NL200706A - - Google Patents

Info

Publication number
NL200706A
NL200706A NL200706DA NL200706A NL 200706 A NL200706 A NL 200706A NL 200706D A NL200706D A NL 200706DA NL 200706 A NL200706 A NL 200706A
Authority
NL
Netherlands
Application number
Priority date (The priority date 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 date listed.)
Publication of NL200706A publication Critical patent/NL200706A/xx

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
    • 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)
NL200706D 1955-01-12 NL200706A (xx)

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
NL200706A true NL200706A (xx)

Family

ID=7149359

Family Applications (2)

Application Number Title Priority Date Filing Date
NL200706D NL200706A (xx) 1955-01-12
NL103511D NL103511C (xx) 1955-01-12

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL103511D NL103511C (xx) 1955-01-12

Country Status (6)

Country Link
US (1) US2953639A (xx)
CH (1) CH343444A (xx)
DE (1) DE1045447B (xx)
FR (1) FR1135147A (xx)
GB (1) GB795011A (xx)
NL (2) NL103511C (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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 (xx) * 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)

* Cited by examiner, † Cited by third party
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 (xx) * 1934-09-18
BE479144A (xx) * 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

Also Published As

Publication number Publication date
FR1135147A (fr) 1957-04-24
NL103511C (xx)
US2953639A (en) 1960-09-20
CH343444A (de) 1959-12-31
GB795011A (en) 1958-05-14
DE1045447B (de) 1958-12-04

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