Pen-type computer input device with multiple spheres

Details Pen-type computer input device with multiple spheres Pen-type computer input device with multiple spheres

1992-12-23

1994-03-01

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Stylus

345164, G09G 302

Patent

active

052912132

ABSTRACT:
A pen-type computer input device operates in the same fashion as a mouse with the added advantage that the device has the features of a ball point pen having a narrow tip, with a small diameter ballpoint for tracing fine detail. The point may optionally deposit ink on the path traversed. The device has an elongate housing which may be grasped like a pen. A stack of contiguous spheres rotatably mounted within the housing serially transmits motion of the lowermost tip sphere to the uppermost sphere which operates as a mouse ball to provide computer signal input directly related to motion of the pen tip. The device may incorporate a mouse at the top or be adapted for retrofit to an existing mouse.

REFERENCES:
patent: 3376551 (1964-05-01), Armbruster
patent: 4562347 (1985-12-01), Hovey et al.
patent: 4853630 (1989-08-01), Houston
patent: 5027115 (1991-06-01), Sato et al.
patent: 5115227 (1992-05-01), Keiji
patent: 5210405 (1993-05-01), Toyoda et al.
patent: 5214428 (1993-05-01), Allen

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