Hand-held electronic writing tool

Details Hand-held electronic writing tool Hand-held electronic writing tool

1994-02-01

1995-07-18

Chin, Stephen

Telegraphy

Systems

Position coordinate determination for writing

345179, G08C 2100

Patent

active

054343712

ABSTRACT:
A hand-held electronic writing implement comprises a writing tip for marking a surface and a pressure sensor located at the writing tip for emitting a pressure signal once the writing tip contacts the writing surface. An accelerometer sensor is also located at the writing tip for sensing the acceleration of the tip over the surface and emitting an acceleration signal based on the acceleration of the tip. The pressure signals and acceleration signals are transmitted to a processing circuit located within the implement. An analog-to-digital converter is used to convert the signals into a digital code which is recorded in a recording chip within the instrument. A power source is used to power the electronics of the implement. The writing implement is used in conjunction with a receiver capable of receiving digital information such as a computer having a translating package which translates the digital information in order to determine the original markings made by the writing tip on the writing surface. The translated markings are displayed on a display and are a reproduction on the original markings. The original markings are translated and displayed only when an initialization character, which is predetermined, is marked on the writing surface by the writing tip.

REFERENCES:
patent: 5151950 (1992-09-01), Hullender
patent: 5159321 (1992-10-01), Masaki et al.
patent: 5247137 (1993-09-01), Epperson
patent: 5303312 (1994-04-01), Comerford et al.
IBM Technical Disclosure Bulletin, vol. 16, No. 12, May 1974.

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