METHOD OF LOCATING RANK AND SUIT SYMBOLS ON CARDS

• US 20100019449A1
• Filed: 09/21/2009
• Published: 01/28/2010
• Est. Priority Date: 06/13/2005
• Status: Active Grant

• Current Assignee: LNW Gaming Incorporated (Light & Wonder Incorporated)
• Original Assignee: SHFL Entertainment Incorporated (Light & Wonder Incorporated)
• Inventors: Downs, Justin G. III, Roberts, James R., Walsh, Sion D.
• Granted Patent: US 7,933,444 B2
• Time in Patent Office: Days
• US Class Current: 273/149.R
• 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

1-34. -34. (canceled)

35. A method of reading rank and suit of a card, comprising:

providing a card handling device, the card handling device having a card storage area and a card scanning area;

placing cards into the card storage area;

moving cards individually from the card storage area into the card scanning area;

determining a location of rank and suit symbols printed on cards to be scanned by means of column sums; and

determining the card rank and suit of each card by inputting information outputted from the scanner into a hardware component, extracting data from the scanner output, comparing the extracted data to stored data and determining rank and suit from correlating the extracted data to stored data.

36. The method of claim 35, wherein the card handling device is a shoe.

37. The method of claim 35, wherein cards are moved manually into the card scanning area.

38. The method of claim 35, wherein the scanner is activated by means of a position sensor.

39. The method of claim 38, wherein the position sensor senses a distance a card moves.

40. The method of claim 38 wherein the position sensor senses a presence of a card.

41. The method of claim 38 wherein the position sensor senses both the presence of a card and a distance the card moves.

42. The method of claim 38 wherein the position sensor senses an absence of a card.

43. The method of claim 35, wherein the information outputted from the scanner represents a sample of the scanned card rank and suit indicia.

44. The method of claim 35, wherein spaced line scans are captured by the scanner.

45. The method of claim 35, wherein the stored data comprises stored vector sets representing rank and suit.

46. The method of claim 35, wherein cards are automatically moved past the scanner.

47. The method of claim 45, wherein column sums that are low indicate an absence of a symbol.

48. The method of claim 35, wherein the scanned data is compared by stored data and a rank and suit value is determined by means of vector shifting.

49. The method of claim 35, wherein the scanned data is compared to stored data and an error correction function is used to identify rank and suit.