Porthole window system for computer displays
US4868765A · kind A · utility
115Cited by
6References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1986 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jan 2, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A porthole window system for computer displays allows a user to look at a portion of a window which could otherwise not be seen. A porthole window acts as an opening in a window of the usual type through which underlying windows may be seen. A porthole window can have different features as desired, including links to selected source and target windows, real time movement on the display screen, and the ability to be updated when a target window is updated. The porthole system runs concurrently with the normal window handling system of the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.