US Patent:
20070195069, Aug 23, 2007
Inventors:
Robert G. Kable - Dublin OH, US
Adam T. Kable - Powell OH, US
Lawrence J. Heringer - Sunbury OH, US
Brent B. Wilson - Plain City OH, US
Assignee:
Scriptel Corporation - Columbus OH
International Classification:
G06F 3/033
Abstract:
Pen apparatus, system and method of assembly wherein a pick-up rod assembly performs in conjunction with a normally closed switch to define a pen-up tip switch condition. Coordinate signal information is provided from the pick-up rod assembly to an amplification network carried by an elongate printed circuit board. A biased signal forming a component of the a.c. amplification network is additionally used in conjunction with a comparator and the noted normally closed switch to provide pen-up and pen-down orientation data to a host system.