# US 2025/0148859 A1 · Symbol accumulation sequence with symbol display pattern matching feature > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0148859 A1 - Document ID: US20250148859A1 - Status: Published application - Kind: A1 - Application number: 18/504,666 - Filed: 2023-11-08 - Published: 2025-05-08 - Earliest claimed: 2023-11-08 - Assignees: Igt - Applicants: Igt - Inventors: Nicholas Jon Scheffel - Web page: https://patentgrep.com/patent/US20250148859A1 ## CPC - G07F 17/3211: {Display means} - G07F 17/3213: {Details of moving display elements, e.g. spinning reels, tumbling members} - G07F 17/3267: {Game outcomes which determine the course of the subsequent game, e.g. double or quits, free games, higher payouts, different new games} - G07F 17/34: depending on the stopping of moving members {in a mechanical slot machine}, e.g. "fruit" machines - 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}) ## Abstract Gaming systems and methods providing symbol displays and a symbol accumulation sequence that includes a symbol display pattern matching feature that is employed to enlarge the symbol displays in specific manners for the symbol accumulation sequence. ## Claims ### Claim 1 A gaming system comprising: a processor; and a memory device which stores a plurality of instructions, which when executed by the processor, cause the processor to: cause a display, by a display device, of symbol displays, each of the symbol displays associated with a first quantity of symbol display positions; cause a display, by the display device, of a triggering event comprising a plurality of award symbols on the symbol displays at a plurality of the symbol display positions; cause a display, by the display device, for each of the symbol displays, of an enlarged symbol display based on that symbol display and a symbol display pattern matching feature, an indication of active symbol display positions associated with the enlarged symbol display, and an indication of non-active symbol display positions associated with the enlarged symbol display; and cause a display, by the display device, of a symbol accumulation sequence comprising a plurality of activations of the enlarged symbol displays. ### Claim 2 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause the display, by the display device, for one of the symbol displays and the enlarged symbol display based on that symbol display, of the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based one of the award symbols displayed at one of the symbol display positions associated with that symbol display. ### Claim 3 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause the display, by the display device, for each of a plurality of the symbol displays and each of the plurality of the enlarged symbol displays respectively based on that plurality of symbol displays, of the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based one of the award symbols displayed at one of the symbol display positions associated with that symbol display. ### Claim 4 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause the display, by the display device, for each of the symbol displays and each of the enlarged symbol displays respectively based on the symbol displays, of the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based one of the award symbols displayed at one of the symbol display positions associated with that symbol display. ### Claim 5 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause the display, by the display device, for one of the symbol displays and the enlarged symbol display based on that symbol display, of the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based on no award symbols displayed at any of the symbol display positions associated with that symbol display. ### Claim 6 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause the display, by the display device, for each of the symbol displays and each of the enlarged symbol displays respectively based on the symbol displays, of the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based on the symbol display pattern matching feature and the award symbols displayed on the symbol displays at the symbol display positions associated with the symbol displays. ### Claim 7 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter a change to the indications of active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display. ### Claim 8 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter a change to the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based on the symbol display position at which that award symbol is displayed. ### Claim 9 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter an indication of an increase of the active symbol display positions associated with that enlarged symbol display and an indication of a decrease of the non-active symbol display positions associated with that enlarged symbol display. ### Claim 10 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter an indication of an increase of the active symbol display positions associated with that enlarged symbol display and an indication of no non-active symbol display positions associated with that enlarged symbol display. ### Claim 11 (depends on 1) The gaming system of claim 1, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of two of the award symbols displayed on the enlarged symbol display at two spaced apart active symbol display positions associated with the enlarged symbol display, and thereafter an indication of an increase of the active symbol display positions associated with that enlarged symbol display and an indication of no non-active symbol display positions associated with that enlarged symbol display. ### Claim 12 A gaming system comprising: a processor; and a memory device which stores a plurality of instructions, which when executed by the processor, cause the processor to: cause a display, by a display device, of symbol displays, each of the symbol displays associated with a first quantity of symbol display positions; cause a display, by the display device, of a triggering event comprising a plurality of award symbols on the symbol displays at a plurality of the symbol display positions; cause a display, by the display device, for each of the symbol displays, of an enlarged symbol display based on that symbol display, an indication of active symbol display positions associated with the enlarged symbol display, and an indication of non-active symbol display positions associated with the enlarged symbol display, wherein for two of the enlarged symbol displays, respective quantities of the indicated active symbol display positions associated with those enlarged symbol displays are different and respective quantities of the indications of non-active symbol display positions associated with those two enlarged symbol displays are different; and cause a display, by the display device, of a symbol accumulation sequence comprising a plurality of activations of the enlarged symbol displays. ### Claim 13 (depends on 12) The gaming system of claim 12, wherein for each of the enlarged symbol displays, respective quantities of the indicated active symbol display positions associated with those enlarged symbol displays are different and respective quantities of the indications of non-active symbol display positions associated with those enlarged symbol displays are different. ### Claim 14 (depends on 12) The gaming system of claim 12, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter a change to the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display. ### Claim 15 (depends on 12) The gaming system of claim 12, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter a change to the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display based on the symbol display position at which that award symbol is displayed. ### Claim 16 (depends on 12) The gaming system of claim 12, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter an indication of an increase of the active symbol display positions associated with that enlarged symbol display and an indication of a decrease of the non-active symbol display positions associated with that enlarged symbol display. ### Claim 17 A gaming system comprising: a processor; and a memory device which stores a plurality of instructions, which when executed by the processor, cause the processor to: cause a display, by a display device, of symbol displays, each of the symbol displays associated with a first quantity of symbol display positions; cause a display, by the display device, of a triggering event comprising a plurality of award symbols on the symbol displays at a plurality of the symbol display positions; cause a display, by the display device, for each of the symbol displays, of an enlarged symbol display based on that symbol display, an indication of active symbol display positions associated with the enlarged symbol display, and an indication of non-active symbol display positions associated with the enlarged symbol display, and wherein for two of the enlarged symbol displays, quantities of the indicated active symbol display positions associated with those enlarged symbol displays are the same and quantities of the indications of non-active symbol display positions associated with those two enlarged symbol displays are the same; and cause a display, by the display device, of a symbol accumulation sequence comprising a plurality of activations of the enlarged symbol displays. ### Claim 18 (depends on 17) The gaming system of claim 17, wherein for each of the enlarged symbol displays, respective quantities of the indicated active symbol display positions associated with those enlarged symbol displays are the same and respective quantities of the indications of non-active symbol display positions associated with those enlarged symbol displays are the same. ### Claim 19 (depends on 17) The gaming system of claim 17, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter a change to the indications of the active symbol display positions associated with that enlarged symbol display and the indications of the non-active symbol display positions associated with that enlarged symbol display. ### Claim 20 (depends on 17) The gaming system of claim 17, wherein when executed by the processor, the plurality of instructions cause the processor to cause a display, by the display device, for one of the plurality of activations of the enlarged symbol displays, of one of the award symbols displayed on the enlarged symbol display at one of the active symbol display positions associated with the enlarged symbol display, and thereafter an indication of an increase of the active symbol display positions associated with that enlarged symbol display and an indication of a decrease of the non-active symbol display positions associated with that enlarged symbol display.