Computer control
US4935728A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03548
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer pointing system employs two modes of moving a marker on a computer display in correspondence with movement of a finger-grippable element within a pointer area of movement wherein one of the modes of movement produces a movement of the marker proportional to movement of the finger-grippable element and the second mode produces movement of the marker which is equal to the product of a distance of the marker from an edge of a display area of movement times the quotient of the distance of movement of the finger-grippable element divided by the distance of the finger-grippable element to an edge of the pointer area of movement. The second mode can be called by movement of the finger-grippable element at a rate greater than a predetermined rate or at a position within an outer ring area of the pointer area of movement. Edge regions of the pointer area of movement define macro instruction regions which, when called by an operation of a switch, pass macro instructions to a user program. An index of pages of a file having a plurality of pages can be displayed by selecting an edge region and can be used to select the page to be presented on the display of the user program. Grating…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.