JP2022047907A - Electronic device, controlling method of the same, and program - Google Patents

Abstract

To make it possible to ensure uptime through power-saving control and reduce the time and effort required to make settings for controlling the transition to a highly functional non-power-saving mode.SOLUTION: A subject to be captured in high quality is defined in advance, and when an imaging apparatus is operated, the subject is detected from a captured image, and if the subject and a predefined subject match, the mode is shifted from a power-saving mode to a non-power-saving mode.SELECTED DRAWING: Figure 1

Description

The present invention relates to electronic devices, control methods and programs for electronic devices.

In recent years, electronic cameras that have been made lighter and more compact by omitting an optical finder and a mirror have been put into practical use. This type of electronic camera replaces the function of the optical finder by capturing the light obtained from the lens with the image sensor inside the camera and displaying the developed image on the electronic viewfinder or the LCD monitor on the back of the camera in real time. do. On the other hand, since it is necessary to always use the LCD monitor when shooting, there is a disadvantage that a large amount of battery is consumed and the shooting time is short as compared with the conventional optical viewfinder type camera.
In order to alleviate this disadvantage, efforts have been made so far to reduce battery consumption and extend the shooting time by installing a power saving mode such as lowering the frame rate when displaying on the LCD monitor and the frame rate when recording video. It is done. As a general operation, it is usually started in the power saving mode to secure the usable time of the camera as long as possible, and shift to the non power saving mode in the scene important to the user to record high quality images. Is desirable.
However, in order to shift from such a power saving mode to a non-power saving mode, it is necessary to switch to a dedicated circuit, so that the user needs to give an instruction to switch the mode from the menu screen of the camera before shooting. Therefore, it is necessary for the user to switch to the power saving mode or the non-power saving mode after understanding the functional restrictions in advance according to the shooting situation, whether the user wants to shoot with the highest image quality or maintain the power saving state. It is a burden for us.

Various proposals have been made as measures against such a situation where it is difficult to switch between the power saving mode and the non-power saving mode. Patent Document 1 describes a technique for determining whether or not a predetermined condition is satisfied in a predetermined task to be periodically executed during the power saving mode, and shifting to the non-power saving mode and executing the task only when the condition is satisfied. It has been disclosed. According to this technology, if it is expected that an error will end if it is executed at that timing, it is possible to avoid meaningless battery consumption for failure processing by not switching to the non-power saving mode. ..

Japanese Unexamined Patent Publication No. 2007-102670

However, since the technique described in Patent Document 1 periodically determines whether or not a preset fixed condition is satisfied, the condition is dynamically changed according to a change in the remaining battery level. It's difficult. Further, in the technology described in Patent Document 1, it is essential to shift to the non-power saving mode in order for the system to fulfill the functional requirements, so that the long-term operating time can be maintained while balancing the functionality and the power saving control. It is difficult to secure.

In view of the above-mentioned problems, it is an object of the present invention to secure an operating time by power saving control and to reduce the trouble of setting for control to shift to a high-performance non-power saving mode. ..

The electronic device according to the present invention is an electronic device that operates in a non-power saving mode or a power saving mode in which power consumption is suppressed as compared with the non-power saving mode, and detects a subject from an image acquired by the electronic device. Detection means, a registration means for registering a specific subject as a detection target, a determination means for determining whether or not the subject detected by the detection means is a subject registered by the registration means, and the electronic device. Is the power saving mode, and when the determination means determines that the subject detected by the detection means is the subject registered by the registration means, the power saving mode is changed to the non-power saving mode. It is characterized by having a first transition means for transitioning to.

According to the present invention, it is possible to secure the operating time by the power saving control and reduce the trouble of setting for the control to shift to the high-performance non-power saving mode.

It is a block diagram which shows an example of the hardware composition of an electronic camera. It is a figure explaining the camera control method of this embodiment. It is a figure explaining the camera control method of this embodiment. It is a figure which showed an example of the table which an electronic camera stores. It is a flowchart which shows an example of the basic processing procedure which concerns on an operation. It is a flowchart explaining an example of the registration processing procedure of the subject to be detected in this embodiment. It is a flowchart explaining an example of a series of processing procedures concerning the transition control to a power saving mode and a non-power saving mode. It is a flowchart explaining another example of a series of processing procedures concerning the transition control to a power saving mode and a non-power saving mode.

(First Embodiment)
Hereinafter, the first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing an example of the hardware configuration of the electronic camera 100 according to the present embodiment. Hereinafter, an electronic camera will be described as an example of an electronic device. The electronic camera 100 includes a CPU 101, an input unit 102, a display unit 103, a communication unit 104, a bus 105, a ROM 106, a RAM 107, a storage 108, and an image pickup unit 109.
The CPU 101 controls various systems of the electronic camera 100 such as focusing, imaging, still image video recording, power saving mode, and non-power saving mode in response to a command from the user, and is connected to the bus 105 via the bus 105. Control each device. The power saving mode and the non-power saving mode will be described in detail with reference to FIG.
The input unit 102 has various physical buttons, a touch panel, and the like provided on the camera body such as a shutter, and accepts various operations by the user.
The display unit 103 is a display device such as an electronic viewfinder or a liquid crystal monitor. The display unit 103 includes a display unit 103 having an input function such as a touch panel. It is also possible to output a video signal to an external display.
The communication unit 104 exchanges data with the outside via a wired or wireless communication path.
The bus 105 transfers an address signal and a control signal instructing each device to be controlled by the CPU 101. It also transfers data between each device.

The ROM 106 is a read-only non-volatile memory. Stores the boot program and the like by the CPU 101. The boot program reads the operating system to be booted and various control programs from the storage 108 selected as the boot device at the time of system boot into the RAM 107, and causes the CPU 101 to execute the boot program. The control program will be described later with reference to a flowchart.
The RAM 107 is a memory that can be read and written. Used for primary storage of various data used in each device. Various work areas that store data required for processing and various data whose values are changed during processing are stored. Various data used in the processing flow described later are read out here.
The storage 108 includes a removable medium such as a non-volatile memory or an SD card, and stores a large amount of data. The storage 108 not only stores a program for controlling the electronic camera 100 and various management data used in the processing described later, but also stores still image and moving image data files taken by the user, which is necessary. The contents will be updated from time to time.
The image pickup unit 109 has an image sensor and converts the light obtained from the lens into an electric signal to generate an image.

The electronic camera 100 configured as described above operates in response to various events from the input unit 102 and the like. When the interrupt from the input unit 102 or the like is supplied, the interrupt signal is sent to the CPU 101. An event is generated in response to the interrupt signal, and the CPU 101 reads various instructions stored in the ROM 106 or the RAM 107 in response to the event, and various controls are performed by executing the CPU 101.
The CPU of the electronic camera 100 of the present embodiment functions as various means by executing a program. A control circuit such as an ASIC that operates in cooperation with the CPU may function as these means. Further, these means may be realized by the cooperation between the CPU and the control circuit. Further, the CPU does not have to be a single CPU, and may be a plurality of CPUs. In this case, the plurality of CPUs are distributed to execute the process. The means realized by the CPU executing the software may be realized by a dedicated circuit.

FIG. 2 is a diagram illustrating the camera control method of the present embodiment.
The images 203 to 208 are images developed by capturing the light obtained from the lens with an image sensor in the camera. Here, these images are arranged in chronological order from the images 203 to 208, and are displayed in order on the electronic viewfinder and the liquid crystal monitor on the back of the camera at an appropriate frame rate.
The electronic camera 100 of the present embodiment shifts to two types of operation modes, a power saving mode and a non-power saving mode. In the power saving mode, power consumption can be suppressed by reducing the frame rate or the like. On the other hand, in the non-power saving mode, by increasing the frame rate to the maximum, a subject moving at high speed can be displayed on an electronic viewfinder or an LCD monitor with low delay. That is, in the non-power saving mode, the user does not easily miss a photo opportunity when shooting a still image, and if it is a moving image, by recording it at a high frame rate, it is possible to record a high-quality moving image with smooth movement. Such an electronic camera can be used for as long as possible by basically setting it to operate in the power saving mode. However, the switching control of these modes needs to be set diligently according to the shooting scene after the user understands the advantages and disadvantages of each mode, which is a burden for the user who does not have abundant knowledge of the camera.

Therefore, in the present embodiment, the detection target definition table 202 is provided in the electronic camera 100, and the subject that the user wants to record with high quality is defined in advance. The CPU 101 switches each mode according to this definition and the situation of the electronic camera 100, thereby reducing the burden on the user.
A specific control method will be described in the order of images 203 to 208. Here, a person's face is defined as a subject in the detection target definition table 202, and a state is set to shift from the power saving mode to the non-power saving mode when the subject includes a person's face. Represents.
First, after starting the electronic camera 100, it operates in the power saving mode and acquires the image 203. Next, the image 204 is acquired and the face of a person is detected as the subject. When a subject is detected, the CPU 101 refers to the detection object definition table 202 and determines whether or not the detected subject includes a specific subject defined in advance by the user. Since the subject detected in the image 204 includes the face of a person defined in the detection object definition table 202, the electronic camera 100 shifts from the power saving mode to the non-power saving mode. Since the period from images 205 to 206 operates in the non-power saving mode, the user can accurately capture the shutter timing at a high frame rate. Next, when the specific subject is no longer detected in the image 207, the process is determined to shift to the power saving mode again, and after the image 208, the electronic camera 100 continues until the specific subject is detected again in the non-power saving mode. Operates in power saving mode.
By the above method, it is possible to control the transition to the high-performance non-power-saving mode while ensuring the operating time by the power-saving control.

FIG. 3 is a diagram illustrating another example of the camera control method of the present embodiment.
The basic configuration is the same as in FIG. The images 303 to 310 are images developed by capturing the light obtained from the lens by an image sensor in the camera, similar to the images 203 to 208 described in FIG. The images 303 to 310 also represent a state in which these images are arranged in chronological order, and are sequentially displayed on the electronic viewfinder and the liquid crystal monitor on the back of the camera at an appropriate frame rate.
The detection target definition table 301 and the detection target rank definition table 302 are stored in the electronic camera 100. What is different from FIG. 2 is that the rank of each subject can be set in the detection target definition table 301, and the detection target rank definition table 302 is provided. The detection target rank definition table 302 is a table in which the rank of the subject can be defined according to the state such as the battery capacity of the electronic camera 100. These are set in advance by the user who wants to keep a record with high quality, and the camera switches each mode based on these settings according to the situation to reduce the burden on the user. Further, the threshold value that is the boundary between "more" and "less" in the detection target rank definition table 302 can also be set in advance by the user.
Here, when the recordable capacity in the detection target rank definition table 302 is low, or when the face of the user's family is included among the subjects defined in the detection target definition table 301, the power saving mode to the non-power saving mode It is set to migrate to. On the other hand, even when the recordable capacity is low, if the face of a person other than the user's family is detected, the setting does not shift to the non-power saving mode.

Specific control methods will be described in the order of images 303 to 310.
Here, the description will be made on the premise that the battery level of the electronic camera 100 is low.
First, the electronic camera 100 is activated in the power saving mode and acquires the image 303. Next, the face of a person is detected in the subject in the image 304. When a subject is detected here, the CPU 101 refers to the detection target definition table 301 and the detection target rank definition table 302, and confirms whether the detected subject includes a rank or higher set in advance by the user. The rank of the subject is set according to the recordable capacity of the camera. Here, the recordable capacity is comprehensively calculated from the remaining recordable time calculated from the remaining battery level, the number of recordable sheets based on the free capacity of the recording medium, and the like. In the case of FIG. 3, since the remaining battery level of the camera is low, the recordable capacity is small, and the power saving release condition is "rank 5 or higher". Therefore, the power saving mode is canceled only when the face of the family is detected in the power saving mode among the faces of the person. As for the image 304, since the face of the person exists but the face of the family does not exist, the power saving mode is not canceled.
Next, the subject is detected again in the image 305. Subject 311 is the face of a pre-registered user's family. In this case, in order to satisfy the above-mentioned power saving cancellation condition "rank is 5 or more", the mode is switched to the non-power saving mode. After that, since the subject 311 continues to be detected during the period from the images 306 to 307, it operates in the non-power saving mode. As a result, the camera keeps capturing the subject at a high frame rate, so that the user can aim without missing the shutter timing. Next, when the subject 311 is not detected in the image 308 during the non-power saving mode, the process is determined to shift to the power saving mode again, and after the image 309, the operation is performed in the power saving mode until the subject is detected again.
By the above method, it is possible to control the transition to the high-performance non-power-saving mode according to the rank of the subject while ensuring the operating time by the power-saving control.

FIG. 4 is a diagram showing an example of a table stored in the electronic camera 100 of the present embodiment. These tables are set in advance by the user's operation and stored in the electronic camera 100.
FIG. 4A is an example of the detection object definition tables 202 and 301 described with reference to FIGS. 2 and 3. These tables store the identification of the subject to be detected and the rank of importance according to the subject to be detected. The higher the rank, the higher the quality of the subject that the user wants to record. Note that the importance rank may be omitted as in the detection object definition table 202 of FIG. In FIG. 4A, a person's face and an animal are registered in rank 3, and a family's face is registered in rank 5. By registering the subject and rank in advance, the user can record important subjects with high image quality while using the camera in the power saving mode for a long time.

4 (b) and 4 (c) are examples of a table for managing a subject. These tables are used for registering and managing learning data for detecting a subject by using Deep Learning or the like in the electronic camera 100. FIG. 4B is an example of the subject ID management table, and the subject ID to be machine learning is recorded. FIG. 4B shows a state in which the user's family members “Hanako” and “Taro” are registered in the subject ID. As a result, it is possible to convert what is registered in the meta expression that the subject type is "family face" in FIG. 4A into a specific subject ID that can be processed by a computer.

FIG. 4C is an example of a machine learning data management table. This table records supervised learning data used for machine learning. The electronic camera 100 performs machine learning by registering a plurality of image files in which a face corresponding to the subject ID is shown as teacher learning data from a photograph taken in advance. In FIG. 4C, a plurality of learned files associated with the subject IDs of Hanako and Taro are managed. Since machine learning requires high processor processing power, machine learning does not necessarily have to be performed by the electronic camera 100. By separately performing machine learning on a PC or cloud with high processing power and mounting only the inference model created as a result on the electronic camera 100, it is possible to perform highly accurate subject detection even with a camera with insufficient computing power. Will be. In such a configuration, the machine learning data management table of FIG. 4C does not have to be mounted on the electronic camera 100.

FIG. 4D is an example of the detection target rank definition table 302 described with reference to FIG. Here, among the subjects recorded in the detection object definition table 301, those of high importance to the user are ranked and recorded according to the remaining recordable capacity of the electronic camera 100. The conditions registered here are used as transition conditions to the power saving mode and non-power saving mode of the camera. In FIG. 4D, when the recordable capacity is larger than the threshold value, the detection of a subject of rank 3 or higher is a condition for shifting to the non-power saving mode. Further, when the recordable capacity is equal to or less than the threshold value, the detection of a subject of rank 5 or higher is a condition for shifting to the non-power saving mode. As described above, the recordable capacity is determined comprehensively from the remaining operating time calculated from the remaining battery level of the camera, the free capacity of the recording medium, and the like. Although FIG. 4D shows a two-step switching condition as an example, three or more steps may be set. Further, the remaining battery level may be determined by the user setting the time of the shooting event in advance. Further, the user may set the spare number of the battery and the spare number of the memory card in advance to increase the remaining operating time used for the determination and the free capacity of the recording medium.

Next, an example of a basic processing procedure related to the operation of the electronic camera 100 of the present embodiment will be described with reference to the flowchart of FIG.
In step S501, the CPU 101 performs initialization processing such as initialization of various parameters.
In step S502, the CPU 101 waits for some event detected by the input unit 102 to occur. The CPU 101 detects the occurrence of an event not only by a physical button but also by a user's contact determination such as a touch panel.

In step S503, the CPU 101 determines the type of event from the detection result from the input unit 102.
In step S504, the CPU 101 performs various processes based on the event determined in step S503. Here, various processes for realizing these are included, including the power saving mode transition process and the non-power saving mode transition process described later.

Next, an example of the registration processing procedure for the subject to be detected in the present embodiment will be described with reference to the flowchart of FIG. Since the processing described in this flowchart includes machine learning, high processor processing power is required. Therefore, this flowchart may be executed as a part of step S504, or may be separately executed on a PC or cloud having high processing power, and only the inference model produced as a result may be mounted on the electronic camera 100. This makes it possible to perform highly accurate subject detection even with a camera that does not have sufficient computing power.
In step S601, the CPU 101 selects a subject ID to be learned from the subject ID management table. Select the subject to which the subject image registered in this procedure is linked as supervised learning data. If the desired subject has not been registered, a new subject may be newly registered at this timing.
In step S602, the CPU 101 selects an image corresponding to the subject ID as supervised learning data. The image to be registered as supervised learning data is selected from those taken by the user in advance. The CPU 101 stores the selected supervised learning data in the machine learning data management table shown in FIG. 4C described above.

In step S603, the CPU 101 constructs a desired inference model by machine learning the image of the subject selected in step S602 as supervised learning data by artificial intelligence (AI).
In step S604, the CPU 101 determines whether or not the machine learning of the subject has been sufficiently performed. If the CPU 101 determines that the machine learning of the subject is not sufficiently performed, it is necessary to add the supervised learning data and further perform the machine learning, so the process proceeds to step S602 again. On the other hand, when the CPU 101 determines that the machine learning of the subject has been sufficiently performed, the process ends. Whether or not the learning is sufficient is determined, for example, by the user designating the evaluation image in the inference model and checking whether or not the desired result can be obtained.

The process of FIG. 6 shows a procedure for performing machine learning for one subject ID, but when performing machine learning for other subject IDs, the number of subjects to be machine-learned. Only the process of FIG. 6 may be repeated.

Next, with reference to the flowchart of FIG. 7, a series of processing procedures relating to the transition control to the power saving mode and the non-power saving mode accompanied by the detection determination of the subject according to the reference shown in FIG. 2 will be described. This flowchart is repeatedly executed as a part of step S504 at a frame rate defined by, for example, the electronic camera 100.
In step S701, the CPU 101 captures the light obtained from the lens by the image sensor of the image pickup unit 109 and develops it into image data.
In step S702, the CPU 101 analyzes the image data acquired in step S701 and detects a person's face, an object, or the like as a subject. It is also conceivable to detect a plurality of subjects in one detection process. The following steps S703 and S704 are performed for each of the detected subjects.
In step S703, the CPU 101 selects one of the subjects detected in step S702, and compares the selected subject with the subject registered in the detection object definition table 202.

In step S704, as a result of the comparison in step S703, the CPU 101 determines whether or not the subject to be processed is the subject registered in the detection object definition table 202. If the CPU 101 determines that the subject is a registered subject, the process proceeds to step S707. On the other hand, if the CPU 101 determines that the subject is not a registered subject, the process proceeds to step S705.
In step S705, the CPU 101 determines whether or not there is an unevaluated subject among the subjects detected in step S702. The unevaluated subject is a subject that has not been processed in step S704. If the CPU 101 determines that an unevaluated subject exists, the process proceeds to step S704 again. On the other hand, if the CPU 101 determines that there is no unrated subject, the process proceeds to step S706.
In step S706, the CPU 101 sets the operation mode of the electronic camera 100 to the power saving mode, and ends the process.
In step S707, the CPU 101 sets the operation mode of the electronic camera 100 to the non-power saving mode, and ends the process.

FIG. 8 describes a series of processing procedures relating to mode change control to a power saving mode and a non-power saving mode, which are accompanied by a detection determination of a subject according to a calculation result of a recordable capacity according to a reference shown in FIG. 3 in the present embodiment. It is a flowchart to be done. This flowchart is executed at a frame rate or the like specified by the camera as a part of step S504 in FIG.
In step S801, the CPU 101 comprehensively calculates the current recordable capacity from the remaining recordable time calculated from the remaining battery level of the electronic camera 100, the number of recordable sheets based on the free capacity of the recording medium, and the like, and puts it on the RAM 107. Hold.
In step S802, the CPU 101 performs the same processing as in step S701.
In step S803, the CPU 101 performs the same processing as in step S702.

In step S804, the CPU 101 performs the same processing as in step S703.
In step S805, the CPU 101 performs the same processing as in step S704. If the CPU 101 determines that the subject is a subject registered in the detection object definition table 301, the process proceeds to step S806. On the other hand, if the CPU 101 determines that the subject is not the subject registered in the detection object definition table 301, the process proceeds to step S807.
In step S806, the CPU 101 refers to the detection target rank definition table 302, and determines whether or not the subject to be processed is a subject corresponding to the rank of importance according to the recordable capacity calculated in step S801. At this time, when it is necessary to recognize the face of a specific person such as the face of a family as in the example shown in FIG. 3, the CPU 101 also recognizes the face of the person. Face recognition of a person can be realized by machine learning for each subject ID by the procedure shown in FIG.
If the CPU 101 determines that the subject corresponds to the rank of importance, the process proceeds to step S809. On the other hand, if the CPU 101 determines that the subject does not correspond to the rank of importance, the process proceeds to step S807. In the example of FIG. 3, when the recordable capacity is small and the face of the user's family is included among the subjects defined in the detection object definition table 301, the power saving mode is changed to the non-power saving mode. On the other hand, even when the recordable capacity is small, if only the face of a person other than the user's family is detected, the mode does not shift to the non-power saving mode.
In step S807, the CPU 101 performs the same processing as in step S705. If the CPU 101 determines that an unevaluated subject exists, the process proceeds to step S804 again. On the other hand, if the CPU 101 determines that there is no unevaluated subject, the process proceeds to step S808.
In step S808, the CPU 101 performs the same processing as in step S706.
In step S809, the CPU 101 performs the same processing as in step S707.

As described above, according to the configuration of the present embodiment, it is possible to reduce the time and effort required for user setting to control the transition to the high-performance non-power-saving mode while ensuring the operating time by the power-saving control. Although the electronic camera has been described as an example in the present embodiment, the present invention is not limited to the electronic camera and may be another electronic device.

(Other embodiments)
The present invention supplies a program that realizes one or more functions of the above-described embodiment to a system or device via a network or storage medium, and one or more processors in the computer of the system or device reads and executes the program. It can also be realized by the processing to be performed. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

101 CPU

Claims (7)

An electronic device that operates in a non-power saving mode or a power saving mode in which power consumption is suppressed as compared with the non-power saving mode.
A detection means for detecting a subject from an image acquired by the electronic device, and
A registration method for registering a specific subject as a detection target,
A determination means for determining whether or not the subject detected by the detection means is a subject registered by the registration means, and
When the electronic device is in the power saving mode and the determination means determines that the subject detected by the detection means is the subject registered by the registration means, the power saving mode is not selected. The first transition method to shift to the power saving mode,
An electronic device characterized by having. When the electronic device is in the non-power saving mode and the determination means determines that the subject detected by the detection means is not the subject registered by the registration means, the non-power saving mode is used. The electronic device according to claim 1, further comprising a second transition means for transitioning to the power saving mode. The registration means sets a rank for the registered subject based on the remaining recordable amount.
The electronic device is in the power saving mode, the subject detected by the detection means by the determination means is the subject registered by the registration means, and is based on the current remaining recordable amount. The electronic device according to claim 1 or 2, wherein when the subject is a subject of rank, the first transition means shifts from the power saving mode to the non-power saving mode. The registration means sets a rank for the registered subject based on the remaining recordable amount.
When the electronic device is in the non-power saving mode and the subject detected by the detection means is not a subject of rank based on the current remaining recordable amount, the second transition means is the non-transition means. The electronic device according to claim 2, wherein the mode shifts from the power saving mode to the power saving mode. The electronic device according to claim 3 or 4, wherein the remaining recordable amount is at least an amount based on the free capacity of the recording medium or the remaining battery level. It is a control method of an electronic device that operates in a non-power saving mode or a power saving mode in which power consumption is suppressed as compared with the non-power saving mode.
A detection process for detecting a subject from an image acquired by the electronic device,
The registration process for registering a specific subject as a detection target, and
A determination step of determining whether or not the subject detected by the detection step is a subject registered by the registration step, and a determination step.
When the electronic device is in the power saving mode and the determination step determines that the subject detected by the detection step is the subject registered by the registration step, the power saving mode is not saved. The transition process to shift to the power mode and
A method of controlling an electronic device, characterized in that it has. A program for controlling an electronic device that operates in a non-power saving mode or a power saving mode in which power consumption is suppressed as compared with the non-power saving mode.
A detection process for detecting a subject from an image acquired by the electronic device,
The registration process for registering a specific subject as a detection target, and
A determination step of determining whether or not the subject detected by the detection step is a subject registered by the registration step, and a determination step.
When the electronic device is in the power saving mode and the determination step determines that the subject detected by the detection step is the subject registered by the registration step, the power saving mode is not selected. The transition process to shift to the power saving mode and
A program that lets your computer run.

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