Wearable HMD Input Using Ring Motion and Gesture Sensors
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Solution Overview
Problem
Existing HMD systems lack operability due to limited input methods, restricting the user's freedom of operation, especially when both hands are required for input operations.
Innovation Solution
An HMD system connected to external operation devices, such as ring-type controllers, equipped with sensors for detecting movement, which transmit operation information via short-range wireless communication to enhance input capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ring-type device with built-in sensor is used for operation input, then the HMD allows hands-free operation, but the operations that can be input are limited
Solution Approach 1:
The ring-type operation device is designed to perform multiple functions: it can detect angular velocity, acceleration, touch inputs, and gesture movements. By integrating these diverse sensing capabilities into a single wearable device, the system achieves multi-functional operation input that resolves the contradiction between hands-free operation and operation variety
Solution Approach 2:
The invention adds spatial dimensionality to operation input by detecting three-dimensional gesture movements and angular velocity in multiple axes. This transforms the limited one-dimensional operation into multi-dimensional input capabilities, allowing users to perform diverse operations through spatial movements while maintaining hands-free operation
2Ease of operation
If gesture input is used for operation, then operation can be performed without hands being occupied, but a wide movement range and specific hand or finger movement are required
Solution Approach 1:
The ring-type device serves as an intermediary between the user's natural gestures and the HMD system. It captures complex hand and finger movements, processes them through built-in sensors, and translates them into simplified operation signals, reducing the complexity burden from the user side while enabling hands-free operation
Solution Approach 2:
The invention replaces complex mechanical gesture recognition requirements with electronic sensor-based detection. Instead of requiring users to perform precise mechanical movements within specific ranges, the system uses angular velocity and acceleration sensors to detect movement patterns, simplifying the operational requirements while maintaining hands-free capability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves operability by allowing various input operations on the HMD system, enhancing user freedom and reducing operational burdens.
Implementation Method 1
a sensor for detecting movement
Implementation Method 2
Operation information from the plurality of external operation devices is received through the short-range wireless communication unit
Data Source
AI summary
There are provided an HMD system capable of improving operability by realizing various input operations on a head mounted display (HMD), an HMD used therefor, and an operation method therefor. Therefore, in the HMD system, an HMD allowing an operation input from an external operation device is connected to a plurality of external operation devices. The external operation device is a device worn on the body of a user who uses the HMD, includes a sensor for detecting movement, and transmits operation information by moving the external operation device. The HMD includes a short-range wireless communication unit and an operation control unit. Operation information from the plurality of external operation devices is received through the short-range wireless communication unit. The operation control unit executes a predetermined operation based on the operation information received from the plurality of external operation devices.