David K. Roberts
23Patents
8h-index
10Co-inventors
72Inventor score
Filing activity: Jun 1, 2000 → Jul 28, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7907211B2 | Method and device for generating and detecting fingerprints for synchronizing audio and video | Electricity | 160 | Active |
| US8020000B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 51 | Active |
| US9479831B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 21 | Active |
| US7035310B1 | Generating a cyclic sequence of frequencies | Electricity | 15 | Expired |
| US9066114B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 14 | Active |
| US9407962B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 13 | Active |
| US8660267B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 12 | Active |
| US8358376B2 | Method and device for generating and detecting fingerprints for synchronizing audio and video | Electricity | 10 | Active |
| US8817183B2 | Method and device for generating and detecting fingerprints for synchronizing audio and video | Electricity | 7 | Active |
| US7190979B1 | Battery economizing in a communications system | Emerging Cross-Sectional Technologies | 7 | Expired |
| US9712853B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 6 | Active |
| US10045054B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 4 | Active |
| US8665987B2 | Space-time/space-frequency coding for multi-site and multi-beam transmission | Electricity | 4 | Active |
| US7603559B2 | Real-time signature embedding in video | Electricity | 3 | Expired |
| US6876691B1 | Method of the receiver for frequency acquisition in a frequency hopping system | Electricity | 3 | Expired |
| US10250916B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 2 | Active |
| US8023689B2 | Robust signature for signal authentication | Electricity | 1 | Active |
| US9325404B2 | Multiple antenna transmission with variable diversity gain | Electricity | 1 | Active |
| US11109074B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 0 | Active |
| US11641494B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 0 | Active |
| US9768846B2 | Multiple antenna transmission with variable diversity gain | Electricity | 0 | Active |
| US10595053B2 | Method and device for generating and detecting a fingerprint functioning as a trigger marker in a multimedia signal | Electricity | 0 | Active |
| US8971458B2 | Space-time/space-frequency coding for multi-site and multi-beam transmission | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.