JPH07143375A - Video camera - Google Patents

Abstract

PURPOSE:To prevent camera adjustment information stored in an IC card or a video camera from being rewritten erroneously. CONSTITUTION:This video camera is provided with an attaching/detaching device 7 and a CPU 21 for executing read and write of information from an IC card 8 having each area for storing camera adjustment information and ID information, a display device (view finder) 5 for displaying each menu item and the ID information corresponding to each operation mode of read and write of the information from the IC card 8, and switches 10-13 for setting or changing the ID information displayed on the display device 5, and at the time of reading the information from the IC card 8, the ID information is read from the IC card 8, displayed on the display device 5 and confirmed, and thereafter, the camera adjustment information is read, and at the time of writing the information in the IC card 8, the ID information and the camera adjustment information set or changed by an operation of each switch 10-13 are written simultaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera device to which a memory card for storing camera adjustment information is attachable / detachable.

[0002]

2. Description of the Related Art Conventionally, in a video camera device, various camera adjustments such as a pedestal adjustment value, a detail adjustment value, a gamma adjustment value, a system state setting value, a setting value when an external VTR (video tape recorder) is connected, etc. When setting a value, for example, select the desired item from the menu items corresponding to each setting operation mode displayed on the viewfinder, and set various numerical values corresponding to the selected operation mode. There is something.

Further, in the conventional video camera device, after various settings are made by using the above-mentioned menu function, the set data (camera adjustment information) is stored in, for example, an external storage device (for example, an IC card). There is also a device having a function of writing data to an IC card and conversely reading data of an IC card in which various setting data are stored.

[0004]

However, in the above-mentioned conventional video camera device, the above-mentioned set data is I
It has only the function of simply writing to the C card or simply reading the data stored in the IC card.

Therefore, in the conventional video camera device, for example, when the set data is written in the IC card, even if important data is written in the IC card, it is unconditionally overwritten. It will be.

On the contrary, when the data already stored in the IC card is read from the IC card, even if the data on the IC card is data that is not actually needed, the inside of the video camera device is The data of the IC card is overwritten in the memory and rewritten. At this time, if the data in the internal memory is necessary for shooting or the like, there is a risk that it may interfere with subsequent shooting.

Therefore, the present invention has been made in view of the above-mentioned circumstances, and when writing data to an IC card or reading data from an IC card,
It is an object of the present invention to provide a video camera device that can prevent data from being accidentally rewritten.

[0008]

The video camera device of the present invention has been made in view of such circumstances, and has an adjustment information storage area for storing camera adjustment information and an identification information storage area for storing identification information. And a memory card reading / writing means for reading information from a memory card (IC card) and writing information to the memory card, and at least reading information from the memory card and information to the memory card. Display means for displaying each menu item corresponding to each operation mode of writing and the identification information, and identification information setting changing means for setting or changing the identification information displayed on the display means. , When reading information from the memory card, read the identification information from the memory card When the camera adjustment information is read from the memory card after being displayed and confirmed on the means and the information is written to the memory card, the identification information set or changed by the identification information setting changing means and the camera adjustment information should be written at the same time. It is characterized by.

Here, the menu items displayed on the display means are a read menu item for reading information from the memory card, an identification information setting change menu item for setting or changing the identification information, and the identification information setting change. A writing menu item for writing the identification information and the camera adjustment information set or changed by the means to the memory card;
As an example, an item including a write protect menu item that prohibits writing of information to the memory card can be given.

The menu item displayed on the display means is selected by the cursor displayed on the display means. The display means is a viewfinder.

That is, the video camera device of the present invention is
It has a menu function and is set in the memory card when writing each adjustment / setting data of the camera to the storage device (memory card) or when reading the data from the memory card by using this menu function. By referring to the ID information (identification code), it is possible to prevent the data on the memory card or the data on the camera device side from being erroneously changed.

The ID information (identification code) uses the ID edit function of the menu function on the camera device side,
For example, it can be set by alphanumeric characters or special characters. Here, when writing data to the memory card, this ID information is also written at the same time. On the contrary, when reading data from the memory card, the ID information written in the memory card is displayed in the first read operation, and then in this state, the next read operation is performed and the ID information is written in the memory card. Data is read by the camera device.

[0013]

According to the present invention, when the camera adjustment information on the video camera device side is written to the memory card, the identification information set or changed by the identification information setting changing means can be added to the camera adjustment information and written. Also, when reading the camera adjustment information from the memory card, it is possible to confirm whether or not to read the camera adjustment information to the video camera device side by referring to the identification information already written in the memory card. I have to.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a video camera device according to an embodiment of the present invention. That is, as shown in FIG. 1, the video camera device of the embodiment of the present invention, for example, has a pedestal adjustment value, a detail adjustment value, a gamma adjustment value, a system state set value, a set value when an external VTR (video tape recorder) is connected, etc. Reading information from a memory card (IC card 8) having at least an adjustment information storage area for storing camera adjustment information and an identification information storage area for storing identification information (ID information), and storing information in the IC card 8. The detachable device 7 and the CPU 21 as the memory card reading / writing means for writing, and each menu item corresponding to at least each operation mode of reading information from the IC card 8 and writing information to the IC card 8 and the above. A display device (viewfinder) 5 for displaying the ID information and the display device 5 The display device includes the switches 10 to 13 as identification information setting changing means for setting or changing the ID information and reads the ID information from the IC card 8 when reading the information from the IC card 8. When the camera adjustment information is read from the IC card 8 and displayed on the IC card 8 after being displayed and confirmed, the ID information and the camera adjustment information set or changed by operating the switches 10 to 13 are displayed. Is written simultaneously.

Further, the menu items displayed on the display device (viewfinder) 5 are read menu items ("read" menu items) for reading each information from the IC card 8 as shown in FIG. 3 described later. , The identification information setting change menu item (“ID edit” menu item) for setting or changing the ID information, the ID information set or changed by the identification information setting changing means, and the camera adjustment information are written in the IC card 8. It includes a write menu item (“write” menu item) and a write protect menu item (“write protect” menu item) that prohibits writing of information to the IC card 8.

In FIG. 1, a signal processing unit 1 controls the entire system, and is a CPU (central processing unit) for controlling the execution of programs and various devices.
21, a ROM (Read Only Memory) 22 in which a control program is written, and a RA as a work area of the program and for backing up various data
An M (random access memory) 24, an I / O circuit 25 for reading switch information from each of the switches 10 to 13 described later and various controls, characters to be displayed on the display device (viewfinder) 5, and A character generator 26 for generating a video signal such as a cursor, and so-called EE in which camera adjustment information in the video camera device and camera adjustment information read from an IC card are written.
PROM (electrically erasable and programmable r
ead only memory) 23 and the like.

Further, the video camera apparatus of the present embodiment, together with the signal processing unit 1, the EEPROM 2 for each board in which various setting data are written and the D / A for outputting the control data from the CPU 21. (Digital / Analog) converter 3 and LSI for performing various processes
(Large-scale integrated circuit) 4 and external I / O port 9 for reading switch information from switches 14 and 15 described later
And the character information generated by the character generator 26 of the signal processing unit 1 as a viewfinder signal (video signal).
And a display device (viewfinder) 5 for displaying video signals such as characters from the display interface circuit 6.

Further, the CPU 21 of the signal processing unit 1 of the video camera device of this embodiment writes the camera adjustment information and ID information set in the video camera device to the IC card 8 or the IC card 8 concerned. When reading the camera adjustment information and ID information already stored in, the IC card 8 is also connected to the attachment / detachment device 7 for attaching / detaching to / from the video camera device of this embodiment.

As will be described later, the switch 10
Is an “UP” switch, and the above switch 1
1 is a “DOWN” switch, the switch 12 is an “ITEM” switch,
The switch 13 is set to “Cancel / Preset (CAN
CEL / PRESET) ”switch. In addition, the switch 14 is “Menu ON / OFF (MENU ON / OFF
OFF) "switch and switch 15 is a" PAGE "switch. Each of these switches
For example, it is configured by a button switch or a touch switch, and is provided in, for example, the main body of the video camera device.

In such a video camera device, the CPU 21 is connected to the ROM 22, the EEPROM 23, the RAM 24, and the I / O circuit 25 in the signal processing unit 1 via a bus line.

The CPU 21 controls each part by using a control program stored in the ROM 22, exchanges data with a RAM 24 as a work area, and receives data from the switches 10 to 13. By controlling the character generator 26 based on the switch information via the I / O circuit 25, the character generator 26 generates a character video signal or a cursor movement video signal corresponding to the switch operation.

The CPU 21 controls the switch 1
The character generator 26 is controlled based on the menu switch information supplied from 4, 15 through the I / O port 9 to display a menu display corresponding to the switch operation or a video signal of another menu screen by page turning. generate.

Further, the CPU 21 stores the information read from the IC card 8 via the attaching / detaching device 7,
After writing to the RAM 24 once, E if necessary
The control for writing to the EPROM 23 is performed, and conversely, the information read from the EEPROM 23 is written to the IC card 8 via the attachment / detachment device 7 as necessary.

Here, FIG. 2 shows an outline of the data structure of data written in (or read from) the IC card 8.

In FIG. 2, the data structure in this embodiment corresponds to the setting data area 31 which is the above various camera adjustment values used for photographing, for example, of the video camera device and the setting data area 31. The ID area 30 which is an identification code is added. The data including the setting data area 31 and the ID area 30 is stored in the IC card 8. The above I
As the ID information (identification code) of the D area 30, the ID information set in the menu function is written.

Next, FIG. 3 shows an example of the menu screen 40 displayed on the display device 5, that is, the viewfinder of the video camera device of this embodiment.

In FIG. 3, the menu screen 40 is displayed.
Is composed of menu items corresponding to four operation modes, and has the following functions.

First, the menu item of "READ" shows the contents stored in the IC card 8.
It corresponds to the operation mode for reading in the video camera device including the ID information. The "lead"
Move the cursor 42 to the menu item of and execute the operation (for example, turn on the switch 10 as described later)
And the first operation (first ON operation of the switch 10)
Then, the ID information written on the IC card 8 is displayed on the ID display area 41 following the display character "ID" on the menu screen 40 of the viewfinder (1 in the example of FIG. 3).
The actual data, that is, the camera adjustment information is read from the IC card 8 by the second operation (that is, the second ON operation of the switch 10). The ID information displayed on the ID display area 41 is 10 characters including the alphanumeric characters and special characters.
At this time, if the reading of the data from the IC card 8 fails or if the read data is incorrect, a warning display to that effect is displayed.

Next, the "WRITE" menu item is set by the various camera adjustment information set on the video camera device side and the "ID EDIT" menu item on the menu screen 40 described above. This corresponds to the operation mode in which the IC card 8 and the ID information are written together. At this time, if data has already been written in the IC card 8, a warning of "DATA EXIST" is displayed on the menu screen 40. Further, when the data set on the IC card 8 is overwritten, the operation is continuously performed. Here, when the write-protection to the IC card 8 is already set by the menu item of “WRITE PROTECT” described later, the data cannot be written to the IC card 8. At this time, the write-in operation is performed again after canceling the write-protection setting by the menu item of "write protect". Also in this case, when writing fails, a warning display to that effect is displayed.

"Write protect (WRITE PRO
The menu item "TECT)" is set to prevent the previously written data from being erased by writing (overwriting) the data on the IC card 8 first. It corresponds to the mode. By selecting the menu item of "write protect", the setting of "write protect" can be canceled. When the IC card 8 is not inserted in the attachment / detachment device 7, this "write protect" cannot be set.

The menu item "ID EDIT" is an item for setting ID information to be written in the IC card 8.

When selecting each of these menu items, the cursor 42 is moved to, for example, "Item (ITEM)".
M) ”switch 12 is used to move the switch from top to bottom, for example, and a desired menu item is selected, and the“ UP (up) ”switch 10 is turned on. On the contrary, the “DOWN” switch 11 is turned on or “Cancel / Preset (CANCE)
L / PRESET) switch 13 is turned on, the selection of the menu item is canceled.

When the menu screen itself is displayed, "Menu ON / OFF (MENU ON / O
When the FF) ”switch 14 is turned on, the menu screen is displayed. On the contrary, the display of the menu screen is canceled by turning it off. Further, when the "page" switch 15 is turned on, the menu screen moves to the menu screen of the next page.

Here, the ID setting when the menu item "ID edit" is selected is performed as follows. The ID is set by the switches 10 to 13 described above.
A method of setting the ID information by each of the switches 10 to 13 in the state where the processing is shifted to the menu item of "ID edit" is shown below.

[Up / Down (UP / DO) in the state where the processing is shifted to the menu item of the "ID edit".
WN) ”switches 10 and 11 function as switches for setting characters of ID information. For example, each time the "up" switch 10 is pressed, the characters registered in the ROM 22 as the characters of the ID information (the above-mentioned alphanumeric characters and special characters) are displayed one by one in the order of registration. Also, each time the "down" switch 12 is pressed, the characters in the above registration order are displayed one by one.

[0037] Also, the "item (ITEM)" when the process is moved to the menu item of the "ID edit"
The switch 12 is for changing the position where the character of the ID information is set.
Each time the button is pressed, the cursor (↓) 43 moves to the right, for example. When the cursor 43 is located at the tenth character (rightmost digit) in the ID display area, the "item" switch 12
When the button is pressed, the ID setting is completed, and the characters "OK (Y: UP)?" Are displayed to the right of the "ID edit" menu item. If the ID set at this time is acceptable, the "up" switch 10 is pressed. Switches other than the "up" switch 10 ("down" switch 11 or "cancel / preset (CANCEL / PRESE
T) ”switch 13) is pressed, the cursor (↓)
43 appears in the first character (leftmost digit) of the ID display area 41,
It is possible to recorrect the ID.

Next, in the case of the example of the menu screen 40 of FIG. 3 in the video camera device of the present embodiment, selection of menu items, setting of ID, writing of data to the IC card 8 or reading from the IC card 8 A series of data reading operations will be described with reference to the state transition diagram shown in FIG.

In FIG. 4, step ST1 is IC
This corresponds to the operation mode for reading the data of the card 8 into the video camera device. In step ST1, the “ID
The IC card in step ST2 is turned on by turning on the "up" switch 10 in the state where the cursor 42 is pointing to the "Edit" menu item and the process is not yet transferred to the "ID Edit" menu item. The operation of reading ID information from 8 to the video camera device starts. In step ST2, if the operation of turning on the “down” switch 11 or the “cancel” switch 13 is performed, step ST
Return to 1. Furthermore, if a read error occurs in step ST2 or the read data is invalid data, a warning display to that effect is displayed in step ST3. When the ID information is read from the IC card 8 to the video camera device in step ST2, the ID information and a confirmation request message are displayed on the menu screen 40 in step ST4. When the "up" switch 10 is turned on in step ST4 (that is, YES), data (camera adjustment information) is read from the IC card 8 in step ST5. Also,
If a read error occurs in step ST5 or the read data is invalid data, a warning to that effect is displayed in step ST6.

When the "cancel" switch 13 is turned on in step ST5, the process returns to step ST1.
When the "item" switch 12 is turned on, step ST7
Move on to. Further, turning on the "item" switch 12 in step ST1 and turning on the "item" switch 12 in step ST2 also shifts to step ST7.

This step ST7 corresponds to the operation mode for writing data from the video camera device to the IC card 8. In the step ST7, by turning on the "up" switch 10, the step ST7
At 9, the ID information and the confirmation request message are displayed. Then, in step ST8, confirmation or warning (write protect: WP, overwrite: O
W) is displayed. In step ST8,
When the "down" switch 11 or the "cancel" switch 13 is turned on, the process returns to step ST7. Further, in step ST8, the "up" switch 10
When is turned on, ID information and camera adjustment information are written in the IC card 8 in step ST10. When a writing error occurs in step ST10, a message indicating the writing error is displayed in step ST11. When the "cancel" switch 13 is turned on in step ST10, the process returns to step ST7.

When the "item" switch 12 is turned on in step ST10, the process proceeds to step ST12. Further, by turning on the "item" switch 12 in step ST8 and turning on the "item" switch 12 in step ST7,
Then, the process proceeds to step ST12.

The above-mentioned step ST12 is a process for the write protect operation mode. When the "up" switch 10 is turned on in this step ST12, write-protection write protection is given in step ST13, and when the "down" switch 11 is turned on, the write protection previously given in step ST14 is released. After the processing in steps ST13 and ST14, the process returns to step ST12.

When the "item" switch 12 is turned on in step ST12, step ST15
Proceed to. In step ST15, edit processing for setting ID information, that is, setting or changing processing is performed. In step ST15, when the "up" switch 10 is turned on, the process proceeds to step ST16.

In step ST16, the first character of the ID is set. When the "cancel" switch 13 is turned on in step ST16, the first character column of the ID display area 41 on the menu screen 40 becomes blank in step ST17, and then the process returns to step ST16. Further, if the "up" or "down" switch 10 or 11 is turned on in step ST16, step ST16
At 18, the ID character (alphanumeric character, special symbol) of the first character is incremented or decremented by 1, and then the process returns to step ST16.

When the "item" switch 12 is turned on in step ST16, the process proceeds to step ST19, and the second character of the ID is set in step ST19. “Cancel” in step ST19
When the switch 13 is turned on, the second character column of the ID display area 41 on the menu screen 40 becomes blank in step ST20, and then the process returns to step ST16. Also,
When the "up" or "down" switch 10 or 11 is turned on in step ST19, character feeding is performed to increase or decrease the second ID character by 1 in step ST21, and then the process returns to step ST19.

Thereafter, the same operation is repeated from the third character to the tenth character of the ID. In step ST22 for setting the tenth character, which is the last character of the ID, when the "Cancel" switch 13 is turned on, the second character column of the ID display area 41 on the menu screen 40 is displayed in step ST23. Becomes blank, and then the process returns to the step for setting the ninth character. Also, step S
When the "up" or "down" switch 10 or 11 is turned on at T22, at step ST24
Character feed is performed in which the ID character of the character increases or decreases by one, and then the process returns to step ST22.

When the "item" switch 12 is turned on in the step ST22 after the setting of the tenth character is completed, the edit end confirmation processing of step ST25 starts. When the "down" or "cancel" switch 11 or 13 is turned on in step ST25, the process returns to step ST16. When the "up" switch 10 is turned on in step ST25, the process returns to step ST15.

When the "item" switch 12 is turned on in step ST15, the process returns to step ST1.

From the above, in this embodiment, I
By making the C card 8 have the ID function, the following improvements can be expected. That is, when writing data to the IC card 8, the ID information written on the IC card 8 can be confirmed in advance by using the menu function on the video camera device side. When this ID information is a code representing important data, by confirming this, it is possible to prevent the data written on the ID card 8 from being accidentally erased by the writing function of the video camera device. It becomes possible to prevent it.

Also, when reading data from the IC card 8, the ID information written on the IC card 8 can be confirmed in the same manner as when writing data. This ID
Since it is possible to confirm whether or not the data from the IC card 8 may be read by looking at the information, the data from the IC card 8 is erroneously read and stored in the internal memory (EEPROM 23) on the video camera device side. It becomes possible to prevent the existing data from being erased.

[0052]

As is apparent from the above description, in the video camera device of the present invention, when the camera adjustment information on the video camera device side is written to the memory card, the identification information setting changing means is added to the camera adjustment information. Therefore, the identification information set or changed is added and written, and when the camera adjustment information is read from the memory card, the camera adjustment information is recorded by referring to the identification information already written in the memory card. Since it is possible to confirm whether to read to the camera device side, when writing setting data to the memory card or reading data from the memory card, the data may be accidentally rewritten. It can be prevented.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a schematic configuration of a video camera device according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining a data structure stored in the IC card of the present embodiment.

FIG. 3 is a diagram showing an example of menu items and ID information on a menu screen.

FIG. 4 is a state transition diagram for explaining a series of operations for selecting a menu item, setting an ID, writing data to an IC card, or reading data from an IC card in the video camera device of the present embodiment.

[Explanation of symbols]

1 ... Signal processing unit 2 ... EEPROM for each board 3 ... D / A converter for each board 4 ... Various LSIs 5 ... Display device (viewfinder) 6 ... Display interface circuit 7 ... Attachment / detachment device 8 ... IC Card 9 ... I / O port 21 ... CPU 22 ... ROM 23 ... EEPROM in signal processing unit 24 ...・ ・ RAM 25 ・ ・ ・ ・ ・ ・ ・ I / O circuit 10 ・ ・ ・ ・ ・ ・ ・ 「Up」 switch 11 ・ ・ ・ ・ ・ ・ ・ 「Down」 switch 12 ・ ・ ・ ・ ・ ・ ・ 「Item」 Switch 13 ... "Cancel / Preset" switch 14 ... "Menu ON / OFF" switch 15 ..... "Page" switch 30 ..... ID area 31 ..... Setting data area 40 ..... Menu screen 41 .. ... ID display area 42,43 ... Cursor

Claims (4)

[Claims] 1. A memory card reading for reading information from and writing information to a memory card having at least an adjustment information storage area for storing camera adjustment information and an identification information storage area for storing identification information. / Writing means, at least display means for displaying each menu item corresponding to each operation mode of reading information from the memory card and writing information to the memory card, and the identification information, and displaying on the display means When the information is read from the memory card, the identification information is read from the memory card and displayed on the display means for confirmation. Later, the above camera adjustment information is read from the memory card, and the When writing information, the video camera device characterized in that the identification information set or changed by the identification information setting changing means and the camera adjustment information are written at the same time. 2. The video camera device according to claim 1, wherein the display means is a viewfinder. 3. The video camera device according to claim 1, wherein the menu item displayed on the display means is selected by a cursor displayed on the display means. 4. The menu items displayed on the display means include a read menu item for reading information from the memory card, an identification information setting change menu item for setting or changing the identification information, and the identification information setting change means. 2. The write menu item for writing the identification information and the camera adjustment information set or changed in step 3 to the memory card and the write protect menu item for prohibiting writing of information to the memory card. Video camera equipment.