Circuit for adjusting a horizontal center of a raster for a monitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 18, 2000
Grant Date -
N/A
app pub date -
May 28, 1998
filing date -
Jun 26, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a circuit for adjusting a horizontal center of a raster displayed on a monitor CRT, which includes a current generating circuit which can control an amount of a direct current flowing through a horizontal deflection yoke of the monitor based on a control voltage, a first voltage, and a second voltage. A control part generates the control voltage in response to a center adjustment signal. A voltage generating circuit generates the first and second voltages, respectively. The first voltage has a higher potential than that of a B.sup.+ voltage which is applied to the horizontal deflection yoke, and the second voltage has a lower potential than that of the B.sup.+ voltage. The current generating circuit either generates a first current flowing into the horizontal deflection yoke to increase the direct current or a second current flowing out therefrom to decrease the direct current, such that the horizontal center of the raster is controlled.
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