Graphics pen for soft displays
First Claim
1. A graphics input device for use with location indicating means to present graphic data upon a computer controlled visual display characterized by including,a pen housing,a conductive stylus shaft secured within said housing having one end extending beyond said housing to act as a writing tip for generating a position signal,circumferential off-axis pressure responsive electrode means surrounding a portion of said stylus shaft for generating a variable output non-position signal in response to variable off-axis forces at any circumferential location on said stylus shaft, andmeans responsive to said variable output signal for modifying a visual characteristic of the graphic data.
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Accused Products
Abstract
A graphics input device for use with location indicating means to present graphic data upon a computer controlled visual display. The device includes a pen having a housing within which is disposed a conductive stylus shaft, one end extending beyond the housing to serve as the writing tip. A cylindrical off-axis pressure transducer encircles a portion of the stylus shaft within the housing, adjacent its writing end, for generating a variable output electrical signal proportional to the variable off-axis force applied to the stylus independently of the rotational orientation of the pen. A display processing and control system receives the variable signals and modifies a visual characteristic of the graphic data in response thereto.
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Citations
9 Claims
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1. A graphics input device for use with location indicating means to present graphic data upon a computer controlled visual display characterized by including,
a pen housing, a conductive stylus shaft secured within said housing having one end extending beyond said housing to act as a writing tip for generating a position signal, circumferential off-axis pressure responsive electrode means surrounding a portion of said stylus shaft for generating a variable output non-position signal in response to variable off-axis forces at any circumferential location on said stylus shaft, and means responsive to said variable output signal for modifying a visual characteristic of the graphic data.
Specification