EP0911068A1 - Golf ball which can be retrieved by radio direction finding - Google Patents

Golf ball which can be retrieved by radio direction finding Download PDF

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Publication number
EP0911068A1
EP0911068A1 EP98119116A EP98119116A EP0911068A1 EP 0911068 A1 EP0911068 A1 EP 0911068A1 EP 98119116 A EP98119116 A EP 98119116A EP 98119116 A EP98119116 A EP 98119116A EP 0911068 A1 EP0911068 A1 EP 0911068A1
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EP
European Patent Office
Prior art keywords
transmitter
switch
golf ball
quartz crystal
unit
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Granted
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EP98119116A
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German (de)
French (fr)
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EP0911068B1 (en
Inventor
Liane Stübing-Classen
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GES Golf Equipment Systems GmbH
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GES Golf Equipment Systems GmbH
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Publication of EP0911068A1 publication Critical patent/EP0911068A1/en
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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
    • A63B43/00—Balls with special arrangements
    • 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
    • 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
    • A63B2024/0053—Tracking a path or terminating locations for locating an object, e.g. a lost ball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry

Definitions

  • the invention relates to a golf ball made by Radio bearing can be found with a Transmitting module, an antenna of a power supply and a switch-on unit for the transmitter, at which the transmitter has a quartz crystal as a resonator having.
  • the golf ball is with one after the tee activated transmitter.
  • a portable direction finder provided.
  • Such with electronic balls of retrievable golf balls are with passive transmitters without their own Energy supply using resonance effects work, and / or with active transmitters.
  • a golf ball with a resonance chip that is considered passive Sender works is in DE-OS 36 09 016 A1 described.
  • the resonance chip has a transmitter by a search signal from a portable DF transmitter / receiver is excited and on Radiates resonance signal.
  • Such a passive Transmitter has the disadvantage that the portable direction finder have both a receiver and a transmitter got to. This is expensive and requires two different frequencies to operate the retrievable golf balls.
  • the transmitter is as active transmission block executed by an in Golf ball powered battery becomes.
  • the transmitter is a search signal portable direction finder activated. This one too
  • the direction finder must be both a receiver and also have a transmitter.
  • a must in the golf ball sufficiently sensitive receiving circuit for that Search signal to be integrated to provide a reliable Activation even with a greater distance between Ensure golf ball and finder.
  • the US-PS 3,782,730 shows a golf ball with a active transmitter by an electromagnetic Alternating field of the direction finder is activated.
  • the Range of the alternating field is relatively small, so that the approximate direction of one further from the direction finder removed golf ball can not be located.
  • EP-PS 0 518 913 B1 there is a golf ball with a integrated active transmitter described.
  • the circuit is powered by a inductively charged capacitor, the transmitter activated immediately after charging is complete. It is a relatively expensive portable direction finder with built-in charging station required.
  • the Golf balls to avoid frequency overlap and to save energy until shortly before the tee in the charging station. This compares to Playing with conventional golf balls is an undesirable one Impairment.
  • FR 2 616 335 there is a rediscoverable golf ball shown in which the activation of the transmitter by an acceleration sensor. This recognizes the impulse on the golf ball when teeing off. For Deactivating the transmitter is a timer intended.
  • This circuit has the disadvantage that a additional, relatively expensive acceleration sensor necessary is.
  • a golf ball by radio direction finding is retrievable, with one only after one To create discount activatable transmitter.
  • the Switch-on device for the transmitter should be reliable, be inexpensive and easy.
  • the golf ball should an active transmitter, an antenna and a Have energy supply at its core and with the help of a portable direction finder can be found again.
  • the object is achieved in that the switch-on unit by a signal from Quartz crystal is activated that the switch-on unit has a threshold switch, the Threshold switch on the quartz crystal Compares voltage with a reference voltage and at Exceeding the reference voltage the transmitter block activated and that as a voltage on the quartz crystal is present, one by accelerating the Quartz oscillating voltage occurring at the tee evaluated based on a piezoelectric effect is, a simultaneous use of the Schwingguarzes both as a resonator and as Acceleration sensor is provided.
  • the switch-on unit is a threshold switch that when the transmitter is switched off on the quartz crystal applied voltage with a reference voltage compares. If the reference voltage is exceeded the threshold switch is switched on and the Send module activated.
  • the Reference voltage is at least 60 mA. So that is the quartz crystal both as an acceleration sensor for Activate the send module as well Clock supply of the transmitter block can be used. A additional switch-on sensor is no longer required.
  • a Switch-off unit provided that the transmission module after switches off at a certain time.
  • This Switch-off unit can be a counter module that Clock impulses from those on the transmitter clocked down clock frequencies of the quartz crystal pays and the transmission module after reaching one Reference value deactivated.
  • FIG Block diagram The structure of the transmitter electronics is shown in FIG Block diagram shown. It is a transmission module 1 provided with a quartz crystal 2 as a resonator. A Such a quartz-controlled transmitter is also a phase-locked loop (PLL) known.
  • the transmitter block 1 is clocked by the quartz crystal 2, the Vibration frequency is clocked down.
  • PLL phase-locked loop
  • To activate and deactivation of the transmitter module 1 is one Switch-on unit 3 with a threshold switch intended.
  • the switch-on unit 3 is also with the Quartz crystal 2 connected. When you reach one Reference voltage, which is approximately 60 mV the transmitter module 1 is activated via line 4.
  • the oscillation frequency of the quartz crystal 2 must be Operation of the transmitter module 1 are clocked down.
  • This clock rate is counted by a clock counter.
  • a clock counter Of the Transmission module 1 is deactivated as soon as a certain one Number of bars is reached that a defined Broadcast time corresponds.
  • the transmission power of the transmitter module 1 is one radiated antenna 5 integrated into the golf ball.
  • a loop antenna is advantageously used for this purpose used that electrically an LC parallel resonant circuit corresponds. It consists of a single turn, the as a conductor track on the, the circuit elements load-bearing circuit board.
  • the required Parallel capacitance can be an SMD capacitance or a printed interdigital capacity.
  • a battery can be used. Because the Switch-on unit 3 and the transmitter module 1 in Hibernate need no energy and the Transmitter module 1 activated only after the tee and after is switched off at a defined time, that is sufficient Charging capacity of conventional batteries for the Average lifespan of a golf ball is four Rounds of golf out.
  • the bearing of the golf ball can be done with known portable ones Direction finders take place.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Transmitters (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The golf ball includes a transmitter (1), antenna (5), power supply (6) and a switch-on unit (3). The latter is activated by a signal from a quartz oscillator (2). The voltage on the quartz oscillator is also evaluated when the ball is struck, so that the quartz acts both as a resonator and an acceleration sensor.

Description

Die Erfindung betrifft einen Golfball, der durch Funkpeilung wiederauffindbar ist, mit einem Sendebaustein, einer Antenne einer Energieversorgung und einer Einschalteinheit für den Sendebaustein, bei dem der Sendebaustein einen Schwingquarz als Resonator aufweist.The invention relates to a golf ball made by Radio bearing can be found with a Transmitting module, an antenna of a power supply and a switch-on unit for the transmitter, at which the transmitter has a quartz crystal as a resonator having.

Der Golfball ist mit einem nach dem Abschlag aktivierten Sender versehen. Zur Ortung ist ein tragbarer Peilempfänger vorgesehen. Derartige mit elektronischen Mitteln wiederauffindbare Golfbälle werden mit passiven Sendern, die ohne eigene Energieversorgung unter Ausnutzung von Resonanzeffekten arbeiten, und/oder mit aktiven Sendern ausgeführt.The golf ball is with one after the tee activated transmitter. To locate is a portable direction finder provided. Such with electronic balls of retrievable golf balls are with passive transmitters without their own Energy supply using resonance effects work, and / or with active transmitters.

Ein Golfball mit einem Resonanzchip, der als passiver Sender arbeitet, ist in der DE-OS 36 09 016 A1 beschrieben. Der Resonanzchip hat einen Sendebaustein, der durch ein Suchsignal von einem tragbaren Peilsender-/ empfänger angeregt wird und ein Resonanzsignal abstrahlt. Ein derartiger passiver Sender hat den Nachteil, daß das tragbare Peilgerät sowohl einen Empfänger, als auch einen Sender haben muß. Dies ist kostenaufwendig und erfordert zwei unterschiedliche Frequenzen zum Betrieb des wiederauffindbaren Golfballs.A golf ball with a resonance chip that is considered passive Sender works, is in DE-OS 36 09 016 A1 described. The resonance chip has a transmitter by a search signal from a portable DF transmitter / receiver is excited and on Radiates resonance signal. Such a passive Transmitter has the disadvantage that the portable direction finder have both a receiver and a transmitter got to. This is expensive and requires two different frequencies to operate the retrievable golf balls.

Eine ähnliche Schaltung ist in der WO 89/02768 gezeigt. In einer Ausführungsform ist der Sender jedoch als aktiver Sendebaustein ausgeführt, der durch eine im Golfball integrierten Batterie mit Energie versorgt wird. Der Sender wird durch ein Suchsignal eines tragbaren Peilgerätes aktiviert. Auch bei diesem Verfahren muß das Peilgerät sowohl einen Empfänger als auch einen Sender haben. Zudem muß in dem Golfball eine ausreichend empfindliche Empfangsschaltung für das Suchsignal integriert sein, um eine zuverlässige Aktivierung auch bei einer größeren Entfernung zwischen Golfball und Suchgerät zu gewährleisten.A similar circuit is shown in WO 89/02768. In one embodiment, however, the transmitter is as active transmission block executed by an in Golf ball powered battery becomes. The transmitter is a search signal portable direction finder activated. This one too The direction finder must be both a receiver and also have a transmitter. In addition, a must in the golf ball sufficiently sensitive receiving circuit for that Search signal to be integrated to provide a reliable Activation even with a greater distance between Ensure golf ball and finder.

Die US-PS 3,782,730 zeigt einen Golfball mit einem aktiven Sender, der durch ein elektromagnetisches Wechselfeld des Peilgerätes aktiviert wird. Die Reichweite des Wechselfeldes ist relativ gering, so daß die ungefähre Richtung eines weiter vom Peilgerät entfernten Golfballs nicht geortet werden kann. The US-PS 3,782,730 shows a golf ball with a active transmitter by an electromagnetic Alternating field of the direction finder is activated. The Range of the alternating field is relatively small, so that the approximate direction of one further from the direction finder removed golf ball can not be located.

Die genannten Nachteile treten bei Golfbällen mit aktiven Sendern nicht auf, die bereits vor oder während des Abschlags des Golfballes aktiviert werden.The disadvantages mentioned occur with golf balls active stations that are already on or before the tee off of the golf ball can be activated.

In der EP-PS 0 518 913 B1 ist ein Golfball mit einem integrierten aktiven Sender beschrieben. Die Spannungsversorgung der Schaltung erfolgt durch einen induktiv aufgeladenen Kondensator, wobei der Sender direkt nach Beendigung des Ladevorgangs aktiviert wird. Es ist ein relativ aufwendiges tragbares Peilgerät mit eingebauter Ladestation erforderlich. Zudem müssen die Golfbälle zur Vermeidung von Frequenzüberschneidungen und zur Energieeinsparung bis kurz vor dem Abschlag in der Ladestation sein. Dies stellt im Vergleich zum Spiel mit herkömmlichen Golfbällen eine unerwünschte Beeinträchtigung dar.In EP-PS 0 518 913 B1 there is a golf ball with a integrated active transmitter described. The The circuit is powered by a inductively charged capacitor, the transmitter activated immediately after charging is complete. It is a relatively expensive portable direction finder with built-in charging station required. In addition, the Golf balls to avoid frequency overlap and to save energy until shortly before the tee in the charging station. This compares to Playing with conventional golf balls is an undesirable one Impairment.

In der FR 2 616 335 ist ein wiederauffindbarer Golfball gezeigt, bei dem die Aktivierung des Senders durch einen Beschleunigungssensor erfolgt. Dieser erkennt den auf den Golfball wirkenden Impuls beim Abschlag. Zur Deaktivierung des Senders ist eine Zeitschaltung vorgesehen. Diese Schaltung hat den Nachteil, daß ein zusätzlicher, relativ teurer Beschleunigungssensor notwendig ist.In FR 2 616 335 there is a rediscoverable golf ball shown in which the activation of the transmitter by an acceleration sensor. This recognizes the impulse on the golf ball when teeing off. For Deactivating the transmitter is a timer intended. This circuit has the disadvantage that a additional, relatively expensive acceleration sensor necessary is.

Ausgehend hiervon war es daher die Aufgabe der Erfindung, einen Golfball, der durch Funkpeilung wiederauffindbar ist, mit einem erst nach einem Abschlag aktivierbaren Sender zu schaffen. Die Einschalteinrichtung für den Sender sollte zuverlässig, kostengünstig und einfach sein. Der Golfball sollte einen aktiven Sendebaustein, eine Antenne und eine Energieversorgung in seinem Kern haben und mit Hilfe eines tragbaren Peilempfängers wiederauffindbar sein.Based on this, it was therefore the task of Invention, a golf ball by radio direction finding is retrievable, with one only after one To create discount activatable transmitter. The Switch-on device for the transmitter should be reliable, be inexpensive and easy. The golf ball should an active transmitter, an antenna and a Have energy supply at its core and with the help of a portable direction finder can be found again.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Einschalteinheit durch ein Signal des Schwingquarzes aktiviert wird, daß die Einschalteinheit einen Schwellwertschalter aufweist, wobei der Schwellwertschalter die am Schwingquarz anliegende Spannung mit einer Referenzspannung vergleicht und bei Überschreiten der Referenzspannung den Sendebaustein aktiviert und daß als Spannung, die am Schwingquarz anliegt, eine durch eine Beschleunigung des Schwingquarzes beim Abschlag auftretende Spannung aufgrund eines piezoelektrischen Efektes ausgewertet wird, wobei eine gleichzeitige Verwendung des Schwingguarzes sowohl als Resonator als auch als Beschleunigungssensor vorgesehen ist.The object is achieved in that the switch-on unit by a signal from Quartz crystal is activated that the switch-on unit has a threshold switch, the Threshold switch on the quartz crystal Compares voltage with a reference voltage and at Exceeding the reference voltage the transmitter block activated and that as a voltage on the quartz crystal is present, one by accelerating the Quartz oscillating voltage occurring at the tee evaluated based on a piezoelectric effect is, a simultaneous use of the Schwingguarzes both as a resonator and as Acceleration sensor is provided.

Die Einschalteinheit ist ein Schwellwertschaltern, der die bei ausgeschaltetem Sendebaustein am Schwingquarz anliegende Spannung mit einer Referenzspannung vergleicht. Bei Überschreiten der Referenzspannung wird der Schwellwertschalter eingeschaltet und der Sendebaustein aktiviert.The switch-on unit is a threshold switch that when the transmitter is switched off on the quartz crystal applied voltage with a reference voltage compares. If the reference voltage is exceeded the threshold switch is switched on and the Send module activated.

Es hat sich herausgestellt, daß die beim Abschlag eines Golfballes auftretenden piezoelektrischen Effekte in herkömmlichen Schwingquarzen ausreichend groß sind, um zuverlässig gemessen werden zu können. Die Referenzspannung beträgt mindestens 60 mA. Damit ist der Schwingquarz sowohl als Beschleunigungssensor zum Aktivieren des Sendebausteins als auch zur Taktversorgung des Sendebausteins verwendbar. Ein zusätzlicher Einschaltsensor ist nicht mehr erforderlich. It has been found that when teeing off a Golf balles occurring piezoelectric effects in conventional quartz crystals are large enough to to be able to be measured reliably. The Reference voltage is at least 60 mA. So that is the quartz crystal both as an acceleration sensor for Activate the send module as well Clock supply of the transmitter block can be used. A additional switch-on sensor is no longer required.

In einer besonderen Ausführungsform ist eine Ausschalteinheit vorgesehen, die den Sendebaustein nach einer bestimmten Zeit ausschaltet. Diese Ausschalteinheit kann ein Zählerbaustein sein, der Taktimpulse der die am Sendebaustein anliegenden, heruntergetakteten Taktfrequenzen des Schwingquarzes zahlt und den Sendebaustein nach Erreichen eines Referenzwertes deaktiviert.In a special embodiment, a Switch-off unit provided that the transmission module after switches off at a certain time. This Switch-off unit can be a counter module that Clock impulses from those on the transmitter clocked down clock frequencies of the quartz crystal pays and the transmission module after reaching one Reference value deactivated.

Zeichnungdrawing

Die Erfindung wird nachfolgend anhand der beigefügten Zeichnung näher erläutert. Es zeigt

Fig. 1
ein Blockschaltbild der in den Golfball integrierten Sendeelektronik.
The invention is explained in more detail below with reference to the accompanying drawing. It shows
Fig. 1
a block diagram of the transmitter electronics integrated in the golf ball.

AusführungsbeispielEmbodiment

Der Aufbau der Sendeelektronik ist in der Figur 1 als Blockschaltbild dargestellt. Es ist ein Sendebaustein 1 mit einem Schwingquarz 2 als Resonator vorgesehen. Ein derartiger quarzgesteuerter Sender ist auch als Phase-Locked-Loop (PLL) bekannt. Der Sendebaustein 1 wird durch den Schwingquarz 2 getaktet, wobei die Schwingfrequenz heruntergetaktet wird. Zur Aktivierung und Deaktivierung des Sendebausteins 1 ist eine Einschalteinheit 3 mit einem Schwellwertschalter vorgesehen. Die Einschalteinheit 3 ist zudem mit dem Schwingquarz 2 verbunden. Bei Erreichen einer Referenzspannung, die ungefähr bei 60 mV liegt, wird der Sendebaustein 1 über die Leitung 4 aktiviert.The structure of the transmitter electronics is shown in FIG Block diagram shown. It is a transmission module 1 provided with a quartz crystal 2 as a resonator. A Such a quartz-controlled transmitter is also a phase-locked loop (PLL) known. The transmitter block 1 is clocked by the quartz crystal 2, the Vibration frequency is clocked down. To activate and deactivation of the transmitter module 1 is one Switch-on unit 3 with a threshold switch intended. The switch-on unit 3 is also with the Quartz crystal 2 connected. When you reach one Reference voltage, which is approximately 60 mV the transmitter module 1 is activated via line 4.

Die Schwingfrequenz des Schwingquarzes 2 muß zum Betreiben des Sendebausteins 1 heruntergetaktet werden. The oscillation frequency of the quartz crystal 2 must be Operation of the transmitter module 1 are clocked down.

Diese Taktrate wird von einem Taktzähler gezählt. Der Sendebaustein 1 wird deaktiviert, sobald eine bestimmte Anzahl von Takten erreicht wird, die einer definierten Sendezeit entspricht.This clock rate is counted by a clock counter. Of the Transmission module 1 is deactivated as soon as a certain one Number of bars is reached that a defined Broadcast time corresponds.

Die Sendeleistung des Sendebausteins 1 wird mit einer in den Golfball integrierten Antenne 5 abgestrahlt. Hierzu wird vorteilhafterweise eine Loopantenne verwendet, die elektrisch einem LC-Parallelschwingkreis entspricht. Sie besteht aus einer einzigen Windung, die als Leiterbahn auf der, die Schaltungselemente tragenden Platine, ausgeführt ist. Die erforderliche Parallelkapazität kann eine SMD-Kapazität oder eine gedruckte Interdigitalkapazität sein.The transmission power of the transmitter module 1 is one radiated antenna 5 integrated into the golf ball. A loop antenna is advantageously used for this purpose used that electrically an LC parallel resonant circuit corresponds. It consists of a single turn, the as a conductor track on the, the circuit elements load-bearing circuit board. The required Parallel capacitance can be an SMD capacitance or a printed interdigital capacity.

Als Energieversorgung 6 für die Sendeelektronik kann eine Batterie verwendet werden. Dadurch, daß die Einschalteinheit 3 und der Sendebaustein 1 im Ruhezustand keine Energie benötigen und der Sendebaustein 1 erst beim Abschlag aktiviert und nach einer definierten Zeit ausgeschaltet wird, reicht die Ladekapazität herkömmlicher Batterien für die Lebensdauer eines Golfballs von durchschnittlich vier Golfrunden aus.As a power supply 6 for the transmitter electronics can a battery can be used. Because the Switch-on unit 3 and the transmitter module 1 in Hibernate need no energy and the Transmitter module 1 activated only after the tee and after is switched off at a defined time, that is sufficient Charging capacity of conventional batteries for the Average lifespan of a golf ball is four Rounds of golf out.

Die Peilung des Golfballs kann mit bekannten tragbaren Peilempfängern erfolgen.The bearing of the golf ball can be done with known portable ones Direction finders take place.

Claims (3)

Golfball, der durch Funkpeilung wiederauffindbar ist, mit einem Sendebaustein (1), einer Antenne (5), einer Energieversorgung (6) und einer Einschalteinheit (3) für den Sendebaustein (1), bei dem der Sendebaustein (1) einen Schwingquarz (2) als Resonator aufweist, dadurch gekennzeichnet, daß die Einschalteinheit (3) durch ein Signal des Schwingquarzes (2) aktiviert wird, daß die Einschalteinheit (3) einen Schwellwertschalter aufweist, wobei der Schwellwertschalter die am Schwingquarz (2) anliegende Spannung mit einer Referenzspannung vergleicht und bei Überschreiten der Referenzspannung den Sendebaustein (1) aktiviert und daß als Spannung, die am Schwingquarz (2) anliegt, eine durch eine Beschleunigung des Schwingquarzes (2) beim Abschlag auftretende Spannung aufgrund eines piezoelektrischen Efektes ausgewertet wird, wobei eine gleichzeitige Verwendung des Schwingquarzes sowohl als Resonator als auch als Beschleunigungssensor vorgesehen ist.Golf ball that can be found by radio direction finding is, with a transmitter (1), an antenna (5), a power supply (6) and one Switch-on unit (3) for the transmitter (1), at which the transmitter module (1) has a quartz crystal (2) has as a resonator, characterized in that the switch-on unit (3) by a signal from Quartz crystal (2) is activated that the Switch-on unit (3) a threshold switch has, the threshold switch on Quartz crystal (2) with a voltage Compares reference voltage and when exceeded the reference voltage the transmitter block (1) activated and that as a voltage on the quartz crystal (2) is present, one by accelerating the Quartz crystal (2) occurring at the tee Voltage due to a piezoelectric effect is evaluated, with a simultaneous Use of the quartz crystal as a resonator is also provided as an acceleration sensor. Golfball nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine zeitgesteuerte Ausschalteinheit für den Sendebaustein (1).Golf ball according to one of the preceding claims, characterized by a time-controlled switch-off unit for the transmitter module (1). Golfball nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ausschalteinheit einen Zähler für die Taktimpulse des Schwingquarzes (2) aufweist, wobei der Sendebaustein (1) deaktiviert wird, sobald die gezählten Taktimpulse einen Referenzwert erreicht haben.Golf ball according to one of the preceding claims, characterized in that the switch-off unit has a counter for the clock pulses of the quartz crystal (2), the transmission module (1) being deactivated as soon as the counted clock pulses have reached a reference value.
EP98119116A 1997-10-18 1998-10-09 Golf ball which can be retrieved by radio direction finding Expired - Lifetime EP0911068B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19746168 1997-10-18
DE19746168A DE19746168C2 (en) 1997-10-18 1997-10-18 Golf ball that can be found by radio direction finding

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EP0911068A1 true EP0911068A1 (en) 1999-04-28
EP0911068B1 EP0911068B1 (en) 2003-03-05

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GB2428592A (en) * 2005-07-27 2007-02-07 Ashley Ratcliffe Transmitter tag for a golf ball
GB2428592B (en) * 2005-07-27 2010-02-17 Ashley Ratcliffe Transmitter tag
US7811163B2 (en) 2005-07-27 2010-10-12 Ashley Ratcliffe Transmitter tag

Also Published As

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DE19746168C2 (en) 2001-03-22
DE19746168A1 (en) 1999-04-22
ATE233584T1 (en) 2003-03-15
EP0911068B1 (en) 2003-03-05

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