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2017-10-24 |
| 7180806 |
Memory device, refresh control circuit to be used for the memory device, and refresh method |
Shinichi Fukuda, Isao Ohdaira, Toshihiko Sato |
2007-02-20 |
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Noise cancelling method and noise cancelling unit |
— |
2001-09-04 |
| 6266422 |
Noise canceling method and apparatus for the same |
— |
2001-07-24 |
| 6151614 |
Adaptive filter and adapting method thereof |
— |
2000-11-21 |
| 5978824 |
Noise canceler |
— |
1999-11-02 |
| 5953380 |
Noise canceling method and apparatus therefor |
— |
1999-09-14 |
| 5940455 |
Adaptive filter with disabling circuit for fast tap weight convergence |
— |
1999-08-17 |
| 5727073 |
Noise cancelling method and noise canceller with variable step size based on SNR |
— |
1998-03-10 |
| 5644641 |
Noise cancelling device capable of achieving a reduced convergence time and a reduced residual error after convergence |
— |
1997-07-01 |
| 5636151 |
Adaptive filter capable of removing a residual echo at a rapid speed |
— |
1997-06-03 |
| 5218560 |
Circuit for controlling tap gains at rapid speed in an adaptive filter |
Akihiko Sugiyama |
1993-06-08 |
| 4908863 |
Multi-pulse coding system |
Tetsu Taguchi |
1990-03-13 |