GB2008905A - Circuit for east-west pincushion correction in a colour television receiver - Google Patents

Circuit for east-west pincushion correction in a colour television receiver

Info

Publication number
GB2008905A
GB2008905A GB7835767A GB7835767A GB2008905A GB 2008905 A GB2008905 A GB 2008905A GB 7835767 A GB7835767 A GB 7835767A GB 7835767 A GB7835767 A GB 7835767A GB 2008905 A GB2008905 A GB 2008905A
Authority
GB
United Kingdom
Prior art keywords
circuit
east
television receiver
colour television
pincushion correction
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.)
Granted
Application number
GB7835767A
Other versions
GB2008905B (en
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB2008905A publication Critical patent/GB2008905A/en
Application granted granted Critical
Publication of GB2008905B publication Critical patent/GB2008905B/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
    • H04N3/233—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

The circuit employs a single stage direct and alternating voltage amplifier having an adjustable reactive negative feedback coupling for alternating voltages arranged so that the shape of the waveform appearing at the output of the amplifier can be altered by adjusting the feedback coupling. The amplitude of the waveform and the d.c. level of the output are also separately adjustable. <IMAGE>
GB7835767A 1977-09-12 1978-09-06 Circuit for east west cushion correction in a colour television receiver Expired GB2008905B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772741012 DE2741012C2 (en) 1977-09-12 1977-09-12 Circuit for east-west pillow correction in a color television receiver

Publications (2)

Publication Number Publication Date
GB2008905A true GB2008905A (en) 1979-06-06
GB2008905B GB2008905B (en) 1982-03-24

Family

ID=6018742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835767A Expired GB2008905B (en) 1977-09-12 1978-09-06 Circuit for east west cushion correction in a colour television receiver

Country Status (4)

Country Link
JP (1) JPS5451316A (en)
AT (1) AT359570B (en)
DE (1) DE2741012C2 (en)
GB (1) GB2008905B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406224A1 (en) * 1983-02-21 1984-08-23 Rca Corp., New York, N.Y. Circuit for changing the image size of a television receiver

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331567A1 (en) * 1983-09-01 1985-03-21 Loewe Opta Gmbh, 8640 Kronach Circuit for the East-West pincushion correction in a colour television receiver
US6237579B1 (en) * 1999-01-26 2001-05-29 Somender Singh Design to improve turbulence in combustion chambers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417308Y2 (en) * 1973-05-19 1979-07-04
GB1530661A (en) * 1976-01-16 1978-11-01 Philips Nv Line sawtooth current generators
FI781059A (en) 1977-04-14 1978-10-15 Rca Corp KRETS FOER KORRIGERING AV RASTERDISTORSION
DE2724552A1 (en) * 1977-05-31 1978-12-14 Licentia Gmbh Circuit for east-west cushion correction in TV set - includes capacitor whose variable capacitance depends on correction voltage frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406224A1 (en) * 1983-02-21 1984-08-23 Rca Corp., New York, N.Y. Circuit for changing the image size of a television receiver

Also Published As

Publication number Publication date
JPS5451316A (en) 1979-04-23
DE2741012A1 (en) 1979-03-22
AT359570B (en) 1980-11-25
JPS6150427B2 (en) 1986-11-04
GB2008905B (en) 1982-03-24
DE2741012C2 (en) 1982-09-30
ATA653978A (en) 1980-04-15

Similar Documents

Publication Publication Date Title
ES477072A1 (en) CRT Beam current control apparatus
EP0240141A3 (en) S-correction circuit for a video display
GB2008905A (en) Circuit for east-west pincushion correction in a colour television receiver
JPS54133822A (en) Correction circuit for pincushion distortion
JPS5432219A (en) Vertical deflection circuit
FI860558A0 (en) MED AVSEENDE PAO FISKMAOSVINGSDISTORSION KORRIGERAD DEFLEKTIONSKRETS FOER ETT PLANT BILDROER MED RAETVINKLIGA HOERN.
JPS5418759A (en) Optical scanner
AU521812B2 (en) Raster distortion correction circuit
JPS5713879A (en) Projection type color television device
JPS5416119A (en) Dynamic focusing circuit
ES469489A1 (en) East-west pincushion distortion correction circuit - has output of diode modulator in series with supply voltage for TV colour receiver
JPS5765656A (en) Limited view diffraction image device
ATE60859T1 (en) CIRCUIT ARRANGEMENT FOR ELIMINATION OF GEOMETRY DISTORTION.
JPS5412518A (en) Scanning velocity modulating circuit
JPS5388524A (en) Velocity modulation type contour correcting device
JPS533119A (en) Pincushion correction circuit
GB932050A (en) Improvements in or relating to television scanning circuit arrangements
JPS53112610A (en) Deflection circuit
JPS5242023A (en) Optical reader with distortion corrcting set
JPS5443418A (en) Time axis error correcting device
JPS5328370A (en) Image conversion tube unit
GB897853A (en) Improvements in or relating to television cameras
JPS57180060A (en) Astigmation correction procedure and its apparatus in scanning electron microscope and its analogous equipment
FR2393487A1 (en) Multi-standard line scanning stage for TV set - has voltage dependent tangent correction capacitor with bias varied by standards change switch
IT1163612B (en) CIRCUIT PROVISION FOR THE CORRECTION OF EAST-WEST BEARING DISTORTIONS

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee