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Auxiliary alarm clock system for a personal computer

A computer system, computer technology, applied in the direction of calculation, generation/distribution of signals, instruments, etc., can solve the problem of no indicator time or timekeeping opening, etc.

Inactive Publication Date: 2005-03-09
O2 MICRO INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Again, the system has no indicators to tell the current time or when the chime is on

Method used

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  • Auxiliary alarm clock system for a personal computer

Examples

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Embodiment Construction

[0010] figure 1 Shown is a block diagram of the chime clock integrated circuit 10 of the present invention. Integrated circuit 10 may include one or more of the following modular components.

[0011] 1) Host interface 12. The host interface provides a bus interface (eg, PCI bus, SMB system management bus, etc.) between the integrated circuit 10 and the personal computer system, and allows the personal computer system to control and read the integrated circuit 10 . The interface 12 can be a low pin count (Low Pin Count) type bus, a universal serial bus (USB), a system management bus (SMB) or any other system bus interface.

[0012] 2) Power control interface 14 . The power control interface 14 controls the system power of the personal computer. The Power Good signal serves as an input to the integrated circuit 10 and indicates whether power is available for the system bus or the PC system. In general, a power good signal is a signal indicative of the power status of a pers...

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Abstract

The present invention provides systems and methods to operate a PC as an alarm clock. An IC is provided to monitor the power status of PC and generate an alarm clock event at a preselected time. The alarm clock event includes a variety of operations, for example, powering on or off the PC system or controlling an AM / FM or TV module.

Description

[0001] This application claims priority to provisional application 60 / 475,887, filed June 4,2003. technical field [0002] The present invention relates to improvements in personal computers and, more particularly, to a timer-startable instant time clock for a personal computer which operates when the main system power is turned on or off. Background technique [0003] Conventional personal computer systems typically include a hardware / software integrated timekeeping clock system employing a real-time clock (RTC). This real time clock is controlled by the operating system. Recent operating systems (such as Microsoft's Windows(R)) allow the user to program a wake-up interrupt from which the real-time clock can be scheduled to power up the system. However, the design of this method is very complicated. For example, a separate power plane for the system board is required to allow the chipset to receive the real-time clock wake-up interrupt while the rest of the system is powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/14G06F1/32
CPCG06F1/14G06F1/3203
Inventor 林春喜詹姆斯·兰姆
Owner O2 MICRO INT LTD
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