JPS4996617A - - Google Patents

Info

Publication number
JPS4996617A
JPS4996617A JP48123515A JP12351573A JPS4996617A JP S4996617 A JPS4996617 A JP S4996617A JP 48123515 A JP48123515 A JP 48123515A JP 12351573 A JP12351573 A JP 12351573A JP S4996617 A JPS4996617 A JP S4996617A
Authority
JP
Japan
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.)
Pending
Application number
JP48123515A
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
Priority claimed from NL7301978A external-priority patent/NL7301978A/xx
Application filed filed Critical
Publication of JPS4996617A publication Critical patent/JPS4996617A/ja
Pending 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)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP48123515A 1972-11-03 1973-11-05 Pending JPS4996617A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7214861 1972-11-03
NL7301978A NL7301978A (ja) 1973-02-13 1973-02-13

Publications (1)

Publication Number Publication Date
JPS4996617A true JPS4996617A (ja) 1974-09-12

Family

ID=26644820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48123515A Pending JPS4996617A (ja) 1972-11-03 1973-11-05

Country Status (5)

Country Link
JP (1) JPS4996617A (ja)
AU (1) AU6202373A (ja)
DE (1) DE2351986A1 (ja)
FR (1) FR2205793A1 (ja)
IT (1) IT999166B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123512A (en) * 1975-04-22 1976-10-28 Rikagaku Kenkyusho Binary picture reading method
JPS5248909A (en) * 1975-10-14 1977-04-19 Hell Rudolf Dr Ing Gmbh White color signal level adjusting system
JPS54169422U (ja) * 1978-05-19 1979-11-30
JPS5596764A (en) * 1979-01-18 1980-07-23 Matsushita Graphic Commun Syst Inc Half tone reproducing circuit
JPS5672580A (en) * 1979-11-17 1981-06-16 Oki Electric Ind Co Ltd Read signal processor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326258A (en) * 1980-01-31 1982-04-20 Ncr Canada Ltd - Ncr Canada Ltee Method and apparatus for reducing the gray scale resolution of a digitized image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932019A (ja) * 1972-07-26 1974-03-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4932019A (ja) * 1972-07-26 1974-03-23

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123512A (en) * 1975-04-22 1976-10-28 Rikagaku Kenkyusho Binary picture reading method
JPS5826229B2 (ja) * 1975-04-22 1983-06-01 理化学研究所 ニチガゾウヨミトリホウホウ
JPS5248909A (en) * 1975-10-14 1977-04-19 Hell Rudolf Dr Ing Gmbh White color signal level adjusting system
JPS59191968A (ja) * 1975-10-14 1984-10-31 ドクトル・インジエニエ−ル・ル−ドルフ・ヘル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 白レベルの調節装置
JPS6229946B2 (ja) * 1975-10-14 1987-06-29 Hell Rudolf Dr Ing Gmbh
JPS639422B2 (ja) * 1975-10-14 1988-02-29 Dokutoru Ingu* Rudorufu Heru Gmbh
JPS54169422U (ja) * 1978-05-19 1979-11-30
JPS5596764A (en) * 1979-01-18 1980-07-23 Matsushita Graphic Commun Syst Inc Half tone reproducing circuit
JPS5672580A (en) * 1979-11-17 1981-06-16 Oki Electric Ind Co Ltd Read signal processor

Also Published As

Publication number Publication date
DE2351986A1 (de) 1974-05-16
FR2205793A1 (ja) 1974-05-31
IT999166B (it) 1976-02-20
AU6202373A (en) 1975-05-01

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