EP0912918B1 - Montre services-tennis permettant de visualiser instantanement la vitesse de la balle de service - Google Patents
Montre services-tennis permettant de visualiser instantanement la vitesse de la balle de service Download PDFInfo
- Publication number
- EP0912918B1 EP0912918B1 EP97911310A EP97911310A EP0912918B1 EP 0912918 B1 EP0912918 B1 EP 0912918B1 EP 97911310 A EP97911310 A EP 97911310A EP 97911310 A EP97911310 A EP 97911310A EP 0912918 B1 EP0912918 B1 EP 0912918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- service
- ball
- velocity
- watches
- tennis
- 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.)
- Expired - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/02—Detectors of external physical values, e.g. temperature
-
- 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
- A63B2071/0658—Position or arrangement of display
- A63B2071/0661—Position or arrangement of display arranged on the user
- A63B2071/0663—Position or arrangement of display arranged on the user worn on the wrist, e.g. wrist bands
Definitions
- the present invention relates to a wristwatch, making it possible to measure the speed of a tennis ball in service.
- Knowing the speed of the service ball is important for the player and spectator. Sophisticated radar installations are beyond the reach of the vast majority of courts and amateurs too would like to know their performance. Here is a classic wristwatch with a digital reading immediate speed. The watch is completely independent of the system which calculate and visualize the speed it is the practical support.
- Each press on the pusher (1) alternately switches the calculation mode to kilometers or miles (2).
- the distance traveled by the ball is chosen at 18.50m (3) by the lateral pressure pusher (4) which scrolls the distances in one direction or the other.
- the watch comprising a microprocessor system and computer software becomes aware of this time interval and after a rule of three instantly displays the speed in kilometers (6). Converting to miles requires an additional division by 1.609 with results rounded to the nearest kilometer or mile.
- pressing the button (7) cancels the calculations in progress.
- the display automatically clears after ten seconds without operation.
- the display of the results during a competition is done in seconds which follow by manual or electronic display with remote control.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Electric Clocks (AREA)
Description
18,50 x 2 : 1 x 3600 = 133kmh ou 83 MPH. En cas de faute de service, un appui sur le poussoir (7) annule les calculs en cours. De toute façon l'affichage s'efface automatiquement au bout d'une dizaine de secondes sans opération.
Claims (4)
- Montre bracelet, permettant de mesurer la vitesse d'une balle de tennis au service, comportant des moyens d'affichage numériques, des moyens de mesure d'un intervalle de temps, des moyens de sélection de la distance parcourue par la balle et des moyens de calculs de la vitesse de ladite balle en fonction de la distance parcourue sélectionnée et de l'intervalle de temps mesuré, caractérisée en ce que la distance parcourue sélectionnée est de 18,5 mètres.
- Montre bracelet selon la revendication 1, caractérisée en ce que les moyens d'affichage numériques permettent d'afficher la distance parcourue en mètres ou en miles.
- Montre bracelet selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend en outre des moyens d'annulation des calculs.
- Montre bracelet selon la revendication 3, caractérisée en ce que lesdits moyens d'annulation des calculs sont des moyens manuels ou automatiques.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9612801A FR2754921B1 (fr) | 1996-10-22 | 1996-10-22 | Montre services-tennis permettant de visualiser instantanement la vitesse de la balle de service |
FR9612801 | 1996-10-22 | ||
PCT/FR1997/001885 WO1998018062A1 (fr) | 1996-10-22 | 1997-10-21 | Montre services-tennis permettant de visualiser instantanement la vitesse de la balle de service |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0912918A1 EP0912918A1 (fr) | 1999-05-06 |
EP0912918B1 true EP0912918B1 (fr) | 2003-05-21 |
Family
ID=9496854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97911310A Expired - Lifetime EP0912918B1 (fr) | 1996-10-22 | 1997-10-21 | Montre services-tennis permettant de visualiser instantanement la vitesse de la balle de service |
Country Status (5)
Country | Link |
---|---|
US (1) | US6330520B1 (fr) |
EP (1) | EP0912918B1 (fr) |
AU (1) | AU4873297A (fr) |
FR (1) | FR2754921B1 (fr) |
WO (1) | WO1998018062A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH693050A5 (fr) * | 1999-03-08 | 2003-01-31 | Montres Antima Sa Antima Uhren | Montre de golf avec double compteur et décrémenteur. |
TW200505966A (en) * | 2003-04-02 | 2005-02-16 | Dow Global Technologies Inc | Organosilicate resin formulation for use in microelectronic devices |
US20140334269A1 (en) * | 2013-05-10 | 2014-11-13 | Double-Alpha Academy B.V. | Shot Activated Timer System and Method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4371945A (en) * | 1980-12-01 | 1983-02-01 | Lawrence Joseph Karr | Electronic pedometer |
GB2208438B (en) * | 1987-08-06 | 1992-04-01 | 3A Electronics Limited | Apparatus for measuring the speed of a projectile |
US4780864A (en) * | 1988-03-21 | 1988-10-25 | Timex Corporation | Combination wristwatch and bicycle computer |
US4887249A (en) * | 1988-04-19 | 1989-12-12 | Timex Corporation | Bicycle watch - dual mode circuit |
FR2634895B3 (fr) * | 1988-07-29 | 1990-11-23 | Boy Robert | Procede de controle de la vitesse d'un projectile, dispositif pour sa mise en oeuvre et cible detectrice d'impact utilisee dans ce dispositif |
US4959807A (en) * | 1988-10-11 | 1990-09-25 | Atochem North America, Inc. | Device for measuring the speed of a moving object |
DE4041419A1 (de) * | 1990-01-04 | 1991-09-12 | Herbertz Heinz | Elektronische zaehleinrichtung fuer tenniswettkaempfe |
US5163014A (en) * | 1990-07-13 | 1992-11-10 | Calimeri Joseph J | Pitching speed indicator |
US5526326A (en) * | 1994-12-20 | 1996-06-11 | Creata Inc. | Speed indicating ball |
US5864061A (en) * | 1997-02-05 | 1999-01-26 | Dilz, Jr.; Albert E. | Miniature sports radar speed measuring device |
-
1996
- 1996-10-22 FR FR9612801A patent/FR2754921B1/fr not_active Expired - Fee Related
-
1997
- 1997-10-21 WO PCT/FR1997/001885 patent/WO1998018062A1/fr active IP Right Grant
- 1997-10-21 EP EP97911310A patent/EP0912918B1/fr not_active Expired - Lifetime
- 1997-10-21 AU AU48732/97A patent/AU4873297A/en not_active Abandoned
- 1997-10-21 US US09/091,484 patent/US6330520B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0912918A1 (fr) | 1999-05-06 |
AU4873297A (en) | 1998-05-15 |
US6330520B1 (en) | 2001-12-11 |
FR2754921A1 (fr) | 1998-04-24 |
FR2754921B1 (fr) | 1998-12-18 |
WO1998018062A1 (fr) | 1998-04-30 |
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