Wireless Signal Distortion for Device Timing Synchronization
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Solution Overview
Problem
In virtual reality environments, dynamic objects are often inaccurately reconstructed due to clock misalignment between observing devices, leading to inconsistent location registrations across devices.
Innovation Solution
A method is developed to determine and synchronize the timing offset between devices using techniques such as distortion patterns in wireless signals, observations of keypoint features, and reprojection of observations, ensuring consistent object location registration across multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple devices observe dynamic objects independently without synchronization, then each device can operate autonomously and record observations, but the observed locations become inconsistent due to clock misalignment and timing differences
Solution Approach 1:
The patent introduces a server as an intermediary that receives observations from multiple devices, determines timing offsets between devices, and generates synchronized output. The server acts as a central coordinator that reconciles timing differences without requiring direct synchronization between devices, thereby improving location consistency while avoiding complex peer-to-peer synchronization mechanisms.
Solution Approach 2:
The system implements a feedback mechanism where the server receives observations from devices, analyzes timing differences based on distortion patterns, determines timing offsets, and uses this information to synchronize the reconstructed object locations. This closed-loop feedback ensures that timing misalignment is continuously corrected, maintaining reliable location registration across multiple devices.
2Ease of operation
If devices use independent clocks to operate autonomously, then device operation is simplified and independent, but clock drifting causes gradual desynchronization and timing offset between devices
Solution Approach 1:
The server serves as an intermediary that collects timing information from independently operating devices, determines timing offsets based on received observations, and compensates for clock drifting. This approach preserves the simplicity of independent device operation while correcting timing accuracy issues through centralized processing.
Solution Approach 2:
The patent replaces mechanical clock synchronization mechanisms with a software-based timing offset determination system. Instead of requiring devices to mechanically synchronize their clocks, the system uses signal processing of received observations and distortion pattern analysis to computationally determine and compensate for timing differences, thereby maintaining ease of operation while improving measurement precision.
3Measurement precision
If devices transmit detailed observations frequently to maintain synchronization, then timing accuracy improves, but data transmission volume and processing load increase
Solution Approach 1:
The system extracts only the essential timing information from device observations, specifically focusing on distortion patterns that indicate timing relationships. Rather than transmitting and processing all observation data, the server extracts timing offset information from key features of the received signals, reducing data transmission volume while maintaining timing precision.
Solution Approach 2:
The patent applies partial action by determining timing offsets based on selected key features of observations rather than processing complete observation datasets. By focusing on specific distortion patterns and timing-critical information, the system achieves sufficient timing accuracy without the excessive data processing load that would result from analyzing all observation details.
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 solution effectively synchronizes devices, enabling accurate reconstruction of dynamic objects in virtual environments by correcting clock misalignment, thereby improving the consistency and accuracy of object locations across multiple observers.
Implementation Method 1
a first wireless signal received by a first device includes a first distortion pattern associated with a movement of an object in an environment
Implementation Method 2
a first wireless signal received by a first device includes a first distortion pattern associated with a movement of an object
Implementation Method 3
distortion patterns in wireless signals received by the devices... caused by an object moving in the environment
Data Source
AI summary
A method includes receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment, receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment, determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment, determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern, and determining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device.