| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 2 | |
| #2 | United States | 2 | |
| #3 | Australia | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | Denmark | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Electric digital data processing | |
| #2 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roberts Jerry B | 8 |
| #2 | Roberts Jerry | 2 |
| #3 | Keightley Leo | 1 |
| #4 | Roberts Jerry R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1096387A | Method and apparatus at outside display location touch force | |
| EP0563477A1 | Touch screen sensing apparatus | |
| US5060066A | Integrating-phase lock method and circuit for synchronizing overlay displays on cathode-ray-tube monitors of digital graphic information and video image information and the like | |
| GB8610792D0 | Synchronizing video sources | |
| GB8610793D0 | Synchronizing video sources |