FR2035640A5 - - Google Patents

Info

Publication number
FR2035640A5
FR2035640A5 FR7005920A FR7005920A FR2035640A5 FR 2035640 A5 FR2035640 A5 FR 2035640A5 FR 7005920 A FR7005920 A FR 7005920A FR 7005920 A FR7005920 A FR 7005920A FR 2035640 A5 FR2035640 A5 FR 2035640A5
Authority
FR
France
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
Application number
FR7005920A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ampex Corp
Original Assignee
Ampex Corp
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 Corp filed Critical Ampex Corp
Application granted granted Critical
Publication of FR2035640A5 publication Critical patent/FR2035640A5/fr
Expired 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
    • H04N1/405—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)
  • Transforming Electric Information Into Light Information (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR7005920A 1969-02-20 1970-02-19 Expired FR2035640A5 (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
FR2035640A5 true FR2035640A5 (fr) 1970-12-18

Family

ID=25179904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7005920A Expired FR2035640A5 (fr) 1969-02-20 1970-02-19

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216738A1 (fr) * 1973-02-05 1974-08-30 Muirhead Inc

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (fr) * 2007-09-06 2009-03-12 Olympus Corporation Correction gamma pour source lumineuse réglable
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216738A1 (fr) * 1973-02-05 1974-08-30 Muirhead Inc

Also Published As

Publication number Publication date
DE2006631C3 (de) 1973-10-04
US3745408A (en) 1973-07-10
GB1313771A (en) 1973-04-18
DE2006631A1 (de) 1971-02-04
DE2006631B2 (de) 1973-03-15
BE746138A (fr) 1970-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse