公开(公告)号：EP0723268A3

公开(公告)日：1997-07-02

申请号：EP96300133.4

申请日：1996-01-08

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Furuta, Minoru ,  Sunaga, Toshio

IPC分类号： G11C7/00

CPC分类号： G11C7/1018

摘要： A data transfer system for DRAM operates in a burst transfer mode, wherein the OE line is employed to start the burst transfer mode with change of its potential as a start signal. The burst transfer toggles CAS or RAS to synchronize it with data output as if it were a clock signal. This eliminates the necessity to uniquely provide a clock circuit for the DRAM. In addition, OE maintains the function as a switch for determining whether or not data can be output as in the background art by switching the operation mode from the burst transfer mode. Thus, it maintains high compatibility with the conventional DRAM transfer system.

公开(公告)号：EP0381426A3

公开(公告)日：1992-01-08

申请号：EP90300924.9

申请日：1990-01-30

申请人： International Business Machines Corporation

发明人： Furuta, Minoru ,  Furuya, Manabu

IPC分类号： G06K11/18 ,  G06K11/20 ,  G06F3/033

CPC分类号： G06F3/0383

摘要： The present invention relates to a display device comprising a display surface, a light pen, means (1) for defining a plurality of parallel scan lines extending across the display surface, means (1) for defining a plurality of character boxes located in sequence along each of the scan lines, means (1) for displaying images on the display surface by selectively forming light spots in the character boxes in the scan lines, and means (1) for displaying a light pen detection line of light spots on the display surface for use in detecting the position of the light pen relative to the display surface. According to the invention the display device is characterised in that the light pen detection line of light spots comprises a first set of spots forming a first detection field located on a first scan line in a first set of character boxes (0,1,2), and a second set of spots forming a second detection field located on a second scan line in a second set of character boxes (4,5).

公开(公告)号：EP0723268A2

公开(公告)日：1996-07-24

申请号：EP96300133.4

申请日：1996-01-08

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Furuta, Minoru ,  Sunaga, Toshio

IPC分类号： G11C7/00

CPC分类号： G11C7/1018

摘要： A data transfer system for DRAM operates in a burst transfer mode, wherein the OE line is employed to start the burst transfer mode with change of its potential as a start signal. The burst transfer toggles CAS or RAS to synchronize it with data output as if it were a clock signal. This eliminates the necessity to uniquely provide a clock circuit for the DRAM. In addition, OE maintains the function as a switch for determining whether or not data can be output as in the background art by switching the operation mode from the burst transfer mode. Thus, it maintains high compatibility with the conventional DRAM transfer system.

摘要翻译： 用于DRAM的数据传输系统以突发传送模式工作，其中采用OE线作为起始信号，以其电位变化来启动突发传送模式。 突发传输切换CAS或RAS以将其与数据输出同步，就像它是时钟信号。 这消除了为DRAM独特地提供时钟电路的必要性。 此外，作为用于通过从突发传送模式切换操作模式来确定是否可以如背景技术中的数据输出的OE，保持该功能。 因此，它与常规DRAM传输系统保持高兼容性。

公开(公告)号：EP0381426A2

公开(公告)日：1990-08-08

申请号：EP90300924.9

申请日：1990-01-30

申请人： International Business Machines Corporation

发明人： Furuta, Minoru ,  Furuya, Manabu

IPC分类号： G06K11/18 ,  G06K11/20 ,  G06F3/033

CPC分类号： G06F3/0383

摘要： The present invention relates to a display device comprising a display surface, a light pen, means (1) for defining a plurality of parallel scan lines extending across the display surface, means (1) for defining a plurality of character boxes located in sequence along each of the scan lines, means (1) for displaying images on the display surface by selectively forming light spots in the character boxes in the scan lines, and means (1) for displaying a light pen detection line of light spots on the display surface for use in detecting the position of the light pen relative to the display surface.
According to the invention the display device is characterised in that the light pen detection line of light spots comprises a first set of spots forming a first detection field located on a first scan line in a first set of character boxes (0,1,2), and a second set of spots forming a second detection field located on a second scan line in a second set of character boxes (4,5).

摘要翻译： 显示装置技术领域本发明涉及一种显示装置，包括显示表面，光笔，用于限定跨越显示表面延伸的多条平行扫描线的装置（1），用于定义多个沿着 每个扫描线，用于通过在扫描线中的字符框中选择性地形成光点，在显示表面上显示图像的装置（1），以及用于在显示表面上显示光点的光笔检测线的装置 用于检测光笔相对于显示表面的位置。 根据本发明，显示装置的特征在于，光点的光笔检测线包括第一组点，其形成位于第一组字符框（0,1,2）中的第一扫描线上的第一检测区域， ，以及第二组点，形成位于第二组字符盒（4,5）中的第二扫描线上的第二检测区域。