JP2005210842A - Working apparatus and method for controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the flexibility of an operation in a chargeable working apparatus. <P>SOLUTION: When a main switch 21 is turned on (a power switch SW is turned on), a secondary battery 2 is mounted to an electronic still camera body 1, a second AC adapter 4 is mounted to the electronic still camera body 1 and an accessary is not mounted (body only), the camera operation (operation for imaging) is implemented in the electronic still camera body 1, and the secondary battery 2 is charged. If a first AC adapter 3 is used, the secondary battery is not charged. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique for operating with electric power supplied from at least one of a detachable AC adapter and a secondary battery.

  Conventionally, in an electronic still camera and a video camera, since the power consumption of the main body is relatively large, a power supply system using a rechargeable secondary battery is generally configured.

  In this system, there are a case where a charger independent of the device is set for charging the secondary battery, a case where a charging circuit is built in the device, and a case where both are prepared as a system.

  When taking a charging system inside the body, it is not necessary to prepare a dedicated charger for charging, and charging is possible with only a minimum AC adapter. And miniaturization is achieved.

  For example, Patent Document 1 discloses a portable video device drive system in which an external AC adapter can be directly connected to the camera side via an interface box in a video camera system that can be charged inside the main body.

  For example, Patent Document 2 discloses a power supply system for an electronic camera that enables an external device to operate when an external device is connected to the main body and an external power source is attached to the main body.

Patent Document 3 discloses a coupler apparatus in which a solar battery and a secondary battery are connected and the charging current is changed according to the output of the solar battery.
Patent Registration No. 2640180 Patent Registration No. 3143106 JP 2000-270496 A

  In the case of adopting the in-body charging system, whether or not the device operation and the charging operation can be performed simultaneously has been determined at the design stage based on the system power supply circuit and the current capacity of the AC adapter.

  In other words, when pursuing the compactness and low cost of the system, it is desirable to perform the device operation and the charging operation exclusively. In the case of exclusive operation, the current capacity that can be supplied from the AC adapter only needs to cover the larger one of the device operation and the charging operation, and it is not necessary to provide a power supply circuit and a charging circuit independently. For this reason, the compactness and low cost of the system can be obtained.

  On the other hand, if the AC adapter has a sufficient current margin and the power supply circuit and the charging circuit can be operated in parallel, the device operation can be performed in parallel with the charging operation. If this configuration is adopted, charging can be performed while using the device, so that the device can be handled without having to worry about the charging time. However, the compactness and low cost of the system are sacrificed.

  As mentioned above, with a conventional power supply system, when one product is viewed, it can only be used in a combination determined by the manufacturer, so compactness and functionality are prioritized according to user needs. I could n’t.

  An object of this invention is to provide the technique for raising the freedom degree of operation | movement in the operation | movement apparatus which can be charged.

  In order to achieve the object of the present invention, for example, an operating device of the present invention comprises the following arrangement.

That is, an operating device that operates with power supplied from at least one of a detachable AC adapter and a secondary battery,
Detection means for detecting the AC adapter and the state of attachment / detachment of the secondary battery;
When the AC adapter is attached, an amount of power acquisition means for obtaining the amount of power that can be supplied by the AC adapter;
Processing means for performing an operation according to a condition defined by the AC adapter detected by the detection means, the state of attachment / detachment of the secondary battery, and the amount of power that can be supplied by the AC adapter obtained by the power amount acquisition means. It is characterized by including these.

  In order to achieve the object of the present invention, for example, a method for controlling an operating device of the present invention comprises the following arrangement.

That is, a control method for an operating device that operates with power supplied from at least one of a detachable AC adapter and a secondary battery,
A detection step of detecting a state of attachment / detachment of the AC adapter and the secondary battery;
When the AC adapter is attached, an electric energy acquisition step for obtaining the electric energy that can be supplied by the AC adapter;
A processing step for performing an operation according to a condition defined by the AC adapter detected in the detection step, the state of attachment / detachment of the secondary battery, and the amount of power that can be supplied by the AC adapter obtained in the power amount acquisition step. It is characterized by including these.

  With the configuration of the present invention, the degree of freedom of operation in the rechargeable operation device can be increased.

  Hereinafter, the present invention will be described in detail according to official embodiments with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a block diagram showing a basic configuration of an electronic still camera according to the present embodiment.

  In the figure, reference numeral 1 denotes an electronic still camera body, and 2 denotes a secondary battery that can be attached to and detached from the electronic still camera body 1. The secondary battery 2 functions as a device for supplying electric power to the electronic still camera and is charged. This charging process is performed in parallel with other processes. This charging process will be described later in detail.

  3 is a first AC adapter, 4 is a second AC adapter, and 5 is a third AC adapter. Of these three AC adapters, the first AC adapter 3 has the smallest power supply capacity but the smallest size. The third AC adapter 5 has the largest power supply capacity but the largest size. The second AC adapter 4 has an intermediate power supply capacity and an intermediate size. These AC adapters are detachable from the electronic still camera body 1 and are for supplying electric power to the electronic still camera.

  A large liquid crystal panel 6 is an accessory (external device) that can be attached to and detached from the electronic still camera body 1 and can be used for confirmation of a finder image and a captured image, menu setting, and the like.

  The electronic still camera body 1 includes a lens 11, an image sensor 12, an image processing unit 13, a storage unit 14, a power supply circuit 15, and a control circuit 16. Reference numeral 17 denotes a power supply terminal, and 18 denotes an identification terminal. Reference numeral 19 denotes an accessory power output terminal, and reference numeral 20 denotes a signal terminal for exchanging signals with the accessory.

  Each AC adapter includes power output terminals 3a, 4a, and 5a for connecting to the power terminal 17 of the electronic still camera body 1 and identification signal output terminals 3b, 4b, and 5b for connecting to the identification terminal 18. ing.

  That is, for example, when the first AC adapter 3 is connected to the electronic still camera body 1, the power terminal 17 and the power output terminal 3a are connected, and the identification terminal 18 and the identification signal output terminal 3b are connected. As a result, the power supplied from the first AC adapter 3 is supplied to the power supply circuit 15 via the power output terminal 3a and the power supply terminal 17, and an identification code described later held by the first AC adapter 3 is The signal is supplied to the control circuit 16 via the signal output terminal 3 b and the identification terminal 18. The same applies to the second AC adapter 4 and the third AC adapter 5.

  Each AC adapter (first to third AC adapters 3, 4, 5) holds an independent identification code therein. With this identification code, the power that can be supplied by each AC adapter is known to the electronic still camera body 1.

  The identification code contains information indicating each item of the supply voltage, supplyable current, and allowable peak current of the AC adapter. When the identification code is analyzed, the supply voltage, supplyable current, and allowable peak current of the AC adapter are obtained. It is possible to do.

  Although it is possible to make the identification code a simple code indicating only the type of the AC adapter, if the simplified code is used, it is necessary to manage all the contents of the assumed AC adapter on the electronic still camera body 1 side. It is not possible to use a new AC adapter that is not registered in the electronic still camera body 1. As described above, since the degree of freedom of the entire system is reduced when the simplified code is used, in this embodiment, a technique for incorporating the specifications of the AC adapter into the identification code itself is adopted.

  21 is a main switch of the electronic still camera body 1, 22 is a release button, 40 is a shutter speed setting unit, 41 is an aperture value setting unit, and 42 is a shooting mode setting unit. Reference numeral 23 denotes an external display member. The external display member 23 is a reflective liquid crystal panel. Reference numeral 29 denotes a shutter. Reference numeral 30 denotes an electromagnetic drive diaphragm. Reference numeral 31 denotes a lens driving unit that adjusts the focus position of the lens 11. 32 is a quick return mirror, 33 is a focusing plate, 34 is a pentaprism, and 35 is a finder lens. In this embodiment, an optical viewfinder including a quick return mirror 32, a focus plate 33, a pentaprism 34, and a viewfinder lens 35 is provided. Reference numeral 36 denotes a sub mirror, and reference numeral 37 denotes a phase difference AF unit. Reference numeral 38 denotes a photometric sensor.

  In addition, about the structure of each part which comprises the imaging system in an electronic still camera, it is not limited to the said structure.

  2 and 3 are diagrams showing various display examples on the external display member 23. FIG. As shown in the figure, the display content on the external display member 23 includes a shutter speed display 24, an aperture value display 25, a remaining number of shots display 26, a remaining battery level display 27, a charge state display 28, and a shooting mode display 39. It is.

  The charging status display 28 blinks during charging, lights up when charging is completed, displays as indicated by 28b in FIG. 3 when charging is impossible, and is also turned off. When the light is turned off, only the secondary battery is connected, or only the AC adapter is connected (that is, only one of the secondary battery and the AC adapter is connected).

  In the battery remaining amount display 27, the inner bar length changes according to the battery remaining amount of the secondary battery. The display indicated by 27b in FIG. 3 indicates a state in which the remaining battery level is considerably reduced.

  In the shooting mode display 39, any one of P (program), Tv (shutter priority), Av (aperture priority), and M (manual) is displayed, but in FIGS. Shown in state.

  The display on the external display member 23 is not limited to this.

  FIG. 4 is a diagram showing a configuration example of a table describing the operation of the electronic still camera body 1 (operation by control of the control circuit 16) in various states.

  When the main switch 21 is off, charging within the main body is always permitted. As shown in FIG. 4, the electronic still camera according to the present embodiment is characterized in that the main switch 21 is turned on / off, the secondary battery 2 to the electronic still camera body 1, and the AC adapters 3, 4, 5. The purpose is to control the charging operation of the secondary battery 2, the operation of the electronic still camera body 1, and the operation of the accessory in accordance with the attachment / detachment state, the attachment / detachment state of the accessory to the electronic still camera body 1, and the like.

  For example, the main switch 21 is turned on (on in the “power switch”), the secondary battery 2 is attached to the electronic still camera body 1, the second AC adapter 4 is attached to the electronic still camera body 1, and the accessory is attached. If not ("main body only"), the camera operation (operation related to imaging) in the electronic still camera main body 1 is performed, and the secondary battery 2 is also charged. However, when the first AC adapter 3 is used, the charging operation is not performed.

  For example, when the main switch 21 is turned on, the secondary battery 2 is attached to the electronic still camera body 1, the second AC adapter 4 is attached to the electronic still camera body 1, and accessories are attached, the electronic still camera The camera operation (operation relating to imaging) in the main body 1 is performed, the accessory operation is also performed, and the secondary battery 2 is not charged. However, when the third AC adapter 5 is used, the charging operation is performed.

  In this way, the main switch 21 is turned on / off, the secondary battery 2 to / from the electronic still camera body 1, the attached / detached state of the AC adapters 3, 4 and 5, the attached / detached state of the accessories to the electronic still camera body 1, etc. Accordingly, the charging operation of the secondary battery 2, the operation of the electronic still camera body 1, and the operation of the accessory are controlled. The table shown in FIG. 7 is stored as data in the storage unit 14, and the control circuit 16 refers to the table data and determines and executes an operation to be performed in view of the current situation by processing described later.

  FIG. 5 is a flowchart of the charging process of the secondary battery 2 performed by the control circuit 16 controlling each part of the electronic still camera body 1. In addition, the process (charging process) according to the flowchart of the same figure is performed in parallel with the main process mentioned later.

  The secondary battery 2 is charged by the power supplied from the power supply circuit 15 by the control circuit 16 controlling the power supply circuit 15.

  Regardless of whether the main switch 21 is on or off, the secondary battery 2 with the remaining battery level or the AC adapter (one of the first to third AC adapters) connected to the AC power source is the electronic still camera body 1. When the electronic still camera body 1 is attached, the electronic still camera body 1 is activated.

  First, each port, a work area in the storage unit 14 and the like are initialized (step S101). Next, the power supply currently connected to the electronic still camera body 1 is detected, and information indicating the connected power supply is stored in the work area in the storage unit 14 (step S102). Next, an average amount of power consumption and a peak current value according to the operation state of the electronic still camera, which are notified by main processing described later, are acquired and stored in the work area in the storage unit 14 (step S103). The average amount of electric power acquired is the average amount of electric power used in the whole (electronic still camera) including accessories mounted on the electronic still camera body 1.

  When the main switch 21 is off, the average amount of power acquired in step S103 is the minimum amount of power for backup.

  Next, if it is confirmed in step S102 that only one of the AC adapter (any one of the first to third AC adapters) or the secondary battery 2 is attached to the electronic still camera body 1, The charge display on the external display member 23 is turned off, and the process returns to step S102.

  On the other hand, if it is confirmed in step S102 that the AC adapter (any one of the first to third AC adapters) and the secondary battery 2 are attached to the electronic still camera body 1, the process proceeds to step S105. The remaining battery level of the secondary battery 2 is confirmed, and if the remaining battery level is equal to or lower than the predetermined amount, that is, if charging is necessary, the process proceeds to step S106, and charging is not required (the remaining battery level is equal to or higher than the predetermined amount). If there is, a full charge display is performed on the external display member 23, and the process returns to step S102.

  If the secondary battery 2 needs to be charged, first, “the amount of power that can be supplied by the AC adapter” included in the identification code obtained from the AC adapter is obtained by analyzing the identification code. Then, the difference between the acquired “amount of power that can be supplied by the AC adapter” and the average amount stored in the work area in the storage unit 14 in step S103, that is, the “amount of power that can be supplied by the AC adapter” is calculated from the electronic still camera. The result of subtracting the average amount of power consumption according to the operating state is obtained as the amount of power that can be used for charging (step S106).

  Then, it is determined whether the amount of power that can be used for charging is equal to or greater than a predetermined amount (minimum charging power amount). If the amount of power that can be used for charging is equal to or less than a predetermined amount (minimum charging power amount), An inability to charge is displayed on the external display member 23, and the process returns to step S102.

  On the other hand, if the amount of power that can be used for charging is equal to or greater than a predetermined amount (minimum charging power amount), the process proceeds to step S108, and the charging mode is determined (step S108). In the present embodiment, the charging mode includes a quick charging mode and a power saving charging mode, and in step S108, one of them is determined. The quick charge mode consumes a large amount of power but has a short charge time. The power saving charging mode consumes less power but takes longer to charge.

  In this embodiment, in step S108, if the amount of power that can be used for charging is equal to or greater than a predetermined amount (appropriate amount of power that is equal to or greater than the minimum charge power amount), the amount of power that can be used is large. The charging mode is determined as the charging mode. Conversely, if the amount of power that can be used for charging is less than or equal to a predetermined amount (appropriate amount of power that is equal to or greater than the minimum amount of charging power), the amount of power that can be used is small, so the power saving charging mode is set to the charging mode Determine as.

  In addition, the kind and number of charging modes are not limited to this, and the method for determining the charging mode is not limited to this.

  Next, when it is set to stop the charging of the secondary battery 2 when the peak current is generated on the electronic still camera side, the peak current value stored in the work area in the storage unit 14 in step S103. The peak charge stop mode is set by using the amount of power that can be used for charging obtained in step S106 and the “amount of power that can be supplied by the AC adapter” included in the identification code obtained from the AC adapter in step S106. (Step S109). The peak charge stop mode set may be omitted as appropriate.

  Here, the setting of the peak charge stop mode will be specifically described. First, peak power used on the electronic still camera side is calculated from the peak current value and voltage according to the following equation.

Peak current value x voltage = peak power at this time
If the power at peak time is greater than the amount of power that can be supplied by the AC adapter, the power supply is insufficient during peak operation on the electronic still camera side, and a voltage drop or the like is expected, so the peak charge stop mode is set.

  Then, a display during charging is performed on the external display member 23 (step S110). In the period when the peak charge stop mode is set and the peak current is expected to occur (when the peak current prediction period flag described later is set), the secondary battery 2 is charged. If not, the process returns to step S102, and the subsequent processes are repeated.

  On the other hand, when the peak charge stop mode is set and the peak current is not expected to occur (when the peak current expected period flag described later is reset), or during the peak charge stop mode Is not set, the process proceeds to step S112, and the secondary battery 2 is charged.

  By the above process, the secondary battery 2 can be charged by a charging method corresponding to the amount of power available for charging. Therefore, from the above description, if the electronic still camera body 1 is equipped with an AC adapter that can supply a larger amount of power, the amount of power that can be used for charging can be increased, and a smaller amount of power can be reduced. If an AC adapter that can be supplied is attached to the electronic still camera body 1, the amount of power that can be used for charging is smaller.

  Next, the main process performed in parallel with the charging process will be described below with reference to FIGS. This main process is also executed by controlling each part of the electronic still camera body 1 by the control circuit 16.

  In the main process, the power consumption of the electronic still camera body 1 as a whole is calculated, and the occurrence of a rush current (for example, a motor rush current) generated in accordance with the operation of the electronic still camera body 1 is predicted and generated. The peak current prediction period flag is set and reset for a certain period. By this set / reset, the processing in step S111 is performed.

  When the main switch 21 is turned on, the electronic still camera body 1 is activated. When activated, the control circuit 16 confirms the device mounted on the electronic still camera body 1 (step S201). For example, it is confirmed whether an accessory, an AC adapter, or the secondary battery 2 is attached. Since the technology for confirming the device attached to the device is a well-known technology, description thereof is omitted here, but information for identifying the device confirmed to be attached is a work area in the storage unit 14. Remember inside.

  Next, information indicating that the power used by the electronic still camera is standby power is stored in the work area in the storage unit 14 (step S202). This information is information for acquiring the amount of power consumed by the electronic still camera by reading and analyzing in step S103.

  Next, power is turned on to each part constituting the electronic still camera body 1 to initialize the whole (step S203). Next, the electromagnetically driven diaphragm 30 of the lens 11 is driven fully open (step S204). Next, the shooting mode is set to the set value stored in the backup memory (in the storage unit 14) (step S205). When there is no value in the backup memory, it is set to the initial value.

  Then, the free space in the storage unit 14 is confirmed, and the remaining number of shootable images is calculated (step S206). Then, the shooting mode, the number of remaining shots, and the aperture shutter speed corresponding to the shooting mode are displayed on the external display member 23 (step S207). If the shooting mode is a program, the aperture value and shutter speed are not displayed. If shutter priority is given, the shutter speed is displayed. If the aperture priority is given, the aperture value is displayed. For manual operation, the shutter speed and aperture value are displayed.

  When the control circuit 16 detects that either the main switch 21 or the external operation member 22 has been operated, the processing from step S208 is performed.

  More specifically, when the external operation member 22 is operated, the process proceeds to step S213 via step S209. On the other hand, when the main switch 21 is operated (turned off), the process proceeds to step S210, and the end process of each floor constituting the electronic still camera body 1 is performed (step S210). In the work area, information indicating that the power used in the electronic still camera body 1 is sleep power is stored (step S211). This information is information for acquiring the amount of power consumed by the electronic still camera body 1 by reading and analyzing in step S103. The sleep power is used for backup to back up setting information and the like. Then, power-off processing is performed, and the operation of the electronic still camera body 1 is terminated (step S212).

  On the other hand, if the external display member 23 is operated in step S208, the process proceeds to step S213 via step S209 to detect what operation is input (step S213). Since it is a well-known technique to detect the type of the input operation, a description thereof will be omitted.

  If the shutter speed setting unit 40 is operated on the external display member 23, the process proceeds from step S214 to step S218, the shooting mode is determined, and if the shooting mode is a shutter speed priority or manual, the process proceeds to step S219. The shutter speed is updated based on the instructed input (step S219). On the other hand, if the shooting mode is any other mode, the shutter speed cannot be changed independently, and the process proceeds to step S207.

  If the aperture value setting unit 41 is operated, the process proceeds from step S215 to step S220 to determine the shooting mode. If the shooting mode is aperture priority or manual, the process proceeds to step S21. Is updated based on the instructed input (step S221). On the other hand, when the shooting mode is other than that, the aperture value cannot be changed independently, and the process proceeds to step S207.

  If the shooting mode setting unit 42 is operated, the process proceeds from step S216 to step S217, the shooting mode is updated based on the instructed input, and the process proceeds to step S207.

  If the release button 22 is operated, the process proceeds from step S216 to step S222, a signal is extracted from the phase difference AF unit 37, and the defocus amount is calculated (step S222).

  Then, the defocus amount calculated in step S222 is determined. If the defocus amount is equal to or smaller than the allowable defocus amount, the process proceeds to step S228. If the defocus amount is equal to or larger than the allowable defocus amount, the process proceeds to step S224.

  In step S224, the focus adjustment amount of the lens 11 is obtained by a predetermined calculation from the defocus amount, and in step S225, a peak current expected period flag is set. The setting / resetting of the flag is referred to in step S111. Accordingly, in step S111, it can be determined whether or not it is a period in which a peak current is expected to occur.

  Next, the lens driving unit 31 is controlled based on the focus adjustment amount obtained in step S224 to drive the lens 11 (step S226). After the driving is completed, the peak current expected period flag is reset (step S227).

  In step S228, the shooting mode is determined. If the shooting mode is manual, the process proceeds to step S231. On the other hand, if it is not manual, the process proceeds to step S229, a photometric value is obtained from the signal obtained from the photometric sensor 38 (step S229), and the shutter speed and aperture are set so that appropriate exposure is obtained according to the shooting mode. A value is determined (step S230), and a peak current expected period flag is set (step S231).

  Then, the quick return mirror 32 and the sub mirror 36 are retracted (step S232), the electromagnetic drive diaphragm 30 is narrowed down to the previously determined diaphragm value (step S233), and the charge of the image sensor 12 is reset (step S234).

  Then, the shutter 29 is caused to travel at the previously determined shutter speed, the image sensor 12 is exposed (step S235), the electromagnetically driven aperture 30 is returned to the open position (step S236), and the quick return mirror 32 and the sub mirror 36 are in the viewfinder observation state. (Step S237), the peak current expected period flag is reset (step S238).

  Then, an image signal is read from the image pickup device 12, predetermined image processing is performed by the image processing unit 13, image data is generated (step S239), and the generated image data is stored in a predetermined area in the storage unit 14 (step S239). S240).

  Next, it is determined whether or not the large liquid crystal panel 6 is mounted (step S241). If the large liquid crystal panel 6 is mounted, the process proceeds to step S242 and an image taken on the large liquid crystal panel 6 is displayed for a predetermined time. .

  As shown in the above description, according to this embodiment, the rush current is taken into account together with the power consumption of the entire system, and the operation of the entire system and the charging of the secondary battery are performed by effectively utilizing the capacity of the connected AC adapter. The operation is controlled.

  In addition, according to the present embodiment, it becomes possible to convey the performance of the AC adapter including the allowable peak current as well as the power that can be supplied by the AC adapter to the power system side in detail using an independent signal terminal, enabling efficient operation. Yes.

[Second Embodiment]
In identifying the AC adapter attached to the electronic still camera body, the identification code obtained from the AC adapter is used in the first embodiment. In the present embodiment, the identification is performed by the shape of the connector of the AC adapter (for connecting to the electronic still camera body).

  FIG. 8 is a diagram showing a connector shape for detecting the type of the AC adapter based on the shape of the connector that couples the AC adapter and the electronic still camera body.

  8A is a small capacity AC adapter (corresponding to the first AC adapter in the first embodiment), and FIG. 8B is a medium capacity AC adapter (corresponding to the second AC adapter in the first embodiment). FIG. 8C shows the respective connector shapes of the large-capacity AC adapter (corresponding to the third AC adapter in the first embodiment).

  As shown in the figure, each AC adapter has a different notch shape, and the AC adapter connected to the electronic still camera body is identified by detecting the notch shape on the electronic still camera body side. be able to.

  In that case, naturally, the specifications of the AC adapter corresponding to the notch shape are held as data on the electronic still camera body side (strictly in the storage unit 14). That is, for each AC adapter, information related to the AC adapter (for example, the identification code) and information indicating the notch shape are stored in the storage unit 14 in association with each other.

  In this way, the AC adapter corresponding to the detected cutout shape can be identified by referring to the association, and the identification code of the identified AC adapter can be acquired on the electronic still camera body side. .

  In addition, as described above, even when the AC adapter mounted on the electronic still camera body is identified by the cutout shape of the AC adapter, the processing performed by the electronic still camera is not limited to the mounted AC. Only the method for identifying the adapter is different, and the rest is the same as in the first embodiment.

  As described above, according to the present embodiment, it is not necessary to provide an independent circuit on the AC adapter side in order for the electronic still camera to identify the AC adapter attached to the electronic still camera body, and the AC adapter side Can be reduced in cost and size.

[Third Embodiment]
As a method for identifying the AC adapter mounted on the electronic still camera main body, it may be determined by the voltage supplied from the AC adapter.

  In that case, the power supply circuit 15 is provided with a voltage detection circuit, and for each AC adapter, information on the AC adapter (for example, the identification code) and information indicating the supply voltage of the AC adapter are associated and held in the storage unit 14. Thus, by referring to this association, the identification code of the AC adapter corresponding to the voltage detected by the voltage detection circuit can be acquired, and the AC adapter mounted on the electronic still camera body can be identified. .

  Even when the AC adapter attached to the electronic still camera body is identified by the voltage supplied from the AC adapter, the attached AC adapter is identified for processing performed by the electronic still camera. The only difference is in the method, and the rest is the same as in the first embodiment.

  As described above, according to the present embodiment, it is possible to simplify the coupling form between the AC adapter and the electronic still camera body.

  The method for identifying the AC adapter attached to the electronic still camera body is not limited to the above embodiment, and any method may be used.

It is a block diagram which shows the basic composition of the electronic still camera concerning the 1st Embodiment of this invention. It is a figure which shows the various display examples in the external display member. It is a figure which shows the various display examples in the external display member. It is a figure which shows the structural example of the table which described operation | movement (operation by control of the control circuit 16) of the electronic still camera main body 1 in various states. 4 is a flowchart of a charging process for the secondary battery 2 performed by the control circuit 16 controlling each part of the electronic still camera body 1. It is a flowchart of the main process performed in parallel with the charging process. It is a flowchart of the main process performed in parallel with the charging process. It is a figure which shows the connector shape for performing the classification detection of an AC adapter with the shape of the connector which couple | bonds an AC adapter and an electronic still camera main body.

Claims (5)

An operating device that operates with power supplied from at least one of a detachable AC adapter and a secondary battery,
Detection means for detecting the AC adapter and the state of attachment / detachment of the secondary battery;
When the AC adapter is attached, an amount of power acquisition means for obtaining the amount of power that can be supplied by the AC adapter;
Processing means for performing an operation according to a condition defined by the AC adapter detected by the detection means, the state of attachment / detachment of the secondary battery, and the amount of power that can be supplied by the AC adapter obtained by the power amount acquisition means. An operating device comprising:   2. The operation according to claim 1, wherein the processing unit further performs an operation according to on / off of supply of electric power supplied from at least one of the AC adapter and the secondary battery to the operation device. The operating device described. When the processing means is mounted on the operating device together with the AC adapter and the secondary battery,
Battery remaining amount obtaining means for obtaining a battery remaining amount of the secondary battery;
Average amount obtaining means for obtaining an average amount of electric power used by the operating device;
When the remaining battery level is equal to or less than a predetermined value, charging is performed with the first power amount based on the difference between the average amount obtained by the average amount acquisition unit and the amount of power obtained by the power amount acquisition unit. Determining means for determining any one of a first mode and a second mode for charging with a second power amount smaller than the first power amount;
3. The charging device according to claim 1, further comprising: a charging unit configured to perform charging processing of the secondary battery in parallel with other processing to be performed by the operating device according to the mode determined by the determining unit. The operating device described. The AC adapter holds information indicating the amount of power that can be supplied, and the power amount acquisition means acquires the information from the AC adapter and analyzes it to determine the amount of power that can be supplied by the AC adapter. The operating device according to claim 1, wherein the operating device is obtained. A control method for an operating device that operates with power supplied from at least one of a detachable AC adapter and a secondary battery,
A detection step of detecting a state of attachment / detachment of the AC adapter and the secondary battery;
When the AC adapter is attached, an electric energy acquisition step for obtaining the electric energy that can be supplied by the AC adapter;
A processing step for performing an operation according to a condition defined by the AC adapter detected in the detection step, the state of attachment / detachment of the secondary battery, and the amount of power that can be supplied by the AC adapter obtained in the power amount acquisition step. And a control method for an operating device.

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