Display generator for simulating vehicle operation
US4182053A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1977 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Sep 14, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B9/05
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A plurality of signals are generated to represent different simulated picture elements, such as markers, road lines, obstacles, etc., which might be encountered along the pathway of a vehicle such as an automobile or an aircraft. These signals are separated into groups representing height, longitudinal and lateral dimensions in three-dimensional space and corresponding intensity levels for each of various picture elements to be displayed, and the signals in each group are multiplexed together to form a composite signal for each of these signal components. The height, longitudinal and lateral groups of multiplexed signals are transformed to perspective form in accordance with a "perspective" transformation. Curvature may be given to the simulated pathway by transforming the composite perspective lateral signal in response to a curve signal generator. The composite horizontal signal modified in accordance with vehicle heading is fed to the horizontal control circuits of the display device. Finally, a composite multiplexed signal in accordance with the desired "intensity" of the displayed picture elements is modified in accordance with the longitudinal axis composite signal so that in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.