Issued Patents 1997
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699104 | Broadcast channel lock system | — | 1997-12-16 |
| 5686954 | Program information broadcasting method program information display method, and receiving device | Tsukasa Yoshimura, Yoshitsugu Hattori | 1997-11-11 |
| 5684526 | System and method for responding to two-way broadcast programs | — | 1997-11-04 |
| 5682599 | Two-way broadcasting and receiving system with time limit and/or limit data | — | 1997-10-28 |
| 5668805 | Multiplex broadcasting method and system | — | 1997-09-16 |
| 5649284 | Multiplex broadcasting system | — | 1997-07-15 |
| 5606726 | Receiving unit for a two-way broadcasting system | — | 1997-02-25 |
| 5592213 | Receiving unit for two-way broadcasting including automatic display of operating state of a transmitting system | Junya Saito | 1997-01-07 |