ES464991A1 - Perfeccionamientos en receptores de facsimil. - Google Patents
Perfeccionamientos en receptores de facsimil.Info
- Publication number
- ES464991A1 ES464991A1 ES464991A ES464991A ES464991A1 ES 464991 A1 ES464991 A1 ES 464991A1 ES 464991 A ES464991 A ES 464991A ES 464991 A ES464991 A ES 464991A ES 464991 A1 ES464991 A1 ES 464991A1
- Authority
- ES
- Spain
- Prior art keywords
- light emitting
- emitting diode
- imaging system
- diode array
- array imaging
- 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
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
- H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
- H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously
Landscapes
- Multimedia (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Fax Reproducing Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Color, Gradation (AREA)
- Facsimile Image Signal Circuits (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimiles In General (AREA)
Abstract
Perfeccionamientos en receptores facsímil del tipo que comprende una formación de fuentes de energía para generar imágenes en respuesta a los datos de facsímil recibidoscaracterizados porque cada receptor comprende un primer dispositivo de control para generar una pluralidad de señales y activar independientemente todas las fuentes de energía en partes elegidas de los mismos intervalos de tiempo de acuerdo con los valores de los datos recibidos para proporcionar imágenes de tonos múltiples.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/750,273 US4074319A (en) | 1976-12-13 | 1976-12-13 | Light emitting diode array imaging system - parallel approach |
Publications (1)
Publication Number | Publication Date |
---|---|
ES464991A1 true ES464991A1 (es) | 1978-09-01 |
Family
ID=25017172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES464991A Expired ES464991A1 (es) | 1976-12-13 | 1977-12-13 | Perfeccionamientos en receptores de facsimil. |
Country Status (14)
Country | Link |
---|---|
US (1) | US4074319A (es) |
JP (1) | JPS5374830A (es) |
AU (1) | AU515613B2 (es) |
BE (1) | BE861595A (es) |
CA (1) | CA1124832A (es) |
CH (1) | CH631850A5 (es) |
DE (1) | DE2754240A1 (es) |
ES (1) | ES464991A1 (es) |
FR (1) | FR2373928A1 (es) |
GB (1) | GB1594151A (es) |
IL (1) | IL53556A (es) |
IT (1) | IT1088769B (es) |
NL (1) | NL7713546A (es) |
SE (1) | SE420884B (es) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54146528A (en) * | 1978-05-09 | 1979-11-15 | Nec Corp | Electron distribution recording device |
FR2469841A1 (fr) * | 1979-11-09 | 1981-05-22 | Thomson Csf | Dispositif de restitution de teintes utilisant une tete d'impression thermique et systeme d'impression thermique comportant un tel dispositif |
JPS56109068A (en) * | 1980-02-04 | 1981-08-29 | Nippon Telegr & Teleph Corp <Ntt> | Recorder for multitone |
US4378568A (en) * | 1981-01-29 | 1983-03-29 | Eastman Kodak Company | Light valve imaging apparatus and method for providing gray scale |
EP0068702B1 (en) * | 1981-06-19 | 1986-09-24 | Kabushiki Kaisha Toshiba | Thermal printer |
JPS5825965A (ja) * | 1981-08-08 | 1983-02-16 | Sony Corp | プリンタにおける着色特性補正回路 |
US4475115A (en) * | 1982-05-27 | 1984-10-02 | Eastman Kodak Company | Banding-free printing by linear array of photosources |
JPS5910073A (ja) * | 1982-07-09 | 1984-01-19 | Canon Inc | 記録装置 |
US4455578A (en) * | 1982-08-30 | 1984-06-19 | Eastman Kodak Company | Electronics for arrayed photosources |
JPS59132276U (ja) * | 1983-02-24 | 1984-09-05 | 沖電気工業株式会社 | 発光素子駆動回路 |
GB2143985B (en) * | 1983-07-26 | 1987-01-28 | Ferranti Plc | Two dimensional visual display |
JPS60135279A (ja) * | 1983-12-23 | 1985-07-18 | Canon Inc | Ledプリンタ |
US4646079A (en) * | 1984-09-12 | 1987-02-24 | Cornell Research Foundation, Inc. | Self-scanning electroluminescent display |
JPS62272759A (ja) * | 1986-05-21 | 1987-11-26 | Matsushita Electric Ind Co Ltd | 電子写真記録装置 |
JPS62284567A (ja) * | 1986-06-02 | 1987-12-10 | Matsushita Electric Ind Co Ltd | 電子写真記録装置 |
JPS6374664A (ja) * | 1986-09-18 | 1988-04-05 | Sony Corp | 感熱ヘツドの駆動回路 |
US5189406A (en) * | 1986-09-20 | 1993-02-23 | Thorn Emi Plc | Display device |
GB8623240D0 (en) * | 1986-09-26 | 1986-10-29 | Emi Plc Thorn | Display device |
JPS63312173A (ja) * | 1987-06-12 | 1988-12-20 | Mitsubishi Electric Corp | 発光ダイオ−ドアレイの光量制御装置 |
GB2210720A (en) * | 1987-10-09 | 1989-06-14 | Eric Cheng | LED displays |
US5600363A (en) * | 1988-12-28 | 1997-02-04 | Kyocera Corporation | Image forming apparatus having driving means at each end of array and power feeding substrate outside head housing |
US4963989A (en) * | 1989-12-18 | 1990-10-16 | Eastman Kodak Company | Method and apparatus for grey level printing |
US5245355A (en) * | 1989-12-18 | 1993-09-14 | Eastman Kodak Company | Method and apparatus for grey level printing with amplitude and pulsewidth modulation |
DE69131655T2 (de) * | 1990-05-10 | 2000-03-02 | Eastman Kodak Co | Vorrichtung und Verfahren für Grauwerkdruck unter Anwendung eines Druckkopfes mit binärer Architektur |
US5255013A (en) * | 1990-11-07 | 1993-10-19 | Eastman Kodak Company | Multiple address grey level LED printing with binary architectured printhead |
US5315320A (en) * | 1990-09-29 | 1994-05-24 | Kyocera Corporation | Mirror image printing printhead |
ATE119475T1 (de) * | 1990-11-21 | 1995-03-15 | Polaroid Corp | Druckgerät. |
JPH04276465A (ja) * | 1991-03-04 | 1992-10-01 | Ricoh Co Ltd | 画像形成装置 |
JP2866758B2 (ja) * | 1991-07-05 | 1999-03-08 | 沖電気工業株式会社 | ノンインパクトプリンタ |
US5923355A (en) * | 1991-07-16 | 1999-07-13 | Minolta, Co., Ltd. | Optical writing device |
JP3138349B2 (ja) * | 1992-04-03 | 2001-02-26 | ローム株式会社 | Ledプリンタ |
JPH05318812A (ja) * | 1992-05-19 | 1993-12-03 | Brother Ind Ltd | 画像形成装置 |
JPH0655773A (ja) * | 1992-08-04 | 1994-03-01 | Minolta Camera Co Ltd | 固体走査型プリントヘッド |
US5581295A (en) * | 1992-11-27 | 1996-12-03 | Eastman Kodak Company | Method and apparatus for resequencing image data for a printhead |
KR960005015B1 (ko) * | 1992-12-09 | 1996-04-18 | 삼성전자주식회사 | 프린팅 헤드를 갖는 프린터에서의 계조 표현 방법 및 구동회로 |
US5461410A (en) * | 1993-03-29 | 1995-10-24 | Texas Instruments Incorporated | Gray scale printing using spatial light modulators |
US5455602A (en) * | 1993-03-29 | 1995-10-03 | Texas Instruments Incorporated | Combined modulation schemes for spatial light modulators |
US5612728A (en) * | 1994-05-20 | 1997-03-18 | Westinghouse Electric Corporation | Full color TFEL edge emitter printing system |
US5615016A (en) * | 1994-11-04 | 1997-03-25 | Texas Instruments Incorporated | Exposure scheme for minimizing microbanding inslm-based printers |
KR100219831B1 (ko) * | 1994-12-06 | 1999-09-01 | 니시모토 칸이치 | 노광장치 |
US5808800A (en) | 1994-12-22 | 1998-09-15 | Displaytech, Inc. | Optics arrangements including light source arrangements for an active matrix liquid crystal image generator |
US5748164A (en) | 1994-12-22 | 1998-05-05 | Displaytech, Inc. | Active matrix liquid crystal image generator |
JPH07232455A (ja) * | 1995-01-17 | 1995-09-05 | Canon Inc | 画像形成装置 |
JPH08300730A (ja) * | 1995-03-07 | 1996-11-19 | Minolta Co Ltd | 画像形成装置 |
JP3319208B2 (ja) * | 1995-03-07 | 2002-08-26 | ミノルタ株式会社 | デジタル画像形成装置 |
US7113541B1 (en) | 1997-08-26 | 2006-09-26 | Color Kinetics Incorporated | Method for software driven generation of multiple simultaneous high speed pulse width modulated signals |
US6806659B1 (en) | 1997-08-26 | 2004-10-19 | Color Kinetics, Incorporated | Multicolored LED lighting method and apparatus |
CN112994799B (zh) * | 2021-03-09 | 2023-05-12 | 北京航空航天大学 | 一种基于高速led阵列的光强信号发射装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3590156A (en) * | 1968-08-28 | 1971-06-29 | Zenith Radio Corp | Flat panel display system with time-modulated gray scale |
US3627924A (en) * | 1969-05-16 | 1971-12-14 | Energy Conversion Devices Inc | Flat screen television system |
GB1451082A (en) * | 1973-10-02 | 1976-09-29 | Crosfield Electronics Ltd | Exposing scanners for image reproduction |
JPS51123511A (en) * | 1975-04-22 | 1976-10-28 | Oki Electric Ind Co Ltd | Degree recording method |
-
1976
- 1976-12-13 US US05/750,273 patent/US4074319A/en not_active Expired - Lifetime
-
1977
- 1977-11-08 CA CA290,399A patent/CA1124832A/en not_active Expired
- 1977-11-30 SE SE7713583A patent/SE420884B/sv not_active IP Right Cessation
- 1977-12-06 DE DE19772754240 patent/DE2754240A1/de active Granted
- 1977-12-07 BE BE183245A patent/BE861595A/xx not_active IP Right Cessation
- 1977-12-07 NL NL7713546A patent/NL7713546A/xx not_active Application Discontinuation
- 1977-12-07 FR FR7736838A patent/FR2373928A1/fr active Granted
- 1977-12-07 IL IL53556A patent/IL53556A/xx unknown
- 1977-12-09 AU AU31399/77A patent/AU515613B2/en not_active Expired
- 1977-12-09 CH CH1518377A patent/CH631850A5/de not_active IP Right Cessation
- 1977-12-12 IT IT30610/77A patent/IT1088769B/it active
- 1977-12-12 GB GB51530/77A patent/GB1594151A/en not_active Expired
- 1977-12-13 JP JP14891977A patent/JPS5374830A/ja active Granted
- 1977-12-13 ES ES464991A patent/ES464991A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7713546A (nl) | 1978-06-15 |
IT1088769B (it) | 1985-06-10 |
SE420884B (sv) | 1981-11-02 |
GB1594151A (en) | 1981-07-30 |
US4074319A (en) | 1978-02-14 |
IL53556A0 (en) | 1978-03-10 |
BE861595A (fr) | 1978-03-31 |
JPS5374830A (en) | 1978-07-03 |
DE2754240C2 (es) | 1989-10-12 |
AU3139977A (en) | 1979-06-14 |
JPS6232865B2 (es) | 1987-07-17 |
FR2373928A1 (fr) | 1978-07-07 |
DE2754240A1 (de) | 1978-06-15 |
CH631850A5 (de) | 1982-08-31 |
CA1124832A (en) | 1982-06-01 |
SE7713583L (sv) | 1978-06-14 |
FR2373928B1 (es) | 1982-06-04 |
IL53556A (en) | 1980-05-30 |
AU515613B2 (en) | 1981-04-16 |
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