GB457417A - Television receiving systems - Google Patents

Television receiving systems

Info

Publication number
GB457417A
GB457417A GB31682/35A GB3168235A GB457417A GB 457417 A GB457417 A GB 457417A GB 31682/35 A GB31682/35 A GB 31682/35A GB 3168235 A GB3168235 A GB 3168235A GB 457417 A GB457417 A GB 457417A
Authority
GB
United Kingdom
Prior art keywords
valve
july
cathode
ray tube
varied
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
GB31682/35A
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB457417A publication Critical patent/GB457417A/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
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)

Abstract

457,417. Television. LORENZ AKT.- GES. C., 1, Lorenzweg, Tempelhof, Berlin. Nov. 15, 1935, Nos. 31682 and 31683. Convention dates, July 3 and July 10. [Class 40 (iii)] " Blacker than black" synchronizing signals isolated by an amplitude filter valve R2 are reversed in phase by a valve R3 to render them to the right sign necessary to control the relaxation oscillators. The valve R2 is biassed to pass only the synchronizing impulses and its cut-off level is preferably varied by varying its anode potential. If the signal applied to valve R2 has been applied to the cathode - ray tube at some previous stage, the anode voltage of the valve R2 can be adjusted for conditions corresponding to complete modulation of the cathode-ray tube and will not require further adjustment unless the proportion of the carrier reserved for the synchronozing signal is varied or a new cathoderay tube inserted.
GB31682/35A 1935-07-03 1935-11-15 Television receiving systems Expired GB457417A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE457417X 1935-07-03

Publications (1)

Publication Number Publication Date
GB457417A true GB457417A (en) 1936-11-27

Family

ID=6539312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31682/35A Expired GB457417A (en) 1935-07-03 1935-11-15 Television receiving systems

Country Status (2)

Country Link
FR (1) FR798332A (en)
GB (1) GB457417A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757397C (en) * 1937-03-18 1952-12-01 Emi Ltd Circuit for separating parts of a voltage curve that fluctuates over time

Also Published As

Publication number Publication date
FR798332A (en) 1936-05-14

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