JPS577683A - Still picture transmitter - Google Patents

Still picture transmitter

Info

Publication number
JPS577683A
JPS577683A JP8161780A JP8161780A JPS577683A JP S577683 A JPS577683 A JP S577683A JP 8161780 A JP8161780 A JP 8161780A JP 8161780 A JP8161780 A JP 8161780A JP S577683 A JPS577683 A JP S577683A
Authority
JP
Japan
Prior art keywords
level
circuit
signal
reception part
converted
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
JP8161780A
Other languages
English (en)
Inventor
Akio Matsuda
Kazumi Yuasa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8161780A priority Critical patent/JPS577683A/ja
Publication of JPS577683A publication Critical patent/JPS577683A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
JP8161780A 1980-06-17 1980-06-17 Still picture transmitter Pending JPS577683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8161780A JPS577683A (en) 1980-06-17 1980-06-17 Still picture transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8161780A JPS577683A (en) 1980-06-17 1980-06-17 Still picture transmitter

Publications (1)

Publication Number Publication Date
JPS577683A true JPS577683A (en) 1982-01-14

Family

ID=13751276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8161780A Pending JPS577683A (en) 1980-06-17 1980-06-17 Still picture transmitter

Country Status (1)

Country Link
JP (1) JPS577683A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231266A (ja) * 1985-08-02 1987-02-10 Canon Inc 静止画送受信装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231266A (ja) * 1985-08-02 1987-02-10 Canon Inc 静止画送受信装置

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