JPS54141522A - Synthesizer of plurality of pictures of projection type - Google Patents
Synthesizer of plurality of pictures of projection typeInfo
- Publication number
- JPS54141522A JPS54141522A JP4962878A JP4962878A JPS54141522A JP S54141522 A JPS54141522 A JP S54141522A JP 4962878 A JP4962878 A JP 4962878A JP 4962878 A JP4962878 A JP 4962878A JP S54141522 A JPS54141522 A JP S54141522A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- extended
- erasing
- space
- less
- 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
Abstract
PURPOSE: To improve the deficiency of information for extended picture and the lowering in picture quality of the second picture, by providing the means erasing a part of the extended picture, the means erasing the second picture, and the means projecting the second picture to the erased space, in the projection type plurality picture synthesizer.
CONSTITUTION: The video erase signal generator 13 generates the signal erasing the video signal during specific period of field and line taking the synchronizing signal given from the circuit 12 as reference and this is given to the video amplifier 11. The picture displayed on the cathode ray tubes 16, 17, 18 is videoed out on the projective screen with the lenses 19, 20, 21. On the other hand, the second picture is displayed on the cathode ray tube 29, and it is projected on the space of extended picture on the screen with the lens 32. Since the second picture is not made less for the number of scanning lines, no deterioration of picture is present, and the erasing space can be less for the extended picture, then the information deficiency of the extended picture can be less.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53049628A JPS5911306B2 (en) | 1978-04-26 | 1978-04-26 | Projection type multiple image synthesis device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53049628A JPS5911306B2 (en) | 1978-04-26 | 1978-04-26 | Projection type multiple image synthesis device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54141522A true JPS54141522A (en) | 1979-11-02 |
JPS5911306B2 JPS5911306B2 (en) | 1984-03-14 |
Family
ID=12836478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53049628A Expired JPS5911306B2 (en) | 1978-04-26 | 1978-04-26 | Projection type multiple image synthesis device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5911306B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545262A (en) * | 1978-09-26 | 1980-03-29 | Sharp Corp | Projection-type television receiving unit |
JPS5985504A (en) * | 1982-11-09 | 1984-05-17 | Meidensha Electric Mfg Co Ltd | Video method for remote control supervision |
JPS6041888A (en) * | 1983-08-17 | 1985-03-05 | I S S:Kk | Method of apparatus for displaying two or more kind of video or picture simultaneously on the same screen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3113180A (en) * | 1960-09-28 | 1963-12-03 | Philco Corp | Composite image reproducing means |
US3560644A (en) * | 1968-02-29 | 1971-02-02 | Us Navy | Multiple projection television system |
JPS5237712A (en) * | 1975-09-20 | 1977-03-23 | Sony Corp | Picture reproduction equipment |
-
1978
- 1978-04-26 JP JP53049628A patent/JPS5911306B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3113180A (en) * | 1960-09-28 | 1963-12-03 | Philco Corp | Composite image reproducing means |
US3560644A (en) * | 1968-02-29 | 1971-02-02 | Us Navy | Multiple projection television system |
JPS5237712A (en) * | 1975-09-20 | 1977-03-23 | Sony Corp | Picture reproduction equipment |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545262A (en) * | 1978-09-26 | 1980-03-29 | Sharp Corp | Projection-type television receiving unit |
JPS5985504A (en) * | 1982-11-09 | 1984-05-17 | Meidensha Electric Mfg Co Ltd | Video method for remote control supervision |
JPS6041888A (en) * | 1983-08-17 | 1985-03-05 | I S S:Kk | Method of apparatus for displaying two or more kind of video or picture simultaneously on the same screen |
Also Published As
Publication number | Publication date |
---|---|
JPS5911306B2 (en) | 1984-03-14 |
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