CA2308020A1 - Pen-paper computer input device - Google Patents

Abstract

A special fountain pen and ordinary paper can be used to input human handwriting into a computer. The fountain pens tip would have stamped serration's in the horizontal and vertical directions which would indicate pen-paper motion to a vibration sensor mounted in the tip (nib) of the pen. The pens serration's would cause the nibs two sides to vibrate as the tip traveled across the paper. There would be one serration for up movement, one for down and one for right to left horizontal movement. The vibration sensor would detect pen paper movement in each half of the nib with both halves vibrating indicating horizontal or diagonal movement depending on the relative strengths of the signals.
The signals would be amplified and coded to be transmitted wirelessly to a computer for further digital signal processing and handwriting analysis.

Claims (2)

1. A pen-paper handwriting input device measuring actual pen to paper relative motion by means of measured vibrations from uni-directional ridges engraved into the fountain pens nib tip and oriented to give varying amplitude signals based on the pens direction of motion which can be processed into decoding handwriting.

2. The low level vibrations would be amplified before modulating a radio-frequency oscillator built into the pen for wireless operation.