US20260151681A1
2026-06-04
19/289,064
2025-08-03
Smart Summary: A practice aid system helps people improve their basketball skills. It has a special device that works with sensors placed on the basketball hoop. An intelligent ball is designed to track its movement and location, and it lights up to provide feedback. There is also an intelligent shoe that can sense how the player moves and vibrates to give signals. Together, these tools make practicing basketball more effective and fun. 🚀 TL;DR
A practice aid system includes: a practice aid device; a hoop sensor system, including first and second pairs of an optical transmitter and receiver, which are mountable on a rim of a basketball hoop; an intelligent ball, including an inflatable ball body, a ball control unit, a ball light source, and a ball motion and location sensor; an intelligent shoe, including a shoe body, a shoe control unit, a shoe motion and location sensor, a vibrator, and a shoe light source.
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A63B69/0071 » CPC main
Training appliances or apparatus for special sports for basketball
A63B63/083 » CPC further
Targets or goals for ball games with horizontal opening for ball, e.g. for basketball for basketball
A63B2220/803 » CPC further
Measuring of physical parameters relating to sporting activity; Special sensors, transducers or devices therefor Motion sensors
A63B2220/836 » CPC further
Measuring of physical parameters relating to sporting activity; Special sensors, transducers or devices therefor characterised by the position of the sensor Sensors arranged on the body of the user
A63B2225/20 » CPC further
Miscellaneous features of sport apparatus, devices or equipment with means for remote communication, e.g. internet or the like
A63B69/00 IPC
Training appliances or apparatus for special sports
A43B3/44 » CPC further
Footwear characterised by the shape or the use with electrical or electronic arrangements with sensors, e.g. for detecting contact or position
A43B5/00 » CPC further
Footwear for sporting purposes
A63B43/06 » CPC further
Balls with special arrangements with illuminating devices ; with reflective surfaces
A63B63/08 IPC
Targets or goals for ball games with horizontal opening for ball, e.g. for basketball
This U.S. Non-Provisional Application is a Continuation-In-Part of U.S. Non-Provisional application Ser. No. 17/194,248, filed Mar. 6, 2021; which is a Continuation-In-Part of International Application No. PCT/US2020/40434, filed Jul. 1, 2020; which claims the benefit of U.S. Non-Provisional application Ser. No. 16/460,698, filed Jul. 2, 2019; all of which are hereby incorporated herein by reference in their entirety.
The present invention relates generally to the field of systems and methods for sports practice, and more particularly to methods and systems for providing corrective feedback and information about scores and gameplay.
In practice of game play of sports requiring handling of a ball, trainers, referees, and players may frequently wish to register, transmit or receive game information and corrective feedback, for example relating to registering scores and communicating penalties or timeout.
However, conventional methods of communication, such as oral communication or hand signals, may be disruptive to game play.
As such, considering the foregoing, it may be appreciated that there continues to be a need for novel and improved devices and methods for providing corrective feedback and information about scores and gameplay.
The foregoing needs are met, to a great extent, by the present invention, wherein aspects of this invention, enhancements are provided to the existing model for providing information about scores and gameplay.
In an aspect, a practice aid system can include:
There has thus been outlined, rather broadly, certain embodiments of the invention in order that the detailed description thereof herein may be better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional embodiments of the invention that will be described below and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in addition to those described and of being practiced and carried out in various ways. In addition, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
FIG. 1A is a schematic diagram illustrating a practice aid system, according to an embodiment of the invention.
FIG. 1B is a schematic diagram illustrating a practice aid system, according to an embodiment of the invention.
FIG. 2A is a perspective view of a part of a practice aid system, according to an embodiment of the invention.
FIG. 2B is a perspective view of a part of a practice aid system, according to an embodiment of the invention.
FIG. 3A is a schematic diagram illustrating a practice aid system, according to an embodiment of the invention.
FIG. 3B is a schematic diagram illustrating a practice aid system, according to an embodiment of the invention.
FIG. 4 is a schematic diagram of a practice aid device, according to an embodiment of the invention.
FIG. 5 is a perspective view of a practice aid device, according to an embodiment of the invention.
FIG. 6 is a schematic diagram of a practice aid server, according to an embodiment of the invention.
Before describing the invention in detail, it should be observed that the present invention resides primarily in a novel and non-obvious combination of elements and process steps. So as not to obscure the disclosure with details that will readily be apparent to those skilled in the art, certain conventional elements and steps have been presented with lesser detail, while the drawings and specification describe in greater detail other elements and steps pertinent to understanding the invention.
The following embodiments are not intended to define limits as to the structure or method of the invention, but only to provide exemplary constructions. The embodiments are permissive rather than mandatory and illustrative rather than exhaustive.
In the following, we describe the structure of an embodiment of a system for practice aid system 100 with reference to FIG. 1A, in such manner that like reference numerals refer to like components throughout; a convention that we shall employ for the remainder of this specification.
In an embodiment, as shown in FIGS. 1A, 1B, 2A, 2B, 3A and 3B a practice aid system 100 can include:
In related embodiments, the shoe control unit 344 can be configured to use motion and location information provided by the shoe motion and location sensor 349 to detect gameplay violations such as “offside” in soccer, entering a “red zone” or other designated game field area, or detecting that a player is deviating from a current deviation from play strategy, such as a “triangle offense; wherein any detected violation, deviation, or condition can be signaled to the player 122, players 124, or spectators using the shoe light source 346, the shoe vibrator 348, the ball light source 336, or a combination of these.
In a related embodiment, when the practice aid device 104 registers the score, the ball control unit 334 can be configured to control the ball light source 336 to emit the game information ball light signal 136 as a point scored ball light signal, in order to communicate the score. The point scored ball light signal can for example be a relatively fast pulsating green light, wherein for example each on-pulse (i.e. light on) has a duration of 0.1-0.3 seconds followed by an off-pulse (i.e. light off) of a duration of 0.05-0.1 seconds.
In another related embodiment, the game information vibration signal 347 can be selected from the group consisting of (i.e. can be one of the following options):
In yet another related embodiment, when the practice aid device 104 registers the score, the shoe control unit 344 can be configured to control the shoe light source 346 to emit the game information shoe light signal 136 as a point scored shoe light signal, in order to communicate the score. The point scored shoe light signal can for example be a relatively fast pulsating green light, wherein for example each on-pulse (i.e. light on) has a duration of 0.1-0.3 seconds followed by an off-pulse (i.e. light off) of a duration of 0.05-0.1 seconds. The point scored shoe light signal can be activated on both shoes of scoring player 122 or can alternatively be activated on both shoes of all players 122 of scoring team, or on all players 122 from both teams. The point scored shoe light signal(s) and point scored ball light signal can provide additional game excitement and can also be used to inform spectators 124 of a score when the spectators 124 may not be able to see the scoring clearly from a distance.
In yet a related embodiment, as shown in FIG. 3B, the hoop sensor system 110 can further include a hoop control unit 314, which can be connected to the first and second optical transmitters 214, 224, the first and second optical receivers 216, 226, an the at least one programmable light 232, such that the hoop control unit 314 is configured to control functions of the first and second optical transmitters 214, 224, the first and second optical receivers 216, 226, and the at least one programmable light 232; wherein the in communication with the practice aid server 302, or alternatively in communication with the practice aid device 104
In a related embodiment, the shoe control unit 344 can be configured to calibrate a position/location of the intelligent shoe 140, by successively positioning the intelligent shoe 140 in selected corners of a rectangular playing field 160, wherein the selected corners comprise at least three corners 161, 162, 163 or four corners 161, 162, 163, 164 of the rectangular playing field 160, such as a basketball court 160, such that the position/location of the intelligent shoe 140 provided by the shoe motion and location sensor 349, can be calibrated in comparison with predetermined locations (i.e., known locations) of the three corners 161, 162, 163 or the four corners 161, 162, 163, 164.
In another related embodiment, the practice aid device 104 can be configured to transmit the registered score 152 to an electronic scoreboard 150, which can include a conventional scoreboard (such as used in a playing court with spectators), a television, a tablet device, or some other form of display device. Alternatively, as shown in FIG. 3B, the practice aid server 302 can be configured to store and update the registered score 152, such that the practice aid server 302 communicates with the electronic scoreboard 150 for display of the registered score 152 on the electronic scoreboard 150.
In other related embodiments, the first and second sensor pairs 212, 222 can be similar in design to conventional garage sensors and can for example employ an optical transmitter 214, 224, which can be an infrared or laser emitter.
In other related embodiments, the inflatable ball body 332 can be at least semi-transparent, including transparent or translucent, wherein the ball light source 336, is mounted inside the inflatable ball body 332, such that light emitted from the ball light source 336 is externally visible.
In another related embodiment, as shown in FIGS. 2B, 3A, and 3B, the hoop sensor system 110 can further include:
In another related embodiment, as shown in FIGS. 2B, 3A, and 3B, the hoop sensor system 110 can further include:
In a related embodiment, as shown in FIG. 4, a practice aid device 104 can include:
In a related embodiment, as shown in FIG. 3B, a practice aid system 100 can further include a practice aid server 302, which is connected to the hoop sensor system 110, the intelligent ball 130, and the intelligent shoe 140, such that the practice aid device 104 controls functions of the practice aid system 100 in communication via the practice aid server 302.
In another related embodiment, as shown in FIG. 3B, a practice aid device 104 can be configured for use by a coach 324 or manager 324 to receive real-time data and provide instructions in communication with the practice aid system 100, for example for the purpose of training or evaluation.
In yet another related embodiment, as shown in FIG. 3B, a practice aid device 104 can be configured for use by a referee 326 or umpire 326 to receive real-time data and provide gameplay decisions and instructions in communication with the practice aid system 100.
In related embodiments, the practice aid system 100 can be used for basketball and other sports using a ball, such as for example baseball, American football, tennis, soccer, etc.
In a related embodiment, FIG. 5 shows a user 122 operating a practice aid device 104 via interaction with the screen 408, which is configured as a touch screen.
In a related embodiment, as shown in FIG. 6, a practice aid server 302 can include:
In a related embodiment, in a performance scenario during use of the practice aid system 100, wherein a player 122 is dribbling on the court and takes a shot at the basketball hoop, actions of the practice aid system 100 can include:
Thus, in related embodiments, a practice aid intelligent shoe 140, can include:
In various related embodiments, the practice aid intelligent shoe 140 can include the following modes and capabilities:
In an embodiment, the practice aid system 100 can include a plurality of practice aid devices 104 that works independently or in concert to bring forth a desired athletic outcome by computations of practice aid devices 104 and gathered data (external/internal).
In another embodiment, a practice aid glove can aid in various sports, such as, basketball, American football, baseball, golf and any other sport play or hand and finger dominant activity that can be trained and aided via muscle memory formed by practice aid glove repetitional training of hand and finger positioning.
In various related embodiments, the practice aid intelligent shoe 140 can help sports execution with the substitution of players via vibration, light signals, or other signaling function(s). The practice aid intelligent shoe 140 Location function can help locate players for practice on field/court and for man counts. The practice aid intelligent shoe 140 can determine the height of a jump or the speed traveled during a giving time period. For example, tracking field runners 122 can practice with the practice aid intelligent shoe 140 and the individual data can be immediately accessible for review via the practice aid intelligent shoe 140, allowing the athlete to track their athletic developments in real time.
In related embodiments, the practice aid hoop sensor system 110 can:
It shall be understood that an executing instance of an embodiment of the practice aid system 100, as shown in FIGS. 1A and 3A, can include a plurality of practice aid devices 104, which are each tied to (and worn by) a corresponding user 122 in a plurality of users 122, for example as shown in FIG. 3B.
An executing instance of an embodiment of the system for practice aid system 100, as shown in FIGS. 3A and 3B, can similarly include a plurality of practice aid servers 302.
FIGS. 1A, 1B, 2A, 2B, 3A, 3B, 4, 5, and 6 are block diagrams and flowcharts, methods, devices, systems, apparatuses, and computer program products according to various embodiments of the present invention. It shall be understood that each block or step of the block diagram, flowchart and control flow illustrations, and combinations of blocks in the block diagram, flowchart and control flow illustrations, can be implemented by computer program instructions or other means. Although computer program instructions are discussed, an apparatus or system according to the present invention can include other means, such as hardware or some combination of hardware and software, including one or more processors or controllers, for performing the disclosed functions.
In this regard, FIGS. 1A, 1B, 2A, 2B, 3A, 3B, 4, 5, and 6 depict the computer devices of various embodiments, each containing several of the key components of a general-purpose computer by which an embodiment of the present invention may be implemented. Those of ordinary skill in the art will appreciate that a computer can include many components. However, it is not necessary that all of these generally conventional components be shown in order to disclose an illustrative embodiment for practicing the invention. The general-purpose computer can include a processing unit and a system memory, which may include various forms of non-transitory storage media such as random access memory (RAM) and read-only memory (ROM). The computer also may include nonvolatile storage memory, such as a hard disk drive, where additional data can be stored.
FIG. 3B shows a depiction of an embodiment of the practice aid system 300, including a practice aid server 302, and the practice aid device 104. In this relation, a server shall be understood to represent a general computing capability that can be physically manifested as one, two, or a plurality of individual physical computing devices, located at one or several physical locations. A server can for example be manifested as a shared computational use of one single desktop computer, a dedicated server, a cluster of rack-mounted physical servers, a datacenter, or network of datacenters, each such datacenter containing a plurality of physical servers, or a computing cloud, such as AMAZON EC2™ or MICROSOFT AZURE™.
It shall be understood that the above-mentioned components of practice aid server 302 and the practice aid device 104 are to be interpreted in the most general manner.
For example, the processors 402, 602 can each respectively include a single physical microprocessor or microcontroller, a cluster of processors, a datacenter or a cluster of datacenters, a computing cloud service, and the like.
In a further example, the non-transitory memory 404 and the non-transitory memory 604 can each respectively include various forms of non-transitory storage media, including random access memory and other forms of dynamic storage, and hard disks, hard disk clusters, cloud storage services, and other forms of long-term storage. Similarly, the input/output 406 and the input/output 606 can each respectively include a plurality of well-known input/output devices, such as screens, keyboards, pointing devices, motion trackers, communication ports, and so forth.
Furthermore, it shall be understood that the practice aid server 302 and the practice aid device 104 can each respectively include a number of other components that are well known in the art of general computer devices, and therefore shall not be further described herein. This can include system access to common functions and hardware, such as for example via operating system layers such as WINDOWS™, LINUX™, and similar operating system software, but can also include configurations wherein application services are executing directly on server hardware or via a hardware abstraction layer other than a complete operating system.
An embodiment of the present invention can also include one or more input or output components, such as a mouse, keyboard, monitor, and the like. A display can be provided for viewing text and graphical data, as well as a user interface to allow a user to request specific operations. Furthermore, an embodiment of the present invention may be connected to one or more remote computers via a network interface. The connection may be over a local area network (LAN) wide area network (WAN), and can include all of the necessary circuitry for such a connection.
In related embodiments, the practice aid device 104 can communicate with the practice aid server 302, or directly with the hoop sensor system 110, the intelligent ball 130, the intelligent shoe 140, and/or the electronic scoreboard 150 over a network 306, which can include the general Internet, a Wide Area Network or a Local Area Network, or another form of communication network, transmitted on at least one or a combination of wired (such as Ethernet) or wireless connections. Wireless networks can for example include Wi-Fi, BLUETOOTH™, ZIGBEE™, and NFC. The communication can be transferred via a secure, encrypted communication protocol. Alternatively, as shown in FIG. 3B, the practice aid server 302 can communicate directly with the hoop sensor system 110, intelligent ball 130, the intelligent shoe 140, and/or the electronic scoreboard 150 over a network 306, which can include the general Internet, a Wide Area Network or a Local Area Network, or another form of communication network, transmitted on at least one or a combination of wired or wireless connections.
Typically, computer program instructions may be loaded onto the computer or other general-purpose programmable machine to produce a specialized machine, such that the instructions that execute on the computer or other programmable machine create means for implementing the functions specified in the block diagrams, schematic diagrams or flowcharts. Such computer program instructions may also be stored in a computer-readable medium that when loaded into a computer or other programmable machine can direct the machine to function in a particular manner, such that the instructions stored in the computer-readable medium produce an article of manufacture including instruction means that implement the function specified in the block diagrams, schematic diagrams or flowcharts.
In addition, the computer program instructions may be loaded into a computer or other programmable machine to cause a series of operational steps to be performed by the computer or other programmable machine to produce a computer-implemented process, such that the instructions that execute on the computer or other programmable machine provide steps for implementing the functions specified in the block diagram, schematic diagram, flowchart block or step.
Accordingly, blocks or steps of the block diagram, flowchart or control flow illustrations support combinations of means for performing the specified functions, combinations of steps for performing the specified functions and program instruction means for performing the specified functions. It will also be understood that each block or step of the block diagrams, schematic diagrams or flowcharts, as well as combinations of blocks or steps, can be implemented by special purpose hardware-based computer systems, or combinations of special purpose hardware and computer instructions, that perform the specified functions or steps.
As an example, provided for purposes of illustration only, a data input software tool of a search engine application can be a representative means for receiving a query including one or more search terms. Similar software tools of applications, or implementations of embodiments of the present invention, can be means for performing the specified functions. For example, an embodiment of the present invention may include computer software for interfacing a processing element with a user-controlled input device, such as a mouse, keyboard, touch screen display, scanner, or the like. Similarly, an output of an embodiment of the present invention may include, for example, a combination of display software, video card hardware, and display hardware. A processing element may include, for example, a controller or microprocessor, such as a central processing unit (CPU), arithmetic logic unit (ALU), or control unit.
Here has thus been described a multitude of embodiments of the practice aid system 100, the practice aid device 104, the practice aid server 302, and methods related thereto, which can be employed in numerous modes of usage.
The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention, which fall within the true spirit and scope of the invention.
For example, alternative embodiments can reconfigure or combine the components of the practice aid server 302, and the practice aid device 104. The components of the practice aid server 302 can be distributed over a plurality of physical, logical, or virtual servers. Parts or all of the components of the practice aid device 104 can be configured to operate in the practice aid server 302, whereby the practice aid device 104 for example can function as a thin client, performing only graphical user interface presentation and input/output functions. Alternatively, parts or all of the components of the practice aid server 302 can be configured to operate in the practice aid device 104, as shown in FIG. 3A.
Many such alternative configurations are readily apparent and should be considered fully included in this specification and the claims appended hereto. Accordingly, since numerous modifications and variations will readily occur to those skilled in the art, the invention is not limited to the exact construction and operation illustrated and described, and thus, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
1. A practice aid system, comprising:
a practice aid device, which is configured to be worn by a user;
wherein the practice aid device is configured to collect and process game information during a sports game that the user is participating in.
2. The practice aid system of claim 1, wherein the practice aid device is configured to be mounted on a forearm of the user.
3. The practice aid system of claim 1, further comprising:
a hoop sensor system, comprising:
a first sensor pair, comprising:
a first optical transmitter, which is configured to be mounted on a first side of a hoop rim of a basketball hoop; and
a first optical receiver, which is configured to be mounted on a second side of the hoop rim, such that the first and second sides are first opposing sides of the hoop rim,
such that the first optical receiver receives a first optical emission from the first optical transmitter when there is no blockage of a first opening between the first optical transmitter and the first optical receiver, and
such that the first optical receiver is configured to detect a first blockage of the first opening when the first optical emission is not received; and
a second sensor pair, comprising:
a second optical transmitter, which is configured to be mounted on a third side of the hoop rim; and
a second optical receiver, which is configured to be mounted on a fourth side of the hoop rim, such that the third and fourth sides are second opposing sides of the hoop rim,
such that the second optical receiver receives a second optical emission from the second optical transmitter when there is no blockage of a second opening between the second optical transmitter and the second optical receiver, and
such that the second optical receiver detects a second blockage of the second opening when the second optical emission is not received;
wherein the practice aid device is configured to register a score when the first sensor pair and the second sensor pair detect simultaneous first and second blockages of respectively the first and second openings;
wherein the second sensor pair is configured to be perpendicularly mounted on the hoop rim relative to the first sensor pair.
4. The practice aid system of claim 3, wherein the hoop sensor system further comprises:
a mounting structure;
wherein the first optical transmitter is mounted on a first side of the mounting structure;
wherein the first optical receiver is mounted on a second side of the mounting structure;
wherein the second optical transmitter is mounted on a third side of the mounting structure; and
wherein the second optical receiver is mounted on a fourth side of the mounting structure.
5. The practice aid system of claim 4, wherein the mounting structure is a ring-shaped mounting ring.
6. The practice aid system of claim 4, wherein the second sensor pair is perpendicularly mounted on the mounting structure relative to the first sensor pair.
7. The practice aid system of claim 4, wherein the practice aid system further comprises the basketball hoop, which comprises the hoop rim;
wherein the mounting structure is connected to the hoop rim, such that the mounting structure is mounted under the hoop rim.
8. The practice aid system of claim 3, further comprising:
an intelligent ball, comprising:
an inflatable ball body;
a ball control unit; and
a ball light source, such that the ball light source is mounted to the inflatable ball body;
wherein the ball control unit is connected to the ball light source such that the ball control unit is configured to control switching on and switching off the ball light source, in communication with the practice aid device, such that the ball light source is configured to emit a game information ball light signal, which provides game information to players and spectators.
9. The practice aid system of claim 8, wherein when the practice aid device registers the score, the ball control unit is configured to control the ball light source to emit the game information ball light signal as a point scored ball light signal, in order to communicate the score.
10. The practice aid system of claim 8, wherein the ball light source is mounted inside the inflatable ball body, and wherein the inflatable ball body is at least semi-transparent.
11. The practice aid system of claim 8, wherein the ball light source comprises a light emitting diode assembly.
12. The practice aid system of claim 1, further comprising:
an intelligent shoe, comprising:
a shoe body;
a shoe control unit, which is mounted to the shoe body; and
a shoe motion and location sensor, which is mounted to the shoe body;
wherein the shoe control unit is connected to the shoe motion and location sensor, such that the shoe control unit is configured to receive motion and location information from the shoe motion and location sensor, in communication with the practice aid device.
13. The practice aid system of claim 12, wherein the shoe control unit is configured to calibrate a position of the intelligent shoe, by successively positioning the intelligent shoe in selected corners of a playing field, wherein the selected corners comprise at least three corners of the playing field, such that the position of the intelligent shoe is calibrated in comparison with predetermined locations of the selected corners.
14. The practice aid system of claim 13, wherein the selected corners comprise four corners of the playing field.
15. The practice aid system of claim 12, wherein the intelligent shoe further comprises:
a vibrator, which is mounted to the shoe body;
wherein the shoe control unit is connected to the vibrator, such that the shoe control unit is configured to control switching on and switching off the vibrator, in communication with the practice aid device, such that the vibrator is configured to emit a game information vibration signal, which is received by a player who is wearing the intelligent shoe, wherein the game information vibration signal provides game information to the player;
wherein the shoe control unit is configured to start a timer when the shoe motion and location sensor indicates the player has entered a defensive key zone, such that the timer stops when the player has left the defensive key zone, such that the vibrator is configured to emit a warning vibration signal when the timer reaches a predetermined warning threshold, to warn the player of a potential three second key zone violation.
16. The practice aid system of claim 15, wherein the predetermined warning threshold is two seconds.
17. The practice aid system of claim 1, further comprising:
an intelligent shoe, comprising:
a shoe body;
a shoe control unit, which is mounted to the shoe body; and
a vibrator, which is mounted to the shoe body;
wherein the shoe control unit is connected to the vibrator, such that the shoe control unit is configured to control switching on and switching off the vibrator, in communication with the practice aid device, such that the vibrator is configured to emit a game information vibration signal, which is received by a player who is wearing the intelligent shoe, wherein the game information vibration signal provides game information to the player.
18. The practice aid system of claim 17, wherein the game information vibration signal is selected from the group consisting of:
a) a defensive mode game information vibration signal, which is a first predetermined vibration signal to indicate to the player that the player should assume a defensive playing style; and
b) an offensive mode game information vibration signal, which is a second predetermined vibration signal to indicate to the player that the player should assume an offensive playing style.
19. The practice aid system of claim 3, further comprising:
an intelligent shoe, comprising:
a shoe body;
a shoe control unit, which is mounted to the shoe body; and
a shoe light source, which is mounted to the shoe body;
wherein the shoe control unit is connected to the shoe light source, such that the shoe control unit is configured to control switching on and switching off the shoe light source, in communication with the practice aid device, such that the shoe light source is configured to emit a game information shoe light signal, which provides game information to players and spectators.
20. The practice aid system of claim 19, wherein when the practice aid device registers the score, the shoe control unit is configured to control the shoe light source to emit the game information shoe light signal as a point scored shoe light signal, in order to communicate the score.