Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658310 | Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus | — | 2003-12-02 |
| 6643674 | Digital filtering method and device and sound image localizing device | Tomoaki Ando | 2003-11-04 |