JPS5477511A - Band compression system for picture signal - Google Patents
Band compression system for picture signalInfo
- Publication number
- JPS5477511A JPS5477511A JP14470677A JP14470677A JPS5477511A JP S5477511 A JPS5477511 A JP S5477511A JP 14470677 A JP14470677 A JP 14470677A JP 14470677 A JP14470677 A JP 14470677A JP S5477511 A JPS5477511 A JP S5477511A
- Authority
- JP
- Japan
- Prior art keywords
- dpcm
- band compression
- picture signal
- run
- compression system
- 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
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
PURPOSE: To increase the band compression factor through a simple constitution by giving the run-length process in case the same contents is continuous for the DPCM signal.
CONSTITUTION: The signal sent from TV camera 1 undergoes A/D conversion 2 and is stored in memory 3 equivalent to one picture frame. Thus, DPCM process 4 is carried out with every horizontal scanning line. And run-length process 5 is carried out in case the DPCM signals of 0 featuring the highest generating frequency are continuous, and the output is delivered via parallel-series converter circuit 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470677A JPS5477511A (en) | 1977-12-02 | 1977-12-02 | Band compression system for picture signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14470677A JPS5477511A (en) | 1977-12-02 | 1977-12-02 | Band compression system for picture signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5477511A true JPS5477511A (en) | 1979-06-21 |
Family
ID=15368384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14470677A Pending JPS5477511A (en) | 1977-12-02 | 1977-12-02 | Band compression system for picture signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5477511A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59228419A (en) * | 1983-06-09 | 1984-12-21 | Alps Electric Co Ltd | Information compression processing system |
JPS6199419A (en) * | 1984-10-20 | 1986-05-17 | Canon Inc | Predictive encoding system |
JPS62136132A (en) * | 1985-12-10 | 1987-06-19 | Hitachi Ltd | Method and apparatus for modulating digital data |
WO1997002703A1 (en) * | 1995-07-06 | 1997-01-23 | Diginet Systems Pty. Limited | Virtual broadband technology |
-
1977
- 1977-12-02 JP JP14470677A patent/JPS5477511A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59228419A (en) * | 1983-06-09 | 1984-12-21 | Alps Electric Co Ltd | Information compression processing system |
JPS6366086B2 (en) * | 1983-06-09 | 1988-12-19 | Alps Electric Co Ltd | |
JPS6199419A (en) * | 1984-10-20 | 1986-05-17 | Canon Inc | Predictive encoding system |
JPS62136132A (en) * | 1985-12-10 | 1987-06-19 | Hitachi Ltd | Method and apparatus for modulating digital data |
WO1997002703A1 (en) * | 1995-07-06 | 1997-01-23 | Diginet Systems Pty. Limited | Virtual broadband technology |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5492015A (en) | Color television image receiving unit | |
JPS5379421A (en) | Television signal conversion circuit | |
JPS5242324A (en) | Chroma signal processing system | |
JPS54118724A (en) | S/n improvement device for television video signal | |
JPS5477511A (en) | Band compression system for picture signal | |
JPS54114042A (en) | Synchronous signal generating circuit | |
JPS5477510A (en) | Band compression system for picture signal | |
JPS57164687A (en) | Double scanning image receiver | |
JPS5255429A (en) | Color solid pickup unit | |
JPS5520511A (en) | Display unit for picture | |
JPS5377417A (en) | Pal-ntsc signal converter | |
JPS5345926A (en) | Television picture transmission system | |
JPS54153518A (en) | Corrector for time axis error | |
JPS5378727A (en) | Television camera | |
JPS5755670A (en) | Video display device | |
JPS5447513A (en) | Encoding system for television signal | |
JPS5254325A (en) | Picture information processing | |
JPS5367311A (en) | Television video transmitter | |
JPS5514784A (en) | Television picture receiver | |
JPS57160290A (en) | Digital video signal reproducing device | |
JPS548919A (en) | Frequency converting circuit | |
JPS5342661A (en) | Ac-dc converting and encoding circuit | |
JPS5471929A (en) | Video signal level display method | |
JPS55130272A (en) | Deflecting circuit device | |
JPS5388524A (en) | Velocity modulation type contour correcting device |