Minelab Electronics Pty. Limited (20240329276). Metal Detector simplified abstract

Metal Detector

Organization Name

Minelab Electronics Pty. Limited

Inventor(s)

Philip Shane Wahrlich of Mawson Lakes (AU)

Justin Thomas-albury of Mawson Lakes (AU)

Metal Detector - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240329276 titled 'Metal Detector

The patent application describes a method for reducing false positives of a metal detector in detecting a target by using multiple functions to process the receive signal and classify it into different classes based on the likelihood function.

• Transmits a magnetic field and receives a magnetic field to produce a receive signal.
• Processes the receive signal using at least two different functions to produce a first signal sensitive to the target's characteristics and a second signal representing a likelihood function of the first signal.
• Classifies the receive signal into at least three possible classes based on the second signal.
• Produces an indicator output signal, including an audio signal, based on the classification.

Potential Applications: - Security screening at airports and other high-security areas. - Mining operations to detect valuable minerals while reducing false alarms. - Archaeological excavations to identify buried artifacts accurately.

Problems Solved: - Reducing false positives in metal detection. - Improving the accuracy of target identification. - Minimizing the impact of environmental factors on detection results.

Benefits: - Enhanced security measures. - Increased efficiency in resource exploration. - Improved archaeological discoveries.

Commercial Applications: Title: Advanced Metal Detection System for Enhanced Security Screening This technology can be utilized in airports, mining operations, and archaeological sites to improve target detection accuracy and reduce false alarms, leading to increased safety and efficiency in various industries.

Questions about the technology: 1. How does this method improve the accuracy of metal detection compared to traditional approaches? 2. What are the potential challenges in implementing this technology in different environments?

Original Abstract Submitted

a method for reducing false positives of a metal detector in detecting a target, including transmitting a transmit magnetic field; receiving a receive magnetic field to produce a receive signal; processing the receive signal using at least two different functions to produce a first signal and a second signal; the at least two different functions are configured such that the first signal is sensitive to at least one characteristic of the target, and such that the second signal is a representation of a likelihood function of the first signal, the representation of the likelihood function taking into consideration an effect of an environment upon the first signal; and classifying the receive signal into a classification of one of at least three possible classes based on at least the second signal; and producing an indicator output signal based on the classification. the indicator output signal is different for different classifications and the indicator output signal includes an audio signal.