# US 11,308,821 B2 · Method and device for analysis of movement of a piece of sports equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,821 B2 - Document ID: US11308821B2 - Status: Granted - Kind: B2 - Application number: 16/062,786 - Filed: 2016-12-19 - Published: 2020-01-09 - Granted: 2022-04-19 - Earliest claimed: 2015-12-17 - Assignees: Viewlicity GmbH - Applicants: Viewlicity GmbH - Inventors: Christoph Pregizer; Lukas Posniak - Web page: https://patentgrep.com/patent/US11308821B2 ## CPC - G09B 19/0038: {Sports} - A63B 24/0021: {Tracking a path or terminating locations} - A63B 69/36: for golf - A63B 69/3608: {Attachments on the body, e.g. for measuring, aligning, restraining (A63B69/0059, A63B69/3673 take precedence)} - A63B 69/3667: {Golf stance aids, e.g. means for positioning a golfer's feet} - A63B 71/0622: {Visual, audio or audio-visual systems for entertaining, instructing or motivating the user} - A63B 2024/0031: {at the starting point} - A63B 2024/0034: {during flight} - A63B 2071/0666: {worn on the head or face, e.g. combined with goggles or glasses} - A63B 2071/0694: {Visual indication, e.g. Indicia} - A63B 2102/32: Golf - A63B 2220/18: Inclination, slope or curvature - A63B 2220/806: Video cameras - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract The invention relates to a method for the analysis of movement of a piece of sports equipment of a type of ball sport, in particular a racket, preferably a golf club, or a ball, preferably a golf ball, wherein a first virtual trajectory model is reproduced in a display device in a way that said first virtual trajectory model is displayed as a first line on the display device in superimposition with at least one, in particular in reality, visible section of the environment, particularly when a field of view is directed on the at least one section of the environment which is visible in reality. ## Claims ### Claim 1 A system for analyzing the movement of at least one piece of sports equipment for a type of ball sport, comprising: a projector arranged to generate projections on at least one playing field; a data interface or scanning apparatus arranged to detect in a reference system a position of the projector, a defined start position and a target position for a ball of the type of ball sport, and at least one environmental parameter which comprises a topographical parameter that characterizes the topography and which at least partially characterizes an environment within an area between the start position and the target position; a processing unit arranged to utilize the reference system in calculating an ideal trajectory of the at least one piece of sports equipment based on the start position of the ball, the target position of the ball, and the at least one environmental parameter, and to generate a first virtual trajectory model, adapted to the topography based on the topographical parameter, of the at least one piece of sports equipment in at least one section of the environment on the basis of the calculated ideal trajectory of the at least one piece of sports equipment, wherein the processing unit is configured to operate the projector to project the start position of the ball and the first virtual trajectory model onto the playing field as a first line, and wherein the first line connects the start position and the target position and is adapted to a topography that is characterized by the topographical parameter. ### Claim 2 (depends on 1) The system for analyzing movement according to claim 1 further comprising: a user interface arranged to detect a start position of the ball of the type of ball sport in a reference system by means of input by a user. ### Claim 3 (depends on 1) The system according to claim 1, wherein the projector further comprises at least one accelerometer and one gyrosensor in order to measure movement in six degrees of freedom and wherein the processing unit is further arranged to determine, by means of coupling, an actual position and/or an actual orientation of the display device based on a position and/or an orientation of the display device determined by the tracking module. ### Claim 4 (depends on 1) The system of claim 1 further including a tracking module, arranged to detect a start position of a ball of the type of ball sport and a defined target position for the ball in a reference system and to detect a position and/or an orientation of the display device in the reference system. ### Claim 5 (depends on 1) The system according to claim 1, further including a tracking module that is arranged to determine an actual position of the piece of sports equipment and/or wherein the system further comprises a radiolocation device in order to determine the actual position and/or an actual trajectory of the piece of sports equipment, and wherein the display device is further arranged to display the actual position and/or the actual trajectory of the piece of sports equipment. ### Claim 6 (depends on 5) The system according to claim 5, wherein the system is additionally configured to display a deviation between the actual position and/or trajectory of the piece of sports equipment and the ideal position and/or trajectory of the piece of sports equipment. ### Claim 7 (depends on 1) The system of claim 1 wherein the projector projects the first virtual trajectory model onto the playing field in real time. ### Claim 8 (depends on 1) The system of claim 1, wherein the data interface or scanning apparatus is additionally arranged to detect a defined standing position of a player and the projector projects the defined standing position onto the playing field. ### Claim 9 A system for analyzing the movement of at least one piece of sports equipment for a type of ball sport, comprising: a projector arranged to generate projections onto at least one environment; a data interface or scanning apparatus arranged to detect in a reference system a position and/or orientation of the projector, a defined start position and a target position for a ball of the type of ball sport, and at least one environmental parameter that comprises a topographical parameter, which characterizes the topography, and that at least partially characterizes an environment within an area between the start position and the target position; and a processing unit arranged to utilize the reference system in calculating an ideal trajectory of the at least one piece of sports equipment based on the start position of the ball, the target position of the ball, and the at least one environmental parameter in order to calculate a field of view of the projector in the reference system on the basis of the detected position and/or the orientation of the projector, and to generate a first virtual trajectory model, adapted to the topography based on the topographical parameter, of the at least one piece of sports equipment in at least one section of the environment on the basis of the calculated ideal trajectory of the at least one piece of sports equipment, wherein the processing unit is configured to operate the projector to project the start position of the ball and the first virtual trajectory model onto the environment as a first line, and wherein the first line begins at the start position and intersects the target position, the first line being adapted to a topography that is characterized by the topographical parameter.