US Patent Issued to Mitsubishi Electric Research Laboratories on March 11 for "System and method of extracting motor fault signature using sparsity-driven joint blind deconvolution and demodulation" (Massachusetts, Illinois Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,942, issued on March 11, was assigned to Mitsubishi Electric Research Laboratories Inc. (Cambridge, Mass.).

"System and method of extracting motor fault signature using sparsity-driven joint blind deconvolution and demodulation" was invented by Dehong Liu (Lexington, Mass.) and Varun Kelkar (Champaign, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fault detection system is provided to extract fault signature from the time-domain stator current signal of a motor under varying load operations by solving a joint blind deconvolution-demodulation problem, where the stator current of a motor under varying operating conditions is modeled as a stat...