NL287137A - - Google Patents
Info
- Publication number
- NL287137A NL287137A NL287137A NL287137A NL287137A NL 287137 A NL287137 A NL 287137A NL 287137 A NL287137 A NL 287137A NL 287137 A NL287137 A NL 287137A NL 287137 A NL287137 A NL 287137A
- Authority
- NL
- Netherlands
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
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/36—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device for synchronising or phasing transmitter and receiver
-
- 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
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
- H04N1/4076—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on references outside the picture
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
- Facsimiles In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US175445A US3223778A (en) | 1962-02-26 | 1962-02-26 | Facsimile system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL287137A true NL287137A (en:Method) | 1965-02-25 |
Family
ID=22640243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL287137A NL287137A (en:Method) | 1962-02-26 | 1962-12-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3223778A (en:Method) |
| BE (1) | BE626969A (en:Method) |
| DE (1) | DE1412727B2 (en:Method) |
| GB (1) | GB1028304A (en:Method) |
| NL (1) | NL287137A (en:Method) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3394221A (en) * | 1963-12-11 | 1968-07-23 | Xerox Corp | Noise level circuitry for facsimile transmission |
| US3394220A (en) * | 1963-12-11 | 1968-07-23 | Xerox Corp | High resolution circuitry for facsimile transmission |
| US3394222A (en) * | 1963-12-11 | 1968-07-23 | Xerox Corp | Facsimile communication system |
| US3472958A (en) * | 1966-08-01 | 1969-10-14 | Xerox Corp | Facsimile system |
| GB1180819A (en) * | 1966-10-03 | 1970-02-11 | Nippon Electric Co | Improvements in or relating to Phototelegraph Receivers. |
| US3792927A (en) * | 1967-08-17 | 1974-02-19 | Bunker Ramo | Scanning means having dead-time compensation for interrupted scanning periods |
| GB1332891A (en) * | 1969-10-31 | 1973-10-10 | Image Analysing Computers Ltd | Image analysis |
| US3641259A (en) * | 1970-08-03 | 1972-02-08 | Hazeltine Corp | Flarelight compensator |
| US3761610A (en) * | 1971-02-16 | 1973-09-25 | Graphics Sciences Inc | High speed fascimile systems |
| US3723649A (en) * | 1971-04-27 | 1973-03-27 | Electronic Image Syst Corp | Adaptive binary state decision system |
| DE2430762A1 (de) * | 1974-06-26 | 1976-01-15 | Gruner & Jahr | Verfahren zur informationsverarbeitung fuer die herstellung einer druckform und vorrichtung zur durchfuehrung des verfahrens |
| NL175777C (nl) * | 1977-05-27 | 1984-12-17 | Nederlanden Staat | Schakeling voor de eliminatie van de achtergrondhelderheidsvariatie van een videosignaal. |
| US4227218A (en) * | 1978-12-14 | 1980-10-07 | Exxon Research & Engineering Co. | Method and apparatus for generating a digital facsimile signal |
| US4468705A (en) * | 1981-12-07 | 1984-08-28 | Exxon Research And Engineering Co. | Data transition enhancement |
| US5025480A (en) * | 1987-03-23 | 1991-06-18 | Eastman Kodak Company | Background referencing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2730567A (en) * | 1950-06-15 | 1956-01-10 | Times Facsimile Corp | Facsimile scanning method and apparatus for predetermined signal output and contrast |
| BE533494A (en:Method) * | 1953-11-20 | |||
| US2855513A (en) * | 1955-11-30 | 1958-10-07 | Ibm | Clipping circuit with clipping level automatically set by average input level |
| US2999925A (en) * | 1959-01-28 | 1961-09-12 | Page Comm Engineers Inc | Variable decision threshold computer |
-
1962
- 1962-02-26 US US175445A patent/US3223778A/en not_active Expired - Lifetime
- 1962-12-05 DE DE19621412727 patent/DE1412727B2/de active Pending
- 1962-12-21 NL NL287137A patent/NL287137A/xx unknown
-
1963
- 1963-01-09 BE BE626969A patent/BE626969A/xx unknown
- 1963-02-07 GB GB5040/63A patent/GB1028304A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3223778A (en) | 1965-12-14 |
| DE1412727A1 (de) | 1968-10-10 |
| GB1028304A (en) | 1966-05-04 |
| BE626969A (en:Method) | 1963-05-02 |
| DE1412727B2 (de) | 1970-07-30 |