Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304132 | Belt mounted clip board holder | — | 1989-10-24 |
| 4875097 | Perspective processing of a video signal | — | 1989-10-17 |
| 4873568 | Digital video effects apparatus | John Abt, Ronnie D. Barnett | 1989-10-10 |
| 4858011 | Video switcher system with modular architecture | Peter D. Symes, Richard S. Bannister, Thomas A. Grancey, Richard A. Frasier, John Abt +4 more | 1989-08-15 |
| 4853784 | Video switcher with independent processing of selected video signals | John Abt, Ronnie D. Barnett, James E. Blecksmith, Kevin D. Windrem, Neil R. Olmstead +4 more | 1989-08-01 |
| 4851912 | Apparatus for combining video signals | Kevin D. Windrem | 1989-07-25 |
| 4823183 | Video mixer with multicolor boarder | John Abt | 1989-04-18 |
| 4821269 | Diagnostic system for a digital signal processor | David E. Lake, Jr., James E. Blecksmith, Ronnie D. Barnett, John Abt | 1989-04-11 |