Inventor
OKUMURA HIRAKU
JP13 patents
⚠️ This page may combine multiple inventors who share the name “OKUMURA HIRAKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
9 patentsUS7925006B2Apr 12, 2011
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus
YAMAHA CORP43 citations96
US7403609B2Jul 22, 2008
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus
YAMAHA CORP15 citations91
US7697696B2Apr 13, 2010
Audio amplification apparatus with howling canceler
YAMAHA CORP8 citations82
US7925008B2Apr 12, 2011
Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus
YAMAHA CORP5 citations72
US7899195B2Mar 1, 2011
Adaptive howling canceller
YAMAHA CORP5 citations62
US7574005B2Aug 11, 2009
Howling frequency component emphasis method and apparatus
YAMAHA CORP3 citations62
US12288546B2Apr 29, 2025
Live data distribution method, live data distribution system, and live data distribution apparatus
YAMAHA CORP0 citations60
US12363496B2Jul 15, 2025
Audio signal processing method and audio signal processing apparatus
YAMAHA CORP0 citations50
US12342151B2Jun 24, 2025
Live data distribution method, live data distribution system, and live data distribution apparatus
YAMAHA CORP0 citations49