JPS5767378A - Printer - Google Patents
PrinterInfo
- Publication number
- JPS5767378A JPS5767378A JP55143876A JP14387680A JPS5767378A JP S5767378 A JPS5767378 A JP S5767378A JP 55143876 A JP55143876 A JP 55143876A JP 14387680 A JP14387680 A JP 14387680A JP S5767378 A JPS5767378 A JP S5767378A
- Authority
- JP
- Japan
- Prior art keywords
- black
- pulse width
- white
- division
- pulse
- 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.)
- Pending
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]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Image Signal Circuits (AREA)
- Dot-Matrix Printers And Others (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55143876A JPS5767378A (en) | 1980-10-15 | 1980-10-15 | Printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55143876A JPS5767378A (en) | 1980-10-15 | 1980-10-15 | Printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5767378A true JPS5767378A (en) | 1982-04-23 |
Family
ID=15349055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55143876A Pending JPS5767378A (en) | 1980-10-15 | 1980-10-15 | Printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5767378A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4556918A (en) * | 1982-12-27 | 1985-12-03 | Kabushiki Kaisha Sakata Shokai | Method and apparatus for generating screened halftone images |
JPS61189567A (ja) * | 1985-02-19 | 1986-08-23 | Canon Inc | 画像形成装置 |
JPS6388966A (ja) * | 1986-10-01 | 1988-04-20 | Mita Ind Co Ltd | 階調表示方法 |
JPS6472850A (en) * | 1987-09-14 | 1989-03-17 | Canon Kk | Image data processing apparatus |
-
1980
- 1980-10-15 JP JP55143876A patent/JPS5767378A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4556918A (en) * | 1982-12-27 | 1985-12-03 | Kabushiki Kaisha Sakata Shokai | Method and apparatus for generating screened halftone images |
JPS61189567A (ja) * | 1985-02-19 | 1986-08-23 | Canon Inc | 画像形成装置 |
JPS6388966A (ja) * | 1986-10-01 | 1988-04-20 | Mita Ind Co Ltd | 階調表示方法 |
JPS6472850A (en) * | 1987-09-14 | 1989-03-17 | Canon Kk | Image data processing apparatus |
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