JP2004288209A - Information processor, information processor system and its resume method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processor having a resume function for maintaining security even when a plurality of users share the same information processor. <P>SOLUTION: In a main memory, a plurality of save areas for resuming 101, 102, 103 are provided, and an operation state at power-off together with a saved operation name including a user ID are saved in a different area for every user. Because an operation state save file is stored on a file server machine in a network, a resume function not requiring battery backup is provided. Accordingly, the operation state at the power-off of is saved and reproduced for every user independently, achieving an information processing device having resume function excellent in security and usability. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an information processing apparatus such as a personal computer, and more particularly, to a resume function for reproducing a work state such as power-off when power is turned on again. Further, the present invention relates to a resume function in an information processing system in which a plurality of information processing apparatuses are connected via a network.

  Due to recent advances in small packaging technology and low power technology, personal computers, workstations, word processors, and the like (hereinafter, these are referred to as information processing devices) are becoming smaller and smaller, and recently can be driven by a battery. Notebook-sized products have also appeared. In such a battery-driven information processing apparatus, it is required to turn off the power manually or automatically to prevent the battery from being consumed. However, when the power is turned off, a process of storing user information such as a document being created in a non-volatile storage device or the like is necessary, and when the power is turned on again, the program and the user information are again stored in the non-volatile storage device. For example, the user needs to call from the storage device. For this reason, frequently turning off the power causes a problem that the user becomes extremely inconvenient.

  Therefore, in the battery-driven information processing apparatus, before turning off the power, the contents of the display memory, the contents of the I / O registers of the input / output devices, and the like are stored in the main memory, and the main memory is backed up by the battery. When the power is turned on again, the contents of the display memory and the contents of the I / O registers of the input / output devices are written back to the respective devices when the power is turned on again, as if the power had been turned on. In general, a resume function for reproducing a state when the power is turned off is provided. An information processing apparatus having such a resume function is disclosed in, for example, Patent Literature 1 and Patent Literature 2.

JP-A-57-17042 JP-A-2-93814

  As described above, the resume function is an excellent information processing that can reproduce the user's work state when the power is turned on again even if the battery is reduced by frequently turning off the power, and does not reduce the usability. An apparatus is provided. However, with the resume function of the conventional information processing apparatus, the user cannot perform another operation while keeping one operation state. In addition, when a plurality of users use the same information processing apparatus, when a previously used operator has performed saving by the resume function, when an operator to be used later turns on the power, The operation state of the operator was reproduced, which was not preferable in terms of security and usability.

  Further, since the work state is saved by backing up the main memory with a battery, the work state can be saved only for a limited time determined by the capacity of the battery.

  Further, in the resume function of the conventional information processing apparatus, the work state can be reproduced only by the information processing apparatus in which the user interrupts the work and saves the work state, and the mobility is poor.

  Further, there has been a problem that the connection state to the network cannot be correctly reproduced by the resume function of the conventional information processing apparatus.

  In addition, the conventional resume function of the information processing apparatus has a problem in that it is not possible to receive a message such as an e-mail distributed via a network during automatic power-off for reducing power consumption.

  A first object of the present invention is to provide an information processing apparatus capable of storing and reproducing a plurality of work states.

  A second object of the present invention is to provide an information processing apparatus capable of storing a plurality of work states without performing backup by a battery.

  A third object of the present invention is to provide an information processing system capable of reproducing a work state even with an information processing apparatus other than an information processing apparatus in which a user has interrupted work and saved a work state.

  A fourth object of the present invention is to provide a method for controlling a work status even when a file of a second information processing device different from the first information processing device on which a user is working is used via a network. To provide an information processing apparatus capable of storing and reproducing the same.

  A fifth object of the present invention is to provide an information processing apparatus having a resume function capable of correctly reproducing a power-off state when the power is turned on even if the power is turned off while being connected to another information processing apparatus on a network. Is to provide.

  A sixth object of the present invention is to enable an information processing apparatus connected to another information processing apparatus on a network to display to a user a message sent from the other information processing apparatus even when the power is off. An information processing device is provided.

  The first object is to provide a plurality of work state storage areas for storing information in a storage device, and the processing apparatus uses the information of one work state storage area designated by an operator among the plurality of sets to store the work state. Is achieved by reproducing

  The second object is achieved by storing the working state on a magnetic disk or the like that does not require backup by a battery.

  The third object is to provide a plurality of sets of work status storage areas in the storage device of the first information processing device, and the second information processing device is provided with the first information processing device via a network. By accessing the storage device, at least a process of storing the information on the work state at the specific time in the work state storage area, and information of one set of the work state storage area designated by the operator among a plurality of sets, This is achieved by executing a process for reproducing the work state.

  The fourth object is achieved by executing a process of storing a use state of a file being used via a network when saving a work state, and a process of reproducing the use state of the file when reproducing a work state. .

  The fifth object is to keep the network controller energized even after the work state is saved, and to temporarily reproduce the work state when the network controller receives a frame from the network in this state, and to connect to another information processing apparatus. This is achieved by performing the processing necessary for maintaining the state.

  A fifth object of the present invention is to continue to supply power to the timer section even after the work state is stored, and to temporarily reproduce the work state when the timer section detects the elapse of a designated time in this state, and to perform other information processing. This is achieved by performing processing necessary for maintaining the connection state with the device.

  The sixth object is that the network controller continues to be energized even after the work state is saved, and in this state, the work state is reproduced when the network controller receives a frame from the network, and the frame displays a message to be displayed to the user. Achieved by displaying it when included.

  Since the work states at a plurality of times are stored in the plurality of sets of work state storage areas, the work states of a plurality of operators or the work states of a plurality of points of time by one operator are stored and reproduced. .

  In addition, since the work state is stored on a magnetic disk or the like that does not require a backup by a battery, a backup by a battery to a main memory is not required, and no power is consumed when the power is turned off.

  A plurality of information processing devices are connected via a network, and the work state storage area is provided collectively in one information processing device. Therefore, other information processing devices may be backed up by a battery or installed in a magnetic disk device or the like. In addition, the work state is reproduced by an information processing apparatus other than the information processing apparatus that has performed the process of saving the work state.

  Further, even if another information processing apparatus storing a file in use via the network after saving the work state makes the state of the file unused, the use state of the file is stored when the work state is saved. Therefore, when the work state is reproduced, the use state of the file can be reproduced based on the stored contents.

  In addition, by continuing to energize the network controller or the timer even after saving the work state, it is possible to continue the processing required to maintain the connection state with other information processing devices, and to resume the work state when the power is turned on again. Can be normally reproduced.

  Further, by continuing to supply power to the network controller even after saving the work state, a frame including a message can be received and the message can be displayed to the user.

  As described above, according to the present invention, since a plurality of work states can be saved and reproduced independently, the user can perform another work while keeping one work state. In addition, since the work states of a plurality of users can be stored and reproduced independently, security and usability are not impaired even when a plurality of users use the same information processing apparatus and use a resume function. In addition, it is possible to save a work state that does not require backup of the main memory by a battery, and it is possible to realize a resume function even in an information processing apparatus or the like that does not have a battery backup function. In addition, since the work state is saved on another information processing device connected via a network, the work state can be reproduced on an information processing device other than the information processing device where the user interrupted the work and saved the work state. And an information processing system with excellent mobility can be provided. In addition, work status can be saved and restored normally even when it is logically connected to another information processing device via a network. This feature can be used by an information processing device connected to a network. Also, even when the power is temporarily turned off for the purpose of power saving or the like while connected to the network, when a message addressed to the user comes, the power is automatically turned on again so that the message can be displayed. Therefore, the resume function can be used without impairing the serviceability of the information processing apparatus system connected to the network, such as a mail and message transmission function.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3. FIG.

  FIG. 2 is a configuration diagram of a battery-driven information processing apparatus according to the present embodiment. 1 is a CPU, 2 is a main memory using a DRAM, 3 is a display controller, 4 is a display memory, 5 is a liquid crystal display, 6 is a ROM, 7 is a battery, 8 is a memory controller, 9 is a power controller, and 10 is for resume. A power switch, 11 is a main power switch, 12 is a keyboard, 13 is a keyboard controller, 14 is an address / data bus, 20 is a backup power supply line, 21 is an SRAM, and 22 is an interrupt signal line.

  The power controller 9 monitors the status of the resume power switch 10, the status of the battery 7, and the keyboard controller 13. Then, when the resume power switch 10 is pressed by the user, when the battery 7 is exhausted, or when no input is made from the keyboard 12 for a certain period of time, the occurrence of one of the states is determined by the power ON state. , The CPU 1 is notified of the occurrence of the state by using the interrupt signal line 22 to the CPU 1. When detecting the interrupt signal, the CPU 1 executes the interrupt processing program 50 written in the ROM 6 in advance. The processing contents of the interrupt processing program 50 will be described below with reference to the flowchart of FIG. First, the contents of the registers of the CPU 1 are written into the main memory 2 in the CPU register contents storage 51. Next, the I / O registers of the peripheral devices including the display controller 3 and the keyboard controller 13 are stored in the peripheral device I / O register contents storage 52. Is read and written into the main memory 2. Further, the display data stored in the display memory 4 is read out in the display memory content storage 53 and written in the main memory 2. In the save work name setting 54, the user inputs the save work name and writes the save work name into the main memory 2. FIG. 14 shows an example of a display screen at the time of the input. In the save work name setting 54, a value indicating that the state has been saved is also written into the resume flag register provided in the power supply controller 9. Next, in the power supply OFF processing 55, the CPU 1 controls the power supply controller 9 to stop the power supply to the power supply controller 9 itself, the main memory 2, the SRAM 21, and the devices other than the memory controller 8, thereby turning off the power supply. I do. In this state, the memory controller 8 performs only the minimum necessary refresh operation for storing the contents stored in the main memory 2 composed of a DRAM, and the battery 7 is hardly consumed.

  FIG. 1 is a diagram illustrating an example of storage contents of a main memory according to the present embodiment. The user executes the OS or the application program using the area from 000000H to 17FFFFH. Here, H is a suffix indicating a hexadecimal number. The data saved by the above-described interrupt processing program 50 is written to the address area from 180000H to 1FFFFFH. In this example, in addition to the storage area A101 from 000000H to 1FFFFFH, the areas from 200000H to 3FFFFFH and from 400000H to 5FFFFFH are used as the storage area B102 and the storage area C103, respectively, and three types of work states can be simultaneously stored. Note that the arrangement of addresses and data may be other than that shown in FIG.

  When the power supply controller 9 detects that the user has pressed the resume power switch 10 again from the power OFF state, the power supply controller 9 resumes power supply to all devices. By the above operation, the CPU 1 first executes the reset program 60 stored in the ROM 6. As shown in FIG. 3, the reset program 60 first reads the value of the resume flag register provided in the power supply controller 9 in a state storage check 61, and checks whether or not the state was stored when the power supply was turned off. As a result of the investigation, if the state is not saved when the power is turned off, the initial setting 63 is executed, and the main memory, the peripheral devices, and the device are checked and initialized as in the information processing apparatus having no resume function. And waits for the user to start the program. On the other hand, as a result of the investigation, when the state is saved when the power is turned off, the user inputs a save work name in the save area input 62. Then, in the save area check 64, it is checked which save area in FIG. 1 the save work name is. As a result of the investigation, when the storage area is other than the storage area A101 of the address 000000H to 1FFFFFH, the content of the storage area A101 is replaced in the replacement 65 of the storage area A. For example, when the save area check 64 indicates the save work name save area B102, the contents of the address 000000H to 1FFFFFH are copied from the address 200000H to 3FFFFFH, and the contents of the addresses 200000H to 3FFFFFH are copied from the address 000000H to 1FFFFFH. . As a result of the investigation, if the storage area is the storage area A101, the replacement 65 with the storage area A is not executed. In the display memory content restoration 66, the display memory content in the storage area A101 is read and written to the display memory 4. In the peripheral device I / O register contents return 67, the I / O register values of the peripheral devices including the display controller 3 and the keyboard controller 13 in the storage area A101 are read, and the I / O registers of the display controller 3 and the keyboard controller 13 are read. Write that value to Further, in the CPU register content restoration 68, the CPU1 register contents stored in the storage area A101 are written into the CPU1 registers.

  As a result of the above-described processing, a work state designated by the user can be reproduced from one or a plurality of work states interrupted by the power-off due to the interrupt in the past. Note that part of the work state storage data may be stored in the SRAM 21 instead of the main memory.

  In the above-described embodiment, the example in which the user can arbitrarily specify the save work name has been described. However, a user ID may be used as the save work name. By using the user ID, the work state of another person can be prevented from being reproduced when the power is turned on, and a resume function excellent in security can be realized. Further, each user may be able to save and reproduce a plurality of work states by combining the user ID and a name arbitrarily designated by the user. In this case, this is realized by saving the user ID together with the work state instead of the save work name, or by saving the work state in a save area corresponding to the user ID. In the latter case, an operation of requesting the user to input a user ID when the power is turned on again is performed. Then, it is checked whether or not a work state corresponding to the user ID input exists. As a result, when a work state corresponding to the user ID exists, an operation for requesting the input of a save work name is further performed, and the work state is reproduced from the save area designated by the user in the same manner. . As a result, the work states of a plurality of users can be saved at the same time, and the work states of each user can be reproduced without losing security when the power is turned on again.

Next, a second embodiment of the present invention will be described below with reference to FIGS. FIG. 4 is a configuration example of the information processing apparatus according to the present embodiment. This configuration example is provided with a magnetic disk 16a and a disk controller 15 for controlling the magnetic disk 16a, and the backup power supply line 20 and the SRAM 21 are removed. The information processing in the first embodiment shown in FIG. This is different from the configuration example of the device. In this embodiment, the work state is stored in the main memory 2 in the magnetic disk 16a in the first embodiment.
At this time, the contents of the main memory 2 are also saved to the magnetic disk 16a. That is, the data of each storage area of the main memory 2 in the first embodiment is stored as a work state storage file 200 on the magnetic disk 16a in this embodiment. FIG. 5 shows an example of the format of the work state storage file 200. It should be noted that the file name of the work status storage file 200 is a storage work name designated by the user or a name including a user ID, so that a plurality of work statuses of one or a plurality of users can be obtained as in the first embodiment. Can be saved without compromising security and usability, and reappear when power is cycled. Further, in this embodiment, since the work state is stored in the magnetic disk 16a, which is a storage device that does not require a battery backup, the battery backup of the main memory 2 is unnecessary and many work states can be stored for a long time. There is a feature that can be saved.

  Next, a third embodiment of the present invention will be described below with reference to FIG. Reference numeral 17a denotes a first information processing apparatus in which a user performs work using application software or the like, 17b denotes a second information processing apparatus having a magnetic disk 16b, and 17c denotes a third information processing apparatus having the same architecture as the first information processing apparatus 17a. Information processing device. The magnetic disk 16b can be accessed from the first information processing device 17a and the third information processing device 17c via network adapters 18a, 18b, 18c and a network transmission line 19.

  The second embodiment is different from the second embodiment in that the work state storage file 200 of the first information processing device 17a is stored not in a storage device inside the information processing device 17a but in an information processing device 17b connected via a network. This is different from the work state saving processing in the embodiment. The present embodiment is characterized in that the information processing device 17a does not necessarily need a battery backup function of the main memory 2 for storing a work state or a storage device such as a magnetic disk 16a that does not require battery backup. Further, since there is no need to turn off the power of the information processing device 17b in conjunction with the information processing device 17a, the main memory of the information processing device 17b is used instead of the magnetic disk 16b unless the power of the information processing device 17b is turned off. May be used.

  In this case, when the power of the information processing apparatus 17a is turned off, the work state when the power of the information processing apparatus 17a is turned off is transferred to the information processing apparatus 17b connected via a network. The information processing device 17b stores and stores the information in the main memory or the magnetic storage device 16b of the information processing device 17b accordingly. Thus, the information processing device 17a can realize the resume function without backing up the main memory with the battery. Further, the work state stored in the information processing device 17b can be reproduced by the information processing device 17c. Therefore, the work state can be stored in the information processing device 17a, and the work state can be reproduced from the information processing device 17c.

  Next, a fourth embodiment of the present invention will be described below with reference to FIG. In the present embodiment, in order to avoid the problem that the network connection state at the time of saving the work state cannot be correctly reproduced at the time of reproducing the work state, the interrupt processing program 50 described in FIG. Steps 701, 702, 703, 704, and 705 shown in FIG. Step 701 first checks whether or not a connection to the network is being made. If it is not connected to the network, the process proceeds to step 51 to save the contents of the CPU register, and thereafter, the working state is saved and the power is turned off in the same manner as in the first embodiment. On the other hand, if it is currently connected to the network, it is checked in step 702 whether or not the interrupt processing program 50a has been started by a timer interrupt due to the absence of input from the keyboard 12 for a predetermined time. In the case of a timer interrupt, this interrupt processing program 50a ends without executing the following steps. If it is not a timer interrupt, the user is notified in step 703 that the network connection state cannot be reproduced, and then in step 704 the user is inquired whether to save the work state. FIG. 15 shows an example of the display screen at this time. If the user does not save the work state, the user is further asked in step 705 whether to turn off the power. If the user answers that the power is turned off, the power-off process in step 55 is executed. If the answer is NO, the interrupt processing program 50a is terminated. If the user answers in step 704 that the work state is to be saved, steps 51 to 55 are executed, and the work state is saved and the power is turned off in exactly the same manner as in the first embodiment.

As described above, the work state is not saved by the timer during the network connection, thereby preventing the work state saving operation in which the network connection state cannot be reproduced due to the user's suspension of the work for a while from being automatically performed. be able to.
In addition, even when the user attempts to save the work state manually, the user is notified that the network connection state cannot be reproduced, so that the user can perform an appropriate process.

  Next, a fifth embodiment of the present invention will be described. FIG. 10 is a configuration example of a system according to the present embodiment. Reference numeral 17a denotes a first information processing apparatus in which a user performs work using application software or the like, 17b denotes a second information processing apparatus having a magnetic disk 16b and operates as a server, and 17c denotes the same as the first information processing apparatus 17a. A third information processing device 17c having an architecture is a fourth information processing device having an architecture different from that of the first information processing device 17a. The magnetic disk 16b is connected to the first information processing device 17a, the third information processing device 17c, and the fourth information processing device 17d via network adapters 18a, 18b, 18c, 18d and a network transmission line 19. Can be accessed. The hardware configuration of the information processing apparatus according to the present embodiment has the same configuration as that shown in FIG. 2 in the first embodiment. The operation will be described below in the order of saving and reproducing the work state.

    The power controller 9 of the information processing device 17a monitors the state of the resume power switch 10, the state of the battery 7, and the keyboard controller 13. Then, when the resume power switch 10 is pressed by the user, when the battery 7 is depleted, or when there is no input from the keyboard 12 for a certain period of time, the power is turned on. When the state is detected, the occurrence of the state is notified to the CPU 1 using the interrupt signal line 22. When detecting the interrupt signal, the CPU 1 executes the interrupt processing program 50b written in the ROM 6 in advance. The processing contents of the interrupt processing program 50b will be described below with reference to the flowchart of FIG. 8 and the memory map of FIG. First, in step 801, the register contents of the CPU 1 immediately before the occurrence of the interrupt are stored in the CPU register table 1010. As shown in FIG. 10, the CPU register table 1010 has a structure in which a register number, a size indicating the number of bytes of the register, and CPU register data indicating the contents of the register are set as a set, and the set is repeated by the number of the registers. Has become. The CPU register table address 1004 stores the head address of the CPU register table address 1010.

  Next, in step 802, the I / O register is read, and the I / O register table 1011 and the I / O register table address 1005 shown in FIG. The I / O register table 1011 has a structure in which an I / O address, a size indicating the number of bytes of the register, and I / O register data indicating the contents of the register are set as one set, and the set is repeated by the number of the registers. Has become. The head address of the I / O register table address 1011 is stored in the I / O register table address 1005.

  Next, in step 803, the contents of the display memory 4 are read and stored in the display memory data table 1012 shown in FIG. The display memory table address 1006 stores the head address of the display memory table address 1012.

  Next, in step 804, an open file information table 1013 is created. An open file is a file used by the OS due to the operation of the OS itself or a request from application software. There are three types of open file states: read-only, write-only, and read / write. Here, as shown in FIG. 10, the file name of the open file, the state of the open file, and the number of bytes including the file name and the flag indicating the state are set as one set, and the open file An open file information table 1013 having a structure that is repeated by the number of times is created. The open file information table address 1007 stores the head address of the display memory table address 1013.

  Next, in step 805, whether the first information processing device 17a running this program is physically and logically connected to the second information processing device 17b running as a server via a network Investigate whether. As a result of the check, if the connection is established, the following steps 806 and 807 are executed, and if not, the step 815 is executed. In step 806, the open server file is closed with reference to the open file information table 1013 created in step 804, and in step 807, the logical name of the second information processing device 17b in the network is connected. The server name 1014 is stored in the main memory 2 as shown in FIG. At this time, the storage address of the connection server name 1014 on the main memory 2 is stored on the main memory 2 as the connection server name address 1008. On the other hand, in step 815, the connection server name address 1008 is set to "0" indicating that no connection is made to the server.

  In step 808, the user is inquired whether to save the work status as a file or to save the main memory by backing it up with a battery. If the user answers that the file is to be stored in a file, the user inputs a file name for storing the work state in step 809. FIG. 16 shows an example of the screen display in steps 808 and 809.

  Next, in step 810, a work state storage file 200a having the file name is created. At this time, in addition to the data content 203 of the main memory 2 shown in FIG. 11, the storage model code 201 and the storage date and time 202 are also stored in the work status storage file 200a. FIG. 12 shows the configuration of the work state storage file 200a. Next, the resume flag register provided in the power supply controller 9 is set to a value indicating that the state is not saved when saving to a file (step 811), and when not saving to a file, the state is saved. Is set to a value indicating the fact (step 812). Thereafter, the logout is performed in step 813 to disconnect the connection to the network, the power is turned off in step 814, and the interrupt processing program 50b for saving the work state is terminated.

  Next, the operation when reproducing the work state will be described. When the power controller 9 detects that the user has pressed the resume power switch 10 again from the power OFF state, the power controller 9 starts supplying power to all devices. Accordingly, the CPU 1 first executes the reset program 60b stored in the ROM 6. FIG. 9 shows a flowchart of the reset program 60b. The reset program 60b first reads the value of the resume flag register of the power supply controller 9 in step 901, and checks whether the work state has been saved in the main memory 2 when the power supply is turned off. As a result of the check, if the work state is stored in the main memory 2, the control is transferred to step 912; otherwise, the step 902 is executed. In step 902, the user is inquired whether or not to reproduce the work state from the file. If the user answers that the reproduction is not to be performed from the file, the control is shifted to the initial setting in step 900, and the apparatus is initialized and the OS is started. Do. If the user answers in step 902 that the file is reproduced from a file, the user is further asked in step 903 about the name of the work state storage file 200a to be used. FIG. 16 shows an example of the display screen at this time. Next, in step 904, the name of the work status storage file 200a is analyzed, and it is checked whether the file is on the information processing device 17b used as a server. If the result of the check is that the file is not a file on another information processing device 17b, the control moves to step 908. If the file is on the information processing device 17b, the user initializes the network adapter 18a in step 905, inputs a user name and password in step 906, and uses the user name and password in step 907. Then, a login to the information processing apparatus 17b is executed to make a logical connection. FIG. 17 shows an example of the screen display in step 906. Next, in step 908, the storage model code 201 stored at the time of saving the work status is read out with reference to the work status storage file 200a. Next, in step 909, it is checked whether or not the storage model code 201 matches the model code of the information processing apparatus executing the program. As described above, in the present embodiment, the information processing device 17a and the information processing device 17c have the same architecture and the same model code, but the information processing device 17d has a different architecture and is different from other information processing devices. Have different model codes. Accordingly, when the work state is saved by the information processing device 17a, and when the work state is reproduced by the information processing device 17a or the information processing device 17c, the determination in the step 909 is “match”, and The determination made by the processing device 17d is “mismatch”. If the result of the determination is "mismatch", the user is notified that the model is different in step 910, and the user is inquired whether or not another work state storage file 200a is to be used. FIG. 18 shows an example of the inquiry screen. If the user answers using another work state storage file 200a, the process returns to step 903. If the user does not use the work state storage file 200a, the process returns to step 900 without performing the process of reproducing the work state. Initialization and OS startup are performed. If the result of the determination in step 909 is "match", the main memory contents 203 of the work status storage file 200a are read out in step 911 and expanded in the main memory 2. As a result, the contents of the main memory 2 shown in FIG. 11 are reproduced. Next, in step 912, the content of the connection server name address 1008 is checked. If the content is "0", it is determined that the network was not connected at the time of saving the work state, and the control is shifted to step 918. If the content of the connection server name address 1008 is not "0", it is determined that the connection to the network has been established, and the initialization of the network adapter 18a in step 913 is executed. Next, in step 914, it is checked whether or not the user name has been input in step 906. If not, the user inputs the user name and password in step 915. In step 916, the user inputs the user name and password. The login to the information processing device 17b is performed using the password. Next, in step 917, the open state of the file is reproduced by referring to the open file information table 1013 on the main memory 2 if the table contains a file on the information processing device 17b used as a server. In step 918, the last change date and time of the file registered in the open file information table 1013 is checked and compared with the save date and time 202 of the work status save file 200a. If the last change date and time is later than the save date and time 202, there is a possibility that the contents of the file have changed after the work state was saved. Accordingly, there is a case where the file cannot be used as it is, so that a message as shown in FIG. 19 is displayed to warn the user. Next, in step 919, the contents of the display memory data table 1012 are stored in the display memory 4, and in step 920, the contents of each I / O register are reproduced with reference to the I / O register table 1011. Finally, in step 921, the contents of each register of the CPU 1 are reproduced with reference to the CPU register table 1010. When step 921 is completed, the reproduction of the work state is completed.

  In this embodiment, if the user is connected to the network at the time of saving the work state, the connection to the network and the login operation are automatically performed when the work state is reproduced, so that the work state including the connection state to the network can be reproduced. There is an effect that can be. Further, even when a work state is saved while a file on another information processing device used as a server is open, the open state can be reproduced when the work state is reproduced, so that the work state can be correctly reproduced. This has the effect. Further, when the open state of the file is reproduced, the work state saving date and time and the last modification date and time of the file are compared, and if the last modification date and time is later, there is no change in the contents of the file after saving the work state. Is notified to the user, so that the user can perform necessary processing on the file. In addition, the model code 201 of the information processing apparatus that performed the saving is stored in the work state storage file 200a, and when the work state is reproduced, the model code is compared with the model code of the information processing apparatus that performs the reproduction. Since the reproduction is not performed, there is an effect that it is possible to prevent a trouble such as a runaway of a program which occurs when the reproduction is performed by a different model. In addition, since the user can select whether to save the work state by using the battery backup of the main memory 2 or the work state storage file 200a, whether or not the user is connected to the network or a set of work states can be saved. There is an effect that an optimal work state saving method can be selected according to the situation, such as whether or not the user wants to save and reproduce at high speed by battery backup of the main memory 2.

  Next, a sixth embodiment of the present invention will be described below with reference to FIG. A work status storage file 200b in FIG. 13 shows another example of the work status storage file 200a in the fifth embodiment. In the fifth embodiment, the contents of the main memory 2 are stored as they are as the main memory contents 203, but in this embodiment, only the used memory blocks of the main memory 2 are stored as the main memory contents 203b. I do. Specifically, based on the memory usage data provided by the OS, the start address, block size, and main memory contents are stored for each memory block in use. As a result, it is not necessary to store the data of the unused main memory portion, so that the file size of the work state storage file 200b can be reduced, and the used amount of the magnetic disk 16a or 16b for storing the work state storage file 200b can be reduced. There is an effect that the time required for storage and reproduction can be reduced. The method of storing the contents of the main memory 2 in the work state storage file 203b is not limited to the above-described method of limiting the memory block to the used memory block, or the size of the work state storage file 203b is reduced by using a data compression algorithm or the like. It may be smaller.

  Next, a seventh embodiment of the present invention will be described below. In this embodiment, the interrupt program for saving the work state and the reset program for reproducing the work state stored in the ROM 6 in the above-described embodiment are stored in the storage device as program files that can be executed as commands from the OS. Store. FIG. 20 shows a file directory of the magnetic disk 16a of the information processing device 17a in the present embodiment. The file directory stores two types of OSs, OSa and OSb. OSa and OSb have different command program formats and cannot use a common program file. Commands and data of each OS are stored under a directory of commands 502a and 502b and a directory of data 503a and 503b, respectively. The work state reproduction program and the work state storage program for the OSa are stored in the directory of the command 502a as work state reproduction a 504a and work state storage a 505a, respectively. The work state reproduction program and the work state storage program for the OSb are stored in the directory of the command 502b as files called a work state reproduction b 504b and a work state storage b 505b, respectively. The processing contents of the work state storage a505a and the work state storage b505b may be the same as the processing procedures of the above-described interrupt programs 50, 50a, and 50b. Also, the processing contents of the work state reproduction a 504a and the work state reproduction b 504b may be the same as the processing procedures of the above-described reset programs 60 and 60b. When the user wants to save / reproduce the work state, a work state save / reproduction program corresponding to the type of the OS in use is executed as a command. FIG. 21 shows an example of a screen on the OSa for issuing a command to open another window and to save a work state during a work of creating a graph in a certain window.

  According to the present embodiment, since the work state storage and reproduction program can be executed as a command program, the effect that the resume function can be realized even in an information processing apparatus that does not have a power supply mechanism for resume and a ROM program. is there. Further, since a work state storage and reproduction program can be selected according to the type of OS, there is an effect that the work state can be easily stored and reproduced even when a plurality of OSs are used.

  In the embodiment described above, an example is shown in which a magnetic disk device is used as a storage device that does not require a battery backup, but any device such as an optical disk device may be used if a battery backup is not required. The display may be a CRT or the like instead of the liquid crystal display 5. The work state may be saved and reproduced not only when the power is turned off and when the power is turned on again, but also at any timing when the user wants to interrupt or restart the work.

  Next, an eighth embodiment of the present invention will be described with reference to FIGS.

  FIG. 23 is a configuration diagram of an information processing device system using the information processing device according to one embodiment of the present invention. In the present information processing apparatus system, the information processing apparatus 17a establishes a logical connection with the information processing apparatus 17b via the network 19, so that the disk apparatus 16b connected to the information processing apparatus 17b is connected to the own apparatus. It can be read and written as if it were a disk drive. During a logical connection between the information processing device 17a and the information processing device 17b, the information processing device 17b periodically transmits a connection confirmation request frame to the information processing device 17a at appropriate time intervals. The information processing device 17a returns a connection confirmation response frame in response to the connection confirmation request frame, thereby maintaining the logical connection. Alternatively, the logical connection is maintained by the information processing apparatus 17a periodically transmitting a connection confirmation notification frame to the information processing apparatus 17b at appropriate time intervals. If the connection confirmation response frame is not returned or the connection confirmation notification frame is not transmitted, the information processing device 17b regards the information processing device 17a as being in an abnormal state, and performs a logical connection. It is designed to be released.

  FIG. 22 is a configuration diagram of an information processing device 17a to which the eighth embodiment of the present invention has been applied. In the figure, reference numeral 23 denotes a power control signal line from the network controller 18 to the power controller 9. FIG. 24 is a detailed configuration diagram of the power supply controller 9. Reference numeral 91 denotes a switch unit for turning on / off the power supplied to each unit, 92 denotes a power switch controller for controlling the switch unit 91, 93 denotes a status register for notifying the CPU 1 of the state of the power controller 9, and 94 denotes a status register for the CPU 1. A command register 95 for giving an operation instruction to the power controller 9, a timer 95 used by the power switch controller 92 for the purpose of timing, and a power supply line 96 for supplying power to each unit. In the information processing apparatus having the above configuration, the resume function according to the present invention operates as follows.

  First, a procedure in which the operating information processing apparatus 17a saves the working state at that time and enters the power-off state will be described with reference to the sequence diagram of FIG.

  When the information processing device 17a is operating, the resume power switch 10 is pressed, it is detected that the voltage of the battery 7 has dropped below a certain value, or no key input has been made to the keyboard 12 for a certain time. When the power switch controller 92 detects that the power is off, the power switch controller 92 generates an interrupt requesting the CPU 1 to start processing required for power-off through the interrupt signal line 22 (step 101). When receiving the interruption, the CPU 1 starts a work state saving process (step 102). As a method of saving the work state, a method in which the RAM 2 is constituted by a RAM that can be backed up by the battery 7 and the work state including the contents of the display memory 4 is stored and stored in the RAM, and the work state is stored as a file in a disk device For example, there is a method of saving the work status as a file in the disk device 16b connected to the information processing device 17b via the network 19, and the like. When the saving of the work state is completed, the CPU 1 notifies the power switch controller 92 of the completion of the work state saving process by writing a specific command indicating the completion of the work state saving to the command register 94 (step 103). When notified of the completion of the work state saving process, the power switch controller 92 operates the switch unit 91 to stop supplying power to all units except the network controller 18, and the network controller 18 is turned off. Is notified (step 104). By this notification, the network controller 18 does not immediately notify the CPU 1 when the frame is received, but first notifies the power controller 9. With the above processing, the information processing apparatus 17a saves the work state and enters the power-off state.

  Next, a procedure for responding to the connection confirmation request frame transmitted from the information processing device 17b when the information processing device 17a stores the work state and is in the power-off state will be described with reference to the sequence diagram of FIG. I do.

  When the connection confirmation request frame is transmitted from the information processing device 17b while the information processing device 17a is in the power-off state, the network controller 18 suspends the frame reception interrupt to the CPU 1 and the power controller 9 through the power control signal line 23. (Step 111). The power-on request is received by the power switch controller 92 in the power controller 9 and the status register 93 is set to indicate that the power needs to be reproduced, and the switch 91 is operated to connect the power supply line 96 to the power supply line 96. Power is supplied (step 112). However, since the power is temporarily turned on again at the request of the network controller 18, power is not supplied to the display device 5. The CPU 1 to which the power has been supplied starts the reset process according to the program stored in the ROM 6. After turning on the power, the CPU 1 first reads the contents of the status register 93, recognizes that the work state needs to be reproduced, and starts the work state reproduction process (step 113). When the reproduction of the work state is completed, the CPU 1 notifies the power supply controller 9 of the completion of the reproduction of the work state by writing a specific command to the command register 94, and continues the reproduced processing before the power-off (Step 114). When notified of the completion of the work state reproduction process, the power supply controller 9 also notifies the network controller 18 of the completion and starts the timer 95 (step 115). The network controller 18, which has been notified of the completion of the work state reproduction process, issues a suspended frame reception interrupt to the CPU 1 here (step 116). The CPU 1 that has received the frame reception interrupt starts the protocol processing. In this processing, the CPU 1 requests the network controller 18 to transmit a connection confirmation response frame because the received frame is the connection confirmation request frame from the information processing device 17b (step 117). In response to the frame transmission request, the network controller 18 transmits a connection confirmation response frame to the information processing device 17b (Step 118). Thereafter, when the timer 95 started in step 115 times out, the timer is notified to the power switch controller 92, and an interrupt requesting the CPU 1 to start processing necessary for power-off is generated through the interrupt signal line 22 (step 119). ). When receiving the interruption, the CPU 1 starts the process of storing the work state again (step 120). When the work state saving process is completed, the CPU 1 notifies the power controller 9 of the completion of the work state save by writing a specific command to the command register 94 (step 121). The notification is received by the power switch controller 92 in the power controller 9, the power supply to each unit is stopped by operating the switch unit 91, and the network controller 18 is notified that the power has been turned off again (step 122). ). With the above processing, the information processing apparatus 17a responds to the connection confirmation request frame sent from the information processing apparatus 17b by temporarily turning on the power again in response to the reception of the frame even in the power-off state. It is possible to maintain a logical connection with the information processing device 17b.

  Finally, a procedure when the information processing apparatus 17a saves the work state and turns on the power again in response to a request from the user when the information processing apparatus 17a is in the power-off state will be described with reference to the sequence diagram of FIG.

When the resume power switch 10 is pressed while the power is off, the power switch controller 92 sets the status register 93 to indicate that the power needs to be turned on to reproduce the work state, and operates the switch unit 91 to turn on the power. The supply of power to the supply line 96 is started (step 131). Here, since the power is turned on again at the request of the user, the power is supplied to all parts of the information processing device 17a including the display device 5. The CPU 1 to which the power has been supplied starts the reset process according to the program stored in the ROM 6. After turning on the power, the CPU 1 first reads the contents of the status register 93, recognizes that the work state needs to be reproduced, and starts the work state reproduction process (step 132). When the reproduction of the work state is completed, the CPU 1 writes a specific command to the command register 94 to notify the power supply controller 9 of the completion of the reproduction of the work state, and continues the reproduced processing before the power-off (step 133). . When notified of the completion of the work state reproduction process, the power supply controller 9 notifies the completion to the network controller 18 (step 134).
Since the power is turned on again at the request of the user, the timer 95 does not start. When the network controller 18 receives a frame thereafter by the notification, it immediately notifies the CPU 1 by an interrupt. With the above processing, the user can continue the work by reproducing the work state when the power is turned off.

  Next, a ninth embodiment of the present invention will be described with reference to FIGS.

  FIG. 28 is a configuration diagram of the information processing device 17a according to the ninth embodiment of the present invention. In the figure, reference numeral 24 denotes a timer unit for detecting the elapse of a designated time.

  In the operation of the resume function according to the present embodiment, the procedure in which the operating information processing apparatus 17a saves the work state and turns off the power, and the procedure in which the power is turned on again at the request of the user, are respectively performed. This is the same as the sequence diagram of FIGS. 25 and 27 except that the network controller 18 is replaced by the timer unit 24. When notified of the power-off state, the timer unit 24 notifies the power supply controller 9 without immediately notifying the elapse of the designated time to the CPU 1, and when the timer unit 24 is notified of the release of the power-off state. Then, the CPU 1 is immediately notified of the elapse of the designated time.

  Here, a procedure in which the information processing apparatus 17a transmits a connection confirmation notification frame to the information processing apparatus 17b when the timer unit 24 detects the elapse of the designated time during the power-off state will be described with reference to the sequence diagram of FIG. explain.

  When the timer unit 24 detects the elapse of the designated time when the information processing apparatus 17a is in the power-off state, the timer unit 24 issues a power-on request to the power controller 9 through the power control signal line 23, and a time-out interrupt to the CPU 1 is performed. Is suspended (step 141). The power-on request is received by the power switch controller 92 in the power controller 9 and the status register 93 is set to indicate that the power needs to be reproduced, and the switch 91 is operated to connect the power supply line 96 to the power supply line 96. Power supply is started (step 142). However, the power is not supplied to the display device 5 because the power is temporarily turned on again at the request of the timer unit 24. The CPU 1 to which the power has been supplied starts the reset process according to the program stored in the ROM 6. After turning on the power, the CPU 1 first reads the contents of the status register 93, recognizes that the work state needs to be reproduced, and starts a work state reproduction process (step 143). When the reproduction of the work state is completed, the CPU 1 writes the specific command to the command register 94 to notify the power supply controller 9 of the completion of the reproduction of the work state, and continues the reproduced processing before the power-off (Step 144). When notified of the completion of the work state reproduction process, the power supply controller 9 also notifies the timer unit 24 of the completion and starts the timer 95 (step 145). The timer unit 24, which has been notified of the completion of the work state reproduction process, issues a suspended timeout interrupt to the CPU 1 here (step 146). The CPU 1 that has received the timeout interrupt requests the network controller 18 to transmit a connection confirmation notification frame (step 147). In response to the frame transmission request, the network controller 18 transmits a connection confirmation notification frame to the information processing device 17b (Step 147). Thereafter, when the timer 95 started in step 145 times out, the timer is notified to the power switch controller 92, and an interrupt is generated via the interrupt signal line 22 to request the CPU 1 to start processing required for power-off (step 148). ). When receiving the interrupt, the CPU 1 starts the work state saving process again (step 149). When the work state saving process is completed, the CPU 1 notifies the power controller 9 of the completion of the work state save by writing a specific command to the command register 94 (step 150). The notification is received by the power switch controller 92 in the power controller 9, the switch unit 91 is operated to stop the power supply to each unit, and the timer unit 24 is notified that the power has been turned off again (step 151). ). Through the above processing, the information processing apparatus 17a can transmit the connection confirmation notification frame to the information processing apparatus 17b by temporarily turning on the power again by a timer interrupt even in the power-off state, It is possible to maintain a logical connection with the information processing device 17b.

  Next, a tenth embodiment of the present invention will be described with reference to FIG.

  FIG. 30 is a sequence diagram showing a process according to the tenth embodiment of the present invention. In this sequence diagram, when the information processing apparatus 17a having the configuration of FIG. 22 is in a power-off state while maintaining a logical connection with the information processing apparatus 17b, a message to be displayed to the user from the information processing apparatus 17b is displayed. FIG. 9 shows a process performed when a frame including the frame is received.

When the network controller 18 receives a frame including a message to be displayed to the user from the information processing device 17b, the network controller 18, the power controller 9, and the CPU 1 first perform a series of processes from step 161 to step 166. These processes are the same as the processes from step 111 to step 116 shown in the sequence diagram of FIG. When receiving a frame reception interrupt from the network controller 18, the CPU 1 starts protocol processing for the frame (step 167). In this process, when the CPU 1 finds that the frame contains a message to be displayed to the user, the CPU 1 writes a specific command in the command register 94 and notifies the power controller 9 that it is not necessary to turn off the power again. (Step 168) Further, the message is displayed on the display device 5 through the display controller 3 (Step 169). The power switch controller 92 in the power controller 9 that has received the notification stops the timer 95 started in step 165 and switches the switch unit 91 so as to start supplying power to the display device 5 that has not been supplied in step 162. Is operated (step 170). With the above processing, when a message to be displayed to the user is received in a power-off state while maintaining the logical connection with the information processing apparatus 17b, the power can be automatically turned on again to display the message. Become. In this embodiment, the received message is displayed unconditionally. However, before displaying the message in step 169, an inquiry is made to the user as to whether the message is to be displayed, and the display instruction is issued. It may be displayed only when there is. If there is no instruction within a certain period of time, that is, if there is no user in front of the information processing device 17a, a message is not displayed, the work state is saved again, and the power supply controller 9 is instructed to turn off the power. To do.

FIG. 3 is a diagram illustrating an example of contents stored in a main memory according to the first embodiment of the present invention. FIG. 1 is a configuration diagram of an information processing apparatus according to a first embodiment of the present invention. 5 is a flowchart for realizing a resume function according to the first embodiment of the present invention. FIG. 9 is a configuration diagram of an information processing device according to a second embodiment of the present invention. FIG. 11 is a diagram illustrating an example of a format of a work status storage file according to a second embodiment of the present invention. FIG. 11 is a configuration diagram of a network according to a third embodiment of the present invention. 14 is an example of a flowchart of an interrupt program for saving a work state according to the fourth embodiment of the present invention. It is an example of the flowchart of the interruption program which saves the working state in the fifth embodiment of the present invention. It is an example of the flowchart of the reset program which reproduces the working state in the fifth embodiment of the present invention. FIG. 13 is a configuration diagram of a network according to a fifth embodiment of the present invention. FIG. 14 is a diagram illustrating a memory map of a main memory according to a fifth embodiment of the present invention. FIG. 16 is a diagram illustrating an example of a format of a work status storage file according to a fifth embodiment of the present invention. FIG. 16 is a diagram illustrating an example of a format of a work status storage file according to a sixth embodiment of the present invention. FIG. 6 is a diagram illustrating an example of a save work name input screen according to the first embodiment of the present invention. It is a figure showing an example of an inquiry screen in a 4th example of the present invention. It is a figure showing an example of a work state saving file name input screen in a 5th example of the present invention. It is a figure showing an example of an input screen of a user name and a password in a 5th example of the present invention. It is a figure showing an example of a model mismatch message display screen in a 5th example of the present invention. It is a figure showing an example of a file contents change message display screen in a 5th example of the present invention. FIG. 16 is a diagram illustrating an example of a file directory according to a seventh embodiment of the present invention. It is a figure showing an example of a work state preservation command input screen in a 7th example of the present invention. FIG. 14 is a configuration diagram of an information processing apparatus according to an eighth embodiment of the present invention. FIG. 1 is a configuration diagram of an information processing apparatus system according to an embodiment of the present invention. FIG. 15 is a configuration diagram of a power supply controller of an information processing device according to an eighth embodiment of the present invention. FIG. 19 is a sequence diagram illustrating a power-off process according to an eighth embodiment of the present invention. FIG. 18 is a sequence diagram illustrating a connection confirmation request frame receiving process according to an eighth embodiment of the present invention. FIG. 19 is a sequence diagram illustrating a power-on / off process according to an eighth embodiment of the present invention. FIG. 19 is a configuration diagram of an information processing apparatus according to a ninth embodiment of the present invention. FIG. 21 is a sequence diagram illustrating a connection confirmation notification frame transmission process according to a ninth embodiment of the present invention. FIG. 21 is a sequence diagram illustrating a message receiving process according to a tenth embodiment of the present invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... main memory, 3 ... display controller, 4 ... display memory, 6 ... RO
M, 7: battery, 8: memory controller, 9: power controller, 10 ...
Power switch for resume, 11: Main power switch, 12: Keyboard, 1
3: Keyboard controller, 14: Address / data bus, 15: Disk controller, 16: Magnetic disk, 17: Information processing device, 18: Network adapter, 19: Network, 20: Backup power supply line, 21: SRA
M, 22: interrupt signal line, 23: power control signal line, 24: timer unit, 91: switch unit, 92: power switch controller, 93: status register, 94
.., Command register, 95, timer, 96, power supply line, 101, storage area A,
102: storage area B, 103: storage area C, 200: work state storage file.

Claims (25)

A device that can be connected to a network,
A processing unit;
Power supply module,
A communication module for connecting the device to a network;
A power supply line connecting the power supply module with the processing device and the communication module;
A power control signal line connecting the communication module and the power supply module,
The power supply module receives a power-on request from the communication module via the power control signal line,
A network-connectable device that supplies power to the processing device via the power supply line based on the power-on request. The network-connectable device according to claim 1,
The communication module determines whether a frame transmitted from another device connected to the network is a frame addressed to the own device, and determines that the frame is addressed to the own device. A network-connectable device that transmits the power-on request to the power supply module via a control signal line. The network-connectable device according to claim 1,
The power supply module further includes a switch unit for turning on / off power supplied to the processing device, and a power switch controller for controlling the switch unit.
The network-connectable device, wherein the power switch controller operates the switch unit to supply power to the power supply line based on the power-on request. A network-connectable device according to claim 2,
The power supply module is connected to an interrupt signal line that notifies the processing device of a signal interrupt,
A network-connectable device that transmits a power-off processing request to the processing device via the interrupt signal line. A network-connectable device according to claim 4,
The power supply module further includes a timer connected to the power switch controller,
The network-connectable device, wherein the power switch controller transmits a power-off processing request to the processing device due to a timeout of the timer. The network-connectable device according to claim 1,
The network-connectable device, wherein the power supply module supplies power to the communication module via the power supply line even when a portion of the device other than the communication module is in a power-off state. A device that can be connected to a network,
A power control signal line,
A communication module connected to the power control signal line;
Power supply line,
A processing device connected to the power supply line,
A power supply module connected to the power supply line and the power control signal line,
The power supply module,
When the power-on request is received from the communication module via the power control signal line, power to the processing device is turned on via the power supply line based on the power-on request. A device that can be connected to a network. A network-connectable device according to claim 7,
The network-connectable device, wherein the power supply module supplies power to the communication module via the power supply line even when a portion of the device other than the communication module is in a power-off state. A network-connectable device according to claim 8, wherein
The power supply module, the communication module receives a frame transmitted from another device connected to the network, determines whether the received frame is a frame addressed to the device itself, the frame Receiving the power-on request via the power control signal line when it is determined that the device is addressed to the own device. A device for controlling power of a first device connected to a network,
A communication module connected to the network;
A power supply module for supplying power to the communication module;
A power supply control signal line connecting the communication module and the power supply module,
Having a power supply line connecting the first device and the power supply module,
The communication module receives a frame transmitted from a second device connected to the network, determines whether the received frame is a frame addressed to the first device, the frame is the frame Transmitting a power-on request to the power supply module via the power supply control signal line when it is determined that the power is supplied to the first device;
The power supply control device, wherein the power supply module turns on the power of the first device via the power supply line based on the power on request. A power supply module in a network-connectable device having a processing device and a communication module,
A power control signal line connected to the communication module, and a power supply line connected to the processing device,
When a power-on request is received from the communication module via the power control signal line,
A power supply module, wherein the power supply to the processing apparatus is performed via the power supply line based on the power supply request. The power supply module according to claim 11, wherein
Via the power supply line, always supply power to the communication module,
The communication module receives a frame transmitted from another device connected to a network, determines whether the received frame is a frame addressed to the own device, and determines that the frame is addressed to the own device. The power supply module receives the power-on request via the power control signal line when the power supply control signal line is determined. An information processing device,
A storage device,
A power supply controller,
A network controller for connecting the information processing device to a network,
A processing device that performs processing according to the processing content stored in the storage device;
Even if the information processing apparatus is in a power-off state, a power supply controller that supplies power to the network controller,
An information processing apparatus, comprising: a power switch controller that instructs the information processing apparatus to supply power when the information processing apparatus receives a frame via the network in a power-off state. The information processing apparatus according to claim 13,
The information processing apparatus, wherein the network controller identifies whether a frame transmitted from another device connected to the network includes a power-on request. The information processing apparatus according to claim 13,
The information processing device, wherein the power switch controller is included in the power supply controller. A device that can be connected to a network,
Power supply module,
A communication module for connecting the device to a network;
A power supply line connecting the power supply module and the communication module,
The network-connectable device, wherein the power supply module supplies power to the communication module via the power supply line. A network-connectable device according to claim 16,
Further, a network-connectable device comprising a processing device connected to the power supply line. A network-connectable device according to claim 16,
The network-connectable device, wherein the power supply module supplies power to the communication module via the power supply line even when a portion of the device other than the communication module is in a power-off state. A network-connectable device according to claim 17,
Further, a power control signal line for connecting the communication module and the power supply module,
The power supply module is connected via the power supply line based on a power-on request received from the communication module via the power supply control signal line, even when a part of the device other than the communication module is in a power-off state. A network-connectable device for supplying power to the processing device. A device that can be connected to a network,
Power and
A power controller,
A signal line connecting the power supply and the power supply controller;
A communication module for connecting the device to a network;
A power supply line connecting the power supply controller and each part of the device,
A power control signal line connecting the communication module and the power supply controller,
The network-connectable device, wherein the power supply controller controls a power supply destination supplied from the power supply. A network-connectable device according to claim 20, wherein
The power supply controller supplies power to the communication module via the power supply line, even when a part of the communication module other than the communication module is in a power-off state. Devices that can be connected to a network. A network-connectable device according to claim 21,
Furthermore, it has a processing device,
The power supply controller supplies power to the processing device via the power supply line when receiving a power-on request from the communication module via the power supply control signal line. machine. A network-connectable device according to claim 21,
The power supply controller supplies power to the processing device, and then supplies power to another part of the device via the power supply line, wherein the device is connectable to a network. A device that can be connected to a network,
Power and
A first device;
A second device;
A first power supply line connecting the power supply and the first device;
A second power supply line connecting the power supply and the second device,
The power supply is configured to start supplying power to the first line in response to a signal from the second device in a state where power is not supplied to the first line and power is supplied to the second line. machine. A network-connectable device according to claim 24,
The first device is a processing device, and the second device is a communication module.

Images