John C. Schafer
14Patents
11h-index
9Co-inventors
61Inventor score
Filing activity: Jul 29, 1993 → Jul 8, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5598525A | Apparatus, systems and methods for controlling graphics and video data in multimedia data processing and display systems | Physics | 104 | Expired |
| US5506604A | Apparatus, systems and methods for processing video data in conjunction with a multi-format frame buffer | Physics | 86 | Expired |
| US5625379A | Video processing apparatus systems and methods | Physics | 51 | Expired |
| US5977960A | Apparatus, systems and methods for controlling data overlay in multimedia data processing and display systems using mask techniques | Physics | 48 | Expired |
| US5402513A | Video window generator with scalable video | Physics | 40 | Expired |
| US8253750B1 | Digital media processor | Physics | 37 | Active |
| US6073158A | System and method for processing multiple received signal sources | Physics | 30 | Expired |
| USRE39898E1 | Apparatus, systems and methods for controlling graphics and video data in multimedia data processing and display systems | General | 27 | Expired |
| US5440683A | Video processor multiple streams of video data in real-time | Physics | 26 | Expired |
| US5577203A | Video processing methods | Physics | 15 | Expired |
| US5821918A | Video processing apparatus, systems and methods | Physics | 13 | Expired |
| US5581280A | Video processing apparatus, systems and methods | Physics | 10 | Expired |
| US5402506A | Apparatus for quantizing pixel information to an output video display space | Physics | 8 | Expired |
| US5542038A | Method and system for generating dynamic zoom codes | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.