JP4189702B2 - Program recording medium, control method for portable information processing device, and portable information processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a program recording medium, a control method for a portable information processing device, and a portable information processing device, and in particular, a program recording medium, a control method for a portable information processing device, and a method for suppressing power consumption, and The present invention relates to a portable information processing apparatus.
[0002]
[Prior art]
A portable personal computer supplies necessary power to each unit from a built-in battery. It has been proposed to provide a suspend mode (sleep mode) so that power can be supplied from the battery for as long as possible. This suspend mode is introduced, for example, as “Development of a new version of i386SL with enhanced power management function” on pages 106 to 111 of “Nikkei Electronics 1991.9.2 (no.535)”.
[0003]
When the user does not use the portable personal computer for a while, the user sets the suspend mode. When the suspend mode is set, the operation of the CPU is basically stopped in the portable personal computer. The supply of power to each unit is basically stopped except for the supply of power to some circuits that need to be backed up. As a result, wasteful power consumption of the battery is suppressed.
[0004]
When the suspend mode is set, the user cannot process predetermined information using the portable personal computer. For example, even if the portable personal computer has a function of playing a CD (Compact Disc), the CD cannot be played in a state where the suspend mode is set. To play the CD, the user needs to cancel the suspend mode. When the reproduction of the CD is instructed after canceling the suspend mode, a button icon necessary for reproducing the CD as shown in FIG. 9 is displayed on the LCD of the portable personal computer, for example. The user can play the CD by appropriately operating this button icon using a mouse or the like. When the CPU is released from the suspend mode, the CPU supplies power to the entire portable personal computer, so that the CD can be played.
[0005]
[Problems to be solved by the invention]
In this way, when a conventional portable personal computer plays a CD from a state in which the suspend mode is set, the suspend mode must be canceled, so that power is also supplied to parts that are not necessary for playing the CD. However, there is a problem that the battery power is consumed more than necessary and the battery cannot be used for a long time.
[0006]
This invention is made | formed in view of such a condition, suppresses that the electric power of a battery is consumed more than needed, and enables it to supply electric power from a battery for a long time. .
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a program recording medium comprising: a setting step for setting a mode in which the operation of the CPU of the portable information processing device is stopped from a state in which all of the portable information processing device is operating; When the mode to be stopped is set, the instruction to reproduce the information recording medium is detected in the limiting step for limiting the power supply from the battery to each part of the portable information processing apparatus and the mode for stopping the operation of the CPU. Necessary for playback of the information recording medium in the part where the power supply is restricted in the state of the mode in which the operation of the CPU is stopped when the information recording medium playback command is detected in the detection step. The power supply step for supplying power to the various parts and the mode for stopping the operation of the CPU are canceled, and power is supplied to each part from the battery. It is characterized by providing a program for executing a process including a releasing step for making everything operate .
[0008]
According to a fourth aspect of the present invention, there is provided a control method for a portable information processing device, wherein a setting step for setting a mode in which the operation of the CPU of the portable information processing device is stopped from a state in which all the portable information processing devices are operating When the mode for stopping the operation of the CPU is set, the step of restricting the power supply from the battery to each part of the portable information processing device and the reproduction of the information recording medium in the mode for stopping the operation of the CPU And a recording step of detecting the information recording medium, and when the information recording medium reproduction command is detected in the detection step, the information recording is performed in a mode in which the power supply is restricted in a mode in which the operation of the CPU is stopped. The portable information processing is performed by releasing the supply step for supplying power to the parts necessary for reproducing the medium and the mode for stopping the operation of the CPU to supply power to each part from the battery. A release step for bringing all of the logical devices into operation .
[0009]
According to a fifth aspect of the present invention, there is provided a portable information processing apparatus comprising: setting means for setting a mode for stopping the operation of the CPU of the portable information processing apparatus from a state in which all of the portable information processing apparatus is operating ; When a mode for stopping the operation is set, a restriction means for restricting the supply of power from the battery to each part of the portable information processing device, and a command for reproducing the information recording medium in the mode for stopping the operation of the CPU A detecting means for detecting, and when the information recording medium reproduction command is detected by the detecting means, the reproduction of the information recording medium in the portion where the power supply is restricted in a state of stopping the operation of the CPU. The power supply means for supplying power to the necessary parts and the mode for stopping the operation of the CPU are released, and power is supplied to each part from the battery so that all of the portable information processing devices can operate. And a release means .
[0010]
In the program recording medium according to claim 1, the method for controlling the portable information processing device according to claim 4, and the portable information processing device according to claim 5, information is transmitted in a mode in which the operation of the CPU is stopped. When a recording medium playback command is detected, power is supplied to a portion necessary for playback of the information recording medium in a portion where supply of power is restricted in a state where the operation of the CPU is stopped.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below, but in order to clarify the correspondence between each means of the invention described in the claims and the following embodiments, in parentheses after each means, The features of the present invention will be described with the corresponding embodiment (however, an example) added. However, of course, this description does not mean that each means is limited to the description.
[0012]
The portable information processing apparatus according to claim 5 is a setting means (for example, a diagram) that sets a mode in which the operation of the CPU of the portable information processing apparatus is stopped from a state in which all of the portable information processing apparatus is operating . 6 (step S3), and a restriction unit (for example, step S4 in FIG. 6) that restricts the supply of power from the battery to each part of the portable information processing device when the mode for stopping the operation of the CPU is set. In the mode in which the operation of the CPU is stopped, when the information recording medium reproduction command is detected by the detection means (for example, step S21 in FIG. 8) for detecting the information recording medium reproduction command and the detection means, in state of the mode for stopping the operation of the CPU, and supply means for supplying electric power to the portion necessary for the reproduction of the information recording medium of the portion where power supply is limited (for example, step S24 in FIG. 8), CPU of It is characterized by comprising release means for releasing all modes of the portable information processing device by releasing the mode for stopping the operation and supplying power to each part from the battery .
[0013]
1 to 3 show an external configuration of a portable personal computer to which the present invention is applied. As shown in these drawings, the portable personal computer 1 includes a main body 2 and an opening / closing part 11 that is openable and closable with respect to the main body 2. On the upper surface of the main body 2, there are provided a key 3 that is operated when inputting characters, symbols, and the like, and a touch pad 4 that is operated when moving a cursor or performing a confirmation process. A CD-ROM drive 5 is provided on the right side surface of the main body 2. The tray 6 of the CD-ROM drive 5 can be pulled out from the main body 2 to mount the CD-ROM 7 (FIG. 2). A jack 8 is provided on the left side surface of the main body 2 (FIG. 3) so that a plug 36 (FIG. 3) constituting the headphone system can be connected. Speakers 9L and 9R are disposed on the left and right sides of the upper surface of the main body 2.
[0014]
An LCD 12 is provided in front of the opening / closing unit 11, and predetermined characters and images are displayed on the LCD 12.
[0015]
FIG. 4 shows a more detailed configuration of the headphone system. In this headphone system, a plug 33 is connected to the jack 34 of the remote controller 31. Left and right headphones 31L and 31R are connected to the plug 33 via leads 35.
[0016]
A plug 36 is connected to the case 41 of the remote controller 31 via a lead 37. On the upper surface of the case 41, a DSP key 47 is provided in addition to an LCD 42 for displaying various information, a PLAY key 46 operated when commanding reproduction, and a STOP key 45 operated when commanding stop.
[0017]
Further, on the side surface of the case 41, a hold switch 48 is provided in addition to the FF key 43 operated when instructing a high-speed fast-forward operation and the REW key 44 operated when instructing a high-speed rewinding operation.
[0018]
FIG. 5 shows an internal configuration example of the portable personal computer 1. The CPU 61 executes various processes according to programs stored in the ROM 62. The RAM 63 and the hard disk 60 appropriately store data and programs necessary for the CPU 61 to execute various processes. The input / output interface 65 outputs data input from the CPU 61 via the bus 64 to the LCD 12 for display. The interface 65 also controls the power supply circuit 73 to control the supply of power from the power supply circuit 74 having the battery 75 to each unit.
[0019]
The interface 65 also detects an input from the touch pad 4 and outputs it to the CPU 61 via the bus 64. Similarly, when any one of the keys 3 is operated, the interface 65 outputs a signal corresponding to the operated key to the CPU 61 via the bus 64. A predetermined key of the keys 3 is a dedicated key 71 operated when playing a CD in the suspend mode or a suspend mode cancel key 72 operated when canceling the suspend mode, depending on the function assignment to the key. Yes.
[0020]
The interface 65 also includes a switch monitoring circuit 66 that monitors the operation of the dedicated key 71 of the keys 3 and the detection signal of the detection circuit 70. When the plug 36 is connected to the jack 8, the detection circuit 70 detects this and outputs a detection signal to the switch monitoring circuit 66. The switch monitoring circuit 66 outputs an interrupt signal to the CPU 61 via the bus 64 when the dedicated key 71 is operated or a detection signal is input from the detection circuit 70 in the suspend mode. The modem 69 is controlled by the CPU 61 via the interface 65, and exchanges data via a telephone line.
[0021]
The CD-ROM controller 67 controls the CD-ROM drive 5 and reproduces the CD-ROM 7 in response to a command input from the CPU 61. Data obtained as a result of reproduction is output from the CD-ROM controller 57 to the CPU 61 via the bus 64.
[0022]
When a CD on which normal music data is recorded is reproduced by the CD-ROM drive 5, the reproduced data is output to the audio circuit 68 and subjected to demodulation processing, error correction processing, and the like. In addition to being supplied to the speakers 9L and 9R, it is supplied to the headphones 31L and 31R via the jack 8.
[0023]
Next, with reference to the flowchart of FIG. 6, the process in the case of setting the suspend mode in the portable personal computer 1 will be described. First, in step S <b> 1, the user determines whether a file on the network is being used via the modem 69. If the file is being used, the process proceeds to step S2 to execute processing for saving the file in, for example, the hard disk 60. If the suspend mode is set, the connection with the network may be released. Even if the suspend mode is set, the file can be used when the suspend mode is released. If a file on the network is not used, the process of step S2 is skipped.
[0024]
Next, proceeding to step S3, the user commands and inputs a suspend mode. This input is performed by operating a predetermined key among the keys 3. For example, in Windows 95 (trademark), the “suspend” command is selected from the pull-down menu displayed by clicking the “start” button. The selection in this case is performed via the cursor by operating the touch pad 4.
[0025]
When the suspend mode is input, the CPU 61 sets the suspend mode in step S4. In the suspend mode, the CPU 61 controls the power supply circuit 73 via the interface 65 and stops supplying power to each unit. At this time, the CPU 61 is also stopped. Thereby, for example, nothing is displayed on the LCD 12, and the modem 69, the CD-ROM drive 5 and the like become unusable. The operation of the key 3 excluding the dedicated key 71 and the suspend mode cancel key 72 and the operation of the touch pad 4 are not accepted by the CPU 61. Of course, at this time, the CPU 61 cannot execute various application programs such as a word processor and a game.
[0026]
As described above, when the suspend mode is canceled in the state where the suspend mode is set, processing as shown in the flowchart of FIG. 7 is executed.
[0027]
That is, first, in step S <b> 11, the user operates the suspend mode cancel key 72 of the keys 3. When this operation is notified to the CPU 61 via the interface 65, the CPU 61 resumes execution in step S12 and cancels the suspend mode set up to that point. At this time, the CPU 61 controls the power supply circuit 73 via the interface 65 to supply necessary power to each unit. As a result, all the parts of the portable personal computer 1 become operable. Thus, the user can play a word processor or a game, or can access a predetermined server from the Internet via the modem 69. Of course, you can also play CD-ROMs.
[0028]
Next, a process for reproducing a CD in the suspend mode will be described with reference to a flowchart of FIG. When attempting to play a CD in the suspend mode, the user operates a dedicated key 71 for instructing a CD drive operation among the keys 3 in step S21. When the dedicated key 71 is operated, the switch monitoring circuit 66 detects this. Alternatively, when the plug 36 is connected to the jack 8, the detection circuit 70 detects this and outputs a detection signal to the switch monitoring circuit 66. In any case, the switch monitoring circuit 66 outputs an interrupt signal to the CPU 61 in step S22. At this time, the CPU 61 resumes execution in step S23 in response to the interrupt signal.
[0029]
Then, in step S24, the CPU 61 supplies power only to a portion necessary for reproducing the CD among the respective portions of the portable personal computer 1. That is, the CPU 61 controls the power supply circuit 73 via the interface 65 to supply power to the CD-ROM controller 67, the CD-ROM drive 5, and the audio circuit 68. Thereafter, the process proceeds to step S25, where the CPU 61 stops execution and enters a low power consumption mode.
[0030]
Next, proceeding to step S26, the CPU 61 stands by in the low power consumption mode while stopping execution until a predetermined one of various keys provided in the remote controller 31 is operated. When a predetermined key of the remote controller 31 is operated, the operation signal is supplied to the switch monitoring circuit 66 via the plug 36, the jack 8, and the detection circuit 70. When the operation signal is input, the switch monitoring circuit 66 outputs an interrupt signal to the CPU 61 in step S27. At this time, in step S28, the CPU 61 resumes execution.
[0031]
Next, the CPU 61 proceeds to step S29, and determines whether or not the operated key is the STOP key 45 for instructing to end the reproduction of the CD. If the operated key is not the STOP key 45, the process proceeds to step S30 to execute processing corresponding to the operated key.
[0032]
For example, when the PLAY key 46 is operated, the CPU 61 requests the CD-ROM controller 67 to play a CD via the bus 64. When receiving this request from the CPU 61, the CD-ROM controller 67 controls the CD-ROM drive 5 to reproduce the CD. The signal reproduced from the CD is output to the audio circuit 68, subjected to demodulation processing, error correction processing, and the like, and then output from the speakers 9L and 9R. Alternatively, the reproduction signal output from the audio circuit 68 is output from the headphones 31L and 31R via the jack 8, the plug 36, and the remote controller 31.
[0033]
Thereafter, the process returns to step S25, the CPU 61 stops the execution, and waits for the next key operation in step S26.
[0034]
If it is determined in step S29 that the operated key is the STOP key 45, the process proceeds to step S31, and the CPU 61 stops supplying power to the CD-ROM controller 67, the CD-ROM drive 5, and the audio circuit 68. Let That is, in step S24, the supply of power to the circuit to which power is supplied is stopped again.
[0035]
As described above, in this embodiment, in the state where the suspend mode is set, power is supplied only to a portion necessary for playing the CD, so the suspend mode is canceled, Compared with the case where a CD is played by supplying power to all parts of the portable personal computer 1, it is possible to reduce the power consumption during CD playback. In addition, since the CPU 61 is in the execution stop state even during the CD reproduction, the power consumption by the CPU 61 (the power consumption by the CPU 61 occupies about 1/2 of the total power consumption of the portable personal computer 1). Can also be reduced. As a result, it is possible to supply power to each unit from the battery 75 for a longer time.
[0036]
In the above embodiment, the key 3 is provided with the dedicated key 71 for instructing CD playback in the suspend mode. However, various keys of the remote controller 31 are used as the dedicated keys. When this is operated, this can be detected by the switch monitoring circuit 66 and the CD can be reproduced.
[0037]
Further, although cases have been described with the above embodiment as examples where CDs are reproduced, the present invention can also be applied to cases where information recording media other than CDs are reproduced. Furthermore, the present invention can also be applied to a portable information processing apparatus other than a portable personal computer.
[0038]
The program for executing the various processes may be recorded on a recording medium such as a floppy disk or a CD-ROM disk, and provided to the user or transmitted via a network. . The provided program can be installed and stored in the RAM 63 or the hard disk 60 as necessary.
[0039]
【The invention's effect】
As described above, according to the program recording medium according to claim 1, the control method for the portable information processing device according to claim 4, and the portable information processing device according to claim 5, the operation of the CPU is stopped. When playback of the information recording medium is instructed in the state of the mode, the power is supplied to the part necessary for playback of the information recording medium among the parts where the supply of power is restricted . It becomes possible to supply power for a longer time.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external configuration of a portable personal computer to which the present invention is applied.
FIG. 2 is a perspective view showing an external configuration of a portable personal computer to which the present invention is applied.
FIG. 3 is a perspective view showing an external configuration of a portable personal computer to which the present invention is applied.
FIG. 4 is a diagram showing a configuration of a headphone system.
5 is a block diagram showing an example of the internal configuration of the portable personal computer shown in FIG. 1. FIG.
6 is a flowchart for explaining processing when the suspend mode of the portable personal computer shown in FIG. 5 is set. FIG.
7 is a flowchart illustrating processing for canceling a suspend mode of the portable personal computer of FIG.
8 is a flowchart for explaining CD playback processing when the portable personal computer of FIG. 5 is in suspend mode. FIG.
FIG. 9 is a diagram showing a display example of a display during CD playback in a conventional portable personal computer.
[Explanation of symbols]
1 portable personal computer, 5 CD-ROM drive, 7 CD-ROM, 12 LCD, 31 remote controller, 32L, 32R headphones, 61 CPU, 66 switch monitoring circuit, 67 CD-ROM controller, 68 audio circuit, 70 detection circuit , 71 Dedicated key, 72 Suspend mode release key, 73 Power supply circuit, 74 Power supply circuit, 75 Battery

Claims (5)

A program for controlling the operation of a portable information processing apparatus having a function of reproducing an information recording medium using power supplied from a battery ,
From a state where all of the portable information processing device is operating, a setting step for setting to a mode for stopping the operation of the CPU of the portable information processing device ;
When a mode for stopping the operation of the CPU is set, a limiting step of limiting power supply from the battery to each part of the portable information processing device ;
In a mode in which the operation of the CPU is stopped, a detection step of detecting an instruction to reproduce the information recording medium;
When the instruction to reproduce the information recording medium is detected in the detection step, the information recording medium is reproduced in the portion where the supply of power is restricted in a mode in which the operation of the CPU is stopped. A supply step for supplying power to the necessary parts ;
To release the mode for stopping the operation of the CPU, by supplying power to the respective parts from the battery, and comprising a release step for the state in which all of the portable information processing apparatus operates A program recording medium in which a program for causing a computer to execute processing is recorded. The program recording medium according to claim 1, further comprising a stop step of stopping a CPU that controls the overall operation of the portable information processing apparatus during the reproducing operation of the information recording medium. In the detection step, as an instruction for reproducing the information recording medium, an operation of a dedicated key for instructing reproduction of the information recording medium, or connection of a plug to an output terminal for outputting a signal reproduced from the information recording medium The program recording medium according to claim 1, wherein the program recording medium is detected . In a control method of a portable information processing apparatus having a function of reproducing an information recording medium using power supplied from a battery,
From a state where all of the portable information processing device is operating, a setting step for setting to a mode for stopping the operation of the CPU of the portable information processing device ;
When a mode for stopping the operation of the CPU is set, a limiting step of limiting power supply from the battery to each part of the portable information processing device ;
In a mode in which the operation of the CPU is stopped, a detection step of detecting an instruction to reproduce the information recording medium;
When the instruction to reproduce the information recording medium is detected in the detection step, the information recording medium is reproduced in the portion where the supply of power is restricted in a mode in which the operation of the CPU is stopped. A supply step for supplying power to the necessary parts ;
To release the mode for stopping the operation of the CPU, by supplying power to the respective parts from the battery, and characterized by comprising a releasing step of a state in which all of the portable information processing apparatus operates Control method for portable information processing apparatus. In a portable information processing apparatus having a function of reproducing an information recording medium using power supplied from a battery,
From a state in which all of the portable information processing device is operating, setting means for setting a mode for stopping the operation of the CPU of the portable information processing device ;
When a mode for stopping the operation of the CPU is set, limiting means for limiting power supply from the battery to each part of the portable information processing device ;
In a mode in which the operation of the CPU is stopped, detection means for detecting an instruction to reproduce the information recording medium;
When the instruction for reproducing the information recording medium is detected by the detecting means, the information recording medium is reproduced in the portion where the supply of power is restricted in a mode in which the operation of the CPU is stopped. Supply means for supplying power to necessary parts ;
To release the mode for stopping the operation of the CPU, by supplying power to the respective parts from the battery, and characterized in that it comprises a release means for the state in which all of the portable information processing apparatus operates Portable information processing device.

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