Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6223194 | Adaptive filter, step size control method thereof, and record medium therefor | — | 2001-04-24 |
| 5784304 | Adaptively controlled filter | — | 1998-07-21 |
| 5440583 | Decision feedback equalizer with second-order recursive filter controlled with two feedback coefficients | — | 1995-08-08 |
| 5084865 | Echo canceller having FIR and IIR filters for cancelling long tail echoes | — | 1992-01-28 |
| 5042026 | Circuit for cancelling whole or part of a waveform using nonrecursive and recursive filters | Masaru Yamaguchi, Masanobu Arai, Takenori Ogata | 1991-08-20 |
| 4786882 | Quadriphase phase modulation system | — | 1988-11-22 |
| 4631721 | Bidirectional communication system of a two-wire bus comprising an active terminator | Tatsuhiro Ono, Haruhiko Tsuchiya, Yuji INOUE | 1986-12-23 |
| 4472813 | Transmission system for intentionally violating a class IV partial response code to distinguish subsidiary signals from an error | Eiichi Kobayashi | 1984-09-18 |