FR787688A - Improvements to electrical signaling devices - Google Patents

Improvements to electrical signaling devices

Info

Publication number
FR787688A
FR787688A FR787688DA FR787688A FR 787688 A FR787688 A FR 787688A FR 787688D A FR787688D A FR 787688DA FR 787688 A FR787688 A FR 787688A
Authority
FR
France
Prior art keywords
signaling devices
electrical signaling
electrical
devices
signaling
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR787688A publication Critical patent/FR787688A/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)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Picture Signal Circuits (AREA)
FR787688D 1934-03-31 1935-03-21 Improvements to electrical signaling devices Expired FR787688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US718354A US2124044A (en) 1934-03-31 1934-03-31 Electrical apparatus

Publications (1)

Publication Number Publication Date
FR787688A true FR787688A (en) 1935-09-26

Family

ID=26247284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787688D Expired FR787688A (en) 1934-03-31 1935-03-21 Improvements to electrical signaling devices

Country Status (5)

Country Link
US (1) US2124044A (en)
DE (1) DE701082C (en)
FR (1) FR787688A (en)
GB (1) GB454511A (en)
NL (1) NL41139C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752761C (en) * 1935-11-02 1954-02-08 Telefunken Gmbh Method for regulating the output amplitude of the amplifier for the reception of television broadcasts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895006A (en) * 1952-08-28 1959-07-14 Eastman Kodak Co Apparatus for balancing scanning systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752761C (en) * 1935-11-02 1954-02-08 Telefunken Gmbh Method for regulating the output amplitude of the amplifier for the reception of television broadcasts

Also Published As

Publication number Publication date
US2124044A (en) 1938-07-19
NL41139C (en) 1937-07-15
DE701082C (en) 1941-01-08
GB454511A (en) 1936-10-01

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