BE442948A - - Google Patents

Info

Publication number
BE442948A
BE442948A BE442948DA BE442948A BE 442948 A BE442948 A BE 442948A BE 442948D A BE442948D A BE 442948DA BE 442948 A BE442948 A BE 442948A
Authority
BE
Belgium
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 BE442948A publication Critical patent/BE442948A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
BE442948D 1940-02-16 BE442948A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US319251A US2278692A (en) 1940-02-16 1940-02-16 Facsimile signal inverter

Publications (1)

Publication Number Publication Date
BE442948A true BE442948A (enrdf_load_stackoverflow)

Family

ID=23241465

Family Applications (1)

Application Number Title Priority Date Filing Date
BE442948D BE442948A (enrdf_load_stackoverflow) 1940-02-16

Country Status (3)

Country Link
US (1) US2278692A (enrdf_load_stackoverflow)
BE (1) BE442948A (enrdf_load_stackoverflow)
GB (1) GB544268A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532566A (en) * 1945-10-26 1950-12-05 Millman Jacob Photoelectric gate control for pulse-echo systems
US2657258A (en) * 1951-01-18 1953-10-27 Faximile Inc Facsimile system wherein the recording is a modification of the copy
US2729699A (en) * 1951-01-18 1956-01-03 Faximile Inc Facsimile system wherein the recording is a modification of the copy

Also Published As

Publication number Publication date
US2278692A (en) 1942-04-07
GB544268A (en) 1942-04-03

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