Computer graphics processing and selective visual display system – Computer graphics display memory system – Graphic display memory controller
Reexamination Certificate
2001-12-11
2004-06-22
Bella, Matthew C. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Graphic display memory controller
C345S215000, C345S204000
Reexamination Certificate
active
06753869
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to computer systems, and more particularly to computer systems in which information display commands are interleaved with user commands.
BACKGROUND OF THE INVENTION
Computers are in widespread use in business, industrial, and military applications. In most or all computerized systems, a display of information to the user or users is required. The displays are conventionally in the form of ephemeral patterns termed “screens” on the face of a monitor. Those who make use of such computerized systems are well aware of many of the problems associated with the computer systems currently in use. Among those problems are difficulty of entering information, software menus which present choices which do not include the desired choice, slow response, and various errors and “unresponsiveness” hangups, often requiring rebooting.
Among the problems associated with display of information is that of delay in display of material earlier requested or commanded, with the result that the user may not be certain that a previously entered command has been accepted and recognized by the computer system. This, in turn, may lead to multiple repetitions of the same command. The application of commands while other commands remain unexecuted may, in turn, cause computer errors.
Improved computer systems are desired.
SUMMARY OF THE INVENTION
A method according to an aspect of the invention is for displaying information in a computerized system. The method comprises the steps of (a) applying data, which applied data may include information to be displayed, from a source of data to a message queue, and (b) entering user commands, and applying the user commands to an event queue (display system provider queue) in the order in which they are entered. In response to the applied data from the message queue and the user commands, at least a portion of the data from the message queue is processed to generate processed data, which processed data includes “display” information in a format suited to be processed for display. At least the “display” information in a format suited to be processed for display is stored in a data container, and at least some of the information in the data container is made available in response to a screen refresh command. That information associated with the last one or the oldest one of the screens of data which is made available from the data container is processed and currently displayed. The processing and display step is associated with a time lag. The event queue is examined to determine if a predetermined number, greater than one, of user commands exists in the queue. Periodically, (a) if more than the predetermined number of user commands do not exist in the queue, a further screen update command is issued to the input of the queue, and (b) if more than the predetermined number of user commands exist in the queue, no screen update command is issued to the input of the queue during the current period.
REFERENCES:
patent: 4947346 (1990-08-01), Kamiya
patent: 5760789 (1998-06-01), Inoue
patent: 5913920 (1999-06-01), Adams et al.
patent: 6460058 (2002-10-01), Koppolu et al.
Andres Lillian Katherine
Derzinski John Edmund
Bella Matthew C.
Duane Morris LLP
Lockheed Martin Corporation
Quillen Allen E.
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