Browse Prior Art Database

Stationary, Single-Digit Actuated Mouse Which Requires No Working Surface

IP.com Disclosure Number: IPCOM000111789D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 59K

Publishing Venue

IBM

Related People

Greer, TD: AUTHOR [+2]

Abstract

Disclosed is a mouse which requires no working surface. The mouse can either emulate a joystick or a regular mouse depending on the device driver that monitors it.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 55% of the total text.

Stationary, Single-Digit Actuated Mouse Which Requires No Working
Surface

      Disclosed is a mouse which requires no working surface.  The
mouse can either emulate a joystick or a regular mouse depending on
the device driver that monitors it.

Hardware Design

      As the Figure illustrates, the mouse design consists of a
rectangular plastic box with a single hole near one end.  Located
inside and concentric to the hole is a moveable ring which translates
finger motion into x and y coordinates in the same manner that
conventional joysticks translate stick motion into x-y position
changes.  This is done by attaching the ring to two potentiometers
such that x-direction motion moves one potentiometer, y-direction
motion moves the other potentiometer, and any combination of x-y
motion moves both potentiometers.  This design emulates a
conventional joystick and could use standard joystick drivers.

      Another method of sensing finger motion would be to line the
actuator hole with a pressure-sensitive material.  (Many methods are
available to sense pressure including force-sensing resistors,
piezoelectric pressure transducers, and variable capacitance
devices.)  Finger pressure against the sides of the hole would
produce a signal which would be a function of the direction the user
is pressing and the pressure exerted.  Circuitry in the mouse encodes
this information and transmits it either as a change of resistance in
the case of joystick emulation or as a...