Electrical computers and digital processing systems: support – Computer power control – Power conservation
Patent
1997-12-22
2000-07-18
Auve, Glenn A.
Electrical computers and digital processing systems: support
Computer power control
Power conservation
713324, 713300, G06F 132
Patent
active
060922060
ABSTRACT:
A power supply control mechanism for a display device automatically controls power supply according to the operation of a computer, and includes: an oscillating circuit generating a pulse of a given cycle; an oscillating circuit operation sensor monitoring whether or not the oscillating circuit operates; a power supply sensor outputting a logical product of an output pulse of the oscillating circuit operation sensor according to whether or not the display device is turned on; a digital/analog converter converting an output of the power supply sensor into an analog signal; a power switching unit which switches according to an output of the digital/analog converter; and a pulsewidth modulation integrated circuit for controlling a pulse duty ratio of the power applied to each circuit of the display device according to an output of the power switching unit.
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patent: 5262933 (1993-11-01), Shyi-hon
patent: 5375245 (1994-12-01), Solhjell et al.
patent: 5481732 (1996-01-01), Shahbazi
patent: 5483154 (1996-01-01), Chen
patent: 5579252 (1996-11-01), Huang
patent: 5615376 (1997-03-01), Ranganathan
patent: 5808693 (1998-09-01), Yamashita et al.
Auve Glenn A.
Bushnell Esq. Robert E.
Samsung Electronics Co,. Ltd.
Vo Tim
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