US Patent Issued to NEC on March 4 for "Device, method, and program for determining parameter indicating shape of ear canal based on layers perpendicular to calculated center line of ear canal" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,437, issued on March 4, was assigned to NEC Corp. (Tokyo).

"Device, method, and program for determining parameter indicating shape of ear canal based on layers perpendicular to calculated center line of ear canal" was invented by Takayuki Arakawa (Tokyo) and Yoshitaka Ito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "To easily evaluate the performance of an earphone-type device used for otoacoustic authentication at low cost.A generation unit (31) generates earhole shape data indicating the three-dimensional shape of an individual's ear canal, on the basis of data on the internal structure of an individual's earhole, a center line calculatio...