Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882638 | PCM recording and reproducing apparatus having common data frame construction for signal sources of varying quantization bit number | Kazuhiro Sugiyama | 1989-11-21 |
| 4829525 | PCM signal reproducing apparatus including error/erasure correction circuit | Kazuhiro Sugiyama, Tohoru Inoue | 1989-05-09 |