GB488843A - Improvements in television receivers - Google Patents

Improvements in television receivers

Info

Publication number
GB488843A
GB488843A GB6989/38A GB698938A GB488843A GB 488843 A GB488843 A GB 488843A GB 6989/38 A GB6989/38 A GB 6989/38A GB 698938 A GB698938 A GB 698938A GB 488843 A GB488843 A GB 488843A
Authority
GB
United Kingdom
Prior art keywords
line
march
television receivers
oscillator
frame
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
GB6989/38A
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 GB488843A publication Critical patent/GB488843A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

488,843. Television receivers. NAAMLOOZE VENNOOTSCHAP PHILIPS'GLOEILAMPENFABRIEKEN. March 5, 1938, No. 6989. Convention date, March 8, 1937. Drawings to Specification. [Class 40 (iii)] The line frequency oscillator is coupled to the deflecting plates or coils over a circuit which passes the frame frequency. The cessation of line impulses during a frame impulse, causes the line oscillator to produce oscillations of greater amplitude which introduce a frame frequency component in the train of line oscillations and this component must be passed to the deflecting means if the first few lines of each scan are not to be displaced.
GB6989/38A 1937-03-08 1938-03-05 Improvements in television receivers Expired GB488843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE488843X 1937-03-08

Publications (1)

Publication Number Publication Date
GB488843A true GB488843A (en) 1938-07-14

Family

ID=6543867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6989/38A Expired GB488843A (en) 1937-03-08 1938-03-05 Improvements in television receivers

Country Status (2)

Country Link
FR (1) FR834879A (en)
GB (1) GB488843A (en)

Also Published As

Publication number Publication date
FR834879A (en) 1938-12-05

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