公开(公告)号：JPH08195077A

公开(公告)日：1996-07-30

申请号：JP2219495

申请日：1995-01-17

Applicant: IBM

Inventor： FURUTA MINORU ,  SUNANAGA TOSHIO

IPC: G11C11/401 ,  G11C7/00 ,  G11C7/10 ,  G11C11/407

Abstract: PURPOSE: To make it possible to continue the burst transmission in the same page while altering a column address by controlling the falling timing of OE. CONSTITUTION: When OE falls 110 and CAS continuously falls 112 at a time t10, burst transmission starting conditions are satisfied. A column address Cay2 is latched at the fall 112, an object to be accessed is decided. The data burst transmission is started from the CAS fall 114 of a time t11, fall data Dy2 is latched, and then data Dy3, 0, 1 are latched at the falls 115, 116, 122 of the CAS. The OE fall 120 and CAS fall 122 are combined as a burst transmission initiation start signal. At the fall 122, next column address CAz3 is latched, and 4 data after the data Dz3 is burst transmitted in response to the CAS fall 124 of time t15 up to time t16 to 19. Accordingly, at the burst initiation start, 4-continuous bit data are always read.

公开(公告)号：JPH02202618A

公开(公告)日：1990-08-10

申请号：JP2087389

申请日：1989-02-01

Applicant: IBM JAPAN

Inventor： FURUTA MINORU ,  FURUYA MANABU

IPC: G06F3/041 ,  G06F3/033 ,  G06F3/037 ,  G06F3/038 ,  G06F3/048

Abstract: PURPOSE:To increase the number of characters to be displayed by displaying a detection line in one write pen detecting field on one scanning line and displaying a subsequent detection line in one write pen detecting field on a subsequent scanning line. CONSTITUTION:A column '0' in a display screen displays an initial character box and a column 79 displays an eightyth character box. The write pen detection line shown by double circles in columns '0', '1' and '2' in a first group is displayed on a scanning line L3 and the write pen detection line of columns '4' and '5' in a second group is displayed on the subsequent scanning line such as a scanning line L4. The write pen detection line of columns '7', '8'... in a third group is displayed in the scanning line L3. The following lines are similarly displayed. Thus, the number of the characters which is displayed on a display surface can be increased.