Leon C. Williams
64Patents
21h-index
36Co-inventors
88Inventor score
Filing activity: May 21, 1986 → Mar 16, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5642202A | Scan image target locator system for calibrating a printing system | Electricity | 94 | Expired |
| US5513282A | Method and apparatus for controlling the processing of digital image signals | Electricity | 71 | Expired |
| US6594401B1 | Detection and elimination of scanning artifacts | Electricity | 69 | Expired |
| US5809177A | Hybrid error diffusion pattern shifting reduction using programmable threshold perturbation | Electricity | 51 | Expired |
| US5237432A | Image scaling apparatus | Physics | 49 | Expired |
| US5959290A | Image input device and method for providing scanning artifact detection | Electricity | 45 | Expired |
| US5729663A | Method and apparatus for gray screening | Electricity | 44 | Expired |
| US5274472A | High addressability image generator using pseudo interpolation of video and screen data | Physics | 38 | Expired |
| US5778156A | Method and system for implementing fuzzy image processing of image data | Physics | 38 | Expired |
| US5327262A | Automatic image segmentation with smoothing | Electricity | 38 | Expired |
| US6181829A | Method and system for classifying and processing of pixels of image data | Electricity | 37 | Expired |
| US6144775A | Method and system for storing error values for an image conversion process utilizing dynamic error diffusion | Electricity | 36 | Expired |
| US6175427A | System and method of tonal correction of independent regions on a compound document | Physics | 32 | Expired |
| US5880857A | Error diffusion pattern shifting reduction through programmable threshold perturbation | Electricity | 30 | Expired |
| US5608821A | Method of high addressability error diffusion | Electricity | 29 | Expired |
| US5790211A | Platen cover for a digital document scanner with electrically switchable reflectance modes | Electricity | 26 | Expired |
| US6229923A | Method and system for classifying and processing of pixels of image data | Physics | 26 | Expired |
| US6449396B1 | Compact rendering for processing binary high addressability images | Electricity | 25 | Expired |
| US5528384A | System and method for implementing fast high addressability error diffusion process | Electricity | 23 | Expired |
| US6608701B1 | Compact high addressability rendering | Electricity | 22 | Expired |
| US5579418A | Image interpolation apparatus | Physics | 22 | Expired |
| US4878119A | System for synchronizing integration pulses with integration signal in an asynchronous raster input scanner | Electricity | 20 | Expired |
| US5390029A | Method for controlling the processing of digital image signals | Physics | 19 | Expired |
| US5696601A | System and method for redistributing error values from an error diffusion process | Electricity | 19 | Expired |
| US9914309B2 | Method and apparatus for single-pass failed nozzle compensation | Electricity | 18 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.