Alpha Hou
17Patents
9h-index
9Co-inventors
65Inventor score
Filing activity: Jun 30, 1997 → Feb 13, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6054707A | Portable scanners capable of scanning both opaque and transparent materials | Electricity | 27 | Expired |
| US6459506B1 | Lightweight dual-mode mobile scanner powered from a universal serial bus port | Electricity | 26 | Expired |
| US6587145B1 | Image sensors generating digital signals from light integration processes | Electricity | 24 | Expired |
| US6249618A | Circuit architecture and method for switching sensor resolution | Electricity | 21 | Expired |
| US6271939A | Transparent and flatbed scanner | Electricity | 19 | Expired |
| US6546152B1 | Method and apparatus for providing images in portable 2-D scanners | Physics | 15 | Expired |
| US6891979B2 | Pocket scanners | Physics | 11 | Expired |
| US6104510A | Hybrid illumination system for accelerating light integration in image sensing systems | Electricity | 11 | Expired |
| US6704124B2 | Mobile scanners | Electricity | 9 | Expired |
| US6836361B2 | Method and apparatus to increase visual contrast for video projection screen | Physics | 7 | Expired |
| US6646682B1 | Linear tri-color image sensors | Electricity | 7 | Expired |
| US6596979B2 | Method and apparatus for scanning colors using multiple arrays of photodetectors | Electricity | 6 | Expired |
| US6275309A | Lightweight mobile scanners | Electricity | 5 | Expired |
| US6922284B1 | Method for automatically controlling the length of projection screen and multi-purpose apparatus thereof | Physics | 2 | Expired |
| US6031639A | Apparatus for scanning both opaque transparent originals | Electricity | 2 | Expired |
| US12217564B2 | Banknote validation device and processing inspection apparatus | Performing Operations; Transporting | 0 | Active |
| US6603108B2 | Image sensing modules for portable optical scanners | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.