Bus controlled electrode voltage for a cathode ray tube

Details Bus controlled electrode voltage for a cathode ray tube Bus controlled electrode voltage for a cathode ray tube

1993-09-03

1995-10-31

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315381, 315383, G09G 104, H01J 2952

Patent

active

054632889

ABSTRACT:
A screen grid voltage or a focus voltage for a cathode ray tube is controlled via a digital-to-analog converter. The voltage variation range of the screen grid or focus voltage that can be obtained for the entire variation range of an output signal of the digital-to-analog converter is not significantly larger than that required for the type of cathode ray tube that is utilized.

REFERENCES:
patent: 4494137 (1985-01-01), Freyberger et al.
patent: 4607288 (1986-08-01), Freyberger
patent: 4722005 (1988-01-01), Ledenbach
patent: 4724364 (1988-02-01), Newton
patent: 4835668 (1989-05-01), Palm et al.
patent: 5182497 (1993-01-01), Yamate et al.
patent: 5216336 (1993-06-01), Rodriguez-Cavazos
Manual entitled VCU 2136 Video Codec, dated Mar. 1, 1990, published by ITT Semiconductors.
Yamamoto et al., "A New Video Processor for Color TV", 1988 and publ. by IEEE.

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