BE746138A - Procede et appareil de modulation d'un faisceau d'affichage de l'information - Google Patents

Procede et appareil de modulation d'un faisceau d'affichage de l'information

Info

Publication number
BE746138A
BE746138A BE746138DA BE746138A BE 746138 A BE746138 A BE 746138A BE 746138D A BE746138D A BE 746138DA BE 746138 A BE746138 A BE 746138A
Authority
BE
Belgium
Prior art keywords
modulating
information display
display beam
information
display
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
L D Emmons
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of BE746138A publication Critical patent/BE746138A/xx

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]
    • 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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transforming Electric Information Into Light Information (AREA)
BE746138D 1969-02-20 1970-02-18 Procede et appareil de modulation d'un faisceau d'affichage de l'information BE746138A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80099069A 1969-02-20 1969-02-20

Publications (1)

Publication Number Publication Date
BE746138A true BE746138A (fr) 1970-07-31

Family

ID=25179904

Family Applications (1)

Application Number Title Priority Date Filing Date
BE746138D BE746138A (fr) 1969-02-20 1970-02-18 Procede et appareil de modulation d'un faisceau d'affichage de l'information

Country Status (5)

Country Link
US (1) US3745408A (enExample)
BE (1) BE746138A (enExample)
DE (1) DE2006631C3 (enExample)
FR (1) FR2035640A5 (enExample)
GB (1) GB1313771A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830967A (en) * 1973-02-05 1974-08-20 Muirhead Inc Apparatus for half tone marking electrostatic paper
US3916224A (en) * 1973-08-02 1975-10-28 Ibm Transistor switching regulator control utilizing charging of bootstrap circuit to provide ramp-up
US7028529B2 (en) * 2003-04-28 2006-04-18 Sonora Medical Systems, Inc. Apparatus and methods for testing acoustic probes and systems
US7787172B2 (en) * 2003-11-01 2010-08-31 Silicon Quest Kabushiki-Kaisha Gamma correction for adjustable light source
WO2009032346A1 (en) * 2007-09-06 2009-03-12 Olympus Corporation Gamma correction for adjustable light source
CN107135593B (zh) * 2017-06-07 2023-12-05 深圳市奥金瑞科技有限公司 智能开关检测和识别电路
US11378997B2 (en) * 2018-10-12 2022-07-05 Ultrahaptics Ip Ltd Variable phase and frequency pulse-width modulation technique
US12411253B1 (en) * 2022-11-14 2025-09-09 Ut-Battelle, Llc Pulse shape discrimination system for high density imaging

Also Published As

Publication number Publication date
FR2035640A5 (enExample) 1970-12-18
US3745408A (en) 1973-07-10
DE2006631C3 (de) 1973-10-04
GB1313771A (en) 1973-04-18
DE2006631A1 (de) 1971-02-04
DE2006631B2 (de) 1973-03-15

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