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5122654 |
Ergonomic thumb-actuated trackball combined with control switches
An ergonomically designed trackball cursor pointing device in which the cursor movement ball and function switches or buttons are respectively positioned to allow movement of the ball by the thumb...
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5078019 |
Trackball device
A trackball device comprising a housing having a circular opening formed in a top wall thereof, a ball received in the housing and partially projecting through the circular opening, a pair of...
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5063289 |
Combined mouse and trackball
A combined mouse and trackball having its control ball (15) extend past cover 1. Cover 1 has neck hinges (5) so that it pivots in relations to opposing cover (17). A cable (33) at the front...
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5008528 |
Invertible trackball
The present invention relates to cursor control devices for computers, and particularly relates to cursor control devices for personal computers which involve the use of a ball rotatable by the...
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4982618 |
Multifunction tactile manipulatable control
A multifunction human digit control includes a rotating cylinder journalled in a movable bar slidable in a groove in a deflectable support track. Rotation of the cylinder by a thumb or finger...
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4952919 |
Trackball mechanism
A trackball-type input device (10) uses a retainer (114) to secure a ball (80) to a housing (12) so that a large segment (164) of the ball (80) protrudes from the housing (12) for manipulation by...
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4939508 |
Point and select device
A point and select device is disclosed in which a sphere protruding from one major surface of a housing can serve as either a trackball or the moving element in a mouse. Actuators on either side of...
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4933670 |
Multi-axis trackball
A first electromechanical transducer (40) generates a first electrical signal indicative of rotation of a ball (A) relative to a first axis. A second electromechanical transducer (50) generates a...
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4908791 |
Switch display encoder apparatus
A sensing system connects to a switch display encoder apparatus and monitors the rotational speed of a plurality of encoders in all directions independently and responds to rate-aided commands...
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4857902 |
Position-dependent interactivity system for image display
An interactive video display system with tight coupling between user-input and the images displayed to provide a feeling of real control by the user. A library of frames of video data is stored in...
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4839805 |
Dual control of image level and window parameters of a display and the like
Dual control of image level and window of a display is accomplished by rotation of a single trackball. Rotation of the trackball within a first band including the X axis controls one parameter, and...
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4575086 |
Trackball device
The trackball device comprises cylindrical first and second supports. First and second code wheels are respectively coupled to the supports and are rotatable therewith. First and second reader...
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4562347 |
Input device featuring both trackball and mouse capability
An input apparatus for use with a computer, including a housing having a top aperture and a bottom aperture, a spherical member supported in the housing so that a portion thereof protrudes through...
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4538476 |
Cursor control assembly
An improved ball-type cursor control assembly is provided for controlling the position of a cursor or the like within the field of a video display. The control assembly comprises two orthogonally...
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4493992 |
Adapter circuit for trackball device
An adapter includes a program-controlled microprocessor provided with input means adapted to be coupled to the output of a trackball-type position control device, output terminals and selection...
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4371813 |
Circuit arrangement for moving a marker over the picture screen
An arrangement for displacing a marker on the picture screen of a display device, in which, to shift the marker rapidly as well as exactly, the marker is displaced by means of a rotary pulse...
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4254416 |
Variable size character generator
A system for displaying, performing positioning, sizing, and performing supportive composition functions for newspaper advertising layout in which characters and symbols are displayed with a height...
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4167729 |
Apparatus for obtaining multi-spectral signatures
A multispectral data classification system has an improved apparatus for the identification of training samples of multispectral image data useful in the computation of spectral signatures. A set...
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3789218 |
TRACKER BALL ARRANGEMENTS
A tracker ball, supported by a caster, drives two mutually perpendicular conical members, each mounted on a stub axle carrying an apertured disc. Light shone through each disc is detected by two...
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3643148 |
BALL TRACKER ASSEMBLY
A ball tracker adapted for use in polar coordinate axis systems employs a rotating subframe including a rotatably mounted ball member and two ball rotation responsive sensors disposed 90° apart...
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3625083 |
Title is not available
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