Wireless Audio Frequency Allocation for Interference-Aware Reuse

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Solution Overview

Problem

The limited availability of frequency ranges for wireless audio communications, such as wireless microphones and in-ear monitors, leads to inefficient use and increased interference, as existing methods fail to effectively coordinate and allocate frequencies based on location, time, and equipment usage.

Innovation Solution

A method and system for allocating frequencies in wireless audio communications that involves a frequency information server receiving requests with location, time, and equipment details, comparing them to stored database information, and calculating and allocating transmission parameters to transmitter-receiver units, improving frequency allocation efficiency, flexibility, and reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If frequency ranges are reused multiple times (spatial or temporal division), then the utilization efficiency of available frequencies is improved, but interference from other wireless applications increases

Engineering Contradiction:
Improvefrequency utilization efficiencyVSAvoidinterference from other wireless applications
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary frequency coordination by storing frequency allocation information in databases before wireless audio communications occur. The frequency information server queries these databases in advance to identify suitable frequencies, preventing interference before it happens rather than reacting to it afterward.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A frequency information server acts as an intermediary between wireless audio devices and frequency allocation databases. This server coordinates frequency requests, queries databases for available frequencies, and allocates frequencies to devices, thereby managing the complex task of frequency reuse while minimizing interference through centralized coordination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If frequency allocation is manually coordinated, then interference protection is improved, but the complexity and time required for frequency management increases

Engineering Contradiction:
Improveinterference protectionVSAvoidfrequency management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The frequency information server automatically queries databases, calculates suitable frequencies, and allocates them to wireless audio devices without requiring manual intervention. The system serves itself by storing allocation information in databases and automatically retrieving this information when frequency requests are made, thereby maintaining reliable interference protection while reducing management complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements feedback mechanisms where the frequency information server continuously queries databases for frequency allocation information, receives responses about available frequencies, and adjusts its allocations accordingly. This automated feedback loop ensures reliable interference protection while eliminating the need for complex manual coordination.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If frequency ranges are allocated without centralized coordination, then the ease of operation is improved, but the loss of frequency resources increases

Engineering Contradiction:
Improvefrequency allocation simplicityVSAvoidfrequency resource waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The frequency information server provides universal coordination services for multiple wireless audio devices and different types of frequency requests. By creating a single multi-functional system that handles all frequency allocations through centralized database queries, the system maintains ease of operation (users simply request frequencies) while preventing frequency resource waste through coordinated allocation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8155593B2Method for allocating a frequency for a wireless audio communication
Publication Date: 2012.04.10 SENNHEISER ELECTRONICS GMBH & CO KG
  • US8155593B2 patent drawing
  • US8155593B2 patent drawing

AI summary

A method is provided for allocating a frequency for wireless audio communications. A request is received for a frequency for wireless audio communications. The request contains the location, the time period, the quantity of required wireless communications paths and/or the available equipment for the wireless audio communications. This request is compared with information about frequency use which is stored in databases. Possible frequency ranges are outputted, and the possible frequency ranges are allocated to transmitting and/or receiving units of the requested audio communications.