Dual Transceiver Bluetooth Wearable Signal Switching
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Solution Overview
Problem
Bluetooth signal transmission and reception are challenging due to obstacles like the human body and lack of radio reflecting surfaces, leading to unstable connections, especially in wearable devices like earpieces and headphones.
Innovation Solution
A system with two wearable devices, each equipped with a transceiver and antenna, communicates through a separate channel to evaluate and switch to the best signal, using methods like near field magnetic induction (NFMI) or ultra-wideband (UWB) for improved connectivity within Bluetooth standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single Bluetooth transceiver is used in wearable devices, then device complexity is reduced, but connection reliability deteriorates due to body shielding and lack of radio reflecting surfaces
Solution Approach 1:
The system divides the communication function into two separate transceivers (first and second transceivers) located at different positions on the wearable device. This segmentation allows each transceiver to attempt connection independently, and the system can switch between them based on which provides better signal quality, thereby improving connection reliability while distributing the complexity across multiple components
Solution Approach 2:
The system dynamically changes the operational parameter of which transceiver is active based on evaluated connection quality. By monitoring signal strength and switching between transceivers, the system adapts to changing environmental conditions (body position, obstacles) to maintain reliable connection without requiring both transceivers to operate simultaneously, thus managing device complexity
2Reliability
If multiple transceivers are used to improve connection reliability, then connection stability improves, but power consumption increases
Solution Approach 1:
The system dynamically switches between the first and second transceivers based on real-time evaluation of connection quality. Instead of operating both transceivers continuously, the system activates only the transceiver providing the better signal, thereby maintaining connection stability while significantly reducing power consumption compared to running multiple transceivers simultaneously
Solution Approach 2:
The system performs self-evaluation of connection quality using the separate communications linkage between the two transceivers. Each transceiver can assess the other's connection status and automatically determine which should be active, eliminating the need for external control and enabling energy-efficient autonomous operation
3Measurement precision
If a separate communications linkage is used between transceivers, then connection evaluation capability is improved, but device complexity increases
Solution Approach 1:
The separate communications linkage serves multiple functions: it enables connection evaluation between transceivers, allows switching control, and provides a backup communication path. This multi-functionality justifies the added complexity by delivering precise connection evaluation capability without requiring separate dedicated systems for each function
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
Maintains stable connections even in adverse environments, reduces power consumption, and ensures reliable audio streaming by automatically switching to the optimal signal path.
Implementation Method 1
a first device (14) having a transceiver (22) and an antenna (15) operatively connected to the transceiver (22) and a second device (10) having a transceiver (24) and an antenna (17) operatively connected to the transceiver (24), the first device (14) in operative communication with the second device (10) through a communications linkage (25) separate from the transceiver (22) of the first device (14) and the transceiver (24) of the second device (10)
Implementation Method 2
using methods like near field magnetic induction (NFMI) or ultra-wideband (UWB) for improved connectivity within Bluetooth standards
Implementation Method 3
using methods like near field magnetic induction (NFMI) or ultra-wideband (UWB) for improved connectivity within Bluetooth standards
Data Source
AI summary
A first device having a transceiver and an antenna operatively connected to the transceiver and a second device having a transceiver and an antenna operatively connected to the transceiver, the first device in operative communication with the first device through a communications linkage separate from the transceiver of the first device and the transceiver of the second device. The first device is adapted to wirelessly communicate with a remote device through the transceiver of the first device. The second device is adapted to wirelessly communicate with the remote device through the transceiver of the second device. The system is configured to evaluate the wireless connection between the first device and the remote device and to evaluate the wireless communication between the second device and the remote device and determine whether the first device or the second device has a better connection.