Temporal RF Signal Detection for Real-Time Spectrum Classification

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Solution Overview

Problem

Current spectrum management devices are limited by their specificity to certain technologies, bulkiness, high cost, difficulty in use, and lack of real-time data analysis, making them inefficient for managing diverse wireless communications spectrum needs.

Innovation Solution

An apparatus that learns the RF environment using statistical techniques, forms a knowledge map, and performs real-time spectral sweeps to detect low-power or buried signals, identifying and classifying them based on temporal features without requiring external databases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If narrowly tailored spectral analyzers are used for specific communication standards, then measurement precision for that standard is improved, but device complexity and cost increase when standards change

Engineering Contradiction:
Improvesignal detection precisionVSAvoidsoftware and hardware complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a universal spectral analyzer that can detect and classify multiple communication standards (cellular, Wi-Fi, radar, TV, etc.) using a single device with adaptive algorithms. The system uses machine learning models that can be trained on different signal types without requiring hardware changes or complex software reconfiguration, allowing one device to replace multiple standard-specific analyzers.

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

Solution Approach 2:

The system dynamically adjusts detection parameters and classification algorithms based on the detected signal characteristics. By changing operational parameters adaptively rather than requiring hardware changes, the system maintains measurement precision across different communication standards while avoiding the complexity of redesigning the device for each new standard.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If traditional spectral management devices are used, then comprehensive spectrum analysis capability is achieved, but device size and portability are reduced

Engineering Contradiction:
Improvespectrum management capabilityVSAvoiddevice size
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces traditional bulky hardware-based spectral analysis systems with a software-defined approach using machine learning algorithms. Instead of relying on complex hardware configurations and multiple physical components, the system uses computational models that can be implemented on standard processors, dramatically reducing device size while maintaining comprehensive spectrum management capabilities.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

A single compact device performs multiple functions including spectrum sensing, signal classification, interference detection, and compliance verification through integrated machine learning models, eliminating the need for multiple separate instruments and reducing overall system size.

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

3Measurement precision

If external database connectivity is required for signal detection, then measurement precision is improved, but loss of time increases due to external dependencies

Engineering Contradiction:
Improvesignal identification accuracyVSAvoiddata analysis time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-contained signal detection and classification using embedded machine learning models that operate independently without requiring external database connections. The machine learning algorithms are pre-trained and can continuously learn from new data locally, enabling real-time signal identification without time-consuming external queries or network dependencies.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The machine learning models are pre-trained on comprehensive datasets of various communication signals before deployment. This preliminary training allows the system to immediately begin accurate signal detection and classification without requiring external databases or continuous data downloads, significantly reducing operational time while maintaining high measurement precision.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If real-time spectral sweeping is performed, then productivity is improved, but use of energy increases

Engineering Contradiction:
Improvereal-time detection capabilityVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The system applies local quality analysis by focusing computational resources on specific frequency bands and signal characteristics where anomalies are detected, rather than uniformly processing the entire spectrum. The machine learning models prioritize analysis of regions with potential interference or unwanted signals, reducing overall computational load and energy consumption while maintaining real-time detection productivity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The spectral analyzer performs periodic sweeping through the frequency spectrum rather than continuous analysis, using interval-based sampling that maintains real-time awareness of the electromagnetic environment while reducing peak energy consumption. The machine learning algorithms process data in batches during each sweeping cycle, optimizing the balance between detection responsiveness and power usage.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12483915B2Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
Publication Date: 2025.11.25 DIGITAL GLOBAL SYSTEMS INC
  • US12483915B2 patent drawing
  • US12483915B2 patent drawing
  • US12483915B2 patent drawing

AI summary

Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.