US20050239583A1 - Method for measuring parameters and a striking device - Google Patents
Method for measuring parameters and a striking device Download PDFInfo
- Publication number
- US20050239583A1 US20050239583A1 US10/506,718 US50671805A US2005239583A1 US 20050239583 A1 US20050239583 A1 US 20050239583A1 US 50671805 A US50671805 A US 50671805A US 2005239583 A1 US2005239583 A1 US 2005239583A1
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- striking device
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001133 acceleration Effects 0.000 claims abstract description 31
- 230000006870 function Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims 3
- 235000009854 Cucurbita moschata Nutrition 0.000 claims 1
- 240000001980 Cucurbita pepo Species 0.000 claims 1
- 235000009852 Cucurbita pepo Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 claims 1
- 235000020354 squash Nutrition 0.000 claims 1
- 238000012549 training Methods 0.000 description 5
- 210000000707 wrist Anatomy 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/002—Resonance frequency related characteristics
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/42—Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/38—Training appliances or apparatus for special sports for tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0056—Tracking a path or terminating locations for statistical or strategic analysis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/24—Ice hockey
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/17—Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/30—Speed
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/40—Acceleration
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/51—Force
- A63B2220/53—Force of an impact, e.g. blow or punch
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/62—Time or time measurement used for time reference, time stamp, master time or clock signal
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/64—Frequency, e.g. of vibration oscillation
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
- A63B2220/833—Sensors arranged on the exercise apparatus or sports implement
Definitions
- the invention relates to a method for measuring and computing parameters upon striking an object to be moved, such as a ball, at a hitting location on a striking surface of a striking device, such as a tennis racquet, in which at least one sensor system comprising at least one sensor, which system is attached to the striking device, delivers signals to a computer, which computes at least the velocity of the object being moved and/or the velocity of the striking device from said signals, which velocity is presented on one or more presentation devices.
- U.S. Pat. No. 6,134,965 describes an apparatus for deriving a parameter, in particular the velocity at which a ball is being struck, i.e. the sum of the velocity of the ball and the velocity (in opposite direction) of the racquet, from the vibrations of the racquet strings.
- German Patentschrift No 34 36 218 describes an apparatus for counting the number of strokes with a striking device, which apparatus comprises a contact foil that is present in or near the striking surface of said striking device.
- European patent application No 0 407 631 discloses a method for testing that tennis racquet.
- the object of the method according to the invention is to improve the method referred to in the introduction, and to that end it comprises the features defined in claim 1 or claim 2 .
- the invention makes it possible to determine the velocity of the striking device itself during a swinging movement and/or at the time of an impact by measuring the acceleration, in particular the acceleration in centripetal direction.
- an enumeration both the overall number of strokes and of the number of good and bad strokes that have been played is given when using the method according to the invention for the purpose of improving the player's performance, to which end this preferred method is characterised in that the sensors measure the acceleration of the swing of the striking device and register whether an impact with the ball takes place on the front side or on the rear side of the striking device.
- the invention furthermore comprises a striking device, such as a racquet, a bat or a stick in accordance with claims 6 - 8 .
- the accelerations experienced by the sensor are fed to a computer in the form of as many signals during each of the successive strokes, which computer is connected to a presentation device, on which the changes in the acceleration during the swing and upon impact during said successive strokes can be displayed.
- a computer in the form of as many signals during each of the successive strokes, which computer is connected to a presentation device, on which the changes in the acceleration during the swing and upon impact during said successive strokes can be displayed.
- the invention makes it possible, depending on the specific embodiment, to take into account a number of important factors, such as velocity and acceleration of the striking device, the spatial direction of the striking device as a function of the direction in which the object to be moved hits the striking surface of the striking device and the angle of the striking device relative to the hitting location.
- FIG. 1 shows a tennis racquet in the forehand position, which racquet comprises a housing formed on or in the handle, which housing accommodates a sensor system.
- FIG. 2 is a schematic representation of the electronic processing of the received signals.
- FIG. 3 is a graphic representation of centripetal forces and the impacts of the ball on the racquet.
- FIG. 4 is a graphic representation which shows the vibrations on the racquet in the case of a “good” hitting location and in the case of a “bad” hitting location.
- the tennis racquet 1 comprises a striking surface 2 consisting of strings, whose front side or rear side can be used for hitting a ball, the choice between the two sides being determined by the game position. To that end, the racquet undergoes a swinging movement W, in this case drawn in the position in which the front side of the striking surface is used, during which movement the racquet experiences a centripetal force.
- the magnitudes of the accelerations that occur in the X-, Y- and Z-directions are measured by a sensor system 3 , which is mounted in or near the handle of the tennis racquet 1 or, preferably, in or near the tip of the tennis racquet 1 .
- the sensor system comprises one or more piezoelectrical accelerometers and delivers corresponding signals to a computer, for example a microcomputer accommodated in the handle, which is connected, either by means of a signal conductor or wirelessly, to a remote presentation device (not shown), such as a display screen, an X-Y writer or the like, or to a mini screen or the like mounted on the racquet.
- a computer for example a microcomputer accommodated in the handle, which is connected, either by means of a signal conductor or wirelessly, to a remote presentation device (not shown), such as a display screen, an X-Y writer or the like, or to a mini screen or the like mounted on the racquet.
- the acceleration in particular in the “Z”-direction can reach a value of 2000 G, whereas only small accelerations (about 2 G) occur for registering the hitting locations or position changes from forehand to backhand, it is preferable to use separate sensors, whose degree of sensitivity is geared to accommodate said extreme differences in the acceleration values.
- FIG. 2 schematically indicates the electronic path along which the signals from the three acceleration sensors 3 x , 3 y , 3 z are supplied, via signal amplifiers 4 and an analog/digital converter 5 , to a microprocessor 6 , which is connected to a storage/memory 7 on the one hand and to a presentation device, such as a PC 8 , on the other hand.
- Control buttons 9 can be used for making a selection from the various images that are to be displayed, for example after a match or after a series of strokes.
- the signals being received are converted in the computer, so that the following information can be provided on the presentation device:
- This information enables the player or the trainer to get an impression of the quality of the player's game by analysing a large number of different technical aspects and furthermore to find out which techniques of the game require adaptation or improvement.
- the forces along the three axes Cx, Cy, Cz as well as the impacts B are schematically and graphically represented in FIG. 3 , which clearly shows the magnitudes of the various accelerations associated with said successive impacts.
- the rotational speed of the tennis racquet 1 about an effective centre of rotation, which is e.g. located between the player's wrist and elbow, can be determined on the basis of the centripetal force Cy.
- FIG. 4 clearly shows the difference between a stroke that generates strong vibrations, which occurs when the ball hits a striking surface at an incorrect position thereon, and a stroke that generates relatively mild vibrations, which occurs when the ball hits the striking surface at a correct position thereon.
- the timing data that can be obtained by means of the apparatus according to the invention, it is possible to combine the timing data with the acceleration data.
- All kinds of information/conclusions can be derived on the basis of heuristics by measuring the interval of time between successive strokes. Assuming, for example, that the player is serving and the ball is out, it is practically certain that the player will hit a new service within 3 to 5 seconds, without other types of strokes being hit in the meantime.
- all kinds of conclusions can be drawn on the basis of knowledge of the game (the rules), the types of strokes and heuristics.
- the computer give the player directions (so-called direct teaching), e.g. by means of an acoustic signal, during a game or during a training session.
- the methods according to the invention enable the sporters to train more efficiently. For example, they may be instructed to pay some extra attention to their backhand service return during a training session.
- the coaching or training information might also be communicated during the training session by means of a speech generating module connected to the computer.
- the computer and the speech generator might operate separately from the bat or be integrated therein.
- the location where the ball will hit the court can be computed in an acceptably precise manner on the basis of the velocity of the ball in combination with the location where the ball makes contact with the racquet, whilst it can also be derived from said measured place on the court whether the ball was in or out and, for example, whether the ball has been played with topspin.
- the method according to the invention makes it possible to store the above and other game situations in the memory of the computer and visualise these data at any desired moment, for example for evaluating a training session or a match.
Abstract
Description
- The invention relates to a method for measuring and computing parameters upon striking an object to be moved, such as a ball, at a hitting location on a striking surface of a striking device, such as a tennis racquet, in which at least one sensor system comprising at least one sensor, which system is attached to the striking device, delivers signals to a computer, which computes at least the velocity of the object being moved and/or the velocity of the striking device from said signals, which velocity is presented on one or more presentation devices.
- U.S. Pat. No. 6,134,965 describes an apparatus for deriving a parameter, in particular the velocity at which a ball is being struck, i.e. the sum of the velocity of the ball and the velocity (in opposite direction) of the racquet, from the vibrations of the racquet strings.
- German Patentschrift No 34 36 218 describes an apparatus for counting the number of strokes with a striking device, which apparatus comprises a contact foil that is present in or near the striking surface of said striking device.
- European
patent application No 0 407 631 discloses a method for testing that tennis racquet. - The object of the method according to the invention is to improve the method referred to in the introduction, and to that end it comprises the features defined in
claim 1 orclaim 2. The invention makes it possible to determine the velocity of the striking device itself during a swinging movement and/or at the time of an impact by measuring the acceleration, in particular the acceleration in centripetal direction. - Preferably, an enumeration both the overall number of strokes and of the number of good and bad strokes that have been played is given when using the method according to the invention for the purpose of improving the player's performance, to which end this preferred method is characterised in that the sensors measure the acceleration of the swing of the striking device and register whether an impact with the ball takes place on the front side or on the rear side of the striking device.
- From U.S. Pat. No. 5,816,580, for example, there is known a paddle having a striking surface on either side, on which a sensor is present for measuring the impact with a bat and delivering a relevant signal to a counter. The intention of the game is to return the ball while using a different side for each stroke. The counter registers that a mistake has been made, in which case the opponent scores a point. This registration thus has nothing to do with games in which it is the game position that determines whether to use a forehand or a backhand stroke.
- In a further development of the method according to the invention, not only the acceleration but also the magnitude and the frequency of the vibrations caused by the impact in at least one direction, preferably in two or three directions perpendicular to each other, are measured in order to determine which impact position on the striking surface causes the lowest amplitude vibrations and is thus the most effective.
- The invention furthermore comprises a striking device, such as a racquet, a bat or a stick in accordance with claims 6-8.
- Preferably, the accelerations experienced by the sensor are fed to a computer in the form of as many signals during each of the successive strokes, which computer is connected to a presentation device, on which the changes in the acceleration during the swing and upon impact during said successive strokes can be displayed. In this way it is possible to provide the player with accurate information as to his good and his bad shots, which will enable him to adapt his technique in a positive sense.
- It is noted that from U.S. Pat. No. 5,351,952 there is known a method for matching golfer to golf club, in which the swing time of a golfer is measured is and a golf club having the inverse of four times its natural frequency ap-proximately equal to the golfer's measured swing time is selected for the golfer.
- The invention makes it possible, depending on the specific embodiment, to take into account a number of important factors, such as velocity and acceleration of the striking device, the spatial direction of the striking device as a function of the direction in which the object to be moved hits the striking surface of the striking device and the angle of the striking device relative to the hitting location.
- The above and further aspects of the invention will be explained in more detail hereinafter with reference to the figures, which show an example of one of the possible methods and apparatuses according to the invention.
-
FIG. 1 shows a tennis racquet in the forehand position, which racquet comprises a housing formed on or in the handle, which housing accommodates a sensor system. -
FIG. 2 is a schematic representation of the electronic processing of the received signals. -
FIG. 3 is a graphic representation of centripetal forces and the impacts of the ball on the racquet. -
FIG. 4 is a graphic representation which shows the vibrations on the racquet in the case of a “good” hitting location and in the case of a “bad” hitting location. - The
tennis racquet 1 comprises astriking surface 2 consisting of strings, whose front side or rear side can be used for hitting a ball, the choice between the two sides being determined by the game position. To that end, the racquet undergoes a swinging movement W, in this case drawn in the position in which the front side of the striking surface is used, during which movement the racquet experiences a centripetal force. The magnitudes of the accelerations that occur in the X-, Y- and Z-directions are measured by a sensor system 3, which is mounted in or near the handle of thetennis racquet 1 or, preferably, in or near the tip of thetennis racquet 1. The sensor system comprises one or more piezoelectrical accelerometers and delivers corresponding signals to a computer, for example a microcomputer accommodated in the handle, which is connected, either by means of a signal conductor or wirelessly, to a remote presentation device (not shown), such as a display screen, an X-Y writer or the like, or to a mini screen or the like mounted on the racquet. - Since the acceleration, in particular in the “Z”-direction can reach a value of 2000 G, whereas only small accelerations (about 2 G) occur for registering the hitting locations or position changes from forehand to backhand, it is preferable to use separate sensors, whose degree of sensitivity is geared to accommodate said extreme differences in the acceleration values.
-
FIG. 2 schematically indicates the electronic path along which the signals from the three acceleration sensors 3 x, 3 y, 3 z are supplied, viasignal amplifiers 4 and an analog/digital converter 5, to amicroprocessor 6, which is connected to a storage/memory 7 on the one hand and to a presentation device, such as aPC 8, on the other hand.Control buttons 9 can be used for making a selection from the various images that are to be displayed, for example after a match or after a series of strokes. - The signals being received are converted in the computer, so that the following information can be provided on the presentation device:
-
- the interval of time between the successive strokes;
- the velocity of the racquet prior to hitting the ball;
- forehand or backhand;
- service stroke (yes, no) and velocity of the service;
- the maximum amplitude of the vibrations;
- the maximum acceleration in the “Z”-direction (a measure of the velocity of the ball);
- the hitting location of the ball on the striking surface of the racquet;
- the number of strokes per unit time;
- the total number of strokes;
- indications “in” or “out”.
- This information enables the player or the trainer to get an impression of the quality of the player's game by analysing a large number of different technical aspects and furthermore to find out which techniques of the game require adaptation or improvement.
- The forces along the three axes Cx, Cy, Cz as well as the impacts B are schematically and graphically represented in
FIG. 3 , which clearly shows the magnitudes of the various accelerations associated with said successive impacts. The rotational speed of thetennis racquet 1 about an effective centre of rotation, which is e.g. located between the player's wrist and elbow, can be determined on the basis of the centripetal force Cy. -
FIG. 4 clearly shows the difference between a stroke that generates strong vibrations, which occurs when the ball hits a striking surface at an incorrect position thereon, and a stroke that generates relatively mild vibrations, which occurs when the ball hits the striking surface at a correct position thereon. - Using the game data that can be obtained by means of the apparatus according to the invention, it is possible to combine the timing data with the acceleration data. All kinds of information/conclusions can be derived on the basis of heuristics by measuring the interval of time between successive strokes. Assuming, for example, that the player is serving and the ball is out, it is practically certain that the player will hit a new service within 3 to 5 seconds, without other types of strokes being hit in the meantime. In other words: all kinds of conclusions can be drawn on the basis of knowledge of the game (the rules), the types of strokes and heuristics. In the aforesaid case, for example, it is readily possible to determine precisely the number of first services that were in, the difference in velocity between the first and the second services and the number of services directed at the opponent's forehand and backhand, respectively, after the game. (Player A serves, player B receives the ball one-tenth of a second later).
- Furthermore it is for example possible to combine the data registered by one of the sensor systems according to the invention, which are attached not only to the bat but also to the wrist or the hand of a baseball pitcher, and the angular displacements and accelerations and parameters further derived therefrom.
- In this way it is for example possible to measure what kind of pitch shots (velocity and type of effect) are proving to be the most difficult for the batsman.
- Furthermore it is possible, of course, using the apparatus according to the invention, to have the computer give the player directions (so-called direct teaching), e.g. by means of an acoustic signal, during a game or during a training session.
- The methods according to the invention enable the sporters to train more efficiently. For example, they may be instructed to pay some extra attention to their backhand service return during a training session.
- The coaching or training information might also be communicated during the training session by means of a speech generating module connected to the computer. The computer and the speech generator might operate separately from the bat or be integrated therein.
- It stands to reason that if the position of the racquet relative to the court is also registered, the location where the ball will hit the court can be computed in an acceptably precise manner on the basis of the velocity of the ball in combination with the location where the ball makes contact with the racquet, whilst it can also be derived from said measured place on the court whether the ball was in or out and, for example, whether the ball has been played with topspin.
- The method according to the invention makes it possible to store the above and other game situations in the memory of the computer and visualise these data at any desired moment, for example for evaluating a training session or a match.
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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NL1020131 | 2002-03-07 | ||
NL1020131A NL1020131C1 (en) | 2002-03-07 | 2002-03-07 | Method and device for measuring and presenting parameters when striking an object to be moved with the aid of an impact tool. |
PCT/NL2003/000171 WO2003074137A1 (en) | 2002-03-07 | 2003-03-07 | Method for measuring parameters and a striking device |
Publications (1)
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US20050239583A1 true US20050239583A1 (en) | 2005-10-27 |
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US10/506,718 Abandoned US20050239583A1 (en) | 2002-03-07 | 2003-03-07 | Method for measuring parameters and a striking device |
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US (1) | US20050239583A1 (en) |
AU (1) | AU2003211645A1 (en) |
NL (1) | NL1020131C1 (en) |
WO (1) | WO2003074137A1 (en) |
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US20110021280A1 (en) * | 2009-07-27 | 2011-01-27 | Vladimir Boroda | Hitting technique by identifying ball impact points |
CN103357163A (en) * | 2013-08-04 | 2013-10-23 | 无锡同春新能源科技有限公司 | Training tennis racket taking solar cell as power supply |
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US9526964B2 (en) | 2014-05-05 | 2016-12-27 | Sony Corporation | Using pressure signal from racket to advise player |
US20170157480A1 (en) * | 2013-12-05 | 2017-06-08 | Sony Corporation | Analysis apparatus, analysis method, and recording medium |
WO2021024617A1 (en) * | 2019-08-08 | 2021-02-11 | 住友ゴム工業株式会社 | Method for determining specification of badminton racket and method for analyzing shaft behavior |
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GB2485994A (en) | 2010-11-30 | 2012-06-06 | St Microelectronics Res & Dev | Navigation device using a Single Photon Avalanche Diode (SPAD) detector |
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Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3889525A (en) * | 1974-08-07 | 1975-06-17 | Us Interior | Vibrating wire meter |
US4088324A (en) * | 1976-12-06 | 1978-05-09 | Farmer Everett Walter | Athletic implement with visual range display |
US4094504A (en) * | 1976-03-03 | 1978-06-13 | Barasch Kenneth S | Signalling device to be used with a sport implement for detecting and indicating the proper or improper use thereof |
US4101132A (en) * | 1975-12-05 | 1978-07-18 | Richard N. Conrey | Electronic athletic equipment |
US4138118A (en) * | 1976-06-11 | 1979-02-06 | Budney David R A | Golf club grip training device |
US4852875A (en) * | 1987-12-15 | 1989-08-01 | Mclennan Jim | Racquet swing training apparatus |
US4911441A (en) * | 1987-05-18 | 1990-03-27 | Adolf Brunner | Apparatus for controlling moves of a ball-hitting instrument in ball games |
US4928965A (en) * | 1984-07-10 | 1990-05-29 | Sumitomo Rubber Industries, Ltd. | Golf club and method of designing same |
US4991850A (en) * | 1988-02-01 | 1991-02-12 | Helm Instrument Co., Inc. | Golf swing evaluation system |
US5022651A (en) * | 1989-05-24 | 1991-06-11 | Barone Michael A | Exercise and training tensioning device for sporting racquets |
US5056783A (en) * | 1989-10-18 | 1991-10-15 | Batronics, Inc. | Sports implement swing analyzer |
US5178388A (en) * | 1990-05-10 | 1993-01-12 | Eckard Schlenker | Racket for striking a ball |
US5351952A (en) * | 1992-12-30 | 1994-10-04 | Hackman Lloyd E | Method of matching golfer to golf club |
US5542676A (en) * | 1993-02-11 | 1996-08-06 | Soundadvice For Sports, Inc. | Biosensor feedback device for sporting implements |
US5554033A (en) * | 1994-07-01 | 1996-09-10 | Massachusetts Institute Of Technology | System for human trajectory learning in virtual environments |
US5792000A (en) * | 1996-07-25 | 1998-08-11 | Sci Golf Inc. | Golf swing analysis method and apparatus |
US5796005A (en) * | 1991-06-12 | 1998-08-18 | Frolow; Jack L. | Flex meter for sports game implements |
US5816580A (en) * | 1996-12-23 | 1998-10-06 | Elliot A. Rudell | Electronic paddle game |
US5846086A (en) * | 1994-07-01 | 1998-12-08 | Massachusetts Institute Of Technology | System for human trajectory learning in virtual environments |
US6044704A (en) * | 1997-12-29 | 2000-04-04 | Sacher; David | Follow-through measuring device |
US6134965A (en) * | 1995-11-08 | 2000-10-24 | Raymond Joseph Somville | Device for measuring at least one physical parameter relating to a propelled game ball |
US6173610B1 (en) * | 1998-12-23 | 2001-01-16 | Robert L. Pace | Sports swing impact speed indicator |
US6224493B1 (en) * | 1999-05-12 | 2001-05-01 | Callaway Golf Company | Instrumented golf club system and method of use |
US6261102B1 (en) * | 1997-05-19 | 2001-07-17 | Brian M. Dugan | Method and apparatus for teaching proper swing tempo |
US6270434B1 (en) * | 2000-02-08 | 2001-08-07 | Anthony Shaw | Game racket to show the state of the body of an exerciser |
US6409616B1 (en) * | 2001-05-16 | 2002-06-25 | Topteam Technology Taiwan Co., Ltd. | Calorie counting racket |
US20030017882A1 (en) * | 2001-07-17 | 2003-01-23 | Gordon Hossack | Sport apparatus with impact sensing and display |
US6527655B2 (en) * | 2000-09-15 | 2003-03-04 | Stewart Sims | Counting racket |
US6830520B1 (en) * | 2004-04-21 | 2004-12-14 | Steven Bollar | Adjustable embedded bat speed indicator |
US7021140B2 (en) * | 2001-07-24 | 2006-04-04 | Noel C. Perkins | Electronic measurement of the motion of a moving body of sports equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3436218A1 (en) | 1984-10-03 | 1985-04-25 | Hans Kawitzki | Sporting equipment (tennis and table tennis bats) with electronic evaluation devices |
JPH01274783A (en) * | 1988-04-27 | 1989-11-02 | Fujikura Ltd | Racket equipped with acceleration sensor and monitor for the same racket |
DE3822521A1 (en) | 1988-07-04 | 1990-01-11 | Tegro Gmbh | METHOD FOR MEASURING THE QUALITY OF SPORTS RACKETS AND DEVICE |
BE1011942A6 (en) * | 1998-05-28 | 2000-03-07 | Angelroth Georges | Universal system for detecting and interpreting the impact of a ball on a racket |
-
2002
- 2002-03-07 NL NL1020131A patent/NL1020131C1/en not_active IP Right Cessation
-
2003
- 2003-03-07 WO PCT/NL2003/000171 patent/WO2003074137A1/en not_active Application Discontinuation
- 2003-03-07 US US10/506,718 patent/US20050239583A1/en not_active Abandoned
- 2003-03-07 AU AU2003211645A patent/AU2003211645A1/en not_active Abandoned
Patent Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3889525A (en) * | 1974-08-07 | 1975-06-17 | Us Interior | Vibrating wire meter |
US4101132A (en) * | 1975-12-05 | 1978-07-18 | Richard N. Conrey | Electronic athletic equipment |
US4094504A (en) * | 1976-03-03 | 1978-06-13 | Barasch Kenneth S | Signalling device to be used with a sport implement for detecting and indicating the proper or improper use thereof |
US4138118A (en) * | 1976-06-11 | 1979-02-06 | Budney David R A | Golf club grip training device |
US4088324A (en) * | 1976-12-06 | 1978-05-09 | Farmer Everett Walter | Athletic implement with visual range display |
US4928965A (en) * | 1984-07-10 | 1990-05-29 | Sumitomo Rubber Industries, Ltd. | Golf club and method of designing same |
US4911441A (en) * | 1987-05-18 | 1990-03-27 | Adolf Brunner | Apparatus for controlling moves of a ball-hitting instrument in ball games |
US4852875A (en) * | 1987-12-15 | 1989-08-01 | Mclennan Jim | Racquet swing training apparatus |
US4991850A (en) * | 1988-02-01 | 1991-02-12 | Helm Instrument Co., Inc. | Golf swing evaluation system |
US5022651A (en) * | 1989-05-24 | 1991-06-11 | Barone Michael A | Exercise and training tensioning device for sporting racquets |
US5056783A (en) * | 1989-10-18 | 1991-10-15 | Batronics, Inc. | Sports implement swing analyzer |
US5178388A (en) * | 1990-05-10 | 1993-01-12 | Eckard Schlenker | Racket for striking a ball |
US5796005A (en) * | 1991-06-12 | 1998-08-18 | Frolow; Jack L. | Flex meter for sports game implements |
US5351952A (en) * | 1992-12-30 | 1994-10-04 | Hackman Lloyd E | Method of matching golfer to golf club |
US5542676A (en) * | 1993-02-11 | 1996-08-06 | Soundadvice For Sports, Inc. | Biosensor feedback device for sporting implements |
US5554033A (en) * | 1994-07-01 | 1996-09-10 | Massachusetts Institute Of Technology | System for human trajectory learning in virtual environments |
US5846086A (en) * | 1994-07-01 | 1998-12-08 | Massachusetts Institute Of Technology | System for human trajectory learning in virtual environments |
US6134965A (en) * | 1995-11-08 | 2000-10-24 | Raymond Joseph Somville | Device for measuring at least one physical parameter relating to a propelled game ball |
US5792000A (en) * | 1996-07-25 | 1998-08-11 | Sci Golf Inc. | Golf swing analysis method and apparatus |
US5816580A (en) * | 1996-12-23 | 1998-10-06 | Elliot A. Rudell | Electronic paddle game |
US6261102B1 (en) * | 1997-05-19 | 2001-07-17 | Brian M. Dugan | Method and apparatus for teaching proper swing tempo |
US6044704A (en) * | 1997-12-29 | 2000-04-04 | Sacher; David | Follow-through measuring device |
US6173610B1 (en) * | 1998-12-23 | 2001-01-16 | Robert L. Pace | Sports swing impact speed indicator |
US6224493B1 (en) * | 1999-05-12 | 2001-05-01 | Callaway Golf Company | Instrumented golf club system and method of use |
US6270434B1 (en) * | 2000-02-08 | 2001-08-07 | Anthony Shaw | Game racket to show the state of the body of an exerciser |
US6527655B2 (en) * | 2000-09-15 | 2003-03-04 | Stewart Sims | Counting racket |
US6409616B1 (en) * | 2001-05-16 | 2002-06-25 | Topteam Technology Taiwan Co., Ltd. | Calorie counting racket |
US20030017882A1 (en) * | 2001-07-17 | 2003-01-23 | Gordon Hossack | Sport apparatus with impact sensing and display |
US7021140B2 (en) * | 2001-07-24 | 2006-04-04 | Noel C. Perkins | Electronic measurement of the motion of a moving body of sports equipment |
US6830520B1 (en) * | 2004-04-21 | 2004-12-14 | Steven Bollar | Adjustable embedded bat speed indicator |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110021280A1 (en) * | 2009-07-27 | 2011-01-27 | Vladimir Boroda | Hitting technique by identifying ball impact points |
WO2013167395A1 (en) | 2012-05-10 | 2013-11-14 | Movea | Method for analysing the game of a user of a racket |
CN103357163A (en) * | 2013-08-04 | 2013-10-23 | 无锡同春新能源科技有限公司 | Training tennis racket taking solar cell as power supply |
CN103357164A (en) * | 2013-08-04 | 2013-10-23 | 无锡同春新能源科技有限公司 | Training gymnastics ribbon taking wind power generation as power supply |
CN103394184A (en) * | 2013-08-04 | 2013-11-20 | 无锡同春新能源科技有限公司 | Training gymnastic ribbon with solar power generated electricity serving as power source |
CN103394182A (en) * | 2013-08-04 | 2013-11-20 | 无锡同春新能源科技有限公司 | Training badminton racket with wind power generated electricity serving as power source |
CN103394185A (en) * | 2013-08-04 | 2013-11-20 | 无锡同春新能源科技有限公司 | Training gymnastics ribbon |
CN103394186A (en) * | 2013-08-04 | 2013-11-20 | 无锡同春新能源科技有限公司 | Training sword with solar power generated electricity serving as power source |
CN103394187A (en) * | 2013-08-04 | 2013-11-20 | 无锡同春新能源科技有限公司 | Training sword |
US20170157480A1 (en) * | 2013-12-05 | 2017-06-08 | Sony Corporation | Analysis apparatus, analysis method, and recording medium |
US11173362B2 (en) | 2013-12-05 | 2021-11-16 | Sony Corporation | Analysis apparatus, analysis method, and recording medium |
US10406413B2 (en) * | 2013-12-05 | 2019-09-10 | Sony Corporation | Analysis apparatus, analysis method, and recording medium |
WO2015132311A1 (en) * | 2014-03-07 | 2015-09-11 | Head Technology Gmbh | Recognition of an impact point |
EP2916100A1 (en) * | 2014-03-07 | 2015-09-09 | Head Technology GmbH | Hit point detection |
US9526964B2 (en) | 2014-05-05 | 2016-12-27 | Sony Corporation | Using pressure signal from racket to advise player |
US9710612B2 (en) * | 2014-05-05 | 2017-07-18 | Sony Corporation | Combining signal information from shoes and sports racket |
US20150314164A1 (en) * | 2014-05-05 | 2015-11-05 | Sony Corporation | Combining signal information from shoes and sports racket |
US20160184686A1 (en) * | 2014-12-24 | 2016-06-30 | Sony Corporation | System and method for processing sensor data |
US10706740B2 (en) * | 2014-12-24 | 2020-07-07 | Sony Corporation | System and method for processing sensor data |
WO2021024617A1 (en) * | 2019-08-08 | 2021-02-11 | 住友ゴム工業株式会社 | Method for determining specification of badminton racket and method for analyzing shaft behavior |
Also Published As
Publication number | Publication date |
---|---|
AU2003211645A1 (en) | 2003-09-16 |
NL1020131C1 (en) | 2003-09-10 |
WO2003074137A1 (en) | 2003-09-12 |
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