Repetition phase detection

Patent metadata

Field	Value
Publication number	US-12564763-B2
Application number	US-202418648921-A
Country	US
Kind code	B2
Filing date	Apr 29, 2024
Priority date	Apr 27, 2021
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

Controlling an exercise machine includes receiving a stream of measurements of extension of a component of an exercise machine. It further includes detecting a first phase of a repeated motion. It further includes detecting a transition to a second phase of the repeated motion. A time constraint is applied to the detection of the transition to the second phase of the repeated motion. It further includes controlling a resistance associated with the second phase of the repeated motion.

First claim

What is claimed is:

1 . A system, comprising:
an exercise machine including a motor and a sensor, wherein the motor is configured to provide resistance to a cable, wherein the sensor is configured to measure a position of the cable and provide a true cable length signal; and a processor configured to:
receive a stream of measurements of extension of a component of the exercise machine to determine a repeated motion, comprising to:
determine an extrema based on the position of the cable, wherein the extrema relate to a min or a max, wherein the determining of the extrema comprises to:
determine an exponential weighted average of a length of the cable based on values of the true cable length signal; and
determine, at a given time, when the exponential weighted average of the length of the cable becomes within a threshold distance of the true cable length signal;

detect a candidate repetition for an exercise based on a first pattern of extrema of a first exercise or a second pattern of extrema of a second exercise, wherein the first exercise is different from the second exercise, wherein the first pattern of extrema and the second pattern of extrema both include a plurality of extrema; and
determine the repeated motion based on the candidate repetition;

detect a first phase of the repeated motion, wherein the first phase comprises a concentric phase or an eccentric phase;
detect a transition to a second phase of the repeated motion, wherein a time constraint is applied to the detection of the transition to the second phase of the repeated motion; and
control the resistance associated with the second phase of the repeated motion by sending a signal to the motor; and
a memory coupled to the processor and configured to provide the processor with instructions.

2 . The system of claim 1 , wherein the repeated motion is associated with the exercise that begins at a top position.

3 . The system of claim 1 , wherein the first phase comprises the concentric phase, wherein the second phase comprises a rest phase, and wherein the transition is detected at least in part by detecting a valid maximum.

4 . The system of claim 1 , wherein the first phase comprises the eccentric phase, the second phase comprises an isometric hold phase, and wherein the transition is detected at least in part by detecting a valid minimum.

5 . The system of claim 1 , wherein the repeated motion is associated with the exercise that begins at a bottom position.

6 . The system of claim 5 , wherein the first phase comprises the concentric phase, wherein the second phase comprises an isometric hold phase, and wherein the transition is detected at least in part by detecting a valid maximum.

7 . The system of claim 5 , wherein the first phase comprises the eccentric phase, the second phase comprises a rest phase, and wherein the transition is detected at least in part by detecting a valid minimum.

8 . A method, comprising:
receiving a stream of measurements of extension of a component of an exercise machine to determine a repeated motion, wherein the exercise machine including a motor and a sensor, wherein the motor is configured to provide resistance to a cable, wherein the sensor is configured to measure a position of the cable and provide a true cable length signal, and wherein the receiving of the stream of measurements comprises:
determining an extrema based on the position of the cable, wherein the extrema relate to a min or a max, wherein the determining of the extrema comprises:
determining an exponential weighted average of a length of the cable based on values of the true cable length signal; and
determining, at a given time, when the exponential weighted average of the length of the cable becomes within a threshold distance of the true cable length signal;

detecting a candidate repetition for an exercise based on a first pattern of extrema of a first exercise or a second pattern of extrema of a second exercise, wherein the first exercise is different from the second exercise, wherein the first pattern of extrema and the second pattern of extrema both include a plurality of extrema; and
determining the repeated motion based on the candidate repetition;
detecting a first phase of the repeated motion, wherein the first phase comprises a concentric phase or an eccentric phase; detecting a transition to a second phase of the repeated motion, wherein a time constraint is applied to the detection of the transition to the second phase of the repeated motion; and controlling the resistance associated with the second phase of the repeated motion by sending a signal to the motor.

9 . The method of claim 8 , wherein the repeated motion is associated with the exercise that begins at a top position.

10 . The method of claim 8 , wherein the first phase comprises the concentric phase, wherein the second phase comprises a rest phase, and wherein the transition is detected at least in part by detecting a valid maximum.

11 . The method of claim 8 , wherein the first phase comprises the eccentric phase, the second phase comprises an isometric hold state, and wherein the transition is detected at least in part by detecting a valid minimum.

12 . The method of claim 8 , wherein the repeated motion is associated with the exercise that begins at a bottom position.

13 . The method of claim 12 , wherein the first phase comprises the concentric phase, wherein the second phase comprises an isometric hold phase, and wherein the transition is detected at least in part by detecting a valid maximum.

14 . The method of claim 12 , wherein the first phase comprises the eccentric phase, the second phase comprises a rest phase, and wherein the transition is detected at least in part by detecting a valid minimum.

Assignees

• Tonal Systems Inc

Inventors

• Belson Brandt
• Ponomarev Egor

Classifications

• A63B24/0087 Primary

  Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load · CPC title

• A63B2024/0093

  the load of the exercise apparatus being controlled by performance parameters, e.g. distance or speed · CPC title

• A63B2220/803

  Motion sensors · CPC title

• A63B2023/0411

  Squatting exercises · CPC title

• A63B23/1281

  primarily by articulating the elbow joint · CPC title