Manual dealing shoe with card feed limiter

• US 7,593,544 B2
• Filed: 05/03/2006
• Issued: 09/22/2009
• Est. Priority Date: 06/13/2005
• Status: Expired due to Fees

• Current Assignee: Sg Gaming, Inc. (Scientific Games Corporation)
• Original Assignee: SHFL Entertainment Incorporated (Scientific Games Corporation)
• Inventors: Downs, Justin G. III, Roberts, James R., Walsh, Sion D.
• Primary Examiner(s): Chawan; Sheela C
• Application Number:
  US11/417,894
• Publication Number:
  US 20060279040A1
• Time in Patent Office: 1,238 Days
• Field of Search: 273/149.R, 273/292, 273/274, 273/149.P, 273/309, 273/303, 273/148.R, 273/148.A, 463/13, 463/11, 463/29, 463/12, 463/16, 209/587, 209/547, 209/939, 382/100
• US Class Current: 382/100
• CPC Class Codes: A63F 1/14 Card dealers
• CPC Class Codes: A63F 2009/2425 Scanners, e.g. for scanning regular characters

Abstract

A playing card delivery shoe is used in the play of the casino table card game of baccarat or blackjack or any game where cards are pulled one at a time from the shoe. The apparatus comprises a reader or an imager that scans lines bisecting the image at spaced intervals. The scanning occurs on playing cards in at least the region where suit and rank symbols are provided. The scanner output is a series of voltages that are converted to binary information. This binary information is compared to stored binary information to determine rank and suit. The upper surface of the output end of the shoe contains a partial barrier for cards being scanned. The partial barrier has an elevated surface and limits a size of a pathway so that only one card can be removed at a time.

Claims

1. An apparatus for the determination of at least one of rank or suit of a playing card comprising:

a container from which cards are individually removed for delivery to a card game;

at least one line scanner within the container or at an exit end of the container;

wherein the line scanner provides a signal when playing cards are moved over the reading system or imaging system,

wherein the signal is communicated to a hardware component that identifies at least one of rank and suit from the signal and transmits data indicating the at least one of rank or suit so that the at least one of rank or suit can be identified;

wherein the container includes a card exit end, and a partial barrier is provided proximate the card exit end to reduce size of an opening through which an exiting card can pass.

2. The apparatus of claim 1, wherein the container is a nonmechanized shoe and the partial barrier is adjustable to accommodate a thickness of a playing card.

3. The apparatus of claim 1, wherein the container is a mechanized shoe and the partial barrier is adjustable to accommodate a thickness of a playing card.

4. The apparatus of claim 1, wherein the container is a shoe, and wherein the line scanner is located at an exit end of the shoe.

5. The apparatus of claim 4, wherein cards are scanned as the card is manually removed from the shoe.

6. The apparatus of claim 4, wherein suit and rank is identified in real time.

7. The apparatus of claim 4, wherein the container includes an exit end, and a partial barrier is provided proximate the exit end to reduce a size of an opening for an exiting card to pass.

8. The apparatus of claim 7, wherein the partial barrier is adjustable in height, adjusting a size of the opening.

29. The apparatus of claim 1, and further comprising a light source for the line scanner selected from the group consisting of green and blue light.

9. An apparatus for reading symbols from playing cards in which playing cards are manually removed from a chute having an upper interior surface and a lower support surface, the apparatus comprising:

a line scanner that scans lines bisecting images printed on playing cards at spaced intervals in at least the region where suit and rank symbols are provided on the playing cards and output signals are converted into binary data used to identify at least one of a suit or rank of the playing card imaged, wherein the upper interior surface has a partial barrier for cards fixed over the interior surface, the partial barrier having an elevated surface, the elevated surface defining a height of a pathway for cards between the upper interior surface and the lower support surface.

10. The apparatus of claim 9 wherein the acquired binary data is compared to stored binary data to determine rank and suit.

11. The apparatus of claim 10 wherein the line scanner comprises a contact image system.

12. The apparatus of claim 9 wherein the binary data is inputted to a FPGA or ASIC and is compared to reference vector sets to determine at least one of a suit or rank of the playing card imaged.

13. The apparatus of claim 9 wherein the binary data is correlated with known signals within a hardware component to identify the at least one of a suit or rank of the playing card imaged.

30. The apparatus of claim 9, wherein a monochromatic light source is used to illuminate an imaged scanned by the scanner.

31. The apparatus of claim 30, wherein the monochromatic light source is selected from the group consisting of green light and blue light.

14. An apparatus for reading symbols from playing cards comprising:

a contact image line scanner, the scanner comprising;

a motion scanner, and

a line scanner, the motion scanner triggering operation of the line scanner to provide signals from spaced line scans of playing card symbols passed over the scanner, wherein signals from the motion scanner and line scanner are fed into a hardware component that generates a vector corresponding to the image and

wherein the apparatus is mounted in a card delivery device with an exit opening, and further comprising an adjustable partial barrier within the exit opening to limit a number of cards exiting to one by changing height within the exit opening.

15. The apparatus of claim 14 wherein the line scanner comprises a contact image sensor.

16. The apparatus of claim 14 wherein the contact image line scanner provides multiple spaced line scans of the playing card symbols.

17. The apparatus of claim 14 wherein the signals are provided to a hardware component selected from the group consisting of a FPGA and an ASIC to form a vector set corresponding to the image.

18. The apparatus of claim 14, wherein the partial barrier is adjustable.

32. The apparatus of claim 14, wherein the line scanner utilizes a monochromatic light source.

33. The apparatus of claim 32, wherein the monochromatic light source is selected from the group consisting of green light and blue light.

19. A method of identifying the rank and suit of a playing card comprising:

manually pulling a playing card through a pathway having an upper plate with an interior surface;

a reader automatically taking spaced line scans of rank and suit symbols on the playing card as the playing cards are pulled out of the pathway, generating scan signals,

a processor correlating scan signals and known signals to identify the rank and suit by closest correlation of the operating symbols and the known symbols, and

limiting a size of the pathway by an at least partial barrier so that no more than one card can exit from the pathway at a time.

20. The method of claim 19 wherein a size of the pathway is adjustable by adjusting height on the at least partial barrier.

21. The method of claim 19 where the spaced line scans are triggered automatically by a motion sensor.

22. The method of claim 19 wherein the scan signals comprise an analog signal that is converted to a binary signal within the scanner.

23. A method for identifying suit and rank on playing cards comprising:

manually pulling a card through a pathway having a height defined by a lower support surface and a partial barrier supported on an interior surface of a front plate, the partial barrier inside the pathway limiting passage of cards through the pathway to one card at a time,

passing symbols on a playing card over a line scanner while part of the playing card is under the partial barrier,

taking spaced line scans of the symbols,

providing signals from the scanner, and

a processor identifying suit and rank of the playing card based upon the signals.

24. The method of claim 23 wherein the partial barrier is adjusted to change the height of the pathway before a card is pulled through the pathway.

25. The method of claim 23 wherein identifying suit and rank based upon the signals comprises providing a voltage signal indicative of a gray scale value within a range of gray scale values and converting the voltage into a binary number.

26. The method of claim 23, wherein a monochromatic light source is used to provide light to the imager.

27. The method of claim 23, wherein a monochromatic green light source is used.

28. The method of claim 23, wherein a monochromatic red light source is used.