Qin Cai
13Patents
7h-index
19Co-inventors
59Inventor score
Filing activity: Jun 27, 2003 → Dec 15, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8605890B2 | Multichannel acoustic echo cancellation | Electricity | 37 | Active |
| US8675926B2 | Distinguishing live faces from flat surfaces | Physics | 29 | Active |
| US7844456B2 | Grammar confusability metric for speech recognition | Physics | 15 | Active |
| US7748030B1 | Licensing digital content use | Physics | 11 | Active |
| US8339459B2 | Multi-camera head pose tracking | Physics | 8 | Active |
| US9864430B2 | Gaze tracking via eye gaze model | Physics | 8 | Active |
| US9430040B2 | Eye gaze detection with multiple light sources and sensors | Physics | 8 | Active |
| US9552061B2 | Eye gaze tracking using binocular fixation constraints | Physics | 4 | Active |
| US9684827B2 | Eye gaze tracking based upon adaptive homography mapping | Physics | 2 | Active |
| US10146305B2 | Eye gaze tracking using binocular fixation constraints | Physics | 0 | Active |
| US12344622B2 | Refining method of midbody of latamoxef sodium | Emerging Cross-Sectional Technologies | 0 | Active |
| US9875977B2 | Packaging process of electronic component | Electricity | 0 | Active |
| US10083925B2 | Packaging process of electronic component | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.