Cathode ray tube phosphor protection

Details Cathode ray tube phosphor protection Cathode ray tube phosphor protection

2005-05-17

2005-05-17

Lee, Wilson (Department: 2821)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

C315S382100, C315S370000

Reexamination Certificate

active

06894445

ABSTRACT:
A cathode ray tube video display comprises a cathode ray tube (CRT) for displaying a video signal (Vin) coupled thereto. A cathode ray tube electron beam blanker (201) is coupled to the cathode ray tube (CRT) and is responsive to a blanking trigger signal (GK) for blanking an electron beam (e) within the cathode ray tube (CRT). A blanking controller (200) is coupled to the cathode ray tube electron beam blanker (201) and generates the blanking trigger signal (Gk) for controlling electron beam blanking, wherein the electron beam (e) is blanked for different durations in accordance with one of a hot and cold start condition.

REFERENCES:
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patent: 5043639 (1991-08-01), Gurley et al.
patent: 5130615 (1992-07-01), George
patent: 5345267 (1994-09-01), Flickner
patent: 5369341 (1994-11-01), Wilber
patent: 5729092 (1998-03-01), Gorog et al.
patent: 0 975 151 (2000-01-01), None

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