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
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United States of America Patent
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May 13, 1997
Grant Date -
N/A
app pub date -
Oct 27, 1992
filing date -
Oct 27, 1992
priority date (Note) -
Expired
status (Latency Note)
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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.
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