JPS54158116A - Automatic contrast adjusting device - Google Patents

Automatic contrast adjusting device

Info

Publication number
JPS54158116A
JPS54158116A JP6694378A JP6694378A JPS54158116A JP S54158116 A JPS54158116 A JP S54158116A JP 6694378 A JP6694378 A JP 6694378A JP 6694378 A JP6694378 A JP 6694378A JP S54158116 A JPS54158116 A JP S54158116A
Authority
JP
Japan
Prior art keywords
level
original
detection circuit
voltage
minimum
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
JP6694378A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6126744B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Mitsuda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6694378A priority Critical patent/JPS54158116A/ja
Publication of JPS54158116A publication Critical patent/JPS54158116A/ja
Publication of JPS6126744B2 publication Critical patent/JPS6126744B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP6694378A 1978-06-02 1978-06-02 Automatic contrast adjusting device Granted JPS54158116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6694378A JPS54158116A (en) 1978-06-02 1978-06-02 Automatic contrast adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6694378A JPS54158116A (en) 1978-06-02 1978-06-02 Automatic contrast adjusting device

Publications (2)

Publication Number Publication Date
JPS54158116A true JPS54158116A (en) 1979-12-13
JPS6126744B2 JPS6126744B2 (enrdf_load_stackoverflow) 1986-06-21

Family

ID=13330586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6694378A Granted JPS54158116A (en) 1978-06-02 1978-06-02 Automatic contrast adjusting device

Country Status (1)

Country Link
JP (1) JPS54158116A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02300863A (ja) * 1989-05-15 1990-12-13 Nissan Motor Co Ltd 画像処理装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04203024A (ja) * 1990-11-30 1992-07-23 Nippon Steel Corp 基礎盤用板材製円形型枠

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234611A (en) * 1975-09-11 1977-03-16 Nippon Signal Co Ltd:The Communication system and its equipment
JPS52157715U (enrdf_load_stackoverflow) * 1976-05-25 1977-11-30
JPS5330216A (en) * 1976-09-01 1978-03-22 Mitsubishi Electric Corp Dinary signal control circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234611A (en) * 1975-09-11 1977-03-16 Nippon Signal Co Ltd:The Communication system and its equipment
JPS52157715U (enrdf_load_stackoverflow) * 1976-05-25 1977-11-30
JPS5330216A (en) * 1976-09-01 1978-03-22 Mitsubishi Electric Corp Dinary signal control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02300863A (ja) * 1989-05-15 1990-12-13 Nissan Motor Co Ltd 画像処理装置

Also Published As

Publication number Publication date
JPS6126744B2 (enrdf_load_stackoverflow) 1986-06-21

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