DE19505826A1 - Device for recognizing the contact surface of a sports object on the playing field or floor - Google Patents
Device for recognizing the contact surface of a sports object on the playing field or floorInfo
- Publication number
- DE19505826A1 DE19505826A1 DE19505826A DE19505826A DE19505826A1 DE 19505826 A1 DE19505826 A1 DE 19505826A1 DE 19505826 A DE19505826 A DE 19505826A DE 19505826 A DE19505826 A DE 19505826A DE 19505826 A1 DE19505826 A1 DE 19505826A1
- Authority
- DE
- Germany
- Prior art keywords
- ball
- field
- contact surface
- playing field
- floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- A63B71/0605—Decision makers and devices using detection means facilitating arbitration
-
- 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
Landscapes
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Health & Medical Sciences (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Radiation Pyrometers (AREA)
- Image Processing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Push-Button Switches (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Studio Devices (AREA)
- Electronic Switches (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Erkennung der Berührfläche eines Sportobjekts auf dem Spielfeld bzw. Boden, vorzugsweise eines Tennisballes, insbesondere zur Anzeige des Überschreitens einer vorgegebenen Linie, z. B. des Spielfeldrandes, wobei eine Infrarotkamera an einer geeigneten Position angebracht ist.The invention relates to a device for detecting the contact surface of a Sports object on the field or ground, preferably a tennis ball, in particular to indicate that a predetermined line has been exceeded, e.g. B. of Edge of the field, with an infrared camera attached to a suitable position.
Bevorzugte Anwendungsgebiete sind dabei die Bestimmung der Berührfläche von Bällen im Sport, insbesondere beim Tennis. In dieser Sportart ist es mitunter erforderlich, präzise Positionsfeststellungen der Berührfläche des Balles auf dem Spielfeld während des Spiels vornehmen zu können. Dabei muß beispielsweise festgestellt werden, ob der Ball einen bestimmten Bereich des Spielfelds berührt hat. Wünschenswert ist es auch, die Platzkoordinaten des Auftreffpunkts und eine eventuell vorhergegangene Berührung des Balles mit der Netzkante zu ermitteln. Außerdem die Laufarbeit des Athleten zu beurteilen und statistische Aussagen zu machen. Weiter kann eine erzielte Weite, z. B. beim Weitsprung oder Skispringen, gemessen werden, und außerdem die Bodenhaftung eines Fahrzeugs, z. B. eines Rennwagens, überprüft werden, um dann z. B. Rückschlüsse auf die Fahrwerkseinstellung zu ziehen. Die Infrarotaufnahmen können in Sportübertragungen von Fernsehanstalten verwendet werden.Preferred areas of application are the determination of the contact area of balls in sports, especially tennis. In this sport it is sometimes necessary precise positioning of the contact surface of the ball on the field during of the game. It must be determined, for example, whether the Ball has touched a certain area of the field. It is also desirable that Place coordinates of the point of impact and a possible previous touch of the Balles to determine with the net edge. Also the athlete's running work too assess and make statistical statements. Furthermore, a width achieved, for. B. long jump or ski jumping, be measured, and also the grip a vehicle, e.g. B. a racing car, checked, then z. B. Conclusions to pull on the chassis setting. The infrared images can be in Sports broadcasts used by television stations.
Nach dem Stand der Technik ist es bekannt, die Position der Berührfläche eines Balles durch Schieds- oder Linienrichter zu bestimmen. Diese Methode ist jedoch ungenau und beinhaltet die Möglichkeiten von Fehlentscheidungen.In the prior art it is known the position of the contact surface of a ball to be determined by arbitrators or line judges. However, this method is inaccurate and includes the possibilities of wrong decisions.
Es sind weiterhin Versuche bekannt, den Ball auf optischem Wege zu orten. Auch derartige Einrichtungen sind ungenau und beinhalten Fehlermöglichkeiten.Attempts are also known to locate the ball optically. Also such devices are inaccurate and contain the possibility of errors.
Die bekannten optischen und elektromagnetischen Überwachungseinrichtungen weisen insbesondere den Nachteil auf, daß lediglich die Möglichkeit besteht, die Position des Balles mit einer bestimmten Genauigkeit zu bestimmen, und nicht die Position der Berührfläche, wobei die geometrischen Abmessungen von Ball und Berührfläche nicht identisch sind.The known optical and electromagnetic monitoring devices have especially the disadvantage that there is only the possibility of changing the position of the Balles to determine with a certain accuracy, and not the position of the Touch surface, whereby the geometrical dimensions of ball and touch surface are not are identical.
Nach der DE-A 2 73 254.3 ist eine Vorrichtung und ein Verfahren zur Überwachung einer durch eine Grenzlinie definierten Fläche im Raum bekannt, bei der entlang der Grenzlinie zwei linienförmige elektromagnetische Wellen ausstrahlende Sendeeinrichtungen vorgesehen sind und entlang der Grenzlinie eine Empfangseinrichtung zum Empfangen der vom Objekt abgestrahlten elektromagnetischen Wellen angeordnet ist. Das zu überwachende Objekt wird dabei mit einer Einrichtung zur Beeinflussung der elektromagnetischen Felder der Sendeeinrichtung versehen. Dieser Einrichtung haftet der Nachteil an, daß der Ball konstruktiv verändert werden muß, und daß nicht die relevante Berührfläche das zu überwachende Objekt darstellt, sondern der Ball.According to DE-A 2 73 254.3 is a device and a method for monitoring a area in space defined by a boundary line, known along the boundary line two line-shaped transmitters emitting electromagnetic waves are provided and along the border line a receiving device for receiving the electromagnetic waves emitted by the object is arranged. That too The object to be monitored is provided with a device for influencing the provided electromagnetic fields of the transmitter. This institution is liable for Disadvantage that the ball must be changed constructively, and that not the relevant one Touch surface represents the object to be monitored, but the ball.
Gemäß WO 89/00 066 ist weiterhin ein Ballortungssystem bekannt, das vorzugsweise für Tennisbälle eingesetzt wird. Auch dieses System dient der Überwachung des Durchlaufs eines Tennisballes durch eine vorgegebene Linie. Hierbei sind entweder unterhalb oder oberhalb auf dem Boden des Tennisfeldes elektromagnetische Wellen ausstrahlende Sender und/oder Empfänger angebracht, die ein vom Ball reflektiertes Signal auswerten. Der Tennisball muß dabei spezielle magnetische Eigenschaften aufweisen.According to WO 89/00 066, a ball location system is also known, which is preferably for Tennis balls are used. This system also serves to monitor the throughput a tennis ball through a predetermined line. Here are either below or Above emitting electromagnetic waves on the floor of the tennis court Transmitter and / or receiver attached, which evaluate a signal reflected by the ball. The tennis ball must have special magnetic properties.
Das System nach DE 42 33 341 A1 arbeitet mit Sendern/Empfängern elektromagnetischer Wellen, wobei die Position des Balles an jeder Position des Spielfelds und zu jedem Zeitpunkt ermittelt werden kann.The system according to DE 42 33 341 A1 works with transmitters / receivers electromagnetic waves, the position of the ball at each position of the Field and can be determined at any time.
Allen diesen Einrichtungen haften die Nachteile an, daß konstruktive/bauliche Veränderungen an Ball/Spielfeld erforderlich sind, und daß der Ball anstatt der Berührfläche überwacht wird, und daß das Ergebnis durch die zum Teil hohen Ballgeschwindigkeiten durch Laufzeitfehler beeinflußt wird.All these facilities have the disadvantages that constructive / structural Changes to the ball / playing field are required, and that the ball instead of the Contact area is monitored, and that the result is due to the sometimes high Ball speeds are affected by runtime errors.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung zu schaffen, mit der eine präzise Positionsfeststellung der Berührfläche zwischen Sportobjekt bzw. Fahrzeug und Spielfeld bzw. Boden während des Spiels bzw. Einsatzes vorgenommen werden kann.The object of the invention is therefore to create a device with which a precise determination of the position of the contact surface between the sports object or vehicle and the playing field or ground during the game or operation can.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die beim Berühren des Sportobjekts bzw. Fahrzeugs auf dem Spielfeld bzw. Boden auftretende Reibungswärme unter Verwendung einer Infrarotkamera sichtbar gemacht wird.According to the invention the object is achieved in that when touching the Sports object or vehicle frictional heat occurring on the field or floor is visualized using an infrared camera.
Der erfindungsgemäße Gedanke kann bei Ballsportarten sowohl die Überwachung des Überschreitens einer Linie, als auch eine genaue Ortung des Auftreffpunktes des Balles in zwei Koordinaten ermöglichen. Bei Fahrzeugen kann die Fahrwerkseinstellung visuell auf einfache Weise überprüft werden.The idea according to the invention can be used in both ball sports to monitor the Crossing a line, as well as an exact location of the point of impact of the ball in allow two coordinates. In vehicles, the suspension setting can be visual be checked in a simple manner.
Ein wesentlicher Vorteil der Erfindung gegenüber der im Stand der Technik bekannten Einrichtungen liegt darin, daß die Berührfläche zwischen Ball und Spielfeld direkt, und nicht über die Position des Balles, ermittelt wird. Außerdem treten keine Ungenauigkeiten aufgrund der Ballgeschwindigkeit auf, da die Berührfläche ausgewertet wird, die je nach Ballgeschwindigkeit, Drall und Auftreffwinkel geometrisch verschieden ist.A major advantage of the invention over that known in the prior art Facilities is that the contact surface between the ball and the playing field is direct, and not about the position of the ball. Besides, no kick Inaccuracies due to the ball speed due to the touch surface being evaluated is geometrically different depending on the ball speed, swirl and impact angle is.
Da das Spielfeld ohne Berücksichtigung des Balles ein zweidimensionales System darstellt, treten keine Parallaxefehler auf. Somit können mit einer Kamera mehrere Linien überwacht werden.Because the playing field without considering the ball a two-dimensional system no parallax errors occur. This means that multiple lines can be created with one camera be monitored.
Es ist möglich, das Infrarotbild manuell, z. B. durch den Schiedsrichter, auszuwerten, oder die Auswertung unter Verwendung von zur Bildauswertung geeigneter Software auf einer DV-Anlage vorzunehmen.It is possible to manually, e.g. B. by the referee to evaluate or the evaluation using software suitable for image evaluation on a DV system.
Die Erfindung soll im folgenden anhand zweier Ausführungsbeispiele näher erläutert werden.The invention will be explained in more detail below using two exemplary embodiments will.
In der zugehörigen Zeichnung zeigenShow in the accompanying drawing
Fig. 1 einen möglichen Ballabdruck im Vergleich zu den geometrischen Abmessungen eines Tennisballes. Fig. 1 shows a possible ball print in comparison to the geometric dimensions of a tennis ball.
Fig. 1 zeigt, daß die Berührfläche BF zwischen Ball B und Spielfeld deutlich von der geometrischen Form des Kreises abweichen kann, insbesondere dann, wenn die Flugbahn des Balles flach ist. Der Ball gleitet eine bestimmte Strecke über das Spielfeld, wobei sich der Ball deformiert. Es gibt also keinen Berührpunkt, sondern eine Berührfläche, die sich dadurch auszeichnet, daß Reibungswärme entsteht, die für den Zeitraum von einigen Sekunden mit einer Infrarotkamera sichtbar gemacht werden kann. Aus dem Abklingen der Erwärmung an den auftretenden Berührstellen während eines Ballwechsels folgt, daß auf dem Spielfeld nie mehr als zwei bis drei Berührstellen gleichzeitig sichtbar sind. Da die Verwendung von Teleobjektiven möglich ist, ist eine sehr hohe Genauigkeit des Systems zu erreichen. Abweichungen von weniger als 1 mm sind möglich. Fig. 1 shows that the contact surface BF between ball B and the playing field can deviate significantly from the geometric shape of the circle, especially when the trajectory of the ball is flat. The ball glides a certain distance over the field, whereby the ball deforms. So there is no point of contact, but a contact surface that is characterized by the fact that frictional heat is generated, which can be made visible with an infrared camera for a period of a few seconds. As the warming subsides at the points of contact that occur during a ball change, it follows that never more than two to three points of contact are visible on the field at the same time. Since the use of telephoto lenses is possible, a very high accuracy of the system can be achieved. Deviations of less than 1 mm are possible.
Der besondere Vorteil der Erfindung besteht darin, daß der für die Schiedsrichterentscheidung relevante Ballabdruck auf dem Spielfeld sichtbar gemacht wird, indem eine Infrarotkamera die auftretende Reibungswärme sichtbar macht. Durch manuelle oder automatisierte Auswertung des Infrarotbildes gelangt man zur exakten Berührfläche zwischen Ball und Spielfeld, wobei die Geschwindigkeit des Balles keinen Einfluß auf das Ergebnis hat. Außerdem sind keine baulichen oder konstruktiven Veränderungen am Ball/Spielfeld erforderlich.The particular advantage of the invention is that for Referee decision made relevant ballprint visible on the field is made possible by an infrared camera making the frictional heat visible. By manual or automated evaluation of the infrared image leads to exact Contact surface between the ball and the playing field, the speed of the ball being none Has an impact on the result. In addition, there are no structural or constructive Changes to the ball / playing field required.
Beim zweiten Ausführungsbeispiel sei die Kamera auf eine Kurve gerichtet, die von einem Rennwagen mit hoher Geschwindigkeit durchfahren wird. Das Fahrzeug hat bei hoher Geschwindigkeit und gleichzeitig auftretenden Bodenunebenheiten keinen ständigen Bodenkontakt mit allen Rädern. Außerdem tritt ein Drift zum Kurvenäußeren auf. Durch die Auswertung von Infrarotaufnahmen kann der Zustand bzw. die Eignung des Fahrwerks beurteilt werden, ohne Meßeinrichtungen am Fahrzeug installieren zu müssen.In the second embodiment, the camera is directed to a curve that is from driving through a racing car at high speed. The vehicle has high speed and unevenness in the floor constant ground contact with all bikes. There is also a drift towards the outside of the curve on. The condition or suitability can be evaluated by evaluating infrared images of the undercarriage can be assessed without installing measuring devices on the vehicle have to.
Claims (5)
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19505826A DE19505826A1 (en) | 1995-02-21 | 1995-02-21 | Device for recognizing the contact surface of a sports object on the playing field or floor |
BR9607460A BR9607460A (en) | 1995-02-21 | 1996-02-21 | Process for detecting the contact surface of an existing sport object with a contact base |
JP8525298A JPH11500333A (en) | 1995-02-21 | 1996-02-21 | A method for detecting the contact surface between an object existing in sports and a contact area |
HU9802818A HUP9802818A2 (en) | 1995-02-21 | 1996-02-21 | Process for sensing the surface of an object that contacts a contact ground during the practice of a sport |
AU48743/96A AU709741B2 (en) | 1995-02-21 | 1996-02-21 | Method to detect the contact surface of an object used in sport with a contact ground |
CN96192044A CN1175907A (en) | 1995-02-21 | 1996-02-21 | Process for sensing surface of object that contacts contact ground during practice of sport |
AT96904705T ATE198052T1 (en) | 1995-02-21 | 1996-02-21 | METHOD FOR DETECTING THE CONTACT SURFACE OF AN OBJECT IN SPORT WITH A REASON FOR CONTACT |
CZ972638A CZ263897A3 (en) | 1995-02-21 | 1996-02-21 | Method of determining and making visible contact area of an object being used during sports activities, with contact surface |
EP96904705A EP0812228B1 (en) | 1995-02-21 | 1996-02-21 | Process for sensing the surface of an object that contacts a contact ground during the practice of a sport |
CA002213485A CA2213485A1 (en) | 1995-02-21 | 1996-02-21 | Method to detect the contact surface of an object used in sport with a contact ground |
KR1019970705780A KR19980702381A (en) | 1995-02-21 | 1996-02-21 | How to detect the contact surface of an object in contact with a contact point during a sporting event |
DE19680090T DE19680090D2 (en) | 1995-02-21 | 1996-02-21 | Method for detecting the contact area of an object present in sports with a contact ground |
PCT/DE1996/000266 WO1996025986A1 (en) | 1995-02-21 | 1996-02-21 | Process for sensing the surface of an object that contacts a contact ground during the practice of a sport |
DE59606217T DE59606217D1 (en) | 1995-02-21 | 1996-02-21 | METHOD FOR DETECTING THE TOUCH SURFACE OF AN OBJECT EXISTING IN SPORT WITH A CONTACT REASON |
MXPA/A/1997/006214A MXPA97006214A (en) | 1995-02-21 | 1997-08-14 | Procedure to capture or feel the surface contact of an object used in a sport with a container base |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19505826A DE19505826A1 (en) | 1995-02-21 | 1995-02-21 | Device for recognizing the contact surface of a sports object on the playing field or floor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19505826A1 true DE19505826A1 (en) | 1996-08-22 |
Family
ID=7754541
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19505826A Withdrawn DE19505826A1 (en) | 1995-02-21 | 1995-02-21 | Device for recognizing the contact surface of a sports object on the playing field or floor |
DE59606217T Expired - Fee Related DE59606217D1 (en) | 1995-02-21 | 1996-02-21 | METHOD FOR DETECTING THE TOUCH SURFACE OF AN OBJECT EXISTING IN SPORT WITH A CONTACT REASON |
DE19680090T Expired - Lifetime DE19680090D2 (en) | 1995-02-21 | 1996-02-21 | Method for detecting the contact area of an object present in sports with a contact ground |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE59606217T Expired - Fee Related DE59606217D1 (en) | 1995-02-21 | 1996-02-21 | METHOD FOR DETECTING THE TOUCH SURFACE OF AN OBJECT EXISTING IN SPORT WITH A CONTACT REASON |
DE19680090T Expired - Lifetime DE19680090D2 (en) | 1995-02-21 | 1996-02-21 | Method for detecting the contact area of an object present in sports with a contact ground |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0812228B1 (en) |
JP (1) | JPH11500333A (en) |
KR (1) | KR19980702381A (en) |
CN (1) | CN1175907A (en) |
AT (1) | ATE198052T1 (en) |
AU (1) | AU709741B2 (en) |
BR (1) | BR9607460A (en) |
CA (1) | CA2213485A1 (en) |
CZ (1) | CZ263897A3 (en) |
DE (3) | DE19505826A1 (en) |
HU (1) | HUP9802818A2 (en) |
WO (1) | WO1996025986A1 (en) |
Cited By (2)
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US6591216B1 (en) | 1998-07-09 | 2003-07-08 | Siemens Aktiengesellschaft | Device and method for determining a spatial position of an object |
WO2007098537A1 (en) * | 2006-03-01 | 2007-09-07 | Brennan Broadcast Group Pty Ltd | Detecting contacts during sporting activities etc |
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DE19641907C2 (en) * | 1996-10-11 | 2000-07-13 | Joachim Rigling | Procedure for monitoring ball games |
US6816185B2 (en) | 2000-12-29 | 2004-11-09 | Miki Harmath | System and method for judging boundary lines |
DE10109921A1 (en) * | 2001-03-01 | 2002-09-05 | Ruediger Schrott | Computer animation method for displaying the braking path of a racing car superimposed on the camera images of the car so that a television viewer can easily appreciate the performance of the driver and the car |
RU2254895C2 (en) * | 2002-12-26 | 2005-06-27 | Ворожцов Георгий Николаевич | Method for determining dynamic parameters of movement of material object during sportive matches or exercising, apparatus and method for evaluating sportsmen's technical and creative potential |
MD3989G2 (en) * | 2008-05-30 | 2010-08-31 | Еуджен МОРАРУ | Method for sports and educational training of teenagers |
MD4164C1 (en) * | 2010-03-04 | 2012-11-30 | Еуджен МОРАРУ | Method for the formation of skills for doing physical exercises during the morning exercises and during the day in children, and system for implementing the method |
ES2402728T3 (en) | 2010-11-23 | 2013-05-08 | Fundación Centro De Tecnologías De Interacción Visual Y Comunicaciones Vicomtech | Procedure for detecting the point of impact of a ball in sporting events |
EP2740120A4 (en) | 2011-08-05 | 2015-03-11 | Fox Sports Productions Inc | Selective capture and presentation of native image portions |
US11039109B2 (en) | 2011-08-05 | 2021-06-15 | Fox Sports Productions, Llc | System and method for adjusting an image for a vehicle mounted camera |
RU2530863C1 (en) * | 2013-06-07 | 2014-10-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Поволжский государственный технологический университет" | Method of training and assessment of accuracy of free throws in basketball |
US9288545B2 (en) * | 2014-12-13 | 2016-03-15 | Fox Sports Productions, Inc. | Systems and methods for tracking and tagging objects within a broadcast |
US11159854B2 (en) | 2014-12-13 | 2021-10-26 | Fox Sports Productions, Llc | Systems and methods for tracking and tagging objects within a broadcast |
US11758238B2 (en) | 2014-12-13 | 2023-09-12 | Fox Sports Productions, Llc | Systems and methods for displaying wind characteristics and effects within a broadcast |
US10143907B2 (en) * | 2015-12-09 | 2018-12-04 | Gregoire Gentil | Planar solutions to object-tracking problems |
CN109289187B (en) * | 2017-07-24 | 2021-04-30 | 北京英泰智科技股份有限公司 | Table tennis training and level examination system |
CN108568086B (en) * | 2018-04-24 | 2021-01-26 | 上海中医药大学 | Badminton match automatic referee platform based on Internet of things and use method thereof |
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GB2191361A (en) * | 1986-06-06 | 1987-12-09 | Michael Cyril Godin | Enchancing the image of retro-reflective projectiles |
DE3904458A1 (en) * | 1989-02-15 | 1990-08-23 | Helmut Datz | Method for the reversible marking of points of impact |
GB2264358A (en) * | 1992-02-20 | 1993-08-25 | Sector Limited | System for detecting position of impact of a projectile |
FR2706317B3 (en) * | 1993-06-15 | 1995-05-05 | Dianeige | Device for recording and counting crossings of skiers on slopes. |
-
1995
- 1995-02-21 DE DE19505826A patent/DE19505826A1/en not_active Withdrawn
-
1996
- 1996-02-21 BR BR9607460A patent/BR9607460A/en not_active Application Discontinuation
- 1996-02-21 EP EP96904705A patent/EP0812228B1/en not_active Expired - Lifetime
- 1996-02-21 DE DE59606217T patent/DE59606217D1/en not_active Expired - Fee Related
- 1996-02-21 AT AT96904705T patent/ATE198052T1/en not_active IP Right Cessation
- 1996-02-21 WO PCT/DE1996/000266 patent/WO1996025986A1/en not_active Application Discontinuation
- 1996-02-21 CN CN96192044A patent/CN1175907A/en active Pending
- 1996-02-21 KR KR1019970705780A patent/KR19980702381A/en not_active Application Discontinuation
- 1996-02-21 CZ CZ972638A patent/CZ263897A3/en unknown
- 1996-02-21 CA CA002213485A patent/CA2213485A1/en not_active Abandoned
- 1996-02-21 AU AU48743/96A patent/AU709741B2/en not_active Ceased
- 1996-02-21 HU HU9802818A patent/HUP9802818A2/en unknown
- 1996-02-21 DE DE19680090T patent/DE19680090D2/en not_active Expired - Lifetime
- 1996-02-21 JP JP8525298A patent/JPH11500333A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6591216B1 (en) | 1998-07-09 | 2003-07-08 | Siemens Aktiengesellschaft | Device and method for determining a spatial position of an object |
WO2007098537A1 (en) * | 2006-03-01 | 2007-09-07 | Brennan Broadcast Group Pty Ltd | Detecting contacts during sporting activities etc |
GB2451591A (en) * | 2006-03-01 | 2009-02-04 | Brennan Broadcast Group Pty Lt | Detecting contacts during sporting activities etc. |
GB2451591B (en) * | 2006-03-01 | 2009-08-19 | Brennan Broadcast Group Pty Lt | Detecting contacts during sporting activities etc. |
AU2007219710B2 (en) * | 2006-03-01 | 2011-10-13 | Brennan Broadcast Group Pty Ltd | Detecting contacts during sporting activities etc |
US8348276B2 (en) | 2006-03-01 | 2013-01-08 | Brennan Broadcast Group Pty Ltd | Detecting contacts during sporting activities etc |
Also Published As
Publication number | Publication date |
---|---|
MX9706214A (en) | 1998-03-31 |
KR19980702381A (en) | 1998-07-15 |
CA2213485A1 (en) | 1996-08-29 |
ATE198052T1 (en) | 2000-12-15 |
BR9607460A (en) | 1998-12-15 |
CZ263897A3 (en) | 1998-01-14 |
EP0812228B1 (en) | 2000-12-13 |
AU709741B2 (en) | 1999-09-02 |
DE59606217D1 (en) | 2001-01-18 |
WO1996025986A1 (en) | 1996-08-29 |
EP0812228A1 (en) | 1997-12-17 |
HUP9802818A2 (en) | 1999-03-29 |
DE19680090D2 (en) | 1998-02-26 |
AU4874396A (en) | 1996-09-11 |
JPH11500333A (en) | 1999-01-12 |
CN1175907A (en) | 1998-03-11 |
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