# US 12,008,868 B2 · Card game with counting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,008,868 B2 - Document ID: US12008868B2 - Status: Granted - Kind: B2 - Application number: 17/705,451 - Filed: 2022-03-28 - Published: 2022-09-08 - Granted: 2024-06-11 - Earliest claimed: 2008-01-10 - Assignees: Cfph, LLC - Applicants: Cfph, LLC - Inventors: Lee Amaitis; Kevin Burman; Manu Gambhir - Web page: https://patentgrep.com/patent/US12008868B2 ## CPC - G07F 17/3293: {Card games, e.g. poker, canasta, black jack} - A63F 3/00157: {Casino or betting games (horse races A63F3/00082)} - A63F 2001/003: {Blackjack; Twenty one} - G07F: COIN-FREED OR LIKE APPARATUS (coin sorting G07D3/00; coin testing G07D5/00; {handling coins or paper currencies apart from payment activated apparatus G07D; payment architectures, schemes or protocols G06Q20/00}) - A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR ## Abstract Various embodiments include determining a value of a statistic describing cards that have been dealt from a deck and modifying the rules of a game based on the statistic. ## Claims ### Claim 1 An apparatus comprising: a computing device configured to be coupled to a card table, in which the computing device includes a processor and a non-transitory medium having stored thereon a plurality of instructions that are executable by the processor; and an optical sensor configured to be coupled to a card shoe and configured to hold a plurality of playing cards, in which the optical sensor is configured to generate an image of cards of the plurality of playing cards as the cards are drawn from the card shoe and communicate identifying information to the computing device; in which the computing device is configured to: determine a number of players in a card game at the card table; control a display of a mobile computing device of at least one player of the card game at the card table to present rules of the card game and an option to wager on an intermediate event in the card game after a card has been drawn from the card shoe and while the card game is being played; receive from the sensor an indication that a card has been drawn from the card shoe, the indication including an identity of the drawn card; receive, from the at least one player, a request for a statistic describing the card game played at the card table; determine an updated value of the statistic based at least in part on the identity of the drawn card; adjust the rules of the card game by an adjustment when the updated value of the statistic is at least one of greater than a first threshold value and less than a second threshold value; and control the display to present the rules of the card game, as adjusted, and an outcome of a wager on the intermediate event. ### Claim 2 (depends on 1) The apparatus of claim 1, in which the statistic represents an advantage for a house in the card game. ### Claim 3 (depends on 1) The apparatus of claim 1, in which the adjustment includes an adjustment that maintains a house edge associated with play of the card game. ### Claim 4 (depends on 1) The apparatus of claim 1, in which the rules include at least one of a rule controlling payouts for winning, a rule controlling which outcomes are winning outcomes, a rule controlling which outcomes are tie outcomes, a rule controlling decisions available to a player, a rule controlling actions of a dealer, a rule controlling procedures of at least one given card game, a rule controlling value of cards, or a rule controlling allowed bets. ### Claim 5 (depends on 1) The apparatus of claim 1, in which the rules include a rule allowing at least one of discarded cards to be added to the playing cards and additional cards to be added to the playing cards. ### Claim 6 (depends on 1) The apparatus of claim 1, in which the computing device is configured to transmit an indication that a rule adjustment is due. ### Claim 7 (depends on 1) The apparatus of claim 1, in which the computing device is configured to at least partially randomly determine the first threshold value. ### Claim 8 (depends on 1) The apparatus of claim 1, in which the rules include a rule governing surrender in the card game. ### Claim 9 (depends on 1) The apparatus of claim 1, in which the adjustment is based, at least in part, on at least one statistic other than the statistic. ### Claim 10 (depends on 1) The apparatus of claim 1, in which the adjustment includes an adjustment configured to offset at least one of an increase and a decrease in an advantage of a house in the card game. ### Claim 11 (depends on 1) The apparatus of claim 1, in which the adjustment includes a change to a probability of an outcome in the card game. ### Claim 12 (depends on 1) The apparatus of claim 1, in which the statistic includes a card count. ### Claim 13 (depends on 1) The apparatus of claim 1, in which the adjustment includes at least one of (i) an addition of at least one card to the plurality of playing cards, (ii) revaluing at least one card of the plurality of playing cards, (iii) a change to an allowed bet amount; or (iv) an adjustment to maintain at least a minimum house edge in the card game. ### Claim 14 (depends on 1) The apparatus of claim 1, in which the computing device is configured to determine that a house edge is below a desired value based on the updated value of the statistic and in which the adjustment includes an adjustment that increases the house edge above the desired value. ### Claim 15 (depends on 1) The apparatus of claim 1, in which the cards include a card that is used to play the card game. ### Claim 16 (depends on 1) The apparatus of claim 1, in which the statistic represents an advantage for a house in the card game and a card count. ### Claim 17 (depends on 1) The apparatus of claim 1, in which the statistic represents an advantage for a house in the card game and a percentage. ### Claim 18 (depends on 1) The apparatus of claim 1, in which the adjustment includes an adjustment allowing at least one of discarded cards to be added to the playing cards and additional cards to be added to the playing cards. ### Claim 19 (depends on 1) The apparatus of claim 1, in which the adjustment includes an adjustment allowing at least one of discarded cards to be added to the playing cards and additional cards to be added to the playing cards and in which the adjustment includes at least one of an adjustment controlling payouts for winning, an adjustment controlling which outcomes are winning outcomes, an adjustment controlling which outcomes are tie outcomes, an adjustment controlling decisions available to a player, an adjustment controlling actions of a dealer, an adjustment controlling procedures of the card game, an adjustment controlling value of cards, or an adjustment controlling allowed bets. ### Claim 20 (depends on 1) The apparatus of claim 1, in which the adjustment includes an adjustment allowing at least one of discarded cards to be added to the playing cards and additional cards to be added to the playing cards and changing a probability of an outcome in the card game.