ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,335, issued on March 3, was assigned to OTSUKA PHARMACEUTICAL Co. LTD. (Tokyo).

"Low power receiver for in vivo channel sensing and ingestible sensor detection with wandering frequency" was invented by Robert Azevedo (Albany, Calif.), Neraj P. Bobra (San Jose, Calif.), Aditya Dua (San Jose, Calif.), Ronny X. Li (San Francisco) and William A. Weeks (Santa Cruz, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system, a wearable device, and a method are provided which can increase the accuracy of physiological metrics while detecting if the patient ingested digital medicine and/or improve performance of the wearable device. The wearable device ...