Card shuffling apparatus with automatic card size calibration
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A63F-001/12
A63F-001/00
출원번호
US-0926508
(2004-08-26)
등록번호
US-7384044
(2008-06-10)
발명자
/ 주소
Grauzer,Atilla
Bourbour,Feraidoon
Kelly,James V.
Nelson,Troy D.
Scheper,Paul K.
Stasson,James B.
Swanson,Ronald R.
출원인 / 주소
Shuffle Master, Inc
대리인 / 주소
Mark A. Litman & Associates, P.A.
인용정보
피인용 횟수 :
96인용 특허 :
92
초록▼
A card shuffling device includes a top surface, a card receiving area for receiving an initial set of playing cards, a randomizing or arranging system for the initial set of playing cards, a collection surface in a card collection area for receiving randomized playing cards, the collection surface r
A card shuffling device includes a top surface, a card receiving area for receiving an initial set of playing cards, a randomizing or arranging system for the initial set of playing cards, a collection surface in a card collection area for receiving randomized playing cards, the collection surface receiving cards positioned so that all cards collected are below the top surface of the device, and an elevator for raising the collection surface so that at least some randomized cards are elevated above the top surface of the device. An automatic card shuffler includes a microprocessor with memory. An automated calibration system is provided that calibrates the precise position of the card supporting platform in the elevator so that precise insertion of cards can be performed during card handling procedures. A preferred method operates by a position of the elevator being randomly selected and the support surface is moved to the selected position, and after the gripping arm grasps at least one side of the cards, the elevator lowers, creating a space beneath the gripping arm, wherein a card is moved from the infeed compartment into the space, thereby randomizing the cards.
대표청구항▼
The status of the claims as follows: 1. A method for calibrating a card handling device with a card receiving area and a card stacking area comprising an elevator with a card support platform and grippers, the method comprising: automatically defining a gripping position on cards in the stacking ar
The status of the claims as follows: 1. A method for calibrating a card handling device with a card receiving area and a card stacking area comprising an elevator with a card support platform and grippers, the method comprising: automatically defining a gripping position on cards in the stacking area, and automatically identifying an elevator height tat corresponds to a height at which a single card on the card support platform is gripped, and where movement of the platform to a lower position of at least two card thicknesses would not allow even a single card to be gripped off the card support platform. 2. The method of claim 1 wherein automatically defining a gripping position on cards in the stacking area is performed by first gripping at least one card by moving a pair of grippers into a first contact position with said at least one card, then lowering the platform and sensing that the at least one card remains supported by the grippers at the first contact position. 3. The method of claim 2 wherein if the at least one card remains supported by the grippers at the first contact position, raising the elevator, releasing the at least one card to be supported by the platform, ten moving the grippers to a second contact position that has a greater distance of separation between the grippers than the separation distance between the grippers at the first contact position, yet with the grippers still in contact with said at least one card then lowering the platform and sensing whether or not the at least one card remains supported by the grippers at the second contact position. 4. The method of claim 3 wherein a sequence of steps of gripping the at least one card at increasingly distant separation positions between the grippers is repeated until the at least one card does not remain supported by the gripper, this position being identified as beyond a working limit distance of grippers where at least one card can be supported by the grippers. 5. The method of claim 3 wherein the grippers are capable of moving in increments of a first defined distance between grippers, and the greater distance of separation between the grippers in the second contact position and the first contact position exceeds at least two increments. 6. The method of claim 5 wherein the grippers are capable of moving in increments of a first defined distance between grippers, and the greater distance of separation between the grippers in the second contact position and the first contact position exceeds at least two increments. 7. The method of claim 6 wherein the grippers are capable of moving in increments of a first defined distance between grippers, and the greater distance of separation between the grippers in the second contact position and the first contact position is at least five increments. 8. The method of claim 7 wherein after the position identified as beyond a working limit distance of grippers has been determined, raising the elevator, releasing the at least one card, then moving the grippers to grip the at least one card with a separation distance between grippers that is at least one increment less than the separation distance beyond the working limit distance of grippers. 9. The method of claim 8 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 10. The method of claim 9 wherein exactly one or two cards are used as the at least one card. 11. The method of claim 10 wherein after a position of elevator height is determined where the at least one card is not gripped by the grippers, the elevator is raised by at least one increment from the position of elevator height where the at least one card is not gripped by the grippers and the grippers move to attempt to grip the at least one card. 12. The method of claim 7 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 13. The method of claim 6 wherein after the this position identified as beyond a working limit distance of grippers has been determined, raising the elevator, releasing the at least one card, then moving the grippers to grip the at least one card with a second separation distance between grippers that is at least one increment less than the separation distance beyond the working limit distance of grippers. 14. The method of claim 13 wherein subsequent steps of moving the grippers to grip the at least one card with a separation distance between grippers that is at least one increment less than the separation distance beyond the working limit distance of grippers are repeated until an optimum gripping position is automatically determined based upon predetermined standards. 15. The method of claim 13 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 16. The method of claim 15 wherein exactly one or two cards are used as the at least one card. 17. The method of claim 16 wherein after a position of elevator height is determined where the at least one card is not gripped by the grippers, the elevator is raised by at least one increment from the position of elevator height where the at least one card is not gripped by the grippers and the grippers move to attempt to grip the at least one card. 18. The method of claim 5 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 19. The method of claim 6 wherein a) automatically identifying an elevator height tat corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 20. The method of claim 3 wherein the grippers are capable of moving in increments of a first defined distance between grippers, and the greater distance of separation between the grippers in the second contact position and the first contact position is at least five increments. 21. The method of claim 20 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 22. The method of claim 3 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card Support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 23. The method of claim 1 wherein a) automatically identifying an elevator height that corresponds to a height at which a single card on the card support platform is gripped, and b) movement of the platform to a lower position of at least two card thicknesses that would not allow even a single card to be gripped off the card support platform is performed by repeated steps of raising the elevator, gripping the at least one card, and lowering the elevator until the at least one card is not gripped by movement of the grippers. 24. The method of claim 23 wherein exactly one or two cards are used as the at least one card. 25. The method of claim 24 wherein after a position of elevator height is determined where the at least one card is not gripped by the grippers, the elevator is raised by at least one increment from the position of elevator height where the at least one card is not gripped by the grippers and the grippers move to attempt to grip the at least one card. 26. A method of randomizing a group of cards with a card handling device after calibrating the device in accordance to claim 1, comprising the steps of: placing a group of cards to be randomized into a card infeed fray; removing cards individually from the card infeed tray and delivering the cards into a card stacking area, the card stacking area having a moveable lower surface, and a stationary opening for receiving cards from the infeed tray; elevating the moveable lower surface to a randomly determined height; securing at least one edge of a group of cards in the card stacking area at a point just above the stationary opening; lowering the moveable lower surface to create an opening in a stack of cards being formed in the card stacking area, the opening located just beneath a lowermost point where the cards are secured; and inserting a card removed from the infeed tray into the opening. 27. The method of claim 26, wherein after a card has been inserted, and when a presence of additional cards in the card infeed tray is sensed, a segment of cards is supported and the elevator moves to another and lower randomly determined height, creating another opening for insertion of the additional cards. 28. A method of arranging a group of cards into a desired order in a computer controlled automatic card shuffler after calibrating the card shuffler according to the method of claim 1, the card shuffler comprising an infeed tray, a feed mechanism, a card arranging area, a retaining device for suspending cards in the card shuffling area, a lower support surface in the card arranging area and an elevator for raising and lowering the lower support surface, the method comprising: assigning each card in the infeed tray a final order; feeding each card individually into the card arranging area, wherein the lower support surface is lowered beneath an elevation of the card feed mechanism when the computer instructs that the card being fed is to be placed on top of the stack, suspending all cards in the card shuffling area by means of the retaining device when the computer instructs that the card being fed is to be placed on the bottom of the stack, and instructing the elevator to move, causing the lower support surface to adjust to a preselected elevation, retaining a subgroup of cards above a feed elevation and lowering the lower support surface, creating an opening, and placing a card between the subgroup of suspended cards and the remaining cards supported by the lower support surface. 29. The method of claim 28, wherein the final order is random. 30. The method of claim 28, wherein the final order is predetermined. 31. The method of claim 28 and further comprising the step of reading a suit and rank of each card prior to feeding the cards into the card arranging area. 32. A method of automatically calibrating a card shuffler to accommodate dimensions of cards to he shuffled, the steps including at least: inserting cards into a card shuffler, automatically sensing at least one dimension of a card height a card width, and a card thickness of at least one card from said cards inserted into the card shuffler, automatically adjusting at least one component in the card shuffler to accommodate the at least one dimension sensed, and shuffling the cards. 33. The method of claim 32 wherein exactly one or two cards are used as the at least one card. 34. The method of claim 32 wherein automatically sensing comprises defining a gripping position on cards in a stacking area is performed. 35. The method of claim 34 wherein defining a gripping position is performed by first gripping at least one card by moving a pair of grippers into a first contact position with said at least one card, then lowering a platform and sensing that the at least one card remains supported by the grippers at a first gripping position.
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이 특허에 인용된 특허 (92)
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