Electrical computers and digital processing systems: support – Computer power control – Power conservation
Patent
1997-03-10
1999-08-31
Sheikh, Ayaz R.
Electrical computers and digital processing systems: support
Computer power control
Power conservation
713320, 345211, 345212, G06F 132
Patent
active
059448300
ABSTRACT:
An apparatus for controlling the power management of a display monitor includes: a switching circuit provided in a power supply line between one output of a power supplying transformer and a heater of a color display tube for directly switching off the power supply line when the monitor enters the power-off mode. Also, a mode indicator may also be provided for indicating the power-off mode of the monitor. A microcomputer operates in response to the power-off mode to generate a high-level control signal supplied to the switching circuit and to the mode indicator. Also, a continuous pulse train signal having a predetermined on/off pulse duration is generated, representing the power-off mode. When both a high level control signal and the pulse train signal are supplied to the mode indicator, a power-off mode indicating operation using one LED is possible.
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Hong Seung-Cheol
Jang Ki-Young
Bushnell Esq. Robert E.
Dharia Rupal D.
Samsung Electronics Co,. Ltd.
Sheikh Ayaz R.
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