FR2171316B1 - - Google Patents
Info
- Publication number
- FR2171316B1 FR2171316B1 FR7304514A FR7304514A FR2171316B1 FR 2171316 B1 FR2171316 B1 FR 2171316B1 FR 7304514 A FR7304514 A FR 7304514A FR 7304514 A FR7304514 A FR 7304514A FR 2171316 B1 FR2171316 B1 FR 2171316B1
- Authority
- FR
- France
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Fax Reproducing Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47013318A JPS4883724A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-08 | 1972-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2171316A1 FR2171316A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-09-21 |
| FR2171316B1 true FR2171316B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-08-19 |
Family
ID=11829808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7304514A Expired FR2171316B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-08 | 1973-02-08 |
Country Status (3)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50116215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-02-26 | 1975-09-11 | ||
| JPS51132726A (en) * | 1975-05-14 | 1976-11-18 | Kokusai Electric Co Ltd | Image-display unit |
| US4087792A (en) * | 1977-03-03 | 1978-05-02 | Westinghouse Electric Corp. | Electro-optic display system |
| JPS5694876A (en) * | 1979-12-27 | 1981-07-31 | Fujitsu Ltd | Video signal processing method |
| JPS5694874A (en) * | 1979-12-28 | 1981-07-31 | Fujitsu Ltd | Video signal processor |
| JPS5694875A (en) * | 1979-12-28 | 1981-07-31 | Fujitsu Ltd | Binary signal processor |
| JPS56109068A (en) * | 1980-02-04 | 1981-08-29 | Nippon Telegr & Teleph Corp <Ntt> | Recorder for multitone |
| DE3130207C2 (de) * | 1980-07-31 | 1986-03-06 | Matsushita Research Institute Tokyo, Inc., Kawasaki, Kanagawa | Punktdrucker mit einem Aufzeichnungskopf |
| JPS57205787A (en) * | 1981-06-15 | 1982-12-16 | Tokyo Shibaura Electric Co | Half tone display system |
| FR2591367A1 (fr) * | 1985-12-06 | 1987-06-12 | Canon Kk | Appareil de traitement de donnees d'image. |
| EP0507356B1 (en) * | 1986-12-19 | 1997-02-26 | Matsushita Electric Industrial Co., Ltd. | Bi-level image display signal processing apparatus |
-
1972
- 1972-02-08 JP JP47013318A patent/JPS4883724A/ja active Pending
-
1973
- 1973-02-05 DE DE19732305513 patent/DE2305513A1/de active Pending
- 1973-02-08 FR FR7304514A patent/FR2171316B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2171316A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-09-21 |
| DE2305513A1 (de) | 1973-08-16 |
| JPS4883724A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-11-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |