CA1100635A - Electronic gaming apparatus - Google Patents

Abstract

ABSTRACT OF THE DISCLOSURE
In amusement and game apparatus of the type having a set of symbol-bearing reels and mechanism for spinning the reels after depositing the proper coins, electronic control means for selecting the stopping positions for the reels, for detection of the reel position, for calculating the payout to the player in response to the reel position, and for monitoring the payout and resetting the device for the next play.

Description

~ 3S

1 ¦ Background of the_Inventio_

2 ¦ The subject invention is applicable to many types

3 ¦ of gaming devices wherein the player inserts the proper coin

4 or coins and activates a plurality of movable members.

5 1 These members are subsequently stopped in random positions

6 ¦ with a payout being made in response to the degree of corre-

7 ¦ lation between the stopped positions and predetermined winning

8 combinations. While the invention has broader application,

9 ¦ it is described herein for use in a gaming device commonly

10 ¦ known as a slot machine having internal mechanical operating

11 ¦ mechanisms similar to that described in U.S. Patent 3,642,287,

12 ¦ Rotating Reel Game With Masking Shutter, issued on February 15,

13 ¦ 1972, with Lally et al, inventors.

14 I In the device of that patent and other similar devices

15 ¦ relating to permutation and combination apparatus, there is 1~ ¦ provided a plurality of symbol-bearing reels mounted for 17 ¦ rotation about a single axis. The reels are set into rotation 18 ¦ by the player pulling a handle. Thereafter a timing apparatus 19 ¦ stops the reels individually and on a random basis.
20 ¦ Located on the outer periphery of the reels are 21 ¦ combinations of indicia visible to the player. When the reels 22 ¦ have all stopped, there is viewed by the player -the combinations 23 ¦ of indicia written on the auter periphery of the reels which 24 ¦ combinations determine-whether or not a payoff will be received 251 by the player. At the same time the stopped positions of the 2~1 reels are sensed and fed to a calculator which activates a 271 payout sequence if the combinations correspond to those selected 28¦ for payout.
~9¦ Since the winning combinations are determined by the positions in which the reels come to rest, the payout percentages 31 for the machine are dependent upon the proper operation of the 32 ¦ reel mechanism. Because the reel mechanism is a mechanical I ~

device, it is subject to abnormalities in operation due to, among other things, reel imbalance, reel friction and reel wear.
Such inconsistencies in operation result in th.e unpredictability of the payout percentages which is disadvantageous both to the player and to the machine owner~ It is the primary object of this invention to provide a mechanical gaming device having an electronic control with associated sensing means for operating the game such that inaccuracies in operation due to mechanical malfunctions are minimized and the predic-tability of correct and reliable operation of the machine is greatly enhanced.
Summary of the Invention In a gaming mechanism of the type having mechanical mechanisms which are put into motion and the winning combinations are determined by the stopped position thereof, the combination of a random number generator which is set into operation when the game is initiated, means to detect the n:umber generated by the random number generator and for stopping the movable members ; at positions corresponding to those numbers, and means for . sensing the stopped position of the movable members for generating a signal for use in calculating the payout to the player.
More particularly, there is provided a game apparatus of the type having a set of cyclically rotational movable symbol-bearing members which are activated and set into motion by a :"
~;~ player to be subsequently stopped with the alignment of the symbols on the members serving as a determination of the score~

~ award for the game played~ comprising in combination:

: means activated by the player for setting the symbol-`: bearing members into motion;
;:;
~; 30 each of the symbol-bearing members having adapted Eor rotation therewith coding means for defining a predetermined number of possible symbol stopping positions and comprising alternate address and decode information elements for each of said symbols/ the address and decode information for each s~mbol being unique to that symbol;
means for reading the address information indicia for said symbols as the symbol-bearing members pass a predetermined poin~ in their respective rotational cycles and for detecting the instantaneous position of the symbol-bearing members;
a generator for generating on a ramdon basis numbers ;
corresponding to the address information indicia for the various stopping positions of the symbol-bearing members;
means for selecting a number rom the generator and for stopping each symbol-bearing member at the position :~
corresponding to the address information indicia for the ~;
random number selected;
means for reading the decode information indicia for each symbol-bearing member after each member is stopped to detect the stopped position of each member and for determining the relative positions of said members; :
means for determining the score-award for the game ~- played based on the relative stopped positions of said symbol-bearing members.
Description of the Drawings FIG. 1 is a perspective view of a prior art gaming ~: device of a type to which the subject invention can be applied;
FIG~ 2 is a perspective view of a reel mechanism :' -3a-of a gaming device incorporating the subject invention;
I FIG. 3 is a block diagram showing the functioning ;o a typical prior art gaming device;
FIG. 4 is a block diagram shcwing one preferred ¦embodiment of the invention;

3b-~ ~0~ !635i 1 FIG. 5 is a block diagram showing a second embodiment 2 of the invention;
3 FIG~ 6 is an enlarged side view of the reel and reel 4 stopping mechanism of the s~bject invention;

5 ¦ FIG. 7 is a cross-sectional vieaw along the line 7-7 6 ¦ of FIG. 6;
7 ¦ FIG. 8 is a circuit diagram of the reel motion and 8 ¦ position detector; and 9 ¦ FIG. 9 is a block diagram of the control logic of 10 ¦ the subject invention.

12 ¦ Description of the Invention 13 ¦ in FIG. 1 is shown a typical prior art machine in 14 I which the subject invention can be incorporated. Each gaming 15l machine 10 is activated by placing coins into a coin acceptor 11

16 such as that disclosed in U.S. Patent No. 3~998r309 171 Coin Accepting Device, Mandas et al,Issu2d De~er 21, 1976, ~
18 I assigned to the same assignee as this invention. Generally ~9 I such coin acceptors conduct various tests concerning sizet 20 ¦ weigh~ and metallic content of the offered coin, for identifying 1 21¦ the individual coins as being acceptable for playing the gaming 22 machine. ~requently in such devices multiple coins can be 23 paid in succession to multiply the payout and also to increase 24 the odds o~ winning.
If the coins are accepted, display lights (not ~hown) ~6 I are lit to indicate the machine is enabled for playins. Play 27 I is initiated by pulling the handle 12 which sets into rotation 28 a plurality of reels 13 (FIG. 2) which are subsequently stopped 29 ¦ making visible the combinations of indicia 14 on each reel 30 ¦ outer periphery Payouts are determined by whether or not 31 ¦ the indicia on the stopped reels c~mpare with predetermined 32 I winning combinations.

i -4--,~

1 ~ 63~ii 1 ¦ In FIG. 3 is shown a functional b]ock diagram of a 2 typical prior art gaming machine. Therein the coin acceptor 11 3 is shown as receiving the coins. The receipt of the coins 4 ¦ and the activation of the device for play is indicated through the control line llA by a proper signal to the enabling 6 ¦ device 15 permitting the player to pull the handle 12 of the 7 ¦ device. The handle motion i~ transmitted through -the mechanical 8 linkage 12A to set the reel mechanism 16 in motion. At the 9 ¦ same time the enabling device through the control :Line 17 10 ¦ sets into motion a mechanical random time generator 18 which 11 ¦ activates a reel stop mechanism 19 for stopping the individual 12 ¦ reels in succession. Generally such reel mechanisms comprise 13 three or more individual reels.
14 The random time generator 18 has usually been a mechanical device which on a random time basis~ actuates 16 suitable linkages to stop the reels in successive order and

17 at random locations. Thereafter through the control linkage 21

18 the reel stopped position detector 22 detects the position

19 of each reel and eeds a suitable signal to the control and payout logic 24 for calculation of any payout. In one embodiment, 21 the stopped position detector is a mechanical linkage which 22 positions electrical slide contacts (not shown) indicating the reel position. Prior to -this time and through the conductor llA, ~4 there has been supplied by a coin counter 25 a signal indicative of the number of coins played in the machine to enable the 26 control 24 to calculate the payout. Thereafter by proper 27 actuation of a coin payout hopper 25 a predetermined number of 28 coins are disbursed in accordance with a signal supplied through 29 the control line 26.
The coins in the payout hopper pass from the coin 31 acceptor 11 along the path 27. The total weight of the coins 52 ln the hopper is detected by the hopper coin detector 28 1 which, when the weight is above a predetermined value, actuates 2 a coln diverter mechanism 29 through the conductor 28A to 3 move a deflector 30 into the path of t:he coins and divert 4 ¦ any further coins received through a coin counter 31 to a S coin drop box 32. More complete details of a typical gaming 6 ¦ device of the type just described can be obtained by reference r ¦ to the heretofore-identified U.S. Patent No. 3,642,287.
8 Thus the reel stopping positions are determined or 9 affected to some degree by the mechanical condition of the 10 ¦ reel mechanism, that is, the freedom with which the reels 11 turn, since it is obvious that if a reel failed to turn with 12 the actuation of the lever, the player would immediately 13 ¦ recognize that his odds could be greatly enhanced or greatly 14 ¦ reduced depending upon whether winning or losing indicia was 15 ¦ displayed on the stalled reel.
16 ¦ In addition, the payout hopper gross weight is 17 ¦ detected by the typical hopper coin detector 28 and the 18 ¦ diverter mechanism 29 actuated in the present machines during 19 ¦ the period of insertion of the coins. Past experience has

20 ¦ shown that the hopper coin detectors function as weight detectors

21 ¦ and tend to oscillate or chatter when the critical weight is

22 approached to thereby render a lack of control on the count

23 ¦ of the coins because the coin might pass to the hopper or

24 ¦ drop box depending upon the immediate momentary position of the

25 ¦ oscillating divertex. Thus coin accountability is very 2~ ¦ difficult in the present machines thereby requiring that the 27 owners depend only upon a gross count of coins taken from the 28 ¦ repositories and not upon a precise count of coir.s played in 29 each machine indicating the gross number of coins deposited in 30 ¦ the payout hopper and the drop box. The payout hopper of course 31 ¦ is maintained full to accommodate payout requirements while the 32 drop box ser~es as a repository for coins received in excess 110~635 1 ¦ of the payout hopper capacity. The drop box coins are collected 2 ¦ periodically by the machine owner.
3 ¦ In accordance with one feature of the invention, 4 ¦ there is provided electronic means for generating the addresses 5 ¦ at which the reels are to be stopped,in combination with means 6 for stopping the reels at those respecti~e positions to 7 ¦ substantially eliminate the effect of any mechanical malfunc-8 ¦ tioning of the reels and reel assembly on the selection of the 9 ¦ stopping position. This aspect of the invention is illustrated 10 ¦ in FIG. 4 wherein components c~f similar operation and functioning 11 ¦ are identified with similar numbers as those in FIG. 3.
12 Thus shown in FIG. 4 i5 a coin acceptor 11, an enabling ¦
13 clevice 15 and a reel mechanism 16~ Coins received by the coin 14 acceptor drop either into a payout hopper 25 or a coin drop box 32. A coin diverter mechanism 29 positions a deflector 30 to determine the drop path of the coin.
17 The enabling,device l5 is connected by the conductor 34 18 to a random number generator 35. The enabling device functions 19 to close a switch in the same manner as it closes switches for activating the control logic and also for lighting the various 21 displays (not sho~n) to activate the random number generator.
22 In one embodiment of the invention, this random num~er generator functions continuously at a generating speed of approximately 24 100 numbers per second on the average~ It operates on an algorithm such that the probability of repeating itself theo-2~ retically is extremely small. The generator is set to generate 27 a random number corresponding to each address position or each 28 separate indicia on the reel which in this embocliment is 29 approximately 22 index stop positions. Such random number generators are well-k~own in the electronics art and need not 31 be of special design. It is the random number generated which 32 determines the stopped position for each reel.

~ llQ(1635 1 For proper stopping of the reel, the instantaneous 2 positions of the reel are detected and for that purpose there 3 is provided a reel position detector 360 One embodiment of a 4 suitable reel position detector is illustrated in FIGs. 6 and 7.
Therein is shown a section of an individual reel 13, which 6 rotates about an axis or center shaft 38. The reel generally 7 comprises a flange portion 39 extending from the rim to the 8 center shaft with a peripherally extending cylindrical section 40 9 carrying the indicia which is read by the player. Rotating with each reel is a selector disc 41 which cooperates with a 11 stopping mechanism 42 to stop the reel at any one of the 22 12 address positions. The selector disc includes one trigger slot 44 13 for each address position. The stopping mechanism includes a 14 solenoid 45 which actuates a linkage 46 carrying a bar 47 sized 1 to fit within the trigger slot. Thus by energizing the solenoid 16~ tnrougll the leads 48, the bar 47 is driven into one of the 171 trigger slots to stop rotation of the selector disc and the 18¦ associated reel.
lg¦ The reel position detector 36 comprises a light source or lamp 49 positione~ to one side of the reel 1ange 39 with Zl ¦ an array of photo detectors 50 positioned in alignment with and 22 ~ on the opposite side of the reel from the light source. Each 23 ~ photo sensor is connected by a conductor 51.
24 ¦ Referring to FIG. 6, each of the 22 sectors outlined 25 I by the dotted lines 53 of the reel is divided into an address

26 I section 54 and a decode section 55 separated by the dotted

27 ¦ lines 56. The address and decode information takes the form of

28 ~ precisely positioned holes,translucent areas or light trans-

29 mitting areas 57 in the disc flange ~ith the number, positioning and relative location of these holes being dif~erent for each 31 addr~ss.

.

~ llVC~ti3S

There is positioned in the photo sensor array 50 a sensor (not shown~ in alignment with each area in which a hole 3 can be located in the reel flange for coding purposes. Thus 4 as the address area 54 comes into alignment with the photo sensor array 50 a series of signals is transmitted through the conductor 6 connecting with each photo sensor in alignment with a hole and 7 thereby receiving light from the source 49~ A different voltage level or signal exists in those conductors connecting with g photo ~ensors not in alignment with a hole. Thus there is provided a composite electrical signal corresponding with the 11 address detected and therefore, with the signal position of 12 the reel.
13 In alignment with each address area is a timing slot 58 1 With the alignment of this timing slot with a specific photo 1 sensor in the array provided to detect this slot, a signal is 16¦ transmitted indicating direct alignment of the address coding 1~¦ wlth the photo sensor array and ~hereby indicating that the array 181 should be read at that time. Otherwise if reaa at a different 19 , time the address area might merely be in half alignment with the photo sensor array and erroneous reading would result~
21 Turning now to FIG. 4, the signal from array 51 is Z2 transmitted to a comparator 60, Also the comparator receives 23 through the conductor 61 a signal indicating the random number 2~ generated by the generator 35. The comparator can be of any ~5 standard design which receives a plurality of slgnals and compares ~6 the signals to provide an output through the conductor 62 when 27 the signals correspond.
2~ A circuit diagram of the reel motion and position 29 detector 36 is illustrated schematically in ~IG. 8. Therein are shown three reel motion and position detectors 36, one for 31 each reel 13 of the reel mechanism 17. Photo sensors 62 are 32 eaFh illustrated with the arrows indicating the light which passes through the openings in the reel flange 3~. The emitters o~ the photo sensors are all tied toyether such that by applying the proper signal to one of the terminals X, Y or Z, the photo sensors of that array will be energized so as to detect light passing through the associated reel. Thus a signal is transmitted through each of the conductors 51 corresponding to whether or not an opening in the reel itself falls between the light source and the respective photo sensor. This signal is transmitted along with a timing signal from the photo sensor 63 through the conductor 63A to the comparator 60. This comparator comprises a series of AND gates 65 which receive at the other terminal the timing signal through the conductor 63A. Thus the AND gates can only conduct at the time the timing slot 5~ is aligned with its associated photo sensorl assuring that the photo sensor array is in direct alignment with the address sector of the reel.
Thereafter a signal is transmitted through the AND
gates 65 receiving both the timing and -the photo sensor signal to an EXCLUSIVE/OR gate 66. At the other terminal of each gate 66 are supplied the signals from the random number generator 35 corresponding with the respective number which is generated.
The signal is thus transmitted to the terminals Ac, B , Cc~ Dc and Ec such that when the signals correspond, i.e. if no signal is received at either terminal, or a signal is received at both terminals/ there is a correlation between the number on the reel and the number selected by the random number generator.
Of course if any one of the EXCLUSIVE/OR outputs is at the lower level indicating different signals at the termina~s thereof, no rise in the output signal will occur at the conductor 67.
When all signals received by the EXCLUSIVE/OR gate 66 correspond/ the signal level on the conductor 67 changes indicat-ing the comparator 60 has detected a correlation between the random number generator output and the reel position signaling that the 110~i3~ ;

1 reel should be stopped. Thereafter a stop signal output will 2 be supplied at the tarminal 68 which subsequently is transmitted 3 through the conductor 6~ to the reel stop mechanism 19~
4 Both the address and decode photo sensor arrays include 5 ¦ parity to assure integrity of the data. However, to further 6 insure that the correct decode (of symbol) is representing the 7 actual player visual impression of the stopped reels the address 8 uses ODD parity and the decode uses EVEN parity. That is, due 9 to the indexing wheel design only a correctly positioned stopped reel - with a 5ymbol over "win lines" will be accepted as DECODE
11 data. These parity signals are indicated by the presence of a 12 signal passing through the AND gate 70, the EXCLUSIVE/OR gate 71 13 to the conductor 67. Thus as can be seen, there is provided 14 the schematic for one embodiment of the reel motion and position detector 36 and the comparator 60 which signals when the reel 1~ ~ mechanism must be stopped to make the address correspond to that 17 selected by the random number generator.
18¦ In accordance with another feature of the invention 19 and as shown in FIG. 6, the trigger slots 44 are positioned to stoF the reel with the photo sensor array always in alignment with 21 the decode section 5S of the reel. Thus during the adaress 22 readout the photo sensor array is used to detect the address codes 23 on the reel by use of the timing signal supplied by the presence 24 of the timing slot 58. However upon energization of the reel stop mechanism 19, the toggle bar 47 is driven into the aligned 26 trigger slot 44 for stopping the reel. Because of the specific 27 positioning of each of the trigger slots, the reels are alwa~s 28 stopped with the photo sensor array adjacent the decode section 2g of the reel, which decode section corresponds with the address section at which the xeel was stopped in accordance with the 31 random number generated. Thereafter the reel stop signal is 32 fed to a reel position recorder 80 (FIG. 4) a:Long with the signals 3 from the conductors 51 corresponding to the photo sensor levels.

l As shown in FIG. 8, a reel position reaorder 80 2 recei~es the reel stop signal along with the photo sensor siynals 3 which are passed to a series of AND gates 8l and thereafter 4 to a recorder 82. In this manner the specific signals corres-ponding to the decode code are recorded. The recorder can be 6 of any usual type but preferably is a RAM (random access memory) 7 of capacity sufficient for recording all of the decode signals 8 from each of the individual reels.
9 The purpose for recording these signals is to permit checking of the reel position once all the reels are stopped to 11 make sure the reel positions have not been tampered with. With-out such recording and in prior devices, if access can be gained 13 to the machine interior it is possible to alter the positions of 1 the reels prior to triggering the payout logic thereby obtaining a higher payout than the original reel position requires. However 18 ¦ in the embodiment shown, as each reel is stopped the decode signal (FIG. 5) 171 is transmitted immediately through the conductor 84/~oth to the l8¦; control and payout logic 24A and to the reel position recorder 80.
19 I ~fter all reels are stopped and the control logic is signaled to initiate payout computations, a comparison is made between the 21 reel stopped decode signals xecorded in the reel position recorder 22 80 and the reel decode signals read immediately prior to the 23 payout computation to ascertain that the reel mechanism has not 24 been tampered with or otherwise moved.
2~ Turning now to FIG. 5, there is shown a further 26 embodiment of the invention. As in the past embodiments, there 27 is provided a coin acceptor 11, an enabling device 15r a reel 28 mechanism 16, a reel stop mechanism l9, a coin diverter mechanlsm 29 29, a payout hopper 25, a hopper full sensor 28, a drop box 32, a random number generator 35, a comparator 60 and a reel position 31 recorder 80. Each of those components function in the same 3Z ~I ner as in the embodiment of 7IG; 4.

110~635 1 ¦, In addition, there is provided a switch 85 cannected 2 ¦ to receive through the conductor 86 the enabling signal from 3 the enabling device 15 and a signal through conductor lll from 4 ¦ the reel mechanism indicating the reels have been set into rotation. Both of these signals can be supplied by the closing 6 ¦ of switches in response to the energization of the enabling 7 ¦ device as in present machines and a switch closed by the 8 actuation of the handle 12 causing the rotation of the reels.
With the receipt of these signals the reel position, mechanism is energized to initiate reel position detection. Energization 11 ¦ of the random number generator is also effected through the 12 ¦ conductor 87.
13 ¦ With energization o the reel position detector, a 14 ¦ signal is supplied to switch 88 permitting the transmission of a number from the random number generator to the comparator 16 ¦ causing the initiation of a search for that number by the reel 17 position detector. When a comparison is sensed, the reel stop 18 mechanism is signaled to energize the solenoid 45/and stop the' 19 reel. The same signal serves to set a counter 89 at one count, 20 ¦ which counter in turn causes the random number yenerator to 21 close the switch 88 causing another number to be transmitted to 22 the comparator.
~3 ¦ The sequence is repeated for stopping the individual 24 ¦ reels 13 of the reel mechanism until the counter reaches a predet~rmined count equal to the number of reels in the reel 2& ¦ mechanism. Thereafter through the conductor 90 the control and 27 payout logic are signaled to initiate the payout computation 28 ¦ as in past embodiments. Thus the payout logic is signaled 29 indicating the reel mechanism is now totally at rest, that is, all of the reels have been stopped.
31 With all the reels at rest, the control and payout 32 logic are energized to calculate any payout due the player ~ 110~635 1 because of the alignment of the indicia on the reels~ ~he 2 circuit diagram for the control is sho~n in FIG. 9. With the 3 receipt of the all reel stopped signal from the counter 89, 4 a comparator 94 is energized to receive a reel position signal through the conductor 84 and a reel position recorded signal 6 through the conductor 96 from the reel position recorder 80.
7 These signals are referred to as signal A and signal B and 8 should compare. If they do, a signal is transmitted through 9 the conductor ~7 energizing the comparator 98~ At the same time the payout logic 99 has already received a coins-played 11 signal through the conductor 100 from the coin acceptor 11~
12 Thus a payout signal calculated as a result of receiving the 13 reel position recorded siynal B through the conductor 96 is 14 fed to the comparator 98 which causes the comparator to supply 1 a hopper enable signal through the conductor 101. Thus the 16¦1 comparator 98 thereafter compares the payout logic signal with 171 a coins paid out count signal received back from the pa~out 18¦ hopper through the conductor 102 and so long as these signals lg do not compare, a hopper enable signal is supplied~
At the same time through the conductor 104 a coin 21 reject sig~al is supplied to the coin reject mechamism 103 to Z2 prevent acceptance of any further coins. When the coins paid 23 out si~nal equals the payout signal, the comparator 98 ceases 24 the enable hopper signal. At this point there is supplied through an inverter 105 a game co~pleted signal which is trans-26 mitted to the coin acceptor through conductor 106 enabling 27 the coin acceptor to once again receive coins.
28 During this operating period there is received by 29 the control a hopper condition signal through conductor 107 which changes levels when the hopper full sensor 28 senses 31 that the hopper is in ~act full. The sensor preferably senses 32 ¦ the hopper eight and if the weight exceeds a predetermined I1 110~635 l value, signals that the hopper is full. The game completed 2 signal is fed to an AND gate 108 along with the hopper full 3 signal such that at the end of the game the coin diverter 4 mechanism can be energized to divert the coins from ~alling into th~ payout hopper but instead be deflected to the coin 6 drop box 32.
Thus in accordance with another feature of the ¦ invention, the coin diverter mechanism can only be energized 9 ¦ at the end of a game thexeby preventing any diversion of coins 10 ¦ during the playing of a game or while coins are being paid ll ¦ in succession to start a game sequence. Thus by supplying the 12 ¦ coin diverter signal only at the end of the game and by supply- ¦
15 ¦ ing this same coin diverter signal to the coin acceptor which 14 includes a standard coin counter, the coin diverter is only signaled to change positions at the end of each game and not 16 during the time period when additional coins are being offered 17 to the gaming device. By controlling the coin flow in this 18 manner, there is a positive indication as to which repository, lg i.e. the payout hopper 25 or the drop box 32, receives the coins and an accurate count and inventory can be maintained of 21 the coins that are in each of those containers. By controlling 22 the coin flow in this precise manner, a check can always be 23 maintained as to whether or not the coins in the various 24 repositories correspond to the coins played and thereby indi-2~ cating none have been removed by persons having unauthorized (FIG~ 5) 26 access to the coin repositories. Also shown in thls embodiment /
27 is a coin return box 110 which receives the coins when the 28 coin reject mechanism is energized and returns the coins to the 29 player. This same coin reject mechanism is also energized by the reel mechanism signal indicating the reel has been put into 31 motion and the duplication of these signals is merely to assure 32 that ~he player cannot continue to drop coins into the machine Zi35 1 ¦ aftex play has started by actuation of the handle 12~ The 21 reel mechanism signal is supplied through the conductor 111.
3¦ Thus in accordance with another feature of the ¦ invention, there is displayed both th~e coins played and the 5 ¦ coins paid out after each game. Accordingly there is suppl.ied 6 ¦ to a coins played and payout display 112 signals indicating 7 ¦ the coins played, the coins paid out and the game completed 8 signal as well as the receipt by the coin acceptor of su~ficient 9 coins to energize the enabling device 15. This display continues until the initialization of the subsequent game wherein the 11 display is reset. Such displays are well-known and provide a 12 vijual indication that the player has received the required 13 payout. This display will continue so long as the winning combi-14 nation conkinues on the stopped xeels to enable confirmation that a proper payout was completed in accordance with the combination 16 of indicia on the reel mechanism.
17 1I Thus as can be seen, the circuit of FIG. 5 provides 18 ¦1 a step-by-step assurance that the sequence of play is correct.
19 For instance the reel mechanism must turn before the random number generator is caused to supply a number. Subsequent to 21 this nu~ber generation, the counter must count out prior to the 22 control and the payout logic being eneryized. At the same time 23 the coin reject mechanism is energized to prevent the insertion 24 of further coins. Thereafter the payout hopper is energized and the visual indication is displayed of coins paid out in 26 accordance with the stopped reel mechanism position. Following .
27 payout, the machine signals whether coins received during the 2g next play shall be deposited in the payout hopper or in the 29 drop box and the coin counter is signaled so as to properly credit the coin count to the correct repository. During this 31 period there remains displayed the coins played and the payout 32 resulting from the last game. In addition, unless the reel -16 .

1 stopped position corresponds with the recorded reel stopped 3 position, n payout will occur.

e~

2a ~

Claims (10)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A game apparatus of the type having a set of cyclically rotational movable symbol-bearing members which are activated and set into motion by a player to be subsequently stopped with the alignment of the symbols on the members serving as a determination of the score-award for the game played, comprising in combination:
means activated by the player for setting the symbol-bearing members into motion;
each of the symbol-bearing members having adapted for rotation therewith coding means for defining a predetermined number of possible symbol stopping positions and comprising alternate address and decode information elements for each of said symbols, the address and decode information for each symbol being unique to that symbol;
means for reading the address information indicia for said symbols as the symbol-bearing members pass a pre-determined point in their respective rotational cycles and for detecting the instantaneous position of the symbol-bearing members;
a generator for generating on a random basis numbers corresponding to the address information indicia for the various stopping positions of the symbol-bearing members;
means for selecting a number from the generator and for stopping each symbol-bearing member at the position corresponding to the address information indicia for the random number selected;
means for reading the decode information indicia for each symbol-bearing member after each member is stopped to detect the stopped position of each member and for determining the relative positions of said members;

means for determining the score-award for the game played based on the relative stopped positions of said symbol-bearing members.

2. A game apparatus as defined in claim 1 wherein said alternate address and decode information indicia for each of said symbols comprise a plurality of light transmitting means disposed in alternating sectors of the movable members and having different patterns for each symbol stopping position, said apparatus further comprising a light emitter positioned to emit light onto the light transmitting means and light detecting means for sensing the light from the light transmitting means and signaling the pattern of light to thereby indicate the sector of the movable member from which the light is transmitted, the symbol stopping position of said member and the stopped symbol for score-award determination.

3. A game apparatus as defined in claim 1 wherein the means for selecting a number selects said number for one movable member and stops said movable member at the position corresponding to the number and thereafter sequentially selects numbers and stops each movable member in sequential order.

4. A game apparatus as defined in claim 3 wherein said means for detecting the position of the movable members comprises elements in sectors on each movable member in combination with means for sensing said elements and signaling the member position.

5. A game apparatus as defined in claim 4 wherein said means for detecting the instantaneous position of the movable members comprises groups of openings at each sector of said movable member with the relative positioning of the openings varying to indicate the various positions of the movable members, in combination with light-emitting means and a light detector positioned on opposite sides of the movable member with the light detector generating signals responsive to the positions of the openings in the sector of the movable member aligned between the light-emitting means and the light detector.

6. A game apparatus as defined in claim 5 wherein said movable member sectors each include openings indicating the position of the movable member and openings indicating a code corresponding to the symbol on the movable member corresponding to said position.

7. A game apparatus as defined in claim 6 wherein said means for detecting the position of said movable member detects the openings indicating the position of said movable member during the stopping of the movable member in response to the random number received, and thereafter detects the openings indicating the code corresponding to the symbol for detecting the stopped position of the movable member for determining the score-award for the game.

8. A game apparatus as defined in claim 1 wherein said movable members comprise a set of reels and said means for selecting said random numbers selects a first number and stops a first reel at a position corresponding to that number and thereafter sequentially selects numbers and stops a corresponding reel until all of the reels are brought to an at-rest position.

9. A game apparatus as defined in claim 8 including means for recording the code corresponding to the at-rest position of each reel as the reel is stopped.

10. A game apparatus as defined in claim 9 wherein said means for determining the score award of the game compares the code of the reels in the stopped position and the recorded code for the reels in the at-rest position and makes such score-award determination only if said codes correspond.