BR8006818A - Processo e conjunto para a representacao de uma imagem de semitons - Google Patents

Processo e conjunto para a representacao de uma imagem de semitons

Info

Publication number
BR8006818A
BR8006818A BR8006818A BR8006818A BR8006818A BR 8006818 A BR8006818 A BR 8006818A BR 8006818 A BR8006818 A BR 8006818A BR 8006818 A BR8006818 A BR 8006818A BR 8006818 A BR8006818 A BR 8006818A
Authority
BR
Brazil
Prior art keywords
representation
semitone
image
semitone image
Prior art date
Application number
BR8006818A
Other languages
English (en)
Inventor
J Heinzl
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of BR8006818A publication Critical patent/BR8006818A/pt

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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/034—Details of scanning heads ; Means for illuminating the original for picture information reproduction using ink, e.g. ink-jet heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/205—Ink jet for printing a discrete number of tones
    • B41J2/2054—Ink jet for printing a discrete number of tones by the variation of dot disposition or characteristics, e.g. dot number density, dot shape
    • 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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
BR8006818A 1979-10-24 1980-10-23 Processo e conjunto para a representacao de uma imagem de semitons BR8006818A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2943018A DE2943018C3 (de) 1979-10-24 1979-10-24 Verfahren und Anordnung zum Darstellen eines Halbtonbilds

Publications (1)

Publication Number Publication Date
BR8006818A true BR8006818A (pt) 1981-04-28

Family

ID=6084295

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8006818A BR8006818A (pt) 1979-10-24 1980-10-23 Processo e conjunto para a representacao de uma imagem de semitons

Country Status (6)

Country Link
US (1) US4374388A (pt)
EP (1) EP0027967B1 (pt)
JP (1) JPS5667265A (pt)
AU (1) AU6364280A (pt)
BR (1) BR8006818A (pt)
DE (1) DE2943018C3 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129751A (en) * 1981-02-06 1982-08-11 Fuji Photo Film Co Ltd Arranging method for heads of ink-jet printer
IT1144625B (it) * 1981-08-04 1986-10-29 Olivetti & Co Spa Stampante a punti a getto d inchiostro
GB2121643A (en) * 1982-05-28 1983-12-21 Linotype Paul Ltd Halftone raster display
JPS59101368A (ja) * 1982-12-01 1984-06-11 Canon Inc プリンタ付計算機
US4621273A (en) * 1982-12-16 1986-11-04 Hewlett-Packard Company Print head for printing or vector plotting with a multiplicity of line widths
DD218042A1 (de) * 1983-10-20 1985-01-30 Robotron Bueromasch Verfahren zum erzeugen von halbtonbildern mittels tintenstrahl
DE3437063A1 (de) * 1984-10-09 1986-04-17 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur darstellung eines halbtonbildes unter verwendung eines detektionsangepassten rasters
JPS61110231A (ja) * 1984-11-05 1986-05-28 Sony Tektronix Corp ２定電位型蓄積管用ハ−ドコピ−制御方法
US4575730A (en) * 1984-11-14 1986-03-11 Metromedia, Inc. Ink jet printing randomizing droplet placement apparatus
US4901093A (en) * 1985-11-26 1990-02-13 Dataproducts Corporation Method and apparatus for printing with ink jet chambers utilizing a plurality of orifices
DE3803432A1 (de) * 1988-02-05 1989-08-17 Olympia Aeg Piezoelektrisch betriebener schreibkopf in tintenmosaikschreibeinrichtungen
JPH02261226A (ja) * 1989-03-31 1990-10-24 Mitsubishi Electric Corp 移動電話機
JP3155538B2 (ja) * 1989-05-30 2001-04-09 株式会社リコー レーザの多階調書き込み装置
DE4025793A1 (de) * 1990-08-13 1992-02-20 Siemens Ag Verfahren zum drucken eines halbtonbildes
US5815173A (en) * 1991-01-30 1998-09-29 Canon Kabushiki Kaisha Nozzle structures for bubblejet print devices
ES2116023T3 (es) * 1995-09-08 1998-07-01 Hewlett Packard Co Metodo para hacer funcionar una impresora de chorro de tinta e impresora de chorro de tinta que emplea el metodo.
US5958342A (en) * 1996-05-17 1999-09-28 Incyte Pharmaceuticals, Inc. Jet droplet device
JP3507415B2 (ja) * 2000-07-17 2004-03-15 キヤノン株式会社 記録装置および記録方法
US6659589B2 (en) 2001-07-20 2003-12-09 Hewlett-Packard Development Company, L.P. System and method for producing efficient ink drop overlap filled with a pseudo hexagonal grid pattern
US6779861B2 (en) * 2002-12-16 2004-08-24 Xerox Corporation Enhanced dot resolution for inkjet printing

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516547A (fr) * 1966-03-21 1968-03-08 Rca Corp Système de photocopie électronique
US3604846A (en) * 1969-03-03 1971-09-14 Mead Corp Method and system for reconstruction of half-tone images
DE2233469C2 (de) * 1972-07-07 1974-02-28 Olympia Werke Ag, 2940 Wilhelmshaven Schreibkopf für ein Tintenstrahl-Schreibwerk
US4084259A (en) * 1973-11-30 1978-04-11 The Mead Corporation Apparatus for dot matrix recording
DE2435090C2 (de) * 1974-07-22 1982-06-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Anordnung zum Drucken von Grautonbildern
FR2296897A1 (fr) * 1974-12-30 1976-07-30 Laitram Corp Systeme d'affichage alphanumerique
US4032978A (en) * 1975-01-20 1977-06-28 International Business Machines Corporation Pseudo halftone print generator and method
US3977007A (en) * 1975-06-02 1976-08-24 Teletype Corporation Gray tone generation
US4158847A (en) * 1975-09-09 1979-06-19 Siemens Aktiengesellschaft Piezoelectric operated printer head for ink-operated mosaic printer units
DE2543451C2 (de) * 1975-09-29 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Piezoelektrisch betriebener Schreibkopf für Tintenmosaikschreibeinrichtungen
JPS53100234A (en) * 1977-02-14 1978-09-01 Ricoh Co Ltd Recording system of recording picture images having intermediate tone
US4112469A (en) * 1977-04-21 1978-09-05 The Mead Corporation Jet drop copying apparatus
DE2751326C3 (de) * 1977-11-17 1985-05-09 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zum Aufzeichnen von Schrift- oder Bildinformationen

Also Published As

Publication number Publication date
DE2943018C3 (de) 1982-05-13
DE2943018A1 (de) 1981-04-30
AU6364280A (en) 1981-04-30
JPS5667265A (en) 1981-06-06
US4374388A (en) 1983-02-15
EP0027967B1 (de) 1984-02-01
DE2943018B2 (de) 1981-07-30
EP0027967A1 (de) 1981-05-06

Similar Documents

Publication Publication Date Title
BR8006818A (pt) Processo e conjunto para a representacao de uma imagem de semitons
BR7802527A (pt) Massa copiadora sensivel a radiacao e processo para a producao de imagens em relevo
BR8006490A (pt) Processo de comunicar uma sequencia de palavras de informacao digital e aparelho para realizacao do processo
BR8007981A (pt) Processo de fabricacao de uma gaxeta e gaxeta
BR8003707A (pt) Processo para a fabricacao de um material fotografico
BR6000381U (pt) Processo e dispositivo para raspar o excesso de tinta de uma folha em movimento
BR8000808A (pt) Cabeca sulcadeira e processo para o acionamento de uma cabeca sulcadeira
BR8005018A (pt) Processo para a preparacao de 7-hidroxicumaranas
BR8004841A (pt) Processo e dispositivo para a separacao de aparas de uma mistura de aparas-fibras
BR7901969A (pt) Processo e aparelho para conserto no sangradouro de um conversor
BR7907436A (pt) Processo para formar uma mangueira e mangueira
BR8006948A (pt) Processo para a preparacao de 3-fenoxi-benzaldeidos
BR8004316A (pt) Processo para a preparacao de aldeidos
BR8004278A (pt) Processo para a preparacao de acilureias e composicoes inseticidas
BR7901932A (pt) Mistura reveladora eletrostatografica e processo para formacao de imagem eletrostatografica
BR8003640A (pt) Aparelho e processo para a fabricacao de vidro fundido
BR8003059A (pt) Processo para a preparacao de tiazolilideno-oxo-propionitrilas e composicoes inseticidas
BR8004033A (pt) Material de copias fotopolimerizavel e processo para a producao de imagens em relevo
BR8108753A (pt) Processo e instalacao para a ignicao de uma mistura sinterisada
BR8000626A (pt) Processo para a preparacao de uretanas
BR8006222A (pt) Processo para a preparacao de esteres
BR8207403A (pt) Processo e dispositivo correlato para a fabricacao de pneumaticos
BR8002280A (pt) Processo para a descloracao e o resfriamento do anolito da eletrolise de cloretos alcalinos
BR8002993A (pt) Processo para a preparacao de poliorganossiloxanas poliramificadas
BR7805962A (pt) Membro de formacao de imagem e processo de formacao de imagem