KR870005295A - Banking VRAM for Videotex Decode for Computers - Google Patents
Banking VRAM for Videotex Decode for Computers Download PDFInfo
- Publication number
- KR870005295A KR870005295A KR1019850008932A KR850008932A KR870005295A KR 870005295 A KR870005295 A KR 870005295A KR 1019850008932 A KR1019850008932 A KR 1019850008932A KR 850008932 A KR850008932 A KR 850008932A KR 870005295 A KR870005295 A KR 870005295A
- Authority
- KR
- South Korea
- Prior art keywords
- video ram
- banking
- color
- decode
- video
- Prior art date
Links
Landscapes
- Color Television Systems (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명을 나타내는 블럭도,1 is a block diagram showing the present invention,
제2도는 제1도를 구체로 도시하는 회로도,FIG. 2 is a circuit diagram showing the first diagram in a concrete manner;
제3도는 빨강 색상을 인에이블 하기 위한 각부 파형도.3 is a waveform diagram of each part to enable the red color.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 컴퓨터 2 : CRTC1: computer 2: CRTC
23 : 디코드 4 : 비디오 램선택 및 뱅킹회로23: Decode 4: Video RAM Selection and Banking Circuit
5 : 비디오 RAM 회로 6 : 병-직렬 변환쉬프트래지스터5: video RAM circuit 6: bottle-serial conversion shift register
7 : 비디오 제어기 8 : CRT7: video controller 8: CRT
F1-F2: D플립플롭 MUX : 디코드F 1 -F 2 : D flip-flop MUX: Decode
B1-B3: 버퍼 RR1-RR3: 빨강색상을 위한 비디오 램B 1 -B 3 : Buffer RR 1 -RR 3 : Video RAM for Red Color
RG1-RG3: 녹색색상을 위한 비디오 램 RB1-RB3: 푸른색상을 위한 비디오 램RG 1 -RG 3 : Video ram for green color RB 1 -RB 3 : Video ram for blue color
PS1-PS3: 병렬-직렬 쉬프트 레지스터 OR1-OR3: 오아 게이트PS 1 -PS 3 : Parallel-serial shift register OR 1 -OR 3 : OR gate
D0-D7: 데이타 버스 A0-A12: 어드레스 버스D 0 -D 7 : data bus A 0 -A 12 : address bus
BW : 기입신호 SP : 디 플립플롭 클럭BW: Write Signal SP: De-Flip-Flop Clock
MCL : 쉬프트 레지스터 클럭 SCL : 쉬프트 레지스터 S/L 신호MCL: Shift Register Clock SCL: Shift Register S / L Signal
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019850008932A KR870005295A (en) | 1985-11-29 | 1985-11-29 | Banking VRAM for Videotex Decode for Computers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019850008932A KR870005295A (en) | 1985-11-29 | 1985-11-29 | Banking VRAM for Videotex Decode for Computers |
Publications (1)
Publication Number | Publication Date |
---|---|
KR870005295A true KR870005295A (en) | 1987-06-08 |
Family
ID=69468123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850008932A KR870005295A (en) | 1985-11-29 | 1985-11-29 | Banking VRAM for Videotex Decode for Computers |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR870005295A (en) |
-
1985
- 1985-11-29 KR KR1019850008932A patent/KR870005295A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |