FR848399A - Improvements to television transmitting systems - Google Patents

Improvements to television transmitting systems

Info

Publication number
FR848399A
FR848399A FR848399DA FR848399A FR 848399 A FR848399 A FR 848399A FR 848399D A FR848399D A FR 848399DA FR 848399 A FR848399 A FR 848399A
Authority
FR
France
Prior art keywords
transmitting systems
television transmitting
television
systems
transmitting
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR848399A publication Critical patent/FR848399A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
FR848399D 1938-01-11 1939-01-03 Improvements to television transmitting systems Expired FR848399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2215186X 1938-01-11

Publications (1)

Publication Number Publication Date
FR848399A true FR848399A (en) 1939-10-27

Family

ID=10901411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR848399D Expired FR848399A (en) 1938-01-11 1939-01-03 Improvements to television transmitting systems

Country Status (2)

Country Link
US (1) US2215186A (en)
FR (1) FR848399A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463038A (en) * 1944-07-06 1949-03-01 Rca Corp Direct current insertion circuit
US2465667A (en) * 1945-01-09 1949-03-29 Rca Corp Method of and means for controlling the beam current in television camera tubes

Also Published As

Publication number Publication date
US2215186A (en) 1940-09-17

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