US20090075761A1 - Golf gps device and system - Google Patents

Golf gps device and system Download PDF

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Publication number
US20090075761A1
US20090075761A1 US11/856,720 US85672007A US2009075761A1 US 20090075761 A1 US20090075761 A1 US 20090075761A1 US 85672007 A US85672007 A US 85672007A US 2009075761 A1 US2009075761 A1 US 2009075761A1
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Prior art keywords
golf
display
gps device
gps
distance
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Abandoned
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US11/856,720
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English (en)
Inventor
Joseph Balardeta
Scott Denton
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Topgolf Callaway Brands Corp
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Individual
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Priority to US11/856,720 priority Critical patent/US20090075761A1/en
Assigned to UPLAY, LLC reassignment UPLAY, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BALARDETA, JOSEPH, DENTON, SCOTT
Priority to US12/133,361 priority patent/US8070628B2/en
Priority to PCT/US2008/076482 priority patent/WO2009039073A1/en
Priority to CN2008801168835A priority patent/CN101952687A/zh
Priority to DE112008002532T priority patent/DE112008002532T5/de
Priority to GB1006455.8A priority patent/GB2466168B/en
Priority to JP2010525077A priority patent/JP2010538764A/ja
Priority to AU2008302484A priority patent/AU2008302484A1/en
Assigned to CALLAWAY GOLF COMPANY reassignment CALLAWAY GOLF COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UPLAY, LLC
Publication of US20090075761A1 publication Critical patent/US20090075761A1/en
Abandoned legal-status Critical Current

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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
    • A63B57/00—Golfing accessories
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G01S19/19—Sporting applications
    • 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
    • A63B2071/0638—Displaying moving images of recorded environment, e.g. virtual environment
    • 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
    • A63B2071/0675—Input for modifying training controls during workout
    • A63B2071/068—Input by voice recognition
    • 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
    • A63B2071/0691—Maps, e.g. yardage maps or electronic maps
    • 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
    • A63B2102/32—Golf
    • 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
    • A63B2220/12—Absolute positions, e.g. by using GPS
    • 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
    • A63B2220/14—Geo-tagging, e.g. for correlating route or track location data with specific information related to that specific location
    • 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
    • A63B2220/20—Distances or displacements
    • 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 field of the invention generally relates to electronic devices which utilize the global positioning system (“GPS”) to determine locations and distances, and more particularly to a GPS device for determining distances to features on a golf course, and displaying the distances to features, golf course images, and/or other golf related data.
  • GPS global positioning system
  • the invention also relates to systems and methods for supporting such a GPS device.
  • GPS devices both handheld and golf cart-mounted, have been previously disclosed and described in the prior art.
  • these devices comprise a GPS receiver and processing electronics (the “GPS system”), a display such as a liquid crystal display (“LCD”) or cathode ray tube (“CRT”), and a user input device such as a keypad.
  • GPS system GPS receiver and processing electronics
  • LCD liquid crystal display
  • CRT cathode ray tube
  • user input device such as a keypad.
  • Golf course data is input and stored in the golf GPS device, including for example, the coordinates for locations of greens, bunkers and/or other course features.
  • These types of devices use the GPS system to determine the location of the device. Then, the device calculates and displays the distances to the various golf course features, such as the distance to the front, middle and back of the green, or the distance to a bunker or water hazard.
  • the device can relatively easily and accurately provide the golfer with important distance information usable while playing golf.
  • the distance information is used by the golfer to formulate strategy for playing a hole (sometimes called “course management”) and for club selection.
  • U.S. Pat. No. 5,507,485 (“the '485 patent”), which is hereby incorporated by reference herein in its entirety, purports to disclose a golf GPS device which can display depictions of a golf hole including multiple, selectable views of each hole such as the approach to the green and the green itself.
  • the '485 patent describes that the device is configured to automatically determine the location of the device using a GPS receiver and then automatically display the golf hole view that would be of immediate interest to the golfer.
  • the '485 patent discloses that the distance to displayed features may be indicated on the display, there is no description of how or where such information is displayed.
  • the device may include other features such as means for receiving climate (i.e. temperature and humidity) and weather (i.e. wind speed and direction) conditions, means for recording and computing scores, bets and handicaps, means for recording details of a golf game sufficient to later replay and analyze a round of golf, means for suggesting shot and club selections to the golfer, clubs used and distances obtained for shots, and means for updating daily tee and hole positions on a removable integrated circuit (“IC”) card.
  • IC integrated circuit
  • the '485 patent does not describe how the course data is generated, or how daily tee and hole positions are determined.
  • the means for updating and supplying course data through removable IC cards which are programmed on a host computer and then inserted into the golf computer is clumsy and inconvenient.
  • the '485 patent only describes a cart-based golf computer, and although the '485 patent suggests that portions of the device (the display and input means) could be implemented on a handheld unit such as the Apple Computer Company's NEWTONTM, there is no enabling disclosure of a fully integrated, standalone, handheld golf GPS device.
  • U.S. Pat. No. 6,456,938 (“the '938 patent”), which is hereby incorporated by reference herein in its entirety, describes a handheld golf GPS device.
  • the handheld device is described as software executed on a palm-held computer (PC) saddled into and connected directly to a dGPS (differential global positioning system or differential GPS) receiver.
  • the handheld device of the '938 patent has a modular construction comprising a dGPS receiver module which receives and accommodates a display module.
  • the display module is described as being any of a variety of handheld, multifunctional computing devices having a display screen and a processor running an operating system. Suitable display modules disclosed include Personal Data Assistants (PDAs), such as a Pocket PC, PalmTM PDA, or similar palm held computing device.
  • PDAs Personal Data Assistants
  • the screen is split into two distinct sections, a course display section for displaying a graphic representation of an area of a golf course, and a separate data and menu display section for displaying touch sensitive menu buttons and data (including distances).
  • a course display section for displaying a graphic representation of an area of a golf course
  • a separate data and menu display section for displaying touch sensitive menu buttons and data (including distances).
  • the majority of the screen includes the first section, and a thin, left column of the screen shows a vertical menu column of touch sensitive menu buttons and data, such as distances.
  • the '938 patent also describes that the handheld golf GPS device could be constructed so that the modules are integrated into one unit, but does not describe the construction of such an “integrated” unit in any detail.
  • the '938 patent describes various functionality of the handheld golf GPS device, methods of creating golf course maps, and methods of distributing the golf course maps to the handheld golf GPS devices.
  • course data is first loaded onto the device. This may be accomplished by mapping the course using the device and using that course data file, as discussed below, or by connecting the device to a personal computer (PC) or directly to an internet connection and downloading the course data file onto the device.
  • PC personal computer
  • There is a setup menu for setting player preferences such as: club selection and data gathering; lie and stroke tracking enabled/disabled; marking of green strokes; and setting the green reference point, system units, and course, tee and starting hole selections.
  • the device displays a graphical (icon) representation of the selected hole, and certain distances to features whose locations are pre-stored in the course data file is displayed only in the data and menu section of the display. For example, the distance to the center of the green may be displayed in one of the boxes in the data and menu section of the display.
  • the graphical representation includes simple icons for various features to be shown on the display, as shown in FIG. 29 of the '938 patent. At any time, the location of the device is determined using the dGPS receiver.
  • the device of the '938 patent also includes a club selection feature, in which the average distance for the player's clubs is displayed for each shot during play.
  • the device also includes features for distance measuring from the location of the device to a target marked on the display by the user.
  • Another described feature of the device is a shot tracking method which allows the user to store the location of each shot and the club used for the stroke at such location.
  • display functions such as pan and zoom, score keeping, statistics tracking, and the ability to upload game shot data to a web site or PC and then view a replay of a round with the speed of replay being adjustable.
  • the golf course data is loaded into the Skycaddie device.
  • the golf course data is generated by mapping each course on the ground using GPS and survey equipment.
  • the database of golf course data is accessible through the internet on Skycaddie's website.
  • the golf course data is downloaded onto a PC and then may be loaded onto the Skycaddie device by connecting the device to the PC.
  • the Skycaddie devices allow a user to map a course, or additional course features, in the event a course or feature of interest is not included in the Skygolf database.
  • the Skycaddie devices use a GPS receiver to determine the geographic location of the device. Using the GPS determined location of the device and the golf course data, the Skycaddie devices display distance data such as the front, center and back of green. Certain models of the Skycaddie devices may also display the distance to features such as bunkers and water hazards whose locations have been pre-stored in the golf course data.
  • Certain models of the Skycaddies may also display an outline of the green for a selected hole with the distances to the front, center and back of green displayed to the side of the displayed outline. Some models also display an icon representation of certain features, such as a creek, bunker or green, in one section of the display and the distances to such features in a different section of the display next to the icons.
  • the Skycaddie devices can only measure distance to locations which are not pre-stored in the course data by marking a starting location and then moving the device to the measured location and marking the ending location. The device will then display the distance between the two locations. However, this requires walking all the way to the measured location.
  • the Skycaddie devices are configured to automatically advance to the next hole of play based on the location of the device.
  • the present invention comprises a portable golf GPS device and system which is simple, accurate, and easy to use, yet provides excellent functionality and features in a compact, lightweight form factor.
  • the portable golf GPS device of the present invention generally comprises a microprocessor operably coupled to a GPS unit, an input device such as a keypad (or touch screen) operably coupled to the microprocessor, and a display such as a liquid crystal display (“LCD”) operably coupled to the microprocessor.
  • a program memory system which contains at least some of the software and data to operate the device is also operably coupled to the microprocessor.
  • the device also comprises various firmware and software configured to control the operation of the device and provide the device functionality as described in more detail below.
  • data utilized by the device such as golf course data and images, may be stored in the program memory or other memory module such as Secure Digital memory card (“SD Card”), USB based memory devices, other types of flash memory, or the like.
  • SD Card Secure Digital memory card
  • USB based memory devices other types of flash memory, or the like.
  • the golf GPS device of the present invention is self-contained, compact and lightweight.
  • the device is preferably battery operated.
  • the portable golf GPS device is preferably contained in a housing such that the entire device has a very compact and lightweight form factor, and is preferably handheld and small enough to fit comfortably in a pocket of a user's clothing.
  • the entire golf GPS device may be 4 inches long (4′′), by 2 inches wide (2′′), by 0.6 inches thick (0.6′′), or smaller in any one or more of the dimensions.
  • the entire golf GPS device may weigh 3.5 ounces or less, including the battery.
  • the microprocessor may be any suitable processor, such as one of the MX line of processors available from Freescale Semiconductor or other ARM based microprocessor.
  • the GPS unit may be any suitable GPS microchip or chipset, such as the NJ1030/NJ1006 GPS chipset available from Nemerix, Inc.
  • the LCD is preferably a high resolution (e.g. 320 pixels by 240 pixels, QVGA or higher resolution), full color LCD, having a size of about 2.2′′ diagonal.
  • the program memory may include one or more electronic memory devices on the golf GPS device.
  • the program memory may include some memory contained on the microprocessor, memory in a non-volatile memory storage device such as flash memory, EPROM, or EEPROM, memory on a hard disk drive (“hdd”), SD Card(s), USB based memory devices, other types of flash memory, or other suitable storage device.
  • the program memory stores at least some of the software configured to control the operation of the device and provide the functionality of the golf GPS device.
  • the components of the portable golf GPS device are preferably assembled onto a PCB, along with various other electronic components used to control and distribute the battery power, thereby providing the electronic connections and operability for a functional electronic device.
  • the hardware and software of the portable golf GPS device are configured to determine, track, and display useful golf related information, before, during and after a round of golf.
  • the GPS device is configured to store golf course data for a particular golf course of interest which is loaded onto the GPS device in any suitable manner.
  • the golf course data includes geographic location coordinates for various golf course features, such as bunkers, greens, water hazards, tees, and the like.
  • the golf course data may also include golf hole data such a par, handicap, daily tee and hole locations, etc.
  • the golf course data may include photographic course images, such as satellite or aerial photographs and/or video images.
  • Play Golf mode The use of the GPS device during play of a round of golf is referred to herein as “Play Golf” mode.
  • the basic functionality of the device is as follows. First, the golf course being played is selected on the GPS device, for example, from a list of courses displayed on the display. Then, the user should locate the GPS device at a location of play (e.g. the location of the user's ball, or a tee box). The GPS device determines the location of the device, and then displays various golf hole information on the display. For example, the device may display the number of the particular golf hole being played, par for the hole, the length of the hole, and the handicap of the hole.
  • the device may also display information regarding the distance to various features of the golf hole being played and an identification of the type of feature.
  • the display may show the front and carry distance of bunkers, the front, middle and back of the green, the front and carry distance of water hazards, and the like.
  • the GPS device is configured to display the golf hole information in two distinct operating modes.
  • a first mode also referred to herein as the Basic Mode
  • the distances and features are displayed in a text and/or icon format. This may be accomplished by simply displaying a list of features and respective distance(s) for each feature, such as “Right Fairway Bunker . . . 245-275” or an icon representing a fairway bunker next to the distance “ . . . 245-275.” This would indicate that there is a fairway bunker on the right, and is 245 yards to reach the bunker and 275 yards to carry the bunker.
  • a second mode also referred to herein as the Pro Mode
  • the distances and features are shown on the display on a graphical image of a relevant area (also referred to as a “viewport”) of the golf course.
  • the graphical image is preferably a photographic image generated from geo-referenced (e.g. coordinates are available for any location on the image) satellite or aerial digital photographs, or geo-referenced generated images.
  • geo-referenced e.g. coordinates are available for any location on the image
  • the distances are overlaid onto the image.
  • a distance marker such as a red dot or other small but easily viewable symbol, is placed on the feature at the exact point of measurement, and the distance number is displayed in the vicinity of the marker.
  • the device is configured such that it can toggle back and forth between the Pro Mode display and the Basic Mode display.
  • the Basic Mode course data may be displayed.
  • a feature may be selected, such as by scrolling through the list of features, and the user may select to view the Pro Mode display of such feature simply by selecting the feature from the list and selecting the Pro Mode.
  • This feature would only be available if the Pro Mode course data has been loaded onto the device.
  • the golf course data set required to operate the device in the Pro Mode and the Basic Mode is the same, except that the Pro Mode data set includes the graphical images of the golf course. This simplifies the creation of the course databases because creation of the Pro Mode data set also creates the Basic Mode data set.
  • the device includes an innovative automatic, dynamic, viewport generation method for optimizing the viewability of the distance and feature images in the Pro Mode.
  • the viewport generation may include one or more of several methods to determine the displayed viewport.
  • the viewport generation method may include a method of determining the location and scale of the image of the golf course to be displayed based on the location of the device (and therefore the location of play) and the characteristics of the golf hole.
  • the method of viewport generation method may display a section of the golf hole that will be most relevant to the golfer from the current location, which may be a yardage range such as the next 150 to 250 yards of the golf hole. The method will automatically scale (i.e.
  • the viewport generation method may display the rest of the hole at a maximum zoom level that can fit the rest of the hole on the display.
  • the distances displayed may be adjusted to avoid overlapping. This method may also be referred to as collision management.
  • This method may also be referred to as collision management.
  • zoom levels for example very low zoom levels, many features as displayed on the display may be very close together such that if all of the distances to these features are displayed the numbers will overlap and the readability of the information will be compromised. To avoid this, the method will not display some of the distances so as to avoid any overlapping distances.
  • the GPS device is configured to provide panning and zooming of the displayed graphical images of the golf course with the distance overlays.
  • the device when viewing any Pro Mode graphical display with distances overlaid onto features, the device is configured so that the user can pan the image to display the golf course outside the original viewport, and the distances remain overlaid at the correct locations next to their respective features.
  • the distances when zooming in or out from a particular viewport, the distances again remain overlaid at the correct locations next to their respective features (or feature marker).
  • the font size of the distances may be constant or set to display at a minimum font size, and the collision management methods described above may also be utilized.
  • the golf GPS device is configured to allow the measurement of the distance between locations on the golf course using the images displayed on the display. This is a useful feature which is enabled by the use and display of the actual photographic images of the golf course, and is very simple to use. For example, to measure the distance between the current location of the device and another location of interest as displayed on the display, the user simply selects the measurement mode, moves a cursor displayed on the display to the location of interest and then selects the location of interest. The device is configured to determine and display the distance between the coordinates of the current location of the device and the location of interest. In a similar manner, the device may also be configured to measure the distance between two locations of interest selected on display.
  • pan and zoom functions may be utilized automatically or manually during the measurement mode in order to select a location of interest.
  • the image will pan to display a portion of the image that was previously outside the viewing area.
  • the device is configured to perform an innovative calibration method. Like the measurement mode, this feature is enabled by the use and display of the actual photographic images of the golf course. To utilize this feature, the user locates a physical feature at the golf course which can also be fairly accurately identified and located on a graphical image of the same physical feature shown on the display of the GPS device.
  • good features for this calibration method are a cart path intersection, a distinctive shape of a bunker, a manhole cover, or a permanent tee marker.
  • the device is then placed at the physical feature, and then the user places a cursor shown on the display of the device onto the image of the same physical feature.
  • the image of the feature may be zoomed in to a high zoom level or even the maximum zoom level.
  • the device is configured to determine the offset between the apparent location measured by the GPS device and the location of the physical feature on the displayed image. The resultant offset may then be used to correct all future GPS readings.
  • the positional errors in GPS due to pseudo-range errors in the GPS satellite system and environmental conditions are approximately equal within the period of time of a round of golf and over the area of a single golf course.
  • a single calibration during a round of golf will usually be sufficient to account for inaccuracies due to environmental conditions and pseudo-range errors of GPS satellite system.
  • multiple calibrations during a single round of golf may be accomplished, if desired.
  • the GPS golf device of the present invention may also be configured to present a pre-round preview of a golf course, including a display of each hypothetical shot and/or suggested strategy. This allows the user to get a visual experience and strategize the course prior to playing.
  • the device may be configured to track each shot during a round of golf, including the club used for each shot and other shot information (such as quality and condition of lie, degree of swing such as full shot, half shot, etc., quality of contact, ball flight, etc.).
  • the device may also be configured to play back a round of golf which was tracked using the device, and/or download the tracked round to a computer or other device for playback and/or analysis.
  • the golf GPS device may include voice recognition/navigation.
  • the golf GPS device may be configured to allow a user to enter information using vocal inputs, such as shot information and scores.
  • the voice recognition feature may also be used to audibly enter commands, such as switching between Basic Mode and Pro Mode, navigating through the devices menus, changing the settings, or any other command within the devices menus.
  • Voice recognition facilitates the use of more advanced features, such as shot tracking, by reducing the amount of inputs that must be made using the input device. As an example, when entering a club selection for shot tracking, instead of having to scroll through a list of clubs, the user need only say “seven iron” or “driver.”
  • FIG. 1 is a schematic block diagram of a golf GPS device according to one embodiment of the present invention.
  • FIG. 2 is a four view showing the front, left side, right side, top and bottom of a golf GPS device according to one embodiment of the present invention.
  • FIG. 3 is front, elevational view of a GPS device with a Main Menu displayed on the display according to one embodiment of the present invention.
  • FIG. 4 is front, elevational view of a GPS device with a Golf Menu displayed on the display according to one embodiment of the present invention.
  • FIG. 5 is front, elevational view of a GPS device with golf hole information displayed on the display according to one embodiment of the present invention.
  • FIG. 6 is front, elevational view of a GPS device with a Hazard view in Basic Mode displayed on the display according to one embodiment of the present invention.
  • FIG. 7 is front, elevational view of a GPS device with a Pro Mode view displayed on the display according to one embodiment of the present invention.
  • FIG. 8 is front, elevational view of a GPS device with another Pro Mode view displayed on the display according to one embodiment of the present invention.
  • FIG. 9 is front, elevational view of a GPS device with a zoomed in Pro Mode view displayed on the display according to one embodiment of the present invention.
  • FIG. 10 is front, elevational view of a GPS device in a Measure mode displayed on the display according to one embodiment of the present invention.
  • FIG. 11 is front, elevational view of a GPS device with another aspect of the Measure mode displayed on the display according to one embodiment of the present invention.
  • the golf GPS device 10 comprises a microprocessor 12 which is operably coupled to a GPS chipset 14 , a user input device 16 , an LCD display 18 ; a program memory 20 , a voice recognition module 22 , an audio output 24 , a data transfer interface 26 , and a battery and power management unit 28 .
  • the device 10 also comprises other electronic components, such as passive electronics and other electronics configured to produce a fully functional GPS device as described herein.
  • the device 10 comprises various firmware and software configured to control the operation of the device 10 and provide the device functionality as described in more detail below.
  • the microprocessor 12 is preferably an ARM based microprocessor, such as one of the MX line of processors available from Freescale Semiconductor, but may be any other suitable processor.
  • the microprocessor 12 executes instructions retrieved from the program memory 20 , receives and transmits data, and generally manages the overall operation of the GPS device 10 .
  • the GPS chipset 14 is preferably an integrated circuit based GPS chipset which includes a receiver and microcontroller.
  • the GPS chipset may be a single, integrated microchip, or multiple microchips such as a processor and a separate receiver which are operably coupled to each other (for example, on a printed circuit board (“PCB”)).
  • PCB printed circuit board
  • the GPS chipset 14 may be a NJ 1030 GPS chipset available from Nemerix, Inc., or any other suitable GPS chipset or microchip.
  • the GPS chipset includes a GPS receiver, associated integrated circuit(s), firmware and/or software to control the operation of the microchip, and may also include one or more correction signal receiver(s) (alternatively, the correction signal receiver(s) may be integrated into a single receiver along with the GPS receiver).
  • the GPS unit 14 receives signals from GPS satellites and/or other signals such as correction signals, and calculates the positional coordinates of the GPS unit 14 .
  • the GPS device 10 utilizes this positional data to calculate and display distances to features or selected locations on a golf course, as described in more detail below.
  • the display 18 may be any suitable graphic display, but is preferably a high resolution (e.g. 320 pixels by 240 pixels, QVGA or higher resolution), full color LCD.
  • the display 18 is preferably the largest size display that can be fit into the form factor of the overall device 10 , and preferably has a diagonal screen dimension of between about 1.5 inches and 4 inches.
  • the display may be a 2.2′′ diagonal, QVGA, full color LCD.
  • the display 18 since the display 18 is intended to be used outside under sunlit conditions, the display 18 should provide good visibility under brightly lit conditions, such as with a transflective LCD.
  • the program memory 20 stores at least some of the software and data used to control and operate the device 10 .
  • the program memory 20 may store the operating system (such as LINUX or Windows CE), the application software (which provides the specific functionality of the device 10 , as described below), and the golf course data.
  • the program memory 20 broadly includes all of the memory of the device 10 , including memory contained on the microprocessor, memory in a non-volatile memory storage device such as flash memory, EPROM, or EEPROM, memory on a hard disk drive (“hdd”), SD Card(s), USB based memory devices, other types of flash memory, or other suitable storage device, including one or more electronic memory devices on the golf GPS device, including an additional removable memory unit 30 .
  • the user input device 16 may comprise a plurality of buttons, a touch screen, a keypad, or any other suitable user interface which allows a user to select functions and move a cursor.
  • an example of a user input device comprises a directional pad 16 a and plurality of buttons 16 b , 16 c , 16 d , 16 e and 16 f .
  • the device 10 is configured such that directional pad 16 a may be used to move a cursor around the display, while the buttons 16 b - 16 f may be used to make selections and/or activate functions such as activating the voice recognition or switching between modes (as described in more detail below).
  • the golf GPS device 10 is preferably battery powered by a battery and power management unit 28 .
  • the battery may be any suitable battery, including one or more non-rechargeable batteries or rechargeable batteries.
  • a rechargeable, lithium-ion battery would work quite well in this application, as it provides relatively long life on a single charge, it is compact, and it can be re-charged many times before it fails or loses significant capacity.
  • the power management unit controls and distributes the battery power to the other components of the device 10 , controls battery charging, and may provide an output representing the battery life.
  • the power management unit may be a separate integrated circuit and firmware, or it may be integrated with the microprocessor 12 , or other of the electronic components of the device 10 .
  • the voice recognition unit 22 comprises electronics and software (the term “software” as used herein shall mean either software or firmware, or any combination of both software and firmware) configured to receive voice or other sounds and convert them into software commands and/or inputs usable by the main application software.
  • the voice recognition unit 22 may comprise a separate integrated circuit, electronics and/or software, or it may be integrated into the main microprocessor 12 .
  • the voice recognition unit 22 includes a microphone 32 .
  • the voice recognition unit 22 is configured to detect voice and/or other sound inputs from a user of the device 10 , and convert the sound inputs into electrical signals. The voice recognition unit 22 then digitizes the analog electrical signals and computes a command or other input representative of the digitized signal.
  • a command for switching between Pro Mode and Basic Mode may be input using the voice recognition unit 22 by speaking the term “Pro Mode” or “Basic Mode” into the microphone 32 .
  • the main application software must also be configured to receive the inputs from the voice recognition unit 22 .
  • the hardware and software for the voice recognition unit are relatively complex, but packaged solutions are available, such as the products available from Texas Instruments, Inc. or Wolfson Micro, Inc.
  • the audio output 24 comprises electronics and software to convert digital signals from the device into electrical signals for driving a speaker or headphones.
  • the audio output 24 typically includes a digital-to-analog converter, a power amplifier, and may also include software for converting information or data into audible sounds.
  • the audio output 26 may be configured to convert distances measured by the audio output 24 may comprise a phone jack 34 (also shown in FIG. 2 ) and/or a speaker 36 .
  • device 10 into an audibly replicated voice of the distance in words, such as “one-hundred fifty.” Additionally, the device 10 may be configured to also play digital music files (such as MP3 audio files) or digital video files (such as MPEG files), with the audio being output using the audio output 24 .
  • digital music files such as MP3 audio files
  • digital video files such as MPEG files
  • the voice recognition unit 22 and audio output 24 may be integrated together into a software and hardware unit.
  • integrated products are available from Texas Instruments, Inc. and Wolfson Micro, Inc.
  • the data transfer interface 26 is configured to send and receive data from a computer or other electronic device (e.g. another golf GPS device 10 ).
  • the interface 26 may be a physical connection such as a USB connection, a radio frequency connection such as Wi-Fi, wireless USB, or Bluetooth, an infra-red optical link, or any other suitable interface which can exchange electronic data between the GPS device 10 and another electronic device.
  • the interface 26 comprises a USB connection having a USB connector 26 a.
  • the electronic components of the golf GPS device 10 are preferably assembled onto a PCB, along with various other electronic components and mechanical interfaces (such as buttons for the user input device 16 ), thereby providing the electronic connections and operability for a functional electronic GPS device 10 .
  • the golf GPS device 10 preferably comprises a housing 40 which houses the electronic components such that the entire device has a very compact, thin, and lightweight form factor.
  • the housing 40 may be formed of any suitable material, but is preferably a plastic material which is substantially transparent to radio frequency signals from GPS satellites. Indeed, the golf GPS device is preferably handheld and small enough to fit comfortably in a pocket of a user's clothing.
  • the GPS device 10 may have the following dimensions: a height 44 of about 4 inches or less, a width 46 of 1.9 inches or less and a thickness 42 of 0.6 inches or less. More preferably, the height 44 is 3.9 inches or less, the width 46 is 1.8 inches or less, and the thickness 42 is 0.55 inches or less.
  • the entire golf GPS device 10 may weigh about 3.5 ounces or less, including the battery 28 .
  • An application software program is stored in the program memory 12 .
  • the application software program is configured to operate with the microprocessor 12 and the other electronic components to provide the golf GPS device 10 with the functionality as described herein.
  • the hardware and software of the portable golf GPS device 10 are configured to determine, track, and display useful golf related information, before, during and after a round of golf.
  • the GPS device 10 is configured to store golf course data for a particular golf course of interest which is loaded onto the GPS device 10 through the data transfer interface 26 .
  • the golf courses are mapped to create the golf course data using any suitable method, such as ground survey, or more preferably, by using geo-referenced satellite or aerial images.
  • the mapping process produces golf course data which can be used by the GPS device 10 to determine the coordinates of golf course features of interest, such as the greens, bunkers, hazards, tees, pin positions, other landmarks, and the like.
  • the perimeter of the golf course features will be mapped so that distance to the front and back of the feature may be determined.
  • the mapping process can be done quickly and easily by displaying the geo-referenced images of the golf course on a computer and then using a script (or other software) each feature of interest is traced (or a series of discrete points on the perimeter may be selected).
  • the captured data is then used to create a data set comprising the coordinates for a plurality of points on the perimeter of the feature, or a vector-map of the perimeter, or other data, which can be used to calculate the distance to such feature from the location of the GPS device 10 .
  • the golf course data preferably also includes golf hole data such as par, handicap, daily tee and hole locations, etc.
  • the golf course data may include geo-referenced photographic course images, such as satellite or aerial photographs and/or video images.
  • the golf course data package for operating the device 10 in the Pro Mode and the Basic Mode is substantially the same, except that the Pro Mode data package includes the graphical images of the golf course.
  • the golf course data related to the feature locations is exactly the same for both the Pro Mode and the Basic Mode, and the GPS device 10 is configured to utilize this data with or without the graphical images.
  • creation of the Pro Mode data package also creates the Basic Mode data set.
  • a “Main Menu” screen is displayed on the display 18 .
  • the “Main Menu” screen has two options, “Play Golf” or “Settings.”
  • the choices on the Main Menu screen can be selected by changing the highlighted option using the up and down arrows on the directional pad 16 a of the user input device 16 .
  • the button 16 b may function as an “Enter” key to make a selection. If a touch screen input device 16 is utilized, the user can simply touch the selection on the display 18 .
  • “Settings” will bring up a “Settings” menu which allows the user to set various device and player settings and preferences.
  • the “Settings” menu may allow the user to set such user preferences as system units (e.g. yards or meters), preferred display settings (e.g. text size, Pro Mode vs. Basic Mode, screen brightness and contrast), turning on/off functions (such as score keeping, voice recognition, shot tracking, etc.), and other device settings.
  • Selecting the “Play Golf” mode brings up a “Golf Menu” as shown in FIG. 4 for initializing the GPS device 10 for use during a round of golf.
  • the course being played may be selected by selecting “Select Course” which may bring up a list of courses currently stored on the device 10 .
  • the list of courses shown can be determined based on the location of the device as determined by the GPS device 10 , for example, a list of the two or three courses closest to the location of the device. Alternatively, the list can be generated as a simple alphabetical list, a list of favorites, or other suitable listing method.
  • the “Golf Menu” also allows the user to choose the starting hole, for instance, if a player is going to start on a hole other than the 1st hole, such as starting on the 10th hole (the “back nine”).
  • GPS device 10 determines the location of the device 10 using the GPS chipset 14 , and then displays various golf hole information on the display.
  • the GPS device 10 is configured to display the hole number 50 , the current time 52 (the device 10 may include a clock function which can be provided by the microprocessor 12 , the GPS chipset 14 , or other electronic device), the par for the hole 54 , a battery charge indicator 56 , and a GPS signal strength indicator 58 .
  • the GPS device 10 further calculates the distance between the determined location of the device 10 and the front, middle and back of the green and displays the distance to the front 60 , the middle 62 and the back 64 of the green. As the device 10 is moved, the location of the device 10 is continually updated, and the distances (such as the front 60 , middle 64 , and back 64 of green) displayed are updated accordingly.
  • the GPS device 10 may also be configured to display a video flyover of the hole being played using a satellite or aerial photographic images of the hole.
  • the GPS device 10 may be configured to automatically display the flyover when the device 10 detects that the GPS device 10 is approaching or has reached a particular hole, and/or the user can select to display the flyover using the menu-driven selections.
  • the golf GPS device 10 also may display the distances from the location of the device 10 to hazards and other features of interest as shown in FIG. 6 .
  • the user may select the “Hazard” selection on the display shown in FIG. 5 using the button 16 d to bring up the screen as shown in FIG. 6 .
  • the screen shown in FIG. 6 displays the “Hazard” information in what is referred to herein as “Basic Mode.”
  • Basic Mode displays the “Hazard” information in a list using icons or text and respective measured distances.
  • FIG. 6 shows an icon for a right fairway bunker 66 and the distance to the front side of the bunker is 248 yards and the distance to carry the bunker is 264 yards.
  • the screen shows that the distance to the left greenside bunker 68 is 455 yards to reach and 472 yards to carry.
  • the features can alternatively be displayed using text, such as “Right Fairway Bunker” or using an abbreviation such as RtFwyBnkr, or the like.
  • the GPS device 10 may be configured to display the golf hole information in two distinct operating modes.
  • the first mode is the Basic Mode which displays the distances and features in a text and/or icon format.
  • the second mode referred to herein as the Pro Mode
  • the distances and features are shown on the display on a graphical image of a relevant area (also referred to as a “viewport”) of the golf course. Examples of the Pro Mode showing the same information as the display shown in FIG. 6 are shown in FIGS. 7 and 8 .
  • the graphical image is preferably a photographic image generated from geo-referenced (e.g. coordinates are available for substantially any location on the image) satellite or aerial digital photographs, or geo-referenced, generated images.
  • the images of the features are displayed in the photographic image and the distances are overlaid onto the image.
  • a distance marker 70 such as a red dot or other small but easily viewable symbol, is placed on the feature at the exact point of measurement, and the distance number is displayed in close proximity to the marker 70 .
  • the right fairway bunker 66 is 248 yards to reach and 264 yards to carry. This is exactly the same distance information shown in the display depicted in FIG. 6 .
  • the left greenside bunker 68 is 455 yards to the front and 472 yards to the back.
  • the golf course data for both the Pro Mode and the Basic Mode is the same, except that the golf course images are required for the Pro Mode.
  • the device is configured such that it can toggle back and forth between the Pro Mode display and the Basic Mode display.
  • One of the buttons such as button 16 e or 16 f (see FIG. 2 ), may be set up to toggle between the Pro Mode and the Basic Mode.
  • only the Basic Mode course data has been loaded onto the device, only the Basic Mode information may be displayed.
  • a feature While viewing a list of features in Basic Mode, a feature may be selected, such as by scrolling through the list of features as shown in FIG. 6 , and the user may select to view the Pro Mode display of such feature simply by selecting the feature from the list and selecting the Pro Mode. Of course, this feature would only be available if the Pro Mode course data has been loaded onto the device.
  • the golf GPS device 10 may include a automatic, dynamic, viewport generation method.
  • the ability to miniaturize the size of the device 10 is in many ways limited by the size of the display 18 , the major tradeoff being the desire to maximize the size of the display 18 in order to be able to display as much information and images at an easily viewable scale, while at the same time keeping the overall size of the device 10 as small as possible.
  • Intelligent generation of the of the images and numbers being displayed can help to display the most relevant section of the golf hole being played with distances displayed at a font size that is easily readable.
  • the viewport generation may include one or more methods to determine the displayed viewport.
  • the viewport generation method may include a method of determining the location and scale of the image of the golf course to be displayed based on the location of the device (and therefore the location of play) and the characteristics of the golf hole.
  • the method of viewport generation method displays the section of the golf hole that will be most relevant to the golfer from the current location, which may be a yardage range such as the fairway which is between 150 and 250 yards from the current location.
  • FIG. 7 shows a viewport which might be displayed if the user is on the tee box of the displayed hole.
  • the viewport displays the fairway and area surrounding the fairway from about 200 yards to 375 yards from the tee.
  • the graphic image is automatically scaled (i.e. the zoom level is set) to display the relevant section of the hole so that it will fit on the display while maintaining viewability of relevant features (e.g. the bunkers) and distance to the fairway bunker. If the hole happens to be a par 3, or there is less than a certain distance (e.g. 250 yards) to the end of the hole, then the viewport generation method may display the rest of the hole at a maximum zoom level that can fit the rest of the hole on the display (see e.g. FIG. 8 ).
  • the distances displayed may be adjusted to avoid overlapping.
  • This method may also be referred to as collision management.
  • zoom levels for example very low zoom levels, many features as displayed on the display may be very close together such that if all of the distances to these features are displayed the numbers will overlap and the readability of the information will be compromised.
  • the method will not display some of the distances so as to avoid any overlapping distances.
  • the determination of the distances which will not be displayed, so as to avoid overlap may be determined based on a hierarchy of the features, a random determination, a predetermination contained in the course data, an algorithm which determines the most important distances, some other criteria, or a combination of these methods.
  • the method can be configured such that the user may select to display some or all of the non-displayed distances in which case the previously displayed distances which overlap these non-displayed distances are turned off.
  • This selection may be a toggle, so that the user can toggle back and forth between the distances displayed. If there are more than two distances which would conflict with each other if displayed simultaneously, this user selection can advance through each of the non-displayed distances until all of the distances can be displayed sequentially, while the other conflicting distances are turned off.
  • the GPS device 10 may also pan and zoom the displayed graphical images of the golf course with the distance overlays in Pro Mode.
  • FIG. 8 an example of a green view at a low zoom level is shown.
  • the device 10 is shown in “Zoom” mode which is indicated by the “Zoom/Pan” toggle selection at the bottom left corner of the display 18 .
  • zoom/Pan toggle selection at the bottom left corner of the display 18 .
  • To zoom “in” on the image being displayed the “up” arrow on the directional pad 16 a is pushed, as shown in FIG. 9 .
  • To zoom “out”, the “down” arrow on the directional pad 16 a is pushed.
  • the device 10 may be configured such that holding down the “up” or “down” arrow will continue to zoom “in” or “out,” respectively.
  • the button 16 d is pushed.
  • the user can pan the displayed image by pressing the desired direction of pan on the directional pad 16 a .
  • zooming or panning the distances again remain overlaid at the correct locations next to their respective features (or feature marker) and at the pre-set font size.
  • the golf GPS device 10 may also be configured to measure the distance between locations on the golf course using the images displayed on the display.
  • the “Meas” button 16 c is selected (see FIG. 9 ), to enter “Measure” mode as shown in FIG. 10 .
  • a cursor 70 (such as a “+”) and a marker 72 (such as the star shown in FIG. 10 ) will appear at the current location of the device 10 .
  • the marker 70 indicates the current location of the device 10
  • the cursor indicates the point being measured to.
  • the marker 70 and cursor 72 are at the same location, so the distance is displayed as “0”.
  • the directional pad is then used to move the cursor 72 to the location of interest.
  • the distance between the cursor 72 and the marker 70 is calculated and displayed.
  • the display may automatically pan (and/or zoom), as shown in FIG. 11 .
  • the desired distance will be displayed, as shown in the example of FIG. 11 .
  • the device 10 may also be configured to measure the distance between two locations of interest selected on display. The user simply selects the “Meas” mode.
  • the cursor 72 is then positioned at a first point of interest, the button 16 b is pushed to set the first point of interest, and then the cursor 72 is moved to a second point of interest.
  • the distance between selected first point of interest and the location of the cursor will be updated and displayed as the cursor is moved.
  • the distance between a first location for the device 10 and a second location of the device 10 may also be measured by simply entering the “Meas” mode and then moving the device 10 to a new location. As the device 10 is moved, the distance between the original location of the device 10 and the new location of the device 10 will be calculated and displayed.
  • the pan and zoom functions may be utilized automatically or manually during any of the above described measurement modes in order to select a location of interest. In other words, as the cursor reaches the edge of the viewing area, the image will pan (and/or zoom “out”) to display a portion of the image that was previously outside the viewing area.
  • the golf GPS device 10 also includes a calibration method which corrects for local errors in the GPS system. Because the golf course images utilized on the device 10 are accurately geo-referenced with global coordinates, every discernable feature on the golf course images is a potential calibration point. To perform the calibration, referring to FIG. 4 , the “Calibrate GPS” mode is selected. The use then locates a physical feature at the golf course which can also be fairly accurately identified and located on a graphical image of the same physical feature shown on the display of the GPS device 10 .
  • the calibration feature may be a cart path intersection, a distinctive shape of a bunker, a manhole cover, or a permanent tee marker.
  • the GPS device 10 is then placed at the physical feature, and then the user places a cursor shown on the display of the device onto the image of the same physical feature. It may be helpful to zoom in to a high zoom level or even the maximum zoom level of the physical feature to improve the precision of the location of the cursor.
  • the device 10 determines the offset between the apparent location measured by the GPS device 14 and the location of the physical feature on the displayed image. The resultant offset is then used to correct all the GPS readings for the round of golf.
  • the golf GPS device 10 of the present invention may also be configured to present a pre-round preview of a golf course.
  • the golf GPS device 10 allows the user the load a desired golf course and then navigate around the course, such as hole by hole.
  • the preview may include a display of each hypothetical shot which might be take for each hole and/or suggested strategy for playing each hole and/or shot.
  • the preview mode may display pre-loaded hypothetical shots which are automatically generated or contained within a golf course data package; or the preview mode may use distances typical of the user's club distances, or a distance as selected by the user for each shot, to perform a shot-by-shot preview.
  • a golf game may be implemented on the golf GPS device 10 , in which the user can play a game of golf on the desired golf course, similar to other golf video games like “Tiger Woods PGA Tour” or “Mario Golf”, in which the game will be played on the actual golf course images stored on the device 10 .
  • the golf GPS device 10 may be configured to track each shot taken by the user during a round of golf, including the club used for each shot and other shot information (such as quality and condition of lie, degree of swing such as full shot, half shot, etc., quality of contact, ball flight, etc.).
  • the device 10 is configured to receive an input of the shot information and store the shot information referenced to the location of the device 10 . With this stored information, the device 10 may also be configured to play back a round of golf which was tracked using the device, and/or download the tracked round to a computer or other device for playback and/or analysis.
  • the golf GPS device 10 may include voice recognition/navigation utilizing the voice recognition unit 22 .
  • the golf GPS device 10 may be configured to allow a user to enter shot information while using the shot tracking mode using vocal inputs, or to enter scores on each hole. For instance, when entering a club selection for shot tracking, the user simply enters the voice mode and speaks into the device, “seven iron” or “driver”, or whatever club is being used.
  • the voice recognition feature may also be used to audibly enter commands, such as switching between Basic Mode and Pro Mode, navigating through the devices menus, changing the settings, or any other command within the devices menus. Voice recognition facilitates the use of more advanced features, such as shot tracking, by reducing the amount of inputs that must be made using the input device.
  • the golf GPS device of the present invention may include any one or more of the features and functions described above, or any combination of such features and functions which are not by their nature mutually exclusive.

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US11/856,720 2007-09-18 2007-09-18 Golf gps device and system Abandoned US20090075761A1 (en)

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US11/856,720 US20090075761A1 (en) 2007-09-18 2007-09-18 Golf gps device and system
US12/133,361 US8070628B2 (en) 2007-09-18 2008-06-04 Golf GPS device
AU2008302484A AU2008302484A1 (en) 2007-09-18 2008-09-16 Golf GPS device and system
DE112008002532T DE112008002532T5 (de) 2007-09-18 2008-09-16 Golf-GPS-Gerät und -System
CN2008801168835A CN101952687A (zh) 2007-09-18 2008-09-16 高尔夫gps装置和系统
PCT/US2008/076482 WO2009039073A1 (en) 2007-09-18 2008-09-16 Golf gps device and system
GB1006455.8A GB2466168B (en) 2007-09-18 2008-09-16 Golf GPS device and system
JP2010525077A JP2010538764A (ja) 2007-09-18 2008-09-16 ゴルフ用ｇｐｓ装置及びシステム

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