# US 9,751,002 B2 · Random digit generator featuring differently colored balls > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,002 B2 - Document ID: US9751002B2 - Status: Granted - Kind: B2 - Application number: 14/747,340 - Filed: 2015-06-23 - Published: 2016-12-29 - Granted: 2017-09-05 - Earliest claimed: 2015-06-23 - Applicants: Alan Frank - Inventors: Alan Frank - Web page: https://patentgrep.com/patent/US9751002B2 ## CPC - A63F 7/048: {used for generating random numbers} - A63F 9/24: Games using electronic circuits not otherwise provided for - G06F 7/588: {Random number generators, i.e. based on natural stochastic processes} - G07C 15/001: {with balls or the like} - G07F 17/3213: {Details of moving display elements, e.g. spinning reels, tumbling members} - G07F 17/34: depending on the stopping of moving members {in a mechanical slot machine}, e.g. "fruit" machines - A63F 2009/2454: {with LED} - A63F 2009/2458: {LCD's} - A63F 2009/2463: {on a screen, e.g. using a video projector} - A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - 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 The current invention is an improvement to the random number generator described in U.S. Pat. No. 5,088,737. Random digits are generated by mixing ten differently colored balls in a transparent chamber. The entire surfaces of all the balls are uniformly colored and unmarked. None of the balls contains any electronic identification devices. A color sensor mounted near the settlement pocket of the mixing chamber emits data that is unique for each ball. A miniature computer and novel software correlate the data emitted for each of the ten balls with a different digit. One of the balls is randomly separated from the others and comes to rest near the color sensor without human intervention. The computer and its software record the digit that is correlated with the randomly separated ball and command a mini-projector to display the digit on the ball's surface in an upright position. ## Claims ### Claim 1 A system for randomly generating at least one lottery object indicia, comprising: a transparent chamber; a plurality of lottery objects having a substantially spherical shape, similar size, different colors, and no markings on the surface of the lottery objects, the plurality of lottery objects are positioned inside the transparent chamber, means for mixing the plurality of lottery objects within the transparent chamber, a selection pocket located within the transparent chamber for receiving a selected lottery object that was separated from all other lottery objects in the transparent chamber; a color sensor for sensing color data of the selected lottery object, wherein the color sensor includes an ambient light shield having a circular opening with a diameter smaller than the diameter of the selected lottery object, the color sensor is located proximate the selection pocket, and the selected lottery object resting against the ambient light shield when the selected lottery object is positioned in the selection pocket; a computer for receiving the color data of the selected lottery object transmitted from the color sensor, wherein the computer associates the color data of the selected lottery object with a selected lottery object indicia; and a means for displaying an image of the selected lottery object indicia. ### Claim 2 (depends on 1) The system for randomly generating at least one lottery object indicia of claim 1, wherein the means for displaying is a projector for projecting the image of the selected object indicia on the selected lottery object. ### Claim 3 A system for randomly generating at least one lottery object indicia, comprising: a transparent chamber; a plurality of lottery objects having a substantially spherical shape, similar size, different colors, and no markings on the surface of the lottery objects, the plurality of lottery objects are positioned inside the transparent chamber, means for mixing the plurality of lottery objects within the transparent chamber, a selection pocket located within the transparent chamber for receiving a selected lottery object that was separated from all other lottery objects in the transparent chamber; a color sensor located proximate the selection pocket for sensing color data of the selected lottery object; a computer for receiving the color data of the selected lottery object transmitted from the color sensor, wherein the computer associates the color data of the selected lottery object with a selected lottery object indicia; and a projector for projecting an image of the selected object indicia on the selected lottery object. ### Claim 4 (depends on 3) The system for randomly generating at least one lottery object indicia of claim 3, wherein the color sensor includes an ambient light shield having a circular opening with a diameter smaller than the diameter of the selected lottery object and the color sensor is located proximate the selection pocket and the selected lottery object resting against the ambient light shield when the selected lottery object is positioned in the selection pocket.