IT1002481B - Apparecchio per la segnatura in semitono di carta elettrostatica - Google Patents

Apparecchio per la segnatura in semitono di carta elettrostatica

Info

Publication number
IT1002481B
IT1002481B IT32464/73A IT3246473A IT1002481B IT 1002481 B IT1002481 B IT 1002481B IT 32464/73 A IT32464/73 A IT 32464/73A IT 3246473 A IT3246473 A IT 3246473A IT 1002481 B IT1002481 B IT 1002481B
Authority
IT
Italy
Prior art keywords
halftone
signing
electrostatic paper
electrostatic
paper
Prior art date
Application number
IT32464/73A
Other languages
English (en)
Italian (it)
Original Assignee
Muirhead Inc
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 Muirhead Inc filed Critical Muirhead Inc
Application granted granted Critical
Publication of IT1002481B publication Critical patent/IT1002481B/it

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
    • H04N1/405—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
    • H04N1/4056—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 the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Image Signal Circuits (AREA)
IT32464/73A 1973-02-05 1973-12-31 Apparecchio per la segnatura in semitono di carta elettrostatica IT1002481B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00329649A US3830967A (en) 1973-02-05 1973-02-05 Apparatus for half tone marking electrostatic paper

Publications (1)

Publication Number Publication Date
IT1002481B true IT1002481B (it) 1976-05-20

Family

ID=23286389

Family Applications (1)

Application Number Title Priority Date Filing Date
IT32464/73A IT1002481B (it) 1973-02-05 1973-12-31 Apparecchio per la segnatura in semitono di carta elettrostatica

Country Status (7)

Country Link
US (1) US3830967A (enExample)
CA (1) CA998164A (enExample)
DE (1) DE2401943A1 (enExample)
FR (1) FR2216738B1 (enExample)
GB (1) GB1447807A (enExample)
IT (1) IT1002481B (enExample)
SE (1) SE400008B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014030A (en) * 1976-02-23 1977-03-22 Xerox Corporation Half-tone imaging with flying spot scanner system
JPS5537092A (en) * 1978-09-05 1980-03-14 Ibm Mode switch for setting threshold value
US4276569A (en) * 1979-04-20 1981-06-30 Exxon Research & Engineering Co. Method and apparatus for producing a facsimile gray scale
JPS57160264A (en) * 1981-03-30 1982-10-02 Canon Inc Recorder of half tone picture
FR2596226B1 (fr) * 1986-03-19 1988-12-02 Vignon Bernard Procede de reproduction d'une image a partir de la numerisation de cette image
JPH02126771A (ja) * 1988-11-07 1990-05-15 Aisin Seiki Co Ltd 画像情報の２値化方法および装置
DE69030252T2 (de) * 1990-01-04 1997-09-04 Eastman Kodak Co Anschlagfreier drucker und grauwertaufzeichnungsverfahren
JPH05300346A (ja) * 1992-04-20 1993-11-12 Konica Corp 画像形成装置
US7553152B2 (en) * 2005-06-23 2009-06-30 Honeywell International Inc. Flame detector trapezoidal excitation generator output control circuit and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413412A (en) * 1964-12-30 1968-11-26 Xerox Corp Pulse width discriminator circuit for eliminating noise pulses below a predeterminedminimum width
FR1457309A (fr) * 1965-05-13 1966-01-24 Colos Soc Procédé et dispositif électroniques de reproduction des demi-teintes sur électrostencil
US3469028A (en) * 1965-07-05 1969-09-23 Tokyo Shibaura Electric Co Electrode control systems of a multineedle electrode type electrostatic recording device
US3419676A (en) * 1965-07-20 1968-12-31 Stanford Research Inst Line scan printer
DE1487762A1 (de) * 1965-12-30 1969-01-30 Victor Company Of Japan Einrichtung zum magnetischen Aufzeichnen und Wiedergeben eines Bildsignals
US3614307A (en) * 1967-10-16 1971-10-19 Matsushita Electric Industrial Co Ltd Discharge lamp modulation system
US3745408A (en) * 1969-02-20 1973-07-10 Ampex Intelligence transducing beam modulation method and apparatus
US3631509A (en) * 1969-07-02 1971-12-28 Varian Associates High-speed coincident pulse electrographic printer with gray scale printing capability

Also Published As

Publication number Publication date
SE400008B (sv) 1978-03-06
FR2216738B1 (enExample) 1977-06-10
US3830967A (en) 1974-08-20
GB1447807A (en) 1976-09-02
DE2401943A1 (de) 1974-08-08
FR2216738A1 (enExample) 1974-08-30
CA998164A (en) 1976-10-05

Similar Documents

Publication Publication Date Title
BR7306573D0 (pt) Precipitadores eletrostaticos umidos
IT1006705B (it) Dispositivo di stampa elettrosta tica
IT1022510B (it) Dispositivo per disporre in modo incrociato fasci rettangolari di carta o simile
IT1069057B (it) Precipitatore elettrostatico
IT1035878B (it) Perfezionamento nei dispositivi per segare rotoli di cartaad esempio carta igienica
IT1004808B (it) Dispositivo per la copiatura di originali fogliformi
IT1035245B (it) Sistema per il trattament per il trattamento di fi bre per carta
IT1024366B (it) Agenti di collagio per carta e procedimento per proturli
IT1014975B (it) Apparecchio vibratore
IT1023264B (it) Procedimento per la collatura in superficie di carta
AR201394A1 (es) Aparato limpiador de balasto
IT1007244B (it) Perforatore particolarmente per carta
IT991867B (it) Procedimento ed apparecchio per la giunzione di rotoli di carta
IT1002481B (it) Apparecchio per la segnatura in semitono di carta elettrostatica
BR7403927D0 (pt) Aparelho de fotocopia
IT1023050B (it) Perfezionamento nei punzonatori per elocchi di carta e simili
IT1024458B (it) Carta sintetica perfezionata
IT1004354B (it) Cassa d afflusso perfezionata per macchine per la fabbricazione di carta
IT1031109B (it) Alimentatore di carta inclinato
IT1046101B (it) Miscela e metodo per l incollatura di carta
IT998919B (it) Dispositivo per rivelazione di spessori di fogli di carta
IT1015134B (it) Carta sintetica patinata adatta per stampa offset
IT1070928B (it) Tele per la fabbricazione di carta
AR205713A1 (es) Maquina copiadora electrostatica
IT1015917B (it) Mezzi di collaggio per carta