JP4271286B2 - パルス幅変調回路 - Google Patents

パルス幅変調回路 Download PDF

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Publication number
JP4271286B2
JP4271286B2 JP32412298A JP32412298A JP4271286B2 JP 4271286 B2 JP4271286 B2 JP 4271286B2 JP 32412298 A JP32412298 A JP 32412298A JP 32412298 A JP32412298 A JP 32412298A JP 4271286 B2 JP4271286 B2 JP 4271286B2
Authority
JP
Japan
Prior art keywords
circuit
data
phase modulation
delay
image
Prior art date
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 - Fee Related
Application number
JP32412298A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11317871A5 (OSRAM
JPH11317871A (ja
Inventor
ロバート・ディー・モリソン
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of JPH11317871A publication Critical patent/JPH11317871A/ja
Publication of JPH11317871A5 publication Critical patent/JPH11317871A5/ja
Application granted granted Critical
Publication of JP4271286B2 publication Critical patent/JP4271286B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
    • G06K15/1219—Detection, control or error compensation of scanning velocity or position, e.g. synchronisation
    • 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)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Laser Beam Printer (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Mechanical Optical Scanning Systems (AREA)
JP32412298A 1997-11-14 1998-11-13 パルス幅変調回路 Expired - Fee Related JP4271286B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/970,816 US5990923A (en) 1997-11-14 1997-11-14 High resolution dynamic pulse width modulation
US970,816 1997-11-14

Publications (3)

Publication Number Publication Date
JPH11317871A JPH11317871A (ja) 1999-11-16
JPH11317871A5 JPH11317871A5 (OSRAM) 2006-01-05
JP4271286B2 true JP4271286B2 (ja) 2009-06-03

Family

ID=25517547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32412298A Expired - Fee Related JP4271286B2 (ja) 1997-11-14 1998-11-13 パルス幅変調回路

Country Status (4)

Country Link
US (1) US5990923A (OSRAM)
EP (1) EP0917097B1 (OSRAM)
JP (1) JP4271286B2 (OSRAM)
DE (1) DE69831379T2 (OSRAM)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362898B1 (en) * 1997-10-31 2002-03-26 In-System Design, Inc. Pulse width position modulator and clock skew synchronizer
US6236427B1 (en) * 1999-04-15 2001-05-22 Hewlett-Packard Company Edge placement device
US6340986B1 (en) 2000-03-24 2002-01-22 Hewlett-Packard Company Method and device for time shifting transitions in an imaging device
US6335751B1 (en) * 2000-03-24 2002-01-01 Hewlett-Packard Co. System and method for rendering an output image onto an image transfer surface using multiple optical scan paths
US6366307B1 (en) * 2000-03-24 2002-04-02 Hewlett-Packard Co. Clock independent pulse width modulation
US6373515B1 (en) 2000-08-09 2002-04-16 Hewlett-Packard Company Variable resolution transition placement device
US6982814B1 (en) 2000-08-23 2006-01-03 Hewlett-Packard Development Company, L.P. Image printing devices with AM/FM half-toning with self-determination of dot size and method of implementing same
US6885228B2 (en) 2002-10-02 2005-04-26 Hewlett-Packard Development Company, L.P. Non-iterative signal synchronization
US6980041B2 (en) * 2002-10-04 2005-12-27 Hewlett-Packard Development Company, L.P. Non-iterative introduction of phase delay into signal without feedback
US7148910B2 (en) * 2003-11-06 2006-12-12 Eastman Kodak Company High-speed pulse width modulation system and method for linear array spatial light modulators
US7592851B2 (en) * 2008-01-29 2009-09-22 International Business Machines Corporation High performance pseudo dynamic pulse controllable multiplexer
TWI532323B (zh) 2013-08-14 2016-05-01 財團法人工業技術研究院 數位脈波寬度產生器及其產生方法
US10658814B2 (en) 2017-10-23 2020-05-19 Microsoft Technology Licensing, Llc Laser diode priming to reduce latency
US10361537B2 (en) 2017-10-23 2019-07-23 Microsoft Technology Licensing, Llc Dynamic supply voltage control circuit for laser diode

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115328A (en) * 1988-04-25 1992-05-19 Minolta Camera Kabushiki Kaisha Beam scan type recording apparatus with electrically F theta correcting function
US4847641A (en) * 1988-08-16 1989-07-11 Hewlett-Packard Company Piece-wise print image enhancement for dot matrix printers
US5034967A (en) * 1988-11-14 1991-07-23 Datapoint Corporation Metastable-free digital synchronizer with low phase error
EP0760578B1 (en) * 1989-10-02 2003-04-02 Canon Kabushiki Kaisha Image forming apparatus and modulating method therein
US5245637A (en) * 1991-12-30 1993-09-14 International Business Machines Corporation Phase and frequency adjustable digital phase lock logic system
US5438353A (en) * 1992-11-02 1995-08-01 Hewlett-Packard Company Clock signal generator for electrophotographic printers
KR0147197B1 (ko) * 1995-05-22 1998-12-01 문정환 다수채널의 펄스폭 변조회로

Also Published As

Publication number Publication date
EP0917097B1 (en) 2005-08-31
DE69831379T2 (de) 2006-08-03
EP0917097A3 (en) 2003-09-10
US5990923A (en) 1999-11-23
EP0917097A2 (en) 1999-05-19
DE69831379D1 (de) 2005-10-06
JPH11317871A (ja) 1999-11-16

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