Handheld Device and Vibration Cancellation Method

• US 20170020704A1
• Filed: 07/23/2015
• Published: 01/26/2017
• Est. Priority Date: 07/23/2015
• Status: Active Grant

• Current Assignee: Inalways Corporation
• Original Assignee: Jemptek Technology Inc.
• Inventors: Wu, Yung-Hsi, Hung, Po-Chih
• Granted Patent: US 10,849,776 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47G 21/08 Serving devices for one-handed persons
• CPC Class Codes: A47G 2200/046 of holding or grasping
• CPC Class Codes: A47G 2200/205 Vibrating parts
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/1101 Detecting tremor
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: A61F 4/00 Methods or devices enabling patients or disabled persons to operate an apparatus or a device not forming part of the body operating or control means for prostheses A61F2/48, A61F2/68
• CPC Class Codes: A61H 1/00 Apparatus for passive exercising A61H5/00 takes precedence; Vibrating apparatus driving means for vibrating A61H23/00; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
• CPC Class Codes: A61H 2201/501 connected to external computer devices or networks
• CPC Class Codes: A61H 2201/5097 wireless
• CPC Class Codes: F16F 7/1005 characterised by active control of the mass
• CPC Class Codes: G01P 1/003 used for damping

Abstract

A handheld device includes a base comprising a handgrip for receiving a vibration movement, a gripping element linked to the base for releasably connecting the handheld device to an object, at least one inertia sensor for detecting an acceleration of the vibration movement to generate an acceleration signal, a processing unit for determining to generate a cancellation decision according to the acceleration signal, and at least one actuator for controlling movement of the gripping element according to the cancellation decision, such that the acceleration is counteracted.

Claims

1. A handheld device, comprising:

a base comprising a handgrip, for receiving a vibration movement;

a gripping element linked to the base for releasably connecting the handheld device to an object;

at least one inertia sensor, for detecting an acceleration of the vibration movement to generate an acceleration signal;

a processing unit, for determining to generate a cancellation decision according to the acceleration signal; and

at least one actuator, for controlling movement of the gripping element according to the cancellation decision, such that the acceleration is counteracted.

2. The handheld device of claim 1, further comprising a band pass filter for rejecting frequency components of the acceleration signal AC outside a frequency range.

3. The handheld device of claim 2, wherein the frequency range is 2-24 Hz.

4. The handheld device of claim 1, wherein the processing unit is further utilized for removing a gravity component from the acceleration signal.

5. The handheld device of claim 1, wherein the processing unit is further utilized for generating the cancellation decision if the acceleration signal is less than a first threshold.

6. The handheld device of claim 5, wherein the at least one actuator is further utilized for lifting up the gripping element if the acceleration signal is less than the first threshold.

7. The handheld device of claim 1, wherein the processing unit is further utilized for generating the cancellation decision if the acceleration signal is greater than a second threshold.

8. The handheld device of claim 7, wherein the at least one actuator is further utilized for lowering down the gripping element if the acceleration signal is greater than the second threshold.

9. The handheld device of claim 1, further comprising at least one position sensor for detecting a position of the gripping element to generate a position signal.

10. The handheld device of claim 9, wherein the processing unit is further utilized for determining whether the position is in a neutral position according to the position signal to generate a position calibration signal.

11. The handheld device of claim 10, wherein the position calibration signal is utilized for instructing to the actuator to reset the gripping element back to the neutral position.

12. The handheld device of claim 1, further comprising:

a power converter, for converting a mechanical power of the vibration movement into an electrical power;

a battery, electrically coupled to the power converter, for storing the electrical power; and

a speaker, coupled to the processing unit, for broadcasting an acoustic notice of a condition of the handheld device.

13. The handheld device of claim 1, further comprising:

an interface module, electrically coupled to the processing unit, for uploading data of the vibration movement and the acceleration signal to at least one external device.

14. The handheld device of claim 1, wherein the processing unit is further utilized for determining whether the handgrip is held according to the acceleration signal and shutting down the handheld device if the handgrip is not held for a time period.

15. A vibration cancellation method for controlling a gripping element, comprising:

detecting an acceleration of a vibration movement;

rejecting frequency components of the acceleration outside a frequency range;

removing the gravity component from the acceleration;

lifting up the gripping element if the acceleration is less than a first threshold; and

lowering down the gripping element if the acceleration is greater than a second threshold.

16. The vibration cancellation method of claim 15, wherein the frequency range is 2-24 Hz.

17. The vibration cancellation method of claim 15, further comprising detecting a position of the gripping element.

18. The vibration cancellation method of claim 17, further comprising determining whether the position is in a neutral position.

19. The vibration cancellation method of claim 18, further comprising if the position is not in the neutral position, resetting the gripping element back to the neutral position.

20. The vibration cancellation method of claim 15, further comprising converting a mechanical power of the vibration movement into an electrical power.

21. The vibration cancellation method of claim 15, further comprising uploading data of the vibration movement and the acceleration to an external server.