JPS5478919A - Processing system of received picture in television still picture communication - Google Patents
Processing system of received picture in television still picture communicationInfo
- Publication number
- JPS5478919A JPS5478919A JP14615777A JP14615777A JPS5478919A JP S5478919 A JPS5478919 A JP S5478919A JP 14615777 A JP14615777 A JP 14615777A JP 14615777 A JP14615777 A JP 14615777A JP S5478919 A JPS5478919 A JP S5478919A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- reception
- path
- composite analog
- quantized noise
- 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 improve the inconvenience on visuality based on the quantized noise, by inserting the filter circuit consisting of LPF and switches on the composite analog video signal path at the reception side.
CONSTITUTION: Filter FIL is provided. Other than this, the TV still picture communication system is constituted with the TV camera CAN, coder AD, transmission side still piectue memory MEMS, modulator MOD, demodulator DEM, reception side still picture memory MEMR, compozer DA, and monitor MON, and the operation of them is the same as conventional systems. At the start of reception, the switch SW is connected to the path (a) of LPF.LPF1, making narrow the passing bandwidth of the composite analog signal having much quantized noise. Thus, essential composite analog signal is limited for the band and the finess of profile of the displayed picture is lowered, the discontinuous phenomenon at the tonous change of the displayed picture profile due to quantized noise is mitigated, and picture easy to see can be obtained totally. Further, at the end of reception, the filter is not selected (SW is selected as path d).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14615777A JPS5478919A (en) | 1977-12-07 | 1977-12-07 | Processing system of received picture in television still picture communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14615777A JPS5478919A (en) | 1977-12-07 | 1977-12-07 | Processing system of received picture in television still picture communication |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5478919A true JPS5478919A (en) | 1979-06-23 |
Family
ID=15401413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14615777A Pending JPS5478919A (en) | 1977-12-07 | 1977-12-07 | Processing system of received picture in television still picture communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5478919A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62214788A (en) * | 1986-03-14 | 1987-09-21 | Canon Inc | Picture processing system |
-
1977
- 1977-12-07 JP JP14615777A patent/JPS5478919A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62214788A (en) * | 1986-03-14 | 1987-09-21 | Canon Inc | Picture processing system |
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