公开(公告)号：DE69020753D1

公开(公告)日：1995-08-17

申请号：DE69020753

申请日：1990-02-21

Applicant: IBM

Inventor： LUMELSKY LEON ,  MCCABE DANIEL HELMUT ,  PEEVERS ALAN WESLEY

IPC: H04N9/00 ,  G09G1/28 ,  G09G5/00 ,  G09G5/02 ,  G09G5/14 ,  G09G5/391 ,  H04N9/64 ,  G09G1/16

公开(公告)号：DE69020753T2

公开(公告)日：1996-03-14

申请号：DE69020753

申请日：1990-02-21

Applicant: IBM

Inventor： LUMELSKY LEON ,  MCCABE DANIEL HELMUT ,  PEEVERS ALAN WESLEY

IPC: H04N9/00 ,  G09G1/28 ,  G09G5/00 ,  G09G5/02 ,  G09G5/14 ,  G09G5/391 ,  H04N9/64 ,  G09G1/16

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.