or other electronic system in which it is desirable to process compressed document images. The cursor control device157may be a mouse, trackball, stylus, or any other device for manipulating elements displayed on display device155. The keypad158may be a keyboard or other device to allow a user...
cursor motion, may have a higher priority that a system status display. More than two priority levels may be defined. In a preferred embodiment of the invention, each priority level may have associated therewith a “frame rate” at which change events and/or other processing associated with ...