JPS4925811A - - Google Patents
Info
- Publication number
- JPS4925811A JPS4925811A JP48038321A JP3832173A JPS4925811A JP S4925811 A JPS4925811 A JP S4925811A JP 48038321 A JP48038321 A JP 48038321A JP 3832173 A JP3832173 A JP 3832173A JP S4925811 A JPS4925811 A JP S4925811A
- Authority
- JP
- Japan
- 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.)
- Granted
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]
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- 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
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Fax Reproducing Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Color, Gradation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24118772A | 1972-04-05 | 1972-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4925811A true JPS4925811A (US08063081-20111122-C00044.png) | 1974-03-07 |
| JPS539891B2 JPS539891B2 (US08063081-20111122-C00044.png) | 1978-04-10 |
Family
ID=22909621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3832173A Expired JPS539891B2 (US08063081-20111122-C00044.png) | 1972-04-05 | 1973-04-05 |
Country Status (6)
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122624A (en) * | 1977-03-31 | 1978-10-26 | Sumitomo Metal Ind | Continuous casting method of slab |
| JPS57130064A (en) * | 1981-02-06 | 1982-08-12 | Mitsubishi Electric Corp | Picture recorder |
| JPS6021260A (ja) * | 1983-07-15 | 1985-02-02 | Nippon Telegr & Teleph Corp <Ntt> | 階調記録方式 |
| JPH04250810A (ja) * | 1991-01-07 | 1992-09-07 | Daikin Ind Ltd | 空気清浄機 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831178A (en) * | 1973-02-05 | 1974-08-20 | Muirhead Inc | Electrostatic marking system with a load stabilized power supply |
| US3946403A (en) * | 1973-06-13 | 1976-03-23 | Tokyo Shibaura Electric Co., Ltd. | Electrostatic recorder with three state switching |
| US4084259A (en) * | 1973-11-30 | 1978-04-11 | The Mead Corporation | Apparatus for dot matrix recording |
| JPS545613A (en) * | 1977-06-16 | 1979-01-17 | Kokusai Denshin Denwa Co Ltd | Facsimile signal encoding system |
| DE2814891C3 (de) * | 1978-04-06 | 1982-02-11 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Umwandlung eines Videosignals in ein Schwarz/Weiß-Signal |
| US4419679A (en) * | 1980-06-03 | 1983-12-06 | Benson, Inc. | Guadrascan styli for use in staggered recording head |
| FR2524165B1 (fr) * | 1982-03-24 | 1986-06-13 | Gould Instr Saf | Procede d'impression d'une image video avec demi-teintes au moyen d'une tete d'inscription multielectrode et d'un papier dielectrique |
| FR2587572B1 (fr) * | 1985-03-20 | 1994-02-18 | Canon Kk | Appareil et procede de traitement d'images |
| FR2596226B1 (fr) * | 1986-03-19 | 1988-12-02 | Vignon Bernard | Procede de reproduction d'une image a partir de la numerisation de cette image |
| DE3676085D1 (de) * | 1986-04-15 | 1991-01-17 | Maurer Electronics Gmbh | Bildwiedergabesystem zur erzeugung eines digitalen bildes. |
| US5062002A (en) * | 1989-04-28 | 1991-10-29 | Synergy Computer Graphics Corporation | Electrostatic printer with color hue or grey level controlled by the level and/or duty cycle of voltages applied to each styli |
| JP5421640B2 (ja) * | 2008-04-25 | 2014-02-19 | キヤノン株式会社 | 画像形成装置 |
-
1972
- 1972-04-05 US US00241187A patent/US3757036A/en not_active Expired - Lifetime
-
1973
- 1973-04-02 GB GB5264375A patent/GB1436336A/en not_active Expired
- 1973-04-02 GB GB1562873A patent/GB1436335A/en not_active Expired
- 1973-04-04 FR FR7312198A patent/FR2179449A5/fr not_active Expired
- 1973-04-04 CA CA168,407A patent/CA988145A/en not_active Expired
- 1973-04-05 JP JP3832173A patent/JPS539891B2/ja not_active Expired
- 1973-04-05 DE DE2317101A patent/DE2317101B2/de not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122624A (en) * | 1977-03-31 | 1978-10-26 | Sumitomo Metal Ind | Continuous casting method of slab |
| JPS57130064A (en) * | 1981-02-06 | 1982-08-12 | Mitsubishi Electric Corp | Picture recorder |
| JPH0470635B2 (US08063081-20111122-C00044.png) * | 1981-02-06 | 1992-11-11 | Mitsubishi Electric Corp | |
| JPS6021260A (ja) * | 1983-07-15 | 1985-02-02 | Nippon Telegr & Teleph Corp <Ntt> | 階調記録方式 |
| JPH04250810A (ja) * | 1991-01-07 | 1992-09-07 | Daikin Ind Ltd | 空気清浄機 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS539891B2 (US08063081-20111122-C00044.png) | 1978-04-10 |
| FR2179449A5 (US08063081-20111122-C00044.png) | 1973-11-16 |
| DE2317101A1 (de) | 1973-10-25 |
| CA988145A (en) | 1976-04-27 |
| DE2317101B2 (de) | 1974-11-28 |
| US3757036A (en) | 1973-09-04 |
| GB1436335A (en) | 1976-05-19 |
| GB1436336A (en) | 1976-05-19 |
