GB1266594A - - Google Patents

Info

Publication number
GB1266594A
GB1266594A GB1266594DA GB1266594A GB 1266594 A GB1266594 A GB 1266594A GB 1266594D A GB1266594D A GB 1266594DA GB 1266594 A GB1266594 A GB 1266594A
Authority
GB
United Kingdom
Prior art keywords
deflection
field
current
coil
sept
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
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 filed Critical
Publication of GB1266594A publication Critical patent/GB1266594A/en
Expired legal-status Critical Current

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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

1,266,594. Cathode-ray tube circuits; gain control. SIEMENS A.G. 16 Sept., 1969 [17 Sept., 1968], No. 45541/69. Headings H3T and H4T. In a cathode-ray tube display a linear relationship between the X-Y deflection drive and the deflection of the beam across the tube screen is produced and defocusing of the beam with deflection is prevented by controlling the gains of transistor amplier stages TS1, TS3, TS5 (Fig. 2), supplying the X, Y deflection currents IX, IY and the focusing current IF by means of the voltages developed across pairs of semiconductor (magnetic) field-dependent resistors P11, P31; P13, P33, and P15, P35 one of each pair of such resistors being located in the field of a coil FS1 carrying the X-deflection current and the other of each pair being located in the field of a coil FS3 carrying the Y-deflection current. The arrangement operates by virtue of the square law relationship between the resistance of the resistor and the magnitude of the current flowing in the associated coil FS1, FS3. The field-dependent resistors may be connected to the base electrodes of the transistors instead of to the emitters.
GB1266594D 1968-09-17 1969-09-16 Expired GB1266594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681764981 DE1764981B1 (en) 1968-09-17 1968-09-17 CIRCUIT ARRANGEMENT FOR CORRECTING LISTING AND SCREENING ERRORS IN CATHODE FLUE PIPES

Publications (1)

Publication Number Publication Date
GB1266594A true GB1266594A (en) 1972-03-15

Family

ID=5698220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266594D Expired GB1266594A (en) 1968-09-17 1969-09-16

Country Status (6)

Country Link
BE (1) BE738985A (en)
DE (1) DE1764981B1 (en)
FR (1) FR2018236A1 (en)
GB (1) GB1266594A (en)
LU (1) LU59442A1 (en)
NL (1) NL6913650A (en)

Also Published As

Publication number Publication date
LU59442A1 (en) 1970-01-08
DE1764981B1 (en) 1971-03-11
FR2018236A1 (en) 1970-05-29
BE738985A (en) 1970-03-17
NL6913650A (en) 1970-03-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees