Douglas J. Doornink
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Douglas J. Doornink (? – ?)
Please add referenced biography.
Documents Authored by Douglas Doornink
- D. J. Doornink and J. C. Dalrymple, "The Architectural Evolution of a High-Performance Graphics Terminal," in IEEE Computer Graphics and Applications, vol. 4, no. 4, pp. 47-54, April 1984, doi: 10.1109/MCG.1984.276144. This case study of the design of the Tektronix 4115B details the design constraints, shows how the architecture evolved from the Tektronix 4113, and shows how performance was gained by adding a microcoded picture processor and some special-purpose hardware.
Products by Douglas Doornink
Components by Douglas Doornink
Patents by Douglas J. Doornink
| Page | Office | Number | Title | Inventors | Company | Filing date | Grant date |
|---|---|---|---|---|---|---|---|
| Patent US 4157537A | US | 4157537A | Display system utilizing digital-analog vector generation | Thomas B. Cheek • Douglas J. Doornink • Roger M. Handy • David E. Heinen • Joseph H. Hubert • Ronald J. Wilson | Tektronix Inc | 1976-04-19 | 1979-06-05 |
| Patent US 4190834A | US | 4190834A | Circuit and method for producing a full-screen cross-hair cursor on a raster-scan type display | Douglas J. Doornink | Tektronix Inc | 1978-10-16 | 1980-02-26 |
| Patent US 4386367A | US | 4386367A | System and method for converting a non-interlaced video signal into an interlaced video signal | Jim Peterson • Douglas J. Doornink | Tektronix Inc | 1981-06-26 | 1983-05-31 |
| Patent US 5084830A | US | 5084830A | Method and apparatus for hidden surface removal | Douglas J. Doornink • John C. Dalrymple | Tektronix Inc | 1987-10-26 | 1992-01-28 |