UWB Device Orientation for Precise Spatial Audio
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Solution Overview
Problem
Existing wireless communication technologies for immersive experiences in artificial reality systems, such as VR, AR, or MR, face challenges in coordinating multiple devices using the same wireless link technology, leading to interference and limited precision in determining device orientation and spatial audio content.
Innovation Solution
Utilizing ultra-wideband (UWB) antennas to establish connections between devices, determine orientation, and render audio signals based on UWB measurements, enabling precise spatial audio content delivery and reducing interference with Wi-Fi and Bluetooth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Wi-Fi or Bluetooth wireless links are used for data transmission in immersive reality systems, then communication coverage and device compatibility are improved, but coordination between multiple devices becomes complex and interference increases
Solution Approach 1:
The patent introduces UWB technology as an intermediary layer between devices in the immersive reality system. UWB provides precise time synchronization and position information that acts as a mediator to coordinate Wi-Fi and Bluetooth communications, reducing the complexity of direct coordination between these wireless technologies while maintaining their compatibility benefits.
2Speed
If Wi-Fi or Bluetooth wireless links are used for data transmission, then communication range is improved, but measurement precision for device orientation deteriorates
Solution Approach 1:
The patent merges multiple wireless technologies (UWB, Wi-Fi, Bluetooth) into a unified system where each technology performs its strength function. UWB provides precise orientation and position measurements, while Wi-Fi and Bluetooth maintain communication connectivity. This combination allows the system to achieve both long communication range and high measurement precision simultaneously.
3Ease of operation
If multiple devices use the same wireless link technology for communications, then ease of operation is improved, but interference between devices increases
Solution Approach 1:
UWB serves as an intermediary that enables multiple devices to operate on the same Wi-Fi or Bluetooth network without interfering with each other. By providing precise position and orientation data through UWB, the system can spatially separate device communications, allowing multiple devices to use the same wireless technology simultaneously without causing harmful interference.
Data Source
AI summary
In one aspect, the systems and methods described herein may include a first device comprising a first ultra-wideband (UWB) antenna. The first device may establish a connection with a second device having a second UWB antenna. The first device may determine an orientation of the first device relative to the second device, according to one or more UWB measurements between the first UWB antenna of the first device and the second UWB antenna of the second device. The first device may receive audio signals corresponding to the second device, and can render the audio signals into audio output to a user of the first device according to the determined orientation.