Kevin J Mackey

US Patent:

49395076, Jul 3, 1990

Filed:

Aug 15, 1988

Appl. No.:

7/232061

Inventors:

Marian H. Beard - Sunnyvale CA
Perry A. Caro - Palo Alto CA
Jennifer B. Hsiao - San Jose CA
Kevin J. Mackey - Palo Alto CA
James G. Sandman - Palo Alto CA
Gary R. Steinbach - Mountain View CA
Donald R. Woods - Los Altos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G09G 100

US Classification:

340706

Abstract:

A user interface is represented on the display screen in the form of metaphoric objects, called icons, with which the user can interact by changing the input focus to a designated object by visually pointed to it via the input means, which thereafter permits manipulation of the designated object or interaction with data input/output relative to the designated object. This input means is also used to initially change the input focus to either the allocated emulating processor screen portion or to the remaining portion of the central processor display screen prior to interaction with the metaphoric objects in a selected screen portion, the change of the input focus causing subsequent user input via the input means to be directed to the selected screen portion until interrupted by a change in focus input to the other of the screen portions by the user via the input means. An icon may be a representation of a virtual object, such as a virtual floppy disk, that is accessible in either the host system world or in the emulating processor world even though the virtual floppy disk may have a filing system alien to the host system world.

US Patent:

51535777, Oct 6, 1992

Filed:

Mar 21, 1988

Appl. No.:

7/171506

Inventors:

Kevin J. Mackey - Palo Alto CA
Donald R. Woods - Los Altos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G09G 114

US Classification:

340793

Abstract:

An emulator emulates a processor that provides a display in which each character is presented in a foreground color on a background color. The emulator maps the foreground colors and background colors into gray pixel patterns for display, with the foreground colors being mapped differently than the background colors. Each background color is mapped into a respective gray pattern, with some of the gray patterns representing more than one background color if necessary. In general, the foreground colors are mapped to three pixel patterns--white, 50% gray, and black. For a given background color, two of these three gray patterns are chosen as most legible, and one is used for the lighter foreground colors and the other for the darker foreground colors. In the special case where the foreground color is the same as the background color, however, the foreground color is mapped to the same gray pattern as the background color so that the character is invisible.

US Patent:

51135175, May 12, 1992

Filed:

Jan 24, 1990

Appl. No.:

7/469722

Inventors:

Marian H. Beard - Sunnyvale CA
Perry A. Caro - Palo Alto CA
Jennifer B. Hsiao - San Jose CA
Kevin J. Mackey - Palo Alto CA
James G. Sandman - Palo Alto CA
Gary R. Steinbach - Mountain View CA
Donald R. Woods - Los Altos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06F 3153
G06F 1516
G06F 500

US Classification:

364200

Abstract:

A multiprocessor system comprises concurrent display of video data reflecting the operation of two processors in discrete portions of a single display screen with a user interface adapted for interaction with both processors. One processor controls the entire display while allocating a portion of the display screen for the use of the other processor which processor emulates a target processor system, for example, the IBM PC. A user interface is represented on the display screen in the form of metaphoric objects, called icons, with which the user can interact by changing the input focus to a designated object by visually pointed to it via the input means, which thereafter permits manipulation of the designated object of interaction with data input/output relative to the designated object. This input means is also used to initially change the input focus to either the allocated emulating processor screen portion or to the remaining portion of the central processor display screen prior to interaction with the metaphoric objects in a selected screen portion, the change of the input focus causing subsequent user input via the input means to be directed to the selected screen portion until interrupted by a change in focus input to the other of the screen portions by the user via the input means. An icon may be a representation of a virtual object, such as a virtual floppy disk, that is accessible in either the host system world or in the emulating processor world even though the virtual floppy disk may have a filing system alien to the host system world.

US Patent:

49370367, Jun 26, 1990

Filed:

Mar 21, 1988

Appl. No.:

7/170959

Inventors:

Marian H. Beard - Sunnyvale CA
Perry A. Caro - Palo Alto CA
Jennifer B. Hsiao - San Jose CA
Kevin J. Mackey - Palo Alto CA
James G. Sandman - Palo Alto CA
Gary R. Steinbach - Mountain View CA
Donald R. Woods - Los Altos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G09G 100

US Classification:

340706

Abstract:

A multiprocessor system comprises concurrent display of video data reflecting the operation of two processors in discrete portions of a single display screen with a user interface adapted for interaction with both processors. One processor controls the entire display while allocating a portion of the display screen for the use of the other processor which processor emulates a target processor system, for example, the IBM PC. To fully emulate another target processor system requires emulation of its screen facility and abstractions used in the display operations of the targeted system. The one processor is a general purpose host computer system having a central processor with real resources including I/O devices, main memory, a video display for displaying information on the display screen of the display and user input means, e. g. a keyboard and a mouse, to the host computer to provide input to the display screen. Also included in the system is at least one emulating computer having a processor emulating the target processor unit with interface means for emulating the previously identified real resources for the emulating processor including means in the host system responsive to the input/output of the emulating processor for sharing of the central processor real resources by the emulating processor.

US Patent:

48991368, Feb 6, 1990

Filed:

Apr 28, 1986

Appl. No.:

6/856525

Inventors:

Marian H. Beard - Sunnyvale CA
Perry A. Caro - Palo Alto CA
Jennifer B. Hsiao - San Jose CA
Kevin J. Mackey - Palo Alto CA
James G. Sandman - Palo Alto CA
Gary R. Steinbach - Mountain View CA
Donald R. Woods - Los Altos CA

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G09G 100

US Classification:

340706

Abstract:

A multiprocessor system comprises concurrent display of video data reflecting the operation of two processors in discrete portions of a single display screen with a user interface adapted for interaction with both processors. One processor controls the entire display while allocating a portion of the display screen for the use of the other processor which processor emulates a target processor system, for example, the IBM PC. A user interface is represented on the display screen in the form of metaphoric objects, called icons, with which the user can interact by changing the input focus to a designated object by visually pointed to it via the input means, which thereafter permits manipulation of the designated object or interaction with data input/output relative to the designated object. This input means is also used to initially change the input focus to either the allocated emulating processor screen portion or to the remaining portion of the central processor display screen prior to interaction with the metaphoric objects in a selected screen portion, the change of the input focus causing subsequent user input via the input means to be directed to the selected screen portion until interrupted by a change in focus input to the other of the screen portions by the user via the input means. An icon may be a representation of a virtual object, such as a virtual floppy disk, that is accessible in either the host system world or in the emulating processor world even through the virtual floppy disk may have a filing system alien to the host system world.