referring to the drawings in detail and to fig1 in particular , reference character 10 generally designates an electronically identifiable golf ball constructed in accordance with the present invention and reference character 12 designates a transponder assembly implanted in the golf ball 10 . preferably , the transponder assembly 12 contains no batteries and is thus considered to be a passive transponder . such a passive transponder receives its energy from an electromagnetic field such as may be generated by a reader discussed in greater detail below . the transponder 14 should be maintenance free and have a programmed code which is unique so one golf ball may be distinguished from another . one suitable transponder is the &# 34 ; trovan &# 34 ; id 100 - glass encapsulated transponder . referring now to fig2 the transponder assembly 12 is preferably housed within the golf ball 10 in such a manner that it can withstand the forces placed on the ball when struck by a golf club . in the preferred embodiment , the transponder 14 is encapsulated for protection . some suitable protective materials include , but are not limited to plastic , polymers , glass or other similar protective materials . fig2 shows the transponder encapsulated in glass 16 . this hermetically seals the transponder 14 and holds its components in place to help prevent damage from shock . while the transponder 14 may be implanted in a golf ball like this , it has been found that shock reduces life expectancy of the transponder 14 and therefore additional means should be used to reduce shock damage to the transponder . the preferred additional means includes inserting the glass encapsulated transponder ( 14 & amp ; 16 ) into a metallic housing such as tube 18 . since the transponder will receive its energy from an electromagnetic field generated outside of the golf ball 10 , it is preferable for the metallic housing to include apertures therein . in the case of the metallic tube 18 , such apertures are provided at each end of the tube as well as a slit 20 running the length of the tube 18 . since the golf ball 10 will receive tremendous energy when hit , a spacer should be provided to keep the slit 20 from closing when the ball 10 is hit . one suitable spacer material is nylon . the transponder 14 should be held within the tube 14 by an elastic material which will further absorb shock . one way to provide the elastic material is to slide the transponder into silicone tubing 22 and then press the transponder , silicon tubing and all into the aluminum tube 18 . the size of the silicon tubing should be such that it fits snugly around the transponder 14 and snugly inside the aluminum tubing 18 . while the transponder 14 may be inserted into an existing golf ball , the ball is preferably formed or made around the transponder and its housing so the outer skin of the golf ball will not be damaged . it is also believed that by forming the ball around the transponder , additional shock resistance will be achieved . if the transponder is inserted into an existing ball , one may drill a hole in the ball and then press the housing containing the transponder into the ball . the remaining portion of the hole should then be plugged . once several golf balls have received the transmitters 14 , then a reader ( such as reader 24 in fig3 ) may be used to electronically distinguish one golf ball from another . as shown in fig3 a reader 24 should include a transmitter 26 and a receiver 28 , and may have either an internal or external power supply 30 . similarly , a processing / storage device should be connected to or incorporated in the reader 24 for storing data received by the receiver 28 . the transmitter 26 emits electromagnetic radiation which is received by the transponder 14 . the electromagnetic radiation provides the energy to power a data transmitter 34 in the golf ball 10 . the data transmitter 34 emits a specifically coded electromagnetic radiation back to the reader where it is received by receiver 28 . this information may be sent to a remote or local processing / storage unit 32 , where the individual golf ball 10 is identified and its location is correlated with the location of the reader . this information is then stored or used . since each golf ball 10 may be identified by a reader , the ball identification and the location at which it was read may be correlated with an individual player and displayed . one suitable type of display is a cathode ray tube 36 such as is commonly used with computers . however , it should be realized that additional or different types of displays may also be used . for example , a score board that is visible to all players at a driving range may be used to display the identity and other information about specific golf balls . preferably , an input device 38 is provided so that an operator may add information to the processing / storage device 32 . for example , an operator dispensing a group of balls to a specific player may wish to identify the player having those balls . this may be done by inputting the player &# 39 ; s identity so it may be associated with the balls dispensed . one typical input device which may be used with this invention is a keyboard such as are commonly used with computers . however , by way of example and not limitation , other suitable input devices include microphones , number pads , and scanners . it should also be noted that additional readers such as reader 40 may be connected to the processing / storage unit 32 . by using additional readers situated at different locations one may identify a particular ball as well as its particular location . as illustrated in fig3 a remote receiver , such as receiver 40 , may be hard - wired to the processing / storage unit 32 . while this is the most preferred embodiment , it should be noted that other means of communication between the remote receiver and the processing / storage unit may be utilized . by way of example , information may be transferred from the remote receiver 40 to the processing / storage unit 32 by radio waves , or by removable connection between the remote receiver 40 and the processing / storage unit 32 . one example of this is where the remote receiver 40 is located at a remote location where it temporarily stores information on its own and then is periodically returned to the processing / storage unit where said information is downloaded . fig4 illustrates the preferred embodiment of a game which may be played utilizing the electronically identifiable golf ball 10 . the game preferably includes a playing field 42 similar in many respects to a commonly used driving range . however , the playing field 42 includes a plurality of slopes , burms , retaining walls or the like to direct the electronically identifiable golf balls to a desired location for identification after being hit by a player . for example , arrow 44 indicates a slope on the playing field toward the flagged area and away from the t - box 46 . arrows 48 and 50 indicate slopes or burms which direct a ball to the center of a flagged area , and wall 52 provides a back stop to prevent balls from passing beyond the flagged area . thus , a ball landing in the playing field 42 , such as ball 68 , would travel down to the flagged area and enter a cup at one of the individual flags . preferably , remote readers such as readers 70 or 74 ( only two readers being designated herein ) are located at each of the individual flag cups . the scanners are preferably located near to a cup , so ball moving systems are eliminated . since the transponder code will traverse most solid objects , the scanners may even be buried directly in the ground near each cup . in this way a point score may be assigned to an individual ball depending on which flag cup it enters . it should be noted that the cups may include short passage ways to a ball tub or the like to store a plurality of golf balls so many balls may pass by the reader without emptying the cup . in the preferred embodiment of the game , which may be played with the electronically identifiable balls on a playing field such as field 42 , each player is dispensed 36 electronically identifiable golf balls 10 . as the balls 10 are being dispensed , they pass by a reader such as reader 24 ( fig3 ) wherein the code for each ball is recorded and assigned to a player identifier . the player identifier may be the player &# 39 ; s name , initials , a number or similar means for distinguishing the player &# 39 ; s identity and may be entered by means of the input device 38 shown in fig3 . each player begins with a score of 96 strokes , and the score will rise or fall depending on where the player hits the balls 10 . the score may be displayed on scoreboard 72 , so each player can track his or her progress . similarly , other players may have their scores simultaneously listed on score board 72 . the player would hit the ball 10 from the tee box 46 and attempt to drive the ball 10 to the center flag 60 . a ball entering the center cup at flag 60 would be read by remote reader 74 , wherein the ball would be identified and related to the player . a score of - 1 stroke would be combined with the individual &# 39 ; s total stroke score , thereby reducing the score on the scoreboard 72 by one stroke . if , however , the player missed the center flag 60 and hit the flags to the immediate left or right ( 58 or 62 respectively ), then the player would receive a reduction in stroke score of 1 / 2 of one stroke , thereby reducing the players score on the scoreboard 72 by one half of a point . thus , the game is designed to reward accuracy and straightness of shots . as flags further from the center flag are encountered , the reduction in score is lessened or the stroke score may even be raised as a penalty stroke . for example , flags 56 and 64 could add one half of a stroke to the player &# 39 ; s score , and flags 54 and 66 could add a full stroke to the player &# 39 ; s score . since a reader at each flag is able to identify each specific golf ball 10 and the player to whom it was dispensed , multiple players may play the game simultaneously and the scoreboard will track each player individually , thus allowing for competitions wherein each player may proceed at his or her own pace . since a player &# 39 ; s score is recorded electronically , a data base may be created wherein a player may track his history . other information may also be combined with the score and player identifier , such as club size or make , air temperature , or even the type of shoe or glove worn . this would allow a player to evaluate his or her performance under various conditions . the following table provides a series of examples of how an individual would score depending on where his golf balls landed in the playing field . by way of illustration , the first row shows a player who had one ball at flag 56 , four balls at flag 58 , twenty - six balls at flag 60 , four balls at flag 62 , and one ball at flag 64 . the player started with a stroke score of 96 and gained 1 / 2 of a stroke for the ball at flag 56 , lost two strokes for the four balls at flag 58 , lost 26 strokes for the twenty - six balls at center flag 60 , lost 2 strokes for the four balls at flag 64 and gained 1 / 2 of a stroke for the ball at flag 64 . the player finished the game with a total score of 67 . similarly , the third row shows a player which hit 22 balls to the center , 13 balls to the flags on either side of the center , and the remaining two balls to other flags . since this player was not as accurate as the player shown in the first line , his / her score is somewhat higher with a final stroke score of 69 . ______________________________________flag 54 flag 56 flag 58 flag 60 flag 62 flag 64 flag 66 total + 1 + 1 / 2 - 1 / 2 - 1 - 1 / 2 + 1 / 2 + 1 score______________________________________0 1 4 26 4 1 0 670 1 5 24 5 1 0 680 1 6 22 6 1 0 690 1 7 20 7 1 0 700 2 7 18 7 2 0 730 2 8 18 8 2 0 720 2 10 14 10 2 0 740 3 9 12 9 3 0 780 4 9 10 9 4 0 811 s 8 8 8 5 1 872 6 7 6 7 6 2 934 7 5 4 5 7 4 1028 5 4 2 4 5 8 11110 6 2 0 2 6 10 12012 5 1 0 1 5 12 124______________________________________ the preceding chart is a list of examples of scoring possibilities in the preferred game . many other possibilities exist and the chart should be viewed as a means of explaining the game and not as a limitation . changes may be made in the combinations , operations and arrangements of the various parts and elements described herein without departing from the spirit and scope of the invention as defined in the following claims .
an electronically identifiable golf ball having a passive transponder implanted therein . the transponder is surrounded by a layer of elastic material which is then surrounded by a rigid housing to protect the passive transponder from the external forces applied to the golf ball .