JPS54125917A - Electron zooming system - Google Patents
Electron zooming systemInfo
- Publication number
- JPS54125917A JPS54125917A JP3286378A JP3286378A JPS54125917A JP S54125917 A JPS54125917 A JP S54125917A JP 3286378 A JP3286378 A JP 3286378A JP 3286378 A JP3286378 A JP 3286378A JP S54125917 A JPS54125917 A JP S54125917A
- Authority
- JP
- Japan
- Prior art keywords
- magnification
- amount
- reduction
- clock
- picture
- 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
Abstract
PURPOSE: To simplify the zooming device for the system which magnifying and reducing into an optional size of the color TV picture image through the interpolation operation by obtaining the interpolation distance from the input picture or the line signal and then adding the reducing and magnifying amount in sequence.
CONSTITUTION: The reduction or the magnification ratio is decided by fader 71 for m-units of the input picture or the line signal, and the control amount given from fader 71 undergoes A/D conversion through A/D converter 72 to obtain code K1 or K2 which is then written into RAM73 temporarily. On the other hand, horizontal synchronous signal H is applied to counter 74, and the counting is given with addition of picture element sampling clock fs and clock nfs at the reduction and magnification time respectively. Thus, the value preceding 1-line equivalent output of delay circuit T is added every time counter 74 counts magnification amount K to carry out the operation of interpolation distance li=li-1+K, and the output of full adder 75 is isolated into picture element number αi and decimal part βi with every clock fs, Then the reduction or magnification amount is added in sequence through mixer 79.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3286378A JPS54125917A (en) | 1978-03-24 | 1978-03-24 | Electron zooming system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3286378A JPS54125917A (en) | 1978-03-24 | 1978-03-24 | Electron zooming system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54125917A true JPS54125917A (en) | 1979-09-29 |
Family
ID=12370679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3286378A Pending JPS54125917A (en) | 1978-03-24 | 1978-03-24 | Electron zooming system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54125917A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513725A (en) * | 1980-08-29 | 1985-04-30 | Yamaha Hatsudoki Kabushiki Kaisha | Device for supplying fuel to a pressure carburetor |
JPS6189791A (en) * | 1984-10-08 | 1986-05-07 | Sony Corp | Solid color image pick-up device |
JPS61228784A (en) * | 1985-03-07 | 1986-10-11 | Sony Corp | Video signal processor |
JPS6297476A (en) * | 1985-10-21 | 1987-05-06 | Sony Corp | Signal interpolating circuit |
JPS62154880A (en) * | 1985-12-26 | 1987-07-09 | Sony Corp | Method for interpolating video signal |
JPS6344687A (en) * | 1986-08-12 | 1988-02-25 | 株式会社日立製作所 | Image display device |
-
1978
- 1978-03-24 JP JP3286378A patent/JPS54125917A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513725A (en) * | 1980-08-29 | 1985-04-30 | Yamaha Hatsudoki Kabushiki Kaisha | Device for supplying fuel to a pressure carburetor |
JPS6189791A (en) * | 1984-10-08 | 1986-05-07 | Sony Corp | Solid color image pick-up device |
JPS61228784A (en) * | 1985-03-07 | 1986-10-11 | Sony Corp | Video signal processor |
JPS6297476A (en) * | 1985-10-21 | 1987-05-06 | Sony Corp | Signal interpolating circuit |
JPS62154880A (en) * | 1985-12-26 | 1987-07-09 | Sony Corp | Method for interpolating video signal |
JPS6344687A (en) * | 1986-08-12 | 1988-02-25 | 株式会社日立製作所 | Image display device |
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