JPH0455879U - - Google Patents
Info
- Publication number
- JPH0455879U JPH0455879U JP9863590U JP9863590U JPH0455879U JP H0455879 U JPH0455879 U JP H0455879U JP 9863590 U JP9863590 U JP 9863590U JP 9863590 U JP9863590 U JP 9863590U JP H0455879 U JPH0455879 U JP H0455879U
- Authority
- JP
- Japan
- Prior art keywords
- shift register
- screen
- control circuit
- display
- character rom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Studio Circuits (AREA)
Description
第１図はこの考案の一実施例による表示用ＩＣ
のブロツク図、第２図はこの考案の他の実施例に
よる表示用ＩＣのブロツク図、第３図は従来技術
によるブロツク図である。
図中１は表示用ＲＡＭ、２は文字ＲＯＭ、３は
シフトレジスタ、４は文字位置制御回路、５は表
示用発振回路、６はＴＶ画面第１図の７はこの発
明の特徴であるシフトレジスタである。なお、図
中、同一符号は同一、又は相当部分を示す。
Figure 1 shows a display IC according to an embodiment of this invention.
2 is a block diagram of a display IC according to another embodiment of this invention, and FIG. 3 is a block diagram of a conventional technique. In the figure, 1 is a display RAM, 2 is a character ROM, 3 is a shift register, 4 is a character position control circuit, 5 is a display oscillation circuit, 6 is a TV screen, and 7 in FIG. 1 is a shift register that is a feature of this invention. It is. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ＲＯＭから表示出力制御回路のシフトレジスタに
ロードする際、上記文字ＲＯＭとシフトレジスタ
間にもう一段のシフトレジスタを有し、あらかじ
めドツト情報をシフトしておいたデータを表示出
力制御回路にロードすることにより、ＴＶ画面に
表示させる文字を横方向に円滑に移動させること
を可能とした表示用ＩＣ。 When loading the dot information of characters to be displayed on the TV screen from the character ROM to the shift register of the display output control circuit, an additional shift register is provided between the character ROM and the shift register to shift the dot information in advance. A display IC that makes it possible to smoothly move characters displayed on a TV screen in the horizontal direction by loading data into the display output control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863590U JPH0455879U (en) | 1990-09-18 | 1990-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9863590U JPH0455879U (en) | 1990-09-18 | 1990-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0455879U true JPH0455879U (en) | 1992-05-13 |
Family
ID=31839954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9863590U Pending JPH0455879U (en) | 1990-09-18 | 1990-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0455879U (en) |
-
1990
- 1990-09-18 JP JP9863590U patent/JPH0455879U/ja active Pending
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