Inventor
IKEDA SHIGEJI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “IKEDA SHIGEJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
10 patentsUS6266422B1Jul 24, 2001
Noise canceling method and apparatus for the same
NEC CORP70 citations95
US5978824ANov 2, 1999
Noise canceler
NEC CORP77 citations95
US6285768B1Sep 4, 2001
Noise cancelling method and noise cancelling unit
NEC CORP53 citations92
US6151614ANov 21, 2000
Adaptive filter and adapting method thereof
NEC CORP28 citations92
US5953380ASep 14, 1999
Noise canceling method and apparatus therefor
NEC CORP50 citations92
US5940455AAug 17, 1999
Adaptive filter with disabling circuit for fast tap weight convergence
NEC CORP34 citations92
US5727073AMar 10, 1998
Noise cancelling method and noise canceller with variable step size based on SNR
NEC CORP23 citations92
US5644641AJul 1, 1997
Noise cancelling device capable of achieving a reduced convergence time and a reduced residual error after convergence
NEC CORP30 citations92
US5636151AJun 3, 1997
Adaptive filter capable of removing a residual echo at a rapid speed
NEC CORP21 citations92
US5218560AJun 8, 1993
Circuit for controlling tap gains at rapid speed in an adaptive filter
NEC CORP3 citations63
SONY CORP
5 patentsUS7180806B2Feb 20, 2007
Memory device, refresh control circuit to be used for the memory device, and refresh method
SONY CORP9 citations72
US12142741B2Nov 12, 2024
Battery pack
SONY CORP0 citations62
US11777155B2Oct 3, 2023
Battery pack
SONY CORP0 citations62
US11462776B2Oct 4, 2022
Battery pack
SONY CORP0 citations62
US10797362B2Oct 6, 2020
Battery pack
SONY CORP0 citations51