Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10656219 | Disconnection detecting device, signal processing unit and disconnection detection method | — | 2020-05-19 |
| 8346830 | Digital signal processing apparatus | — | 2013-01-01 |
| 7590460 | Audio signal processor | Naotoshi Nishioka, Hiroyuki Toda | 2009-09-15 |
| 7543130 | Digital signal processor for initializing a ram | — | 2009-06-02 |
| 7492289 | Signal processing method and device | — | 2009-02-17 |
| 7247784 | Musical sound generator, portable terminal, musical sound generating method, and storage medium | Ichiro Futohashi | 2007-07-24 |
| 7235733 | Musical tone reproducing apparatus and portable terminal apparatus | — | 2007-06-26 |
| 7102070 | Musical tone reproducing apparatus and method and portable terminal apparatus | — | 2006-09-05 |
| 7020498 | Portable telephone | — | 2006-03-28 |
| 6513123 | Power saving control by predetermined frequency slot timing signal based start index and halt instruction termination signal | Yusuke Yamamoto | 2003-01-28 |
| 6442622 | Digital signal processor and digital signal processing method | Yusuke Yamamoto, Ritsuo Matsushita | 2002-08-27 |
| 6397321 | Digital signal processor | Yusuke Yamamoto | 2002-05-28 |
| 6360328 | Plural sampling frequency signal processing by performing designated routines during sub-multiple time slots of each period | Yusuke Yamamoto | 2002-03-19 |
| 6263036 | Asynchronous signal input apparatus and sampling frequency conversion apparatus | Yusuke Yamamoto, Ichiro Futohashi | 2001-07-17 |