Browse Prior Art Database

THREE DIMENSIONAL INPUT STYLUS

IP.com Disclosure Number: IPCOM000026168D
Original Publication Date: 1990-Aug-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 89K

Publishing Venue

Xerox Disclosure Journal

Abstract

Electromechanical mechanisms which translate three dimensional manual motion into electrical signals are known to be used in remote manipulators, which are used to perform delicate operations in hazardous environments. The present invention utilizes similar technology to implement a workstation cursor control device, capable of providing graphical cursor control for 3- dimensional images displayed on a workstation.

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XEROX DISCLOSURE JOURNAL

THREE DIMENSIONAL INPUT Proposed Classification STYLUS U.S. C1.364/927.1 David E. Damouth Int. C1. G06f 1/00

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XEROX DISCLOSURE JOURNAL - Vol. 15, No. 4 July/August 1990 275

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THREE DIMENSIONAL INPUT STYLUS(Cont'd)

Electromechanical mechanisms which translate three dimensional manual motion into electrical signals are known to be used in remote manipulators, which are used to perform delicate operations in hazardous environments. The present invention utilizes similar technology to implement a workstation cursor control device, capable of providing graphical cursor control for 3- dimensional images displayed on a workstation.

As represented in the figure, an embodiment of the present invention is as a stylus 10, linked by a light-weight, rigid shaft 12 to an X-Y pivot 14 mounted at some point above a planar writing surface 16. Shaft 12 is connected to stylus 10 at tip 18 by a ball and socket type connection. The position of the stylus tip is determined by a pair of rotary encoders located within X-Y pivot
14. Moreover, the shaft is free to slide through the X-Y pivot, the shaft displacement being determined by a linear encoder 20, operatively connected to the X-Y pivot. The combination of the signals provide by the three encoders provides a continuous indication of the 3-dimensional position of the stylus tip in a polar coordinate fashion.

Used in the generatio...