# US 12,118,850 B2 · Gaming chip with a stripe pattern and management system for identification of the gaming chip based on imaging > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,118,850 B2 - Document ID: US12118850B2 - Status: Granted - Kind: B2 - Application number: 17/967,186 - Filed: 2022-10-17 - Published: 2023-02-02 - Granted: 2024-10-15 - Earliest claimed: 2017-03-31 - Assignees: Angel Group Co., Ltd. - Applicants: Angel Group Co., Ltd. - Inventors: Yasushi Shigeta - Web page: https://patentgrep.com/patent/US12118850B2 ## CPC - G07F 17/3241: {Security aspects of a gaming system, e.g. detecting cheating, device integrity, surveillance (computer security G06F21/00)} - A44C 21/00: Coins (coins specially adapted to operate coin-freed mechanisms G07F1/06); Emergency money; Beer or gambling coins or tokens, or the like - G06K 7/1439: {including a method step for retrieval of the optical code} - G06K 19/047: {the record carrier being shaped as a coin or a gambling token} - G06K 19/07758: {arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag} - G06K 19/145: {at least one of the further markings being adapted for galvanic or wireless sensing, e.g. an RFID tag with both a wireless and an optical interface or memory, or a contact type smart card with ISO 7816 contacts and an optical interface or memory} - G07D 7/12: Visible light, infrared or ultraviolet radiation - G07F 17/3202: {Hardware aspects of a gaming system, e.g. components, construction, architecture thereof} - G07F 17/322: {Casino tables, e.g. tables having integrated screens, chip detection means} - G07F 17/3248: {involving non-monetary media of fixed value, e.g. casino chips of fixed value} - 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}) - A44C: PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - G07D: HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING ## Abstract A management system includes a recording device recording an image of a gaming chip and an inspection device determining a type and authenticity of the gaming chip. The gaming chip has a multilayer structure in which both sides of a colored layer are sandwiched between light color layers, surface printing representing a type of the gaming chip is performed on outer sides of the light color layers, and an authenticity recognition mark is printed on the colored layer of an inside of the light color layers by an infrared absorbing material. A visible light camera photographs a visible light image of the surface printing, and an infrared light camera photographs an infrared image of the internal printing. The inspection device determines the type and authenticity of the gaming chip using the visible light image and the infrared image. ## Claims ### Claim 1 A management system for managing gaming chips, in which an authenticity recognition mark made of an infrared absorbing material is printed on an inner side of the outermost layer as internal printing, and an indication representing a type of the gaming chips is printed on the outer side of the outermost layer, the management system comprising: a normal camera configured to record and identify an indication representing the type of the gaming chip printed on an outer surface of the outermost layer; an infrared camera configured to record and discriminate the authenticity recognition mark by irradiating infrared rays from the printed side of the indication representing the type of the gaming chip printed on an outside of the outermost layer; and an inspection device configured to determine the type and authenticity of the gaming chips using the normal camera and the infrared camera. ### Claim 2 (depends on 1) The management system according to claim 1, wherein the authenticity recognition mark is printed by a transparent or translucent infrared absorbing material. ### Claim 3 (depends on 1) The management system according to claim 1, wherein the gaming chip has a recess in a central portion of its surface and the outermost layer is provided in the recess. ### Claim 4 (depends on 1) The management system according to claim 1, wherein: the gaming chip has at least a coloring layer in the middle and consists of a multilayer structure with light-colored layers on both sides of the middle coloring layer to form a stripe pattern in a stacking direction on the sides, and the inspection device is configured to identify the type of the gaming chip by the coloring layer using a normal camera. ### Claim 5 (depends on 4) The management system according to claim 4, further comprising a database configured to store association between the authenticity recognition mark and the type of the gaming chip. ### Claim 6 (depends on 5) The management system according to claim 5, wherein the inspection device is configured to inspect whether or not the authenticity recognition mark and at least the type identified by the coloring layer are associated by the database. ### Claim 7 (depends on 1) The management system according to claim 1, wherein the authenticity recognition mark of the gaming chip is a character or a pattern. ### Claim 8 (depends on 1) The management system according to claim 1, wherein the gaming chips have a built-in RF tag storing RF tag information. ### Claim 9 (depends on 8) The management system according to claim 8, further comprising a database configured to store the RF tag information in association with the authenticity recognition mark. ### Claim 10 (depends on 9) The management system according to claim 9, wherein the inspection device is configured to inspect whether or not the authenticity recognition mark and the RF tag information are associated by the database. ### Claim 11 (depends on 1) The management system according to claim 1, wherein the outermost layer is transparent. ### Claim 12 A gaming chip, wherein: an inner side of an outermost layer is internally printed with an authenticity recognition mark made of an infrared absorbing material, and the authenticity recognition mark is used to determine the authenticity of the gaming chip by infrared irradiation from the side printed with an indication of a type of the gaming chip printed on an outside of the outermost layer, using an infrared camera. ### Claim 13 (depends on 12) The gaming chip according to claim 12, wherein the authenticity recognition mark of the gaming chip can be determined by infrared irradiation and can be determined an association with the indication indicating the type of the gaming chip read using a normal camera. ### Claim 14 (depends on 12) The gaming chip according to claim 12, wherein the authenticity recognition mark of the gaming chip is printed with a transparent or translucent infrared absorbing material. ### Claim 15 (depends on 12) The gaming chip according to claim 12, wherein a central portion of a surface has a recess and the outermost layer is provided in the recess. ### Claim 16 (depends on 12) The gaming chip according claim 12, wherein the gaming chip has a coloring layer at least in the middle and comprising a multilayer structure with light-colored layers on both sides of the middle coloring layer to form a stripe pattern in a stacking direction on the sides. ### Claim 17 (depends on 16) The gaming chip according to claim 16, wherein the authenticity recognition mark is associated by a database with at least a type of gaming chip identified by the coloring layer. ### Claim 18 (depends on 16) The gaming chip according to claim 16, wherein the gaming chip is provided with an ID mark made of UV ink or carbon black ink on the outer surface of the light-colored layer. ### Claim 19 (depends on 18) The gaming chip according to claim 18, wherein the authenticity recognition mark is associated with at least the ID mark in a database. ### Claim 20 (depends on 12) The gaming chip according to claim 12, wherein the authenticity recognition mark is a character or a pattern. ### Claim 21 (depends on 12) The gaming chip according to claim 12, wherein the gaming chip has a built-in RF tag storing RF tag information. ### Claim 22 (depends on 21) The gaming chip according to claim 21, wherein the authenticity recognition mark is associated with at least the RF tag information in a database. ### Claim 23 (depends on 12) The gaming chip according to claim 12, wherein the outermost layer is transparent.