| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 3 | |
| #4 | Germany | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Netherlands | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Speech analysis | |
| #2 | Loudspeakers and microphones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zurcher Jean-Frederic | 6 |
| #2 | Zurcher J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2545966A1 | Method for developing an excitation signal for a channel or linear prediction speech synthesizer and excitation signal generator for such a synthesizer | |
| FR2544901A1 | Channel vocoder provided with means for compensating for parasitic modulations of the synthetic speech signal | |
| US4079197A | Voice transcoder in helium atmosphere | |
| US4063030A | Detection circuit for significant peaks of speech signals | |
| GB1445855A | Apparatus for measuring the pitch period of the basic sounds of speech |