JPS63389U

JPS63389U -

Info

Publication number: JPS63389U
Application number: JP9173986U
Authority: JP
Priority date: 1986-06-16
Filing date: 1986-06-16
Publication date: 1988-01-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すブロツク図、
第２図は同実施例装置のセレクタの内部構成例を
示す論理回路図、第３図はカーソルメモリの記憶
内容の一例を示す図、第４図はセレクト信号メモ
リの記憶内容の一例を示す図、第５図および第６
図は夫々同実施例装置による表示画面例を示す図
、第７図および第８図は夫々従来装置の構成例を
示すブロツク図である。１…ＣＲＴコントローラ、２…ビデオメモリ、
３，１０…カーソルメモリ、４，５，３０，３１
…シフトレジスタ、６…論理和回路、７…ＣＲＴ
、８…排他的論理和回路、２０…セレクト信号メ
モリ、４０…セレクタ。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a logic circuit diagram showing an example of the internal configuration of the selector of the same embodiment device, FIG. 3 is a diagram showing an example of the storage contents of the cursor memory, and FIG. 4 is a diagram showing an example of the storage contents of the select signal memory. , Figures 5 and 6
The figures each show an example of a display screen of the device of the same embodiment, and FIGS. 7 and 8 are block diagrams each showing an example of the configuration of the conventional device. 1...CRT controller, 2...video memory,
3, 10...Cursor memory, 4, 5, 30, 31
...Shift register, 6...OR circuit, 7...CRT
, 8... exclusive OR circuit, 20... select signal memory, 40... selector.

Claims

[Claims for Utility Model Registration] A first memory that stores image data to be displayed on the screen of a display device corresponding to the pixel arrangement on the display screen, and cursor data to be displayed on the same screen corresponding to the shape thereof. a second memory for storing the image data and the cursor data; a third memory for storing a switching signal for switching and outputting the image data and the cursor data in correspondence with the pixel arrangement on the display screen; a selector means for switching between image data sequentially output from the first memory and cursor data sequentially output from the second memory and outputting the same to a display device according to a sequentially output switching signal; The third memory includes a cursor display control that stores the switching signal so that a memory area corresponding to the cursor data is included in an area that stores a signal for selecting cursor data among the switching signals. Device.