JPS6453181A - Video display circuit for radar indicator - Google Patents
Video display circuit for radar indicatorInfo
- Publication number
- JPS6453181A JPS6453181A JP20975187A JP20975187A JPS6453181A JP S6453181 A JPS6453181 A JP S6453181A JP 20975187 A JP20975187 A JP 20975187A JP 20975187 A JP20975187 A JP 20975187A JP S6453181 A JPS6453181 A JP S6453181A
- Authority
- JP
- Japan
- Prior art keywords
- display
- crt
- diameter
- sweep
- time
- 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 obtain a time frame for digital display at a minimum by setting the number of memory cells to a fixed value of CRT diameter required for display, using a memory read clock faster than a write clock, and setting a sweep display range of CRT-diameter for processing. CONSTITUTION:Memory cells per CRT-diameter are made constant and the sampling clock period at the time of writing is made proportional to a display range; when a sweep center is beyond the CRT effective diameter, only a mask area corresponding to the part within the CRT effective diameter is stored and when it is read, a sweep of the area is generated not from a range '0', but directly and the read clock is made faster than the write clock. Consequently, a radar video display time is shortened and the processing time for the display display of a large number of alphanumeric data, etc., can be secured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20975187A JPS6453181A (en) | 1987-08-24 | 1987-08-24 | Video display circuit for radar indicator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20975187A JPS6453181A (en) | 1987-08-24 | 1987-08-24 | Video display circuit for radar indicator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6453181A true JPS6453181A (en) | 1989-03-01 |
Family
ID=16578030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20975187A Pending JPS6453181A (en) | 1987-08-24 | 1987-08-24 | Video display circuit for radar indicator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6453181A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0368886A (en) * | 1989-08-07 | 1991-03-25 | Mitsubishi Electric Corp | Radar scanning converting apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57108775A (en) * | 1980-12-26 | 1982-07-06 | Toshiba Corp | A/n radar display system |
-
1987
- 1987-08-24 JP JP20975187A patent/JPS6453181A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57108775A (en) * | 1980-12-26 | 1982-07-06 | Toshiba Corp | A/n radar display system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0368886A (en) * | 1989-08-07 | 1991-03-25 | Mitsubishi Electric Corp | Radar scanning converting apparatus |
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