System for utilizing object oriented approach in a portable pen-based data acquisition system by passing digitized data by data type to hierarchically arranged program objects
US5630168A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0488
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object oriented database data acquisition device having a housing with at least one substantially planar surface and a video screen positioned thereon. The device includes a digitizer positioned substantially coextensively under the video screen and a pen having a power source for activating the digitizer. Means for controlling the data acquisition device includes controllers comprising a first microprocessor, a second microprocessor connected to said digitizer and first processor for scanning the digitizer, a third microprocessor connected to said video screen for controlling screen images, a power manager connected to the first processor, the power manager including a power source and controller, program storage, and a program stored in the program storage for controlling the microprocessors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.