JPS5492115A - Picture compressing system - Google Patents
Picture compressing systemInfo
- Publication number
- JPS5492115A JPS5492115A JP15947377A JP15947377A JPS5492115A JP S5492115 A JPS5492115 A JP S5492115A JP 15947377 A JP15947377 A JP 15947377A JP 15947377 A JP15947377 A JP 15947377A JP S5492115 A JPS5492115 A JP S5492115A
- Authority
- JP
- Japan
- Prior art keywords
- unit information
- circuit
- information
- rate
- video
- 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 reduce the memory capacity and transfering rate and to compress pectures that can be restored to the original picture at the rate of 1 : 1 by comparing with each preceeding information and memorizing only the unit information having different portions.
CONSTITUTION: The picture compression circuit "crams" the video from photoelectric conversion device 1 with a sample circuit and completely "restore" the video to the rate of 1 : 1. It consists of controller 2, AND circuits 3 and 7, buffer register BR4 and 6, EOR circuit group 8, address counter 9 and 12, and memory units 10 and 11. When for instance the unit information that has been input into BR6 is the first unit information of the second line, exclusive OR 8a is processed for the first unit information of BR5 information in circuit group 8 and, furthermore, the result is processed by "OR" circuit 8. In this case, if the result shows that both unit information consist of completely same bit structures, "0" is output and if they are different, "1" is output. The controller 2 counts up address counter 12.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15947377A JPS5492115A (en) | 1977-12-29 | 1977-12-29 | Picture compressing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15947377A JPS5492115A (en) | 1977-12-29 | 1977-12-29 | Picture compressing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5492115A true JPS5492115A (en) | 1979-07-21 |
Family
ID=15694530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15947377A Pending JPS5492115A (en) | 1977-12-29 | 1977-12-29 | Picture compressing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5492115A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046424A (en) * | 1973-08-31 | 1975-04-25 |
-
1977
- 1977-12-29 JP JP15947377A patent/JPS5492115A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046424A (en) * | 1973-08-31 | 1975-04-25 |
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