JPS58146179A - フアクシミリ信号二値化回路 - Google Patents

フアクシミリ信号二値化回路

Info

Publication number
JPS58146179A
JPS58146179A JP57028333A JP2833382A JPS58146179A JP S58146179 A JPS58146179 A JP S58146179A JP 57028333 A JP57028333 A JP 57028333A JP 2833382 A JP2833382 A JP 2833382A JP S58146179 A JPS58146179 A JP S58146179A
Authority
JP
Japan
Prior art keywords
signal
facsimile signal
level
white
black
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
JP57028333A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0153542B2 (enExample
Inventor
Masahisa Kobayashi
正久 小林
Hiroshi Yokoyama
横山　弘士
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 JP57028333A priority Critical patent/JPS58146179A/ja
Publication of JPS58146179A publication Critical patent/JPS58146179A/ja
Publication of JPH0153542B2 publication Critical patent/JPH0153542B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP57028333A 1982-02-24 1982-02-24 フアクシミリ信号二値化回路 Granted JPS58146179A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57028333A JPS58146179A (ja) 1982-02-24 1982-02-24 フアクシミリ信号二値化回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57028333A JPS58146179A (ja) 1982-02-24 1982-02-24 フアクシミリ信号二値化回路

Publications (2)

Publication Number Publication Date
JPS58146179A true JPS58146179A (ja) 1983-08-31
JPH0153542B2 JPH0153542B2 (enExample) 1989-11-14

Family

ID=12245677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57028333A Granted JPS58146179A (ja) 1982-02-24 1982-02-24 フアクシミリ信号二値化回路

Country Status (1)

Country Link
JP (1) JPS58146179A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01276878A (ja) * 1988-04-27 1989-11-07 Ricoh Elemex Corp 画像読取装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4875132A (enExample) * 1972-01-10 1973-10-09
JPS4975010A (enExample) * 1972-10-19 1974-07-19
JPS5210613A (en) * 1975-06-23 1977-01-27 Hitachi Denshi Ltd Two-value conversion circuit of image signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4875132A (enExample) * 1972-01-10 1973-10-09
JPS4975010A (enExample) * 1972-10-19 1974-07-19
JPS5210613A (en) * 1975-06-23 1977-01-27 Hitachi Denshi Ltd Two-value conversion circuit of image signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01276878A (ja) * 1988-04-27 1989-11-07 Ricoh Elemex Corp 画像読取装置

Also Published As

Publication number Publication date
JPH0153542B2 (enExample) 1989-11-14

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