CN210743096U - Code scanning payment device suitable for multiple sound volumes - Google Patents
Code scanning payment device suitable for multiple sound volumes Download PDFInfo
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- CN210743096U CN210743096U CN201921368170.XU CN201921368170U CN210743096U CN 210743096 U CN210743096 U CN 210743096U CN 201921368170 U CN201921368170 U CN 201921368170U CN 210743096 U CN210743096 U CN 210743096U
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Abstract
The code scanning payment device comprises a body of the payment device, wherein the body consists of a code scanning window, a display screen, a sound playing structure and an automatic reset rotating shaft structure; an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm; the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment; the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole; the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable support, a cam device and a pressure accumulating device. The code scanning payment device adaptive to the multiple volumes can improve the efficiency, convenience and usability of scanning multiple code system images for merchants and consumers. Meanwhile, safety and applicability are provided for subsequent transaction payment.
Description
Technical Field
The utility model relates to a two-dimensional code is known and is read and photoelectric technology field particularly, relates to a sweep sign indicating number payment device of many volumes of adaptation.
Background
In the prior art, with the popularization of network payment, mobile payment becomes an enthusiasm payment mode for many citizens, particularly young people, no matter in supermarket counter payment, vegetable buying in a vegetable market, or ticket buying in a station and shopping in a market, people only need to take out a mobile phone and scan a two-dimensional code of a payee to complete code scanning payment, and the operation process is simple and convenient. However, because the two-dimensional code manufacturing threshold is low and is easy to steal, the risk of information tampering or counterfeiting exists, and if a lawbreaker cannot pay attention to the merchant while the merchant is, the two-dimensional code prepared in advance is pasted on the collection two-dimensional code of the merchant, so that the merchant can receive money at home and the like, and great property loss is caused.
In view of the above situation, the current general coping method is to require the customer to confirm face-to-face with the merchant before payment, and then to complete payment after confirmation is correct, and because the payment two-dimensional code is easy to be maliciously replaced, the payment after confirming the payee information face-to-face is beneficial to ensuring the payment safety, and avoiding unnecessary property loss. However, this payment method has the following disadvantages: the safety performance is not high; the convenience is not strong, and the accuracy is not high.
SUMMERY OF THE UTILITY MODEL
In order to solve technical problems in the prior art, the embodiment of the present disclosure provides a multi-volume adaptive code scanning payment device, which can improve efficiency, convenience and usability of scanning multiple code system images for merchants and consumers. Meanwhile, safety and applicability are provided for subsequent transaction payment.
In a first aspect, the disclosed embodiment provides a multi-volume code scanning payment device, which comprises a payment device body, wherein the payment device body is composed of a code scanning window, a display screen, a sound playing structure and an automatic reset rotating shaft structure; an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm; the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment; the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole; the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable bracket, a cam device and a pressure accumulating device; any side of the middle shaft is fixedly connected with the fixed base, the rotatable support can rotate around the middle shaft to place the body, any end of the cam device is fixedly connected with the rotatable support to set a stop angle, and any end of the pressure accumulating device is connected with the cam device to accumulate pressure energy and apply axial pressure of the middle shaft to the cam device.
In one embodiment, a light emitting module, a light receiving module, a light supplementing module, a receiving and amplifying module, a two-dimensional code reading module, a payment module and a controller are further arranged in the hollow structure; the light emitting module is configured to emit an optical signal in a preset direction to the code scanning window of the code scanning payment device according to the received driving signal; the light emitting module is electrically connected with the light receiving module, and the light receiving module is configured to receive reflected light of the optical signal reflected by the contact surface of the mobile electronic terminal and the code scanning window when a user uses the mobile electronic terminal to shield the code scanning window of the code scanning payment device, and convert the reflected light into reflected light; the light supplementing module is configured to support a light supplementing device included in the code scanning payment device body to irradiate light of a light source above the upper surface of the code scanning window in a diffuse reflection mode; the light receiving module is electrically connected with the receiving and amplifying module, and the receiving and amplifying module is configured to receive the reflected light signal and amplify the reflected light signal; the receiving and amplifying module is electrically connected with the two-dimension code reading module, and the two-dimension code reading module is configured to input a pre-constructed quality evaluation network model to a user by using the graphic characteristic parameters of the two-dimension code image information in the shielding area of the mobile electronic terminal to complete recognition; the two-dimensional code reading module is electrically connected with the payment module, and the payment module is configured to complete payment operation suitable for the code scanning payment device by selecting a preset communication channel; the controller is electrically connected with the light emitting module, the light receiving module, the light supplementing module, the receiving and amplifying module, the two-dimensional code reading module and the payment module, and the controller is configured to output a driving signal to the light emitting module and enhance the quality of the two-dimensional code image information according to the amplified reflected light signal.
In one embodiment, the display screen comprises a Liquid Crystal Display (LCD) screen or an Organic Light Emitting Diode (OLED) display screen.
In one embodiment, the method further comprises the following steps: the voice acquisition module and the voice adjustment module; the voice acquisition module is arranged on any side of the body and is configured to acquire a sound signal of the current environment and determine the volume value of the acquired sound signal; the voice adjusting module is arranged in the hollow structure, the voice adjusting module determines a scene with the highest current probability according to the environmental information placed in the body and the decibel value acquired by the voice acquisition module, if the probability of the scene is greater than a preset probability threshold value, the volume corresponding to the scene is adjusted in a self-adaptive mode according to the preset corresponding relation between the scene and the volume setting, and otherwise, manual volume adjusting operation is completed through the volume adjusting key.
In one embodiment, four peripheries of the outer edge of the code scanning window are provided with protrusions smoothly extending from the outer edge, or one side corresponding to the longer side of the four peripheries of the outer edge of the code scanning window is provided with protrusions smoothly extending from the outer edge, wherein the height of the protrusions is 1-2 cm.
In one embodiment, when the rotatable bracket is below a preset angle, the pressure released by the pressure storage device drives the cam device to drive the rotatable bracket to automatically reset to the stop angle; the stop angles are five angles of 0 degree, 30 degree, 45 degree, 60 degree and 90 degree, the stop angle of 0 degree is used for supporting the body to be horizontally placed, the stop angles of 30 degree, 45 degree and 60 degree are used for supporting the body to be obliquely placed, and the stop angle of 90 degree is used for supporting the body to be vertically placed.
In one embodiment, the light emitting module includes a plurality of light emitting units, polarization directions of the light emitting units are perpendicular to the transparent display screen glass of the body, and the light emitting units are used for generating optical signals in the direction perpendicular to the transparent display screen glass of the body under the control of driving signals.
In one embodiment, the light receiving module includes a plurality of light receiving units, and the light receiving units are configured to receive reflected light of the light signal reflected by a contact surface between the transparent display screen glass and the mobile electronic terminal used by the user when the transparent display screen glass is shielded by the user using the mobile electronic terminal, and convert the reflected light into a reflected light signal according to a vertical shielded space distance and a shielded area change.
In one embodiment, the method further comprises the following steps: and the lens is arranged on the upper surface of the hollow structure of the code scanning window and completely covers the opening.
In one embodiment, the opening is disposed at a center of the hollow structure of the code-scanning window.
The utility model provides a code payment device sweeps that adapts to many volumes, sweep code payment device includes payment device's body, the body is by sweeping yard window, display screen, sound broadcast structure and automatic reset pivot structure and constitute; an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm; the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment; the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole; the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable bracket, a cam device and a pressure accumulating device; any side of the middle shaft is fixedly connected with the fixed base, the rotatable support can rotate around the middle shaft to place the body, any end of the cam device is fixedly connected with the rotatable support to set a stop angle, and any end of the pressure accumulating device is connected with the cam device to accumulate pressure energy and apply axial pressure of the middle shaft to the cam device. The code scanning payment device adaptive to the multiple volumes can improve the efficiency, convenience and usability of scanning multiple code system images for merchants and consumers. Meanwhile, safety and applicability are provided for subsequent transaction payment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced as follows:
fig. 1 is a schematic structural diagram of a multi-volume code scanning payment device according to an embodiment of the present invention; and
fig. 2 is a schematic structural diagram of a hollow structure of a code scanning payment device adapted to multiple volumes according to an embodiment of the present invention.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and examples.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the disclosure, which may be combined or substituted for various embodiments, and this application is therefore intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be considered to include an embodiment that includes one or more of all other possible combinations of A, B, C, D, even though this embodiment may not be explicitly recited in text below.
In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following is through the embodiments, and with reference to the accompanying drawings, it is right that the specific implementation of a clear yard payment device that sweeps of many volumes of adaptation of the present invention is further described in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Fig. 1 is a schematic structural diagram of a multi-volume adaptive code scanning payment device in an embodiment.
Specifically, the code scanning payment device comprises a payment device body, wherein the body consists of a code scanning window, a display screen, a sound playing structure and an automatic reset rotating shaft structure; an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm; the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment; the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole; the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable bracket, a cam device and a pressure accumulating device; any side of the middle shaft is fixedly connected with the fixed base, the rotatable support can rotate around the middle shaft to place the body, any end of the cam device is fixedly connected with the rotatable support to set a stop angle, and any end of the pressure accumulating device is connected with the cam device to accumulate pressure energy and apply axial pressure of the middle shaft to the cam device.
As shown in fig. 2, a light emitting module, a light receiving module, a light supplementing module, a receiving and amplifying module, a two-dimensional code reading module, a payment module and a controller are further arranged in the hollow structure. Specifically, the light emitting module is configured to emit an optical signal in a preset direction to the code scanning window of the code scanning payment device according to the received driving signal; the light emitting module is electrically connected with the light receiving module, and the light receiving module is configured to receive reflected light of the optical signal reflected by the contact surface of the mobile electronic terminal and the code scanning window when a user uses the mobile electronic terminal to shield the code scanning window of the code scanning payment device, and convert the reflected light into reflected light; the light supplementing module is configured to support a light supplementing device included in the code scanning payment device body to irradiate light of a light source above the upper surface of the code scanning window in a diffuse reflection mode; the light receiving module is electrically connected with the receiving and amplifying module, and the receiving and amplifying module is configured to receive the reflected light signal and amplify the reflected light signal; the receiving and amplifying module is electrically connected with the two-dimension code reading module, and the two-dimension code reading module is configured to input a pre-constructed quality evaluation network model to a user by using the graphic characteristic parameters of the two-dimension code image information in the shielding area of the mobile electronic terminal to complete recognition; the two-dimensional code reading module is electrically connected with the payment module, and the payment module is configured to complete payment operation suitable for the code scanning payment device by selecting a preset communication channel; the controller is electrically connected with the light emitting module, the light receiving module, the light supplementing module, the receiving and amplifying module, the two-dimensional code reading module and the payment module, and the controller is configured to output a driving signal to the light emitting module and enhance the quality of the two-dimensional code image information according to the amplified reflected light signal. Therefore, code scanning efficiency of the code scanning payment device suitable for multiple sound volumes is improved.
It should be further noted that the display screen includes a liquid crystal display LCD screen or an organic light emitting diode OLED display screen. Therefore, the code scanning rapidity of the code scanning payment device suitable for multiple sound volumes is improved.
Furthermore, in one embodiment, as shown in fig. 2, the multi-volume adaptive code scanning payment device of the present disclosure further includes: the voice acquisition module and the voice adjustment module; the voice acquisition module is arranged on any side of the body and is configured to acquire a sound signal of the current environment and determine the volume value of the acquired sound signal; the voice adjusting module is arranged in the hollow structure, the voice adjusting module determines a scene with the highest current probability according to the environmental information placed in the body and the decibel value acquired by the voice acquisition module, if the probability of the scene is greater than a preset probability threshold value, the volume corresponding to the scene is adjusted in a self-adaptive mode according to the preset corresponding relation between the scene and the volume setting, and otherwise, manual volume adjusting operation is completed through the volume adjusting key. Therefore, the usability and the safety of the code scanning payment device suitable for multiple sound volumes are improved.
It should be noted that four peripheries of the outer edge of the code scanning window are provided with protrusions which extend smoothly from the outer edge, or one side of the four peripheries of the outer edge of the code scanning window corresponding to the longer side is provided with protrusions which extend smoothly from the outer edge, wherein the height of the protrusions is 1-2 cm. Therefore, class guidance and usability of the code scanning payment device suitable for multiple sound volumes are improved.
In addition, it should be noted that, when the rotatable bracket is below a preset angle, the pressure released by the pressure storage device drives the cam device to drive the rotatable bracket to automatically return to the stop angle; the stop angles are five angles of 0 degree, 30 degree, 45 degree, 60 degree and 90 degree, the stop angle of 0 degree is used for supporting the body to be horizontally placed, the stop angles of 30 degree, 45 degree and 60 degree are used for supporting the body to be obliquely placed, and the stop angle of 90 degree is used for supporting the body to be vertically placed. Therefore, flexibility and usability of the code scanning payment device suitable for multiple sound volumes are improved.
Furthermore, it should be noted that the light emitting module includes a plurality of light emitting units, a polarization direction of the light emitting units is perpendicular to the transparent display screen glass of the body, and the light emitting units are configured to generate optical signals along a direction perpendicular to the transparent display screen glass of the body under the control of the driving signal. In addition, the light receiving module comprises a plurality of light receiving units, and the light receiving units are used for receiving the reflected light reflected by the contact surface of the light signal and the transparent display screen glass when the user uses the mobile electronic terminal to shield the transparent display screen glass, and converting the reflected light into the reflected light signal according to the vertical shielded space distance and the shielding area change. Therefore, the rapidness, the high efficiency and the usability of the code scanning payment device which is suitable for multiple sound volumes to execute payment are improved.
Further, in an embodiment, as shown in fig. 2, the multi-volume adaptive code scanning payment device proposed by the present disclosure further includes: and the lens is arranged on the upper surface of the hollow structure of the code scanning window and completely covers the opening. The opening is disposed at a center of the hollow structure of the code-scanning window. Therefore, the usability and effectiveness of the code scanning payment device suitable for multiple sound volumes are improved.
The utility model provides a code payment device sweeps that adapts to many volumes, sweep code payment device includes payment device's body, the body is by sweeping yard window, display screen, sound broadcast structure and automatic reset pivot structure and constitute; an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm; the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment; the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole; the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable bracket, a cam device and a pressure accumulating device; any side of the middle shaft is fixedly connected with the fixed base, the rotatable support can rotate around the middle shaft to place the body, any end of the cam device is fixedly connected with the rotatable support to set a stop angle, and any end of the pressure accumulating device is connected with the cam device to accumulate pressure energy and apply axial pressure of the middle shaft to the cam device. The code scanning payment device adaptive to the multiple volumes can improve the efficiency, convenience and usability of scanning multiple code system images for merchants and consumers. Meanwhile, safety and applicability are provided for subsequent transaction payment.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
The foregoing describes the general principles of the present disclosure in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present disclosure are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present disclosure. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the disclosure is not intended to be limited to the specific details so described.
The block diagrams of devices, apparatuses, systems referred to in this disclosure are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
Also, as used herein, the use of "or" in a list of items beginning with "at least one" indicates a separate list, e.g., "A, B or at least one of C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the described example is preferred or better than other examples.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the disclosure to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A code scanning payment device adaptive to multiple sound volumes is characterized by comprising a payment device body, wherein the body consists of a code scanning window, a display screen, a sound playing structure and an automatic reset rotating shaft structure;
an opening is formed in the hollow structure of the code scanning window, a camera is arranged in the opening, and the vertical distance between the built-in camera and the outer edge of the code scanning window is more than or equal to 4 cm;
the display screen is positioned below the code scanning window and is configured for displaying the state and result information of code scanning payment;
the sound playing structure is positioned on the side of the body and consists of at least 1 volume adjusting key and a sound broadcasting hole;
the automatic reset rotating shaft structure comprises a fixed base, a middle shaft, a rotatable bracket, a cam device and a pressure accumulating device; any side of the middle shaft is fixedly connected with the fixed base, the rotatable support can rotate around the middle shaft to place the body, any end of the cam device is fixedly connected with the rotatable support to set a stop angle, and any end of the pressure accumulating device is connected with the cam device to accumulate pressure energy and apply axial pressure of the middle shaft to the cam device.
2. The multi-volume-adaptive code scanning payment device according to claim 1, wherein a light emitting module, a light receiving module, a light supplementing module, a receiving and amplifying module, a two-dimensional code reading module, a payment module and a controller are further arranged in the hollow structure;
the light emitting module is configured to emit an optical signal in a preset direction to the code scanning window of the code scanning payment device according to the received driving signal; the light emitting module is electrically connected with the light receiving module, and the light receiving module is configured to receive reflected light of the optical signal reflected by the contact surface of the mobile electronic terminal and the code scanning window when a user uses the mobile electronic terminal to shield the code scanning window of the code scanning payment device, and convert the reflected light into reflected light; the light supplementing module is configured to support a light supplementing device included in the code scanning payment device body to irradiate light of a light source above the upper surface of the code scanning window in a diffuse reflection mode; the light receiving module is electrically connected with the receiving and amplifying module, and the receiving and amplifying module is configured to receive the reflected light signal and amplify the reflected light signal; the receiving and amplifying module is electrically connected with the two-dimension code reading module, and the two-dimension code reading module is configured to input a pre-constructed quality evaluation network model to a user by using the graphic characteristic parameters of the two-dimension code image information in the shielding area of the mobile electronic terminal to complete recognition; the two-dimensional code reading module is electrically connected with the payment module, and the payment module is configured to complete payment operation suitable for the code scanning payment device by selecting a preset communication channel; the controller is electrically connected with the light emitting module, the light receiving module, the light supplementing module, the receiving and amplifying module, the two-dimensional code reading module and the payment module, and the controller is configured to output a driving signal to the light emitting module and enhance the quality of the two-dimensional code image information according to the amplified reflected light signal.
3. The multi-volume adaptive code scanning payment device as recited in claim 1, wherein the display screen comprises a Liquid Crystal Display (LCD) screen or an Organic Light Emitting Diode (OLED) display screen.
4. The multi-volume adaptive code-scanning payment device of claim 1, further comprising: the voice acquisition module and the voice adjustment module;
the voice acquisition module is arranged on any side of the body and is configured to acquire a sound signal of the current environment and determine the volume value of the acquired sound signal;
the voice adjusting module is arranged in the hollow structure, the voice adjusting module determines a scene with the highest current probability according to the environmental information placed in the body and the decibel value acquired by the voice acquisition module, if the probability of the scene is greater than a preset probability threshold value, the volume corresponding to the scene is adjusted in a self-adaptive mode according to the preset corresponding relation between the scene and the volume setting, and otherwise, manual volume adjusting operation is completed through the volume adjusting key.
5. The multi-volume code scanning payment device as claimed in claim 1, wherein four of the four peripheries of the outer edge of the code scanning window are provided with protrusions extending smoothly from the outer edge, or the longer side of the four peripheries of the outer edge of the code scanning window is provided with a protrusion extending smoothly from the outer edge, corresponding to the longer side, wherein the height of the protrusion is 1-2 cm.
6. The multi-volume code-scanning payment device as recited in claim 1, wherein when the rotatable bracket is below a preset angle, the pressure released by the pressure storage device drives the cam device to drive the rotatable bracket to automatically return to the stop angle; the stop angles are five angles of 0 degree, 30 degree, 45 degree, 60 degree and 90 degree, the stop angle of 0 degree is used for supporting the body to be horizontally placed, the stop angles of 30 degree, 45 degree and 60 degree are used for supporting the body to be obliquely placed, and the stop angle of 90 degree is used for supporting the body to be vertically placed.
7. The multi-volume-adaptive code-scanning payment device as claimed in claim 2, wherein the light emitting module comprises a plurality of light emitting units, the polarization direction of the light emitting units is perpendicular to the transparent display screen glass of the body, and the light emitting units are used for generating light signals along the direction perpendicular to the transparent display screen glass of the body under the control of the driving signal.
8. The multi-volume-adaptive code-scanning payment device according to claim 2, wherein the light receiving module comprises a plurality of light receiving units, and the light receiving units are configured to receive reflected light of the light signal reflected by a contact surface of the transparent display glass and the mobile electronic terminal used by the user when the transparent display glass is shielded by the user using the mobile electronic terminal, and convert the reflected light into a reflected light signal according to a vertical shielded space distance and a shielded area change.
9. The multi-volume adaptive code-scanning payment device of claim 1, further comprising: and the lens is arranged on the upper surface of the hollow structure of the code scanning window and completely covers the opening.
10. A multi-volume adaptable code-scanning payment device according to claim 1 or 9, wherein the opening is provided at the center of the hollow structure of the code-scanning window.
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| CN201921368170.XU CN210743096U (en) | 2019-08-21 | 2019-08-21 | Code scanning payment device suitable for multiple sound volumes |
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| CN201921368170.XU CN210743096U (en) | 2019-08-21 | 2019-08-21 | Code scanning payment device suitable for multiple sound volumes |
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