JPS4985913A - - Google Patents
Info
- Publication number
- JPS4985913A JPS4985913A JP48018900A JP1890073A JPS4985913A JP S4985913 A JPS4985913 A JP S4985913A JP 48018900 A JP48018900 A JP 48018900A JP 1890073 A JP1890073 A JP 1890073A JP S4985913 A JPS4985913 A JP S4985913A
- 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
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/415—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which the picture-elements are subdivided or grouped into fixed one-dimensional or two-dimensional blocks
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22714972A | 1972-02-17 | 1972-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4985913A true JPS4985913A (en) | 1974-08-17 |
| JPS5424604B2 JPS5424604B2 (en) | 1979-08-22 |
Family
ID=22851959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1890073A Expired JPS5424604B2 (en) | 1972-02-17 | 1973-02-17 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5424604B2 (en) |
| CA (1) | CA1002175A (en) |
| DE (1) | DE2307511C2 (en) |
| FR (1) | FR2172400B1 (en) |
| GB (2) | GB1409364A (en) |
| IT (1) | IT979204B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02256370A (en) * | 1989-05-29 | 1990-10-17 | Canon Inc | Facsimile equipment |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2257183B1 (en) * | 1974-01-04 | 1976-11-26 | Cit Alcatel | FACSIMILE IMAGE TRANSMISSION SYSTEM |
| JPS51132015A (en) * | 1974-12-23 | 1976-11-16 | Fujitsu Ltd | Picture signal encoding transmission system |
| JPS5290216A (en) * | 1976-01-24 | 1977-07-29 | Mita Industrial Co Ltd | Picture signal band compressing method |
| JPS5295113A (en) * | 1976-02-05 | 1977-08-10 | Fujitsu Ltd | Band compression transmission system |
| JPS5826713B2 (en) * | 1976-06-28 | 1983-06-04 | 日本電信電話株式会社 | Sequential boundary differential coding transmission method for binary signals |
| JPS5666971A (en) * | 1979-11-05 | 1981-06-05 | Dainippon Screen Mfg Co Ltd | Picture data compressing method |
| DE3326224A1 (en) * | 1983-07-21 | 1985-02-07 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Circuit arrangement for driving a display device |
| JPS60251775A (en) * | 1984-05-28 | 1985-12-12 | Ricoh Co Ltd | Data transfer system |
| DE4028927A1 (en) * | 1990-08-07 | 1992-02-13 | Dirr Josef | Coding and transmission of originals and images - combines code elements of several lines or channels into code word |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2031646A1 (en) * | 1969-07-02 | 1971-01-14 | Dacom Ine , Sunnyvale, Calif (VStA) | Method and device for compression of image transmission data |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3502806A (en) * | 1966-08-01 | 1970-03-24 | Xerox Corp | Modified run length data reduction system |
| FR1546604A (en) * | 1966-08-15 | 1968-11-22 | Xeros Corp | Phototelegraph communication installation |
| JPS5123408B1 (en) * | 1971-07-10 | 1976-07-16 |
-
1973
- 1973-02-07 GB GB601473A patent/GB1409364A/en not_active Expired
- 1973-02-07 GB GB5349874A patent/GB1409365A/en not_active Expired
- 1973-02-15 DE DE19732307511 patent/DE2307511C2/en not_active Expired
- 1973-02-16 CA CA163,902A patent/CA1002175A/en not_active Expired
- 1973-02-16 IT IT2050673A patent/IT979204B/en active
- 1973-02-16 FR FR7305664A patent/FR2172400B1/fr not_active Expired
- 1973-02-17 JP JP1890073A patent/JPS5424604B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2031646A1 (en) * | 1969-07-02 | 1971-01-14 | Dacom Ine , Sunnyvale, Calif (VStA) | Method and device for compression of image transmission data |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02256370A (en) * | 1989-05-29 | 1990-10-17 | Canon Inc | Facsimile equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| IT979204B (en) | 1974-09-30 |
| DE2307511A1 (en) | 1973-09-06 |
| FR2172400A1 (en) | 1973-09-28 |
| CA1002175A (en) | 1976-12-21 |
| FR2172400B1 (en) | 1978-06-23 |
| GB1409364A (en) | 1975-10-08 |
| GB1409365A (en) | 1975-10-08 |
| DE2307511C2 (en) | 1983-05-11 |
| AU5227973A (en) | 1974-08-22 |
| JPS5424604B2 (en) | 1979-08-22 |