JPS5330216A - Dinary signal control circuit - Google Patents

Dinary signal control circuit

Info

Publication number
JPS5330216A
JPS5330216A JP10523076A JP10523076A JPS5330216A JP S5330216 A JPS5330216 A JP S5330216A JP 10523076 A JP10523076 A JP 10523076A JP 10523076 A JP10523076 A JP 10523076A JP S5330216 A JPS5330216 A JP S5330216A
Authority
JP
Japan
Prior art keywords
dinary
control circuit
signal control
level
irespective
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
JP10523076A
Other languages
Japanese (ja)
Other versions
JPS5829674B2 (en
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 JP51105230A priority Critical patent/JPS5829674B2/en
Publication of JPS5330216A publication Critical patent/JPS5330216A/en
Publication of JPS5829674B2 publication Critical patent/JPS5829674B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To secure a reproduction of a good-quality picture image irespective of the background density or contrast of the manuscript, by setting automatically the threshold level of a binary circuit to a level abundant in the white and black changing points.
COPYRIGHT: (C)1978,JPO&Japio
JP51105230A 1976-09-01 1976-09-01 Binary signal control circuit Expired JPS5829674B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51105230A JPS5829674B2 (en) 1976-09-01 1976-09-01 Binary signal control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51105230A JPS5829674B2 (en) 1976-09-01 1976-09-01 Binary signal control circuit

Publications (2)

Publication Number Publication Date
JPS5330216A true JPS5330216A (en) 1978-03-22
JPS5829674B2 JPS5829674B2 (en) 1983-06-24

Family

ID=14401844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51105230A Expired JPS5829674B2 (en) 1976-09-01 1976-09-01 Binary signal control circuit

Country Status (1)

Country Link
JP (1) JPS5829674B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158116A (en) * 1978-06-02 1979-12-13 Mitsubishi Electric Corp Automatic contrast adjusting device
JPS5829271A (en) * 1981-08-17 1983-02-21 Ricoh Co Ltd Automatic slice level selection system
JPS58124368A (en) * 1982-01-20 1983-07-23 Nec Corp Automatic level control circuit
JPS59167772U (en) * 1983-04-27 1984-11-09 日産ディーゼル工業株式会社 Fully hydraulic steering system
JPS6173480A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system
JPS6173481A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system
JPS6173482A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3334385B2 (en) 1994-12-20 2002-10-15 セイコーエプソン株式会社 Image reading apparatus and reading method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158116A (en) * 1978-06-02 1979-12-13 Mitsubishi Electric Corp Automatic contrast adjusting device
JPS6126744B2 (en) * 1978-06-02 1986-06-21 Mitsubishi Electric Corp
JPS5829271A (en) * 1981-08-17 1983-02-21 Ricoh Co Ltd Automatic slice level selection system
JPS58124368A (en) * 1982-01-20 1983-07-23 Nec Corp Automatic level control circuit
JPS59167772U (en) * 1983-04-27 1984-11-09 日産ディーゼル工業株式会社 Fully hydraulic steering system
JPS6173480A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system
JPS6173481A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system
JPS6173482A (en) * 1984-09-19 1986-04-15 Canon Inc Picture processing system
JPH0570975B2 (en) * 1984-09-19 1993-10-06 Canon Kk
JPH0582782B2 (en) * 1984-09-19 1993-11-22 Canon Kk

Also Published As

Publication number Publication date
JPS5829674B2 (en) 1983-06-24

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