JPH0963192A - Data recording device and data recording method - Google Patents

Abstract

(57) [PROBLEMS] To provide a data recording device capable of normally restarting recording of data on a recording medium even when the recording medium is taken out during data recording. When detecting that a lid covering an insertion port of a recording medium is opened, a general control unit immediately stops the recording operation of image data on the recording medium to complete a chain of FAT and a directory. The RAM 12 stores information about the recording state such as the file name and file size and the volume serial number. When the recording medium 10 is taken out and re-inserted into the opening, the information stored in the RAM 12 is referred to determine the identity of the recording medium. Information regarding the state of recording is read and recording is restarted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording device and a data recording method for recording data on a removable recording medium, and more particularly, when the recording medium is taken out during data recording, the data recorded on the recording medium is lost. The present invention relates to a data recording device and a data recording method having a data protection function for preventing the data from being exposed.

[0002]

2. Description of the Related Art Conventionally, in a data recording device for recording data on a removable recording medium, the following two recording medium ejecting methods are known.

That is, (1) floppy disk (3.5
Inch, 5.25 inch, etc.) is a method of taking out the recording medium by a mechanical mechanism method when the recording medium is used.

(2) A method of taking out the recording medium by a so-called loading method when the magneto-optical disk is used as the recording medium.

In the data recording apparatus having such a recording medium ejecting method, the recording medium is prevented from being ejected during data recording, for example, by displaying on the display means that data is being recorded. .

[0006]

In the above-mentioned conventional data recording apparatus, the display on the display means warns the user to prevent the recording medium from being taken out during data recording. In the method, the user may erroneously take out the recording medium during data recording without noticing the display. In this case, since the data being recorded remains in the recording medium, the writing of the data to the recording medium is performed. There was a case where data could not be written normally when restarting.

An object of the present invention is to provide a data recording apparatus which can normally resume recording of data on a recording medium even if the recording medium is taken out during data recording.

[0008]

According to the first aspect of the present invention,
Mounting means for mounting the recording medium, recording means for recording data on the recording medium mounted by the mounting means, discharging means for discharging the recording medium mounted on the mounting means to the outside of the apparatus, and the discharging means. On the other hand, in a data recording apparatus having a discharge instruction means for instructing the discharge of the recording medium to the outside of the apparatus, when the discharge of the recording medium is instructed during data recording, the data recorded on the recording medium is protected. It is characterized in that it is provided with a data protection means.

According to a second aspect of the present invention, in the data recording apparatus according to the first aspect, the data protection means detects a preliminary state for ejecting the recording medium to the outside of the apparatus, and the detection means. In response to the output of the data, the interrupting means for interrupting the recording operation of the data, and the file management data creating means for creating the file management data for managing the data recorded up to the interrupted time as a file. Characterize.

According to a third aspect of the present invention, in the data recording apparatus according to the first aspect, the data protection means detects a preliminary state for ejecting the recording medium to the outside of the apparatus, and the detection means. In accordance with the output of the data recording device, the data recording operation is interrupted, and the data recorded up to the time of the interruption is erased from the recording medium.

According to a fourth aspect of the present invention, in the data recording apparatus according to the second or third aspect, the preliminary state detected by the detecting means is such that a lid portion that covers the recording medium mounted on the mounting means is opened. It is characterized in that it is in a state where

According to a fifth aspect of the present invention, in the data recording apparatus according to any of the second to fourth aspects, the discharge instruction means is a discharge instruction switch having at least two stages of first and second strokes. It is characterized in that the preliminary state detected by the detection means is a state in which the discharge instruction switch is pushed in between the first stroke and the second stroke.

According to a sixth aspect of the present invention, in the data recording apparatus according to the first aspect, the data protection means detects that the ejection means has instructed the ejection means to eject the recording medium. Detecting means, and an interruption means for interrupting the ejection of the recording medium by the ejection means for a predetermined period according to the output of the detection means to interrupt the recording operation, and recording by the interruption point during the predetermined period. File management data creating means for creating file management data for managing the created data as a file.

According to a seventh aspect of the present invention, in the data recording apparatus according to the sixth aspect, the file management data created by the file management data creating means is a file allocation table, a directory, and a volume serial number unique to the recording medium. It is characterized by including.

According to an eighth aspect of the invention, in the data recording apparatus according to the first aspect, the data protection means detects that the ejection means has instructed the ejection means to eject the recording medium. The detection means, the interruption means for prohibiting the ejection of the recording medium by the ejection means for a predetermined period according to the output of the detection means, and the recording operation are interrupted, and the recording is performed by the interruption point during the predetermined period. And an erasing means for erasing data.

According to a ninth aspect of the present invention, there is provided a data recording method for mounting a recording medium, recording data on the mounted recording medium, and instructing the discharge of the recording medium to the outside of the apparatus. When the ejection of the recording medium is instructed, the data recorded on the recording medium is protected.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment) FIG. 1 is a block diagram showing the schematic arrangement of a data recording apparatus according to the first embodiment of the present invention. The data recording device of the present embodiment is
This is a so-called electronic camera that converts a subject image into image data of an electric signal and records the image data on a recording medium.

As shown in the figure, the data recording device includes a lens 1, a shutter 2, an image sensor 3, a first signal processing circuit 4, an A / D converter 5, a second signal processing circuit 6, and a DRAM.
(A read / write memory that requires a memory hold operation)
7, EEPROM (electrically erasable and programmable programmable ROM) 8, medium control I / F (interface) unit 9, recording medium 10, overall control unit 11, RAM 1
2, a timing generation unit 13, and an external I / F unit 14, and an overall control unit 11, a second signal processing circuit 6,
The DRAM 7, the EEPROM 8, the medium control I / F unit 9, and the external I / F unit 14 are connected to each other via a bus.

The image pickup device 3 includes a lens 1 and a shutter 2.
The subject image formed via the is converted into analog image data. The first signal processing circuit 4 performs various kinds of correction and clamping processing on the image data output from the image sensor 3. The A / D converter 5 converts the image data processed by the first signal processing circuit 4 into digital image data. The second signal processing circuit 6 performs processing such as compression on the image data converted into a digital signal by the A / D converter 5.

The DRAM 7 temporarily stores at least one screen of image data that has been subjected to processing such as compression by the second signal processing circuit 6. The EEPROM 8 is composed of a FLASH memory or the like, and stores image data for at least one screen. The medium control I / F unit 9 transfers image data between the recording medium 10 and each unit of the data recording apparatus.
The recording medium 10 is a removable recording medium such as a hard disk or a FLASH memory, and records or reads image data.

The overall controller 11 controls the entire apparatus.
The RAM 12 stores various data used in the overall control unit 11. The timing generator 13 outputs various timing signals to the image sensor 3 and the A / D converter 5.
The external I / F unit 14 transmits the image data to an external computer or the like (not shown).

Next, a method of recording image data on the recording medium 10 will be described with reference to FIG. FIG. 2 shows a recording medium 1
It is a figure which shows the structure of the management area | region and file area | region produced | generated by 0. The recording medium 10 is divided into a management area and a file area, and a set of the management area and the file area is called a drive. One or more drives are generated on the recording medium 10. As shown in the figure, one drive is
It has a unique identification number (hereinafter referred to as volume serial number) and a unique identification name (hereinafter referred to as volume label).

The management area is composed of a reserved area, a file allocation table (hereinafter referred to as FAT), and various areas for managing files such as directories.

The file area is an area for recording actual image data, and an access unit of this file area is called a cluster. Each file is composed of a number of clusters according to its data size.

The FAT has an entry corresponding to each cluster, and the value of the entry corresponding to the continuous cluster is recorded in each entry. When there is no continuing entry (when the entry corresponds to the last cluster of the file), a value indicating that is recorded. The file name, file size, the value of the entry corresponding to the first cluster of the file, the date, etc. are recorded in the directory.

The FAT is often recorded in duplicate at a plurality of locations in the management area. This is done in order to ensure reliability because when the FAT data becomes unreadable, the information recorded on the recording medium cannot be read. Not limited to this, with respect to FAT, some measure is often taken to ensure reliability.

Next, the basic operation of the data recording device is shown in FIG.
This will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the data recording device at the time of shooting.

First, when an image capturing / recording command is input to the overall control unit 11 by a switch or the like (not shown) (or an image capturing / recording command command from an external computer or the like not shown is transmitted via the external I / F unit 14). Input), the overall control unit 11 executes an imaging recording operation.

That is, the shutter 2 is driven to perform exposure (step S300), and image data (analog signal) is read from the image sensor 3 (step S30).
1). This image data is subjected to various kinds of processing such as color correction by the first signal processing circuit 4 (step S302), A
The signal is converted into a digital signal by the / D converter 5 (step S303), is input to the DRAM 7 as a buffer memory via the second signal processing unit 6, and is temporarily stored.
The image data stored in the DRAM 7 is input to the second signal processing circuit 6 again, is subjected to compression processing, and is then again processed by the DRA.
It is input to M7 and stored (step S304).

In the above-mentioned processing, the image data converted into the digital signal by the A / D converter 5 is compressed in real time by the second signal processing unit 6, and DRA
You may make it memorize | store in M7. It is also possible to omit the compression process.

Next, in step S304, DR
The image data stored in the AM 7 is stored in the medium control I / F unit 9
Is input to the recording medium 10 via the FAT, the FAT is referred to, and the information is recorded in the area of the recording medium 10 in which no information is recorded (step S305).

When the recording of the image data in the file area is completed, a directory for the recorded image data is generated and the FAT is updated (step S).
306). That is, the overall control unit 11 detects an area in which data is already recorded in the file area based on the FAT value, and the DRAM is provided in an area other than the detected area.
The image data once stored in 7 is transmitted and recorded, and a value indicating the connection of clusters is recorded in the entry corresponding to the cluster of the newly recorded image data.

Next, the characteristic operation of the data recording device will be described with reference to FIGS. FIG. 4 is a perspective view of an electronic camera as a data recording device according to the present embodiment as seen from the back side.

In the figure, 20 is the main body of the data recording device, 21 is a release switch, 22 is an opening for inserting a recording medium, 23 is an eject switch for taking out the recording medium, and 24 is the opening / closing of the lid 25. A detection switch 25 for performing the operation is a lid that covers the opening 22, the eject switch 23, and the detection switch 24. The opening / closing of the lid 25 turns on / off the detection switch 24, whereby the overall control unit 11 detects opening / closing of the lid 25.

5 and 6 show the data recording operation of the data recording device (steps S305 and S30 in FIG. 3).
6 is a flowchart showing a process in the case where the overall control unit 11 detects that the lid 25 has been opened during the execution of the process in (6).

Upon detecting that the lid 25 is opened by turning on the detection switch 24, the overall control section 11 immediately stops the recording operation of the image data on the recording medium 10 (step S400), and links the FAT and the directory. Is completed (step S401).

That is, regarding the FAT, the FAT chain corresponding to the image data recorded halfway is completed, and the value indicating the end of the file is recorded. Further, regarding the directory, processing such as matching the information about the file size with the size of the recorded image data is performed. Incidentally, the order of the above-mentioned FAT and directory processing is arbitrary.

Next, the information regarding the recording state such as the file name and the file size, and the volume serial number are stored in the RAM 12 (step S402), and the DRA is stored.
All the image data in M7 is copied to the EEPROM 8 (step S403). After a lapse of a predetermined time in this state, the medium and the electronic camera body are powered off except for at least a part of the overall control unit 11 (step S40).
4) Wait for the user to perform either operation of closing the lid 25 again or removing the recording medium 10 (step S405).

When the lid 25 is closed again, the power is turned off after the elapse of the predetermined time (step S406), and the information about the recording state stored in the RAM 12 and the recording medium are stored. Then, the recording of the image data on the recording medium 10 is restarted (steps S407 and S408).

That is, first, the file in the middle of recording is searched from the files stored in the recording medium 10. next,
The address of the image data in the EEPROM 8 where the recording should be continued is determined from the file size, and the recording is continued from this address and the FAT is updated.

Then, the storage state such as the file name and file size stored in the RAM 12 and the volume serial number specific to the drive (medium specific) are deleted, and the image data recording medium for which recording is interrupted is erased. Recording is completed (step S409), and the process ends.

When the recording medium 10 is taken out, the process waits until the recording medium is inserted into the opening 22 (step S410). When a recording medium is inserted into the opening 22, this causes an interrupt (step S41).
1) When the power of the data recording apparatus main body is turned off, the overall control unit 11 turns it on (step S41).
2).

Next, the volume serial number of the image data recorded halfway is read from the RAM 12, and this volume serial number is compared with the volume serial number of the newly inserted recording medium (step S413), and they match. If the recording medium 10 taken out is reinserted, that is, R
Information regarding the recording state such as the file name and file size is read from the AM 12 and recording is restarted (steps S414 and S415).

That is, first, the file name of the file stored in the recording medium is searched for the image data file in which the recording is interrupted. Next, based on the information about the file size of the file, the EEPROM 8 that should continue recording
The internal address is calculated, and the image data is continuously recorded from this address, and the FAT is updated.

Then, the information about the recording state such as the file name and the file size in the RAM 12 and the volume serial number are erased, and the recording of the interrupted image data on the recording medium is completed (step S41).
6), end the process.

If the volume serial number of the image data recorded halfway and the volume serial number of the newly inserted recording medium do not match,
That is, when a recording medium different from the taken-out recording medium is inserted, all the image data is recorded as a new file in the recording medium (step S417).

When the recording is completed, all the data such as the recording state in the RAM 12 is erased (step S41).
8), the process ends.

As described above, in the data recording apparatus of this embodiment, when the lid 25 covering the opening 22 is opened during the recording of the image data, the recording of the image data is interrupted and the FAT is stopped. Since the file management data such as the directory and the like are completed and stored in the RAM 12, the recording of the image data on the recording medium 10 can be normally resumed even if the recording medium 10 is taken out during the data recording.

In the above embodiment, it is judged by comparing the volume serial numbers whether or not the recording medium inserted in the opening 22 is the same as the one taken out. The present invention is not limited to this, and the determination may be made by comparing the volume labels. Further, in order to further improve reliability, both the volume serial number and the volume label may be used to check the identity.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 7 and 8.
The basic structure of the data recording apparatus of this embodiment is the same as that shown in FIGS. 1, 2 and 4, and the basic operation is the same as that shown in FIG. Will be described.

7 and 8 are flowcharts showing the processing when the lid 25 is opened during the recording operation of the data recording apparatus (during the processing in steps S305 and S306 in FIG. 3).

During the data recording operation, the overall control unit 11
When the opening of the lid 25 is detected by the output of the detection switch 24, the recording operation of the image data is immediately stopped (step S500), and the processing regarding the FAT and the directory is performed (step S501).

That is, as to the FAT, predetermined data which means unused (usable) is recorded in the corresponding entry of the FAT area of the image data recorded up to that point.

As for the directory, all the data (recording status such as file name and file size, and file creation date) relating to the file in the middle of recording in the directory is unused (usable). Rewrite with data. As a result, the file being recorded is erased. The order in which the above-mentioned FAT and directory processing is performed is arbitrary.

Next, data indicating that there is image data to be recorded on the recording medium 10 is stored in the RAM 1
2 (step S502). The form of this data is arbitrary.

Next, the image data in the DRAM 7 is EEP
All are copied to the ROM 8 (step S503). In this state, after a lapse of a predetermined time, power of the medium and the electronic camera body is turned off except for at least a part of the overall control unit 11 (step S504), the lid 25 is closed again, or the recording medium 10 is taken out. The user waits for any one of the operations (step S505).

When the lid 25 is closed again, if the power of the data recording device is turned off after the elapse of the predetermined time, this is turned on (step S506), and the image data is started as a new file on the recording medium 10. All are recorded (step S507). When recording is completed, RAM1
Data indicating that there is image data to be recorded in the recording medium 10 stored in No. 2 is deleted (step S508).

The recording medium 10 is not closed by the lid 25.
When the recording medium 1 is removed, the recording medium 1
It waits until 0 is inserted (step S509). When a recording medium is inserted into the opening 22, an interrupt occurs (step S510), and the overall control unit 11 turns on the power of the data recording device when the predetermined time has elapsed (step S511). ), All the image data is recorded as a new file on the recording medium 10 from the beginning (step S512). When recording is completed, RAM12
From the data indicating that there is image data to be recorded on the recording medium 10 (step S
513), the processing ends.

As described above, according to the data recording apparatus of the present embodiment, when the lid 25 covering the opening 22 is opened during the recording of the image data, the recording of the image data is interrupted. Since it is assumed that predetermined data that means unused is stored in the FAT of a partially recorded file and the directory is erased, even when the recording medium 10 is taken out during data recording, the recording medium 10 Data recording to can be resumed normally. Further, the same effect can be obtained by completing the file management data without erasing and leaving it as one file. When re-recording, all may be recorded from the beginning with another name or with the same name (overwriting).

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 9 is a perspective view of an electronic camera as a data recording device according to the present embodiment as viewed from the back. The other basic configuration of the data recording apparatus of the present embodiment is the same as that shown in FIGS. 1 and 2, and the basic operation is the same as that shown in FIG. Will be described.

In FIG. 9, 30 is a data recording apparatus main body, 31 is a release switch, and 32 is an opening for inserting the recording medium 10. Reference numeral 33 denotes a dual-purpose switch having the functions of the eject switch 23 and the detection switch 24 shown in FIG. The dual-purpose switch 33 is 2
It has a stepped stroke, and functions in the same manner as when the detection switch 24 is turned on in the first stroke (when it is detected that the lid 25 in FIG. 4 is opened), and in the second stroke, the eject in FIG. The same functions as when the switch 23 is pressed.

That is, when the dual-purpose switch 33 is pushed to the first stroke, the overall control section 11 causes the recording medium 10 to move.
Judging that it is in a preliminary state where the removal of
When pushed to the second stroke, the overall control unit 11
Performs ejection of the recording medium 10 by a mechanical mechanism.

In the data recording apparatus of this embodiment, the state in which the dual-purpose switch 33 is pushed up to the first stroke is the same as the state in which the lid 25 is opened in the first and second examples. Yes, when returning to the original state from the first stroke, it is the same as when the lid 25 is closed again without taking out the recording medium 10, and the dual-purpose switch 3 is used until the second stroke.
When 3 is pushed in, it is the same as when the recording medium 10 is taken out without the lid 25 being closed again, so the detailed description of the operation is omitted.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a perspective view of an electronic camera as a data recording device according to the present embodiment as viewed from the back. The other basic configuration of the data recording device of the present embodiment is the same as that shown in FIGS. 1 and 2, and the basic operation is the same as that shown in FIG. It will be diverted and explained.

In FIG. 10, reference numeral 40 is a data recording device main body, 41 is a release switch, 42 is an opening for inserting the recording medium 10, and 43 is an eject switch.

In the data recording apparatus of this embodiment, the state of the eject switch 43 can be detected by the overall control section 11. Eject switch 43
When the overall control unit 11 detects that the switch has been turned on, the loading mechanism causes the recording medium to be ejected.

FIG. 11 is a flow chart showing the process when the eject switch 43 is pressed during the data recording of the data recording device (during the process in steps S305 and S306 in FIG. 3).

The overall control unit 11 uses the eject switch 4
When it is detected that 3 is pressed, the operation of recording the image data on the recording medium 10 is immediately stopped (step S60).
0), processing for FAT and directory is performed (step S601). That is, as for the FAT, the FAT chain corresponding to the image data recorded halfway is completed, and the value indicating the end of the file is recorded. Further, regarding the directory, the directory is completed by performing processing such as matching the information regarding the file size in the directory with the size of the image data already recorded. The order of processing the FAT and the directory is arbitrary.

Next, the recording state of the image data recorded halfway and the volume serial number are recorded in the RAM 12.
(Step S602). Next, after copying all the image data in the DRAM 7 to the EEPR0M8 (step S603), the recording medium 10 is ejected (step S).
604). After a lapse of a predetermined time after ejecting the recording medium 10, the medium and the data recording apparatus main body are turned off except at least a part of the overall control unit 11 (step S60).
5) Then, it waits until the recording medium is inserted into the opening 42 again (step S606).

Here, the operation when the recording medium 10 taken out or another recording medium is inserted into the opening 42 is the same as that of the first embodiment shown in FIG. The detailed description is omitted.

As described above, in the data recording apparatus of this embodiment, when the eject switch 43 is pressed during the recording of the image data, the recording of the image data is interrupted and the FAT and the directory are completed. After that, the recording medium is ejected, so that even if the recording medium is taken out during the recording of the data, the recording of the data on the recording medium can be normally restarted.

Incidentally, in the present embodiment, the identity of the recording medium is judged by the method of comparing the volume serial numbers, but the present invention is not limited to this, and it is judged by comparing the volume labels. Good.
Further, in order to further improve the reliability, the identity of the recording medium may be checked by using both the volume serial number and the volume label.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIG. The basic configuration of the data recording device of this embodiment is as shown in FIGS.
10 is the same as that shown in FIG. 10 and the basic operation is the same as that shown in FIG.

FIG. 12 is a flow chart showing the processing when the eject switch 43 is pressed during the recording operation of the data recording apparatus (during the processing in steps S305 and S306 in FIG. 3).

When the overall control unit 11 detects that the eject switch 43 has been pressed during the image data recording operation, it immediately stops the image data recording operation (step S700), and performs the FAT and directory processing (file (Erasing) is performed (step S701). That is,
Regarding FAT, predetermined data that means unused (usable) is recorded in the corresponding entry of the FAT area of the image data recorded up to that point. Next, data about files in the directory that are being recorded (file name, file size, file creation date, etc.)
Are all rewritten to predetermined data meaning unused (usable). As a result, the file being recorded is erased. It should be noted that the order of performing the processing regarding the FAT and the directory is arbitrary.

Next, data indicating that there is image data to be recorded on the recording medium 10 is stored in the RAM 1
2 (step S702). The form of this data is arbitrary.

Next, the image data in the DRAM 7 is EEP
After copying everything to the ROM 8 (step S703), the recording medium 10 is ejected (step S704). After a predetermined time has elapsed since the eject switch 43 was pressed, the power of the medium and the electronic camera body is turned off except for at least a part of the overall control unit 11 (step S705), and the process waits until the recording medium 10 is inserted again. (Step S70
6).

Here, the operation when the recording medium 10 taken out or another recording medium is inserted again and an interrupt occurs is the same as that of the second embodiment shown in FIG. Is omitted.

As described above, in the data recording apparatus of the present embodiment, when the eject switch 43 is pressed during the recording of the image data, the recording of the image data is interrupted and the recording is performed halfway. Since it is assumed that predetermined data that means unused is stored in the FAT of the file and the directory and the file is erased, even if the recording medium 10 is taken out during the data recording, the data recording on the recording medium 10 is performed. You can resume normally.
Further, the same effect can be obtained by completing the file management data without erasing and leaving it as one file. When re-recording, all may be recorded from the beginning with another name or with the same name (overwriting).

In the first to fifth embodiments of the present invention, the recorded image data is transferred from the DRAM 7 to the EEPR0.
Copy to M8 (steps S403, 503, 603,
703), but the EEPROM 8 can be omitted by backing up the power supply of the DRAM 7. Further, if the same effect is obtained, the DRAM
It doesn't have to be.

[0082]

According to the first aspect of the invention, when the ejecting means instructs the ejecting means to eject the recording medium during data recording, the data recorded on the recording medium by the data protecting means. Since the data is protected, it is possible to normally resume the recording of the data on the recording medium even when the recording medium is taken out during the data recording.

According to the second aspect of the present invention, the detection means detects the preliminary state for ejecting the recording medium to the outside of the apparatus, and the interruption means performs the data recording operation according to the output of the detection means. Since the file management data for managing the data recorded up to the time when the recording operation is interrupted and the recording operation is interrupted by the file management data creating means is created, when the recording medium is taken out during the data recording. Also, recording of data on the recording medium can be normally resumed.

According to the third aspect of the invention, the detection means detects the preliminary state for ejecting the recording medium to the outside of the apparatus, and the interruption means determines the recording operation of the data according to the output of the detection means. The data recorded up to the time of the interruption is erased from the recording medium by the erasing means.

According to the fourth aspect of the present invention, the state in which the detection unit opens the lid that covers the recording medium mounted on the mounting unit is a preliminary state for ejecting the recording medium to the outside of the apparatus. Since it is detected, even if the recording medium is taken out during the data recording, the recording of the data on the recording medium can be normally restarted.

According to the fifth aspect of the present invention, the discharge instruction means comprises a discharge instruction switch having at least two stages of first and second strokes.
Since the state in which the ejection instruction switch is pushed between the first stroke and the second stroke is detected as a preliminary state for ejecting the recording medium to the outside of the apparatus,
Even when the recording medium is taken out during the data recording, the recording of the data on the recording medium can be normally resumed.

According to the sixth aspect of the invention, the detecting means detects that the ejecting means has instructed the ejecting means to eject the recording medium, and the interrupting means is output according to the output of the detecting means. A file for managing the data recorded by the file management data creation unit as a file by prohibiting the ejection of the recording medium by the ejection unit for a predetermined period and interrupting the recording operation. Since the management data is created, even if the recording medium is taken out during the data recording, the recording of the data on the recording medium can be normally restarted.

According to the invention described in claim 7, the file management data creating means creates the file management data including the file allocation table, the directory, and the volume serial number unique to the recording medium. Even when the medium is taken out, the recording of the data on the recording medium can be normally resumed.

According to the eighth aspect of the present invention, the detecting means detects that the ejecting means has instructed the ejecting means to eject the recording medium, and according to the output of the detecting means. Since the suspending means prohibits the discharging means from discharging the recording medium for a predetermined period of time, the recording operation is interrupted, and the data recorded up to the interrupted point during the predetermined period of time is erased by the erasing means, so that the data is being recorded Even when the recording medium is taken out, the recording of data on the recording medium can be normally resumed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a data recording device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of one drive stored in a recording medium.

FIG. 3 is a flowchart showing a basic operation of the data recording device according to the first embodiment of the present invention.

FIG. 4 is a perspective view of the same device as seen from the back side.

FIG. 5 is a flowchart showing a characteristic operation of the device.

FIG. 6 is a flowchart showing a characteristic operation of the device.

FIG. 7 is a flowchart showing a characteristic operation of the data recording device according to the second embodiment of the present invention.

FIG. 8 is a flowchart showing a characteristic operation of the data recording device according to the second embodiment of the present invention.

FIG. 9 is a perspective view of a data recording device according to a third embodiment of the present invention as seen from the back side.

FIG. 10 is a rear perspective view of a data recording device according to a fourth embodiment of the present invention.

FIG. 11 is a flowchart showing a characteristic operation of the device.

FIG. 12 is a flowchart showing a characteristic operation of the fifth exemplary embodiment of the present invention.

[Explanation of symbols]

 1 Lens 2 Shutter 3 Image Sensor 4 First Signal Processing Circuit 5 A / D Converter 6 Second Signal Processing Circuit 7 DRAM 8 EEPROM 9 Medium Control I / F Unit 10 Recording Medium 11 Overall Control Unit 12 RAM 13 Timing Generation 14 External I / F

Claims (9)

[Claims] 1. Mounting means for mounting a recording medium, recording means for recording data on the recording medium mounted by the mounting means, and discharging means for discharging the recording medium mounted on the mounting means to the outside of the apparatus. In a data recording apparatus having a discharge instruction means for instructing the discharge means to discharge the recording medium to the outside of the apparatus, if the discharge of the recording medium is instructed during data recording, the data is recorded on the recording medium. A data recording device comprising a data protection means for protecting the stored data. 2. The data protection means includes a detection means for detecting a preliminary state for ejecting the recording medium to the outside of the apparatus, and an interruption means for interrupting the data recording operation according to the output of the detection means. And a file management data creating means for creating file management data for managing the data recorded up to the point of interruption as a file.
The described data recording device. 3. The data protection means detects a preliminary state for ejecting the recording medium to the outside of the apparatus, and an interruption means for interrupting the data recording operation according to the output of the detection means. And erasing means for erasing the data recorded up to the point of interruption from the recording medium.
The described data recording device. 4. The preliminary state detected by the detection means is a state in which a lid portion that covers the recording medium mounted on the mounting means is opened.
The described data recording device. 5. The discharge instruction means comprises a discharge instruction switch having at least two stages of first and second strokes, and the preliminary state detected by the detection means is such that the discharge instruction switch detects the first stroke and the second stroke. The data recording device according to any one of claims 2 to 4, wherein the data recording device is in a state of being pressed into a stroke. 6. The data protection means detects the ejection means instructing the ejection means to eject the recording medium, and the ejection means according to the output of the detection means. Interruption means for prohibiting the ejection of the recording medium by the means for a predetermined period and interrupting the recording operation, and a file for creating file management data for managing the data recorded up to the interruption point during the predetermined period as a file The data recording device according to claim 1, further comprising management data creating means. 7. The file management data created by the file management data creating means includes a file allocation table, a directory, and a volume serial number unique to a recording medium.
On-board data recording device. 8. The data protection means includes a detection means for detecting that the discharge instruction means has instructed the discharge means to discharge a recording medium, and the discharge means according to the output of the detection means. 7. An interruption means for prohibiting the ejection of the recording medium by a predetermined period to interrupt the recording operation, and an erasing means for erasing the data recorded up to the interruption point during the predetermined period. 1. The data recording device according to 1. 9. A data recording method of mounting a recording medium, recording data on the mounted recording medium, and instructing discharge of the recording medium to the outside of the apparatus, wherein the recording medium is discharged during data recording. A data recording method, which protects data recorded on the recording medium when instructed.