ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,533, issued on Sept. 23.
"System and method for acquiring electrical impedance tomography data" was invented by Udayan Kanade (Pune, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "An AC current of multiple frequencies is setup in a body to be sensed, and amplitudes and phases of AC voltages at many electrodes attached to the body are detected simultaneously. At electrode measurement circuits, each of multiple modulating signals is mixed separately with the electrode signal using non-linear circuit components such as transistors or diodes. The output of this mixed signal is stored as a charge, in a capacitor or a semiconductor device (e.g. a C...