ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,890, issued on March 18, was assigned to NEC Corp. (Tokyo).
"Biometric authentication device, biometric authentication system, biometric authentication method and recording medium" was invented by Takayuki Arakawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention reduces the risk of user biometric information being leaked to a third party. A biometric authentication device (820) receives an echo signal (response signal) from a client device. The echo signal is formed as a result of an inspection signal being applied to an authentication subject by a client device, and the inspection signal being transmitted into the body o...