# US 12,217,235 B2 · Sensor-based transaction authorization via user device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,235 B2 - Document ID: US12217235B2 - Status: Granted - Kind: B2 - Application number: 18/082,276 - Filed: 2022-12-15 - Published: 2023-04-20 - Granted: 2025-02-04 - Earliest claimed: 2013-08-07 - Assignees: Block, Inc. - Applicants: Block, Inc. - Inventors: Daniel Jeffrey Post; Thomas Templeton - Web page: https://patentgrep.com/patent/US12217235B2 ## CPC - G06Q 20/20: Point-of-sale [POS] network systems - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 1/1694: {the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer} - G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)} - G06Q 20/204: {comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit} - G06Q 20/322: {Aspects of commerce using mobile devices [M-devices]} - G06Q 20/40145: {Biometric identity checks} - G06T 11/23: using straight lines or curves - G06F 2200/1637: Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract A method that includes receiving, from one or more motion sensors in a device, data describing a signature arc in three-dimensional space, the signature arc having been generated by gesturing using the device; identifying, from the data describing the gestured signature arc, a plurality of points that correspond to the gestured signature arc in three-dimensional space; generating a curve along the identified plurality of points corresponding to the gestured signature arc; generating a two-dimensional representation of the gestured signature arc; and displaying, on a display screen, the generated two-dimensional representation of the gestured signature arc. ## Claims ### Claim 1 A method of movement-based input, the method comprising: identifying, based on sensor data from at least one sensor, a plurality of points along a movement are in a three-dimensional space; generating a curve in the three-dimensional space, wherein the curve runs along the plurality of points; projecting the curve onto a plane from a perspective to generate a two-dimensional representation of the curve, wherein the plane is oriented based on a direction in which the curve progresses; and transmitting information corresponding to the two-dimensional representation of the curve to a payment service system to cause the payment service system to progress a transaction based on the information. ### Claim 2 (depends on 1) The method of claim 1, wherein the at least one sensor includes a camera, and wherein the sensor data includes image data captured using the camera. ### Claim 3 (depends on 1) The method of claim 1, wherein the at least one sensor includes a motion sensor, and wherein the sensor data includes motion data captured using the motion sensor. ### Claim 4 (depends on 1) The method of claim 1, wherein the at least one sensor includes an infrared (IR) sensor, and wherein the sensor data includes IR data captured using the IR sensor. ### Claim 5 (depends on 1) The method of claim 1, further comprising: tracking a pattern of features within the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 6 (depends on 1) The method of claim 1, further comprising: tracking a gesture using the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 7 (depends on 1) The method of claim 1, further comprising: tracking a finger using the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 8 (depends on 1) The method of claim 1, further comprising: tracking a hand-held device using the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 9 (depends on 1) The method of claim 1, further comprising: identifying a signature within the two-dimensional representation of the curve, wherein the information corresponding to the two-dimensional representation of the curve includes the signature. ### Claim 10 (depends on 1) The method of claim 1, further comprising: identifying at least one character within the two-dimensional representation of the curve, wherein the information corresponding to the two-dimensional representation of the curve includes the at least one character. ### Claim 11 (depends on 1) The method of claim 1, further comprising: facilitating transfer of funds between a first account and a second account to cause the payment service system to progress the transaction. ### Claim 12 A system of movement-based input, the system comprising: at least one memory; and at least one processor, wherein the at least one processor is configured to: identify, based on sensor data from at least one sensor, a plurality of points along a movement arc in a three-dimensional space; generate a curve in the three-dimensional space, wherein the curve runs along the plurality of points; project the curve onto a plane from a perspective to generate a two-dimensional representation of the curve, wherein the plane is oriented based on a direction in which the curve progresses; and transmit information corresponding to the two-dimensional representation of the curve to a payment service system to cause the payment service system to progress a transaction based on the information. ### Claim 13 (depends on 12) The system of claim 12, wherein the at least one sensor includes a camera, and wherein the sensor data includes image data captured using the camera. ### Claim 14 (depends on 12) The system of claim 12, wherein the at least one sensor includes a motion sensor, and wherein the sensor data includes motion data captured using the motion sensor. ### Claim 15 (depends on 12) The system of claim 12, wherein the at least one sensor includes an infrared (IR) sensor, and wherein the sensor data includes IR data captured using the IR sensor. ### Claim 16 (depends on 12) The system of claim 12, wherein the at least one processor is configured to: track a pattern of features within the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 17 (depends on 12) The system of claim 12, wherein the at least one processor is configured to: track a gesture using the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 18 (depends on 12) The system of claim 12, wherein the at least one processor is configured to: track a finger using the sensor data to identify the plurality of points along the movement arc in the three-dimensional space. ### Claim 19 (depends on 12) The system of claim 12, wherein the at least one processor is configured to: identify at least one character within the two-dimensional representation of the curve, wherein the information corresponding to the two-dimensional representation of the curve includes the at least one character. ### Claim 20 A non-transitory computer readable storage medium having embodied thereon a program, wherein the program is executable by a processor to perform a method of movement-based input, the method comprising: identifying, based on sensor data from at least one sensor, a plurality of points along a movement arc in a three-dimensional space; generating a curve in the three-dimensional space, wherein the curve runs along the plurality of points; projecting the curve onto a plane from a perspective to generate a two-dimensional representation of the curve, wherein the plane is oriented based on a direction in which the curve progresses; and transmitting information corresponding to the two-dimensional representation of the curve to a payment service system to cause the payment service system to progress a transaction based on the information.