The following are patents related to DSP methods.

Download Patent # Title Description
PDF 44K US7579839 Metal Detector Minelab, narrowband demodulation
PDF 322K US9239400 Method for Separating Target Signals from Unwanted Signals in a Metal Detector Minelab
PDF 1451K US10078148 Metal Detector Minelab
PDF 939K US10838103 Effective Target Detection Depth Information for Metal Detectors Minelab
PDF 268K US11067715 Signal Processing Technique for a Metal Detector Minelab
PDF 172K US11333785 Metal Detector Minelab
PDF 90K US11914095 Asynchronous Method for Sampling Signals in Metal Detectors Nokta, asynchronous narrowband demodulation