Two-Section Headset Architecture Using Optical Fiber Links
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Solution Overview
Problem
Existing head-mounted VR devices are heavy and uncomfortable for long-term use due to the weight of internal components, and signal transmission issues cause instability and delays.
Innovation Solution
A two-section head-mounted system using optical fiber cables for signal transmission between an arithmetic processing part and a head-mounted part, incorporating conversion devices for parallel-to-serial and photoelectric conversions to stabilize and enhance signal strength over long distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the battery and mainboard are moved outside the head mounted part, then the weight on the user's head is reduced, but the signal transmission stability deteriorates due to increased transmission length
Solution Approach 1:
The patent replaces traditional electrical signal transmission with optical fiber transmission. The head mounted part converts electrical signals to optical signals for transmission to the external processor, and converts optical signals back to electrical signals upon receipt. This substitution enables long-distance signal transmission without the attenuation and interference problems that plague electrical transmission, thus maintaining signal stability while allowing the battery and mainboard to be positioned outside the head mounted part.
2Device complexity
If traditional electrical cables are used for signal transmission, then the device structure is simple, but signal strength attenuates as transmission length increases causing display delays
Solution Approach 1:
The patent substitutes electrical cable transmission with optical fiber transmission. Optical fibers transmit signals as light pulses, enabling much higher transmission speeds and longer distances without signal degradation. The conversion devices at each end handle the electrical-to-optical and optical-to-electrical transitions, maintaining compatibility with existing electrical components while achieving superior transmission performance.
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
The system achieves lightweight comfort and stable operation by utilizing optical fiber's advantages of long-distance stability, high bandwidth, and low dispersion, reducing cable diameter and minimizing electromagnetic interference.
Implementation Method 1
The first conversion device is coupled to the processor and configured to perform parallel-to-serial conversion and photoelectric conversion on signals transmitted between the processor and the optical fiber cables
Implementation Method 2
use optical fiber as the signal transmission medium, taking advantage of its long-distance transmission stability and wide bandwidth to avoid signal strength from attenuating as the transmission length increases
Data Source
AI summary
A two-section head mounted system is provided. The two-section head mounted system has an arithmetic processing part, a head mounted part, and a cable part. The arithmetic processing part and the head mounted part are connected to each other through a plurality of optical fiber cables in the cable part. The two-section head mounted system includes a processor, a first conversion device, an image device, and a second conversion device. The processor is installed in the arithmetic processing part. The first conversion device is configured to perform parallel-to-serial conversion and photoelectric conversion on signals transmitted between the processor and the optical fiber cables. The image device is installed in the head mounted part. The second conversion device is configured to perform parallel-to-serial conversion and photoelectric conversion on signals transmitted between the image device and the optical fiber cables.