Abstract: The present invention provides movable visual communication systems, more specifically movable electronic whiteboard systems. The invention provides an electronic whiteboard having at least one positioning member and a guide element adapted to receive the positioning member, wherein the electronic whiteboard and the positioning member are movable along the guide element. The guide element can house an extendable or retractable line that maintains connectivity with the electronic whiteboard at any point along the guide element.

Abstract: A method and apparatus for use with a whiteboard and an archive memory, the whiteboard having a surface for displaying images, the method for grouping presented images together for storage in the archive memory and password protecting the image groups in separate session files where a password is subsequently required to access the session file images.

Abstract: A stereoscopic graphics display terminal (10) having an image data processor (22) generates stereoscopic image data from three-dimensional image data. In a preferred embodiment, the graphics display terminal receives from a main or host computer (12) three-dimensional image data corresponding to a three-dimensional representation of an object. The three-dimensional image data are typically generated by an application program that resides in the host computer. The image data processor includes an image orienting system (74) that receives the three-dimensional image data and adaptes such data to represent a preselected orientation of the object and thereby provide an observer with a preselected view of the object. The adaptation of the three-dimensional image data by the image orienting system entails image manipulations that include rotating, translating, and scaling the size of the image.

Abstract: The present invention constitutes a cursor image (36) for use in graphics imaging systems for providing images with three-dimensional qualities. The cursor indicates position within a three-dimensional space. The cursor comprises a reference symbol (38) located at a reference point (58) on a reference plane (60), a pointer symbol (40) located pointing to the position (42), and a tether symbol (44) connecting the reference symbol and the pointer symbol. The cursor image includes depth cue features which assist the observer in gauging the depth of the position being indicated. The cursor is preferably displayed with a stereoscopic imaging system (10) employing a liquid crystal stereo switch unit (16). In such a system the cursor image is displayed on a cathode-ray tube (12) in left and right perspective projections (46) and (48) of differing binocular disparity which are used by the observer to form a single three-dimensioinal image of the cursor.