the human body is close to the piezoelectric sensor.

[0075] The elastic wave sensor includes: a piezoelectric sensor or a strain sensor;

[0076] When the elastic wave sensor is a piezoelectric sensor, the piezoelectric sensor for detecting whether the ear-entry portion of the earphone is close to the human body can also be used as an elastic wave sensor to detect whether the ear-entry portion of the earphone is subjected to pressure from the auricle;

[0077] The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films.

[0078] In one embodiment, the shell inside the earphone housing at the in-ear portion may be formed of ceramic and polarized, and a piezoelectric sensor may be formed by internal printed wiring.

[0079] In one embodiment, before the elastic wave sensor installed in the earphone housing at the earphone in-ear portion detects that the earphone in-ear portion is subjected to pressure from the auricle, the method further includes:

[0080] The proximity of the earphone inlet portion to the human body is detected by a capacitive sensor or an infrared sensor installed in the earphone housing in the earphone inlet portion.

[0081] When a human body (detection object) approaches the capacitive sensor, the charge between the two detection electrodes of the capacitive sensor increases, causing the capacitance between the detection electrodes to increase accordingly. The change in the capacitance of the capacitive sensor can detect whether the human body is close to the capacitive sensor.

[0082] Among them, the infrared sensor can sense the infrared radiation of the target and use the physical properties of infrared to measure. The human body is a radiator of infrared light of a specific wavelength. When the human body is close to the infrared sensor, the infrared sensor uses the pyroelectric effect to release electric charge. The processing circuit determines whether the human body is close to the infrared sensor by detecting the change in the amount of charge.

[0083] The method of detecting that the earphone inlet portion is close to the human body through the capacitive effect of a piezoelectric sensor installed in an earphone housing at the earphone inlet portion includes:

[0084] Collecting an electrical signal generated by a capacitive effect of a piezoelectric sensor installed in an earphone housing at an in-ear portion when the in-ear portion is close to a human body; determining that the in-ear portion is close to the human body when the electrical signal is identified as an expected electrical signal when the in-ear portion is close to a human body;

[0085] The step of detecting the pressure of the auricle on the ear-entry portion of the earphone by an elastic wave sensor installed in the earphone housing at the ear-entry portion includes:

[0086] An elastic wave sensor installed in the earphone shell at the in-ear part detects the elastic wave signal generated when the earphone shell at the in-ear part is subjected to pressure and converts it into an electrical signal; when the electrical signal is identified as an expected electrical signal when the in-ear part is subjected to auricular pressure, it is determined that the in-ear part of the earphone is subjected to auricular pressure.

[0087] In one embodiment, when the earphone does not meet the ear-in condition, the method further includes:

[0088] Determine whether the speaker of the headset is in the playing state;

[0089] When the speaker is in a playing state, a pause instruction is executed to temporarily stop the playing of the speaker; and whether the earphone meets the ear-entry condition again is monitored, and if so, a play instruction is executed to resume the playing of the speaker.

[0090] The earphone's in-ear portion includes a speaker and an earphone shell that accommodates the speaker, and also includes a sensor disposed inside the earphone shell.

[0091] In one embodiment, Figure 4-a As shown, an elastic wave sensor 2 is installed in the earphone housing 3 at the in-ear portion, and the elastic wave sensor 2 is close to the inner wall 302 of the earphone housing 3 at the auricle side.

[0092] The earphone shell is hard. When the earphone is inserted into the ear, the pressure of the auricle will cause the earphone shell at the earphone shell to be stressed and produce tiny fluctuations. The fluctuations propagate in the earphone shell in the form of elastic waves. When the elastic wave sensor is in close contact with the inner wall of the earphone shell on the auricle side, the elastic wave signal generated when the earphone is in the ear can be detected.

[0093] In one embodiment, the elastic wave sensor disposed inside the earphone housing at the in-ear position is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0094] In other implementations, the elastic wave sensor may also be a strain sensor or the like.

[0095] In one embodiment, the expected electrical signal when subjected to auricular pressure includes: the amplitude of the electrical signal is greater than or equal to a threshold; or the power of the electrical signal is greater than or equal to a threshold. The threshold can be preset in the memory of the headset chip before leaving the factory, or obtained through self-learning of the headset after leaving the factory.

[0096] In one embodiment, the shell inside the earphone housing at the in-ear portion may be formed of ceramic and polarized, and a piezoelectric sensor may be formed by internal printed wiring.

[0097] In one embodiment, Figure 4-b As shown, a piezoelectric sensor 4 is installed in the earphone housing 3 at the in-ear portion, and the piezoelectric sensor 4 is close to the inner wall 302 of the earphone housing 3 at the auricle side.

[0098] When a piezoelectric sensor is used as a capacitive element, when a human body or a conductor approaches the piezoelectric sensor, the piezoelectric sensor generates electric charge that accumulates between the two electrodes of the sensor, that is, the capacitance between the two electrodes of the piezoelectric sensor changes. Therefore, based on the change in capacitance between the two electrodes of the piezoelectric sensor, it is possible to detect whether a human body is close to the piezoelectric sensor.

[0099] In one embodiment, the piezoelectric sensor that detects whether the ear-entering part of the earphone is close to the human body can first use the capacitive effect to detect whether the human body is close, and then use the piezoelectric effect of the piezoelectric sensor as an elastic wave sensor to detect whether the ear-entering part of the earphone is subjected to pressure from the auricle.

[0100] In one embodiment, Figure 4-c As shown, an elastic wave sensor 2 and a capacitive sensor 7 are installed in the earphone housing 3 at the in-ear position. The elastic wave sensor 2 and the capacitive sensor 7 are both close to the inner wall 302 of the earphone housing 3 at the auricle side.

[0101] When the ear skin approaches the capacitive sensor, the charge between the two detection electrodes of the capacitive sensor increases, causing the capacitance between the detection electrodes to increase accordingly. The change in the capacitance of the capacitive sensor can detect whether the human body is close to the capacitive sensor.

[0102] In one embodiment, Figure 4-dAs shown, an elastic wave sensor 2 and an infrared sensor 5 are installed in the earphone housing 3 at the in-ear part. The elastic wave sensor 2 is close to the inner wall 302 of the earphone housing 3 on the auricle side. The infrared sensor 5 can be installed on a circuit board inside the earphone housing, and a light-transmitting hole 6 is provided on the earphone housing 3 at the in-ear part corresponding to the photosensitive part of the infrared sensor 5. When the in-ear part of the earphone is inserted into the ear, the infrared sensor can sense the infrared rays radiated by the ear skin, and the infrared sensor releases electric charge outward by the pyroelectric effect, and the processing circuit determines whether the human body is close to the infrared sensor by detecting the change in the amount of charge.

[0103] In one implementation, after determining that the earphone meets the ear-in condition, the method further includes:

[0104] The touch operation on the housing is identified by an electrical signal detected by an elastic wave sensor installed in the housing of the earphone; and a control instruction corresponding to the touch gesture is executed when the touch operation is identified as a preset touch gesture.

[0105] In one embodiment, the earphone housing has a touch area, the outer wall of the touch area has a varying roughness, and one or more elastic wave sensors are installed on the inner wall of the touch area. The touch area can be arranged on the handle housing of the earphone.

[0106] In one embodiment, the step of identifying a touch operation on the housing through an electrical signal detected by an elastic wave sensor installed in the housing of the earphone includes:

[0107] Acquiring an electrical signal detected by the elastic wave sensor;

[0108] If the change in the electrical signal meets the expected change in the electrical signal detected by the elastic wave sensor when there is a sliding operation on the touch area, it is determined that the touch area is subjected to a sliding operation.

[0109] In one embodiment, the expected change includes at least one of the following:

[0110] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from greater to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from less to greater;

[0111] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more;

[0112] In one embodiment, the roughness of the touch area decreases from top to bottom or increases from top to bottom.

[0113] In one embodiment, the elastic wave sensor for in-ear detection and the elastic wave sensor for touch area gesture detection can time-share the same sensor; the sensor can be installed at the in-ear part of the earphone. In addition, when the elastic wave sensor is a piezoelectric sensor, the capacitance effect of the piezoelectric sensor can also be used to detect whether a human body is close when performing in-ear detection.

[0114] In the above implementation manner, by installing the sensor inside the earphone housing at the ear-entry position, earphone entry detection can be conveniently implemented, thereby further improving the reliability of earphone control.

[0115] Example 3

[0116] like Figure 5 As shown, an embodiment of the present invention provides a handle module, comprising: a housing 1 and an elastic wave sensor 2 arranged inside the housing 1;

[0117] The elastic wave sensor is used to detect the elastic wave signal generated when the housing of the handle module is touched, and convert it into an electrical signal.

[0118] The above-mentioned handle module, by setting an elastic wave sensor in the handle shell, detects the touch operation on the handle shell through the elastic wave sensor. Compared with the handle controlled by physical buttons, the control method is more flexible and the probability of false triggering of control instructions is reduced.

[0119] In one embodiment, the handle housing has a touch area, the roughness of the outer wall of the touch area varies, and one or more elastic wave sensors are installed on the inner wall of the touch area. The elastic wave sensor is in close contact with the inner wall of the touch area. The elastic wave sensor can be in the shape of a strip, ring, circle, square or other shapes.

[0120] In one embodiment, the roughness of the touch area decreases from top to bottom or increases from top to bottom.

[0121] The earphone shell is hard, and the touch operation will cause the earphone shell to be subjected to force and produce tiny fluctuations. The fluctuations propagate in the earphone shell in the form of elastic waves. When the elastic wave sensor is in close contact with the inner wall of the earphone shell in the touch area, the elastic wave signal generated by the touch operation can be detected.

[0122] In one embodiment, the elastic wave sensor disposed inside the handle housing is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0123] In one embodiment, the elastic wave sensor is a piezoelectric sensor; the shell inside the outer shell of the handle module is formed by ceramic and polarized, and the piezoelectric sensor is formed by internal printed wiring.

[0124] Example 4

[0125] like Figure 6 As shown, an embodiment of the present invention provides a headset, comprising: a handle module 10 and a main control module 20;

[0126] The handle module is used to detect the elastic wave signal generated when the housing of the handle module is touched through an elastic wave sensor installed in the housing of the headset handle module, and convert it into an electrical signal;

[0127] A main control module, used to obtain and identify the electrical signal generated by the handle module, and execute a control instruction corresponding to the touch gesture when the touch operation is identified as a preset touch gesture;

[0128] In the above embodiment, the headset sets an elastic wave sensor in the housing of the handle module, identifies the touch operation on the handle housing according to the electrical signal detected by the elastic wave sensor, and executes the control instruction corresponding to the touch gesture when the touch operation is identified as a preset touch gesture. Compared with the traditional button touch control, the control method of the above headset is flexible and reduces the probability of false triggering of control instructions, thereby improving the user's control experience.

[0129] In one embodiment, the handle housing has a touch area, the roughness of the outer wall of the touch area varies, and one or more elastic wave sensors are installed on the inner wall of the touch area. The elastic wave sensor is in close contact with the inner wall of the touch area. The elastic wave sensor can be in the shape of a strip, ring, circle, square or other shapes.

[0130] In one embodiment, the elastic wave sensor disposed inside the handle housing is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0131] In one embodiment, the shell inside the earphone handle housing can be formed of ceramic and polarized, and a piezoelectric sensor is formed by internal printed wiring.

[0132] In one embodiment, the roughness of the touch area decreases from top to bottom or increases from top to bottom.

[0133] In one implementation, the preset touch gesture includes at least one of the following gestures: tap, heavy tap, double tap, triple tap, and slide.

[0134] Wherein, the sliding gesture includes: sliding up or sliding down;

[0135] In one embodiment, the main control module is used to identify the electrical signal generated by the handle module in the following manner: if the change of the electrical signal meets the expected change of the electrical signal detected by the piezoelectric sensor when there is a sliding operation on the touch area, it is determined that the touch area is subjected to a sliding operation;

[0136] In one embodiment, the expected change includes at least one of the following:

[0137] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from greater to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from less to greater;

[0138] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more;

[0139] The roughness of the touch area can also be varied according to design requirements. By designing the handle shell with a different roughness distribution, the track of the touch gesture can be accurately identified through the change of the electrical signal amplitude or frequency, thereby enriching the design of the touch gesture.

[0140] In one embodiment, Figure 7 As shown, the earphone also includes an in-ear detection module 30;

[0141] The in-ear detection module is used to detect whether the in-ear portion of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the in-ear portion; and / or to detect whether the in-ear portion of the earphone is subjected to pressure from the auricle through an elastic wave sensor installed in the earphone shell at the in-ear portion;

[0142] The main control module is further used to determine that the earphone meets the ear insertion condition when it is detected that the ear insertion part of the earphone is close to the human body and / or the ear insertion part of the earphone is subjected to pressure from the auricle.

[0143] In one embodiment, Figure 8 As shown, the elastic wave sensor for in-ear detection and the elastic wave sensor for touch area gesture detection can time-share the same sensor; the sensor can be installed at the in-ear part of the earphone. In addition, when the elastic wave sensor is a piezoelectric sensor, the capacitance effect of the piezoelectric sensor can also be used to detect whether a human body is close when performing in-ear detection.

[0144] In the above implementation, by providing an elastic wave sensor in the earphone handle, the button operation in the prior art can be improved to a touch solution, and the control method of the earphone is improved by a low-cost handle touch method, which greatly reduces the probability of false triggering of control instructions. In addition, by designing the differential distribution of the roughness of the outer wall of the handle shell, the trajectory of the touch gesture can be accurately identified through changes in the amplitude or frequency of the electrical signal, thereby enriching the design of the touch gesture. Furthermore, by installing a sensor inside the earphone shell at the in-ear position, in-ear detection can be easily achieved, further improving the reliability of earphone control.

[0145] Example 5

[0146] like Fig. 9 As shown, an embodiment of the present invention provides a headset, including: an in-ear detection module 30 and a main control module 20;

[0147] An in-ear detection module is used to detect whether the in-ear portion of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the in-ear portion; and / or to detect whether the in-ear portion of the earphone is subjected to pressure from the auricle through an elastic wave sensor installed in the earphone shell at the in-ear portion;

[0148] A main control module, configured to determine that the earphone meets the ear insertion condition when detecting that the ear insertion portion of the earphone is close to the human body and / or the ear insertion portion of the earphone is subjected to pressure from the auricle;

[0149] In the above-mentioned embodiment, in-ear detection can be achieved by arranging an elastic wave sensor and / or a piezoelectric sensor in the earphone housing at the in-ear position, thereby reducing the probability of false triggering of control instructions and improving the user's control experience.

[0150] In one embodiment, the elastic wave sensor disposed inside the earphone housing at the in-ear position is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0151] In one embodiment, the shell inside the earphone housing at the in-ear portion may be formed of ceramic and polarized, and a piezoelectric sensor may be formed by internal printed wiring.

[0152] When the elastic wave sensor is a piezoelectric sensor, the piezoelectric sensor for detecting whether the ear-entry portion of the earphone is close to the human body can also be used as an elastic wave sensor to detect whether the ear-entry portion of the earphone is subjected to pressure from the auricle;

[0153] In one embodiment, Figure 7 As shown, the headset further includes a handle module 10;

[0154] The handle module is used to detect the touch operation on the handle housing through an elastic wave sensor installed in the handle housing of the headset and generate an electrical signal;

[0155] A main control module, used to obtain and identify the electrical signal generated by the handle module, and execute a control instruction corresponding to the touch gesture when the touch operation is identified as a preset touch gesture;

[0156] In the above embodiment, the headset sets an elastic wave sensor in the housing of the handle module, identifies the touch operation on the handle housing according to the electrical signal detected by the elastic wave sensor, and executes the control instruction corresponding to the touch gesture when the touch operation is identified as a preset touch gesture. Compared with the traditional button touch control, the control method of the above headset is flexible and reduces the probability of false triggering of control instructions, thereby improving the user's control experience.

[0157] In one embodiment, the handle housing has a touch area, the roughness of the outer wall of the touch area varies, and one or more elastic wave sensors are installed on the inner wall of the touch area. The elastic wave sensor is in close contact with the inner wall of the touch area. The elastic wave sensor can be in the shape of a strip, ring, circle, square or other shapes.

[0158] In one embodiment, the elastic wave sensor disposed inside the handle housing is a piezoelectric sensor. The piezoelectric sensor includes: piezoelectric ceramics, piezoelectric crystals or piezoelectric films, etc. In other embodiments, the elastic wave sensor may also be a strain sensor, etc.

[0159] In one embodiment, the shell inside the earphone handle housing can be formed of ceramic and polarized, and a piezoelectric sensor is formed by internal printed wiring.

[0160] In one embodiment, the roughness of the touch area decreases from top to bottom or increases from top to bottom.

[0161] In one implementation, the preset touch gesture includes at least one of the following gestures: tap, heavy tap, double tap, triple tap, and slide.

[0162] Wherein, the sliding gesture includes: sliding up or sliding down;

[0163] In one embodiment, the main control module is used to identify the electrical signal generated by the handle module in the following manner: if the change of the electrical signal meets the expected change of the electrical signal detected by the piezoelectric sensor when there is a sliding operation on the touch area, it is determined that the touch area is subjected to a sliding operation;

[0164] In one embodiment, the expected change includes at least one of the following:

[0165] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from greater to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the amplitude of the electrical signal changes from less to greater;

[0166] When sliding from a position with greater roughness to a position with less roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; when sliding from a position with less roughness to a position with greater roughness in the touch area, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more;

[0167] The roughness of the touch area can also be varied according to design requirements. By designing the handle shell with a different roughness distribution, the track of the touch gesture can be accurately identified through the change of the electrical signal amplitude or frequency, thereby enriching the design of the touch gesture.

[0168] In one embodiment, Figure 8 As shown, the elastic wave sensor for in-ear detection and the elastic wave sensor for touch area gesture detection can time-share the same sensor; the sensor can be installed at the in-ear part of the earphone. In addition, when the elastic wave sensor is a piezoelectric sensor, the capacitance effect of the piezoelectric sensor can also be used to detect whether a human body is close when performing in-ear detection.

[0169] In the above-mentioned implementation, the in-ear detection can be easily realized by installing the sensor inside the earphone shell at the in-ear position, thereby further improving the reliability of earphone control. By setting an elastic wave sensor inside the earphone shell, the key operation in the prior art can be improved to a touch solution, and the control method of the earphone is improved by a low-cost handle touch method, which greatly reduces the probability of false triggering of control instructions. In addition, by designing the differential distribution of the roughness of the outer wall of the shell in the touch area, the trajectory of the touch gesture can be accurately identified through the change of the amplitude or frequency of the electrical signal, thereby enriching the design of the touch gesture.

[0170] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0171] It should be noted that the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A method for controlling an earphone, the method comprising: Detecting whether the earphone inlet is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone housing in the earphone inlet; and detecting whether the ear-entry portion of the earphone is subjected to pressure from the auricle by means of an elastic wave sensor installed in the earphone housing at the ear-entry portion, wherein the piezoelectric sensor for detecting whether the ear-entry portion of the earphone is close to the human body first uses a capacitive effect to detect whether the human body is close, and then uses the piezoelectric effect of the piezoelectric sensor as the elastic wave sensor to detect whether the ear-entry portion of the earphone is subjected to pressure from the auricle; When it is detected that the earphone's in-ear portion is close to the human body and the earphone's in-ear portion is subjected to pressure from the auricle, determining that the earphone meets the in-ear condition; The housing has a touch area, and the roughness of the outer wall of the touch area varies; after determining that the earphone meets the in-ear condition, the method further includes: identifying the touch operation on the housing through the electrical signal detected by the elastic wave sensor installed in the housing of the earphone, including: acquiring the electrical signal detected by the elastic wave sensor; if the change of the electrical signal meets the expected change of the electrical signal detected by the elastic wave sensor when there is a sliding operation on the touch area, determining that the touch area is subjected to a sliding operation; and executing the control instruction corresponding to the touch gesture when the touch operation is identified as a preset touch gesture; The expected change includes: sliding from a position with greater roughness in the touch area to a position with less roughness, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; sliding from a position with less roughness in the touch area to a position with greater roughness, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more.

2. The method according to claim 1, characterized in that: The method of detecting that the earphone inlet portion is close to the human body by using the capacitive effect of a piezoelectric sensor installed in an earphone housing at the earphone inlet portion includes: An electric signal generated by the capacitive effect of a piezoelectric sensor installed in an earphone housing at the in-ear portion is collected when the in-ear portion is close to a human body; when the electric signal is identified as an expected electric signal when the in-ear portion is close to a human body, it is determined that the in-ear portion is close to the human body.

3. The method according to claim 1, characterized in that: The method of detecting whether the earphone inlet portion is subjected to auricular pressure by an elastic wave sensor installed in an earphone housing in the earphone inlet portion comprises: An elastic wave sensor installed in the earphone shell at the in-ear part detects the elastic wave signal generated when the earphone shell at the in-ear part is subjected to pressure and converts it into an electrical signal; when the electrical signal is identified as an expected electrical signal when the in-ear part is subjected to auricular pressure, it is determined that the in-ear part of the earphone is subjected to auricular pressure.

4. The method according to claim 1, characterized in that: Before detecting that the ear-entry portion of the earphone is subjected to pressure from the auricle by an elastic wave sensor installed in the earphone housing at the ear-entry portion, the method further includes: The proximity of the earphone inlet portion to the human body is detected by a capacitive sensor or an infrared sensor installed in the earphone housing in the earphone inlet portion.

5. A headset, comprising: In-ear detection module and main control module; An in-ear detection module, used to detect whether the in-ear part of the earphone is close to the human body through the capacitive effect of a piezoelectric sensor installed in the earphone shell at the in-ear part; and detecting whether the ear-entry portion of the earphone is subjected to pressure from the auricle by means of an elastic wave sensor installed in the earphone shell at the ear-entry portion, wherein the piezoelectric sensor for detecting whether the ear-entry portion of the earphone is close to the human body first uses a capacitive effect to detect whether the human body is close, and then uses the piezoelectric effect of the piezoelectric sensor as the elastic wave sensor to detect whether the ear-entry portion of the earphone is subjected to pressure from the auricle; wherein the shell has a touch area, and the roughness of the outer wall of the touch area varies; A main control module is used to determine that the earphone meets the ear-in-ear condition when it is detected that the earphone's ear-in-ear part is close to the human body and the earphone's ear-in-ear part is subjected to the pressure of the auricle; and, after determining that the earphone meets the ear-in-ear condition, identify the touch operation on the shell through the electrical signal detected by the elastic wave sensor installed in the earphone shell, including: acquiring the electrical signal detected by the elastic wave sensor; if the change of the electrical signal conforms to the expected change of the electrical signal detected by the elastic wave sensor when there is a sliding operation in the touch area, then determine that the touch area is subjected to a sliding operation; when the touch operation is identified as a preset touch gesture, execute the control instruction corresponding to the touch gesture; the expected change includes: sliding from a position with large roughness in the touch area to a position with small roughness, the expected change is that the high-frequency component of the electrical signal changes from less to more, and the low-frequency component changes from more to less; sliding from a position with small roughness in the touch area to a position with large roughness, the expected change is that the high-frequency component of the electrical signal changes from more to less, and the low-frequency component changes from less to more.

Images