ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,408, issued on June 16, was assigned to QUALCOMM Inc. (San Diego).
"Estimating intrinsic resistance of a coin cell battery" was invented by Michael Aaron Zacharko (Landsdale, Australia), Derrick Chu Lin (Hillsborough, Calif.) and Yau Chu (Milpitas, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques and apparatus for determining intrinsic resistance and/or battery life of a coin cell battery based on the recovery time of the battery voltage after a significant current draw event. Once the intrinsic resistance and/or battery life is known, a device powered by the coin cell battery can take action to lengthen the battery's useful lifetime...