ES247700A1 - Circuit for adjusting the background brightness in television reproducing device - Google Patents

Circuit for adjusting the background brightness in television reproducing device

Info

Publication number
ES247700A1
ES247700A1 ES0247700A ES247700A ES247700A1 ES 247700 A1 ES247700 A1 ES 247700A1 ES 0247700 A ES0247700 A ES 0247700A ES 247700 A ES247700 A ES 247700A ES 247700 A1 ES247700 A1 ES 247700A1
Authority
ES
Spain
Prior art keywords
adjusting
background brightness
circuit
reproducing device
point
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
ES0247700A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES247700A1 publication Critical patent/ES247700A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/18—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals
    • H04N9/20—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals with more than one beam in a tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

Arrangement of circuits for adjusting the background brightness in a television player device comprising at least the electronic cannons, characterized in that the polarization potential of each electronic cannon is derived by means of a resistance, the voltage of which at one point given and whose voltage drop at its terminals are independently variable, providing means by which the voltage drop between the point of resistance from which the polarization potential is derived and said given point increases or decreases in the same fraction for the various resistances. (Machine-translation by Google Translate, not legally binding)
ES0247700A 1958-03-07 1959-03-04 Circuit for adjusting the background brightness in television reproducing device Expired ES247700A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL225645 1958-03-07

Publications (1)

Publication Number Publication Date
ES247700A1 true ES247700A1 (en) 1960-01-16

Family

ID=19751146

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0247700A Expired ES247700A1 (en) 1958-03-07 1959-03-04 Circuit for adjusting the background brightness in television reproducing device

Country Status (7)

Country Link
US (1) US3015751A (en)
AU (1) AU236688B2 (en)
DE (1) DE1138815B (en)
ES (1) ES247700A1 (en)
FR (1) FR1228185A (en)
GB (1) GB912245A (en)
NL (2) NL113610C (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371897A (en) * 1940-09-05 1945-03-20 Knick Ulrich Compensating arrangement for television tubes
NL82719C (en) * 1951-05-22
NL175973B (en) * 1952-02-12 Philips Nv WELDING DEVICE FOR SHORT-CIRCUIT ARC WELDING.
NL208543A (en) * 1955-07-01
US2888604A (en) * 1955-09-22 1959-05-26 Westinghouse Electric Corp Circuit for increasing the usable light output of cathode ray tubes
US2906917A (en) * 1957-06-11 1959-09-29 Simpson Clarence Trace identifier for oscilloscopes
US2884562A (en) * 1957-08-14 1959-04-28 Du Mont Allen B Lab Inc Brightness control circuit

Also Published As

Publication number Publication date
DE1138815B (en) 1962-10-31
AU4646359A (en) 1959-09-10
AU236688B2 (en) 1959-09-10
GB912245A (en) 1962-12-05
US3015751A (en) 1962-01-02
NL225645A (en)
NL113610C (en)
FR1228185A (en) 1960-08-26

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