I think i have found the patent which describes how CSM, ASM, etc "cheat"
https://patents.google.com/patent/US5431399A/en
Look at all the companies who cite this patent, and ask yourself how many people use this for the game bridge in any casino? (i mean i have no knowledge of bridge in a casino?)
1. It may be the desire of the participants in a bridge session to constrain the random distribution of cards. For example, they may wish to primarily produce hands that will produce game bids, or hands that favor no-trump bidding, or hands that have unusual distributions, etc. Or they might wish to establish a constraint that both pairs in the game will, over the course of the session, receive approximately the same number of "high cards".
f) to provide for operation in a variety of different modalities (e.g., to produce random distributions, or distributions subject to certain constraints, or specific distributions).
SUMMARY OF THE INVENTION
The present invention provides a means for (a) shuffling and distributing cards in a random manner, or (b) distributing cards in a predetermined manner. The device is intended to operate with ordinary "bridge-size" cards. In addition to a deck of cards, the system will have a small number of cards called "program" cards. While the same size as ordinary playing cards, these cards are specially encoded so as to indicate to the device in what modality it should operate. For example, one such program card could be an instruction to the device to randomly distribute a deck of cards (hereinafter referred to as the "random" distribution modality). The user would insert into the device an unordered deck of cards with this program card at the bottom. The device would first read the program card; generate internally a random distribution for the hands; and then cause the deck of cards to be distributed appropriately to reflect the desired distribution.
As another example, another program card might be an instruction to generally generate "gamegoing" hands (these are hands where the distribution of high cards is primarily distributed to one pair rather than another, thus allowing them to win most of the tricks). As before, the user would put this program card at the bottom of the deck. The device would read the program card; then generate internally a quasi-random distribution subject to the constraint that the high cards be appropriately allocated to one of the two pairs; and then distribute the cards. We note that the program card need not be passed through the machine each time a new distribution of cards is desired; the modality of the prior distribution will be continued unless overridden by a subsequent program card. (This modality is referred to hereafter as the "restricted" distribution modality).
In addition to distribution along these lines (random or restricted), the other modality can be called predetermined In this case an exact distribution is desired. A program card can be prepared that indicates how every card in a particular hand is to be distributed. That card is placed at the bottom of the deck; the device reads it and then uses that information to distribute the balance of the cards. A variant of this modality is the duplicate bridge game where there would a shuffling/distribution device at each table. In this case it is (generally) not important for particular distributions to be created, but it is important that the totality of hands for the session be identical whenever played (the table at which hands are played, and the pairs playing them will vary). This could be accomplished by "seeding" the random generator for each device to the same value; then whatever hands were generated to constitute the hands for the session would be the same from table to table. Seeding could proceed by following a "seeding" program card with a randomly mixed set (or subset) of playing cards; the sequence of those cards would establish an initial value for the random generation function. After being read by one device, the seeding program card and randomly mixed set of playing cards could be moved to another machine, and the process repeated there. Alternatively, the removable memory means in the device could be programmed with the desired distributions prior to the start of the session.
After the system determines a desired distribution the system operates to distribute the cards. Two embodiments of the current invention are described herein: (a) the four-way system, and (b) the lateral system.
cliff notes please!!!Quote: heatmap"Card shuffling and dealing apparatus"
https://patents.google.com/patent/US5431399A/en
Look at all the companies who cite this patent, and ask yourself how many people use this for the game bridge in any casino? (i mean i have no knowledge of bridge in a casino?)
1. It may be the desire of the participants in a bridge session to constrain the random distribution of cards. For example, they may wish to primarily produce hands that will produce game bids, or hands that favor no-trump bidding, or hands that have unusual distributions, etc. Or they might wish to establish a constraint that both pairs in the game will, over the course of the session, receive approximately the same number of "high cards".
f) to provide for operation in a variety of different modalities (e.g., to produce random distributions, or distributions subject to certain constraints, or specific distributions).
SUMMARY OF THE INVENTION
The present invention provides a means for (a) shuffling and distributing cards in a random manner, or (b) distributing cards in a predetermined manner. The device is intended to operate with ordinary "bridge-size" cards. In addition to a deck of cards, the system will have a small number of cards called "program" cards. While the same size as ordinary playing cards, these cards are specially encoded so as to indicate to the device in what modality it should operate. For example, one such program card could be an instruction to the device to randomly distribute a deck of cards (hereinafter referred to as the "random" distribution modality). The user would insert into the device an unordered deck of cards with this program card at the bottom. The device would first read the program card; generate internally a random distribution for the hands; and then cause the deck of cards to be distributed appropriately to reflect the desired distribution.
As another example, another program card might be an instruction to generally generate "gamegoing" hands (these are hands where the distribution of high cards is primarily distributed to one pair rather than another, thus allowing them to win most of the tricks). As before, the user would put this program card at the bottom of the deck. The device would read the program card; then generate internally a quasi-random distribution subject to the constraint that the high cards be appropriately allocated to one of the two pairs; and then distribute the cards. We note that the program card need not be passed through the machine each time a new distribution of cards is desired; the modality of the prior distribution will be continued unless overridden by a subsequent program card. (This modality is referred to hereafter as the "restricted" distribution modality).
In addition to distribution along these lines (random or restricted), the other modality can be called predetermined In this case an exact distribution is desired. A program card can be prepared that indicates how every card in a particular hand is to be distributed. That card is placed at the bottom of the deck; the device reads it and then uses that information to distribute the balance of the cards. A variant of this modality is the duplicate bridge game where there would a shuffling/distribution device at each table. In this case it is (generally) not important for particular distributions to be created, but it is important that the totality of hands for the session be identical whenever played (the table at which hands are played, and the pairs playing them will vary). This could be accomplished by "seeding" the random generator for each device to the same value; then whatever hands were generated to constitute the hands for the session would be the same from table to table. Seeding could proceed by following a "seeding" program card with a randomly mixed set (or subset) of playing cards; the sequence of those cards would establish an initial value for the random generation function. After being read by one device, the seeding program card and randomly mixed set of playing cards could be moved to another machine, and the process repeated there. Alternatively, the removable memory means in the device could be programmed with the desired distributions prior to the start of the session.
After the system determines a desired distribution the system operates to distribute the cards. Two embodiments of the current invention are described herein: (a) the four-way system, and (b) the lateral system.
I am also seeing that its the type of cards placed into the shuffler - which look like they have some kind of markings that the shuffler can read - that can which tell the shuffler how to shuffle the cards whether it favors the house or the players in the game etc
Interesting names that pop up as citations - mindplay ;)
Quote: beachbumbabsThe cards all have yellow ink on them that you can't see (they look red and black) but the scanner can. If you see them open a brand new deck, there's usually a test card in the box, where you can see it, otherwise not.
Im about to get crazy here. all speculation.
Mindplay. Still alive and well. ShuffleMaster just made it way better somehow.
Every 8 decks have a small period due to the algorithm being used. The type of randomization and house edge are encoded on the deck, and once the period is over, the decks must be thrown out. The seeds are obviously reused, although im pretty sure GLI recommends against it.
I always thought the algorithm is in the shuffler itself but obviously not, and its an SD card or some kind of ROM most likely. Thats probably even better.
