Presagis

Sezweed Systems

Christopher J Hall

As a result of detecting an error, command routing logic for device driver logic is reconfigured so that command processing logic of the device driver is not invoked and to return from commands in a manner indicative of successful completion of command processing.

Error handling scheme for time-critical processing environments

Graphics information resulting from operation of applications is directed to a set of visible windows. A set of graphics contexts is provided having fixed associations with the applications. A set of variable associations is provided between the graphics contexts and the windows, so that varying the windows to which graphics information resulting from operation of the applications is directed is accomplished by varying the associations between the graphics contexts and the windows.

Multi-application graphic display environment

At least one of graphics operation description information or graphics object description information () is included within application logic (). At least one of the graphics operation description information or graphics object description information () is included in the program address space of a graphics driver ().

Providing for application integrity, improved start-up time, and reduced memory utilitization in a safety-critical graphics processing environment

As a result of detecting a device error, calls to device driver logic are redirected to substantially reduce processing time of the driver logic and to return to the caller without providing an indication of the error.

Growing community of inventors

Boston, MA, United States of America

Christopher J Hall