Patent Grant
12023596
This application is a U.S. National Phase application submitted under 35 U.S.C. § 371 of Patent Cooperation Treaty application serial no. PCT/CN2020/072280, filed Jan. 15, 2020, and entitled SMART MAGIC CUBE AND SENSOR USED THEREBY, SMART CENTER SHAFT, AND MONITORING METHOD, which application claims priority to Chinese patent application serial no. 201910594102.3, filed Jul. 3, 2019.
Patent Cooperation Treaty application serial no. PCT/CN2020/072280, published as WO 2021/000580 A1, and Chinese patent application serial no. CN 201910594102.3 are incorporated herein by reference.
The present disclosure relates to the technical field of magic cube, and more particularly, to a smart magic cube and a sensor used thereby, a smart center shaft, and a monitoring method.
The magic cube includes a center shaft and a plurality of magic blocks mounted on the center shaft. The center shaft includes a core and a number of connecting rods arranged at intervals on the core. Generally, the magic blocks include corner blocks, edge blocks, and center blocks (there is no center block in some low-order magic cubes). The plurality of magic blocks are spliced together to form a number of magic cube layers and a number of magic cube faces. For a high-order magic cube (e.g., a regular four-order magic cube, a regular five-order magic cube, or a three-order pyramid magic cube), the connecting rod is provided with at least two magic cube layers, and the at least two magic cube layers are rotatable around an axis of the connecting rod.
A smart magic cube is a new type of electronic magic cube that senses the rotation of the magic cube layers and the real-time state of the magic cube through a sensor, and processes, stores and transmits information such as the real-time state, the rotation and the like to an external device. A smart center shaft of the smart magic cube is the most core part of the smart magic cube. The smart center shaft can detect a rotation signal of each magic cube layer of the magic cube to obtain a real-time state of the whole magic cube, and can further communicate with an electronic device outside the magic cube in real time.
Conventional sensors can only be applied to low-order cubes, but for high-order cubes (e.g., regular four-order cubes, regular five-order cubes, or three-order pyramid cubes), there is no corresponding sensors to detect the rotation signals of the magic cube layers.
In view of the above, in order to solve the problem that the conventional sensor cannot detect the rotation signal of the high-order magic cube, it is necessary to provide a smart magic cube and a sensor used thereby, a smart center shaft, and a monitoring method. The sensor can detect rotation signals of “two magic cube layers” of a high-order magic cube in real time by using a structure of “one stator and two rotors”, so as to realize the intelligence of the high-order magic cube.
A sensor used by a smart magic cube is provided, the sensor including:
The above sensor can be applied to a smart magic cube. The stator is fixedly disposed so as not to rotate with the rotation of the magic cube layer. The first rotor can rotate with the first magic cube layer with respect to the stator, so that the sensor can output the rotation signal of the first magic cube layer according to the relative rotation between the first rotor and the stator. The second rotor can rotate with the second magic cube layer with respect to the stator, so that the sensor can output the rotation signal of the second magic cube layer according to the relative rotation between the second rotor and the stator. In this way, the sensor can detect the rotation signals of the “two magic cube layers” of the smart magic cube by using the structure of “one stator and two rotors”, thereby facilitating acquiring a state signal of the smart magic cube in a next step.
In an embodiment, the stator includes a first sensing plate, a second sensing plate, and a fixing seat, and the first sensing plate and the second sensing plate are fixedly mounted on both sides of the fixing seat, respectively. The first sensing plate is configured to sense a rotation signal of the first rotor, and the second sensing plate is configured to sense a rotation signal of the second rotor.
In an embodiment, the first sensing plate is provided with a first signal leading-out end on a side close to the fixing seat, the first sensing plate is provided with a first sensing surface on a side far from the fixing seat, and the first sensing surface is configured to sense the rotation signal of the first rotor; and/or
the second sensing plate is provided with a second signal leading-out end on a side close to the fixing seat, the second sensing plate is provided with a second sensing surface on a side far from the fixing seat, and the second sensing surface is configured to sense the rotation signal of the second rotor.
In an embodiment, the fixing seat is provided with a first mounting chamber for mounting and fixing the first sensing plate; and/or the fixing seat is provided with a second mounting chamber for mounting and fixing the second sensing plate.
In an embodiment, a side of the stator is provided with a first sensing portion configured to sense a rotation signal of the first rotor, and another side of the stator is provided with a second sensing portion configured to sense a rotation signal of the second rotor.
In an embodiment, the first sensing portion and/or the second sensing portion includes a wire connecting ring and a sensing ring, the sensing ring is configured to sense a rotation signal of the first rotor or the second rotor, and the wire connecting ring is provided with a wire connecting end configured to output the rotation signal; or the first sensing portion and/or the second sensing portion include a wire connecting layer and a sensing layer, the sensing layer is configured to sense a rotation signal of the first rotor or the second rotor, and the wire connecting layer is provided with a wire connecting end configured to output the rotation signal.
In an embodiment, the sensor further includes a movable seat, the movable seat is provided with an accommodating chamber on a side towards the stator. When the movable seat is configured to be connected to the first magic cube layer, the accommodating chamber is configured to fixedly mount the first rotor, or when the movable seat is configured to be connected to the second magic cube layer, the accommodating chamber is configured to fixedly mount the second rotor.
In an embodiment, the first rotor or the second rotor is an electrically conductive member, the electrically conductive member includes a first electrical contact pin and a second electrical contact pin, and correspondingly, the stator is provided with a common signal ring and an angle signal ring insulated from the common signal ring, the first electrical contact pin is configured to contact the common signal ring and the second electrical contact pin is configured to contact different positions of the angle signal ring; or
A smart center shaft is also provided, including a center shaft body, a main control module and the sensor described above. The center shaft body includes a core and a number of connecting rods disposed at intervals on the core, the stator is fixedly mounted on the center shaft body, the main control module is mounted in the core, and the main control module is electrically connected to the sensor.
When using the smart center shaft, the main control module is electrically connected to the sensor and obtains rotation signals of the first magic cube layer and the second magic cube layer through the sensor, so as to further calculate a state signal of the smart magic cube, thereby achieving the intelligence of the smart magic cube.
A smart magic cube is further provided, including a plurality of magic blocks and the smart center shaft described above. The plurality of magic blocks are mounted on the smart center shaft, and spliced together to form a number of magic cube layers, the magic cube layers includes first magic cube layer and second magic cube layer, each of the first magic cube layer and the second magic cube layer is rotatable around an axis of the connecting rod, the first rotor is configured to be rotatable in synchronous with the first magic cube layer, and the second rotor is configured to be rotatable in synchronous with the second magic cube layer.
In the above smart magic cube, the rotation of the first magic cube layer formed by the magic blocks can drive the first rotor to rotate synchronously, and then the main control module acquires the rotation signal of the first magic cube layer according to the relative rotation between the first rotor and the stator. The rotation of the second magic cube layer formed by the magic blocks can drive the second rotor to rotate synchronously, and then the main control module acquires the rotation signal of the second magic cube layer according to the relative rotation between the second rotor and the stator. In this way, the main control module calculates the state signal of the smart magic cube based on the rotation signals of the first magic cube layers and the second magic cube layers, thereby realizing the intelligence of the smart magic cube. The smart magic cube can further achieve networked online magic cube competitions.
In an embodiment, the connecting rod is rotatably mounted on the core with one end of the connecting rod being connected to the first magic cube layer and another end of the connecting rod being connected to the first rotor, and the stator is fixedly mounted on the core; or
In an embodiment, the smart magic cube is a three-order pyramid magic cube, the magic cube includes outer corner blocks, inner corner blocks and edge blocks, the connecting rods are fixedly arranged at the core, the outer corner blocks are spliced together to form the first magic cube layer, the first magic cube layer is rotatably mounted at an end of the connecting rod, the inner corner blocks and the edge blocks are spliced together to form the second magic cube layer, the second magic cube layer is rotatably sleeved on the connecting rod, the sensor is positioned in the inner corner blocks, the stator is fixedly sleeved on the connecting rod, the first rotor is connected to the outer corner block, and the second rotor is connected to an inner wall of the inner corner block.
A monitoring method for a smart magic cube is further provided, including:
In the above monitoring method for the smart magic cube, the sensor outputs the rotation signal of the first magic cube layer according to the relative rotation between the first rotor and the stator, and outputs the rotation signal of the second magic cube layer according to the relative rotation between the second rotor and the stator. The main control module calculates the real-time state of the smart magic cube according to the rotation signals of the first magic cube layer and the second magic cube layer, so that the intelligence of the magic cube is realized.
For a more complete understanding, reference is now made to the following description taken in conjunction with the accompanying Drawings in which:
In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully hereinafter with reference to the related accompanying drawings. Preferable embodiments of the present disclosure are presented in the accompanying drawings. However, the present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present disclosure more thorough.
It should be noted that when an element is referred to as being “fixed to” another element, it can be directly fixed to another element or indirectly connected to another element with a mediating element. When an element is considered to be “connected to” another element, it can be directly connected to another element or indirectly connected to another element with a mediating element. Instead, when an element is referred to as being “directly on” another element, there is no intermediate element. The terms “vertical”, “horizontal”, “left”, “right”, and the like are used herein for illustrative purposes only. The terms “first”, “second” and “third” in the present disclosure do not represent a specific number and order, but are only intended to distinguish names.
With combined reference to
The above sensor 10 can be applied to a smart magic cube. The stator 100 is fixedly disposed so as not to rotate with the rotation of the magic cube layer. The first rotor 210 can rotate with the first magic cube layer 41 with respect to the stator 100, so that the sensor 10 can output the rotation signal of the first magic cube layer 41 according to the relative rotation between the first rotor 210 and the stator 100. The second rotor 220 can rotate with the second magic cube layer 42 with respect to the stator 100, so that the sensor 10 can output the rotation signal of the second magic cube layer 42 according to the relative rotation between the second rotor 220 and the stator 100. In this way, the sensor 10 can detect the rotation signals of the “two magic cube layers” of the smart magic cube by using the structure of “one stator and two rotors”, thereby facilitating acquiring a state signal of the smart magic cube in a next step, and realizing the intelligence of the high-order magic cube.
That the stator 100 being configured to be fixedly disposed on the smart magic cube specifically refers to that, the stator 100 is fixedly mounted on a fixing structure of the smart magic cube. The fixing structure of the smart magic cube includes a core 31 and a structural member which is stationary relative to the core 31, and the fixing structure does not rotate in synchronous with the rotation of the magic cube layers.
The rotation signal of the first magic cube layer 41 refers to position information of the first magic cube layer 41 after rotation, or a rotation direction and a rotation angle of the first magic cube layer 41 (which can also be combined with the initial position to obtain the position information of the first magic cube layer 41 after rotation). Similarly, the rotation signal of the second magic cube layer 42 refers to position information of the second magic cube layer 42 after rotation, or a rotation direction and a rotation angle of the second magic cube layer 42.
There is a variety of specific configurations of the sensor 10.
For example, with combined reference to
Further, the angle signal ring 104 includes a number of sub-electrodes disposed circumferentially at intervals. The stator 100 further includes a resistor assembly. The common signal ring 103, the angle signal ring 104, and the resistor assembly cooperate to form several acquisition paths with different resistances. There is a one-to-one correspondence between the acquisition paths and the sub-electrodes. Each of the acquisition paths is connected with a resistor, a sub-electrode, and a common signal ring 103. The rotation of the electrically conductive member 230 turns on different sub-electrodes and common signal rings 103, thereby turning on different acquisition paths. The rotation signal of the first magic cube layer 41 is acquired according to the different resistances of the acquisition paths.
For example, the first rotor or the second rotor is formed by a plurality of magnets with magnetic field strengths different from each other. Accordingly, the stator is a magnet-sensitive device. The magnet-sensitive device may optionally be a Hall sensor, a magnet-sensitive diode, a magnet-sensitive transistor, a magnet-sensitive resistor, an application-specific integrated circuit, or the like. When the first magic cube layer or the second magic cube layer rotates and the magnet-sensitive device passes by different magnets, different voltages are generated. The rotation signal of the first magic cube layer or the second magic cube layer is acquired according to the different voltages.
For another example, the first rotor or the second rotor includes a light source and a baffle mounted below the light source, the baffle being provided with a notch. Accordingly, the stator is formed by a plurality of light receivers. When the baffle rotates with the first magic cube layer or the second magic cube layer, the notch rotates to be aligned with different light receivers, and the light receivers can receive light from the light source and acquire rotation signals of the first magic cube layer or the second magic cube layer.
Specifically, with continued reference to
The first rotor 210, the first sensing plate 110, the fixing seat 130, the second sensing plate 120, and the second rotor 220 are arranged sequentially. The first sensing plate 110 and the second sensing plate 120 are fixedly mounted by the fixing seat 130. The first sensing plate 110 and the second sensing plate 120 cooperate with corresponding rotors, respectively, so that the structure of the entire sensor 10 is more concise and orderly. Optionally, each of the first sensing plate 110 and the second sensing plate 120 may be a circuit board, and the circuit board may be wired according to actual requirements without leading out multiple signal wires, so that errors of wiring and assembly are reduced, thereby making the sensor 10 simple in circuit and simple and compact in structure, and also facilitating achieving mass production for the sensor 10.
Further, referring to
The first signal leading-out end and the second signal leading-out end 121 are respectively connected to a conducting wire 105, to transmit rotation signals of the first magic cube layer 41 and the second magic cube layer 42 to a main control module 21. Compared to the case where the first sensing surface 111 and the first signal leading-out end are positioned on a same side of the first sensing plate 110, in this embodiment, the first sensing surface 111 and the first signal leading-out end are positioned on different sides of the first sensing plate 110, so that the positions of the regions of both sides of the first sensing plate 110 are fully utilized, the volume of the first sensing plate 110 can be designed to be smaller, and accordingly, the first rotor 210 rotatably cooperates with the first sensing plate 110 and the entire sensor 10 can be designed to be smaller. Similarly, the volume of the second sensing plate 120 can be designed to be smaller.
In addition, since the first sensing plate 110 is compact, the circumference thereof is shortened, and the cooperating area between the first rotor 210 and the first sensing surface 111 is also reduced, thereby reducing damage to the first rotor 210 and easily reducing the weight and inertia of the first sensing plate 110. For example, when the first rotor 210 is an electrically conductive member 230 including the first electrical contact pin 231 and the second electrical contact pin 232, the first sensing surface 111 includes the common signal ring 103 and the angle signal ring 104 located at an outer edge of the common signal ring 103. Since the diameter of the first sensing surface 111 is reduced, the lengths of the rotation paths of the first electrical contact pin 231 and the second electrical contact pin 232 are reduced, and the wear amount of the first rotor 210 is greatly reduced, thereby improving the service life of the stator 100 and the first rotor 210, and improving the service life and reliability of the sensor 10. Similarly, the second sensing plate 120 being compact is conducive to reduce the wear amount of the second rotor 220.
Further, referring to
Specifically, with combined reference to
By converting the design of the accuracy of the relative position of the first rotor 210 or the second rotor 220 with respect to the stator 100 into the design of the accuracy of the relative position of the movable seat 240 with respect to the fixing seat 130, it is easier to design and ensure the accuracy, and is more technically easy to implement and control. Optionally, the first rotor 210, the second rotor 220, and the movable seat 240 are fixedly connected by means of clamping, bonding, or integrally molding.
Specifically, the movable seat 240 and the fixing seat 130 are sleeve-connected to each other. For example, referring to
The second embodiment differs from the first embodiment in that the specific configuration of the stator 100 is different.
In this embodiment, referring to
Specifically, the first sensing portion 140 and/or the second sensing portion 150 include a wire connecting ring 101 and a sensing ring 102. The sensing ring 102 is configured to sense a rotation signal of the first rotor 210 or the second rotor 220. The wire connecting ring 101 is provided with a wire connecting end configured to output the rotation signal. The wire connecting ring 101 can be electrically connected to the main control module 21 located in the core 31 via the conducting wire 105 so as to transmit rotation signals of the first magic cube layer 41 and the second magic cube layer 42 to the main control module 21.
With combined reference to
Optionally, the stator 100 may be constructed in the form of a PCB board to facilitate manufacturing. The wire connecting ring 101 is located at the inner side of the sensing ring 102, or the sensing ring 102 is located at the inner side of the wire connecting ring 101.
It can be understood that in other embodiments, the first sensing portion and/or the second sensing portion include a wire connecting layer and a sensing layer, the sensing layer is configured to sense a rotation signal of the first rotor or the second rotor, and the wire connecting layer is provided with a wire connecting end configured to output the rotation signal. The wire connecting layer and the sensing layer are distributed along the thickness direction of the stator, thereby reducing the surface areas of the first sensing portion and the second sensing portion, reducing the lengths of the rotation paths of the first rotor and the second rotor, and reducing the loss of the sensor.
Referring to
When using the smart center shaft, the main control module 21 is electrically connected to the sensors 10 and obtains rotation signals of the first magic cube layers 41 and the second magic cube layers 42 through the sensors 10, so as to further calculate state signals of the smart magic cube, thereby achieving the intelligence of the smart magic cube. The state signal is configured to characterize the relative positional relationship between the magic blocks in the smart magic cube.
In addition, the smart magic cube can further realize networked online magic cube competition, and the state of the smart magic cube can be synchronized to the electronic device of the user in real time, and further realize other interactive functions, such as a teaching video of making the magic cube, a synchronous competition in different places, and the like, through a peripheral device.
Specifically, with combined reference to
Further, referring to
The power supply module 22 is electrically connected to the main control module 21. The power supply module 22 is configured to provide power for the main control module 21.
The output module 23 is electrically connected to the main control module 21. The main control module 21 drives the output module 23 to generate a corresponding output mode according to the state signal of the smart magic cube, thereby increasing the interaction between the smart magic cube and the player. For example, the main control module 21 acquires, according to the state signal of the smart magic cube, what situation mode the smart magic cube is in, for example, in a start-up mode, a restoration completion mode, or an alarm mode of insufficient remaining time. The output module 23 may optionally be a light emitting element, a sound emitting element or a vibration element. The light emitting element expresses a specific situation mode with light. The vibration element may optionally be an electromechanical drive element, and the electromechanical drive element expresses a specific situation mode by vibration.
The movement sensing module is electrically connected to the main control module 21. The movement sensing module is configured to turn on or turn off the main control module 21, and to sense an overall movement amount and an overall flip angle of the smart magic cube. Optionally, the movement sensing module is an acceleration sensor, a vibration switch, or a touch switch. When the smart magic cube is picked up by the player, the movement sensing module turns on the main control module 21 so that the main control module 21 starts to operate. When the smart magic cube is put down by the player, the movement sensing module turns off the main control module 21 so that the main control module 21 enters the sleep state. When the movement sensing module is an acceleration sensor, a geomagnetic sensor or a gyroscope, the movement sensing module can sense the overall movement amount and the overall flip angle of the smart magic cube, and further sense the real-time spatial posture of the smart magic cube, so that the player can view the real-time spatial posture of the smart magic cube from one same viewing angle through the display.
Specifically, with combined reference to
The abutting block 243 is arranged obliquely, and a gap exists between the abutting block 243 and the rod structure of the connecting rod 32 to avoid friction between the abutting block 243 and the rod structure of the connecting rod 32, thereby increasing the service life of the sensor 10 and the connecting rod 32.
Specifically, referring to
Specifically, referring to
Specifically, the movable seat 240 is provided with a flange on a side near the stator 100, and the core 31 (see
With reference to
In the above smart magic cube, the rotation of the first magic cube layer 41 formed by magic blocks can drive the first rotor 210 to rotate synchronously, and then the main control module 21 acquires the rotation signal of the first magic cube layer 41 according to the relative rotation between the first rotor 210 and the stator 100. The rotation of the second magic cube layer 42 formed by magic blocks can drive the second rotor 220 to rotate synchronously, and then the main control module 21 acquires the rotation signal of the second magic cube layer 42 according to the relative rotation between the second rotor 220 and the stator 100. In this way, the main control module 21 calculates the state signals of the smart magic cube based on the rotation signals of the first magic cube layers 41 and the second magic cube layers 42, thereby realizing the intelligence of the smart magic cube. The smart magic cube can further achieve networked online magic cube competitions.
In an embodiment, with combined reference to
Specifically, one of the periphery of the movable seat 240 and the outer surface of the core 31 is provided with a flange, and the other one of the periphery of the movable seat 240 and the outer surface of the core 31 is provided with a sliding groove 311 slidably cooperates with the flange. In this way, during the rotation of the first rotor 210 or the second rotor 220, the sliding groove 311 can limit the movable seat 240, ensure the rotation of the first rotor 210 or the second rotor 220 to be stable, and improve the detection stability and accuracy of the sensor 10.
In another embodiment, with combined reference to
The connecting rod 32 is a hollow rod, and the inside of the hollow rod communicates with the inside of the core 31. The stator 100 is connected to a conducting wire 105, and the conducting wire 105 passes through the hollow rod and is electrically connected to the main control module 21 located at the core 31. In this way, the stator 100 transmits the rotation signals of the first magic cube layer 41 and the second magic cube layer 42 to the main control module 21 via the conducting wire 105.
Specifically, with combined reference to
In the three-order pyramid magic cube, the connecting rods 32 are fixedly arranged at the core 31. The outer corner blocks 410 form the first magic cube layers 41, and the first magic cube layers 41 are rotatably mounted on the ends of the connecting rods 32. The inner corner blocks 420 and the edge blocks 430 form the second magic cube layers 42, and the second magic cube layers 42 are rotatably sleeved on the connecting rods 32. The sensors 10 are positioned in the inner corner blocks 420, the stators 100 are fixedly sleeved on the connecting rods 32, the first rotors 210 are connected to the outer corner blocks 410, and the second rotors 220 are connected to the inner walls of the inner corner blocks 420. In this manner, the sensors 10 are positioned inside the inner corner blocks 420, thus can be prevented from being influenced by factors such as vibration and impact, thereby improving the operational reliability of the sensors 10.
In addition, in the three-order pyramid magic cube, the chamber of the inner corner block 420 is larger than the chamber of the outer corner block 410, thereby facilitating the installation of the sensors 10.
Referring to
The first rotor 210 can be connected to the outer corner block 410 in many ways. For example, with combined reference to
Similarly, the second rotor 210 can be connected to the inner wall of the inner corner block 410 in many ways. For example, one of the inner walls of the inner corner block and the second rotor is provided with an insertion hole, and the other one of the inner walls of the inner corner block and the second rotor is provided with an insert piece matching the insertion hole. Optionally, the second rotor is mounted in the movable seat, and the movable seat is provided with an insertion hole.
Referring to
At S100, referring to
At S200, the main control module 21 acquires a rotation signal of the first magic cube layer 41 according to relative rotation between the first rotor 210 and the stator 100.
At S300, the main control module 21 acquires a rotation signal of the second magic cube layer 42 according to the relative rotation between the second rotor 220 and the stator 100.
At S400, the main control module 21 calculates a real-time state of the smart magic cube according to the rotation signals of the first magic cube layer 41 and the second magic cube layer 42.
In the above monitoring method for the smart magic cube, the sensor 10 outputs the rotation signal of the first magic cube layer 41 according to the relative rotation between the first rotor 210 and the stator 100, and outputs the rotation signal of the second magic cube layer 42 according to the relative rotation between the second rotor 220 and the stator 100. The main control module 21 calculates the real-time state of the smart magic cube according to the rotation signals of the first magic cube layer 41 and the second magic cube layer 42, so that the intelligence of the magic cube is realized.
Optionally, the sensor used in the monitoring method is any of the sensors mentioned in the embodiments.
Each of the technical features of the above-mentioned embodiments may be combined arbitrarily. To simplify the description, not all the possible combinations of each of the technical features in the above embodiments are described. However, all of the combinations of these technical features should be considered as within the scope of this disclosure, as long as such combinations do not contradict with each other.
The above-mentioned embodiments are merely illustrative of several embodiments of the present disclosure, which are described specifically and in detail, but it cannot be understood to limit the scope of the present disclosure. It should be noted that, for those ordinary skilled in the art, several variations and improvements may be made without departing from the concept of the present disclosure, and all of which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be defined by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201910594102.3 | Jul 2019 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2020/072280 | 1/15/2020 | WO |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2021/000580 | 1/7/2021 | WO | A |
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| 106110651 | Nov 2017 | CN |
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| Number | Date | Country | |
|---|---|---|---|
| 20220339530 A1 | Oct 2022 | US |
