-
公开(公告)号：DE3852045D1
公开(公告)日：1994-12-15
申请号：DE3852045
申请日：1988-01-26
Applicant: IBM
-
-
公开(公告)号：DE3889136D1
公开(公告)日：1994-05-26
申请号：DE3889136
申请日：1988-01-26
Applicant: IBM
Inventor： GUPTA SATISH , LUMELSKY LEON , MANSFIELD ROBERT LOCKWOOD , ROMERO HECTOR GERARDO , SEGRE MARC , SPENCER ALEXANDER KOOS , ST CLAIR JOE CHRISTOPHER , WAGONER JAMES DONALD
Abstract: As the speed and capacity of graphics workstations and personal computers including graphics adapters increases, a display adapter which can be used either in such a high capacity stand alone graphics workstation or in conjunction with a large main frame host computer includes a first processor for managing adapter resources and controlling coordinate transformations; a system storage for storing instructions and data representing information to be displayed; a first-in, first-out input buffer for allowing asynchronous and overlapped communication between the graphics system and a host computer;a second processor for drawing vectors and manipulating areas to be displayed on the monitor;a frame buffer connected to the second processor for storing a bit map of data to be displayed; a colour palette connected to outputs of the frame buffer for providing appropriate colour signals to the monitor; and a hardware cursor circuit for controlling display of a cursor on the monitor.
-
-
-
Search Results
14
records
(took 0.018 seconds)
