JP3559575B2 - Information recording / reproducing device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an information recording / reproducing device such as a video recorder capable of connecting camera means to a main body.
[0002]
[Prior art]
FIG. 5 is a schematic diagram in which a camera is connected to a conventional information recording / reproducing apparatus main body. 1 is a main body of the information recording / reproducing apparatus, 2 is a display section of the main body of the information recording / reproducing apparatus, 3 is an operation button, and 4 is used for moving a cursor and pointing a part of the display section when a cursor is displayed on the display section. The pointing device 5 is a connection adapter for connecting the camera unit to the information recording / reproducing apparatus main body.
[0003]
Reference numeral 6 denotes a cable for connecting the information recording / reproducing apparatus main body and the camera section, and a power supply line for supplying power from the information recording / reproducing apparatus main body to the camera section, a communication line between the information recording / reproducing apparatus main body and the camera section, and the like. Is in.
[0004]
Reference numeral 7 denotes an entire camera unit, 8 denotes a lens for imaging, 9 denotes an illumination member such as a strobe for illuminating a subject, and 10 denotes a trigger switch for photographing, which corresponds to a shutter button in a silver halide camera.
[0005]
The information recording / reproducing apparatus main body 1 has a built-in battery, and power is supplied to the information recording / reproducing apparatus main body 1 and the camera unit 7.
[0006]
[Problems to be solved by the invention]
In the above-described conventional apparatus, when the information recording / reproducing apparatus main body 1 is driven by a battery, if the camera section 7 performs photographing, the power supply capability is insufficient, and the power supply voltage decreases at the moment of photographing. In some cases, the operation of the apparatus body 1 or the camera unit 7 stops.
[0007]
SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to restrict power supply to the apparatus main body when performing a shooting operation, and to reliably supply power to a camera unit.
[0008]
[Means for Solving the Problems]
The present invention has solved the above-mentioned problem by the following technical configuration.
(1) An information recording / reproducing device which is connected to a camera via a connector, communicates with the camera connected via the connector, and supplies power to the connected camera, wherein the information recording / reproducing device is connected to the information recording / reproducing device. has a power source for supplying power to the camera, the control means for controlling the power of the capacitor to be supplied to the information recording and reproducing apparatus, the control means, a predetermined amount or more power is consumed by the connected camera An information recording / reproducing apparatus , wherein the power supplied to the information recording / reproducing apparatus is limited .
(2) In an information recording / reproducing device connected to a camera via a connector, communicating with the connected camera and supplying power to the connected camera, supplying power to the camera connected to the information recording / reproducing device. And a control unit for controlling a capacity of electric power supplied to the information recording / reproducing apparatus, wherein the control unit is configured to control the information recording / reproducing when the connected camera is set to a predetermined state. An information recording / reproducing apparatus, wherein power supplied to the apparatus is limited.
(3) In an information recording / reproducing apparatus connected to a camera via a connector, communicating with the connected camera and supplying power to the connected camera, supplying power to the camera connected to the information recording / reproducing apparatus. And a control unit for controlling a capacity of electric power supplied to the information recording / reproducing device, wherein the control unit controls the information recording / reproducing device when the information recording / reproducing device is in a predetermined state. An information recording / reproducing apparatus, wherein power supplied to the apparatus is limited.
(4) The information recording / reproducing apparatus according to the above item (2), wherein the predetermined state is at least one of a shooting standby state and a state in which a strobe needs to be charged.
(5) The predetermined state is at least one of a state in which the remaining amount of the power supply is equal to or less than a predetermined amount and a state in which power is not supplied from an external power supply. Item).
(6) The information recording / reproducing apparatus according to any one of the above (1) to (5), further comprising connection detection means for detecting that the connector is connected to a camera.
(7) In order to limit electric power supplied to the information recording / reproducing device, the control unit stops supplying power to at least a part of the information recording / reproducing device; Any one of the above items (1) to (6), wherein either the operation frequency is restricted or the specific gravity of execution of a part of the task of the information recording / reproducing device is restricted. An information recording / reproducing apparatus as described in the above.
[0009]
[Action]
With the above configuration, when the camera connected to the apparatus main body is set to, for example, a shooting state that consumes a predetermined amount or more of power, the power supply from the power supply battery in the main body to a part of the main body is restricted. As a result, sufficient power can be supplied to the camera, and shooting can be started without any trouble.
[0010]
【Example】
Hereinafter, an information recording / reproducing apparatus according to the present invention will be described with reference to embodiments.
[0011]
FIG. 1 is a block diagram of an information recording / reproducing apparatus and a camera unit according to one embodiment. The basic configuration is the same as that shown in FIG.
[0012]
A left block surrounded by a broken line in the figure shows the inside of the information recording / reproducing apparatus main body corresponding to 1 in FIG. Similarly, the block on the right corresponds to the camera unit 7.
[0013]
100 is a display block, 101 is a memory for display, 102 is a system memory for controlling the information recording / reproducing apparatus main body, 103 is a power supply selection switching unit, and 104 is a microprocessor for controlling the information recording / reproducing apparatus main body. CPU) and 105 are operation switch members such as operation buttons and a pointing device.
[0014]
Reference numeral 106 denotes a battery serving as a power source of the information recording / reproducing apparatus main body and the camera unit; 107, an A / D converter for digitizing a voltage value for measuring the voltage of the battery; A connector 109 for mechanically connecting the information recording / reproducing apparatus main body to the camera unit, and 109 is an electrical interface for communication between the information recording apparatus main body and the camera unit.
[0015]
Reference numeral 200 denotes a connector for mechanically connecting the information recording / reproducing apparatus main body provided on the camera unit side to the camera unit, 201 denotes a standby switch for shooting, 202 denotes a shooting trigger switch, and 203 denotes control of the camera unit. Microprocessor 204, an electrical interface for communication between the information recording / reproducing apparatus main body provided on the camera unit side and the camera unit, 205, a memory for temporarily storing photographed data, 206 Denotes an A / D converter for digitizing the output of the image sensor, 207 denotes an image sensor such as a CCD, 208 denotes an imaging lens, and 209 denotes an illumination unit such as a strobe (EF) for illuminating a subject. . The bold lines from the battery 106 and the power supply selection means 103 are power supply lines.
[0016]
The operation of the embodiment having the above configuration will be described with reference to the flowchart of FIG.
[0017]
In step S1, the system of the main body is initialized. Then, in S2, it is checked whether the system restriction condition is satisfied, for example, whether the strobe needs to be charged here. That is, the brightness of the subject is measured by a photometric unit (not shown), and if the subject is darker than a predetermined amount, the strobe is set to the light emission mode. If the amount of charge is not sufficient, such as by measuring the voltage of the main capacitor of the strobe, the process proceeds to S3 to satisfy the charging condition. If the charge is not insufficient, the process proceeds to S4, performs a normal operation without system limitation, and proceeds to S5.
[0018]
In S3, the system is restricted. For example, the backlight of the display device is turned off. That is, the microprocessor 104 in FIG. 1 selects the power supply selection circuit and stops the supply to the display 100. Then, the flash 209 is charged. After charging to a predetermined amount, a flash unit (not shown) automatically stops charging.
[0019]
In S5, it is checked whether a system end condition, for example, a power OFF switch has been pressed or a timeout of an auto shutdown timer has occurred. If so, the main operation is stopped to stop the entire system. If not, the process returns to S2 and repeats the above operation.
[0020]
The above operation is configured as an OS (OPERATION SYSTEM) of the information recording / reproducing apparatus main body.
[0021]
(Other embodiments)
In the above-described embodiment, for simplicity of explanation, an example in which the system restriction condition is limited to the item of whether or not the strobe needs to be charged has been described. Will be described. However, in actual applications, a system in which items and contents are added or changed is also possible.
[0022]
First, the system restriction conditions will be described in detail. As condition items,
Condition item A Is the camera connected?
[0023]
Condition item B Is the battery level of the main unit less than or equal to a predetermined level
[0024]
Condition item C Is the shooting standby switch ON?
[0025]
Condition item D Is the shooting trigger switch ON?
[0026]
Condition item E Is it necessary to charge the strobe?
[0027]
Condition item F Check that power is not supplied to the main unit from outside.
[0028]
And the like.
[0029]
Here, the connection of the camera unit of the condition item A can be easily determined by using a configuration as shown in FIG. In addition, 104, 108, and 200 shown in FIG. 3 correspond to the same numbers shown in FIG.
[0030]
FIG. 3A shows a state where the camera unit is not connected. PORT-A of the CPU 104 becomes high level.
[0031]
FIG. 3B shows a state where the camera unit is connected. PORT-A of the CPU 104 becomes low level.
[0032]
FIG. 4 is a flowchart showing a part of the operation of the embodiment in which the present invention is implemented under the condition item A. Note that FIG. 4 replaces the system restriction condition determination step of step S2 in FIG. 2, and will be described with reference to FIGS.
[0033]
In step S200, the level of PORT-A is checked. If the level is high, it is determined that no connection has been made, and the process proceeds to S201. If the level is low, it is determined that the connection is established, and the process proceeds to S202.
[0034]
In S201, the storage of the mounted state, which is temporarily stored in the storage unit in the main system, is cleared. Then, in S203, it is checked whether or not the detached state has already been stored in the storage unit in the main system, and if it is, the process proceeds to S4 in FIG. If not, the process proceeds to S205. In S205, the fact that the vehicle is in the detached state is newly stored, and the process proceeds to S3 in FIG.
[0035]
In S202, the storage of the detached state, which is temporarily stored in the storage unit in the main system, is cleared. Then, in S204, it is checked whether or not the mounting state has already been stored in the storage unit in the main body system. If the mounting state has been stored, the process proceeds to S4 in FIG. If not stored, the process proceeds to S206. In S206, the fact that the camera is in the newly mounted state is stored, and the process proceeds to S3 in FIG.
[0036]
As for the condition item B, the information recording / reproducing apparatus main body may measure the battery voltage or the battery internal resistance of the camera unit, or the CPU in the camera unit may measure the measured battery voltage and transmit it to the main body by communication.
[0037]
Since other condition items can be easily realized by a known method, detailed description is omitted.
[0038]
Of the items described above, for example, only the above item A may be set as the condition item. In this case, since the determination is simple, there is also an effect that the control of the system of the information recording / reproducing apparatus main body can be simplified.
[0039]
Alternatively, a plurality of AND conditions such as A & B may be set. In this case, since the power supply is not carelessly limited, there is also an effect that operability is hardly reduced. Further, an OR condition such as A & (B or E) may be added.
[0040]
These may be determined based on the power consumption characteristics of the camera unit and the power supply capability from the information recording / reproducing apparatus main body. That is, it depends on how far the information recording / reproducing apparatus main body can supply the power for operation during the operation of the camera. For example, if the strobe cannot be charged but other operations and photographing can be sufficiently performed, the condition may be only E. If the battery performance cannot be sufficiently increased due to a decrease in the remaining battery level or a low ambient temperature, the condition items may be changed. Thus, the types and combinations of items can be configured to correspond to various cases.
[0041]
Similarly, details of the system restrictions will be described in detail below. System limitations include:
Restriction item a At least a part of the power supply of the information recording / reproducing apparatus is turned off.
[0042]
Restriction item b The operating frequency of at least a part of the information recording / reproducing apparatus main body is restricted.
[0043]
Restriction item c Limits the specific gravity of execution of a part of the task of the information recording / reproducing apparatus main body, for example, stops the background processing. Decrease specific gravity.
[0044]
And the like.
[0045]
The restriction item "a" clearly turns off the power of a function not used at that time among a plurality of functions of the main body, and has an advantage that other functions are not affected.
[0046]
The restriction item b has an advantage in that even if the response to the display or operation of the main body is slightly delayed, the photographing can be performed without deteriorating the performance of the camera.
[0047]
The restriction item c is to reduce the display and other operation performance by reducing the weight of the processing for communication when the main body has a communication function, for example, when there is not much load on the CPU for communication. There is an advantage that the photographing can be performed without using.
[0048]
Then, similarly to the above condition items, for example, only a of the above items may be limited. Alternatively, a restriction on a plurality of ANDs such as a & b may be used. further,
An OR condition such as a & (b or c) may be added. Thus, the types and combinations of items can be variously configured.
[0049]
Furthermore, a level may be set as a condition, and a restriction may be added according to the level, or the content of the restriction may be changed.
[0050]
For example, using the above condition items A, B, C, D and E, condition level 1 A
Condition level 2 A & B
Condition level 3 A & B & C
Condition level 4 A & C
Condition level 5 A & B & D
Condition level 6 A & B & E
And so on. And in the case of level 1 restriction item c
Level 2 or 4 Restricted items a
Level 3 or 5 or 6 Restricted items a and c
What is necessary is just to comprise.
[0051]
These restriction items and condition levels can be appropriately determined based on the power consumption characteristics of the camera unit and the power supply capability from the information recording / reproducing apparatus main body, similarly to the above condition items.
[0052]
As described above, it goes without saying that the types and combinations of the condition items and the restriction items can be variously configured in addition to the above-described embodiment.
[0053]
【The invention's effect】
As described above, according to the present invention, even when shooting is performed by the camera unit when the main body is driven by the battery, sufficient power can be supplied from the main body, and the power supply voltage does not decrease at the moment of shooting, The main body and the camera unit can operate stably.
[Brief description of the drawings]
1 is a block diagram of one embodiment; FIG. 2 is a flowchart illustrating the operation of one embodiment; FIG. 3 is a block diagram of another embodiment; FIG. 4 is a flowchart of another embodiment; FIG. 5 is a schematic view showing a conventional example.
DESCRIPTION OF SYMBOLS 1 Information recording / reproducing apparatus 7 Camera section 100 Display block 101 Memory for display 102 System memory for controlling information recording / reproducing apparatus main body 103 Power supply selection switching means 104 Microprocessor 105 for controlling information recording / reproducing apparatus main body Operation switch members 106 such as buttons and pointing devices 106 Battery 107 serving as a power source for the information recording / reproducing apparatus main body and camera unit A / D converter 108 for digitizing a voltage value to measure the voltage of the battery 108 Provided, a connector 109 for mechanically connecting the information recording / reproducing device main body and the camera unit; an electrical interface 200 for communication between the information recording / reproducing device main unit and the camera unit; provided on the camera unit side; To mechanically connect the information recording / reproducing device body and the camera unit Connector 201 standby switch 202 for photographing photographing trigger switch 203 microprocessor 204 for controlling camera unit Electrical interface for communication between the information recording / reproducing apparatus main body and camera unit provided on camera unit side 205 Memory for temporarily storing photographed data 206 A / D converter 207 for digitizing the output of the image sensor Image sensor 208 such as CCD Image pickup lens 209 Strobe (EF) for illuminating the subject ) And other lighting means

Claims (7)

An information recording / reproducing device which is connected to a camera via a connector and communicates with the camera connected via the connector and supplies power to the connected camera,
A power supply for supplying power to the information recording and reproducing apparatus and connected camera, a control unit for controlling the power of the capacitor to be supplied to the information recording and reproducing apparatus, the control means, the connected camera An information recording / reproducing apparatus , wherein when power equal to or more than a predetermined amount is consumed, power supplied to the information recording / reproducing apparatus is limited. An information recording / reproducing device connected to a camera via a connector, communicating with the connected camera and supplying power to the connected camera,
It includes a power supply for supplying power to the information recording and reproducing apparatus and connected camera, a control unit for controlling the power of the capacitor to be supplied to the information recording and reproducing apparatus, the control means, connected to the camera The information recording / reproducing apparatus is characterized in that, when is set to a predetermined state, power supplied to the information recording / reproducing apparatus is limited. An information recording / reproducing device connected to a camera via a connector, communicating with the connected camera and supplying power to the connected camera,
A power supply for supplying power to a camera connected to the information recording / reproducing device; and a control unit for controlling a capacity of power supplied to the information recording / reproducing device, wherein the control unit includes the information recording / reproducing device. Wherein the power supplied to the information recording / reproducing apparatus is limited when the information recording / reproducing apparatus is in a predetermined state . 3. The information recording / reproducing apparatus according to claim 2, wherein the predetermined state is at least one of a shooting standby state and a state in which a strobe needs to be charged . 4. The device according to claim 3, wherein the predetermined state is at least one of a state in which the remaining amount of the power supply is equal to or less than a predetermined amount and a state in which power is not supplied from an external power supply . 5. Information recording and playback device. 6. The information recording / reproducing apparatus according to claim 1, further comprising connection detecting means for detecting that the connector is connected to a camera . In order to limit the power supplied to the information recording / reproducing device , the control unit stops supplying power to at least a part of the information recording / reproducing device, and adjusts an operating frequency of the information recording / reproducing device. 7. The information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus performs one of limiting and limiting a specific gravity of execution of a part of a task of the information recording / reproducing apparatus.

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