A bilateral touch staggered sliding volume adjustment method and earphone using the method

Abstract

The present invention discloses a bilateral touch staggered sliding volume adjustment method and a headset using the method, and belongs to the field of headset volume adjustment technology. The bilateral touch staggered sliding volume adjustment method is based on the fact that a left touch button array and a right touch button array are respectively arranged on both sides of the headset handle, and the left and right touch button arrays are connected to a sliding touch IC. The bilateral touch staggered sliding volume adjustment method adopted is ergonomic, and the method is the same as the traditional mechanical roller operation, and the experience is strong during operation; second, the volume adjustment control area is large, and the appropriate positions on both sides of the device can be designed as volume adjustment areas, without the need to grope and search, and can be adjusted directly by grabbing with one hand; third, the volume adjustment logic is that the operation is considered valid only when one side is up and the other side is down, which reduces the chance of misoperation; fourth, the mode of cooperation between the thumb and the index finger is easy to fix the device, and it will not swing, which is easy to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of earphone volume adjustment, and in particular relates to a bilateral touch staggered sliding volume adjustment method and an earphone using the method. Background Art

[0002] The volume adjustment of current personal electronic devices such as headphones is mostly in the "+", "-" button mode, or unilateral touch sliding mode. These volume adjustment modes are relatively mature in technology and simple to operate, and are the mainstream varieties on the market.

[0003] Although the above-mentioned volume adjustment modes are mature in technology and simple to operate, they also have some shortcomings. First, the functional area of ​​​​the volume control is small, and users need to grope with their hands, or need to take it off and operate it while watching, which is not very convenient to use. Second, these volume adjustment modes are difficult to fix with one hand when adjusting the volume, and sometimes both hands are required to complete it. Third, it is easy to operate by mistake. Because the volume button function area is small, it is easy to operate the volume button by mistake when operating other buttons. Fourth, with the gradual rise of wireless TWS headphones in recent years, TWS headphones are small in size, have many functions, and lack space for placing more buttons. The function of adjusting the volume of the headphones is generally cancelled.

[0004] These issues will affect the user experience. Summary of the invention

[0005] The embodiments of the present invention provide a bilateral touch staggered sliding volume adjustment method and headphones using the method, which aim to solve the problems encountered in adjusting the headphone volume. The method adopts a design concept that simulates the traditional mechanical roller volume adjustment and makes full use of the area of ​​the headphone handle, that is, the thumb and index finger cooperate with each other to touch and slide up and down on both sides of the device alternately to increase or decrease the volume.

[0006] The embodiment of the present invention is implemented as follows: a bilateral touch staggered sliding volume adjustment method, based on the left touch key array and the right touch key array being respectively arranged on both sides of the earphone handle, and the left and right touch key arrays being connected to the sliding touch IC, the specific adjustment method includes the following contents:

[0007] S1: Slide the touch IC to scan the left touch key array and the right touch key array of the headset to determine whether any key is pressed. If no key array is detected to be pressed, continue to detect; if a key array is detected to be pressed, go to step S2;

[0008] S2: Determine whether the pressing of the left and right touch key arrays causes staggered sliding (the staggered means that the sliding directions of the left and right sides are opposite); if staggered sliding does not occur, continue to re-determine; if staggered sliding occurs, enter step S3;

[0009] S3: Confirming the voltage output value by comparing the pressing and sliding of the left touch key array with the pressing and sliding of the right touch key array;

[0010] S4: By accumulating the voltage output values ​​in S3, the DAC output volume is adjusted accordingly, completing the volume adjustment by bilateral touch staggered sliding.

[0011] The determination of whether a key is pressed in step S1 is mainly carried out in the following manner:

[0012] (1) A sensing capacitor CS is formed between the left and right touch key arrays and the ground of the sliding touch IC they are in contact with. When the surrounding environment remains unchanged, the sensing capacitance value of the sensing capacitor CS is fixed; when a finger presses a key, a sensing capacitor CT is formed between the pressing finger and the ground;

[0013] (2) The sensing capacitor CT is connected in parallel with the sensing capacitor CS. When a key is pressed, the capacitance value increases and its charging and discharging time also increases. The touch key IC can determine whether a touch key is pressed by detecting the change in the charging and discharging time.

[0014] The staggered sliding in step S2 is a touch sliding on both the left and right sides, and the sliding on the left and right sides is a staggered sliding in opposite directions. The preferred implementation is: the thumb touches and slides upwards, and the index finger touches and slides downwards at the same time, which is defined as the direction of the volume "+"; the thumb touches and slides downwards, and the index finger touches and slides upwards at the same time, which is defined as the direction of the volume "-".

[0015] Among them: in step S3, the voltage output value is confirmed by comparing the left touch button array with the right touch button array, preferably: the number of pressed sliding keys in the left touch button array ≥ the number of pressed sliding keys in the right touch button array, and the voltage output value is determined by the left touch button array; if the number of pressed sliding keys in the left touch button array ≤ the number of pressed sliding keys in the right touch button array; the voltage output value is determined by the right touch button array.

[0016] The accumulation of the voltage output values ​​in step S3 in step S4 is specifically implemented in the following manner:

[0017] The voltage output value is confirmed in step S3. When a valid sliding touch event occurs again, the output voltage U_O_SPK is accumulated.

[0018] U_O_SPK+=U_O_SPK;

[0019] If invalid, the MCU will maintain the original voltage output, the speaker will also maintain the original volume, and continue to determine whether a touch event occurs.

[0020] The present invention also provides an earphone for adjusting the volume using the above method, comprising an earphone handle, an earphone cavity, an earphone top cover, a speaker, an internal control bracket, and a left touch button array, a right touch button array, a sliding touch IC, an MCU microprocessor, a MIC, an FPC button, and a charging column arranged on the internal control bracket; the earphone top cover is arranged on the earphone handle and the earphone cavity, the speaker is arranged in the earphone cavity, the left touch button array and the right touch button array are respectively arranged on both sides of the earphone handle; the left touch button array and the right touch button array are respectively connected to the sliding touch IC, and the sliding touch IC is connected to the MCU microprocessor; the MIC, the FPC button and the charging column are all connected to the MCU microprocessor.

[0021] The left touch key array and the right touch key array include a sliding touch key panel and a plurality of sliding touch keys arranged in sequence on the sliding touch key panel. Preferably, there are three sliding touch keys (T0, T1, and T2 in sequence).

[0022] The touch key array used in the present invention is a capacitive and resistive touch key array. Preferably, it is a capacitive touch key array; the capacitive touch key array is one of a copper foil type, a metal sheet type, and a flat-top cylindrical spring type, preferably a copper foil touch key array. The selected touch key array is intended to illustrate the problem and is not enough to constrain the selection of key materials for the patent. The sliding touch volume adjustment mode mentioned in the article is an array of touch keys composed of a group of touch keys. When operating, use your finger to slide the touch key in a certain direction on the touch key array to achieve volume adjustment.

[0023] As a preferred embodiment, it also includes an antenna pin and an LED lamp, and the antenna pin and the LED lamp are respectively arranged on the internal control bracket.

[0024] As a preferred embodiment, a button is also provided on the top cover of the earphone, and the button is matched with the FPC button.

[0025] The electrical connection of the left touch button array is specifically that the sliding touch buttons (T0-T2) are arranged on the sliding touch button board, the sliding touch buttons (T0-T2) are connected to the sliding touch IC through a parallel capacitor module (CS0 / / CT0—CS2 / / CT2), the sliding touch IC is connected to the MCU microprocessor, and the MCU microprocessor adjusts the volume of the speaker through a DAC power amplifier.

[0026] The parallel capacitor module (CS0 / / CT0—CS2 / / CT2) includes stray inductive capacitance (CS0-CS2) between the touch button (T0-T2) and the sliding touch IC connected in parallel, and inductive capacitance (CT0-CT2) generated between the finger and the touch button (T0-T2) when the touch button (T0-T2) is pressed; the inductive capacitance (CT0-CT2) is connected to the sliding touch button (T0-T2). When a person presses the sliding touch button (T0-T2), the inductive capacitance (CS0-CS2) and the inductive capacitance (CT0-CT2) are connected in parallel.

[0027] The bilateral touch staggered volume adjustment method of the present invention is specifically implemented as follows:

[0028] 1) The IO pin of the sliding touch IC is set to push-pull output, and the output voltage is 0V to discharge the CS capacitor;

[0029] 2) The IO pin of the sliding touch IC is set to a floating input, and the capacitor starts to be charged through the pull-up resistor, while the capture of the touch event of the touch button T is started;

[0030] 3) The sliding touch IC starts timing and waits for charging to the level detection threshold Vth. When Vth is reached, the charging time is compared. If it exceeds the preset time, that is, (Tcs+Tt)>Tcs, it is confirmed that the T_n key is pressed and a touch event occurs; Tcs is the time taken to charge to Vth when only the capacitor CS is present; Tcs+Tt is the time taken to charge to Vth when the CT capacitor is connected in parallel after the finger is pressed;

[0031] 4) When the confirmation button T_n is pressed, the corresponding button code is transmitted to the MCU microprocessor via I2C.

[0032] 5) Determine the direction of up and down sliding of the key: sliding the finger from T0 to T2 indicates sliding down, and sliding the finger from T2 to T0 indicates sliding up;

[0033] 6) The microprocessor MCU8 determines whether the sliding directions on the left and right sides are staggered in opposite directions according to the defined rules, so as to determine whether the volume adjustment is effective; if effective, the DAC output volume is adjusted to achieve the adjustment of the speaker volume "+" and "-"; when the right sliding touch event occurs again, the output voltage U_O_SPK is accumulated, that is,

[0034] U_O_SPK+=U_O_SPK

[0035] If invalid, the MCU will maintain the original voltage output, the speaker will also maintain the original volume, and continue to determine whether a touch event occurs.

[0036] The corresponding logical relationship between the touch response of the left and right earphones and the sliding touch button array on both sides of each earphone and the output voltage is explained as follows: The claim of the sliding touch volume adjustment mode in the present invention is not limited to whether both the left and right earphones adopt this sliding touch mode, which can be single ear or double ear. The touch response and specific voltage output of the sliding button array of the volume on the left and right sides of each earphone are also not limited to the specific implementation logic, which can be the accumulation of the output of both sides based on Table 1, or the side with the largest output can be selected, or the touch response of one side determines the output value of the voltage, and the other side is only used as a basis for judging whether the volume adjustment operation is effective.

[0037] For the convenience of explaining the problem, this article stipulates that the left earphone is the earphone for volume adjustment, and the side with the larger touch response value of the left and right buttons determines the final voltage output.

[0038] The beneficial effects of the technical solution of the present invention are as follows:

[0039] The present invention adopts a design concept that simulates the traditional mechanical roller volume adjustment, that is, the combination of the thumb and index finger, the two fingers staggered up and down touch and slide on both sides of the device to increase or decrease the volume. Because the design simulates the characteristics of the traditional mechanical roller volume adjustment, it has the following outstanding features: First, it conforms to ergonomic characteristics, the same method as the traditional mechanical roller operation, and the experience is strong during operation; second, the volume adjustment control area is large, and the appropriate position on both sides of the device can be designed as a volume adjustment area, without the need to grope and search, and can be directly adjusted by grabbing with one hand; third, the volume adjustment logic is that one side is up and the other side is down, and the operation is considered effective, which reduces the chance of misoperation; fourth, the mode of thumb and index finger cooperation is easy to fix the device, will not swing, and is easy to operate. This operation concept based on the retro mechanical roller volume adjustment and the organic combination of modern touch sliding volume adjustment technology solves the shortcomings of the existing volume adjustment mode, is easy to operate, greatly reduces the probability of misoperation, and also highlights the sense of design and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of earphones with bilateral touch interlaced sliding volume adjustment and interlaced sliding; 1a is a schematic diagram of earphones Figure 1 1b is a diagram of headphones Figure 2 1c is a schematic diagram of the thumb touching and sliding upwards and the index finger touching and sliding downwards at the same time; 1d is the thumb touching and sliding downwards and the index finger touching and sliding upwards at the same time. 1 Headphone handle, 2 Headphone cavity, 3 Left touch button array; 4 Right touch button array.

[0041] Figure 2 This is a flow chart of the bilateral touch staggered volume adjustment method in Embodiment 1 of the present invention.

[0042] Figure 3 This is an exploded view of the bilateral touch staggered sliding volume adjustment headset described in Example 1 of the present invention. Among them: 5 headset top cover, 6 internal control bracket, 7 sliding touch IC, 8 MCU microprocessor, 9 MIC, 10 FPC button, 11 charging column, antenna pin 12, LED light 13, button 14, sliding touch button board 31, sliding touch button 32.

[0043] Figure 4 This is a schematic diagram of the electrical connection of the left touch button array on one side of the headset handle of the first embodiment of the present invention. In which: 15 DAC power amplifier; 16 speaker; 17 parallel capacitor module CS0 / / CT0-CS2 / / CT2, where " / / " indicates that CS0 and CT0 are in parallel relationship when the T0 button is pressed.

[0044] Figure 5 The specific circuit diagram of the parallel capacitor module CS0 / / CT0-CS2 / / CT2 in Example 1 of the present invention (taking CS0 / / CT0 as an example); wherein: CS0 is the stray capacitance between the touch button T0 and the sliding touch IC; CT0 is the capacitance generated between the finger and the button T0 when the T0 button is pressed; K is a switch used to simulate the IO port of the sliding touch IC to control the charging and discharging process of the CS0 capacitor; T0: sliding touch button. The arrows in the figure indicate the process of a human hand pressing the sliding touch button to realize the parallel connection of CS0 and CT0.

[0045] Figure 6 Detection diagram of charging level detection in Example 1 of the present invention; wherein: Vth is the level detection threshold, Tcs is the time taken when only the inductive capacitor CS is charged to Vth, and Tcs+Tt is the time taken when the CT capacitor is connected in parallel after the finger is pressed to charge to Vth. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] Example 1

[0052] The embodiments of the present invention provide a bilateral touch staggered sliding volume adjustment method and headphones using the method, which aim to solve the problems encountered in adjusting the headphone volume. The method adopts a design concept that simulates the traditional mechanical roller volume adjustment, that is, the thumb and index finger cooperate with each other to touch and slide up and down on both sides of the device alternately to increase or decrease the volume.

[0053] The embodiment of the present invention is implemented as follows: Figure 2 As shown, a bilateral touch staggered sliding volume adjustment method is based on that a left touch button array and a right touch button array are respectively arranged on both sides of the earphone handle, and the left and right touch button arrays are connected to the sliding touch IC. The specific adjustment method includes the following contents:

[0054] S1: Slide the touch IC to scan the left touch key array and the right touch key array of the headset to determine whether any key is pressed. If no key array is detected to be pressed, continue to detect; if a key array is detected to be pressed, go to step S2;

[0055] S2: Determine whether the pressing of the left and right touch key arrays causes staggered sliding (the staggered means that the sliding directions of the left and right sides are opposite; if staggered sliding does not occur, continue to re-determine; if staggered sliding occurs, enter step S3;

[0056] S3: Confirming the voltage output value by comparing the pressing and sliding of the left touch key array with the pressing and sliding of the right touch key array;

[0057] S4: By accumulating the voltage output values ​​in S3, the DAC output volume is adjusted accordingly, completing the volume adjustment by bilateral touch staggered sliding.

[0058] The determination of whether a key is pressed in step S1 is mainly carried out in the following manner:

[0059] (1) Figure 3 As shown, the left and right touch button arrays (T0-T2) and the ground of the sliding touch IC they are in contact with form a sensing capacitor CS (CS0-CS2). When the surrounding environment remains unchanged, the sensing capacitance value of the sensing capacitor CS (CS0-CS2) is fixed; when a finger presses a button, the pressing finger and the ground form a sensing capacitor CT (CT0-CT2);

[0060] (2) The sensing capacitor CT is connected in parallel with the sensing capacitor CS. When a key is pressed, the capacitance value increases and its charging and discharging time also increases. The touch key IC can determine whether a touch key is pressed by detecting the change in the charging and discharging time.

[0061] The staggered sliding in step S2 is a touch sliding on both the left and right sides, and the sliding on the left and right sides is a staggered sliding in opposite directions. The preferred implementation is: the thumb touches and slides upwards, and the index finger touches and slides downwards at the same time, which is defined as the direction of the volume "+"; the thumb touches and slides downwards, and the index finger touches and slides upwards at the same time, which is defined as the direction of the volume "-".

[0062] Among them: in step S3, the voltage output value is confirmed by comparing the left touch button array with the right touch button array, preferably: the number of pressed sliding keys in the left touch button array ≥ the number of pressed sliding keys in the right touch button array, and the voltage output value is determined by the left touch button array; if the number of pressed sliding keys in the left touch button array ≤ the number of pressed sliding keys in the right touch button array; the voltage output value is determined by the right touch button array.

[0063] The accumulation of the voltage output values ​​in step S3 in step S4 is specifically implemented in the following manner:

[0064] The voltage output value is confirmed in step S3. When a valid sliding touch event occurs again, the output voltage U_O_SPK is accumulated.

[0065] U_O_SPK+=U_O_SPK;

[0066] If invalid, the MCU will maintain the original voltage output, the speaker will also maintain the original volume, and continue to determine whether a touch event occurs.

[0067] like Figure 1 a and Figure 1 As shown in FIG. 2 , the earphone comprises an earphone handle 1 and an earphone cavity 2, and a left touch button array 3 and a right touch button array 4 are respectively arranged on both sides of the earphone handle 1;

[0068] The touch button arrays are capacitive and resistive touch button arrays. In Example 1, a capacitive touch button array is used; the capacitive touch button array is one of a copper foil type, a metal sheet type, and a flat-top cylindrical spring type. In Example 1, a copper foil touch button array is preferred. The selected touch button array is intended to illustrate the problem and is not a constraint on the selection of button materials for a patent. The sliding touch volume adjustment mode mentioned in the article is an array of touch buttons composed of a group of touch buttons. During operation, the touch button is slid in a certain direction on the touch button array with a finger to adjust the volume, such as Figure 1 shown.

[0069] like Figure 1 c and Figure 1 As shown in d, Figure 1 c is a schematic diagram of the thumb touching and sliding upwards and the index finger touching and sliding downwards at the same time, and this operation direction is defined as the direction of volume "+" (this is one of the definition methods in one embodiment); Figure 1 d is a schematic diagram of the thumb touching and sliding downwards and the index finger touching and sliding upwards at the same time, and this operation method is defined as the direction of the volume "-" (this is one of the definition methods of the embodiment).

[0070] like Figure 3As shown, a headset with bilateral touch staggered sliding volume adjustment includes an earphone handle 1, an earphone cavity 2, an earphone top cover 5, a speaker (not marked), an internal control bracket 6, and a left touch button array 3, a right touch button array 4, a sliding touch IC7, an MCU microprocessor 8, a MIC9, an FPC button 10, and a charging column 11 arranged on the internal control bracket 6; the earphone top cover 5 is arranged on the earphone handle 1 and the earphone cavity 2, the speaker is arranged in the earphone cavity 2, the left touch button array 3 and the right touch button array 4 are respectively arranged on both sides of the earphone handle; the left touch button array 3 and the right touch button array 4 are respectively connected to the sliding touch IC7, and the sliding touch IC7 is connected to the MCU microprocessor 8; the MIC9, the FPC button 10 and the charging column 11 are all connected to the MCU microprocessor 8.

[0071] The left touch key array 3 and the right touch key array 4 include a sliding touch key panel 31 and a plurality of sliding touch keys 32 arranged in sequence on the sliding touch key panel 31. The number of the sliding touch keys is preferably three (T0, T1, T2 in sequence).

[0072] As a preferred embodiment, it also includes an antenna pin 12 and an LED lamp 13 , which are respectively arranged on the inner control bracket 6 .

[0073] As a preferred embodiment, a button 14 is further provided on the earphone top cover 5 , and the button 14 is matched with the FPC button 10 .

[0074] The electrical connection of the left touch key array 3 on one side of the headset handle 1 is as follows Figure 4 As shown, the sliding touch button 31 (T0-T2) is arranged on the sliding touch button board 32, and the sliding touch button 31 (T0-T2) is connected to the sliding touch IC7 through the parallel capacitor module 17 (CS0 / / CT0—CS2 / / CT2), and the sliding touch IC7 is connected to the MCU microprocessor 8, and the MCU microprocessor 8 adjusts the volume of the speaker 16 through the DAC power amplifier 15. The parallel capacitor module 17 (CS0 / / CT0—CS2 / / CT2), wherein " / / ", indicates that CS0 and CT0 are in parallel relationship when the T0 button is pressed.

[0075] like Figure 5 As shown, CS0 / / CT0 in the parallel capacitor module 17 (CS0 / / CT0—CS2 / / CT2) includes a stray inductive capacitor CS0 between the touch button T0 and the sliding touch IC connected in parallel, and an inductive capacitor CT0 generated between the finger and the button T0 when the T0 button is pressed; the inductive capacitor CT0 is connected to the sliding touch button T0. Figure 5 The arrow in the figure indicates that a person presses the sliding touch button T0 to realize the process of connecting CS0 and CT0 in parallel. In the figure, K is a switch used to simulate the IO port of the sliding touch IC to control the charging and discharging process of the CS0 capacitor: when the IO0 pin is set to push-pull output, the capacitor CS0 starts to discharge. When the IO0 pin is set to floating input, the capacitor CS0 starts to charge.

[0076] The bilateral touch staggered volume adjustment method of the present invention is specifically implemented as follows:

[0077] 1) The IO pin of the sliding touch IC7 is set to push-pull output, and the output voltage is 0V to discharge the CS capacitor;

[0078] 2) Set the IO pin of the sliding touch IC7 to floating input. Figure 5 The VCC in the circuit starts to charge the capacitor through the pull-up resistor, and at the same time, the capture of the touch event of the touch button T is started;

[0079] 3) Slide touch IC7 to start timing and wait for charging to the level detection threshold Vth. When Vth is reached, the charging time is compared. If it exceeds the preset time, Figure 6 As shown in the figure, when (Tcs+Tt)>Tcs, it is confirmed that the T_n key is pressed and a touch event occurs; Tcs is the time taken for the capacitor CS to charge to Vth when only the capacitor CS is present; Tcs+Tt is the time taken for the capacitor CT to charge to Vth when the finger is pressed and connected in parallel;

[0080] 4) When the confirmation button T_n is pressed, the corresponding button code is transmitted to the MCU via I2C.

[0081] 5) Determine the direction of up and down sliding of the key: sliding the finger from T0 to T2 indicates sliding down, and sliding the finger from T2 to T0 indicates sliding up; (as shown in Table 1)

[0082] Table 1: Up and down slide button sequence detection

[0083] Slide up button sequence detection T2→ T1→ T0 Down key sequence detection T0→ T1→ T2

[0084] 6) The microprocessor MCU8 determines whether the sliding directions on the left and right sides are staggered in opposite directions according to the defined rules, so as to determine whether the volume adjustment is effective; if effective, the DAC output volume is adjusted to achieve the adjustment of the speaker volume "+" and "-"; when the right sliding touch event occurs again, the output voltage U_O_SPK is accumulated, that is,

[0085] U_O_SPK+=U_O_SPK

[0086] If invalid, the MCU will maintain the original voltage output, the speaker will also maintain the original volume, and continue to determine whether a touch event occurs.

[0087] The corresponding logical relationship between the touch response of the left and right earphones and the sliding touch button array on both sides of each earphone and the output voltage is explained as follows: The claim of the sliding touch volume adjustment mode in the present invention is not limited to whether both the left and right earphones adopt this sliding touch mode, which can be single ear or double ear. The touch response and specific voltage output of the sliding button array of the volume on the left and right sides of each earphone are also not limited to the specific implementation logic, which can be the accumulation of the output of both sides based on Table 1, or the side with the largest output can be selected, or the touch response of one side determines the output value of the voltage, and the other side is only used as a basis for judging whether the volume adjustment operation is effective.

[0088] For the convenience of explaining the problem, this article stipulates that the left earphone is the earphone for volume adjustment, and the side with the larger touch response value of the left and right buttons determines the final voltage output.

[0089] The beneficial effects of the technical solution of the present invention are as follows:

[0090] The present invention adopts a design concept that simulates the traditional mechanical roller volume adjustment, that is, the combination of the thumb and index finger, the two fingers staggered up and down touch and slide on both sides of the device to increase or decrease the volume. Because the design simulates the characteristics of the traditional mechanical roller volume adjustment, it has the following outstanding features: First, it conforms to ergonomic characteristics, the same method as the traditional mechanical roller operation, and the experience is strong during operation; second, the volume adjustment control area is large, and the appropriate position on both sides of the device can be designed as a volume adjustment area, without the need to grope and search, and can be directly adjusted by grabbing with one hand; third, the volume adjustment logic is that one side is up and the other side is down, and the operation is considered effective, which reduces the chance of misoperation; fourth, the mode of thumb and index finger cooperation is easy to fix the device, will not swing, and is easy to operate. This operation concept based on the retro mechanical roller volume adjustment and the organic combination of modern touch sliding volume adjustment technology solves the shortcomings of the existing volume adjustment mode, is easy to operate, greatly reduces the probability of misoperation, and also highlights the sense of design and user experience.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bilateral touch staggered sliding volume adjustment method, characterized in that: Based on the fact that a left touch button array and a right touch button array are respectively arranged on both sides of the headset handle, and the left and right touch button arrays are connected to the sliding touch IC, the specific adjustment method includes the following contents: S1: Slide the touch IC to scan the left touch key array and the right touch key array of the headset to determine whether any key is pressed. If no key array is detected to be pressed, continue to detect; if a key array is detected to be pressed, go to step S2; S2: Determine whether the pressing of the left and right touch key arrays causes staggered sliding. If no staggered sliding occurs, continue to re-determine; If staggered sliding occurs, go to step S3; S3: Confirming the voltage output value by comparing the pressing and sliding of the left touch key array with the pressing and sliding of the right touch key array; S4: By accumulating the voltage output values ​​in S3, the DAC output volume is adjusted accordingly, completing the volume adjustment by bilateral touch staggered sliding.

2. The bilateral touch staggered sliding volume adjustment method according to claim 1, characterized in that: The following method is used to determine whether a key is pressed in step S1: (1) A sensing capacitor CS is formed between the left and right touch button arrays and the ground of the sliding touch IC they are in contact with. When the surrounding environment remains unchanged, the sensing capacitance value of the sensing capacitor CS is fixed. When a finger presses a button, a sensing capacitor CT is formed between the pressing finger and the ground. (2) The sensing capacitor CT is connected in parallel with the sensing capacitor CS. When a key is pressed, the capacitance value increases and its charging and discharging time also increases. The touch key IC can determine whether a touch key is pressed by detecting the change in the charging and discharging time.

3. The bilateral touch staggered sliding volume adjustment method according to claim 1, characterized in that: The staggered sliding in step S2 is that touch sliding occurs on both the left and right sides, and the sliding on the left and right sides is staggered sliding in opposite directions.

4. The bilateral touch staggered sliding volume adjustment method according to claim 3, characterized in that: The staggered sliding is the thumb touching upward and the index finger touching downward, which is defined as the direction of volume "+"; or, The staggered sliding is that the thumb touches and slides downwards, and the index finger touches and slides upwards at the same time. This operation method is defined as the direction of the volume "-".

5. The bilateral touch staggered sliding volume adjustment method according to claim 1, characterized in that: In step S3, the voltage output value is confirmed by comparing the left touch key array with the right touch key array; specifically, the number of pressed sliding keys in the left touch key array ≥ the number of pressed sliding keys in the right touch key array, and the voltage output value is determined by the left touch key array; If the number of pressed sliding keys of the left touch key array is ≤ the number of pressed sliding keys of the right touch key array, the voltage output value is determined by the right touch key array.

6. The bilateral touch staggered sliding volume adjustment method according to claim 1, characterized in that: The accumulation of the voltage output values ​​in step S3 in step S4 is specifically implemented in the following manner: The voltage output value is confirmed in step S3. When a valid sliding touch event occurs again, the output voltage U_O_SPK is accumulated. U_O_SPK+= U_O_SPK; If invalid, the MCU will maintain the original voltage output, the speaker will also maintain the original volume, and continue to determine whether a touch event occurs.

7. An earphone using the bilateral touch staggered sliding volume adjustment method according to any one of claims 1 to 6, characterized in that: It includes an earphone handle, an earphone cavity, an earphone top cover, a speaker, an internal control bracket, and a left touch button array, a right touch button array, a sliding touch IC, an MCU microprocessor, a MIC, an FPC button, and a charging column arranged on the internal control bracket; the earphone top cover is arranged on the earphone handle and the earphone cavity, the speaker is arranged in the earphone cavity, the left touch button array and the right touch button array are respectively arranged on both sides of the earphone handle; the left touch button array and the right touch button array are respectively connected to the sliding touch IC, and the sliding touch IC is connected to the MCU microprocessor; the MIC, FPC button and charging column are all connected to the MCU microprocessor.

8. The earphone using the bilateral touch staggered sliding volume adjustment method according to claim 7, characterized in that: The left touch key array and the right touch key array include a sliding touch key panel and a plurality of sliding touch keys arranged in sequence on the sliding touch key panel.

9. The earphone using the bilateral touch staggered sliding volume adjustment method according to claim 8, characterized in that: The electrical connection of the left touch key array is specifically that the sliding touch key is arranged on the sliding touch key plate, the sliding touch key is connected to the sliding touch IC through a parallel capacitor module, the sliding touch IC is connected to the MCU microprocessor, and the MCU microprocessor adjusts the volume of the speaker through a DAC power amplifier; The parallel capacitor module includes a stray inductive capacitor CS between a touch key and a sliding touch IC connected in parallel, and an inductive capacitor CT generated between a finger and the touch key when the touch key is pressed; the inductive capacitor CT is connected to the sliding touch key.

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