The invention is related to outdoor activities, particularly golf and hunting, and more particularly to systems and devices to aid in these activities and devices and systems for use with tagged objects such as golf balls, arrows and bullets.
Golf balls are often lost when people play golf, irrespective of the level of skill of the player. Loss of the ball slows down the game as players search for lost balls and lead to frustrations on the players who hit the balls and for others who are waiting for the players to find the lost balls. Lost balls also make the game more expensive to play because of the cost of new balls. Furthermore, according to the rules of the U.S. Golf Association, a player is penalized for strokes in a round or game of golf if his/her golf ball is lost.
Estimating the distance between the ball and a target, for example, the hole on a putting green, is crucial to club selection. Selecting the club with the proper length and club head angle is important for hitting the ball to a target location at a particular distance away. Often times after a golf ball is teed off from the tee, the ball may land on the fairway, in the rough or in a hazard like a sand trap. Although there are yard markers or sprinkler heads on certain points along the course indicating the distance from the markers to the hole, they are spread wide apart and often far from where the ball landed.
There are individual attempts to make systems, devices and findable golf balls to alleviate the trouble of finding lost golf balls, and there are also commercially available range finders using laser or global positioning satellite (GPS) to determine distances between the user and an object on the course, but there is no integrated or combined device that can perform both tasks.
For example, an attempt to make a findable golf ball is described in German Patent No. G 87 09 503.3 (Helmut Mayer, 1988). In this German patent, a two-piece golf ball is fitted with foil reflectors which are glued to the outer layer of the core. The ball has a shell surrounding the foil reflectors and the core. The ball uses the signal transmitted from the user and doubling the frequency of the signal received using a diode back to the user's receiver. However, it has been discovered that this all foil antenna does not provide a durable antenna and that the ball will not be findable (e.g. findable for a distance of greater than 20 feet) after only a few hits on the ball.
Another attempt in the art to make a findable golf ball is described in PCT Patent Application No. WO 0102060 A1, which describes a golf ball for use in a driving range. This golf ball includes a radiofrequency identification device (RFID) which identifies a particular ball. The RFID includes an ASIC chip which is energized from a received radio signal. The RFID device is mounted in a sealed capsule which is placed within the core of the ball. The RFID device is designed to be used only at short range (e.g. less than about 10 feet). Other examples of attempts in the prior art to make findable golf balls include U.S. Pat. Nos. 5,626,531; 5,423,549; 5,662,534; and 5,820,484.
There are also other examples in the art to make a range finding system. For instance, one example is described in U.S. Pat. No. 5,056,106 (Wang et al., 1990). This system uses a spread-spectrum based radiolocation system, using a hand-held receiver unit and fixed position reference transmitters to determine distance and direction between a golfer and key locations on a golf course such as distance and direction to a particular pin. Each transmitter broadcasts at the same radiofrequency (RF) signal but the carrier is modulated by a unique pseudo-noise sequence. The distance and direction from the current position to any pin is calculated based on the comparison of stored coordinates of the reference transmitters, the pin positions, and other reference points for each hole on the golf course. Other examples of range finding devices can also be found in U.S. Pat. Nos. 5,797,809; 6,320,173; and 6,470,242. Lastly, there are commercially available devices made by, for example, Bushnell™, who uses laser to determine range distances, or Uplink™ and ProlinkGPS™ and SkyCaddy that uses GPS to determine range distances.
Hunting shares similar problems with golfing. In golf it is difficult to quickly locate a golf ball after it has been struck. In hunting it is difficult to quickly locate an arrow or bullet after it has been shot and missed the target or when the arrow or bullet is lodged in a wounded animal that escapes. In golf it is difficult to determine the distance away from objects (i.e. flag pole, the green, hazards, etc.) In hunting it is difficult to determine the distance away from the animal being hunted. Hunters would benefit from tagged arrows or bullets that could be similarly located with a handheld device.
There are significant problems that exist in bow hunting. When an arrow is released it is often difficult to locate the arrow. Arrows can be expensive and time is wasted searching for them. It is often difficult to determine whether or not an animal was struck by an arrow, whether or not the arrow is lodged in the animal, and whether or not the arrow struck an animal and passed through it. This uncertainty can cause significant search times (time that hunters would rather spend hunting for animals)—for both the arrow and the animal that may or may not have been struck by the arrow.
There are instances when an arrow is found that contains evidence that the arrowed struck, passed through and wounded the animal (i.e. blood from the animal on the found arrow). In these instances there are multiple reasons why it is desirable to locate the wounded animal. One reason is that wounded game should not be left to suffer if it can be avoided. Another reason is if there is evidence a hunter wounded an animal with an arrow, the hunter may not be permitted to shoot at another animal on that outing (similar to “catching a limit” in fishing). Therefore the hunter is motivated to find the animal that the hunter wounded. Hunting outings can be very expensive so the hunter has monetary incentive to locate the wounded animal. If an arrow is located and there is no evidence that the arrow struck an animal, this can avoid the uncertainty of whether or not a particular animal was struck and could save significant time searching for an animal that is not wounded.
There are known attempts to solve the bow hunting problems explained above. For example, a product called Tag-n-Trail attaches a tracking object just behind the broad head hunting point on a sage hook that detaches itself to the game animal when shot. See www.flexfletch.com/Tag-n-Trail.htm. However, it has been reported that this product is not effective.
Another example is United States Patent Application Publication No. 2005/0231362 titled “Apparatus carrying a mounted RFID circuit for the purpose of deploying and generating a tracking signal (post shot only) from an arrow” by Pridmore et al describes mechanical embodiment for the “tag” but does not explain in detail how to make the RFID technology work.
Besides golfing and hunting, it is understood that there are other activities that could also benefit from inventive embodiments described herein. Other prior art which may be related to finding an object include U.S. Pat. Nos. 5,298,904 and 6,908,404 and U.S. Patent Application Publication No. 2002/0188359.
Apparatuses and systems relating to an integrated range and ball finder are described herein.
In one exemplary embodiment of an aspect of the invention, a system for measuring distance and for locating a golf ball includes a golf ball and a portable device. The golf ball includes a semiconductor coupled to an antenna, both of which are encased within the hard outer shell of the golf ball. The portable device has a first receiver to receive a signal response from the golf ball and the first receiver can determine information about a location of the golf ball. The information may include distance and/or direction of the golf ball from the device relative to the golf ball. The portable device also contains a second receiver (e.g. a GPS receiver or a receiver to receive a laser's reflection) to determine information about a location of the portable device and a microprocessor coupled to both the first and the second receiver to determine the direction and/or the distance of a fixed object on the course relative to the portable device.
In another exemplary embodiment, a hand held device is integrated with the functions of finding golf balls and for measuring range distances relative to fixed objects on a golf course. This hand held device has a first receiver to receive a signal response from the golf ball and the first receiver can determine information about a location of the golf ball. The information may include distance and/or direction of the golf ball from the device relative to the golf ball. The handheld device also contains a second receiver to determine information about a location of the portable device and a microprocessor coupled to both the first and the second receiver to determine the direction and/or the distance of a fixed object on the course relative to the portable device.
In another exemplary embodiment, a method for measuring a distance and for locating a golf ball is described. A device receives a response in a first receiver from a golf ball having a semiconductor coupled to an antenna, where the golf ball is located within a predefined environment. The first receiver then determines the distance and/or direction of the golf ball relative to the device. The device then receives a second signal in a second receiver to determine information about a location of the device and then measure the distance and/or direction of the device relative to one or more fixed objects in the predefined environment, such as a golf course.
In yet another exemplary embodiment, an apparatus for measuring distance and for locating a golf ball includes a portable device and a cellular telephone. The portable device has a first receiver to receive a signal from a golf ball, upon receiving the signal, the first receiver can determine information about the location of the golf ball. This information includes the distance and/or direction of the golf ball relative to the portable device. The cellular telephone is electrically coupled to the portable device by at least one of a microprocessor and a common memory. The microprocessor has the capability to determine information about the cellular telephone relative to one or more fixed objects in a predefined environment. The information includes a distance and/or a direction of the fixed object relative to the cellular telephone. In one embodiment, the cellular telephone could have both range finding and ball finding capabilities without a separate portable device or accessory.
In still another exemplary embodiment, an apparatus for measuring distance and for locating a golf ball includes a portable device and a range finding device, the range finding device is coupled to a movable object in the predefined environment. A combined range finder and ball finder in this embodiment could be fixed to the cart or optionally removable from the cart. For example, a movable object can be a golf cart equipped with a satellite positioning system on the golf course. The portable device includes a first receiver to receive a signal from a golf ball, upon receiving the signal, the first receiver can determine information about the location of the golf ball. This information includes the distance and/or direction of the golf ball relative to the portable device. The range finding device is electrically coupled to the portable device through at least one of a microprocessor and a memory. This range finding device has the capability to determine the distance and/or direction of the movable object, or both, relative to any fixed object in the predefined environment.
In yet another different exemplary embodiment, an apparatus for measuring distance and for locating a golf ball is an integrated, portable device having the functions of locating a golf ball and measuring distances using a laser beam. This integrated, portable device has a first receiver to receive a signal response from the golf ball and the first receiver can determine information about a location of the golf ball. The information may include distance or direction of the golf ball, or both, from the device relative to the golf ball. The handheld device also contains a laser beam transmitter, a laser beam receiver, an internal clock and a view finder. The user can use the device to first locate a lost golf ball on the golf course, and then use the range finder at the location of the golf ball to measure the approximate distance between the golf ball and a fixed object on the course.
Still another exemplary embodiment is an apparatus for measuring distance and for locating a golf ball that has at least two receivers and laser capability. This apparatus is a portable device having a first receiver to receive a signal response from the golf ball and the first receiver can determine information about a location of the golf ball. The information may include distance and/or direction of the golf ball from the device relative to the golf ball. This portable device also contains a second receiver to determine information about a location of the portable device and at least one of a microprocessor and a memory is coupled to both the first and the second receiver to provide information about the location of the golf ball relative to fixed objects within the predefined environment such as a golf course. The portable device also contains a laser beam transmitter, a laser beam receiver, an internal clock and a view finder. The user can use this laser system to determine the distance between any fixed object on the golf course that is not provided with the information stored in the memory. Lastly, the device may also have data entry and data transmission capability for transmitting data to a location such as the club house in a golf course.
There is a need for a combined and integrated device that can both locate golf balls and determine range distances. Once a golfer hits the ball, the natural process is to find the ball and then hit again towards the target. If the range finder is a separate device from the ball finder, the golfer would have to purchase and carry an extra device, thus increasing the cost to play the game and the equipment to carry onto the golf course. With a combined ball and range finder, the golfer can use the integrated device to find a lost ball, switch mode to determine the distance, and select the proper club for his next shot. An integrated range and ball finder helps to expedite golf play on the course while making the game of golf more friendly and enjoyable for players of all skill levels.
Other embodiments of range and tag finders and methods of making such devices and systems are described. Other features and embodiments of various aspects of the various inventions will be apparent from this description.
The present invention is illustrated by way of example and not limitation in the figures of the accompanying drawings in which like references indicate similar elements.
The subject invention will be described with reference to numerous details set forth below, and the accompanying drawings will illustrate the invention. The following description and drawings are illustrative of the invention and are not to be construed as limiting the invention. Numerous specific details are described to provide a thorough understanding of the present invention. However, in certain instances, well known or conventional details are not described in order to not unnecessarily obscure the present invention in detail.
Various embodiments and aspects of the invention will be described with reference to details set below, and the accompanying drawings will illustrate the invention. The following description and drawings are illustrative of the invention and are not to be construed as limiting the invention. Numerous specific details such as sizes and weights and frequencies are described to provide a thorough understanding of various embodiments of the present invention. However, in certain instances, well-known or conventional details are not described in order to not unnecessarily obscure the present invention in detail.
An integrated ball and range finder of various embodiments will be described in the following specification.
In a different embodiment, the findable golf ball 103 is passive and does not have an active tag that continuously or intermittently transmits an electromagnetic signal from the findable golf ball 103. Instead, the integrated device 102 actively transmits an electromagnetic signal 111 to seek out the findable golf ball 103. Upon reception of the electromagnetic signal 111, the passive or semi-passive tag inside the findable golf ball 103 can modify the frequency and transmit it back to the integrated handheld device 102 in response. In this example, the integrated handheld device may contain a transmitter and a receiver, or a transceiver for both transmitting and receiving signals, while the tag encased inside the golf ball contains an electrical component such as a diode or an integrated circuit that is coupled to the antenna.
In both embodiments, the integrated device 102 can determine the direction 109 and/or distance 108 between the integrated handheld device 102 and the findable golf ball 103. The determination of the distance and/or direction is by determining the signal strength or the time it takes for the signal to travel, between the integrated handheld device 102 to the findable golf ball 103. Alternately, the phase difference between the transmitted signal and the received signal may also be used to determine the time of travel of the signal. Radio frequency identification (RFID) tag is a common implementation of the golf ball finding component of the system. However, other systems such as satellite positioning systems (SPS), like GPS (global positioning satellite) may also be possible. In an embodiment of this ball finding system, the findable golf ball has a unique or quasi unique identification. In one example, the unique or quasi unique identification is made possible by storing a unique or quasi unique identification in the memory in the golf ball. This feature will be further discussed below in
There are different methods in determining the distance and direction of a fixed object in a predefined environment, such as a golf course. Some of these methods are discussed briefly herein and further described in the specification below. In one embodiment, the coordinates of the movable integrated handheld device 102 are retrieved from a SPS each time the range finding function is activated. The SPS may be in the form of GPS satellites or a multitude of cellular signal transmission towers. The coordinates of the handheld device are directly trilaterated from GPS satellites or triangulated by multiple cellular signal transmission towers. Once the coordinates are determined, they can be compared against coordinates of fixed objects on a map that are predetermined and stored in a memory of the integrated device. The distance and direction of the fixed object(s) relative to the handheld device can then be calculated.
In a different embodiment, the distance can be determined by using a laser beam transmitter and receiver inherently built into the integrated device. The distance is determined by calculating the time elapsed for a beam of laser 123 to travel from the transmitter in the integrated handheld device 102 to the target 107 and back to the receiver in the integrated handheld device. In combination with a built in compass, for example, both the direction and distance can be determined.
The integrated ball and range finder is designed to be used with a findable golf ball. The findable golf ball can have various different configurations such as a two-piece or three-piece configuration. Various embodiments of a findable golf ball may be used, for example, with RFID. Examples of findable golf balls and transmitting, receiving devices that transmit electromagnetic energy are described in U.S. patent application Ser. No. 11/264,177 titled “Apparatuses, Methods, and Systems Relating to Findable Golf Balls” by inventors Chris Savarese et al., filed on Oct. 31, 2005 and U.S. patent application Ser. No. 11/248,766 titled “Methods and Apparatuses Related to Findable Golf Balls” by inventors Chris Savarese et al., filed on Oct. 11, 2005. Both of these application disclosures are herein incorporated as reference at least for the purpose of describing such findable golf balls.
Findable golf balls vary in structural and material configurations compared to regular golf balls. However, the findable golf ball has substantially the same weight and size as the golf balls without the internal electrical components. Findable golf balls, just like regular golf balls, comply with the specifications of typical golf balls as specified by the United States Golf Association (USGA) and/or the Royal & Ancient Golf Club of St. Andrews (“R&A”). The tag within the findable golf ball is typically positioned such that the symmetry of the ball is substantially maintained. For example, the center of gravity and symmetry of a findable golf ball with a tag is substantially the same as a golf ball without a tag. The tag in certain embodiments is of such a weight and size so that the resulting ball containing the tag has the same weight and size of regular golf balls. The various parts of a tag may be made with materials which are designed to match the density specific gravity of the materials within the golf ball which are displaced by the tag. Furthermore, the findable golf ball possesses the same performance characteristics as other golf balls approved for use by the USGA and the R&A.
The functionality and description of a combined range and tag finder, as one integrated device, when applied, for example, to a bow hunting arrow application can be similar to the system described in
In another embodiment, such as
Different types of findable golf balls may differ from each other based on their electrical components and thus their functions. In one embodiment, as described in
In one embodiment, the memory stores the unique identification of the golf ball. For example, the memory can store one of a very large number of identification numbers (e.g., over a million), thus making the identification of the ball unique. Or, the memory can store one of a large number of identification numbers (e.g., over a hundred), thus making the identification of the ball quasi unique. With a large number of identification numbers, the likelihood of that number coinciding with another golf ball with the same identification number on the same part of the golf course at the same time is possible, but remote. In one embodiment, the memory 307 with code stores programmed instructions controlling the regularity of electromagnetic signal transmissions and works in conjunction with the handheld device to operate the microprocessor 306. Another embodiment may include unique programmable instructions on how to modify the frequency in response to a received electromagnetic signal from a handheld device to provide a unique identification of the findable golf ball. Typically, instructions are programmed and cannot be modified, but there may be embodiments where programmed instructions can be modified.
In one embodiment, the microprocessor 306 acts to control the interval in which the electromagnetic signal is emitted from the transmitter. The instructions and the microprocessor 306 thus indirectly control the level of power consumption of the golf ball. In another embodiment, the microprocessor 306 also acts to control the traffic flow of information to and from the memory, which in turn, can prioritize the execution of instructions and control power consumption while managing the data flow.
In one embodiment, the microprocessor 306 and the memory 307 of the golf ball 300 operate in conjunction with the handheld device to store information about the locations of the golf ball during play. This provides valuable historical data of a golfer's performance by allowing a golfer to review distances hit, coordinates of where the ball had landed and general trajectory of the ball based on the changing coordinates of the ball during the flight path. This is made possible in several ways. In one way, the receiver on the findable golf ball can intermittently receive information about the coordinates of the golf ball in flight, provided that the golf ball has SPS receiving capabilities. Another way is if there are numerous RFID readers that can transmit RFID signals from fixed locations about the golf course. The changing coordinates of the ball during its flight path can be recorded and thus the flight path and trajectory of the golf ball can be recreated. In another way, when an accelerometer and force transducer (not illustrated) are incorporated into the findable golf ball, the striking force of the golf club against the ball can be calculated. Similarly, the velocity of travel, the amount of spin on the ball resulting from the club strike can all be calculated and recorded by the microprocessor 306 and the memory 307. Therefore when the ball is stationary, all the acceleration and velocity information is zeroed, but from the moment when the ball is struck by the club until it comes to rest, the accelerometer and force transducer can record the changing information, calculating a flight path of the ball. A findable golf ball having a microprocessor, a memory, and a power source can provide a wide range of applications that can be directed to not only identifying a findable golf ball, but also can track the movement of the golf ball and thus help a golfer understand and improve his overall golfing game.
Similar to including tags in golf balls, tags attached to flying objects including, but not limited to arrows and bullets, may be physically small, light weight, durable and not adversely affect the flight of the flying object. Therefore, when a tag is applied to an arrow, the tag may also be physically small, light weight, durable and not affect the flight of the arrow. A tag to be used in either an arrow or a bullet can be similar to the tag as configured in
The tag as described for a flying object may be permanently coupled to a flying object or detachedly coupled to a flying object. In one embodiment, the flying object is an arrow. The tag may be permanently attached to the arrow such as the shaft or the nock of the arrow that are on the rear portion of the arrow, or, it can be attached to the arrow's head or tip or in the front portion of the arrow. For example, a tag may be in the form of a sticker and simply adhered onto the arrow. Examples of tags that are powered by thin-film batteries or solar power are described in U.S. Patent Application Ser. No. 60/850,993 titled “Method And System For Powering Radio Frequency Identification Tags And Labels” by inventor Chris Savarese filed on Oct. 10, 2006 and in U.S. Patent Application Ser. No. 60/876,714 titled “Methods And Apparatuses For Activating And Powering Radio Frequency Identification Tags And Labels” by inventors Chris Savarese et al. filed on Dec. 21, 2006. Both of these U.S. patent applications are hereby incorporated as reference at least for the purpose of describing such active tags.
A permanent attachment to the arrow is particularly effective when broad head hunting points are used. Broad head hunting points are designed to stay in the animal when the arrow head strikes the animal. This can be accomplished by having additional broad head material release upon impact. For example, the arrow tip can extend to widen itself after impact, creating more friction and slowing the arrow down sufficiently so the arrow does not pass through the animal. The RFID tag can be attached to this type of broad head for hunting.
In another embodiment, the tag can be detachedly coupled to the arrow. When an RFID tag is attached to arrow (i.e., the shaft or the nock), the problem is that the arrow may enter and pass through the animal entirely or the may skirt and wound the animal without actually attaching to the animal. Further, a partially lodged arrow may be pried out or broken from the animal, and the tag may either be broken or left with the broken off portion that does not lodge in the animal as the animal runs through the trees and bushes. In these cases, a tag that is detachedly coupled to the arrow shaft may allow the tag to remain with the animal and thus allow the wounded animal to be tracked and located. For example, a tag can be permanently attached to a hook which is in turn detachably coupled to an arrow shaft. When the arrow hits or skirts the animal, the hook can attach onto the hide of the animal and thus allow for the tracking of the animal.
Returning to the description of an integrated ball and range finder. The integrated ball and range finder is designed to find a golf ball and measure the distance and/or direction from the device and/or the golf ball to a fixed object on a golf course. In one embodiment, the integrated handheld device can be broken down into two groups of components each performing a different function—ball finding and range finding.
The microprocessor 404 processes and controls the flow of information. For example, as the electromagnetic signal is received in the receiver, the strength of the signal is determined and processed. The resulting information is stored in the memory 402 while the microprocessor 404 makes calculations to determine the distance and direction of the findable golf ball based on the strength of the electromagnetic signal received from the findable golf ball. The power source of the integrated device can be in the form of rechargeable batteries such as lithium ion batteries or non-rechargeable batteries. The batteries can be solar powered, rechargeable using the rechargeable battery of driving the golf cart or by an alternating current power source. The power source 405 can also be electrically coupled to the range finding component to provide energy to power both the ball finding and range finding components. The microprocessor 404 can be dedicated to the ball finding component or shared with the range finding component.
In another embodiment, the receiver 403 may perform both transmission and receiving functions. Thus, the receiver 403 can be a transceiver. In a transceiver configuration, the handheld device can in turn actively transmit electromagnetic signals while in searching mode for the findable golf ball, and it will expect a unique or quasi-unique response to identify the findable golf ball that was used by the particular golfer.
In one embodiment, the memory 402 of the integrated handheld device is unique and can be programmed to store at least a range of programmable unique or quasi-unique identification numbers to identify different findable golf balls. In another embodiment, the memory can also be used to store the various locations of the findable golf balls as they are found. Recording the locations of the golf balls can assist the golfer in keeping track of how far and where he hit his shots. In another embodiment, the memory 402 can store information including the course map, topographical information for each hole and each putting green, tips on how to play a specific golf course and even locations of the nearest refreshment stands and restrooms. In one embodiment, the memory 402 can also be shared with the range finding component to store information of distances of all golf shots in addition to the information about the course as described.
Additional features that are not illustrated but can be included in the handheld device to enhance user experience include, but are not limited to, a display, data transfer port, charger port and a device mount to mount onto a club bag or onto a golf cart. The display is preferably a touch screen color display with high resolution that allows data entry with a minimum number of external buttons, key pad or entry keys to input data. The data transfer port can be a wired port or a wireless port such as, for example, any of the wireless data transfer port using Bluetooth technology or any of the IEEE 802.11 protocols (including but not limited to a, b, g, d etc.) or IEEE 802.15 protocols, or similar, etc. There can also be a USB or fire wire data port for additional memory such as flash memory or for data transfer from the handheld device.
In one embodiment, the integrated ball and range finder relies on the downloading of signals to calculate positioning coordinates (longitude, latitude and/or altitude) of the device. Similar application of positioning coordinates can also be used to find tags on a flying object. One example includes the global positioning satellite system (GPS).
In another embodiment the integrated ball and range finder uses a cellular network of multiple ground transmission towers to determine the position of the device by a method such as triangulation. Similar application of positioning coordinates can also be used to find tags on a flying object.
In both of these embodiments, the microprocessor 524 is used to calculate the coordinates or position of the handheld device based on the differential signals received from satellites or ground transmission towers. The receiver 523 and antenna 521 are required to receive the signal while a transmitter 527 is optional. The processed signal is converted into coordinates by the microprocessor 524 and stored in the memory 522. Although other electrical components such as the microprocessor 524, the memory 522 and the power source 525 may be shared with the ball finding component, the GPS receiver, the GPS antenna are likely to be dedicated to the use of the range finding component only. The power supply, similar to the one described in the ball finding component may be rechargeable and may be in the form of lithium ion batteries or may be a non-rechargeable battery or set of batteries. Further, the power supply can be rechargeable by solar power, by the rechargeable battery powering the golf cart, or by an alternating current source. The power supply may also be a non-rechargeable battery or set of batteries. Additional components not illustrated but that can enhance user experience include, but are not limited to, a touch screen color display with high resolution, high speed data ports for additional memory or for data transfer, port for recharging the power supply, a wired or wireless data transfer port such as a port using Bluetooth technology etc., as well as device mount onto the golf cart etc. Again, these additional components will be shared with the ball finding component since the range finding component is integrated with the ball finding component in one handheld device. Both of these embodiments may be able to allow pre-selecting of a fixed object, such as the hole on the putting green, and show the distance to the front, middle, and back of the green. For example, at a tee box, based on the GPS coordinates of the portable device, the device can automatically determine the exact part of the course it is located, and can allow the golfer to select distances to various parts of the course that are predetermined.
A different method of range finding can be performed using a laser beam. This may be particularly applicable in hunting where a laser beam finder is used to determine the distance between a hunter and the target. The integrated range and tag finder can further allow a hunter to track a flying object such as an arrow after it is shot towards the target.
In an integrated handheld device 700, the RFID transmitter 703 and the RFID alarm 704 are optional components to broaden the application of the ball finding capability. For example, as described earlier in
The range finding function in
In this embodiment where positioning coordinates of the handheld device are determined by a satellite positioning system, the positioning coordinates of the fixed objects about the course are first determined. Since the objects are fixed, their coordinates do not change. Once the coordinates are determined, they can be plotted onto a map. Both the map and the coordinates can be stored electronically in the memory of the handheld device. For example,
In the present illustration, 801A, B, C are representations of the different tee boxes at the start of the course. A series of coordinates 802 together form a representation of the fairway 812, while a series of coordinates 803A, B form a representation of the rough 813 besides the fairway. Similarly, representations 803A, B can line up near the edge of the course to mark as boundaries of the course. Furthermore, 806A, B, 807A, B, C, and 808A, B, C are representative of the hazards 815, putting green 814, and rough 816 about the putting green, respectively, while 804 and 805 represent the trees 817 on the side of the course and the structure 818 that is observed on the course. The sum of these representations of fixed objects can be overlaid on a map. The map can assist a golfer visually with an orientation of the course, while the various representations can allow the golfer to determine where the device is positioned relative to these representations on the course. The multiple representations on a golf course can also serve indirectly as yard markers. In other words, a golfer can roughly estimate the distance of the ball relative to the putting green or from the tee box simply by associating the position of the golf ball with the position of the nearest representation on the course.
In one example, after a golfer hit the ball from the tee 811 and lost it in the rough 813, the golfer can use the hand held device to locate the ball. Once the ball is found with the handheld device, while standing over the golf ball and holding the device, the golfer can determine the positioning of the device by satellite or transmission towers and compare the position of the device (essentially the same as that of the golf ball) against any other fixed object to determine the distance and direction by comparing the predetermined coordinates of those objects against the present position of the device.
In another embodiment, after losing the golf ball from a tee shot, the golfer can approach the direction of the lost ball to search for the ball using the handheld device. Once the golfer detects the lost golf ball with his handheld device, the device can determine the distance and direction of the ball relative to the device. After the ball's distance and direction is determined, the user can download the coordinates of the handheld device and compare that against the coordinate representations of the fixed object target. Using vector analysis calculations, the handheld device can calculate the distance and direction of the ball to the fixed object target. Should the ball be far away from the golf cart or the clubs, the golfer can save time by selecting the club he wants to use based on the distance and direction of the ball from the fixed object before he approaches the ball.
Pre-recording positions of fixed objects on a golf course and storing the representations of the fixed objects in the form of, for example, coordinates, can be implemented efficiently and economically. In one example, the representations can be overlaid on a map of the course so that the distances and direction of the device relative to the fixed objects can both be calculated by the microprocessor and intuitively understood by the user. For instance, the device location can be indicated as a red blinking dot on the display screen, the ball as a white dot, whereas the rest of the course is in different shades of green, and the target is a blue dot. With visual representation, the golfer can easily determine where he (or the device) and the ball are located on the map, and determine the relative distance between the device and/or the ball from any selected fixed object on the map.
Overall, the implementation of this ball and range finding system requires a shared memory (such as memory 710 in
Other variations of an integrated ball and range finder can also be implemented. In one embodiment, both the ball finding and range finding components of the integrated handheld system can be based on RFID. This can be accomplished by placing multiple RFID readers all over the golf course and having an active or passive RFID tag in the ball. The number of readers and tags used for the implementation depends on the operating range of the RFID system. The operating range of an RFID system will obviously vary based on the sophistication of the RFID technology. In one instance, with the earlier radar based system where a handheld device transmits a signal and the passive tag in the ball doubles the frequency using a diode and transmits back to the handheld device, the range is approximately about 40 ft to about 60 ft. In a more sophisticated system, where an active tag is placed in the ball, the range of transmission of the RFID signal increases to between about 100 ft to about 150 ft. Still, in more sophisticated systems, the range of the signals can be detected at still a farther distance, to approximately about 300 ft or further. Moreover, in such a system where RFID readers are placed about a golf course, the entire system of RFID monitoring the golf course can contribute to a comprehensive system of ball and range finding while provide other advantages such as direct measurement of the ball velocity and path of travel that is made possible with the inherent RFID system capability. The number of RFID readers in such a system can be reduced as the RFID technology becomes more sophisticated and the resolution of the readers to read a traveling tag increases. Nevertheless, even with current technology, the concept of implementing such a system using a collective number of RFID readers to pin point and track a traveling RFID tag is possible with existing technology. As the RFID technology evolves, fewer readers may be used to implement in such a system. For example, in one embodiment, the course may require only three to five readers, as the range of detection increases in each reader, to operate with an active or passive or semi-passive tag in the golf ball. In a different embodiment, one reader is placed in the ball, while all the readers as previously described to be fixed at various points on the course can be replaced by tags.
The integrated ball and range finder may appear in other different embodiments. Same can be applied to, for example, an integrated range and tag finder for a tag coupled to a flying object such as an arrow. In one embodiment, a ball finder may be electrically coupled to a cellular telephone that has software to determine its location. In one example, the cell phone can be both physically and electrically coupled to the ball finder, though only electrical coupling is required to accomplish the range finding function of the integrated ball and range finder.
In this illustration, the cellular phone 1020 has a microprocessor 1022 electrically coupled to a transmitter 1023, receiver 1024, antenna 1025, power source (battery) 1027, and memory 1026. These electrical components collectively act to function as a cellular telephone. The connection port 1021 allows the cellular telephone 1020 to communicate with the ball finding component 1000 by establishing an electrical connection 1010. The electrical connection 1010 can be in the form of a data cable, or it can be wireless. The wireless protocol can be, for example, an IEEE 802.11 or 802.15 based protocol, or similar, Bluetooth, or infrared etc. After communication is established between the two devices, the microprocessor 1005 in the ball finder 1000 will send a request to the microprocessor 1022 in the cellular phone 1020 to establish information of the present location or position of the cellular phone 1020. In one example, the cellular phone 1020 can retrieve its position information by triangulating signals received from at least three ground transmission towers of a cellular network of transmission towers or from SPS satellites. The information can be in the form of a GPS coordinate that includes its longitude, latitude, and altitude. In another example, the cellular phone 1020 can be pre-loaded with a software application provided by the golf course that can receive signals transmitted only from within the golf course for positional information on the premises of the golf course.
Once the positional information is obtained, the microprocessor 1005 can use the position information to compare against positional information of fixed objects already stored in the memory 1008 to determine distance and direction relative to the fixed object. In a different embodiment, the software application and predefine positional information of fixed objects can be stored in the memory 1026 of the cellular phone 1020, and the user can determine the relative distance and direction of the cellular phone 1020 relative to the fixed object by interfacing directly with the telephone. Although cellular phones 1020 are already equipped with color displays (not shown) and can display maps of the range finding application as described earlier, due to the size of the display and limited resolution, a larger display which can be available on the ball finding device, may be preferred. In another embodiment, the microprocessor 1005 and memory 1008 of the ball finding component 1000 can estimate the distance and direction of the ball from the ball finding component. In turn, the microprocessor 1005 in the ball finding component 1000 can use the positional information supplied by the cellular phone 1020 to calculate the distance and direction of the golf ball relative to a fixed object on the course, based on predefined information of the fixed objects stored on the cellular phone. In another embodiment, the cellular telephone could have both range finding and ball finding capabilities without relying on a separate portable device.
In another embodiment, the ball finding component 1000 can include another transmitter and receiver that allows direct communication with the clubhouse. For example, it can be used as an emergency communication channel. More conveniently, it can be used as a means to track the whereabouts of the golfers on the golf course, allowing golfers to place orders for food and beverages, as well as for the clubhouse to notify the golfer should weather conditions deteriorate, such as the arrival of thunder and lightning, so that golfers can be recalled back to the club house. In this embodiment, all the software applications for a range and ball finder will be pre-loaded and built into the ball finding component 1000, the cell phone will merely be used as a means to provide the location of the device or golfer on the course.
In a different embodiment, the integrated ball and range finder may include a ball finder that can be electrically coupled to a commercially available range finder such as a GPS unit on a golf cart that is provided by the golf course, or a commercially available laser range finder. A similar system can also be found in, for example, a motorized vehicle or motor bike or an all terrain vehicle which replaces a golf cart to be coupled to an integrated range and tag finder that may include at least a GPS unit. Such a combined ranger finder/ball finder could be fixed to a golf cart and be optionally removable.
One embodiment consists of the combination of the ball finding component 1100 and the GPS unit 1120 of a golf cart. The method of determining the distance and direction relative to an object relies upon comparing the GPS or positional information of the golf cart with respect to the predefined coordinates of the fixed objects as predetermined and stored in either the memory 1121 of the GPS unit (as illustrated in
In another embodiment, a ball finding component 1100 as described above in
Still in another different embodiment, an integrated ball finder having a ball finder and a laser range finder component housed together in one casing can be used in combination with a GPS unit on a golf cart. The advantage of a golf cart GPS unit combined with a ball finder is to provide the GPS positioning of golf cart at all times. The distance of the ball from the fixed object still has to be calculated based on the ball finder locating the ball and distance of the cart from the targeted fixed object. Since the information of a fixed object is generally represented by a coordinate and unless many representations are taken of a large fixed object, for example, multiple points on a putting green, the distance from the ball to where the golfer wants to hit his ball is still relatively inaccurate. With the availability of a laser range finder, the golfer has the option of measuring directly the distance of the ball to the exact location where he wants to target his golf shot and therefore provide a more precise and accurate distance measurement.
In one embodiment, the golf ball only intermittently turns itself on to listen for the handheld device, however, once it receives the transmitted signal from the handheld device, the golf ball will remain turned on either continuously or will be turned on much longer than it is turned off, until the user finds a ball and sends a different signal to deactivate the golf ball. In another embodiment, the golf ball operates in reverse and is activated or turned on at all times unless it is being turned off by a special signal sent from the handheld device.
Once the handheld device receives the response sent by the golf ball, as shown in 1208, the handheld device will then determine the distance and direction of the golf ball relative to the handheld device, as shown in 1210. Generally, the strength of the signal received by the handheld device transceiver is used to determine the distance and direction of the golf ball from the handheld device. In the embodiments where the signal strength of the ball can be adjusted, the handheld device will equally calibrate its receiver to adjust for the ball's increased signal strength when calculating the distance of the golf ball. Once the direction and/or the distance of the golf ball is determined, the golfer can follow the directions or positional information determined by the handheld device to find the golf ball as in 1212.
The method of determining a distance from the golf ball relative to a fixed object in
In a different embodiment of using a laser range finder, the golfer/user will still begin by first locating the golf ball and positioning the integrated handheld device above or near the proximity of the golf ball as in 1214. However, in place of the steps illustrated in 1216 to 1222, the golfer simply points and aims the device's laser transmitter to a fixed object, shoot transmit a laser beam to that fixed object and wait for the laser beam to be reflected and received by the handheld device. The elapsed time will allow the handheld device to calculate the distance between the handheld device and the fixed object. As far as recommendations and options, the handheld device can still store in its memory the topographical, environmental and general course information specific to each part of the course and the user can retrieve them independently for each part of the course.
A method to determine the distance and direction of a golf ball from a fixed object without physically being at the golf ball is also possible, such a method is illustrated in
It should be noted that at least some if not all of the above embodiments are applicable in at least the activities of hunting with a bow and arrow, hunting with gun and bullets, and flying model rockets and model airplanes. In these activities, a tag may be coupled to the flying object (arrow, bullet, model rocket or model airplane) so that the flying object can be tracked and located using an integrated range and tag finder. It should be noted that the combined range and tag finder, one integrated device, may comprise an RFID component for finding the tag or flying object, and may use a satellite positioning system or a laser beam or the RFID system or a combination of any of the three for range finding.
In the foregoing specification, the invention has been described with reference to specific examples. It will be evident that various modifications may be made thereto without departing from the broader spirit and scope specified by the following claims. The specification and drawings are accordingly to be regarded in an illustrative sense rather than a restrictive sense.
This application claims the benefit of the filing date of U.S. Provisional Application No. 60/900,582, filed Feb. 9, 2007, and this provisional application is incorporated herein by reference.
Number | Date | Country | |
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60900582 | Feb 2007 | US |