JPS5478919A - Processing system of received picture in television still picture communication - Google Patents

Processing system of received picture in television still picture communication

Info

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
Application number
JP14615777A
Other languages
Japanese (ja)
Inventor
Kenichi Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP14615777A priority Critical patent/JPS5478919A/en
Publication of JPS5478919A publication Critical patent/JPS5478919A/en
Pending legal-status Critical Current

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
JP14615777A 1977-12-07 1977-12-07 Processing system of received picture in television still picture communication Pending JPS5478919A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62214788A (en) * 1986-03-14 1987-09-21 Canon Inc Picture processing system

Cited By (1)

* Cited by examiner, † Cited by third party
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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