Wireless Microphone Transmission Unit Multiplexing Audio Channels
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Solution Overview
Problem
Existing wireless microphone systems require multiple transmission units for multiple audio sources, leading to increased complexity and the need for multiple transmission frequencies, which can be cumbersome and difficult to manage, especially in large events where many audio sources need to be transmitted simultaneously.
Innovation Solution
A portable transmission unit that combines multiple audio channels into a single serial data stream, allowing for the wireless transmission of multiple audio sources over a single transmission frequency, using a multiplexer to convert parallel audio channels, an encoder for digital transmission, and a control module to prioritize and protect the audio signals, enabling flexible and efficient transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple transmission units are used for multiple audio sources, then each audio source can be transmitted independently, but the system complexity and number of transmission frequencies increase
Solution Approach 1:
The patent combines multiple audio channels into a single multiplexed data stream that is transmitted over one transmission frequency. The transmitter unit integrates multiple audio inputs (microphone, instrument, playback) and merges them into a unified digital stream using a multiplexer, eliminating the need for multiple separate transmission units and frequencies while maintaining reliable transmission of all audio sources
2Adaptability or versatility
If multiple transmission frequencies are used for multiple audio sources, then each transmission can be independent, but the management and coordination become cumbersome
Solution Approach 1:
The transmitter unit is designed as a universal device that can handle multiple types of audio sources (microphone, instrument pickup, playback device) through a single interface. The system accepts various input types and processes them uniformly through the multiplexer and encoder, providing versatile audio source compatibility while simplifying system management to a single unit configuration
3Productivity
If multiple transmission units are deployed, then all audio sources can be transmitted simultaneously, but the number of required transmission frequencies increases
Solution Approach 1:
The patent segments multiple audio channels into a time-division multiplexed data stream where each audio source is assigned a specific time slot or channel identifier. The multiplexer divides the composite audio signal into discrete digital channels that are transmitted sequentially over a single frequency, allowing high transmission capacity while using only one frequency resource
Data Source
Figure 1
AI summary
Wireless transmission systems are frequently used to transmit audio signals (speech, singing, musical instruments) in event technology. The invention relates to a transmission unit 2 for at least one mobile microphone module wherein the transmission unit 2 is designed for the wireless transmission of audio information 12 from the transmission unit 2 to a base station 4 in a data stream, having at least one audio channel A-X which is designed to provide at least one portion of the audio information 12 and having a multiplexer 11, wherein the multiplexer 11 is designed to convert the audio information from at least two parallel audio channels A-X into a serial data stream as the audio information 12 to be transmitted.