Wireless Microphone Frequency Selection System
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Solution Overview
Problem
Conventional frequency selection systems for wireless microphones are tedious and time-consuming due to manual frequency selection processes, often requiring multiple attempts to find a frequency with acceptable interference levels for effective transmission and reception of audio signals.
Innovation Solution
A frequency selection system featuring a wireless microphone and receiver with a transceiver device and microprocessors that enable automatic frequency matching through two-way wireless communication, using command codes and frequency codes to automatically select and lock onto a frequency with minimal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual frequency selection is used in conventional systems, then users can select frequencies, but the process becomes tedious and time-consuming requiring multiple attempts
Solution Approach 1:
The system enables automatic frequency selection where the receiver autonomously scans frequencies, detects interference levels, and selects optimal frequencies without manual intervention. The microprocessor automatically coordinates frequency assignment between transmitter and receiver, eliminating the need for users to manually attempt multiple frequencies.
Solution Approach 2:
The patent replaces manual mechanical frequency selection with an automated electronic system. A microprocessor-controlled frequency selection unit automatically scans and selects frequencies based on interference detection, substituting the manual mechanical tuning process with an intelligent electronic automation system.
2Reliability
If multiple frequency attempts are made to find acceptable frequencies, then interference issues can be resolved, but the operation becomes complex and inconvenient
Solution Approach 1:
The system incorporates interference detection feedback mechanisms where the receiver continuously monitors signal quality and interference levels. Based on this feedback, the microprocessor automatically adjusts frequency selections to avoid interfering channels, ensuring reliable communication without requiring complex manual intervention or multiple trial attempts.
Solution Approach 2:
The frequency selection unit autonomously performs frequency scanning, interference detection, and optimal frequency selection without user intervention. The system self-manages the complex process of finding acceptable frequencies, reducing operational complexity while maintaining high reliability through automated interference avoidance.
Data Source
AI summary
A frequency selection system includes a wireless microphone and a receiver. The wireless microphone includes a microphone element for receiving sound and outputting a corresponding audio signal, and a transceiver device electrically coupled to the microphone element for wireless transmission of the audio signal and configuration communication. The transceiver device has a first communication unit operable to receive a frequency code. The transceiver device also includes a wireless transmission unit operable to wirelessly transmit the audio signal received from the microphone element using a wireless transmission frequency that corresponds to the frequency code received by the first communication unit. The receiver includes a second communication unit for wirelessly receiving a command code from the first communication unit and wirelessly sending the frequency code to the first communication unit.