Self-contained pen computer with built-in display

Details Self-contained pen computer with built-in display Self-contained pen computer with built-in display

1997-10-06

2000-10-10

Hjerpe, Richard A.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Stylus

345126, 345156, 382188, 178 1901, G09G 500

Patent

active

061306665

ABSTRACT:
A self-contained pen computer which is capable of collecting and recording data representative of handwritten strokes of the pen, and displaying such data in a display screen which is a part of the pen. In the housing of the pen, a pressure sensor is included at the tip of the pen, and a motion sensor which outputs signals describing the motion of the pen, so that handwritten data can be acquired without the need for a special writing surface. These sensors are connected to a signal processing circuit which includes an analog-to-digital converter to convert motion signals and pressure sensor signals into digital code. A microprocessor or microcontroller interprets the digitized motion data, stores the processed data in a memory such as a chip storage device, directs such data to a built-in display such as an LCD, which can display images in real-time corresponding to the processed motion signals, as well as images stored in memory. This display can be driven directly by the processor or by its own dedicated controller. The pen also includes an energy source, such as a battery or solar panel, to power all circuitry.

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