Codan. has filed a patent for a method using a metal detector to detect targets. The method involves transmitting a repeating sequence of magnetic fields generated by electrical currents, controlling the transition time between current changes, and utilizing a negative feedback loop for measurement. GlobalData’s report on Codan gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Codan, Virtual banking assistant was a key innovation area identified from patents. Codan's grant share as of January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Method for target detection using metal detector

Source: United States Patent and Trademark Office (USPTO). Credit: Codan Ltd

A newly filed patent (Publication Number: US20240019598A1) outlines a method for detecting a target using a metal detector. The method involves transmitting a repeating sequence of a magnetic field generated by an electrical current flowing through a transmit inductive winding. This sequence includes a period of rapid current change followed by a period of constant current, with the transition time controlled by the value of the electrical current. Negative feedback loops are utilized to measure and control the current flow, ensuring precise detection.

Furthermore, the patent claims detail the use of multiple feedback loops to control the timing and duration of the current flow, optimizing the detection process. The method also includes variations in the duration of the constant current periods to enhance target detection. Additionally, the patent covers the configuration of metal detectors to perform the described method and the inclusion of instructions on non-transitory computer-readable mediums for executing the detection process. Overall, the patent introduces a comprehensive approach to target detection using metal detectors, emphasizing precise control of current flow and feedback mechanisms to enhance detection accuracy and efficiency.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.