Hand-writing input apparatus

Details Hand-writing input apparatus Hand-writing input apparatus

1990-12-26

1991-11-26

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

382 69, G08C 2100

Patent

active

050675737

ABSTRACT:
An electronic tablet which receives handwritten input via an input pen, including a receptacle for the pen and a detector operative to detect the presence of the pen in the receptacle. Preferably, a warning signal generator is also provided to generate, at appropriate times, a warning signal indicating absence of the pen from the receptacle.

REFERENCES:
patent: 4927986 (1990-05-01), Daly
patent: 4973900 (1990-11-01), Sindeband et al.
patent: 4988836 (1991-01-01), Murray

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