WO2009026951A1 - Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf - Google Patents

Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf Download PDF

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Publication number
WO2009026951A1
WO2009026951A1 PCT/EP2007/007646 EP2007007646W WO2009026951A1 WO 2009026951 A1 WO2009026951 A1 WO 2009026951A1 EP 2007007646 W EP2007007646 W EP 2007007646W WO 2009026951 A1 WO2009026951 A1 WO 2009026951A1
Authority
WO
WIPO (PCT)
Prior art keywords
impact
sensor
point
measuring
plate
Prior art date
Application number
PCT/EP2007/007646
Other languages
German (de)
English (en)
Inventor
Richard Jaekel
Arnold Herp
Original Assignee
Richard Jaekel
Arnold Herp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richard Jaekel, Arnold Herp filed Critical Richard Jaekel
Priority to EP07802063.3A priority Critical patent/EP2183036B1/fr
Priority to CA2696881A priority patent/CA2696881A1/fr
Priority to KR1020107007063A priority patent/KR20100061710A/ko
Priority to PCT/EP2007/007646 priority patent/WO2009026951A1/fr
Priority to US12/675,860 priority patent/US20100222152A1/en
Priority to JP2010522192A priority patent/JP2010536514A/ja
Publication of WO2009026951A1 publication Critical patent/WO2009026951A1/fr

Links

Classifications

    • 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
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3617—Striking surfaces with impact indicating means, e.g. markers
    • A63B69/362—Striking surfaces with impact indicating means, e.g. markers electrical or electronic
    • 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
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3623—Training appliances or apparatus for special sports for golf for driving
    • A63B69/3632—Clubs or attachments on clubs, e.g. for measuring, aligning
    • 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
    • A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • 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
    • A63B60/42—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
    • 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
    • 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
    • A63B2220/10—Positions
    • A63B2220/13—Relative positions
    • 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
    • A63B2220/10—Positions
    • A63B2220/16—Angular positions
    • 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
    • A63B2220/34—Angular 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
    • A63B2220/62—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
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/801—Contact switches
    • 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
    • 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 device and a method for controlling the accuracy with which a golf club hits a golf ball with the club face of its club head.
  • the company Alan Electronics GmbH, 63303 Dreieich with the Internet address www.dixxgolf.de under the name "DiXX Digital Instruction Putter” a golf club sold, which offers the possibility, at the back of the club head either a housing, the acceleration tion sensors, a measuring and evaluation electronics and a flat screen, or a weight that is as heavy as this unit to attach interchangeably.
  • the accelerometers are capable of detecting several parameters of the golf club's motion during a swing, including the location of the impact point on one or the other soap from the sweet spot. A precise determination of that point of the club face with which the ball was hit, however, is not possible with such a measuring method.
  • the invention is therefore an object of the invention to provide a device of the type mentioned above, which can be attached to a conventional golf club, without changing its properties significantly, no disturbing side activity during playing only requires for measuring purposes, the impact of the golf ball more than registered so far and the recorded and according to the program evaluated measurement results in a form that they are always at hand.
  • a plate-shaped sensor which can be detachably fastened to the face in a specific position and by means of which the position of the point of impact can be locally localized in the event of impact against a golf ball
  • a radio module connected to the measuring and arithmetic circuit for the wireless transmission of the measurement results to an evaluation device in the manner of a mobile phone, smart phone or PDA 's for program-controlled evaluation and display of the measurement results on its screen.
  • the plate-shaped sensor is so light and thin that it is virtually imperceptible when a strike is made. As a result of the attachment to the golf club's face, not on its back, every point of impact is registered very precisely.
  • the preferably attachable to the shaft of the golf club measuring and calculation circuit increases its weight only minimally, because they need only perform the necessary functions for controlling the measurement process and for determining the coordinates of the point of impact and spark the measurement results, for example, to a cell phone or smartphone. There they can be stored and evaluated by means of suitable programs.
  • a cell phone, smartphone or the like with a radio module is usually available anyway and is regularly taken to the golf course. Suitable programs for the evaluation of the measurement results can be made available on the Internet for downloading to the mobile phone or smartphone.
  • the plate-shaped sensor is preferably constructed in the manner of a computer touchpad with a rectangular support plate having a first electrically conductive layer applied on its front side, which is connected along two opposite edge regions respectively to a printed conductor connected to a signal line, and one in front of Support plate arranged, flexible protective plate having a deposited on its back, the second electrically conductive layer, which is connected along two opposite edge regions in each case connected to a signal line, a printed conductor extending transversely to the interconnected with the first conductive layer interconnects, wherein the conductive layers are separated by elastic spacers, the restoring force of which is chosen so that it is only temporarily in contact with a golf ball at the impact point for contact between the conductive layer n comes.
  • Such a touchpad is described, for example, in US Pat. No. 6,239,790 B1, which is hereby incorporated by reference for the purpose of describing the operation of the above-identified sensor for the sake of simplicity.
  • a computer touchpad for example, on a laptop, properly mounted insoluble in the case of the computer and only relatively light and slow touched with the finger.
  • the sensor of the measuring device according to the invention is mechanically much more heavily loaded by the blows against a hard golf ball.
  • different requirements apply to the sensor because, in contrast to a computer touchpad, it should be easily detachable from the supporting surface.
  • the reduction of the thickness of the carrier plate provides the advantage that it and with it the plate-shaped sensor becomes more flexible, so that it can be detached more easily when it is fastened to the striking surface of the golf club with a double-sided adhesive film.
  • the support plate of the touchpad on its back or bottom is provided with tracks and carries electronic components.
  • the sensor electronics are located in the housing, preferably mounted on the shaft of the golf club, of the measuring and calculating circuit.
  • the thinner support plate and the displacement of the sensor electronics to the club shaft has the further advantageous consequence that the entire plate-shaped sensor need only have a thickness of about 1 to 2 mm and thus the clubface of the golf club is only minimally advanced.
  • the sensor of the new device is more exposed to changing temperature and humidity than a computer touchpad. Therefore, it is expedient that the protective plate in the edge region materially connected firmly and tightly connected to the carrier plate except for a ventilation opening, z. B. is glued.
  • the ventilation opening can be covered with a waterproof, but gas-permeable film or by an overlap, such. As in a labyrinth seal, be sealed so that the sensor is at least dust and splash-proof to IP54.
  • the sensory-active area of the sensor only needs to be about 45 to 55 mm wide and about 16 to 20 mm for putter, and 20-30 mm for rackets for pitching and chipping.
  • the sweet spot is preferably in the middle.
  • the signal lines between the sensor and the measuring and computing circuit have a separable connector.
  • This allows the two units to be individually attached to the golf rack and replaced.
  • one connector half is fixedly attached to the housing of the measuring or arithmetic circuit or fixed to the carrier plate, while the other half connector is located at the free end of a cable.
  • this housing On the shaft of the golf club a variety of design variants are available. It may already be sufficient to fix the housing frictionally by means of at least one clamp or a tension band on the shaft, wherein a rubber-like contact surface or intermediate layer is advantageous.
  • Fig. 1 is a schematic representation of the overall configuration of the proposed device
  • FIG. 2 shows a simplified cross section through the sensor
  • Fig. 3 is an equivalent circuit diagram of the sensor
  • Fig. 4 shows the essential parts of the attached on the club shaft sensor electronics
  • Fig. 5 shows a simplified cross section through the housing of the sensor electronics and the club shaft at an attachment point.
  • a golf club is shown, the club head with 10, 12 with shaft and handle 14 are designated.
  • a sensor 18 explained in more detail below is fixed, whose active sensitive area is designated 20.
  • the directions of the coordinates x, y and z used below are also entered. Their common starting point is in Sweet Spot 22 of the clubface 16.
  • the sensor 18 is connected via a plug connection 24 and to a cable 26 combined signal lines with a mounted in a protective housing 28, generally designated 30 sensor electronics with a measuring and arithmetic circuit, which is mounted by means of an easily detachable fastening mechanism 32 on the shaft 12 and a radio module 34, preferably Bluetooth, with a mobile evaluation device 36 in the manner of a mobile phone, smartphone or PDA is in communication, whose corresponding radio module with 38, flat screen with 40 and keyboard with 42 are designated.
  • a mobile evaluation device 36 in the manner of a mobile phone, smartphone or PDA is in communication, whose corresponding radio module with 38, flat screen with 40 and keyboard with 42 are designated.
  • an evaluation device 36 a laptop in question.
  • the y- determined by the measuring and calculating circuit 30, referred to the sweet point 22 y- and z-coordinates of the accurately registered by the sensor 18 impact point of a golf ball together with the coordinates of the impact points of other ball strokes programmatically evaluated and graphed.
  • the sensor 18 has the structure shown in FIG. It consists of a by means of a double-sided adhesive sheet 46 fastened to the striking surface 16 support plate 48 and a outside of this arranged protective plate 50.
  • the support plate 48 may for example consist of glass fiber reinforced epoxy resin (preferably FR4 or FR5).
  • the protective plate 50 may be made of plastic (preferably polyester).
  • both sides adhesive film 46 come under the brand names Tesa, Herma or Scotch commercially available films in question, preferably the adhesive force on the side connected to the support plate 48 side of the adhesive film is slightly larger than on the side to be joined with the impact surface 16.
  • the carrier plate 48 and the protective plate 50 are each provided with an electrically conductive layer 52 and 54, respectively.
  • These may be semiconductor layers according to US Pat. No. 6,239,790 Bl, which have a certain linear electrical resistance.
  • spacers 56 are arranged in sufficient size and distribution, which ensure that the conductive layers 52, 54 only come into contact with each other, when the flexible protective plate 50 regional or punctual, such as For example, in a blow to a golf ball, a sufficient pressure is applied.
  • the protective plate 50 is firmly bonded in the edge region with the support plate 48, but at least one not shown ventilation and venting remains free, the manner of a Labyrinthdichtung is designed so that the sensor 18 dust and splash-proof to IP54.
  • the support plate 48 is provided on its inside with two other printed conductors extending longitudinally opposite edge regions at right angles to the first-mentioned interconnects and contact in the assembled state over its length, the electrically conductive layer 54 on the protective plate 50.
  • the tracks electrically connected to the conductive layer 54 could also be printed on the guard plate 50.
  • Each of the 4 tracks is connected to the measurement and calculation circuit 30 via a signal line continuing in the cable 26.
  • the flexible protective plate 50 is pressed in a position so far that the conductive layer 54 contacts the other conductive layer 52 on the support plate 48, after applying a certain reference voltage to the conductor tracks connected to one of the two layers between the In each case, a voltage is measured which is proportional to a change in the distances of the impingement point from the interconnects connected to the reference voltage, so that the y and z coordinates can also be determined after a calibration.
  • the distances of a contact pressure point from the perpendicularly oriented conductor paths are calculated on the basis of the time required for the current to reach certain printed circuit traces. to charge connected capacitors.
  • a longer path of the current through one of the conductive layers is tantamount to a greater resistance, ie a lower current intensity and thus a longer period of time for charging the capacitor in question.
  • the resistance between a trace of the layer 52 and a trace of the layer 54 is infinite because of the spacers 56. If there is a sufficiently strong pressure on the protective plate 50 at certain points, the two layers 52, 54 form the resistance network shown in FIG.
  • a defined reference voltage V Ref is applied alternately between Y1 and Yr during the pressure and at the same time the voltage drop is measured with high resistance at one end of the other layer. The measured voltages between Zu and Yr
  • Vz Vref x (Rzb + Rzu) / (Rzo + Rza + Rzb + Rzu) or between Yl and Zo
  • Vy Vref x (Rya + RyI) / (Ryl + Rya + Ryb + Ryr) are, as can be seen, proportional to the position of the impact point in the Z and Y directions on the sensor surface.
  • the measurements are carried out continuously with a suitable sampling frequency of IkHz to 4 kHz, preferably 2 kHz, in order to be able to reliably determine the position of a point of impact during the pressure duration in both coordinate directions.
  • a suitable sampling frequency IkHz to 4 kHz, preferably 2 kHz, in order to be able to reliably determine the position of a point of impact during the pressure duration in both coordinate directions.
  • the time of impact of the golf ball and the pressure duration can be determined by the fact that valid measured values can be distinguished from 0 volt by the constant terminal resistances RyI, Ryr, Rzo and Rzu.
  • the voltages that can be measured when the pressure is triggered lie between for the z axis
  • the sampling takes place with 8 bits to 12 bits, preferably with 10 bits.
  • the essential parts of the measuring and calculating circuit 30 are shown. They are mounted in the housing 28 on a circuit board 60 and interconnected in the usual way. Most important is a microcomputer labeled RAM of 62, FLASH memory, A / D converters, inputs and outputs (GPIOs) and serial interface, preferably UART and SPI.
  • the microcomputer 62 controls the application of the reference voltage to the signal lines connected to the electrically conductive layers 52, 54, registers the voltages and associated times measured during the measurement processes, and calculates the coordinates of the points of impact. These are buffered and forwarded via the radio module 34 with an antenna, preferably a ceramic antenna 35, to the evaluation device 36.
  • the power supply is a battery 64, the charge controller is shown at 66.
  • the charging takes place via a socket 68, preferably a mini-B type USB socket or a 2.5 mm jack socket. About this socket and the microcomputer 62 can be reprogrammed.
  • FIG. 5 shows a quick-fastening mechanism for releasably attaching the housing 28 of the measuring and calculating circuit 30 to the shaft 12 of the golf club, preferably according to FIG. 1 on the club head 10 or on the side of the shaft 12 opposite the striking surface 16.
  • the housing 28 is fluted on the side adjacent to the shaft 12 with a diameter slightly larger than the shaft diameter.
  • a rubber insert 70 is used, which can also be glued to the housing 28 and can help to make the housing dustproof and splash-proof to IP54.
  • the connection of the housing with the shaft 12 by means of a flexible plastic strap or a strap 72, z.
  • a textile tape which can be rubberized on the inside.
  • tension band 72 is fixed to a fixedly connected to the housing 28 deflection pin 74.
  • deflection pin 74 On the opposite side of the deflecting pin of the housing 28 that is around the Shank 12 laid tension band connected to a clamping or locking lever 76 which engages in a recess 78 of the housing 28 and the clamping band 72 biases in its closing movement.
  • a clamping or locking lever 76 On the opposite side of the deflecting pin of the housing 28 that is around the Shank 12 laid tension band connected to a clamping or locking lever 76 which engages in a recess 78 of the housing 28 and the clamping band 72 biases in its closing movement.
  • hooks on at least one side of the housing 28 are hooked into the guided around the opposite side of the shaft 12 clamping rubbers.
  • the evaluation unit 36 operates in the master mode in order, if necessary, to receive, store and evaluate the measurement data of a plurality of measurement and calculation circuits 30, which are each transmitted to the evaluation device 36 by means of Bluetooth via a suitable transmission protocol, preferably SPP or HDI and to visualize. In this way, for. B. Two or four players directly compare their evaluated data in a common graph.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Golf Clubs (AREA)

Abstract

Le dispositif sert au contrôle de la précision avec laquelle la surface de frappe (16) d'un club de golf frappe une balle de golf. Le dispositif comporte un capteur plat (18) se fixant sur la surface de frappe (16) et au moyen duquel il est possible de localiser le point d'impact. Ce capteur (18) est relié à un circuit de mesure et de calcul (30) qui se fixe amovible sur le manche (12) ou sur la face postérieure de la tête du club de golf, et qui est monté dans un boîtier (28) conjointement avec une source de tension électrique, le circuit effectuant à chaque frappe une procédure de mesure destinée à déterminer les coordonnées du point d'impact par rapport à la position d'un point de référence (22) prédéfini. Un module radio (34) relié au circuit de mesure et de calcul (30) transmet les résultats de mesure à un appareil d'évaluation (36) ressemblant à un téléphone portable ou analogue permettant l'évaluation commandée par ordinateur et l'affichage des résultats de mesure sur un écran (40).
PCT/EP2007/007646 2007-09-01 2007-09-01 Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf WO2009026951A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07802063.3A EP2183036B1 (fr) 2007-09-01 2007-09-01 Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf
CA2696881A CA2696881A1 (fr) 2007-09-01 2007-09-01 Dispositif et procede de controle de la precision de la frappe d'un club de golf
KR1020107007063A KR20100061710A (ko) 2007-09-01 2007-09-01 골프 클럽의 타격 정확성을 제어하기 위한 장치 및 방법
PCT/EP2007/007646 WO2009026951A1 (fr) 2007-09-01 2007-09-01 Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf
US12/675,860 US20100222152A1 (en) 2007-09-01 2007-09-01 Apparatus and method for controlling the hitting accuracy in the case of a golf club
JP2010522192A JP2010536514A (ja) 2007-09-01 2007-09-01 ゴルフクラブの打撃精度制御装置と方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/007646 WO2009026951A1 (fr) 2007-09-01 2007-09-01 Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf

Publications (1)

Publication Number Publication Date
WO2009026951A1 true WO2009026951A1 (fr) 2009-03-05

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PCT/EP2007/007646 WO2009026951A1 (fr) 2007-09-01 2007-09-01 Dispositif et procédé de contrôle de la précision de la frappe d'un club de golf

Country Status (6)

Country Link
US (1) US20100222152A1 (fr)
EP (1) EP2183036B1 (fr)
JP (1) JP2010536514A (fr)
KR (1) KR20100061710A (fr)
CA (1) CA2696881A1 (fr)
WO (1) WO2009026951A1 (fr)

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WO2011032573A1 (fr) * 2009-09-19 2011-03-24 Richard Jaekel Procédé pour produire un bruit guidant un golfeur lorsqu'il frappe une balle de golf
CN101660902B (zh) * 2009-09-18 2011-12-21 深圳市山龙电控设备有限公司 球头击球面撞击点检测装置
US20210258032A1 (en) * 2017-12-21 2021-08-19 Casefax Inc. Device and method of verifying protective case usage

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US20100222152A1 (en) 2010-09-02
CA2696881A1 (fr) 2009-03-05

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