S-shaped correction capacitor switching device for automatic tra

Details S-shaped correction capacitor switching device for automatic tra S-shaped correction capacitor switching device for automatic tra

1991-01-25

1992-10-13

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, G09G 100, H01J 2970

Patent

active

051554178

ABSTRACT:
An S-shaped correction capacitor switching devices are applied to automatic tracking monitors. An automatic tracking monitor is a monitor display device which can cope with various horizontal frequencies to be capable of being connected to various types of personal computers. The control means judges the frequency of a horizontal synchronizing signal of a device being handled, and based on the result of the judgment it decides the combination of capacitors to be connected to a deflection coil. Furthermore, it adjusts the combination of capacitors corresponding to adjustment data, thereby the distortion on an image caused by the dispersion of capacitance values among individual capacitors can be prevented.

REFERENCES:
patent: 4501995 (1985-02-01), Olmstead et al.
patent: 4705993 (1987-11-01), Kashiwagi
patent: 4761586 (1988-08-01), Wharton
patent: 4789811 (1988-12-01), Hulshof
N. Matsuo et al., "A 14" Digital-Scan Colour-Display Monitor, MITSUBISHI ELECTRIC ADVANCE, vol. 42, Mar. 1988, pp. 18-21.

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