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Title:
LANDING CORRECTION DEVICE
Document Type and Number:
Japanese Patent JPH05316525
Kind Code:
A
Abstract:

PURPOSE: To provide an automatic landing correction device by which deterioration in color purity caused by deformation of a shadow mask or an effect of an undesired magnetic field or the like is corrected with high accuracy in a color television receiver.

CONSTITUTION: A cylindrical X axis direction correction coil 7 and a cylindrical Y axis direction correction coil 8 whose correction magnetic field axes are orthogonal to each other being components of the landing correction means are used as a pair, and they are arranged to a cathode ray tube neck section so that the directions of the magnetic fields generated by the said two coils are coincident with directions of the X and Y axes and the landing correction means is provided with a drive section 3 to apply a correction signal to the landing correction means and a control section 4 controlling the drive section 3.


Inventors:
KITADA KATSUHISA
INOUE YASUNORI
Application Number:
JP12023792A
Publication Date:
November 26, 1993
Filing Date:
May 13, 1992
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N9/29; (IPC1-7): H04N9/29
Attorney, Agent or Firm:
Akira Kobiji (2 outside)



 
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