Multiple functionality associated with a computer ON/OFF pushbutton switch

• US 20060053313A1
• Filed: 09/09/2004
• Published: 03/09/2006
• Est. Priority Date: 09/09/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Yi, Hyejung, Lodolo, Luca
• Granted Patent: US 7,251,726 B2
• Time in Patent Office: Days
• US Class Current: 713/300
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode

Abstract

The invention in one implementation encompasses a computer having an operating system and a power ON/OFF pushbutton switch. A microcontroller is coupled to receive ON/OFF information generated by the pushbutton switch. Responsive to receiving the ON/OFF information, the microcontroller generates a command causing the operating system to cause the computer to toggle between sleep and awake states.

Claims

1. A computer having an operating system comprising:

a power ON/OFF pushbutton switch;

a microcontroller coupled to receive ON/OFF information generated by the pushbutton switch;

responsive to receiving the ON/OFF information, the microcontroller generates a command to cause the computer to toggle between sleep and awake states causing the operating system the change from one of the sleep and awake states to the other of the sleep and awake states.

2. The computer of claim 1 further comprising a universal serial bus, USB, interface system coupled to the microcontroller, the USB interface system generating a USB command in response to receiving the microprocessor generated command, the USB interface system transmitting the USB command to an input of the operating system where the USB command comprises an instruction previously defined in the operating system to cause the operating system to toggle the computer from one of the sleep and awake states to the other of the sleep and awake states.

3. The computer of claim 2 wherein the USB interface system transmits the USB command in a format containing a human interface device command.

4. The computer of claim 1 further comprising an input/output chip coupled to the pushbutton switch to receive the ON/OFF information generated by the pushbutton switch, the input/output chip having a first output for carrying a power ON/OFF command coupled to the computer to effectuate the initial powering up of the computer and powering down of the computer during a time frame prior to drivers of the operating system having been loaded.

5. The computer of claim 4 wherein the input/output chip further has a second output for carrying a power down command coupled to the computer to effectuate the powering down of the computer after the drivers of the operating system have been loaded upon the input/output chip sensing that the pushbutton switch has been continuously in the OFF position for 4 seconds.

6. The computer of claim 2 further comprising an input/output chip coupled to the pushbutton switch to receive the ON/OFF information generated by the pushbutton switch, the input/output chip having a first output for carrying a power ON/OFF command coupled to the computer to effectuate the initial powering up of the computer and powering down of the computer during a time frame prior to drivers of the operating system having been loaded.

7. The computer of claim 6 wherein the input/output chip further has a second output for carrying a power down command coupled to the computer to effectuate the powering down of the computer after the drivers of the operating system have been loaded upon the input/output chip sensing that the pushbutton switch has been continuously in the OFF position for 4 seconds.

8. The computer of claim 1 wherein the microcontroller is responsive for generating the command because the computer to toggle between sleep and awake states only after a power button driver for the operating system has been loaded as part of a boot process of the computer.

9. The computer of claim 2 wherein the microcontroller is responsive for a generating the command because the computer to toggle between sleep and awake states only after a power button driver for the operating system has been loaded as part of a boot process of the computer.

10. A computer having an operating system comprising:

a switch means operable by the user for generating ON/OFF control information;

first means coupled to the switch means for controlling the powering ON and powering OFF of the computer in response to the ON/OFF control information;

second means coupled to the switch means for generating a sleep command and a wake-up command in response to the ON/OFF control information after a power button driver for the operating system has been loaded during boot-up processing, the second means transmitting one of the sleep and wake-up commands to the operating system to effectuate a change of the computer from one of a sleep and awake state to the other of the sleep and awake state.

11. The computer of claim 10 wherein the second means further comprises means for generating a universal serial bus (USB) output signal for carrying the sleep and wake-up commands.

12. The computer of claim 10 wherein the sleep and wake-up commands are in a human interface device format.

13. The computer of claim 10 wherein the first means further comprises a first output for carrying a power ON/OFF command coupled to the computer to effectuate the initial powering up of the computer and powering down of the computer during a time frame prior to drivers of the operating system having been loaded.

14. The computer of claim 13 wherein the first means further comprises a second output for carrying a power down command coupled to the computer to effectuate the powering down of the computer after the drivers of the operating system have been loaded upon the first means sensing that the switch means has been continuously in the OFF position for 4 seconds.

15. The computer of claim 11 wherein the first means further comprises a first output for carrying a power ON/OFF command coupled to the computer to effectuate the initial powering up of the computer and powering down of the computer during a time frame prior to drivers of the operating system having been loaded.

16. The computer of claim 15 wherein the first means further comprises a second output for carrying a power down command coupled to the computer to effectuate the powering down of the computer after the drivers of the operating system have been loaded upon the first means sensing that the switch means has been continuously in the OFF position for 4 seconds.

17. A method for using a power ON/OFF pushbutton switch of a computer to derive control of additional computer functionality comprising the steps of:

loading a pushbutton driver for an operating system of the computer;

following the loading step, sensing whether the pushbutton switch is depressed and released by the user;

in response to sensing a depression and release of the pushbutton switch, generating and sending a command to the operating system to cause the operating system to toggle the computer from one of a sleep and awake state to the other of the sleep and awake state.

18. The method of claim 17 wherein the loading of the pushbutton driver is carried out as part of the boot-up process during an initial powering up of the computer.

19. The method of claim 17 further comprising the steps of sensing whether the pushbutton switch is depressed and released by the user prior to the loading of the pushbutton driver, and upon sensing that the pushbutton switch is depressed and released by the user prior to the loading of the pushbutton driver generating a power down command causing the computer to power down.

20. The method of claim 17 further comprising the steps of sensing whether the pushbutton switch is depressed continuously in an OFF position for 4 seconds by the user following the loading of the pushbutton driver, and upon sensing that the pushbutton switch is depressed continuously in the OFF position for 4 seconds generating a power down command coupled to the computer to effectuate the powering down of the computer.

21. An article, comprising:

one or more computer-readable signal-bearing media; and

means in the one or more media for loading a pushbutton driver for an operating system of a computer;

means in the one or more media for sensing whether the pushbutton switch is depressed and released by the user following the loading of the pushbutton driver;

means in the one or more media for generating and sending a command to the operating system to cause the operating system to toggle the computer from one of a sleep and awake state to the other of the sleep and awake state in response to sensing a depression and release of the pushbutton switch.

22. The article of claim 21 further comprising means in the one or more media for sensing whether the pushbutton switch is depressed and released by the user prior to the loading of the pushbutton driver, and upon sensing that the pushbutton switch is depressed and released by the user prior to the loading of the pushbutton driver generating a power down command causing the computer to power down.

23. The article of claim 22 further comprising means in the one or more media for sensing whether the pushbutton switch is depressed continuously in an OFF position for 4 seconds by the user following the loading of the pushbutton driver, and upon sensing that the pushbutton switch is depressed continuously in the OFF position for 4 seconds generating a power down command coupled to the computer to effectuate the powering down of the computer.