Television – Cathode-ray tube display excessive voltage control
Patent
1995-07-07
1999-03-16
Hsia, Sherrie
Television
Cathode-ray tube display excessive voltage control
348730, 315380, H04N 320
Patent
active
058836691
ABSTRACT:
A device having a display device employing a cathode-ray tube and an electron beam includes an on-screen display memory for storing data used to display white on an entire screen of the cathode-ray tube, a circuit for supplying signals used to display white on the entire screen of the said display device employing the electron beam based on the data stored in the on-screen display memory, and a controller for outputting a signal indicative of a command for displaying white on the entire screen from the on-screen display memory in accordance with a de-energizing operation. The signals used to display white on an entire screen of the cathode-ray tube are output to the display device employing the electron beam after the device having the display device is de-energized. Displayed contents are erased by removing a residual high voltage in the display device employing the electron beam.
REFERENCES:
patent: 4723167 (1988-02-01), Griffey
patent: 5059961 (1991-10-01), Cheng
patent: 5184225 (1993-02-01), Heideboek et al.
patent: 5266870 (1993-11-01), Jang
patent: 5430596 (1995-07-01), Hamaguchi et al.
Baba Sumio
Hakamada Kunio
Hitachiya Noriyuki
Idenawa Yoshiyuki
Kubota Hirokatsu
Hsia Sherrie
Maioli Jay H.
Sony Corporation
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