NL103511C - - Google Patents
Info
- Publication number
- NL103511C NL103511C NL103511DA NL103511C NL 103511 C NL103511 C NL 103511C NL 103511D A NL103511D A NL 103511DA NL 103511 C NL103511 C NL 103511C
- 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
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
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- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH22670A DE1045447B (de) | 1955-01-12 | 1955-01-12 | Schaltungsanordnung zur automatischen Einstellung eines Faksimilesenders auf die unterschiedliche Untergrundhelligkeit der zu uebertragenden Dokumente |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL103511C true NL103511C (es) |
Family
ID=7149359
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL200706D NL200706A (es) | 1955-01-12 | ||
| NL103511D NL103511C (es) | 1955-01-12 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL200706D NL200706A (es) | 1955-01-12 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2953639A (es) |
| CH (1) | CH343444A (es) |
| DE (1) | DE1045447B (es) |
| FR (1) | FR1135147A (es) |
| GB (1) | GB795011A (es) |
| NL (2) | NL103511C (es) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1114219B (de) * | 1960-03-12 | 1961-09-28 | Arnstadt Fernmeldewerk | Schaltungsanordnung zur Konstanthaltung der Differenz zwischen Weiss- und Schwarzspannung in fotoelektrisch gesteuerten Faksimilesendern |
| US3204027A (en) * | 1962-12-20 | 1965-08-31 | Itt | Contrast control circuit |
| US3761610A (en) * | 1971-02-16 | 1973-09-25 | Graphics Sciences Inc | High speed fascimile systems |
| JPS5241088B2 (es) * | 1973-02-06 | 1977-10-17 | ||
| USRE30911E (en) | 1977-11-25 | 1982-04-20 | The Mead Corporation | Optical scanning and encoding device |
| US4270147A (en) * | 1980-02-11 | 1981-05-26 | Exxon Research & Engineering Company | Apparatus for limiting facsimile transmission durations |
| US4516174A (en) * | 1980-03-10 | 1985-05-07 | Ricoh Company, Ltd. | Video signal regulating apparatus |
| JPS57116477A (en) * | 1981-01-09 | 1982-07-20 | Fuji Xerox Co Ltd | Scanning type document reader |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1690300A (en) * | 1925-04-03 | 1928-11-06 | Bell Telephone Labor Inc | Transmission of pictures by electricity |
| US1743856A (en) * | 1925-08-20 | 1930-01-14 | Western Electric Co | Picture transmission |
| US1695048A (en) * | 1925-12-24 | 1928-12-11 | Bell Telephone Labor Inc | Picture transmission |
| DE549273C (de) * | 1929-04-24 | 1932-04-25 | Telefunken Gmbh | Verfahren zur Beseitigung stoerender Impulsverbreiterungen oder -verlagerungen |
| US1865646A (en) * | 1929-04-24 | 1932-07-05 | Telefunken Gmbh | Intensity control |
| AT132481B (de) * | 1931-02-28 | 1933-03-25 | Lorenz C Ag | Verfahren zur Beseitigung der Schwunderscheinung beim Bildempfang. |
| US2081730A (en) * | 1932-03-22 | 1937-05-25 | Rca Corp | Television system |
| NL46321C (es) * | 1934-09-18 | |||
| BE479144A (es) * | 1940-10-26 | |||
| US2347015A (en) * | 1942-09-17 | 1944-04-18 | Press Ass Inc | Means of compensating for drift of photoelectric devices and associated circuits |
| US2564572A (en) * | 1946-10-31 | 1951-08-14 | Rca Corp | Gain control system for facsimile scanning |
| US2554317A (en) * | 1946-12-18 | 1951-05-22 | Rca Corp | Clamp circuit |
| GB652060A (en) * | 1948-06-03 | 1951-04-18 | Emi Ltd | Improvements relating to apparatus for generating picture signals suitable for television transmission, from cinematograph film |
| US2804497A (en) * | 1953-08-31 | 1957-08-27 | Fairchild Camera Instr Co | Automatic-gain-control system for photoelectric engraving machines |
-
0
- NL NL200706D patent/NL200706A/xx unknown
- NL NL103511D patent/NL103511C/xx active
-
1955
- 1955-01-12 DE DEH22670A patent/DE1045447B/de active Pending
- 1955-10-14 CH CH343444D patent/CH343444A/de unknown
- 1955-10-28 GB GB30913/55A patent/GB795011A/en not_active Expired
- 1955-11-04 US US545084A patent/US2953639A/en not_active Expired - Lifetime
- 1955-11-05 FR FR1135147D patent/FR1135147A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1135147A (fr) | 1957-04-24 |
| US2953639A (en) | 1960-09-20 |
| CH343444A (de) | 1959-12-31 |
| GB795011A (en) | 1958-05-14 |
| NL200706A (es) | |
| DE1045447B (de) | 1958-12-04 |