Multi-Frequency Wireless Audio Transmission System
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Solution Overview
Problem
Current digital wireless audio systems suffer from high latency, which is unacceptable for live music performances due to the need for retransmission of digital audio data, and are susceptible to radio frequency interference, degrading audio quality.
Innovation Solution
A system that transmits digital audio signals over multiple radio frequencies using redundant and interleaved data streams, allowing for low latency and robust error correction, reducing the impact of interference and eliminating the need for retransmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If retransmission of digital audio data is implemented to handle data loss, then reliability is improved, but latency increases significantly
Solution Approach 1:
The patent segments the digital audio data into multiple independent data streams that are transmitted simultaneously at different radio frequencies. This allows the system to receive correct data from multiple frequencies even if one frequency experiences data loss, eliminating the need for retransmission and maintaining low latency while improving reliability.
Solution Approach 2:
The patent introduces a frequency dimension by transmitting the same audio data across multiple radio frequencies simultaneously. This dimensional approach allows the receiver to select from multiple frequency sources, improving reliability without the latency penalty of sequential retransmission.
2Ease of operation
If analog wireless transmission is used to avoid cables, then ease of operation is improved, but audio quality degrades due to limited bandwidth and dynamic range
Solution Approach 1:
The patent creates multiple copies of the digital audio data streams at different radio frequencies and transmits them simultaneously. This copying approach allows the system to maintain digital audio quality (high measurement precision) while achieving wireless operation (ease of operation), as the receiver can select the clearest frequency copy without needing physical cables.
3Device complexity
If single frequency digital transmission is used, then device complexity is reduced, but reliability decreases due to susceptibility to radio frequency interference
Solution Approach 1:
The patent merges multiple digital audio data streams transmitted at different radio frequencies into a single reliable audio output at the receiver. This combining approach improves reliability by providing redundancy against frequency interference while keeping the overall system complexity manageable through standardized multi-frequency transmission protocols.
Data Source
AI summary
Disclosed is a system and method for the real-time wireless transmission of digital audio signals. A transmitter including a processor may be used to: generate a first digital data stream and a second digital data stream from a digital audio signal and transmit the first digital data stream at a first radio frequency and the second digital data stream at a second radio frequency. A receiver including a processor may be utilized to: receive the first and second digital data streams at the first and second radio frequencies, respectively, and generate the digital audio signal from the first and second digital data streams.