JP2777233B2 - Portable computer and suspend / resume processing method thereof - Google Patents

Description

The present invention relates to a portable computer having a resume function and a suspend / resume processing method thereof.

(Prior Art) In the field of personal computers, personal computers of the type called laptops, which are small, lightweight and portable, have become widespread in place of the conventional desktop type. Usually, a laptop type personal computer of this type uses a so-called flat type display unit such as a plasma display and an LCD as a display unit, and the flat type display unit is mounted on a main body having a keyboard. When not in use, it has a structure that covers a keyboard and the like provided on the main body via a hinge mechanism. In addition, many laptop personal computers of this type are driven by a battery. Recently, small-sized, large-capacity batteries have been built in, and some have come to be able to drive a hard disk. This type of personal computer is equipped with a so-called resume processing function as a standard function, which can be executed continuously from the state immediately before the power is turned off when the power is turned off during operation. In order to realize the resume process, a so-called suspend process is required to save information necessary for the resume process to a specific location in the memory before turning off the power of the system.

However, in this type of conventional portable computer, even when the display unit serving as a cover is closed when the power is turned on, the power of the apparatus main body is kept on. The resume process is effective only when the resume mode is set, and the resume process is performed only when the resume mode is set when the power switch is turned on.

(Problems to be Solved by the Invention) As described above, in the conventional portable computer, the power remains on even when the display unit serving as the lid is closed while the power is on. If the power is turned off once with the function released, the program processing state before the power is turned off disappears, and the power must be restarted from the beginning. Operation wasted.

The present invention has been made in view of the above circumstances, and in a portable computer in which a flat panel display unit is provided to be freely opened and closed via a hinge mechanism on a main body provided with a keyboard, the opening and closing operation of the flat panel display unit is accompanied. And a portable computer for performing power on / off and suspend / resume processing, and a suspend / resume processing method thereof.

[Configuration of the Invention] (Means for Solving the Problems) A portable computer according to the present invention includes a main body, a flat panel display rotatably connected to the main body via a hinge mechanism, and a storage section for storing data. Detects whether the flat panel display is closed on the main unit or opened from the main unit, and detects that the flat panel display is closed while the power is on. The information necessary to reproduce the information is stored in the storage unit and the power is turned off.After the power is turned off, when it is detected that the flat panel display is opened, the power is turned on and stored in the storage unit. Means for restoring the information and bringing the main body to a state immediately before the power is turned off.

(Operation) In the present invention, when it is detected that the flat panel display is closed while the power is on, information necessary to reproduce the main body in the state immediately before the power is turned off when the power is turned on is stored in the storage unit. Turn off the power from
Thereafter, when it is detected that the flat panel display is closed, the power is turned on, the information stored in the storage unit is restored, and the main body is brought to a state immediately before the power is turned off.

When the flat panel display is closed during use, the power is turned off after the suspend processing, and when the flat panel display is opened, the power is turned on and the resume processing is performed, and the state immediately before closing the flat panel display is reproduced. For this reason, forgetting to turn off the power can be prevented, and waste of operation due to overlapping operations when turning on the power (power on) can be eliminated.

(Example) Hereinafter, an example of the present invention is described with reference to drawings.

 FIG. 1 is a block diagram showing an embodiment of the present invention.

In the drawing, reference numeral 1 denotes a display switch (DSW), which is a mechanical switch that is turned on / off in conjunction with opening and closing of a flat panel display also serving as a lid of the apparatus main body. When the flat panel display 5 is closed, the display switch 1 is turned on to output a close detection signal (CC), and when the flat panel display 5 is opened, the display switch 1 is turned off to output an open detection signal (CO). It shall be output. Reference numeral 2 denotes a power supply device realized by an intelligent power supply (IPS) having a built-in microprocessor, which receives a close detection signal (CC) of a display switch 1 accompanying a closing operation of a flat panel display, and treats the treatment device 3 of the device main body. Issues a power-off request (RQPOFF) to the Reference numeral 3 denotes a processing unit (SYSTEM) of the apparatus main body, which is suspended (Suspen) by a power-off request (RQPOFF) issued from the power supply unit 2.
d) Execute the processing, and issue a power-off command (POF
F) is issued (see FIG. 2A), and a resume process is executed when the power is turned on (see FIG. 2B). Reference numerals 4 and 5 denote man-machine interface devices respectively provided on the apparatus main body, 4 denotes a keyboard (KB) fixed to the apparatus main body, and 5 denotes a lid provided on the apparatus main body via a hinge mechanism so as to be freely opened and closed. It is a flat panel display (FDP) that doubles as a body. The flat panel display 5 is opened and rotated so as to stand up from the apparatus main body when used, is set at a position where the user can easily see, and is closed and rotated when not in use to cover the keyboard 4.

FIGS. 2 (a) and 2 (b) show the processing flow associated with the opening and closing operations of the flat panel display of the processing apparatus 3 in the embodiment of the present invention. A flowchart showing a power-off control process executed in response to a close detection signal (CC) of the display switch 1 accompanying the operation, and FIG. 9 is a flowchart illustrating a power-on control process executed in response to a command (CO).

In the power-off control process shown in FIG. 2 (a), the power supply device 2 is controlled by the close detection signal (CC) of the display switch 1.
Sends a power-off request (RQPOFF) to the processing device 3, and after the processing device 3 performs a suspend process, the power-off command (POFF) is sent to the power supply device 2.
To turn off the power of the apparatus main body.

In the power-on control processing shown in FIG. 2 (b), the power supply 2 turns on the power of the apparatus main body in response to the open detection signal (CO) of the display switch 1, and the processing apparatus 3 resumes with the power-on. (Resume) The state before the apparatus body is closed and the flat panel display 5 is closed by performing the processing.
That is, the state is set immediately before the power is turned off.

 Here, the operation of the above embodiment will be described.

First, when the flat panel display 5 is closed while the power is on, the display switch 1 is turned on, and a close detection signal (CC) is input from the display switch 1 to the power supply device 2. When the power supply device 2 receives the close detection signal (CC) from the display switch 1, it issues a power-off request (RQPOFF) to the processing device 3.
Processing unit 3 requests power off from power supply unit 2 (RQPOFF)
When the power supply apparatus 2 receives the power off instruction, the power supply apparatus 2 issues a power off command (POFF). The suspend process refers to a process of saving information necessary for the resume process to a specific location in the memory before shutting off the power supply of the processing device 3. When the power supply device 2 receives the power-off command (POFF) from the processing device 3, the power supply of the device main body is cut off (turned off). The power supply device 2 has a built-in microprocessor and has an intelligent function such as detection of a remaining capacity of the power supply and display of a power supply state according to the detection signal. The power supply device 2 is turned on / off by a command issued from the processing device 3.

When the flat panel display 5 is opened, the display switch 1 is turned off, and an open detection signal (CC) is input from the display switch 1 to the power supply device 2.
When the power supply device 2 receives the open detection signal (CC) from the display switch 1, the power supply of the device main body is turned on.
When the power is turned on, the processing device 3 performs a resume process to bring the device main body into a state immediately before the power is turned off.

With the power on / off and suspend / resume processing functions linked to the opening and closing of the flat panel display 5, when the flat panel display 5 is closed during use, the power supply of the apparatus main body is automatically turned on after the suspend processing. When the power is turned off (turned off), the power is turned on (turned on) when the power is turned on, the resume process is executed, and the state immediately before closing the flat panel display 5 (the state immediately before turning off the power) is reproduced. It is possible to prevent a waste of operation due to an overlapping operation when the power is turned on.

[Effects of the Invention] As described in detail above, according to the present invention, when it is detected that the flat panel display is closed during power-on, when the power is turned on again, the main body is reproduced in the state immediately before the power-off. The necessary information was stored in the storage unit, and then the power was turned off. Then, when it was detected that the flat panel display was closed, the power was turned on and stored in the storage unit. By restoring the information and returning the main body to the state immediately before the power is turned off, it is possible to prevent the power from being forgotten to be turned off, and to eliminate waste of operation due to the redundant operation when the power is turned on.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are flowcharts each showing a processing flow of the above embodiment. 1. Display switch (DSW) 2. Power supply (IPS) 3. Processing unit (SYSTEM) 4. Keyboard (KB) 5. Flat panel display (FD)
P).

Claims (5)

(57) [Claims] 1. A main body, a flat panel display rotatably connected to the main body via a hinge mechanism, a storage unit for storing data, and whether the flat panel display is closed on the main body or not. Detecting whether the flat panel display has been closed while the power is on and detecting that the flat panel display has been closed during power-on, stores the information necessary for reproducing the main body to the state immediately before the power-off when the power is turned on again. After the power is turned off, when the flat panel display is detected to be opened, the power is turned on to restore the information stored in the storage unit and the main unit is turned off. Means for setting the state immediately before power-off. 2. A main body, a flat panel display rotatably connected to the main body via a hinge mechanism, a storage unit for storing data, and whether the flat panel display is closed on the main body or not on the main body. Means for detecting whether or not the flat panel display has been closed during power-on by the detecting means, and when the power is turned on, the main body is reproduced to a state immediately before power-off. Means for storing necessary information in the storage unit, means for turning off the power of the main body after the information storage by the storage means is completed, and after the power is cut off, Means for turning on the power of the main body when it is detected that the body has been opened; and Means for restoring the stored information to bring the main unit into a state immediately before power-off. 3. A main body, a flat panel display rotatably connected to the main body via a hinge mechanism, a storage unit for storing data, and whether the flat panel display is closed on the main body or not. Means for detecting whether or not the flat panel display is closed during power-on by the detection means, means for outputting a power-off request in response to the fact that the flat-panel display is closed during power-on, Storage means for storing, in response to the output of the power-off request signal by the means, information necessary for reproducing the main body to the state immediately before the power-off when the power is turned on again in the storage unit, and outputting a power-off command. Means for shutting down the power supply of the main body in response to the output of the power shutoff command by the storage means; and Means for turning on the power of the main body in response to the detection that the flat panel display is opened, and restoring the information stored in the storage unit after turning on the power by the turning on means. Means for bringing the main body into a state immediately before power-off. 4. A main body, a flat panel display rotatably connected to the main body via a hinge mechanism, a storage unit for storing data, and whether the flat panel display is closed on the main body or not. A suspend / resume processing method for a portable computer having means for detecting whether or not the flat panel display has been closed from the main body by the detecting means. Sometimes, the information necessary to reproduce the main body in the state immediately before the power was turned off was stored in the storage unit, and then the power was turned off. After the power was turned off, the flat panel display was opened from above the main body by the detection means. When it is detected, the information stored in the storage unit after turning on the power of the main body is Source to suspend / resume processing method of a portable computer, characterized in that for reproducing the main body in a state immediately before the power-off. 5. A main body, a flat panel display rotatably connected to the main body via a hinge mechanism, a storage unit for storing data, and whether the flat panel display is closed on the main body or not. A suspend / resume processing method for a portable computer comprising: means for detecting whether the flat panel display has been opened from the front; and means for controlling power on / off of the main body. When the information is detected, the information necessary to reproduce the main unit in the state immediately before the power is turned off when the power is turned on is stored in the storage unit, and after the information storage is completed, the power of the main unit is turned off. After that, when the detecting means detects that the flat panel display is opened, the power of the main body is turned off. ON and, after power suspend / resume processing method of the portable computer that restoring the information stored in the storage unit, characterized in that the state immediately before the power cut off the body.