JPS56132884A - Picture update marker system in static picture transmission - Google Patents
Picture update marker system in static picture transmissionInfo
- Publication number
- JPS56132884A JPS56132884A JP3611280A JP3611280A JPS56132884A JP S56132884 A JPS56132884 A JP S56132884A JP 3611280 A JP3611280 A JP 3611280A JP 3611280 A JP3611280 A JP 3611280A JP S56132884 A JPS56132884 A JP S56132884A
- Authority
- JP
- Japan
- Prior art keywords
- field memory
- address
- picture
- line
- high speed
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To enable to grasp an update state of a picture which is being written in, by generating a line which is writing in at present, from a low speed write address and a high speed read-out address, and mixing it with a television signal which is reading out. CONSTITUTION:In case the field memory 19 is used for write purpose, a low speed line address 21 moves to the field memory 19 as it is, a high speed line address 22 moves to the field memory 20, and the field memory 20 is used exclusively for read porpose A line which is writing at present in the OR circuit 24 is generated by the low speed line address 21 which has moved to the field memory 19, and the high speed line memory address 22 which has moved to the field memory 20, and it is mixed with a television signal which is being read out at present and is being displayed on the monitor 31, by the mixing circuit 27. In this regard, even in case when the field memory 19 and 20 have been reversed, said constitution is all the same.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3611280A JPS56132884A (en) | 1980-03-24 | 1980-03-24 | Picture update marker system in static picture transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3611280A JPS56132884A (en) | 1980-03-24 | 1980-03-24 | Picture update marker system in static picture transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56132884A true JPS56132884A (en) | 1981-10-17 |
Family
ID=12460681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3611280A Pending JPS56132884A (en) | 1980-03-24 | 1980-03-24 | Picture update marker system in static picture transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56132884A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5349907A (en) * | 1976-10-19 | 1978-05-06 | Oki Electric Ind Co Ltd | Narrow-band transmission device |
JPS5433632A (en) * | 1977-08-22 | 1979-03-12 | Hitachi Ltd | Display displaying method |
-
1980
- 1980-03-24 JP JP3611280A patent/JPS56132884A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5349907A (en) * | 1976-10-19 | 1978-05-06 | Oki Electric Ind Co Ltd | Narrow-band transmission device |
JPS5433632A (en) * | 1977-08-22 | 1979-03-12 | Hitachi Ltd | Display displaying method |
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