Cathode ray tube device and a television set using the same

Details Cathode ray tube device and a television set using the same Cathode ray tube device and a television set using the same

2005-07-12

2005-07-12

Vu, David (Department: 2828)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

C315S368280, C313S439000, C313S440000

Reexamination Certificate

active

06917168

ABSTRACT:
Sensitivity of a velocity modulation device is increased and noise such as a leakage magnetic field and a leakage electric field from the device are reduced to thereby lower power consumed by the device. A cathode ray tube device and a television set each include a velocity modulation device on a cathode side of a deflection yoke. All or part of the circumference of a velocity modulation coil to modulate scan beam velocity is covered with material having an initial permeability of at least 10 at 2 MHz.

REFERENCES:
patent: 3714500 (1973-01-01), Kaashoek
patent: 5260627 (1993-11-01), Yokota et al.
patent: 5592045 (1997-01-01), Dossot et al.
patent: U-5-33448 (1993-04-01), None
patent: A-5217517 (1993-08-01), None
patent: A-8-50868 (1996-02-01), None
patent: A-9-182098 (1997-07-01), None
patent: A-10-255689 (1998-09-01), None

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