Head-Mounted Imaging Signal Modulation for Reduced Wearable Weight
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing head mounted displays (HMDs) integrate components like mainboards, batteries, and screens on a single hardware structure, causing excessive weight on the user's head, leading to discomfort and use experience issues.
Innovation Solution
The system separates components into different hardware structures with independent circuit boards and modulation circuits, allowing dynamic switching of transmission signal modulation modes based on quality evaluation to maintain good transmission quality and reduce weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If components are integrated on a single hardware structure, then device functionality is complete, but weight on user's head becomes excessive
Solution Approach 1:
The patent divides the HMD system into separate hardware structures: a first hardware structure containing heavy components (mainboard, battery) and a second hardware structure containing lightweight components (display, sensors). This segmentation allows weight reduction on the user's head while maintaining complete system functionality through detachable connections.
Solution Approach 2:
The patent extracts heavy components (mainboard, battery, processor) from the head-mounted structure and places them in a separate wearable device. This extraction removes the weight burden from the user's head while the extracted components remain functionally connected through the detachable transmission interface.
2Weight of moving object
If components are separated into different hardware structures, then head weight is reduced, but transmission quality may deteriorate
Solution Approach 1:
The patent implements dynamic modulation mode switching based on transmission quality evaluation. The processor evaluates transmission quality in real-time and dynamically adjusts the modulation mode (e.g., between USB 3.0 and USB 2.0 modes) to maintain reliable data transmission despite the separated hardware structures and variable cable conditions.
Solution Approach 2:
The patent incorporates a feedback mechanism where the processor continuously evaluates transmission quality of signals transmitted through the detachable interface and cable, then adjusts modulation parameters accordingly. This closed-loop feedback ensures transmission reliability is maintained despite physical separation of components.
3Adaptability or versatility
If modulation mode is fixed, then device complexity is low, but adaptability to different cable lengths and styles is poor
Solution Approach 1:
The patent changes modulation parameters (data rate, signal frequency) dynamically based on transmission quality evaluation. The processor adjusts these parameters in response to cable characteristics and length, enabling adaptation to different cable styles and lengths without requiring multiple fixed modulation circuits.
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
This design reduces headborne weight, extends use time, prevents shoulder and neck pain, and adapts to different cable lengths or styles, enhancing user experience.
Implementation Method 1
switch a modulation mode of a transmission signal performed by the first modulation circuit
Data Source
AI summary
An arithmetic processing device, an imaging device, and a head mounted system are provided. The arithmetic processing device includes a first circuit board, a processor, and a first modulation circuit. The first circuit board has a first transmission interface. The processor is mounted on the first circuit board and configured to evaluate transmission quality of a transmission signal transmitted through the first transmission interface. The first modulation circuit is mounted on the first circuit board and coupled between the processor and the first transmission interface. The processor transmits a first control signal to the first modulation circuit according to the evaluated transmission quality of the transmission signal, so as to switch a modulation mode of the transmission signal performed by the first modulation circuit.