FR780051A - Improvements to television devices and similar systems - Google Patents

Improvements to television devices and similar systems

Info

Publication number
FR780051A
FR780051A FR780051DA FR780051A FR 780051 A FR780051 A FR 780051A FR 780051D A FR780051D A FR 780051DA FR 780051 A FR780051 A FR 780051A
Authority
FR
France
Prior art keywords
similar systems
television devices
television
devices
systems
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 FR780051A publication Critical patent/FR780051A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Eye Examination Apparatus (AREA)
FR780051D 1933-10-12 1934-10-12 Improvements to television devices and similar systems Expired FR780051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28235/33A GB426735A (en) 1933-10-12 1933-10-12 Improvements in or relating to television and the like systems

Publications (1)

Publication Number Publication Date
FR780051A true FR780051A (en) 1935-04-18

Family

ID=10272459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR780051D Expired FR780051A (en) 1933-10-12 1934-10-12 Improvements to television devices and similar systems

Country Status (3)

Country Link
US (1) US2152464A (en)
FR (1) FR780051A (en)
GB (1) GB426735A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757149C (en) * 1938-08-17 1954-03-08 Fernseh Gmbh Process for the introduction of a fixed black level in the transmission of negative images and films in television transmission systems
CN112710256A (en) * 2020-12-19 2021-04-27 重庆大学 Electromechanical performance test system and method for scanning grating micro-mirror

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE465736A (en) * 1943-01-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757149C (en) * 1938-08-17 1954-03-08 Fernseh Gmbh Process for the introduction of a fixed black level in the transmission of negative images and films in television transmission systems
CN112710256A (en) * 2020-12-19 2021-04-27 重庆大学 Electromechanical performance test system and method for scanning grating micro-mirror

Also Published As

Publication number Publication date
GB426735A (en) 1935-04-09
US2152464A (en) 1939-03-28

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