ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,421, issued on Aug. 19, was assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (Torrance, Calif.).

"Speaker identification apparatus, speaker identification method, and recording medium" was invented by Katsunori Daimo (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker identification apparatus that identifies a speaker of utterance data indicating a voice of an utterance subjected to identification includes: an emotion estimator that estimates, from an acoustic feature value calculated from the utterance data, an emotion contained in the voice of the utterance indicated by the utterance data, using a trained deep ...