Wireless Head-Mounted Device Millimeter Wave Reception
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Solution Overview
Problem
Head-mounted devices connected via cables pose safety hazards and restrict movement due to tethering, while wireless technologies may exceed RF exposure limits, compromising audio and visual quality.
Innovation Solution
A wireless head-mounted device utilizing high-throughput millimeter wave bands for data reception and low-powered Bluetooth for data transmission, with sensors collecting movement data and transmitting via low-powered hardware to manage RF exposure and enhance user mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable connection is used between the head-mounted device and computing device, then data transmission reliability is improved, but user mobility is restricted and safety hazards increase
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. The head-mounted device uses wireless transceivers to communicate with the computing device, eliminating the physical cable that restricted movement and created safety hazards while maintaining data transmission capability.
Solution Approach 2:
The patent introduces wireless signals as an intermediary medium to transfer data between the computing device and head-mounted device. Instead of direct physical connection, electromagnetic waves serve as the mediator, enabling data transmission without mechanical tethering.
2Ease of operation
If wireless technology is used to eliminate cables, then user mobility is improved, but RF exposure levels may exceed safety limits
Solution Approach 1:
The patent employs multiple transceivers operating at different power levels and frequencies. By distributing the communication function across multiple devices with varying parameters (power output, frequency bands), the system achieves wireless mobility while keeping individual RF exposure levels within safety limits through parameter diversification.
Solution Approach 2:
The patent divides the wireless communication function into multiple separate transceivers rather than using a single high-power transmitter. The head-mounted device contains both high-throughput receiving hardware and low-powered transmitting hardware, segmenting the communication roles to manage RF exposure.
3Speed
If high-powered transmitters are used for wireless data transmission, then data transmission speed is improved, but RF exposure limits are exceeded
Solution Approach 1:
The patent segments the data transmission function into receiving and transmitting operations with different power requirements. The head-mounted device uses high-throughput receiving hardware for fast data intake and low-powered transmitting hardware for sensor data feedback, achieving efficient communication while managing RF exposure through functional segmentation.
Solution Approach 2:
The patent applies different quality characteristics to different communication functions: high-throughput capability for receiving (where speed is critical) and low-powered transmission for sending sensor data (where exposure management is critical). This local differentiation of communication quality resolves the contradiction between speed and safety.
Data Source
AI summary
Example systems relate to wireless head-mounted devices. A wireless head-mounted device may include high-throughput performance miming at millimeter wave band receiving hardware to receive a transmission from corresponding high-powered transmitting hardware included in a computing device. The transmission may include audio, visual, or video data. The wireless head-mounted device may further include a plurality of sensors to collect sensor data. The wireless head-mounted device may further include low-powered transmitting hardware to transmit at least the sensor data collected by the sensors to corresponding low-powered receiving software included in the computing device.