DE69024025D1 - Verfahren und Vorrichtung zur Druckbildverbesserung. - Google Patents
Verfahren und Vorrichtung zur Druckbildverbesserung.Info
- Publication number
- DE69024025D1 DE69024025D1 DE69024025T DE69024025T DE69024025D1 DE 69024025 D1 DE69024025 D1 DE 69024025D1 DE 69024025 T DE69024025 T DE 69024025T DE 69024025 T DE69024025 T DE 69024025T DE 69024025 D1 DE69024025 D1 DE 69024025D1
- Authority
- DE
- Germany
- Prior art keywords
- improving
- printed image
- printed
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06K15/128—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 generating or processing printable items, e.g. characters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/427,077 US4933689A (en) | 1989-10-25 | 1989-10-25 | Method and apparatus for print image enhancement |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69024025D1 true DE69024025D1 (de) | 1996-01-18 |
DE69024025T2 DE69024025T2 (de) | 1996-04-25 |
Family
ID=23693402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69024025T Expired - Fee Related DE69024025T2 (de) | 1989-10-25 | 1990-10-15 | Verfahren und Vorrichtung zur Druckbildverbesserung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4933689A (de) |
EP (1) | EP0425152B1 (de) |
JP (1) | JPH03173657A (de) |
DE (1) | DE69024025T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7382929B2 (en) * | 1989-05-22 | 2008-06-03 | Pixel Instruments Corporation | Spatial scan replication circuit |
US5134495A (en) * | 1990-11-07 | 1992-07-28 | Dp-Tek, Inc. | Resolution transforming raster-based imaging system |
US5193008A (en) * | 1990-11-07 | 1993-03-09 | Dp-Tek, Inc. | Interleaving vertical pixels in raster-based laser printers |
EP0511368B1 (de) * | 1990-11-21 | 1995-05-10 | Polaroid Corporation | Optisches drucksystem mit diskontinuerlichem druckmedium |
EP0500375B1 (de) * | 1991-02-22 | 1998-07-08 | Canon Kabushiki Kaisha | System zur Bildbearbeitung |
EP0506483B1 (de) * | 1991-03-29 | 1999-02-17 | Canon Kabushiki Kaisha | Anordnung zur Registrierung von Informationen und Verfahren zur Bildregistrierung |
JP2871195B2 (ja) * | 1991-07-11 | 1999-03-17 | 京セラ株式会社 | プリンタにおける画像平滑化処理装置 |
US5392061A (en) * | 1993-01-25 | 1995-02-21 | Hewlett-Packard Company | Pixel resolution enhancement employing encoded dot size control |
US5581292A (en) * | 1993-09-10 | 1996-12-03 | Xerox Corporation | Method and apparatus for enhancing charged area developed regions in a tri-level printing system |
US5479175A (en) * | 1993-09-10 | 1995-12-26 | Xerox Corporation | Method and apparatus for enhancing discharged area developed regions in a tri-level pringing system |
US5504462A (en) * | 1993-09-10 | 1996-04-02 | Xerox Corporation | Apparatus for enhancing pixel addressability in a pulse width and position modulated system |
JP3332609B2 (ja) * | 1993-10-28 | 2002-10-07 | キヤノン株式会社 | 画像出力方法および装置 |
US5696845A (en) * | 1993-12-17 | 1997-12-09 | Xerox Corporation | Method for design and implementation of an image resolution enhancement system that employs statistically generated look-up tables |
US5387985A (en) * | 1993-12-17 | 1995-02-07 | Xerox Corporation | Non-integer image resolution conversion using statistically generated look-up tables |
US5724455A (en) * | 1993-12-17 | 1998-03-03 | Xerox Corporation | Automated template design method for print enhancement |
US5579445A (en) * | 1993-12-17 | 1996-11-26 | Xerox Corporation | Image resolution conversion method that employs statistically generated multiple morphological filters |
US5359423A (en) * | 1993-12-17 | 1994-10-25 | Xerox Corporation | Method for statistical generation of density preserving templates for print enhancement |
US5539866A (en) * | 1994-05-11 | 1996-07-23 | Xerox Corporation | Method and apparatus for accurately rendering half-bitted image pixels |
US5729270A (en) * | 1994-07-27 | 1998-03-17 | Lexmark International, Inc. | Toner conservation by pel modulation with operator control |
US5959656A (en) * | 1995-05-15 | 1999-09-28 | Korea Electronics Technology Institute | Method and apparatus for enhancing laser printer resolution by using a laser beam modulation technique |
US5758034A (en) * | 1996-09-26 | 1998-05-26 | Xerox Corporation | Video path architecture including logic filters for resolution conversion of digital images |
US5862305A (en) * | 1996-09-26 | 1999-01-19 | Xerox Corporation | Logic filters for resolution conversion of digital images |
US6438273B1 (en) | 1998-12-23 | 2002-08-20 | Xerox Corporation | Method and apparatus for using rotatable templates within look-up tables to enhance image reproduction |
US6343159B1 (en) | 1998-12-23 | 2002-01-29 | Xerox Corporation | Method and apparatus for modeling and reconstruction of halftoned images |
US6356654B1 (en) | 1998-12-23 | 2002-03-12 | Xerox Corporation | Systems and methods for template matching of multicolored images |
US6363177B1 (en) | 1998-12-30 | 2002-03-26 | Xerox Corporation | Systems and methods for rotating high addressability images |
US6301397B1 (en) | 1998-12-30 | 2001-10-09 | Xerox Corporation | Systems and methods for rotating high addressability images |
US8585956B1 (en) | 2009-10-23 | 2013-11-19 | Therma-Tru, Inc. | Systems and methods for laser marking work pieces |
CN110398284B (zh) * | 2019-07-19 | 2021-05-18 | 天津大学 | 一种新型弹性波超材料结构 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5875192A (ja) * | 1981-10-29 | 1983-05-06 | 日本電信電話株式会社 | 表示装置のスム−ジング回路 |
US4460909A (en) * | 1981-12-18 | 1984-07-17 | International Business Machines Corporation | Method and apparatus for enhancing the resolution of an electrophotographic printer |
JPS58114570A (ja) * | 1981-12-26 | 1983-07-07 | Canon Inc | 画像処理装置 |
US4786923A (en) * | 1982-09-07 | 1988-11-22 | Canon Kabushiki Kaisha | Image recording system for image recording in response to signals entered from a recording information generating unit |
DE3436033C2 (de) * | 1983-09-30 | 1997-05-07 | Canon Kk | Ausgabegerät und Verfahren zum Ausgeben von Zeichenmustern |
US4625222A (en) * | 1984-05-17 | 1986-11-25 | International Business Machines Corporation | Interacting print enhancement techniques |
US4544264A (en) * | 1984-05-17 | 1985-10-01 | International Business Machines Corporation | Fine line print enhancement |
US4847641A (en) * | 1988-08-16 | 1989-07-11 | Hewlett-Packard Company | Piece-wise print image enhancement for dot matrix printers |
-
1989
- 1989-10-25 US US07/427,077 patent/US4933689A/en not_active Expired - Lifetime
-
1990
- 1990-10-15 DE DE69024025T patent/DE69024025T2/de not_active Expired - Fee Related
- 1990-10-15 EP EP90311261A patent/EP0425152B1/de not_active Expired - Lifetime
- 1990-10-24 JP JP2288262A patent/JPH03173657A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH03173657A (ja) | 1991-07-26 |
EP0425152A1 (de) | 1991-05-02 |
EP0425152B1 (de) | 1995-12-06 |
US4933689A (en) | 1990-06-12 |
DE69024025T2 (de) | 1996-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE), |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE |
|
8339 | Ceased/non-payment of the annual fee |