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SE8302127L - CIRCUIT WITH VARIABLE HORIZONTAL DEVICE, WHICH CIRCLE CAN ASTADKOMMA EAST-WEST CUSHION CORRECTION - Google Patents

CIRCUIT WITH VARIABLE HORIZONTAL DEVICE, WHICH CIRCLE CAN ASTADKOMMA EAST-WEST CUSHION CORRECTION

Info

Publication number
SE8302127L
SE8302127L SE8302127A SE8302127A SE8302127L SE 8302127 L SE8302127 L SE 8302127L SE 8302127 A SE8302127 A SE 8302127A SE 8302127 A SE8302127 A SE 8302127A SE 8302127 L SE8302127 L SE 8302127L
Authority
SE
Sweden
Prior art keywords
deflection
circuit
retrace
coupled
modulation
Prior art date
Application number
SE8302127A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8302127D0 (en
SE453241B (en
Inventor
P E Haferl
Original Assignee
Rca Corp
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
Priority claimed from US06/428,238 external-priority patent/US4429257A/en
Application filed by Rca Corp filed Critical Rca Corp
Publication of SE8302127D0 publication Critical patent/SE8302127D0/en
Publication of SE8302127L publication Critical patent/SE8302127L/en
Publication of SE453241B publication Critical patent/SE453241B/en

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
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements

Landscapes

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

Abstract

In a deflection circuit suitable for a television receiver, a controllable switch (Q1) operated at the horizontal deflection rate is coupled to a horizontal deflection winding (LH) to generate scanning current during a trace interval of a deflection cycle. A deflection retrace capacitor (CRD1, CRD2) forms a retrace resonant circuit (25) with the deflection winding (LH) during the retrace interval. A supply inductance such as a winding (W1') of a horizontal output transformer (T) is coupled either conductively or magnetically to a generator (50) of supply energy. A second capacitor (CRT) is coupled to the supply inductance (W1') and to the controllable switch (Q1) and forms a second resonant circuit (30) with the supply inductance within the retrace interval to generate a pulse voltage. The pulse voltage energizes a load circuit such as the ultor high voltage circuit (31). A modulation inductance (T2) is coupled to a source (Q2) of modulation signals and to the deflection winding (LH) and supplies a modulation current to the retrace resonant circuit (25) to modulate the amplitude of the scanning current without modulating the amplitude of the supply inductance pulse voltage. The modulation may occur at a vertical rate to provide east-west pincushion distortion correction. <IMAGE>
SE8302127A 1982-04-23 1983-04-15 VARIABLE HORIZONTAL DEVICE CIRCUIT, WHICH CIRCLE CAN ASTADKOMMA EAST-WEST CUSHION CORRECTION SE453241B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8211833 1982-04-23
US06/428,238 US4429257A (en) 1982-04-23 1982-09-29 Variable horizontal deflection circuit capable of providing east-west pincushion correction

Publications (3)

Publication Number Publication Date
SE8302127D0 SE8302127D0 (en) 1983-04-15
SE8302127L true SE8302127L (en) 1983-10-24
SE453241B SE453241B (en) 1988-01-18

Family

ID=26282634

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8302127A SE453241B (en) 1982-04-23 1983-04-15 VARIABLE HORIZONTAL DEVICE CIRCUIT, WHICH CIRCLE CAN ASTADKOMMA EAST-WEST CUSHION CORRECTION

Country Status (10)

Country Link
AT (1) AT386502B (en)
AU (1) AU559242B2 (en)
DE (1) DE3314470A1 (en)
DK (1) DK163090C (en)
ES (1) ES8404107A1 (en)
FI (1) FI77132C (en)
FR (1) FR2525842B1 (en)
GB (1) GB2119209B (en)
IT (1) IT1170130B (en)
SE (1) SE453241B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8501188A1 (en) * 1983-02-21 1984-11-01 Rca Corp Circuit for changing the image size of a television receiver
GB8331283D0 (en) * 1983-11-23 1983-12-29 Rca Corp E-w correction by yoke sink current control
US4625155A (en) * 1984-12-03 1986-11-25 Rca Corporation Resonant switching apparatus using a cascode arrangement
US4677350A (en) * 1986-08-18 1987-06-30 Rca Corporation Raster width correction apparatus for multi scan frequency monitors
GB8626317D0 (en) * 1986-11-04 1986-12-03 Rca Corp Raster corrected horizontal deflection circuit
GB9218735D0 (en) * 1992-09-04 1992-10-21 Thomson Consumer Electronics Horizontal deflection waveform correction circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1072048B (en) * 1976-11-26 1985-04-10 Indesit CIRCUIT TO OBTAIN A SAW TOOTH CURRENT IN A COIL
JPS54127217A (en) * 1978-03-27 1979-10-03 Sony Corp Load driver circuit
DE2823345A1 (en) * 1978-05-29 1979-12-13 Licentia Gmbh Picture-width control for TV receiver - stabilises HV and corrects east-west cushion distortion without pump transistor or diode modulator
GB1589639A (en) * 1978-05-30 1981-05-13 Philips Electronic Associated Television line output circuit
US4251756A (en) * 1979-09-06 1981-02-17 Rca Corporation Regulated deflection circuit
US4329729A (en) * 1980-06-23 1982-05-11 Rca Corporation Side pincushion modulator circuit with overstress protection
US4305023A (en) * 1980-07-07 1981-12-08 Rca Corporation Raster distortion corrected deflection circuit
NL8006018A (en) * 1980-11-04 1982-06-01 Philips Nv CIRCUIT IN AN IMAGE DISPLAY FOR CONVERTING AN INPUT DC VOLTAGE TO AN OUTPUT DC VOLTAGE.

Also Published As

Publication number Publication date
DE3314470A1 (en) 1983-11-03
ATA148083A (en) 1988-01-15
GB2119209A (en) 1983-11-09
FR2525842A1 (en) 1983-10-28
FI77132C (en) 1989-01-10
GB2119209B (en) 1986-02-12
ES521481A0 (en) 1984-04-01
FI831287A0 (en) 1983-04-15
FI77132B (en) 1988-09-30
IT8320695A0 (en) 1983-04-20
DK163090B (en) 1992-01-13
DE3314470C2 (en) 1987-09-03
AU1356683A (en) 1983-10-27
IT1170130B (en) 1987-06-03
IT8320695A1 (en) 1984-10-20
AU559242B2 (en) 1987-03-05
FI831287L (en) 1983-10-24
ES8404107A1 (en) 1984-04-01
DK179883A (en) 1983-10-24
DK179883D0 (en) 1983-04-22
GB8310405D0 (en) 1983-05-25
DK163090C (en) 1992-06-09
SE8302127D0 (en) 1983-04-15
AT386502B (en) 1988-09-12
SE453241B (en) 1988-01-18
FR2525842B1 (en) 1989-12-15

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