Multi-Channel SDR Audio Receiver for Flexible Spectrum Allocation
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Solution Overview
Problem
Existing audio transceivers are not bandwidth flexible, require hardware exchanges for channel scaling, and suffer from multipath fading and interference, leading to degraded signal-to-noise ratios and undesirable audio artifacts.
Innovation Solution
A multi-channel audio receiver (MCR) with a spectrum manager and software-defined radio capabilities that can dynamically reconfigure to accommodate varying numbers of audio channels, utilize frequency and antenna diversity, and adaptively lock onto signals to reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing audio transceivers are used with fixed hardware configuration, then device complexity is reduced, but adaptability and bandwidth flexibility are limited
Solution Approach 1:
The patent implements dynamic channel allocation where the spectrum manager can reallocate audio channels between different users and applications in real-time based on spectrum availability and demand. The system transitions from static hardware configuration to dynamic software-defined channel management, allowing the same hardware to adapt to varying bandwidth requirements without physical reconfiguration.
Solution Approach 2:
The transceiver is designed with universal hardware capabilities that can support multiple channel configurations and bandwidth allocations through software control. The spectrum manager enables the same physical transceiver to function across different spectral allocations and channel arrangements, making the device multi-functional without requiring hardware exchanges.
2Productivity
If hardware exchanges are performed for channel scaling, then channel capacity is adjusted, but loss of time and system downtime increase
Solution Approach 1:
The system enables dynamic channel scaling through software reconfiguration rather than physical hardware exchanges. The spectrum manager can allocate and deallocate channels programmatically, allowing channel capacity to be adjusted in real-time without interrupting system operation or requiring physical component changes.
Solution Approach 2:
The patent replaces the mechanical process of hardware exchange with an electronic/software-based channel allocation mechanism. Instead of physically swapping components to scale channels, the system uses digital signal processing and software-controlled spectrum management to achieve instantaneous channel scaling without mechanical intervention.
3Reliability
If traditional single-channel transceivers are used, then device complexity is minimized, but signal quality deteriorates due to multipath fading and interference
Solution Approach 1:
The patent segments the audio signal across multiple frequency channels and spatial paths. By dividing the audio transmission into multiple parallel channels that can be independently managed and combined, the system achieves diversity gain that mitigates multipath fading and interference, improving signal reliability through segmented transmission paths.
Solution Approach 2:
The spectrum manager merges multiple received signals from different frequency channels and spatial paths into a single reconstructed audio output. This combining process integrates diverse signal paths to overcome individual channel impairments, achieving improved signal quality through constructive combination of multiple transmission paths.
4Adaptability or versatility
If spectrum scanning is performed to optimize channel allocation, then adaptability to spectrum conditions is improved, but loss of time for audio transmission increases
Solution Approach 1:
The system performs preliminary spectrum scanning and analysis to identify available frequency channels and predict optimal allocation patterns before audio transmission begins. By pre-characterizing the spectrum environment and establishing allocation strategies in advance, the system reduces real-time decision-making delays while maintaining adaptability to spectrum conditions.
Solution Approach 2:
The spectrum manager implements continuous feedback monitoring of spectrum usage and transmission quality, dynamically adjusting channel allocations based on real-time conditions. This feedback mechanism allows the system to adapt to changing spectrum environments without requiring complete re-scanning, maintaining low latency by making incremental adjustments based on ongoing observations rather than periodic full scans.
Data Source
AI summary
The present disclosure describes systems, apparatuses, methods, and computer-readable media for multi-channel software-defined radio (SDR) audio transceivers, multi-user audio systems using the same, and methods of using the same. SDR audio transceivers can comprise an antenna and/or radio transmitter. SDR audio transceivers can be configured for multi-channel audio transmission. The multi-channel audio transmission can include wideband channels or channels allocated across a wideband of spectrum. The multi-channel audio transmission can include narrowband channels or channels allocated to a relatively narrower band of spectrum.