US Patent Issued to NTT on May 5 for "Sound signal downmix method, sound signal coding method, sound signal downmix apparatus, sound signal coding apparatus, program" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,620, issued on May 5, was assigned to NTT Inc. (Tokyo).

"Sound signal downmix method, sound signal coding method, sound signal downmix apparatus, sound signal coding apparatus, program" was invented by Takehiro Moriya (Tokyo), Yutaka Kamamoto (Tokyo) and Ryosuke Sugiura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sound signal downmixing method includes a step of obtaining, for each of two channels, a signal obtained by adding an input sound signal of one channel to a signal obtained by delaying an input sound signal of the other channel and multiplying the delayed input sound signal by a weight value as a delayed crosstalk-added signal of ...