公开(公告)号：AT110873T

公开(公告)日：1994-09-15

申请号：AT89106573

申请日：1989-04-13

Applicant: IBM

Inventor： GUPTA SATISH ,  LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: G09G1/02 ,  G06F3/153 ,  G06F12/08 ,  G06F12/10 ,  G09G5/00 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G1/16 ,  G09G1/00

Abstract: A display control means such as a virtual display adapter (110) allows the advanced functions of a display controller to be utilized in a large area of memory in addition to the normal use in display memory (120). This large area of memory includes system memory (130), and efficient access to this large area of memory is permitted for normal system use. The display controller also functions with non-contiguous and non-resident bitmaps. The flexibility of demand-paged virtual memory is utilized for display tasks, as display bitmaps may be written to the large area of memory as well as the display memory.

公开(公告)号：DE69111682D1

公开(公告)日：1995-09-07

申请号：DE69111682

申请日：1991-04-26

Applicant: IBM

Inventor： KOKOSZKA DARYL JOHN ,  LARKY STEVEN PHILIP

IPC: G09G5/00 ,  G06T1/60 ,  G09G5/36 ,  G09G5/39 ,  G11C11/401 ,  G11C11/41 ,  H04N7/26 ,  H04N7/50 ,  G09G1/16 ,  G06T1/00

公开(公告)号：DE68917771D1

公开(公告)日：1994-10-06

申请号：DE68917771

申请日：1989-04-13

Applicant: IBM

Inventor： GUPTA SATISH ,  LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: G09G1/02 ,  G06F3/153 ,  G06F12/08 ,  G06F12/10 ,  G09G5/00 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G1/16 ,  G09G1/00

Abstract: A display control means such as a virtual display adapter (110) allows the advanced functions of a display controller to be utilized in a large area of memory in addition to the normal use in display memory (120). This large area of memory includes system memory (130), and efficient access to this large area of memory is permitted for normal system use. The display controller also functions with non-contiguous and non-resident bitmaps. The flexibility of demand-paged virtual memory is utilized for display tasks, as display bitmaps may be written to the large area of memory as well as the display memory.

公开(公告)号：ZA9108049B

公开(公告)日：1992-07-29

申请号：ZA9108049

申请日：1991-10-08

Applicant: IBM

Inventor： BRASE DEBORAH DIANE ,  DEBORAH DIANE BRASE ,  LARKY STEVEN PHILIP ,  STEVEN PHILIP LARKY ,  CLAIR JOE CHRISTOPHER ST ,  JOE CHRISTOPHER ST CLAIR ,  SIDOLI PAOLO ,  PAOLO SIDOLI

IPC: G06F3/153 ,  G06F3/033 ,  G06F3/048 ,  G06T1/60 ,  G06T11/80 ,  G06T15/30 ,  G09G5/36 ,  G09G

CPC classification number: G06F3/04842 ,  G06T15/30

公开(公告)号：DE69132041D1

公开(公告)日：2000-04-20

申请号：DE69132041

申请日：1991-09-30

Applicant: IBM

Inventor： JOHNSON JR LEE EDWARD ,  KOKOSZKA DARYL JOHN ,  LARKY STEVEN PHILIP ,  SIDOLI PAOLO

IPC: G06F3/153 ,  G06T11/20 ,  G06T15/00 ,  G06T15/80 ,  G06T15/50

公开(公告)号：DE69108442D1

公开(公告)日：1995-05-04

申请号：DE69108442

申请日：1991-04-15

Applicant: IBM

Inventor： LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: H04N1/407 ,  G06T5/00 ,  G09G5/14 ,  G09G5/39 ,  G09G5/393 ,  G09G1/16

公开(公告)号：DE68917771T2

公开(公告)日：1995-03-30

申请号：DE68917771

申请日：1989-04-13

Applicant: IBM

Inventor： GUPTA SATISH ,  LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: G09G1/02 ,  G06F3/153 ,  G06F12/08 ,  G06F12/10 ,  G09G5/00 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G1/16 ,  G09G1/00

Abstract: A display control means such as a virtual display adapter (110) allows the advanced functions of a display controller to be utilized in a large area of memory in addition to the normal use in display memory (120). This large area of memory includes system memory (130), and efficient access to this large area of memory is permitted for normal system use. The display controller also functions with non-contiguous and non-resident bitmaps. The flexibility of demand-paged virtual memory is utilized for display tasks, as display bitmaps may be written to the large area of memory as well as the display memory.

公开(公告)号：DE69111682T2

公开(公告)日：1996-04-18

申请号：DE69111682

申请日：1991-04-26

Applicant: IBM

Inventor： KOKOSZKA DARYL JOHN ,  LARKY STEVEN PHILIP

IPC: G09G5/00 ,  G06T1/60 ,  G09G5/36 ,  G09G5/39 ,  G11C11/401 ,  G11C11/41 ,  H04N7/26 ,  H04N7/50 ,  G09G1/16 ,  G06T1/00

公开(公告)号：DE68915232T2

公开(公告)日：1994-11-10

申请号：DE68915232

申请日：1989-09-02

Applicant: IBM

Inventor： LARKY STEVEN PHILIP ,  LUCAS BRUCE DAVID ,  MCCABE DANIEL HELMUT ,  RODGERS TODD KANNER

IPC: G09G5/00 ,  G06T5/00 ,  G09G3/20 ,  G09G5/02 ,  G09G5/06 ,  H04N1/41 ,  H04N1/64 ,  G09G1/28

Abstract: A color display device which includes dither apparatus for each primary color to be displayed. A dither matrix provides a dither signal output as a function of the position of a pixel on the color display device. An input primary color signal includes an integer signal and a fraction signal. The integer signal is incremented by an incrementer. There is means for providing an output primary color signal which is the incremented signal whenever a predetermined relationship exists between the dither signal and the fraction signal, and which is the integer signal whenever the predetermined relationship does not exist.

公开(公告)号：DE68915232D1

公开(公告)日：1994-06-16

申请号：DE68915232

申请日：1989-09-02

Applicant: IBM

Inventor： LARKY STEVEN PHILIP ,  LUCAS BRUCE DAVID ,  MCCABE DANIEL HELMUT ,  RODGERS TODD KANNER

IPC: G09G5/00 ,  G06T5/00 ,  G09G3/20 ,  G09G5/02 ,  G09G5/06 ,  H04N1/41 ,  H04N1/64 ,  G09G1/28

Abstract: A color display device which includes dither apparatus for each primary color to be displayed. A dither matrix provides a dither signal output as a function of the position of a pixel on the color display device. An input primary color signal includes an integer signal and a fraction signal. The integer signal is incremented by an incrementer. There is means for providing an output primary color signal which is the incremented signal whenever a predetermined relationship exists between the dither signal and the fraction signal, and which is the integer signal whenever the predetermined relationship does not exist.