The Shoe Knows Whose Card That Was Tying a Rank Reader to Overhead Cameras So the System Can Call the Winner

This application claims a casino table monitoring system whose single job is to work out, automatically, which hand won. A card shooter apparatus reads the rank of every card as it leaves the shoe, a camera system watches where each card lands, and a control unit combines the two feeds to decide who received each card, what each player and the dealer are holding, and who wins under the game rules. It was filed by Angel Group Co., Ltd. of Kyoto and names the company’s chairman, Yasushi Shigeta, as sole inventor. The title page records it as a divisional of Australian application 2024202084. A sibling filed on the same day, AU 2026202218, carries the identical title and the same description but claims something quite different, and the contrast between the two is the most useful thing a reader can take from either.

The Problem

The specification describes the ordinary mechanics of a live table. Baccarat and Black Jack are dealt from a shoe holding six to nine or ten standard 52 card decks shuffled together before play begins. Cards leave that shoe one at a time and are placed in front of seated bettors by a dealer. Nothing in that sequence is recorded by the shoe itself in any way that survives the hand.

The stated problem is that cards can be lost or swapped between bettors, and that payoffs must reach the right person after the hand ends. The document is blunt about what existing surveillance does and does not achieve. The only prior art it cites is US 6,582,301, which the specification characterises as a camera system that “only monitors the table game and records whole games for later analysis if it is believed that some inappropriate act has occurred”. Worth noting for accuracy: the cited document is actually titled as a card dispensing shoe with a scanner and a mechanical barrier that also enables remote betting, so the specification’s one line summary of its own prior art is a loose fit.

Either way the complaint is the same, and it is a complaint about timing rather than about coverage. Recorded video is evidence after the fact. The specification wants a system that knows what is happening while it is happening, so a casino can halt a hand mid play rather than reconstruct it from tape afterwards.

The harder part of that is attribution. A shoe with a reader knows the rank of the card it just released. It does not know where the card went. Without that, a running tally of ranks is just a list, not a set of hands, and no rule engine can act on it.

What This Invention Does

Claim 1 defines a monitoring system for a game with four elements: a game table on which bettors place bets on betting areas, a card shooter apparatus comprising a card reading unit that reads the number (rank) of a card, a control unit that determines a winning hand according to game rules from the sequence of ranks read, and a camera system to capture the position of cards.

The claim then specifies what the control unit must do with those two data streams together. Using the output of the camera system and the card shooter apparatus, it determines, first, who gets each card read by the shooter; second, the contents of each hand of the bettors and the dealer according to the information read by the card reading unit; and third, the winner or winners of the game according to the game rules based on those hands.

That ordering is the substance of the claim. The shoe supplies identity, the cameras supply destination, and the control unit performs the join. Paragraph [0013] of the description puts it in plain words: the shooter “knows directions of each card (who gets each card read by the card shooter apparatus through the monitor video camera system) and then the card shooter apparatus will figure out by its programs the hands held by the bettors and the dealer”.

There is a mismatch between the claim and the abstract that a reader should know about. The abstract printed on this application describes a control system that receives image information of wagers, determines a start of betting when the first bet is placed on any betting area, determines at least one stack of chips and its position, and determines an end of betting corresponding to when the first card is dealt from an electronic dealing shoe. None of the betting window logic appears in claim 1. That abstract is inherited verbatim from the parent, AU 2024202084, and describes the parent’s claims rather than these. The article follows claim 1.

The dependent claims are short and they fill out the picture. Claim 2 requires the control unit to read the ranks of cards as dealt on the table and verify that they match what the shoe read, which is a cross check of the optical channel against the mechanical one. Claim 3 requires the control unit to determine when each game starts and ends. Claim 4, depending on claim 3, adds detection of bets moved out of their original betting area during a game, which is the point where this claim set brushes against the subject matter its sibling claims outright. Claim 5 adds a head count of bettors, claim 6 adds detection of any bettor receiving more than two cards, claim 7 adds a camera system to identify bets on each betting area, and claim 8 adds determination of the position, kind and number of chips from their image.

The specification is thin on numbers. It gives deck counts and a worked figure showing three seated bettors, and paragraph [0015] describes calculating a wager total by analysing the colour and the height of a chip stack, with side view cameras optionally placed around the table for that purpose. Paragraph [0021] states that all of the image work is done with CCD cameras “through known technology of vision analysis”. There is no accuracy figure, no frame rate, no latency budget, and no description of the recognition algorithm anywhere in the document.

Key Features

• Rank read at the point of dispense. The card shooter apparatus carries a reading unit that captures the number of each card as it is released, so the system has the card’s identity before it reaches the table surface.
• Camera resolved card attribution. The camera system captures the position of cards and the control unit uses that output to decide who gets each card the shooter read. This is the element that turns a rank sequence into assigned hands.
• Hand reconstruction for bettors and the dealer. The control unit builds the contents of every hand at the table, including the dealer’s, from the read ranks combined with the attribution step.
• Rule driven winner determination. With the hands known, the control unit applies the game rules to name the winner or winners. The description installs those rules in the control unit of the shooter itself rather than in a remote server.
• Optical cross check against the shoe. Claim 2 has the control unit identify the ranks of cards lying on the table and verify they are identical to the ranks the reading unit recorded, so two independent channels have to agree.
• Chip characterisation from images. Claim 8 has the control unit determine the position, the kind and the number of chips from the image of the chips, with the description explaining that colour and stack height are the measured quantities.

Who Is Behind It

Angel Group Co., Ltd. is a Kyoto manufacturer whose company page describes it as a global manufacturer with a high market share in casino playing cards and casino currencies, with research and development in Japan and Singapore and manufacturing in Japan, Singapore, Mexico and France. The named inventor, Yasushi Shigeta, is listed on that page as the company’s chairman and representative.

The company’s published group history is directly relevant to an Australian filing. It records the first casino supply licence obtained in New South Wales in 1999, the establishment of Angel Australasia Pty Ltd in 2015, an A.I. Systems Research Institute founded in 2016, and the 2019 acquisition of Gaming Partners International. The corporate name matters too: the complete specification pages in the sibling application are still headed “Angel Playing Cards Co. Ltd”, while the bibliographic page of both applications prints the current name, Angel Group Co., Ltd.

On priority the specification itself says nothing at all. There is no cross reference paragraph and no convention claim anywhere in the body, and the only relationship the document asserts is the title page entry recording a divisional of AU 2024202084. The chain below is established from the published family record rather than from this specification. AU 2024202084 is a divisional of AU 2022202544, which descends through AU 2020201800 and AU 2018250457 from AU 2015207326, the Australian national phase entry of international application PCT/JP2015/000171, published as WO 2015/107902 on 16 January 2015. That international application in turn claims priority from AU 2014200314, filed in Australia on 17 January 2014 and since abandoned. The priority country is therefore Australia, not Japan, which is unusual for a Kyoto applicant. The drawing sheets bound into this application still carry the “WO 2015/107902 PCT/JP2015/000171” running head from that international publication, so the family link is visible on the face of the document even though the text never mentions it.

Counting the divisional steps, this filing is the seventh Australian generation of a specification first lodged in January 2014.

Why It Matters

The interesting question is why the same applicant filed two identically titled divisionals on the same day, 23 March 2026, from two different parents. The answer is in the claims. This application claims the card side of the system: rank reading, attribution, hand reconstruction and winner determination, with wager movement appearing only as a dependent feature in claim 4. AU 2026202218 claims the wager side: it says nothing about a card shooter apparatus in its independent claim and instead requires the control unit to define a wager closure period, snapshot the bets at its start and end, compare them, and raise an alert if any bet moved. Two divisionals, one description, and a deliberate split of the disclosure into a card integrity claim and a bet integrity claim.

Angel has the wider family pointed the same way. A related divisional published in the same journal issue, on fraud detection at the gaming table, covers chip watching rather than card watching, and the company’s own product pages group its RFID reading systems and its optical recognition systems as separate product lines. Filing along that seam keeps each line covered by claims that do not depend on the other.

For a casino operator the commercial pull is straightforward. A table that computes its own result can reconcile hand outcomes against payouts without a human doing it, and the two channel cross check in claim 2 means a discrepancy between what the shoe read and what the cameras see on the felt is detected in the same hand it occurs. Australian table game operators have spent the past several years under materially tighter scrutiny, with bodies such as the NSW Independent Casino Commission now expecting verifiable table data rather than assurances, and a system that produces a machine readable record of every hand is a direct answer to that expectation.

The honest limitation is that this specification is a 2014 disclosure being claimed in 2026. It describes vision analysis as known technology and declines to say how any of it works, which is a reasonable drafting choice when the inventive step is claimed to be the combination rather than the recognition. Whether a claim to combining a reader output with a camera output survives examination twelve years on is a different question, and one the file history will answer rather than this document.

Related Concepts

• Dealing shoe – the card holding device that the claimed card shooter apparatus extends with a rank reading unit.
• Computer vision – the discipline behind the camera system that supplies card positions and chip images to the control unit.
• Blackjack – the game used as Embodiment 1 in the specification, where hand reconstruction has to handle bettors drawing more than two cards.
• Croupier – the dealer whose own hand the system must reconstruct alongside those of the bettors.
• Charge-coupled device – the sensor technology the specification names for the monitor video cameras.

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AU 2026202217 was published in the Australian Official Journal of Patents on 9 April 2026 and is open for public inspection. Patent applications represent inventions that are sought to be protected and do not necessarily reflect commercially available products.