VR Chair Accessory With Rotatable HMD Connection to Reduce Cable Entanglement
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Solution Overview
Problem
Current head-mountable displays (HMDs) rely on cables for power and data, which can lead to entanglement hazards, limited mobility, and discomfort due to weight and heat, disrupting the immersive experience in virtual reality environments.
Innovation Solution
A chair accessory with integrated ports and a rotatable electrical connection or wireless communication for HMDs, allowing for reduced cable usage and enhanced user mobility, along with features like motorized tilting and rotational motion to simulate immersive experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are used to supply power and data to HMD, then performance levels are maintained, but user mobility is limited and entanglement hazards occur
Solution Approach 1:
The patent extracts the power supply function from the cable connection by integrating a power bank directly into the HMD device. This allows the HMD to be detached from the cable while maintaining power supply capability, thereby resolving the contradiction between maintaining performance (power supply) and ensuring user mobility (freedom from cable constraints).
Solution Approach 2:
The patent introduces a wireless communication module as an intermediary between the HMD and the external environment. This module enables data transmission without physical cable connections, allowing the HMD to maintain data communication performance while eliminating the mobility restrictions and entanglement hazards associated with cables.
2Ease of operation
If battery pack is used to power HMD, then cable-free operation is achieved, but battery life is short and weight increases
Solution Approach 1:
The patent implements a dynamic power management system where the HMD can switch between battery power and wireless charging modes. The wireless charging module can be activated during movement or when power is needed, extending the effective battery life without requiring a larger battery pack, thus maintaining cable-free operation while addressing the limited duration of action.
3Ease of operation
If longer cable is used to increase mobility, then user range is extended, but entanglement risk and weight increase
Solution Approach 1:
The patent removes the cable component entirely from the HMD system by integrating wireless communication and power transmission capabilities. This extraction eliminates the entanglement risk associated with longer cables while maintaining extended user range through wireless connectivity, resolving the contradiction between user range and entanglement risk.
Data Source
AI summary
A chair for use with a head-mountable display device, the chair comprising a seat portion comprising one or more connection means to allow connection to the head-mountable display device, a base portion, and a rotatable connection between the seat portion and the base portion configured so as to allow an electrical connection to pass between the seat portion and base portion, wherein the electrical connection is operable to transmit at least one of power and digital data.