Information processing apparatus, control method and program

Abstract

To achieve a technology for preventing processing operation from being stopped even in the case that power supply from a power supply apparatus is interrupted in a state in which user cannot recognize while electrical equipment executes any processing.SOLUTION: An information processing apparatus includes connection means for connecting a battery and a power supply device, power reception means for receiving power from the power supply device, processing means for executing prescribe processing with the power of the power supply device or power of the battery, and control means for switching power to be supplied to the processing means to the power supplied from the power supply device or the power of the battery, and the control means switches the power to be supplied to the processing means to the power of the battery in the case that power supply of the power supply device is restarted within a prescribed time after the power supply of the power supply device is stopped.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a control technology for an information processing device that operates by power supplied from a power supply device.

Background Art

[0002] The USB (Universal Serial Bus) PD (Power Delivery) standard is a standard that enables power supply by connecting a power supply device and a power receiving device with a connector and a cable compliant with the USB Type-C standard. In the USB PD standard, a power supply device (source device) and a power receiving device (sink device) perform communication (negotiation) to determine the power that can be supplied or received based on a power rule consisting of a combination of a voltage value and a current value.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Among power supply devices compliant with the USB PD standard, there are devices equipped with a plurality of connectors to which a plurality of power receiving devices can be connected. Such a power supply device equipped with a plurality of connectors can negotiate with a plurality of power receiving devices connected via a general-purpose interface cable and supply optimal power to the power receiving devices.

[0005] Since negotiation is executed every time a power receiving device is connected to the power supply device, when another power receiving device different from the already connected power receiving device is connected to the power supply device, negotiation is executed. During negotiation, the power supply from the power supply device is interrupted, so the power supply to the already connected power receiving device is cut off, and the power supply is resumed after negotiation.

[0006] Therefore, when another power receiving device is connected while a power receiving device already connected to a power supply device is performing a predetermined process (e.g., printing), the power supply may be instantaneously interrupted, and it may not be possible to obtain a good processing result. In the example of printing, the power supply to the paper conveyance motor is instantaneously interrupted, causing the paper conveyance speed to fluctuate, and events such as streak-like lines being formed on the printed matter may occur, wasting paper and ink for reprinting. Also, if the power interruption due to negotiation is not notified to the user of the power receiving device, it is difficult for the user to recognize the instantaneous power interruption, so similar events may occur repeatedly, potentially wasting a large amount of paper and ink.

[0007] The present invention has been made in view of the above problems, and an object thereof is to realize a technique that prevents a processing operation from stopping even when the power supply from a power supply device is interrupted in a state unrecognizable to the user while a power receiving device is executing some process.

Means for Solving the Problems

[0008] In order to solve the above problems and achieve the object, an information processing device of the present invention includes a battery, connection means for connecting to a power supply device, power receiving means for receiving power from the power supply device, processing means for executing a predetermined process with the power of the power supply device or the power of the battery, and control means for switching the power supplied to the processing means to the power supplied from the power supply device or the power of the battery. When the power supply of the power supply device is resumed within a predetermined time after the power supply of the power supply device is stopped, the control means switches the power supplied to the processing means to the power of the battery.

Effects of the Invention

[0009] According to the present invention, it is possible to prevent a processing operation from stopping even when the power supply from a power supply device is interrupted in a state unrecognizable to the user while a power receiving device is executing some process.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiments, not all of these plurality of features are essential to the invention, and the plurality of features may be arbitrarily combined. Further, in the accompanying drawings, the same or similar configurations are denoted by the same reference numerals, and redundant descriptions are omitted.

[0012] [First Embodiment] Next, the first embodiment will be described with reference to FIGS. 1 to 3.

[0013] In the present embodiment, an example of a system in which the power receiving device is an information processing device such as a printing device, the power feeding device is a power supply device such as a charger, and a plurality of power receiving devices can be connected to the power feeding device will be described.

[0014] FIG. 1 is a perspective view illustrating a system including a power receiving device and a power feeding device according to the present embodiment.

[0015] In FIG. 1, a printing device 100 as a power receiving device and a power supply device 200 as a power feeding device are connected so as to enable communication and power transmission and reception through a general-purpose interface cable 300. The printing device 100 is, for example, a portable printer or a mobile printer that is small, lightweight, and suitable for portability. The power supply device 200 is, for example, a general-purpose charger that uses an AC commercial power supply, a mobile battery, or a cigarette socket as a power source. The general-purpose interface cable (hereinafter abbreviated as a connection cable) 300 is, for example, a USB Type-C cable. The printing device 100 and the power supply device 200 are provided with connectors compliant with the USB Type-C standard and can be electrically connected by a connection cable 300 compliant with the USB Type-C standard.

[0016] In the present embodiment, the printing device 100 and the power supply device 200 operate as a power receiving device (sink device) and a power feeding device (source device) compliant with the USB (Universal Serial Bus) PD (Power Delivery) standard. The power receiving device (sink device) and the power feeding device (source device) perform negotiation to determine the supply power from combinations of a predetermined voltage value (for example, 5V, 9V, 15V, 20V) and a current value (for example, 3A, 5A) based on a power rule. The power supply device 200 can supply a maximum of 100 W of power based on the USB PD standard.

[0017] The printing device 100 includes an operation unit 101 and a display unit 102. The operation unit 101 and the display unit 102 are provided on the upper surface of the printing device 100. In the present embodiment, the operation unit 101 is a power button, and the user can turn on the power of the printing device 100 by operating the power button. The display unit 102 includes a light source such as an LED that can blink or light up. The display unit 102 lights up when the power of the printing device 100 is turned on and blinks according to the operating state of the printing device 100.

[0018] In addition, the printing apparatus 100 includes a connector 103. The connector 103 is provided on the side surface portion of the printing apparatus 100. The connector 103 is, for example, a receptacle connector compliant with the USB Type-C standard, and can be electrically connected to the power supply apparatus 200 via a connection cable 300.

[0019] The power supply apparatus 200 includes a connector 201 and a connection terminal 202. The connection terminal 202 is configured to be connectable to an AC commercial power supply. The connector 201 is a receptacle connector compliant with the USB Type-C standard. The power supply apparatus 200 has a plurality (for example, four) of connectors 201, and can be simultaneously connected to a plurality of power receiving devices via the connection cable 300, and communication and power transmission and reception are possible with the connected power receiving devices.

[0020] The connection cable 300 includes connectors 301. The connectors 301 are provided at both ends of the connection cable 300. The connector 301 is a plug connector compliant with the USB Type-C standard.

[0021] FIG. 2 is a block diagram illustrating the hardware configuration of the printing apparatus 100 according to the first embodiment.

[0022] The printing apparatus 100 includes a PD controller 104 compliant with the USB PD standard. When a power supply apparatus 200 compliant with the USB PD standard is connected to the connector 103 via the connection cable 300, the PD controller 104 executes negotiation and requests the necessary power from the power supply apparatus 200. The power supply apparatus 200 supplies the power requested from the printing apparatus 100 through negotiation. The power supply apparatus 200 stops power supply during negotiation with the printing apparatus 100, and starts power supply after negotiation is completed. The time required for negotiation is about 10 to 500 msec. When the power supply apparatus 200 is connected to the printing apparatus 100, negotiation is completed instantaneously and power supply is started. The PD controller 104 constantly monitors the power supplied from the power supply apparatus 200, and can detect that the power supply from the power supply apparatus 200 has been cut off.

[0023] The charge / discharge control unit 105 executes charge control for charging the battery 106 using the power supplied from the power supply device 200 and discharge control for supplying the power of the battery 106 to the power control unit 107 in accordance with the control of the PD controller 104.

[0024] The battery 106 is a secondary battery that can be attached to and detached from the printing device 100, and is, for example, a lithium-ion battery that can supply the power for the printing device 100 to operate.

[0025] The power control unit 107 performs control to switch the power supplied to the control unit 109 and the printing unit 112 to the power supplied from the power supply device 200 or the power of the battery 106 according to the on state or off state of the switch 108.

[0026] The PD controller 104 switches the switch 108 to the on state or the off state based on the information acquired from the power supply device 200. When the switch 108 is in the on state, the PD controller 104 outputs the power supplied from the power supply device 200 to the power control unit 107. When the switch 108 is in the off state, the PD controller 104 outputs all the power supplied from the power supply device 200 to the charge / discharge control unit 105, which is used for charging the battery 106.

[0027] The control unit 109 includes a processor (CPU) that performs arithmetic processing and control processing of the printing device 100.

[0028] The storage unit 110 is a non-volatile memory that stores constants, programs (firmware), etc. for the operation of the control unit 109, and is, for example, an EEPROM or a flash memory. The program in this embodiment is a program for executing the flowcharts described later in FIGS. 3, 5, and 7.

[0029] The memory unit 111 is a volatile memory where constants, variables for the operation of the control unit 109, programs read from the storage unit 110, etc. are loaded, and is, for example, a RAM. The control unit 109 controls each component of the printing apparatus 100 by loading the program stored in the storage unit 110 into the memory unit 111 and executing it.

[0030] The printing unit 112 executes a printing process for printing image data on paper. The printing unit 112 includes a recording head, a head drive circuit, a paper feed roller, a roller drive motor, a motor drive circuit, etc. The communication unit 113 is an interface connectable to an external device 400 by wireless communication or wired communication, and includes a communication circuit for transmitting and receiving data to and from the external device 400. The external device 400 is, for example, a communication device such as a smartphone or an information processing device such as a tablet computer held by a user. The printing apparatus 100 receives image data and a print start command from the external device 400 via the communication unit 113. The control unit 109 controls the printing unit 112 based on the print start command received from the external device 400 and executes a printing process for printing the image data on paper. Also, the printing apparatus 100 transmits status information such as the operation status of the printing apparatus 100 to the external device 400 via the communication unit 113. The external device 400 notifies the user by displaying information based on the status information received from the printing apparatus 100.

[0031] The power control unit 107 controls the power supplied to the control unit 109 and the printing unit 112. When the switch 108 is in the on state, the power control unit 107 directly supplies the power supplied from the power supply device 200 to the control unit 109 and the printing unit 112. Since the control unit 109 and the printing unit 112 can operate with the power supplied from the power supply device 200, they do not consume the power of the battery 106, and the remaining amount of the battery 106 does not decrease. On the other hand, when the power control unit 107 turns off the switch 108, it supplies the power of the battery 106 to the control unit 109 and the printing unit 112. Since the control unit 109 and the printing unit 112 can operate with only the power of the battery 106, the remaining amount of the battery 106 decreases.

[0032] Next, the power supply control of the printing apparatus 100 according to the first embodiment will be described.

[0033] FIG. 3 is a flowchart illustrating the power supply control of the printing apparatus 100 according to the first embodiment. FIG. 4 illustrates a warning screen displayed on the external device 400 in the power supply control of the printing apparatus 100 according to the first embodiment.

[0034] Note that the processing in FIG. 3 is realized by the control unit 109 loading a program stored in the storage unit 110 into the memory unit 111 and executing it to control each component of the printing apparatus 100. Also, at the start point of the processing in FIG. 3, the power of the printing apparatus 100 is turned on, and the printing apparatus 100 and the power supply device 200 connected by the connection cable 300 complete negotiation, and the power supply device 200 is in a state where it can supply power to the printing apparatus 100. The same applies to FIGS. 5 and 7 described later.

[0035] In step S101, the control unit 109 switches the switch 108 to the on state by the power control unit 107. The power control unit 107 supplies the power supplied from the power supply device 200 to the control unit 109 and the printing unit 112.

[0036] In step S102, the control unit 109 determines whether the power supplied from the power supply device 200 has been cut off. If the control unit 109 determines that the PD controller 104 has detected that the power supply of the power supply device 200 has been cut off, the process proceeds to step S103. If the control unit 109 determines that the PD controller 104 has not detected the cut-off of the power supply of the power supply device 200 and the power is continuously supplied from the power supply device 200, the process proceeds to step S107.

[0037] In step S103, the control unit 109 starts timing by a timer and measures the elapsed time since the power supply of the power supply device 200 was cut off.

[0038] In step S104, the control unit 109 determines whether the power supply of the power supply device 200 has resumed within a predetermined time after the power supply of the power supply device 200 is cut off. When the PD controller 104 detects that the power supply of the power supply device 200 has resumed, the control unit 109 refers to the measurement time of the timer started in step S103 and determines whether the power supply cut-off time of the power supply device 200 is within the predetermined time. If the control unit 109 determines that the time during which the power supply of the power supply device 200 was cut off is within the predetermined time, the process proceeds to step S105. If the control unit 109 determines that the time during which the power supply of the power supply device 200 was cut off exceeds the predetermined time, the process proceeds to step S106.

[0039] In step S105, the control unit 109 stores in the memory unit 111 first information indicating that the power supply has been instantaneously cut off in the memory unit 111.

[0040] In step S106, the control unit 109 erases the first information stored in the memory unit 111. The predetermined time is set to about 1 second, but is not limited thereto and may be set to other times.

[0041] In step S107, the control unit 109 determines whether the communication unit 113 has received a print instruction from the external device 400. If the control unit 109 determines that a print instruction has been received from the external device 400, the process proceeds to step S108. If the control unit 109 determines that no print instruction has been received, the process returns to step S102.

[0042] In step S108, the control unit 109 determines whether the first information is stored in the memory unit 111. If the control unit 109 determines that the first information is stored in the memory unit 111, the process proceeds to step S109. If the control unit 109 determines that the first information is not stored in the memory unit 111, the process proceeds to step S111.

[0043] In step S109, the control unit 109 switches the switch 108 to the off state by the power control unit 107. The power control unit 107 switches the power supplied to the control unit 109 and the printing unit 112 from the power supplied by the power supply device 200 to the power of the battery 106.

[0044] In step S110, the control unit 109 transmits the first information and a display instruction to the external device 400. The external device 400 displays a warning screen exemplified in FIG. 4 based on the first information and the display instruction received from the printing device 100. In the example of FIG. 4, the first information is information for notifying the user that the power supply is switched from the power supply of the power supply device 200 to the power supply of the battery 106, and the remaining amount of the battery 106 may decrease.

[0045] In step S111, the control unit 109 starts and ends the printing process by the printing unit 112 based on the image data and the printing instruction received from the external device 400. If the control unit 109 determines in step S108 that the first information is not stored in the memory unit 111, the control unit 109 starts the printing process with the switch 108 remaining in the on state.

[0046] In step S104, the predetermined time is set to about 1 second. If an instantaneous power cut within 1 second occurs, the first information is stored in the memory unit 111, and in step S108, the on / off state of the switch 108 is controlled based on the first information in the memory unit 111 to start printing.

[0047] As a factor for instantaneous power interruption, it is assumed that after the power supply device 200 and the printing device 100 are connected, other power receiving devices excluding the printing device 100 are connected to the power supply device 200 and negotiation is executed again. When the user connects or disconnects other power receiving devices during the printing process of the printing device 100, the power supply device 200 negotiates again with all power receiving devices including the connected printing device 100. During the negotiation, since the power supply device 200 stops power supply, if the switch 108 is in the on state, the power supply to the printing unit 112 is temporarily stopped. For this reason, the power supply to the paper conveyance motor is instantaneously interrupted, causing events such as the paper conveyance speed fluctuating and streak-like lines being formed on the printed matter, wasting paper and ink for reprinting.

[0048] Therefore, in this embodiment, when it is detected in step S103 that an instantaneous power interruption has occurred and the first information is stored in the memory unit 111 in step S108, it is presumed that negotiation is likely to be executed after the power supply device 200 and the printing device 100 are connected. In step S109, the switch 108 is switched to the off state to switch the power supply from the power supply device 200 to the power supply from the battery 106. As a result, since the power to the printing unit 112 during printing is supplied from the battery 106, even if an instantaneous interruption occurs due to the negotiation between the printing device 100 and the power supply device 200 during printing, the impact on the printed matter can be reduced. Also, in order to notify the user in step S110 that the power supply has been switched to the battery 106, the user can recognize that although the remaining amount of the battery 106 may decrease due to the printing process, this is not a malfunction.

[0049] Also, when the first information is not stored in the memory unit 111 in step S108, it is presumed that no negotiation has occurred after the power supply device 200 and the printing device 100 are connected. In this case, since it is unlikely that the printing device 100 and the power supply device 200 will execute negotiation again during the printing process, the printing process is started with the switch 108 in the on state, and the power supplied from the power supply device 200 is directly supplied to the printing unit 112. As a result, the power of the battery 106 is not consumed and the remaining amount of the battery 106 does not decrease.

[0050] In this embodiment, by providing the switch 108 between the PD controller 104 and the power control unit 107, a configuration in which power can be directly supplied from the power supply device 200 to the power control unit 107 is illustrated, but the present invention is not limited to this. For example, a configuration in which only the charge / discharge control unit 105 controls without providing the switch 108 may be adopted. All the power supplied from the power supply device 200 is sent to the charge / discharge control unit 105 by the PD controller 104, and the charge / discharge control unit 105 supplies all the power to the power control unit 107 without supplying power to the battery 106, so that the same control as when the switch 108 is provided can be realized.

[0051] [Second Embodiment] Next, a second embodiment will be described with reference to FIGS. 2, 5, and 6.

[0052] FIG. 5 is a flowchart illustrating power supply control of the printing device 100 according to the second embodiment. FIG. 6 illustrates a warning screen displayed on the external device 400 in the power supply control of the printing device 100 according to the second embodiment.

[0053] The configuration of the printing device 100 according to the second embodiment is the same as that of FIG. 2 of the first embodiment.

[0054] The processes of steps S201 to S208 are the same as those of steps S101 to S108 in FIG. 3.

[0055] In step S208, when the control unit 109 determines that the first information is stored in the memory unit 111, the process proceeds to step S209. When it determines that the first information is not stored in the memory unit 111, the process proceeds to step S214.

[0056] In step S209, the control unit 109 transmits the second information and a display instruction to the external device 400. The external device 400 displays a warning screen exemplified in FIG. 6 based on the second information and the display instruction received from the printing device 100. In the example of FIG. 6, the second information is information for prompting the user to remove the power receiving devices other than the printing device 100 connected to the power supply device 200 and not to connect other power receiving devices other than the printing device 100 to the power supply device 200 after the start of printing.

[0057] In step S210, similar to step S102, the control unit 109 determines whether the power supplied from the power supply device 200 has been cut off. When the control unit 109 determines that the PD controller 104 has detected that the power supply of the power supply device 200 has been cut off, the process proceeds to step S211. When the control unit 109 determines that the PD controller 104 has not detected the cut-off of the power supply of the power supply device 200 and that the power is continuously supplied from the power supply device 200, the process proceeds to step S213.

[0058] In step S211, similar to step S103, the control unit 109 starts timing by the timer and measures the elapsed time since the power supply of the power supply device 200 was cut off.

[0059] In step S212, similar to step S104, the control unit 109 determines whether the power supply of the power supply device 200 is restarted within a predetermined time after the power supply of the power supply device 200 is cut off. When the PD controller 104 detects that the power supply of the power supply device 200 is restarted, the control unit 109 refers to the measured time of the timer started in step S211 and determines whether the power supply cut-off time of the power supply device 200 is within the predetermined time. If the control unit 109 determines that the time during which the power supply of the power supply device 200 was cut off is within the predetermined time, the process proceeds to step S214. If the control unit 109 determines that the time during which the power supply of the power supply device 200 was cut off exceeds the predetermined time, the process proceeds to step S213.

[0060] In step S213, similar to step S109, the control unit 109 switches the switch 108 to the off state by the power control unit 107. The power control unit 107 switches the power supplied to the control unit 109 and the printing unit 112 from the power supplied from the power supply device 200 to the power of the battery 106.

[0061] In step S214, similar to step S111, the control unit 109 starts the printing process by the printing unit 112 based on the image data received from the external device 400 and the printing instruction, and ends the process. Note that when the time during which the power supply of the power supply device 200 was cut off in step S212 is within the predetermined time, the control unit 109 starts the printing process with the switch 108 in the on state.

[0062] In this embodiment, when it is detected that an instantaneous power cut has occurred in step S204 and the first information is stored in the memory unit 111 in step S208, it is presumed that negotiation is likely to be executed after the power supply device 200 and the printing device 100 are connected. Therefore, in step S209, second information for prompting the user to remove other power receiving devices connected to the power supply device 200 is displayed on the external device 400. When the user removes other power receiving devices from the power supply device 200 according to the second information, the power supply device 200 executes negotiation again with the printing device 100, and thus an instantaneous power cut occurs. Therefore, in this embodiment, when it is detected in steps S210 to S212 that an instantaneous power cut has occurred, it can be determined that the user has removed other power receiving devices from the power supply device 200 according to the second information. In this case, since the possibility that the power supply device 200 executes negotiation again with the printing device 100 during the printing process is reduced, the printing process is started with the switch 108 in the on state.

[0063] On the other hand, when it cannot be detected in steps S210 to S212 that an instantaneous power cut has occurred, it can be determined that the user has not taken appropriate measures according to the second information. In this case, during the printing process, the user may connect or disconnect other power receiving devices from the power supply device 200, and the power supply device 200 executes negotiation again with the printing device 100, and an instantaneous power cut is likely to occur. Therefore, in this embodiment, in step S213, the printing process is started after switching the switch 108 to the off state. Thereby, even if negotiation is executed again during the printing process and an instantaneous power cut occurs, the possibility of printing defects can be reduced.

[0064] [Third Embodiment] Next, with reference to FIGS. 2, 7, and 8, the third embodiment will be described.

[0065] FIG. 7 is a flowchart illustrating the power supply control of the printing apparatus 100 according to the third embodiment. FIG. 8 illustrates a warning screen displayed on the external device 400 in the power supply control of the printing apparatus 100 according to the third embodiment.

[0066] The configuration of the printing apparatus 100 according to the third embodiment is the same as that of FIG. 2 of the first embodiment.

[0067] The processes of steps S301 to S310 are the same as those of steps S101 to S108, S110, and S111 in FIG. 3.

[0068] In the present embodiment, even when it is detected in step S304 that an instantaneous power cut has occurred and the first information is stored in the memory unit 111 in step S308, instead of switching the switch 108 to the off state as in the first and second embodiments, in step S309, the control unit 109 transmits the third information and a display instruction to the external device 400. The external device 400 displays the warning screen illustrated in FIG. 8 based on the third information and the display instruction received from the printing apparatus 100. In the example of FIG. 8, the third information is information for prompting the user not to connect or remove the power receiving devices other than the printing apparatus 100 connected to the power supply device 200 during printing, and for notifying the user that the printing process may stop due to an instantaneous power cut. When the user operates the print start button 410 in FIG. 8 in response to the third information, the process proceeds to step S310, and the control unit 109 receives a user operation to start the printing process and starts the printing process by the printing unit 112.

[0069] In this embodiment, when it is detected that an instantaneous power cut has occurred in step S304 and the first information is stored in the memory unit 111 in step S308, it is presumed that negotiation is likely to be executed after the power supply device 200 and the printing device 100 are connected. Therefore, in step S309, by displaying third information for prompting the user not to connect or disconnect other power receiving devices other than the printing device 100 to the power supply device 200 to the external device 400, the possibility that the power supply device 200 executes negotiation again with the printing device 100 during printing is reduced. Further, even if the user connects or disconnects other power receiving devices other than the printing device 100 to the power supply device 200 during printing, causing the power supply device 200 to execute negotiation again with the printing device 100 and resulting in a printing defect, by notifying the user of the third information as shown in FIG. 8 before printing, the user can recognize the cause of the printing defect and prevent the occurrence of printing defects due to the same cause.

[0070] In the above-described embodiment, an example of a printing device is described as the power receiving device connected to the power supply device 200. However, the present invention is not limited to this, and a mobile communication device may be used as the power receiving device other than the printing device. A mobile communication device that receives power supply from a power supply device to which a plurality of power receiving devices can be connected negotiates between the power supply device and the mobile communication device each time another power receiving device other than the mobile communication device is connected to the power supply device. Therefore, the power supply from the power supply device to the mobile communication device may be instantaneously cut off, and the communication process may be temporarily stopped. Further, when the connection and disconnection between the power supply device and other power receiving devices are repeated, the phenomenon of temporary interruption of communication is likely to occur frequently. Since it is difficult for the user to identify the cause of the communication interruption, when a plurality of power receiving devices can be connected to the power supply device, it is desirable to switch the power supply of the mobile communication device from the power supply device to the battery, similar to the printing device.

[0071] [Other Embodiments] The present invention can also be realized by supplying a program that implements one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and causing one or more processors in a computer of the system or apparatus to read and execute the program. It can also be realized by a circuit (for example, ASIC) that implements one or more functions.

[0072] The invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the claims are appended to disclose the scope of the invention.

[0073] The disclosure of this specification includes the following information processing apparatuses, control methods, and programs. [Configuration 1] An information processing apparatus, a battery, connection means for connecting to a power supply device, power receiving means for receiving power from the power supply device, processing means for executing a predetermined process with the power of the power supply device or the power of the battery, control means for switching the power supplied to the processing means to the power supplied from the power supply device or the power of the battery, and the control means switches the power supplied to the processing means to the power of the battery when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped. An information processing apparatus characterized by this. [Configuration 2] The information processing apparatus according to Configuration 1, wherein the control means controls the processing means to start the predetermined process with the power of the battery after switching the power supplied to the processing means to the power of the battery. [Configuration 3] The control means stores first information indicating that the power supply of the power supply device has been restarted within a predetermined time after the power supply of the power supply device is stopped in a memory, When the power supply of the power supply device is restarted after the lapse of the predetermined time since the power supply of the power supply device was stopped, the information processing apparatus according to Configuration 1 or 2, characterized in that the first information stored in the memory is erased. [Configuration 4] The information processing apparatus according to Configuration 3, characterized in that the control means switches the power supplied to the processing means based on the first information to the power supplied from the power supply device or the power of the battery. [Configuration 5] The information processing apparatus according to any one of Configurations 1 to 4, characterized in that when the control means switches the power supplied to the processing means to the power of the battery, the control means notifies the user of the second information indicating that the power supplied to the processing means has been switched to the power of the battery and that the remaining amount of the battery may decrease. [Configuration 6] The information processing apparatus according to any one of Configurations 1 to 4, characterized in that when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the control means removes other power receiving devices except the information processing apparatus connected to the power supply device, and notifies the user of third information for prompting not to connect the other power receiving devices to the power supply device after the processing means starts the predetermined processing. [Configuration 7] The information processing apparatus according to Configuration 6, characterized in that when the power supply of the power supply device is not restarted within a predetermined time after the control means notifies the third information, the control means switches the power supplied to the processing means to the power of the battery. [Configuration 8] Even when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the control means notifies the user of fourth information for prompting not to connect or disconnect other power receiving devices except the information processing device connected to the power supply device during the predetermined process, and when receiving a user operation to start the predetermined process, controls the processing means to start the predetermined process without switching the power supplied to the processing means to the power of the battery. The information processing device according to any one of Configurations 1 to 4. [Configuration 9] Having communication means for communicating with an external device The control means displays the information on the external device. The information processing device according to any one of Configurations 5 to 8. [Configuration 10] The control means controls the processing means to start the predetermined process in response to receiving an instruction to start the predetermined process from the external device. The information processing device according to Configuration 9. [Configuration 11] Having switch means for switching the power supplied to the processing means to the power of the power supply device or the power of the battery The power supplied from the power supply device is directly supplied to the processing means via the switch means. The information processing device according to any one of Configurations 1 to 10. [Configuration 12] The power supply device is capable of simultaneously supplying power to a plurality of power receiving devices connected to the power supply device. The information processing device according to any one of Configurations 1 to 11. [Configuration 13] The information processing device and the power supply device comply with the USB (Universal Serial Bus) PD (Power Delivery) standard The connection means complies with the USB Type-C standard. The information processing device according to any one of Configurations 1 to 12. [Configuration 14] The information processing device is a printing device, and the predetermined process is a printing process. The information processing device according to any one of Configurations 1 to 13. [Configuration 15] The information processing device is a mobile communication device, and the predetermined process is a communication process. The information processing device according to any one of Configurations 1 to 13. [Configuration 16] A control method for an information processing device, The information processing device is, a battery, connection means for connecting to a power supply device, power receiving means for receiving power from the power supply device, and processing means for executing a predetermined process with the power of the power supply device or the power of the battery. The control method is, characterized by having a step of switching the power supplied to the processing means to the power supplied from the power supply device or the power of the battery. In the step, when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the power supplied to the processing means is switched to the power of the battery. A control method characterized by this. [Configuration 17] A program for causing a computer to function as the information processing device according to any one of Configurations 1 to 15.

Description of Signs

[0074] 100... Printing device, 104... PD controller, 106... Battery, 107... Power control unit, 108... Switch, 109... Control unit, 110... Memory unit, 111... Printing unit, 112... Communication unit, 200... Power supply device, 300... Connection cable, 400... External device

Claims

1. An information processing device, comprising a battery, connection means for connecting to a power supply device, power receiving means for receiving power from the power supply device, processing means for executing a predetermined process using the power of the power supply device or the power of the battery, and control means for switching the power supplied to the processing means to the power supplied from the power supply device or the power of the battery, wherein when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the control means switches the power supplied to the processing means to the power of the battery. The information processing device is characterized by this.

2. The information processing device according to claim 1, wherein after the control means switches the power supplied to the processing means to the power of the battery, the control means controls the processing means to start the predetermined process using the power of the battery.

3. The control means stores first information indicating that the power supply of the power supply device has been restarted within a predetermined time after the power supply of the power supply device is stopped in a memory, and when the power supply of the power supply device is restarted after the predetermined time has elapsed since the power supply of the power supply device was stopped, the control means erases the first information stored in the memory. The information processing device according to claim 1 or 2 is characterized by this.

4. The information processing device according to claim 3, wherein the control means switches the power supplied to the processing means to the power supplied from the power supply device or the power of the battery based on the first information.

5. The information processing device according to claim 1, wherein when the control means switches the power supplied to the processing means to the power of the battery, the control means notifies the user of the second information indicating that the power supplied to the processing means has been switched to the power of the battery and that the remaining amount of the battery may decrease.

6. The information processing device according to claim 1, wherein when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the control means removes other power receiving devices except the information processing device connected to the power supply device, and after the processing means starts the predetermined process, the control means notifies the user of third information for prompting not to connect the other power receiving devices to the power supply device.

7. The control means, after notifying the third information, switches the power supplied to the processing means to the power of the battery when the power supply of the power supply device is not restarted within a predetermined time after the power supply of the power supply device is stopped. The information processing apparatus according to claim 6.

8. Even when the power supply of the power supply device is restarted within a predetermined time after the power supply of the power supply device is stopped, the control means notifies the user of fourth information for prompting not to connect and disconnect other power receiving devices except the information processing device connected to the power supply device during the predetermined process, and when receiving a user operation to start the predetermined process, controls the processing means to start the predetermined process without switching the power supplied to the processing means to the power of the battery. The information processing apparatus according to claim 1.

9. Having communication means for communicating with an external device, The control means displays the information on the external device. The information processing apparatus according to any one of claims 5 to 8.

10. The control means controls the processing means to start the predetermined process in response to receiving an instruction to start the predetermined process from the external device. The information processing apparatus according to claim 9.

11. Having switch means for switching the power supplied to the processing means to the power of the power supply device or the power of the battery, The power supplied from the power supply device is directly supplied to the processing means via the switch means. The information processing apparatus according to claim 1.

12. The power supply device is capable of supplying power to a plurality of power receiving devices connected to the power supply device at the same time. The information processing apparatus according to claim 1.

13. The information processing apparatus and the power supply device comply with the USB (Universal Serial Bus) PD (Power Delivery) standard, The connection means complies with the USB Type-C standard. The information processing apparatus according to claim 1.

14. The information processing apparatus is a printing apparatus, and the predetermined process is a printing process. The information processing apparatus according to claim 1.

15. The information processing apparatus is a mobile communication device, and the predetermined process is a communication process. The information processing apparatus according to claim 1.

16. A control method for an information processing device, wherein the information processing device comprises a battery, connection means for connecting to a power supply device, power receiving means for receiving power from the power supply device, and processing means for executing a predetermined process using the power of the power supply device or the power of the battery, wherein the control method comprises a step of switching the power supplied to the processing means between the power supplied from the power supply device and the power of the battery, and in the step, when the power supply from the power supply device is restarted within a predetermined time after the power supply from the power supply device is stopped, the power supplied to the processing means is switched to the power of the battery. A control method characterized by this.

17. A program for causing a computer to function as the information processing device according to any one of Claims 1, 2, 5 to 8, and 11 to 15.

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