Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8532801 | Method and apparatus for processing digital audio signal and related computer program | — | 2013-09-10 |
| 7424332 | Audio signal processing apparatus and related computer program | Kazuhito Okayama, Isao Hijikata, Ryouichi Nagata, Haruyuki MORI | 2008-09-09 |
| 7263407 | Method and apparatus for processing digital audio signal | — | 2007-08-28 |
| 7024260 | Method and apparatus for processing digital audio signal | — | 2006-04-04 |
| 7020604 | Audio information processing method, audio information processing apparatus, and method of recording audio information on recording medium | — | 2006-03-28 |
| 7003469 | Audio signal processing apparatus and method thereof | Kazuhito Okayama | 2006-02-21 |
| 6697688 | Audio information processing system | — | 2004-02-24 |
| 6449519 | Audio information processing method, audio information processing apparatus, and method of recording audio information on recording medium | — | 2002-09-10 |
| 6445655 | Interface circuit and optical disk manufacturing system that uses same | — | 2002-09-03 |
| 6343028 | Interface circuit and optical disk manufacturing system that uses same | — | 2002-01-29 |
| 5926121 | Signal processing apparatus | — | 1999-07-20 |
| 5638070 | Signal processing method and apparatus for transforming N-bit codes to M-bit codes wherein M is greater than N | — | 1997-06-10 |
| 5592161 | Method and apparatus for processing data signals in high quality without deterioration of signal-noise ratio | — | 1997-01-07 |
| 4961205 | Interface circuit | — | 1990-10-02 |
| 4847873 | Interface circuit | Minoru Kanai | 1989-07-11 |