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

  • Facsimile Image Signal Circuits (AREA)
  • Image Input (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

Similar Documents

Publication Publication Date Title
JPS55142254A (en) Inspecting method for pattern of printed wiring board
JPS57150277A (en) Image signal processing circuit
JPS54158116A (en) Automatic contrast adjusting device
JPS52122038A (en) Fixed noise elimination of solid image sensor
JPS5416918A (en) Background density compensating circuit
JPS543418A (en) Picture reading device
JPS5513539A (en) Orignal reader
JPS575187A (en) Recorder
JPS5312218A (en) Automatic detection range setting circuit
JPS55100788A (en) Defect inspection unit
JPS5247752A (en) Device for reading the maximum and minimum values of peak values of an alog signals
JPS5422889A (en) Paper detecting system
JPS5519781A (en) X ray photographying timer
JPS55155254A (en) Pulse peak detecting circuit
JPS5441650A (en) Level comparison circuit
JPS54119257A (en) Laser recorder
JPS5611577A (en) Reader for inking line or the like
JPS5669970A (en) Read system of facsimile equipment
JPS53137629A (en) Check circuit for paper running
JPS5315711A (en) Picture signal processing circuit
JPS5636204A (en) Noise erasing unit
JPS561303A (en) Method and device for detecting position
JPS5423427A (en) Beam index television picture receiver
JPS56112180A (en) Multitone wedge reading out device
JPS5590189A (en) Defect detector