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1. 发明授权

EP0069517B1 Character display apparatus 失效
标题翻译：字符显示设备
公开(公告)号：EP0069517B1
公开(公告)日：1987-05-06
申请号：EP82303342.8
申请日：1982-06-25
申请人： DATA GENERAL CORPORATION
发明人： Hunt, Glenn E. , Lozano, Gerald L. , Alexander, Michael C. , Manktelow, Gerald O.
IPC分类号： G09G1/16
CPC分类号： G09G5/26

2. 发明公开

EP0069517A3 Character display apparatus 失效
标题翻译：字符显示设备
公开(公告)号：EP0069517A3
公开(公告)日：1984-08-01
申请号：EP82303342
申请日：1982-06-25
申请人： DATA GENERAL CORPORATION
发明人： Hunt, Glenn E. , Lozano, Gerald L. , Alexander, Michael C. , Manktelow, Gerald O.
IPC分类号： G09G01/16
CPC分类号： G09G5/26
摘要： Rows of characters are displayed on a raster scan CRT by the dot matrix technique. The dot matrices are determined by a DOT CLOCK signal and, in order to allow different size characters to be displayed in the same frame, dot frequency signals are derived from a master clock 501 by division by two (flip-flop 504) and division by three (flip-flops 502, 503) respectively. A signal SC135 which can change state at the beginning of the first line of each row selects between the two frequencies via gates 507 and 508. Two signals (PIPE CLOCK and PIPE ENABLE) are derived from the selected DOT CLOCK by counters 510 and 511 which divide by 10 or 9 as selected by a signal SEL 135 selecting different character field widths.

3. 发明公开

EP0069517A2 Character display apparatus 失效
标题翻译： Zeichenanzeigeeinrichtung。
公开(公告)号：EP0069517A2
公开(公告)日：1983-01-12
申请号：EP82303342.8
申请日：1982-06-25
申请人： DATA GENERAL CORPORATION
发明人： Hunt, Glenn E. , Lozano, Gerald L. , Alexander, Michael C. , Manktelow, Gerald O.
IPC分类号： G09G1/16
CPC分类号： G09G5/26
摘要： Rows of characters are displayed on a raster scan CRT by the dot matrix technique. The dot matrices are determined by a DOT CLOCK signal and, in order to allow different size characters to be displayed in the same frame, dot frequency signals are derived from a master clock 501 by division by two (flip-flop 504) and division by three (flip-flops 502, 503) respectively. A signal SC135 which can change state at the beginning of the first line of each row selects between the two frequencies via gates 507 and 508. Two signals (PIPE CLOCK and PIPE ENABLE) are derived from the selected DOT CLOCK by counters 510 and 511 which divide by 10 or 9 as selected by a signal SEL 135 selecting different character field widths.
摘要翻译：字符行通过点阵技术显示在光栅扫描CRT上。点阵由DOT CLOCK信号确定，为了允许在同一帧中显示不同大小的字符，点频信号通过除以2（触发器504）从主时钟501导出并被除以三个（触发器502,503）。可以改变状态的信号SC135可以通过门507和508在两个频率之间进行选择。两个信号（PIPE CLOCK和PIPE ENABLE）通过计数器510和511从所选择的DOT时钟导出，通过选择不同字符字段宽度的信号SEL 135选择10或9。

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