| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 6 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | United States | 4 | |
| #4 | China | 3 | |
| #5 | Hong Kong | 3 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Audio-visual technology | |
| #3 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Resonators | |
| #3 | Electric digital data processing | |
| #4 | Image data processing | |
| #5 | Speech analysis |
| # | Name | Total Patents |
|---|---|---|
| #1 | Barratt Lachlan Paul | 21 |
| Publication | Filing date | Title |
|---|---|---|
| WO2015149115A1 | Modified digital filtering with sample zoning | |
| CN105393554A | Audio filters utilizing sine functions |