FR897326A - Device for the electrical transmission of images - Google Patents

Device for the electrical transmission of images

Info

Publication number
FR897326A
FR897326A FR897326DA FR897326A FR 897326 A FR897326 A FR 897326A FR 897326D A FR897326D A FR 897326DA FR 897326 A FR897326 A FR 897326A
Authority
FR
France
Prior art keywords
images
electrical transmission
electrical
transmission
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BERLINER PHYSIKALISCHE WERKSTA
Original Assignee
BERLINER PHYSIKALISCHE WERKSTA
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.)
Filing date
Publication date
Application filed by BERLINER PHYSIKALISCHE WERKSTA filed Critical BERLINER PHYSIKALISCHE WERKSTA
Application granted granted Critical
Publication of FR897326A publication Critical patent/FR897326A/en
Expired legal-status Critical Current

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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
FR897326D 1942-04-20 1943-08-18 Device for the electrical transmission of images Expired FR897326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE897326X 1942-04-20

Publications (1)

Publication Number Publication Date
FR897326A true FR897326A (en) 1945-03-19

Family

ID=6848653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR897326D Expired FR897326A (en) 1942-04-20 1943-08-18 Device for the electrical transmission of images

Country Status (1)

Country Link
FR (1) FR897326A (en)

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