Virtual reality control system

Patent metadata

Field	Value
Publication number	US-2025328199-A1
Application number	US-202519170747-A
Country	US
Kind code	A1
Filing date	Apr 4, 2025
Priority date	Apr 22, 2024
Publication date	Oct 23, 2025
Grant date	—

Abstract

A virtual reality control systems includes a base, a dynamic carrier that is disposed on the base and is configured to move along at least one rotational axis, and a control device that is connected to the dynamic carrier and is configured to determine a virtual rotation angle corresponding to a virtual operation, convert the virtual rotation angle into a carrier rotation angle, and control the rotational movement of the dynamic carrier based on the carrier rotation angle. The angle conversion function maps a virtual angle range to a carrier angle range in a nonlinear manner, such that the virtual rotation angle is within the virtual angle range and the carrier rotation angle is within the carrier angle range.

First claim

What is claimed is:

1 . A virtual reality control system, comprising:
a base; a dynamic carrier that is disposed on the base and is configured to move along at least one rotational axis; and a control device that is connected to the dynamic carrier and is configured to determine a virtual rotation angle corresponding to a virtual operation, convert the virtual rotation angle into a carrier rotation angle, and control the rotational movement of the dynamic carrier based on the carrier rotation angle, wherein the angle conversion function maps a virtual angle range to a carrier angle range in a nonlinear manner, such that the virtual rotation angle is within the virtual angle range and the carrier rotation angle is within the carrier angle range.

2 . The virtual reality control system of claim 1 , wherein the virtual angle range is greater than the carrier range.

3 . The virtual reality control system of claim 1 , further comprises a computing device that is connected to the control device, the computing device being configured to:
determine multiple simulated rotation angles corresponding to multiple simulated operations, each simulated rotation angle being within a simulated angle range, define a normal angle range based on the frequency of occurrence of the simulated rotation angles, determine the carrier angle range and define a commonly used angle range within the carrier angle range, and define the angle conversion function based on the simulated angle range, the normal angle range, the carrier angle range, and the commonly used angle range.

4 . The virtual reality control system of claim 3 , wherein the computing device is further configured to:
obtain a model function, determine a first coefficient of the model function based on the carrier angle range, and determine a second coefficient of the model function based on the virtual angle range, the normal angle range, and the commonly used angle range.

5 . The virtual reality control system of claim 4 , wherein the model function is defined as: y=a*tanh(bx), where y is the carrier control angle, x is the virtual angle, a is the first coefficient, and b is the second coefficient.

6 . The virtual reality control system of claim 3 , wherein the carrier angle range includes a first sub-range and a second sub-range, and the computing device is configured to:
obtain a segmented model function, determine a first coefficient for a first segment of the model function based on the first sub-range of the carrier angle range, determine a second coefficient for the first segment based on the virtual angle range, the normal angle range, and the commonly used angle range, determine a third coefficient for a second segment of the model function based on the second sub-range of the carrier angle range, and determine a fourth coefficient for the second segment based on the virtual angle range, the normal angle range, and the commonly used angle range.

7 . The virtual reality control system of claim 6 , wherein the segmented model function is defined as:

y
=

{

a
⁢
1
*
tanh
⁢

(

b
⁢
1
⁢
x

)

,

x
<
0

a
⁢
2
*
tanh
⁢

(

b
⁢
2
⁢
x

)

,

x
≥
0

,

where y is the carrier control angle, x is the virtual angle, a 1 and b 1 are coefficients corresponding to the first subrange, and a 2 and b 2 are coefficients corresponding to the second subrange.

8 . The virtual reality control system of claim 1 , further comprises a computing device that is configured to:
determine multiple first simulated rotation angles corresponding to a first rotational axis and multiple second simulated rotation angles corresponding to a second rotational axis, wherein the first simulated rotation angles are within a first simulated angle range and the second simulated rotation angles are within a second simulated angle range; define a first normal angle range based on the frequency of occurrence of the first simulated rotation angles and a second normal angle range based on the frequency of occurrence of the second simulated rotation angles; determine a first carrier angle range and a second carrier angle range, and define a first commonly used angle range within the first carrier angle range and a second commonly used angle range within the second carrier angle range; define a first angle conversion function based on the first simulated angle range, the first normal angle range, the first carrier angle range, and the first commonly used angle range; and define a second angle conversion function based on the second simulated angle range, the second normal angle range, the second carrier angle range, and the second commonly used angle range.

9 . A virtual reality control method executed by a control device, the method comprising:
determining a virtual rotation angle corresponding to a virtual operation; converting the virtual rotation angle into a carrier rotation angle using an angle conversion function; and controlling the rotational movement of a dynamic carrier based on the carrier rotation angle, wherein the angle conversion function maps a virtual angle range to a carrier angle range in a nonlinear manner, such that the virtual rotation angle is within the virtual angle range and the carrier rotation angle is within the carrier angle range.

10 . The method of claim 9 , wherein the virtual angle range is greater than the carrier angle range.

11 . The method of claim 9 , further comprising:
determining multiple simulated rotation angles corresponding to multi

Assignees

• Cooler Master Tech Inc

Inventors

• Chen Chun-Ta
• Shiao Yao
• Lee Shang-Che
• Lien Ming-Wan

Classifications

• G06F3/011 Primary

  Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00) · CPC title

• A63F13/28 Primary

  responding to control signals received from the game device for affecting ambient conditions, e.g. for vibrating players' seats, activating scent dispensers or affecting temperature or light · CPC title

• G06F2203/013

  Force feedback applied to a game · CPC title

• A63F13/42

  by mapping the input signals into game commands, e.g. mapping the displacement of a stylus on a touch screen to the steering angle of a virtual vehicle · CPC title

• A63F13/90

  Constructional details or arrangements of video game devices not provided for in groups A63F13/20 or A63F13/25, e.g. housing, wiring, connections or cabinets · CPC title