Handwriting input device
First Claim
1. A handwriting input device having a pen body in a shape of a pen, said handwriting input device including, inside said pen body:
- a pen stem holder for holding a pen stem in such a way that a part of said pen stem sticks out of said pen stem holder through an opening provided at one end of said pen stem holder, said pen stem holder having a hemispherical projection formed in its middle portion;
an omnidirectional pressure sensor having an operation shaft formed integrally with an actuator;
a data processor for processing electric signals outputted from said sensor; and
a connector for connecting a tail cap portion of said pen stem holder to said operation shaft of said sensor.
1 Assignment
0 Petitions
Accused Products
Abstract
A handwriting input device, despite having a simple structure, achieves correct acquisition of handwritten information. This input device has a pen stem housed inside a pen body formed in the shape of a pen, with the tip of the pen stem left sticking out of an opening formed at one end. This input device further has a pen stem holder having a hemispherical projection formed in its middle portion, an omnidirectional pressure sensor having an actuator and an operation shaft formed integrally, a data processor for processing electric signals outputted from the sensor, and a connector for connecting the tail-end cap portion of the pen stem holder to the operation shaft of the sensor. Thus, this input device detects the force applied to the tip of the pen stem by sensing pressure; in addition, it also detects the up/down movement of the pen stem by sensing pressure.
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Citations
20 Claims
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1. A handwriting input device having a pen body in a shape of a pen, said handwriting input device including, inside said pen body:
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a pen stem holder for holding a pen stem in such a way that a part of said pen stem sticks out of said pen stem holder through an opening provided at one end of said pen stem holder, said pen stem holder having a hemispherical projection formed in its middle portion; an omnidirectional pressure sensor having an operation shaft formed integrally with an actuator; a data processor for processing electric signals outputted from said sensor; and a connector for connecting a tail cap portion of said pen stem holder to said operation shaft of said sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A handwriting input device comprising;
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a pen body in a shape of a pipe having an opening at one end; a pen stem holder, placed inside said pen body with its front end directed to said opening and its rear end directed inward, for holding a pen stem; a holder supporter, provided inside said pen body, for holding said pen stem holder in such a way that said pen stem holder is inclinable between its front and rear ends, for preventing said pen stem holder from moving toward its rear end, and for making a tip of the pen stem held in said pen stem holder stick out of said opening; a pressure sensor, provided inside said pen body with its pressure-sensing surface approximately perpendicular to an axis of said pen body, for sensing pressure separately in different regions on the pressure-sensing surface; an actuator provided between said pen stein holder and said pressure sensor and placed in contact with substantially the entire pressure-sensing surface of said pressure sensor; an actuator supporter for supporting said actuator in such a way that said actuator is inclinable with respect to the pressure-sensing surface of said pressure sensor; a connector, having resilience, for connecting the rear end of said pen stem holder to said actuator; and an information generator for generating, in accordance with an output signal of said pressure sensor, information as to force applied to the tip of the pen stem held by said pen stem holder. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification