JPS5454523A - Superimposing system for letter and graphic signal - Google Patents
Superimposing system for letter and graphic signalInfo
- Publication number
- JPS5454523A JPS5454523A JP12090177A JP12090177A JPS5454523A JP S5454523 A JPS5454523 A JP S5454523A JP 12090177 A JP12090177 A JP 12090177A JP 12090177 A JP12090177 A JP 12090177A JP S5454523 A JPS5454523 A JP S5454523A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- letter
- superimposing
- graphic
- color
- 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.)
- Granted
Links
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To enable to reproduce the colored letters and graphs on the super screen as the letters and graphs as natural state, by producing the key signal required to pick up the part corresponding to the letter or graphic signal superimposed.
CONSTITUTION: The insertor consists of the key signal generating section 12 producing the key signal from the output signals R, G, B of the color pick up unit 11 and the insertor section 13, the generating section 12 produces the key signal required to pick up letter and graphic signal superimposed among the basic video signal Vi, and the insertor section 13 picks up the part corresponding to the superimposing signal among the signals Vi with the video gate circuit by taking the key signal as the gate signal and the mixing circuit inserts the superimposing signal into the video signal. Further, the superimposing letter and graphic signals are reproduced on the superimposing screen as the letter and graph keeping the luminance, hue and chroma saturation as original color itself for the colored letter (a) and graph (b) by using the color video signal satisfying the color performance
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12090177A JPS5454523A (en) | 1977-10-11 | 1977-10-11 | Superimposing system for letter and graphic signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12090177A JPS5454523A (en) | 1977-10-11 | 1977-10-11 | Superimposing system for letter and graphic signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5454523A true JPS5454523A (en) | 1979-04-28 |
JPS5755355B2 JPS5755355B2 (en) | 1982-11-24 |
Family
ID=14797794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12090177A Granted JPS5454523A (en) | 1977-10-11 | 1977-10-11 | Superimposing system for letter and graphic signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5454523A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562792A (en) * | 1979-06-20 | 1981-01-13 | Nec Corp | Generator for shadow super signal for color |
JPS5983488A (en) * | 1982-11-05 | 1984-05-14 | Sony Corp | Chroma key device |
JPS6210995A (en) * | 1985-07-08 | 1987-01-19 | Nec Corp | Superimposition device |
JPH02168788A (en) * | 1989-10-30 | 1990-06-28 | Canon Inc | Color image processor |
-
1977
- 1977-10-11 JP JP12090177A patent/JPS5454523A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562792A (en) * | 1979-06-20 | 1981-01-13 | Nec Corp | Generator for shadow super signal for color |
JPS5983488A (en) * | 1982-11-05 | 1984-05-14 | Sony Corp | Chroma key device |
JPH0524717B2 (en) * | 1982-11-05 | 1993-04-08 | Sony Corp | |
JPS6210995A (en) * | 1985-07-08 | 1987-01-19 | Nec Corp | Superimposition device |
JPH02168788A (en) * | 1989-10-30 | 1990-06-28 | Canon Inc | Color image processor |
JPH0479196B2 (en) * | 1989-10-30 | 1992-12-15 | Canon Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS5755355B2 (en) | 1982-11-24 |
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