JPS5556786A - Still picture transmission device - Google Patents

Still picture transmission device

Info

Publication number
JPS5556786A
JPS5556786A JP13004578A JP13004578A JPS5556786A JP S5556786 A JPS5556786 A JP S5556786A JP 13004578 A JP13004578 A JP 13004578A JP 13004578 A JP13004578 A JP 13004578A JP S5556786 A JPS5556786 A JP S5556786A
Authority
JP
Japan
Prior art keywords
picture
memory
transmission
reception
polarity
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.)
Granted
Application number
JP13004578A
Other languages
Japanese (ja)
Other versions
JPS6214156B2 (en
Inventor
Masaru Hirono
Kenji Morita
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP13004578A priority Critical patent/JPS5556786A/en
Publication of JPS5556786A publication Critical patent/JPS5556786A/en
Publication of JPS6214156B2 publication Critical patent/JPS6214156B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To secure a decision for the trouble of the transmission or reception picture memory based on the error emerging on the monitor by giving the opposite polarities to the picture signals which are memorized in the transmission and reception picture memories.
CONSTITUTION: The picture signal obtained through camera 1 is memorized in transmission picture memory 3 after conversion at the A/D converter. The signal reproduced from memory 3 is inverted for its polarity through 1st polarity inverter 8 and then transmitted by transmission circuit 4 to be memorized in reception picture memory 5. The signal reproduced from memory 5 is converted at D/A converter 6 after inversion received by 2nd polarity inverter 9 to be displayed on monitor 7. If the picture signals are changed into the opposite polarity to each other in advance when recorded in memories 3 and 5, the picture reproduced from the faulty picture memory is displayed in the opposite polarity when reproduced. As a result, whether the trouble belongs to the reception or transmission picture memory can be decided easily.
COPYRIGHT: (C)1980,JPO&Japio
JP13004578A 1978-10-24 1978-10-24 Still picture transmission device Granted JPS5556786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13004578A JPS5556786A (en) 1978-10-24 1978-10-24 Still picture transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13004578A JPS5556786A (en) 1978-10-24 1978-10-24 Still picture transmission device

Publications (2)

Publication Number Publication Date
JPS5556786A true JPS5556786A (en) 1980-04-25
JPS6214156B2 JPS6214156B2 (en) 1987-03-31

Family

ID=15024748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13004578A Granted JPS5556786A (en) 1978-10-24 1978-10-24 Still picture transmission device

Country Status (1)

Country Link
JP (1) JPS5556786A (en)

Also Published As

Publication number Publication date
JPS6214156B2 (en) 1987-03-31

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