JPS572775A - Recording system for gradation image - Google Patents
Recording system for gradation imageInfo
- Publication number
- JPS572775A JPS572775A JP7679780A JP7679780A JPS572775A JP S572775 A JPS572775 A JP S572775A JP 7679780 A JP7679780 A JP 7679780A JP 7679780 A JP7679780 A JP 7679780A JP S572775 A JPS572775 A JP S572775A
- Authority
- JP
- Japan
- Prior art keywords
- heating elements
- printing
- gradation
- picture
- changed
- 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.)
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Dot-Matrix Printers And Others (AREA)
- Electronic Switches (AREA)
- Color, Gradation (AREA)
- Fax Reproducing Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7679780A JPS572775A (en) | 1980-06-06 | 1980-06-06 | Recording system for gradation image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7679780A JPS572775A (en) | 1980-06-06 | 1980-06-06 | Recording system for gradation image |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS572775A true JPS572775A (en) | 1982-01-08 |
JPH0326141B2 JPH0326141B2 (ja) | 1991-04-09 |
Family
ID=13615628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7679780A Granted JPS572775A (en) | 1980-06-06 | 1980-06-06 | Recording system for gradation image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572775A (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226566A (ja) * | 1983-06-08 | 1984-12-19 | Nippon Telegr & Teleph Corp <Ntt> | 画像処理装置 |
WO1987006088A1 (en) * | 1986-03-24 | 1987-10-08 | Eastman Kodak Company | Apparatus and method for controlling a thermal printer apparatus |
US4784501A (en) * | 1986-05-20 | 1988-11-15 | Sanyo Electric Co., Ltd. | Method of enhancing fine line of printer and related circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5473650A (en) * | 1977-11-25 | 1979-06-13 | Keisatsuchiyou Chokan | Gradation recording method |
-
1980
- 1980-06-06 JP JP7679780A patent/JPS572775A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5473650A (en) * | 1977-11-25 | 1979-06-13 | Keisatsuchiyou Chokan | Gradation recording method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226566A (ja) * | 1983-06-08 | 1984-12-19 | Nippon Telegr & Teleph Corp <Ntt> | 画像処理装置 |
JPH045304B2 (ja) * | 1983-06-08 | 1992-01-31 | ||
WO1987006088A1 (en) * | 1986-03-24 | 1987-10-08 | Eastman Kodak Company | Apparatus and method for controlling a thermal printer apparatus |
EP0261176B1 (en) * | 1986-03-24 | 1990-10-24 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Apparatus and method for controlling a thermal printer apparatus |
US4784501A (en) * | 1986-05-20 | 1988-11-15 | Sanyo Electric Co., Ltd. | Method of enhancing fine line of printer and related circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0326141B2 (ja) | 1991-04-09 |
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