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JPH0439828B2 - - Google Patents

Info

Publication number
JPH0439828B2
JPH0439828B2 JP59030446A JP3044684A JPH0439828B2 JP H0439828 B2 JPH0439828 B2 JP H0439828B2 JP 59030446 A JP59030446 A JP 59030446A JP 3044684 A JP3044684 A JP 3044684A JP H0439828 B2 JPH0439828 B2 JP H0439828B2
Authority
JP
Japan
Prior art keywords
reference signal
signal
analog video
auxiliary reference
input terminal
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.)
Expired - Lifetime
Application number
JP59030446A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59161973A (ja
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 filed Critical
Publication of JPS59161973A publication Critical patent/JPS59161973A/ja
Publication of JPH0439828B2 publication Critical patent/JPH0439828B2/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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Collating Specific Patterns (AREA)
JP59030446A 1983-02-24 1984-02-22 変換回路 Granted JPS59161973A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300686 1983-02-24
NL8300686A NL8300686A (nl) 1983-02-24 1983-02-24 Inrichting voor het omzetten van een analoog videosignaal in een tweewaardig signaal.

Publications (2)

Publication Number Publication Date
JPS59161973A JPS59161973A (ja) 1984-09-12
JPH0439828B2 true JPH0439828B2 (fr) 1992-06-30

Family

ID=19841468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59030446A Granted JPS59161973A (ja) 1983-02-24 1984-02-22 変換回路

Country Status (6)

Country Link
JP (1) JPS59161973A (fr)
BE (1) BE898990A (fr)
DE (1) DE3403792A1 (fr)
FR (1) FR2541838B1 (fr)
GB (1) GB2135852B (fr)
NL (1) NL8300686A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681258B2 (ja) * 1988-12-05 1994-10-12 三菱電機株式会社 イメージデータの二値化回路
JP2809447B2 (ja) * 1989-01-21 1998-10-08 株式会社リコー 画像処理装置
EP0548571A1 (fr) * 1991-11-25 1993-06-30 Eastman Kodak Company Système et méthode pour l'application d'un seuil adaptatif et bidirectionnel
FR2812985B1 (fr) 2000-08-11 2003-08-22 Atmel Grenoble Sa Circuit de demodulation d'un signal logique transmis par des voies analogiques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE323559C (de) * 1919-03-18 1920-07-29 Oscar Mey Vorrichtung zur willkuerlichen Auswahl der zu kontrollierenden Arbeiter und Angestellten in gewerblichen und kaufmaennischen Betrieben
US3500073A (en) * 1966-09-15 1970-03-10 Phonocopy Inc Analog to binary signal processor
US3566281A (en) * 1968-05-21 1971-02-23 Ibm Electric pulse wave clipping circuitry
CA974607A (en) * 1971-12-13 1975-09-16 Bendix Corporation (The) System for converting modulated signals to squarewave outputs
US3869698A (en) * 1973-11-29 1975-03-04 Mohawk Data Sciences Corp Optical character recognition video amplifier and digitizer
FR2437125A1 (fr) * 1978-09-21 1980-04-18 Cit Alcatel Dispositif de traitement d'un signal d'analyse d'image

Also Published As

Publication number Publication date
GB2135852B (en) 1987-05-07
FR2541838B1 (fr) 1987-10-09
DE3403792A1 (de) 1984-08-30
GB2135852A (en) 1984-09-05
JPS59161973A (ja) 1984-09-12
GB8404411D0 (en) 1984-03-28
NL8300686A (nl) 1984-09-17
BE898990A (fr) 1984-08-22
FR2541838A1 (fr) 1984-08-31

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