Compact electronic apparatus equipped with graphic representing function
US5303338A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0225
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a compact electronic apparatus, a keyboard and a display unit are provided, and also either a function formula or an inequality inputted from the keyboard is displayed in a graphic representation on the display unit. The compact electronic apparatus further comprises a trace function for sequentially pointing a point on one of the displayed graphic representations and simultaneously for displaying coordinate data, and a control unit for moving one graphic representation to a trace of another graphic representation when a plurality of graphic representions are being displayed, and also for changing a movement amount of the trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.