# US 10,245,502 B2 · Shuffled playing cards and manufacturing method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,502 B2 - Document ID: US10245502B2 - Status: Granted - Kind: B2 - Application number: 15/840,351 - Filed: 2017-12-13 - Published: 2018-04-12 - Granted: 2019-04-02 - Earliest claimed: 2007-11-27 - Assignees: Angel Playing Cards Co., Ltd. - Applicants: Angel Playing Cards Co., Ltd. - Inventors: Yasushi Shigeta - Web page: https://patentgrep.com/patent/US10245502B2 ## CPC - A63F 1/02: Cards; Special shapes of cards - A63F 1/10: Card holders - A63F 1/12: Card shufflers - A63F 1/18: Scoring or registering devices; Indicators (A63F1/16 takes precedence) - A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR ## Abstract Systems and methods for monitoring shuffled playing cards. A shuffled card ID is associated with the one or more shuffled decks of playing cards. Each card delivered by a card feeder from the one or more shuffled decks of playing cards is inspected. It is determined whether there is a defect in the arrangement of the one or more shuffled decks of playing cards. Upon a condition that a shuffled deck of playing cards is determined to be defective, at least one of discarding the defective shuffled deck of playing cards or preventing a recurrence of a defect found within the defective shuffled deck of playing cards. ## Claims ### Claim 1 A method of inspecting one or more shuffled decks of playing cards, wherein each of the one or more shuffled decks of playing cards are shuffled at random, the method comprising the steps of: associating, by a process control system having one or more processors, a shuffled card ID with the one or more shuffled decks of playing cards, wherein the shuffled card ID is unique for the one or more shuffled decks of playing cards packaged in an individual package and the shuffled card ID comprises information about a manufacture or delivery of the one or more shuffled decks of playing cards; inspecting, by at least one of a card sensor and a camera, each card delivered by a card feeder from the one or more shuffled decks of playing cards; and determining whether there is a defect in an arrangement of the one or more shuffled decks of playing cards, wherein the step of determining whether there is a defect in the arrangement of the one or more shuffled decks of playing cards comprises determining whether there is a special arrangement in a shuffling of the one or more shuffled decks of playing cards. ### Claim 2 (depends on 1) The method according to claim 1, wherein the special arrangement in the shuffling of the one or more shuffled decks of playing cards comprises a number of times at least one kind of card appears in a predetermined number of cards being more than a total number of the shuffled decks of playing cards. ### Claim 3 (depends on 1) The method according to claim 1, wherein the determining of whether there is a special arrangement in the shuffling of the one or more shuffled decks of playing cards comprises determining a relative arrangement of a predetermined number of the cards. ### Claim 4 (depends on 3) The method of claim 3, wherein the step of determining the relative arrangement comprises determining one or both of (a) a rank and (b) a suit of each of the predetermined number of cards drawn in sequence from a card housing unit. ### Claim 5 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether the ranks of cards increase or decrease in order. ### Claim 6 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether all of the predetermined number of cards have the same rank. ### Claim 7 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether all of the predetermined number of cards are of the same suit. ### Claim 8 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether a repeating sequence of a rank or a suit is present within the predetermined number of cards. ### Claim 9 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether the determined relative arrangement matches a pre-stored relative arrangement. ### Claim 10 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether each of the predetermined number of cards has the same rank and is of the same suit as compared to a respective corresponding card in a preceding deck of cards in a set. ### Claim 11 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises determining whether each of the predetermined number of cards has the same rank and is of the same suit as compared to a respective corresponding card in a preceding set of cards checked in a previous detection. ### Claim 12 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises reading a code on each of the cards that indicates the one or both of (a) the rank and (b) the suit of the card. ### Claim 13 (depends on 12) The method according to claim 12, wherein the step of determining whether there is a defect in the arrangement of the one or more shuffled decks of playing cards comprises comparing the code with a predetermined code stored in a memory. ### Claim 14 (depends on 4) The method according to claim 4, wherein the step of determining the relative arrangement comprises reading an authenticity determination code on each the cards. ### Claim 15 (depends on 14) The method according to claim 14, wherein the step of determining whether there is a defect in the arrangement of the one or more shuffled decks of playing cards comprises comparing the authenticity determination code on each of the cards with a predetermined authenticity determination code stored in the memory. ### Claim 16 (depends on 1) The method according to claim 1, wherein upon a result of the determining being a detection of presence of the defect, operating a lock member to restrict movement of the cards. ### Claim 17 (depends on 1) The method according to claim 1, wherein the step of determining whether there is a defect in the arrangement of the one or more shuffled decks of playing cards comprises determining whether there is a smudge on one of the inspected cards. ### Claim 18 (depends on 1) The method according to claim 1, wherein the step of determining whether there is a defect in the arrangement of the one or more shuffled decks of playing cards comprises determining whether one or more of the inspected cards has been improperly cut. ### Claim 19 (depends on 1) The method according to claim 1, wherein each of the one or more shuffled decks of playing cards is contained within a card shoe apparatus. ### Claim 20 (depends on 1) The method according to claim 1, wherein each of the one or more shuffled decks of playing cards is contained within a corresponding package having a sealing label, and the shuffled card ID associated with the one or more shuffled decks of playing cards is attached to the package. ### Claim 21 (depends on 20) The method according to claim 20, wherein the shuffled card ID is associated with production information of the one or more shuffled decks of playing cards, and the production information is related to identification of a manufacturing line used to shuffle the one or more decks of shuffled playing cards. ### Claim 22 (depends on 20) The method according to claim 20, wherein the shuffled card ID associated with the one or more shuffled decks of playing cards is attached to the sealing label. ### Claim 23 (depends on 20) The method according to claim 20, wherein the shuffled card ID is a bar code, RFID tag, RF tag or two-dimensional matrix code. ### Claim 24 (depends on 20) The method according to claim 20, wherein the shuffled card ID is further associated with a product type of the one or more shuffled decks of playing cards, shipment information or customer information. ### Claim 25 (depends on 20) The method according to claim 20, wherein each shuffled card ID is registered in a database by associating the shuffled card ID with information related to a shuffling machine or a shuffling machine group used to shuffle the one or more shuffled decks of playing cards to which the shuffled card ID is attached. ### Claim 26 (depends on 20) The method according to claim 20, wherein a predetermined number of shuffled decks of playing cards are individually packaged.