JP2003323267A - Recording/reproducing apparatus, edit method, program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify 'Undo' processing in a recording/reproducing apparatus. <P>SOLUTION: For example, in a so called IC recorder or other recording/ reproducing apparatus incorporating a fixed memory, in addition to first management data including management information corresponding to the latest edit content, second management data including management information immediately before updating of the management information are at least stored. Accordingly, the management information immediately before the latest edit (update) can be stored on the recording/reproducing apparatus side, so that, for example, it becomes possible to perform 'Undo' processing without keeping a state before edit on a PC side and to perform 'Undo' processing by the recording/ reproducing apparatus alone. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a recording / reproducing apparatus,
And an editing method in this recording / reproducing apparatus, and recording / reproducing
The present invention relates to a program executed by a playback device and a recording medium recording this program.

[0002]

2. Description of the Related Art So-called IC (Integrated Circuit) recorders that can record and reproduce, for example, voice and music data have been widely used. In this IC recorder, the size of the device itself can be kept very compact by incorporating a generally non-detachable solid-state memory. On the other hand, on the other hand, in the IC recorder, the display provided on the device is limited to the minimum necessary display space, and for example, it is configured with a limited specification as hardware resources such as RAM. It is common. Therefore, when editing the data recorded in the IC recorder, it is necessary to connect to a network device such as a PC (personal computer) and use a relatively substantial user interface of the PC or the like. ing.

By the way, many applications operating on a PC generally have a so-called "Undo" function for canceling an edit made in the past. Even when the IC recorder is edited as described above, the "Undo" function is provided. In such a case, first, the state before editing is held on the PC side, and the data before editing is returned from the PC to the IC recorder side in response to "Undo" being executed for the subsequent editing. To be The use of such a method has an advantage that the "Undo" function can be realized even in a portable device having limited hardware resources (RAM or the like) as described above.

[0004]

However, in order to realize the "Undo" function in this way, for example, in order to deal with plural types of IC recorders, different file formats are used on the PC side. You need to keep the data from and interpret it. That is,
In this case, as an editing application on a PC, an API (Application Prog) that adjusts to the file format each time the number of compatible IC recorder models increases
ramming Interface) will have to be assembled. Furthermore, such an API may be, for example, P
It depends on the type of platform such as OS (Operating System) adopted on the C side, and if an application corresponding to a plurality of platforms is to be created, the number of API types will increase accordingly. . Therefore, depending on the conventional method for realizing the "Undo" function via the PC as described above, the cost for creating the editing application increases and the capacity of the editing application itself increases. Will result.

[0005]

In view of the above problems, the present invention is configured as a recording / reproducing apparatus as follows. That is, at least one or more files, first management data that is management data for managing the one or more files, and has management contents corresponding to the last update, and the first management data. Second management data having contents before being updated to the management data,
Is provided on a recording medium, and the currently valid management data is sent in response to an edit cancellation request corresponding to a cancel operation for editing the file involving the update of the management data. The control means for changing the first management data to the second management data is provided.

Further, according to the present invention, an editing method in the recording / reproducing apparatus is as follows. That is, at least one or more files, first management data that is management data for managing the one or more files, and has management contents corresponding to the last update, and the first management data. According to a recording procedure capable of recording the second management data having the contents before being updated to the management data on the recording medium, and a cancel operation for editing the file with the management data updated. In response to the edit cancellation request, a control procedure for changing the currently valid management data from the first management data to the second management data is executed.

Further, in the present invention, the program is configured as follows. Ie at least 1
The above files, the first management data that is management data for managing the above-mentioned one or more files, and has the contents corresponding to the last update, and the first management data.
The second management data having the contents before being updated to the management data of the recording medium, and a recording procedure capable of recording the second management data on a recording medium, and a cancel operation for editing the file targeting the updating of the management data. And a control procedure for changing the currently valid management data from the first management data to the second management data in response to the edit cancellation request. I chose

Further, in the present invention, the recording medium is set as follows. That is, at least one or more files, first management data that is management data for managing the one or more files, and has management contents corresponding to the last update, and the first management data. According to a recording procedure capable of recording the second management data having the contents before being updated to the management data on the recording medium, and a cancel operation for editing the file with the management data updated. In response to the edit cancellation request,
A control procedure for changing the currently valid management data from the first management data to the second management data and a program for causing the recording / reproducing apparatus to execute the control procedure are recorded.

By doing so, in the recording / reproducing apparatus, in addition to the first management data containing the management information currently validated, at least the management information immediately before being updated to this management information. Thus, the second management data including "" is held. Then, in response to the edit cancellation request, the currently valid management data is the first data.
The management data of No. 2 is changed to the above-mentioned second management data, thereby canceling the already executed editing process.

[0010]

FIG. 1 is a block diagram showing the configuration of a main part inside a recording / reproducing apparatus 1 as an embodiment of the present invention. The recording / reproducing apparatus 1 shown in this figure is provided with a storage memory 11 as a solid-state memory inside the apparatus as shown in the figure, and is a so-called integrated circuit (IC) capable of recording / reproducing audio data (including music data), for example.
it) It has a structure as a recorder.

First, in FIG. 1, the encoding / decoding section 3 encodes an analog audio signal input through the microphone 2 into audio data of a predetermined audio compression method, and as shown in the drawing, a controller 5 Will be supplied to. Further, the encoding / decoding unit 3 decodes the audio data supplied from the storage memory 11 via the controller 5 under the control of the controller 5, and outputs the decoded audio data as an analog audio signal via the speaker 4. To be done. The audio compression method in this case is, for example, ATRAC (Ad
aptive Transform Acoustic Cording) 1 and ATRAC
3 or a general audio compression method such as MP3 (MPEG Audio Layer 3) method may be adopted. Also in this case,
A headphone terminal may be provided in addition to the speaker 4.

The operation input section 7 is formed by a plurality of operation keys (not shown) provided outside the housing of the recording / reproducing apparatus 1. As a result, the user or the like can input an operation to the recording / reproducing apparatus 1. As the operation keys provided in the operation input unit 7, various operation keys necessary for recording / playback, operation keys for inputting a title, and operation keys necessary for editing are arranged. . Then, the operation input unit 7 supplies an operation signal according to the operated operation key to the controller 5.

The network interface 10 is a part for exchanging data with an external device. Record
The playback device 1 uses the network interface 10
Data communication can be performed with the PC 20, which will be described later, via the. In the case of the present embodiment, for example, a USB (Universal Serial Bus) interface may be adopted as the network interface 10.

The controller 5 includes the recording / reproducing apparatus 1
The overall control of each part of is performed. As shown in the figure, the controller 5 includes a ROM 12 and a RAM 13
Is provided. The ROM 12 stores programs for causing the controller 5 to execute various processes. In particular, in the case of the present embodiment, the ROM 12 stores a program for realizing an editing processing operation and an “Undo” processing operation, which will be described later. The RAM 13 appropriately stores data, programs, etc. required for the controller 5 to execute various processes.

Inside the controller 5, as a function realized by executing processing according to a program, a memory driver 6, an operation determining section 8,
A revision counter 9 is formed. The operation determining unit 8
The operation is determined based on the operation signal supplied from the operation input unit 7 or the command data received from the PC 20 via the network interface 10 as described later. Then, the operation determining section 8 supplies a control signal based on the operation thus determined to the memory driver 6.

The revision counter 9 is a TOC (Table Of Contents) described later as various data recorded in the storage memory 11 are edited.
Count the number of times the data in the area is updated. This count value is referred to by the memory driver 6 described below during the editing process.

The memory driver 6 stores the storage memory 11 based on the control signal supplied from the operation determining section 8.
Various data is read from and written to.
In the case of the present embodiment, the memory driver 6 is
When the editing process is performed on the data recorded in the storage memory 11, the revision counter 9
Based on the count value of
The operation of updating the value of the revision number recorded in the "TOC" area is performed. The operations during the editing process and the “Undo” process by the memory driver 6 will be described later.

The storage memory 11 manages voice data (including music data), additional data such as a title added to the voice data, and a reproduction order of these voice data. Information is stored. In the case of the present embodiment, a NAND flash memory is adopted as the storage memory 11.

The data structure in the storage memory 11 is schematically shown in FIG. First, as shown in the figure, the storage memory 11 is roughly divided into "CON
"TENTS DATA" (content data) area,
"INFOMATION DATA" (information data) area, "TOC1" area, "TOC"
Four areas of the "2" area are formed. Of these four areas, audio data as content data is recorded in the "CONTENTS DATA" area. Further, in the "INFOMATION DATA" area, character data such as a title added to the audio data is recorded as information data. Also,
As this information data, data other than character data such as image data may be recorded.

In the "TOC1" and "TOC2" areas, management information for managing the content data and the information data recorded as described above are recorded. Therefore, the management information recorded in these "TOC" areas is updated as the editing process is performed. This "TOC" area (TO
C1, TOC2), as shown in the figure, "CONTEN
"TS ORDER" (content order), "INF
Areas for storing the information of each of "ORIGATION MAP" (information map), "CONTENTS MAP" (content map), and "REVISION NUMBER" (revision number) are formed.

Information relating to the reproduction order of tracks is stored in the "CONTENTS ORDER" area. In this "CONTENTS ORDER" area, address information of content data and information data managed as data for one track is recorded. Then, a set of these address information is recorded from the head of this area according to the reproduction order of the tracks.

In the "INFORMATION MAP" area, information on the use / non-use of the address in the information data area is recorded. Further, in the "CONTENTS MAP" area, information on the use / non-use of the address in the content data area is recorded.

The "REVISION NUMBER" area is an area for recording a revision number. This revision number is T
Every time the information stored in the OC area is updated, it is updated by the memory driver 6 based on the count value of the revision counter 9. In addition, this revision number is used by the memory driver 6 even during the "Undo" process.
It will be described later.

In the case of the present embodiment, the "TOC" area formed as described above is the TOC1 area as shown in the figure.
And two areas of TOC2 are provided. By providing two “TOC” areas in this way, one of the “TOC” areas can be
The data management state before the editing process can always be maintained.

Here, the so-called I constructed as described above is used.
With respect to the recording / reproducing apparatus 1 as a C recorder, when editing the audio data recorded in the storage memory 11, it has been general practice to edit via a PC (personal computer). . Then, by using the PC in this way, it becomes possible to use the relatively substantial user interface of the PC. In the present embodiment, the PC shown in FIG. 3 below is used as the PC used when editing the audio data recorded in the recording / reproducing apparatus 1 in this way.

First, as shown in the block diagram of FIG. 3, the PC 20 used in this embodiment has a network interface 27 for exchanging data with the outside. And this network interface 27
Is connected to an internal data bus provided inside the PC 20 as shown. In the case of the present embodiment, a USB is also used as the network interface 27, which enables data communication with the recording / reproducing apparatus 1.

A ROM 25, a RAM 26, a CPU 28, and an input / output interface 21 are connected to the internal data bus as shown in the figure. The ROM 25 stores a program as firmware for causing the CPU 28 to execute various processes. The RAM 26 appropriately stores data, programs, etc. required for the CPU 28 to execute various processes. The CPU 28 executes various processes in accordance with programs stored in the ROM 25 described above or the hard disk drive 20 described later, for example.

A keyboard 22 and a mouse 23 are connected to the input / output interface 21, and the operation signals supplied from these are output to the CPU 28. Further, a display 24 is connected to the input / output interface 21 to enable image display.

A hard disk drive 20 as a recording medium is connected to the internal data bus.
The hard disk drive 20 and the CPU 28 described above
Is connected via the internal data bus,
The PU 28 can record or read data, programs, and the like for the hard disk drive 20.

In the case of the present embodiment, an editing application 20a is stored in the hard disk drive 20 as shown in the figure. The editing application 20a is composed of a program to be executed by the CPU 28 in order to perform various kinds of editing on the data recorded in the recording / reproducing apparatus 1 connected via the network interface 27. That is, in order for the PC 20 to execute the operation according to the present embodiment, the editing application 20a needs to be installed in advance.

In the editing system composed of the recording / reproducing apparatus 1 and the PC 20 configured as described above, the editing processing operation as shown in the following FIGS. 4 and 5 can be obtained. First, FIG. 4 shows a flowchart for explaining the operation of the editing system according to the present embodiment when the editing processing is on standby. It should be noted that in this figure, an operation is shown in which data that needs to be displayed on the PC 20 side for editing is transmitted from the recording / reproducing apparatus 1 to the PC 20 and is displayed on the display 24. . Also,
In this figure, it is assumed that the recording / reproducing apparatus 1 and the PC 20 are already connected via the network interfaces 10 and 27.

In FIG. 4, the CPU 28 of the PC 20 is
In step S101, the editing application 20
The start operation for activating a is monitored. Then, in step S101, for example, when the user performs a start operation via the keyboard 22 or the mouse 23, the editing application 20a is activated in step S102 as illustrated.

Thus, the editing application 20a
When is started, in step S103, the recording / reproducing apparatus 1 is notified of the start of the editing process. Then, when this processing is executed, it is monitored in step S104 whether or not the transmission data described below is received from the recording / reproducing apparatus 1.

The controller 5 of the recording / reproducing apparatus 1 monitors the start notification from the PC 20 in step S201. Then, when the start notification is given from the PC 20 as described above, the process proceeds to step S202.

In step S202, transmission data is created as information required on the PC 20 side during the editing process. Here, during such editing processing, the PC
On the side of the 20 side, as information to be displayed on the display 24 when the user or the like performs an editing operation, for example, the number of tracks of the audio data currently recorded in the storage memory 11 and the title given to each track. It is necessary for the recording / reproducing apparatus 1 side to transmit additional information such as. Therefore, in step S202, these pieces of information are created as transmission data.

In the case of the present embodiment, as the above-mentioned transmission data, not only the original file format but the necessary information extracted from the file is transmitted to the PC 20 side. That is, in the processing of this step S202, for example, only the necessary data from the information data area in which the additional information such as the title described in FIG. 2 is recorded, and only the address information of the information data from the content order area of the TOC area are recorded. To extract. Then, the extracted data is packaged and the transmission data is created. As described above, by packaging only the necessary data as the transmission data, P
On the C side, a GUI (Graphical User) for editing
Interface) can be displayed at high speed.

When the transmission data is created in step S202 in this manner, the created transmission data is sent to the PC 20 in step S203. When the transmission of this transmission data is completed, the following step S
At 204, the processing operation ends.

In step S104, the PC 2 which monitors the reception of the transmission data from the recording / reproducing apparatus 1
On the 0 side, when transmission data is received, step S105
Proceed to.

In step S105, the contents of the received transmission data are displayed on the display 24.
Here, as described above, as the transmission data,
The information (TOC) in the content order area itself is not transmitted, but only the address information written therein is transmitted in an extracted form. Therefore, in this case, depending on the transmission data transmitted from the recording / reproducing apparatus 1 as described above, the information regarding the reproduction order of the tracks is not particularly indicated. However, in the present embodiment, as described above with reference to FIG. 2, the address information is recorded in this content order area in a structure in which the reproduction tracks are arranged in order from the beginning of the area. And
When transmitting to the PC 20, the address information is transmitted in this reproduction order. That is, in this case, even if the reproduction order of the tracks is not particularly indicated as the transmission data, the PC 20 side executes the above-mentioned step S
By recognizing the data according to the reception order of the transmission data at 104, it is possible to accurately recognize the order of the tracks and the correspondence between the tracks and the additional information. By performing the display according to this recognition, the order of the tracks and the correspondence between the tracks and the additional information can be accurately displayed on the display 24 in step S105. in this way,
When the content of the transmission data is displayed on the display 24 in step S105, the processing operation is ended in subsequent step S106.

FIG. 5 shows a flow chart for explaining the operation at the time of editing processing in the editing system of this embodiment. In this figure, the PC 20
The operation until the information in the TOC area is updated on the recording / reproducing apparatus 1 side is shown according to the edited content. Further, in this figure, the recording / reproducing apparatus 1 and the PC 20 are already connected via the network interfaces 10 and 27, and the PC 20
In, it is assumed that the editing application 20a is activated.

First, the CPU 28 of the PC 20 determines in step S301 shown in the drawing whether or not an editing end operation for ending the editing process has been performed by the user or the like.
In this case, for example, for the GUI for editing end operation displayed on the display 24, for example, the keyboard 2
2. It may be determined whether or not the operation via the mouse 23 is performed. Then, if the editing end operation is not performed, the process proceeds to step S302. It should be noted that the processing operation when the editing end operation is performed in step S301 will be described later.

In step S302, the editing operation is performed by the user or the like. Then, according to the operation performed by the user or the like, various processing operations corresponding to the user's operation, such as a process of changing the display on the display 24, may be performed.

In the following step S303, it is determined whether or not there is an edit confirming operation for confirming the contents of the editing operation performed in the above step S302. If there is no edit confirmation operation, step S3 described above
If there is an edit confirmation operation, the process proceeds to step S304.

In step S304, command data corresponding to the confirmed editing content is created. For example,
If the editing operation performed in step S302 is an operation of deleting a certain track, command data for instructing the recording / reproducing apparatus 1 to delete the track is created. It Then, the command data created in this way is added to the subsequent step S30.
In 5, the data is transmitted to the recording / reproducing apparatus 1.

In step S401, the controller 5 of the recording / reproducing apparatus 1 determines whether or not command data has been received from the PC 20 side. And P
When the command data from the C20 side is received, the process proceeds to step S402. If command data is not received from the PC 20 side in step S401, the process proceeds to step S407 described later.

In step S402, the value of the revision number (Rev.No) attached to TOC1 and TOC2 in the storage memory 11 is recognized. Then, in the following step S403, first, based on the recognition in the above step S402, the TOC with the smaller revision number value is selected, and the data recorded in this TOC is based on the command data received in the above step S401. And update it.

In the following step S404, the controller 5 (memory driver 6) sets the revision number of the TOC updated as described above to the revision counter 9
Update based on the count value of. Here, as described with reference to FIG. 1, the revision counter 9 counts each time the information recorded in the TOC is updated. Therefore, the revision number updated in response to the content of the TOC being updated as described above is always one larger than the revision number attached to the TOC that has not been updated. To be done. That is, the operation of incrementing the revision number attached to the updated TOC can be obtained by the process of step S404.

Then, the TOC of the one thus updated
When the value of the revision number attached to is incremented, in the subsequent step S405, the TOC having the larger revision number value is validated.
That is, depending on the process of step S405, the process of step S404 is provided.
The TOC updated in step S403 is always validated.

When the information recorded in the updated TOC is validated, the PC 20 is notified in step S406 that the TOC has been updated based on the received command data. To notify the end of the update.

On the PC 20 side, the presence or absence of this update end notification is monitored in step S306 shown in the figure. Then, when this update end notification is given, step S3
In step 01, it is determined whether or not there is an edit end operation by the user or the like.

If it is determined in step S301 that the edit end operation has not been performed, step S301 is executed again.
In 302, the user or the like is allowed to perform an editing operation. If it is determined that the editing end operation has been performed, the process proceeds to step S307.

In step S307, in response to the editing end operation determined in step S301, an edit end notification for notifying the end of the editing process is sent to the recording / reproducing apparatus 1. Then, when this edit end notification is issued, the edit processing shown in this figure ends in step S308.

On the recording / reproducing apparatus 1 side, it is determined in step S407 whether or not there is this edit end notification. Here, in step S407, if there is no edit end notification from the PC 20 side, the process proceeds to step S401 as shown in the figure, and it is monitored whether command data is received. And this step S40
If the command data was not received in step 1,
In step S407, the presence / absence of the edit end notification is determined again. That is, this step S40
7 and the processing of S401 form a loop that waits for either an end notification or command data reception from the PC 20 side.

On the other hand, in step S407, P
When the edit end notification from C20 is determined, the edit process ends in step S408 as illustrated.

As described above, in the editing system according to the present embodiment, first, as described in FIG. 4, the recording / reproducing apparatus 1 sends the TOC area to the PC 20 side as a process during the standby of the editing process. Instead of transmitting the whole, only the data necessary for display on the PC 20 side is extracted and transmitted. Then, during the editing process, as described with reference to FIG. 5, the PC 20 side only creates command data according to the user operation, and the command data is transmitted to the recording / reproducing apparatus 1 side to perform recording / recording. The TOC update process is performed on the reproduction device 1 side.

Here, in the editing system according to the present embodiment, the specific contents of the editing process described so far are, for example, “editing of audio data recorded in the recording / reproducing apparatus 1”, “track editing”. Sort order ",
It is possible to "divide", "join", "add", and "delete". When these various editing operations are performed by the user or the like, the recording / reproducing apparatus 1 side performs as shown in FIGS. 6 to 10 below as the editing processing operation described in FIG. 5 is performed. Then, the operation of updating the data in the TOC area is performed.

First, FIG. 6 is a diagram conceptually illustrating an update operation when a track “arrangement order” operation is performed as an edit to the audio data recorded in the storage memory 11. In the following FIGS. 7 to 10 including FIG. 6, as a simplified example, eight recording areas of addresses 0 to 7 are formed in the information data area, and the content data area includes eight recording areas. It is assumed that 16 recording areas 0 to 15 are formed.

First, in this figure, as a state before editing,
It is assumed that the management information of TOC1 shown in the figure is valid. That is, in this case, as shown in the content order area of TOC 1, first, track 1
As the data corresponding to, the content data recorded at addresses “0” and “3” of the content data area and the information data recorded at address “4” of the information area are managed as shown in the figure. ing. Also, for track 2,
Content data at addresses "1" and "2" in the content data area and information data at address "0" in the information area are managed. Further, as the track 3, the content data at the address “4” of the content data area and the information data at the address “2” of the information area are managed, and as the track 4, the address “6” of the content data area is managed. And "7"
Content data and information data at address "3" in the information area are managed. Note that, for convenience of description, the area in which each data is recorded is indicated by one address as the address information recorded in the content order, but the address information is actually the data recording. It is indicated by a set of a start address and a recording end address.

By managing each data as described above, the use / non-use information indicated by each of the information map and the content map becomes as illustrated. Further, the value of the revision number in this case is attached with "n" as shown in the figure.

Here, for such a state, the PC 20
In this case, it is assumed that, for example, an operation of "changing the arrangement order" for exchanging the reproduction order of the tracks 1 and 3 is performed by an operation of the user or the like. Then, in response to this editing operation, the command data based on this operation is transmitted from the PC 20 side to the recording / reproducing apparatus 1 as described in FIG. Then, the controller 5 (memory driver 6) of the recording / reproducing apparatus 1 uses the T command based on this command data.
Processing for updating information in the OC area is performed. At this time, since the TOC1 is validated at the time when this editing operation is being performed, the TOC updating process here is performed on the TOC2. That is, in this case, as the TOC2 information as shown in the figure, T
In the content order shown in OC1, a process of updating so that the order of the entries of the track (TR) 1 and the track (TR) 3 is exchanged is performed.

When the information in the TOC area is updated as described above, the memory driver 6 changes the value of the revision number to the count value of the revision counter 9 as described in step S404 of FIG. Based on this, the operation for updating is obtained. Therefore, the value of the revision number of this TOC2 is updated to "n + 1" as shown in the figure. And
In this way, the value of the revision number of TOC2 is T
"N" which is one higher than the value of the revision number of OC1
+1 ”, the memory driver 6 is
By the process of step S405 of FIG. 5, the setting is made to validate the TOC with the larger revision number value.
As a result, the information written in the TOC 2 updated this time becomes valid, and as a result, in the recording / reproducing apparatus 1, the editing of the “arrangement order” according to the user operation is completed. Becomes

Next, FIG. 7 conceptually shows the updating operation when the track "division" editing operation is performed. Also in FIG. 7, the information recorded in the TOC1 is valid as the state before editing, and the information of the TOC1 shown in this figure is the same as the TOC1 in FIG. 6 as shown in the figure. Information is recorded. In other words, in FIG. 7, in comparison with the state before editing similar to FIG.
It shows a case where an editing operation is performed by a user or the like.

In this figure, it is assumed that the user operates the PC 20 to divide the track 4 into two tracks as shown in the figure. Then, in this case as well, as in the case of FIG.
TOC2 based on the command data sent from the 0 side
Process to update the information of. Then, depending on the update process in this case, the information of the TOC 2 is the data recorded at the address 6 of the content data area as the data of the track 4, and the content data recorded at the address 7 is the data of the track 5. Updated to manage as.

Here, the information data does not exist in the track 5 newly generated by dividing the track as described above. On the other hand, it is possible that the information data of the track 5 does not exist, but in the case of the present embodiment, the information is divided as the information data of the track newly generated by the division. It is made to copy the data of the previous track.

Therefore, when the tracks are divided as described above, as shown in the figure, first, the data (address 3) managed as the track 4 in the information data area is, for example, the first data. A copy is made to address 1 which is the first free address. Then, as shown in the figure, the address 1 is written in the area of the track 5 of the content order, and the information data copied from the track 4 is managed as the data of the track 5.

When the TOC2 is updated in this manner, the value of the revision number of the TOC2 is incremented to "n + 1" thereafter, as in the case of FIG.
The operation for validating the information recorded in 2 will be obtained. As a result, in the recording / reproducing apparatus 1, the editing process of the “division” of the track according to the user operation is completed.

FIG. 8 conceptually shows the update operation when the track "join" edit operation is performed. FIG. 8 also shows a case where an editing operation is performed by the user or the like in the state shown in TOC1 of FIG.

In this figure, it is assumed that a user or the like operates the PC 20 to perform an operation of connecting the tracks 3 and 4 as shown in the figure. Then, also in this case, as in the case of FIG. 6, the memory driver 6 performs a process of updating the information of the TOC 2 based on the command data transmitted from the PC 20 side. That is, in this case, TOC
1, the data of addresses 4, 6, and 7 in the content data area and the data of addresses 2 and 3 in the information data area, which were managed as tracks 3 and 4, are managed as one track of track 3. The operation of updating TOC2 is obtained.

In this case, the information data of the track 3 in the TOC1 is adopted as the information data in the track 3 newly generated in the TOC2. And along with this, TOC1
The data of the address 3 managed as the information data of the track 4 in No. 4 does not belong to any track in the TOC 2. That is, address 3 of this information data area
Is treated as erased. However, in this embodiment, in this case, the data of the address 3 is not actually erased, but the use / non-use information in the information map in the TOC 2 is changed as shown in FIG.
This data is retained only by changing the address 3 to be "vacant". In this way, even if the data that is no longer managed on the TOC due to editing is left, for example, when this data needs to be written here as later editing is performed. It is enough to erase it for the first time,
There is no need to erase immediately here.

When the TOC2 is updated in this manner, the value of the revision number of the TOC2 is incremented to "n + 1" thereafter, as in the case of FIG.
The operation for validating the information recorded in 2 will be obtained. As a result, in the recording / reproducing apparatus 1, the editing process of the track "coupling" in accordance with the user operation is completed.

FIG. 9 conceptually shows the update operation when the "add" edit operation of the track is performed. In FIG. 9, audio data recorded in the hard disk of the PC 20, for example, is additionally recorded in the storage memory 11 of the recording / reproducing apparatus 1 as compared with the state before editing shown in TOC 1 of FIG. It shows a case where an edit operation is performed.

First, when the track "addition" editing operation is performed in this manner, the additional content data and the information data corresponding to this content data are transmitted from the PC 20 to the recording / reproducing apparatus 1. . Along with this, the PC 20 transmits command data instructing addition of these data. Along with this, the memory driver 6 performs an operation of writing the content data and the information data transmitted in this way into their corresponding areas. At this time, these data are written from the top free address of each area as shown in the figure.
And at the same time, the memory driver 6 causes the PC 20
The information of the TOC 2 is updated based on the command data transmitted from the side. That is, in this case, as shown in the figure, the operation of adding the newly written information data area address 1 and the contents data area addresses 5, 8 and 9 to the content order entry as the track 5 Is obtained.

Further, as new data is written in the information data area and the content data area as described above, the information map of the TOC 2 and the information of the use / non-use of the content map are , Will be updated as shown.

When the TOC2 is updated in this way, the value of the revision number attached to the TOC2 is incremented to "n + 1", and the information recorded in the TOC2 is validated, as in the case of FIG. The action to do is obtained. As a result, in the recording / reproducing apparatus 1, the track "addition" editing process according to the user operation is completed.

FIG. 10 conceptually shows the update operation when the track "delete" edit operation is performed. 10 also shows a case where an editing operation is performed by the user or the like in the state shown in TOC1 of FIG.

In this figure, it is assumed that an editing operation for deleting the track 1 is performed as shown in the figure by an operation of the user or the like on the PC 20. Then, also in this case, as in the case of FIG. 6, the memory driver 6 performs a process of updating the information of the TOC 2 based on the command data transmitted from the PC 20 side. That is, the memory driver 6 uses the TOC1
In TO, information of TOC2 is updated so that each data managed as track 1 is deleted.

Here, in the present embodiment, even when the track is deleted as described above, the data recorded in the information data area and the content data area are not actually erased. ing. Then, instead, as shown in the figure, by setting the use / non-use information of the information map and the content map to “empty”,
It is intended to indicate that these addresses are not used (writable) for writing accompanying later editing.

When the TOC2 is updated in this way, the value of the revision number of the TOC2 is incremented to "n + 1" thereafter, as in the case of FIG.
The operation for validating the information recorded in 2 will be obtained. As a result, in the recording / reproducing apparatus 1, the track "deletion" editing process according to the user operation is completed.

As described above, in the present embodiment, when the editing operation is performed by the user and the content is confirmed, the revision number of the smaller one is determined by the process of step S403 in FIG. The operation of updating the TOC is obtained. Therefore, when the user edits again after each of the above-described editing processes of FIGS. 6 to 10, the revision number “n” of the TOC1 and the revision of the TOC2 shown in each diagram are shown. By comparing the numbers "n + 1", this time the TOC
1 will be updated. In this case, it goes without saying that the contents of the management information in the TOC 2 (previously edited contents) are maintained as they are. Further, in this case, the value of the revision number of the updated TOC1 is incremented to become "n + 2", which has already been described with reference to FIG.
It is clear from the processing of step S404 of.

Here, "arrangement order", "division", "combination", and "tracking" of the tracks described in FIGS.
After each of the "add" and "delete" edit processing, "Und" for canceling these edit operations
When the “o” operation is performed, the operation shown in FIG. 11 is obtained in the editing system of the present embodiment. Note that, also in FIG. 11, it is assumed that the PC 20 and the recording / reproducing apparatus 1 are connected via the network interfaces 10 and 27, respectively, and the editing application 20a is activated in the PC 20.

First, in FIG. 11, C of the PC 20
In step S501, the PU 28 monitors the "Undo" operation by the user or the like. In this case, the CPU 28
Is displayed on the display 24, for example.
It is monitored whether or not a user or the like has operated the “o” operation GUI via the keyboard 22 or the mouse 23. Then, in this step S501, "U
If there is an "ndo" operation, then in step S502, "Undo" for instructing the "Undo" process.
Command data is transmitted to the recording / reproducing apparatus 1.

In the recording / reproducing apparatus 1, the controller 5 monitors the reception of the "Undo" command data in step S601. When this "Undo" command data is received, the controller 5 first recognizes the revision number values assigned to TOC1 and TOC2 in step S602, and then in step S603, the one with the smaller revision number value. The TOC is validated. Here, according to the description of FIGS. 6 to 10, the TOC with the smaller revision number value always holds the management information in the state before editing. That is, in this case, if the TOC with the smaller revision number value is validated by the processing in step S603 as described above, the management information can be returned to the state before editing ("Undo"). It will be like this.

In the following step S604, the process of incrementing the value of the revision number of the TOC validated in step S603 is performed. By this processing, the value of the revision number attached to the TOC (edited management information) that has not been validated in step S603 is reduced. Then, depending on this, for example, when the "Undo" operation for canceling the contents (management information before editing) of the TOC validated by the "Undo" operation later is performed,
The TOC that has not been activated is the above-mentioned step S
It becomes effective by the processing of 603. That is, by performing the process of step S604, the edited content canceled by the "Undo" operation
It will be able to be activated again. In this case, in step S604, the revision number of the TOC validated as described above is incremented, and at the same time, the count value of the revision counter 9 is incremented. Then, by doing so, the consistency between the count value of the revision counter 9 and the value of the revision number attached to the TOC that is currently valid is ensured.

When the processing in this step S604 is executed, "Undo" is displayed in the following step S605.
A process of notifying the PC 20 side of the end of the process is performed. Then, when this process is executed, as shown in FIG.
At 606, the processing operation ends.

On the PC 20 side, the end notification of the "Undo" process from the recording / reproducing apparatus 1 is notified in step S.
Monitoring at 503. Then, when this end notification is given, the processing operation is ended in step S504 as illustrated.

When the "Undo" process as shown in FIG. 11 is performed after the editing process previously described with reference to FIGS. 6 to 10, the TOC is updated on the recording / reproducing apparatus 1 side. The processing operations will be described below.

First, the case where the "Undo" process is performed for the "arrangement order change" edit in FIG. 6 will be described. In the case of FIG. 6, the revision number “n” assigned to TOC1 and the revision number “n assigned to TOC2 may depend on the processing of step S603 of FIG.
+1 ”is compared, and TOC1 having a smaller revision number value is activated. Then, when the TOC1 is activated in this way, step S shown in FIG.
By the processing of 604, the operation of incrementing the value of the revision number of TOC1 to "n + 2" can be obtained.

Similarly, in the case of "division" in FIG.
Is enabled and the operation of incrementing the value of this revision number of TOC1 can be obtained. In addition,
In this case, the data of the address 1 of the information data area copied at the time of updating the TOC 2 described above with reference to FIG. 7 is not actually erased. In other words, in this case, even if the data of the address 1 is not actually erased, the address map 1 is “empty” as shown in the diagram in the information map in the validated TOC 1 before the editing. The state will be restored. And address 1 like this
By not actually erasing the data of No. 2, it becomes possible to cope with, for example, the case where the "Undo" process for canceling the "Undo" process here is performed.

Subsequently, in the case of "combination" shown in FIG.
The operation of validating the TOC1 and incrementing the value of the revision number of the TOC1 is obtained. And
In this case, as described above, the data at address 3 in the information data area which has been erased at the time of updating TOC2 is not actually erased, so that only TOC1 is enabled as described above. Will allow you to restore the state before editing.

Even in the case of "addition" in FIG. 9, the TOC is
The operation of validating 1 and incrementing the value of the revision number of TOC1 is obtained. Also in this case, the data added to the information data area (address 1) and the data added to the content data area (addresses 5, 8, 9) are the same as in the case of “division” in FIG. Not actually erased. In other words, even in this case, it is not necessary to immediately erase these data as long as the information in the validated information map has been returned to the state before editing.

Even in the case of "deletion" in FIG. 10, the TO
The operation of activating C1 and incrementing the value of the revision number of this TOC1 is obtained. Then, in this case, as described above with reference to FIG. 10, the data at address 4 in the information data area and the data at addresses 0 and 3 in the content data area, which are erased when the TOC 2 is updated, are actually erased. Since it is left as it is, the state before editing can be restored only by activating the TOC 1 as described above.

As described above, in this embodiment, the TOC is used as an area for recording the management information of the audio data recorded in the storage memory 11 of the recording / reproducing apparatus 1.
Two TOCs, 1 and TOC2, are provided.
As a result, one TOC can hold the management information currently validated, and the other TOC can hold the management information validated immediately before the editing. ing. In this way, the recording / reproducing apparatus 1
Since the state before editing and the state after editing can be held at the same time on the PC side, on the PC20 side,
It is not necessary to maintain the management state before editing to perform the "Undo" process. Therefore, the editing application 20a installed in the PC 20 does not need to have an API for interpreting the file system on the recording / reproducing apparatus 1 side as in the conventional case.

Further, as described above, by retaining the pre-editing state and the post-editing state, it is possible to cancel the already executed "Undo" processing. Becomes For example, when the case of FIG. 6 is described as an example, in this case, “Un
Assuming that the TOC1 is enabled by the "do" process, when the "Undo" is performed again from this state, the TOC2 that is maintained as the management state after the editing process is illustrated. Will be able to be activated. That is, as a result, the “Und
"Undo" processing (management status before editing processing → management status after editing processing is enabled) for "o" processing (management status after editing processing → enabling management status before editing processing) It will be.

In this embodiment, the PC 20
The case where the “Undo” process is performed by the operation of the user or the like via the has been described as an example.
With the configuration for “do” processing, it is possible to perform the “Undo” processing by the recording / reproducing apparatus 1 alone. That is, as described above, since the recording / reproducing apparatus 1 side can maintain the management state before editing, the "Undo" process is performed even by the recording / reproducing apparatus 1 alone having few hardware resources. You will be able to get things done. In this case, “Und described in FIG.
As the “o” processing operation, the PC2 is executed in the processing of step S601.
What was monitored for the "Undo" command data from 0 may be changed to monitor the "Undo" operation signal from the operation input unit 7. In this case, it goes without saying that the processing of the “Undo” processing end notification in step S605 is omitted.

Further, as can be understood from the above description, in the present embodiment, the management information as the invalidated post-editing state is retained as the "Undo" process is performed. To be done. However, according to the present invention, the management information invalidated by the “Undo” process may be deleted. That is, to explain this with reference to the case of FIG. 6, for example, in response to the "Undo" process being performed, first, the TOC2 that is enabled as the last edited state is stored. The management information currently set is deleted. And the remaining TOC
The management information stored in No. 1 is validated. In this way, the method of deleting the management information stored in the TOC that is invalidated by the "Undo" process can simplify the "Undo" process itself and also once the editing process is executed. Only "Und
It can be suitably applied when it is desired to permit "o".

Further, in this embodiment, two "TOC" s, TOC1 and TOC2, are stored in the storage memory 11.
The case where an area is provided was taken as an example, but this "TO
The number of “C” areas may be three or more.

For example, when three "TOC" areas are provided, the editing process on the recording / reproducing apparatus 1 side is as shown in FIG.
In the processing of step S403 shown in
Among them, the TOC having the smallest revision number value is updated. Similarly, as the processing of step S405, the TOC having the largest revision number value among these three TOCs is validated. In this case, if you execute the above editing process,
In the entire "TOC" area, the editing contents of the past three times can always be held simultaneously. Then, as the "Undo" process in this case, the TOC having the second largest revision number is validated in the processes of steps S602 and S603 shown in FIG.
By doing so, it becomes possible to restore the management state immediately before the last edit. In this case, since the edited contents for the past three times can be held in the entire "TOC" area as described above, for example, further "Undo"
When the operation is performed, by enabling the TOC having the smallest revision number value, it becomes possible to restore the management state immediately before the management state restored as described above.

Further, in the present embodiment, the case where the recording / reproducing apparatus 1 is provided with the microphone 2 and is configured as a so-called IC recorder capable of recording, for example, conversation contents during a conference is taken as an example. However, in addition to this, the recording / reproducing apparatus 1 of the present embodiment has a built-in non-detachable solid-state memory such as a so-called memory player configured to mainly reproduce music data downloaded from an external device. However, the device is not limited to this as long as it is a device capable of recording and reproducing various data.

[0099]

As described above, in the present invention, in the recording / reproducing apparatus, in addition to the first management data including the management information that is currently valid, at least the management information immediately before being updated to this management information. It holds the second management data including the. Then, in response to the edit cancellation request by the user operation, the management data to be validated is changed from the first management data to the second management data, whereby the editing process already executed can be canceled. I am able to do it.

As described above, the recording / reproducing apparatus holds the management information that is currently valid and the management information immediately before being updated to this management information at the same time. When the "Undo" process is performed, it is not necessary for the PC side to retain the management state before editing. Therefore, for example, as an editing application installed in an external device such as a PC, it is not necessary to mount an API for interpreting the file system on the recording / reproducing apparatus side as in the related art.

By eliminating the need to implement the API for interpreting the file system on the recording / reproducing apparatus side, the editing application can be easily developed, and as a result, the editing application is manufactured. It is possible to reduce the cost. Further, as a result, even when a plurality of types of recording / reproducing devices are to be supported, it is not necessary to compose an API according to the file system of each device, and cost reduction can be achieved also in this respect.

Further, according to the present invention, if the recording / reproducing apparatus always holds the state before editing and the state after editing at the same time, cancellation (Undo) of already executed "Undo" processing is also performed. It becomes possible.

Further, as described above, the management information currently validated on the recording / reproducing apparatus side and the management information immediately before being updated to this management information are held at the same time. It is possible to perform the "Undo" process even with the device alone. In this case, since communication with an external device can be eliminated in the editing process, it is possible to perform "U" by high-speed operation under the condition of limited hardware resources (for example, RAM) on the recording / reproducing apparatus side.
It becomes possible to perform the "ndo" operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main part inside a recording / reproducing apparatus as an embodiment of the present invention.

FIG. 2 is a diagram schematically showing a data structure in a storage memory provided inside the recording / reproducing apparatus.

FIG. 3 is a block diagram showing a configuration of a main part inside an external device as an embodiment.

FIG. 4 is a flowchart for explaining an editing processing operation obtained in the editing system of the embodiment.

FIG. 5 is a flowchart for explaining an editing processing operation obtained in the editing system of the embodiment.

FIG. 6 is a diagram conceptually explaining an editing processing operation obtained in the editing system.

FIG. 7 is a diagram conceptually explaining an editing processing operation obtained in the editing system.

FIG. 8 is a diagram conceptually explaining an editing processing operation obtained in the editing system.

FIG. 9 is a diagram conceptually explaining an editing processing operation obtained in the editing system.

FIG. 10 is a diagram conceptually explaining an editing processing operation obtained in the editing system.

FIG. 11 shows “Und obtained in the editing system.
9 is a flowchart for explaining an “o” processing operation.

[Explanation of symbols]

1 recording / reproducing apparatus, 2 microphones, 3 encoding / decoding section, 4 speakers, 5 controller, 6
Memory driver, 7 operation input section, 8 operation determination section,
9 revision counter, 10 network interface, 11 storage memory, 12 ROM, 1
3 RAM, 20 PC (personal computer),
20 hard disk drive, 20a editing application, 21 input / output interface, 22 keyboard, 23 mouse, 24 display, 25 R
OM, 26 RAM, 27 network interface, 28 CPU

Claims (9)

[Claims] 1. At least one or more files, first management data that is management data for managing the one or more files, and has management contents corresponding to the last update, and A recording unit capable of recording the second management data having the contents before being updated to the first management data on a recording medium, and a cancel operation for editing the file with the management data updated. In response to the edit cancellation request according to the above, the control data is changed so that the currently valid management data is changed from the first management data to the second management data. Recording / playback device. 2. A counting means for counting the number of updates of the management data is further provided, and the recording means records the count value counted by the counting means by adding the count value to the updated management data. In response to the edit cancellation request, the control means determines that the current validity is based on the result of comparing the magnitudes of the count values attached to the first management data and the second management data. The recording / reproducing apparatus according to claim 1, wherein the management data is changed from the first management data to the second management data. 3. A counting means for counting the number of updates of the management data is further provided, and the recording means records the count value counted by the counting means by attaching it to the updated management data. In response to the edit cancellation request, the control means determines that the current validity is based on the result of comparing the magnitudes of the count values attached to the first management data and the second management data. The management data to be used is changed from the first management data to the second management data, and the count value attached to the valid management data is incremented. The recording / reproducing apparatus according to claim 1. 4. The control means, in response to the edit cancellation request, erases the first management data, thereby changing the remaining second management data to data that is currently valid. It is comprised, The recording / reproducing apparatus of Claim 1 characterized by the above-mentioned. 5. The apparatus further comprises receiving means capable of receiving an edit cancellation request from an external device, and the control means is validated at present in response to the edit cancellation request from the external device via the receiving means. The recording / reproducing apparatus according to claim 1, wherein the management data is changed from the first management data to the second management data. 6. The recording means updates the management data in accordance with an edit result of any one of a change of the arrangement order of the files, a combination of the files, a division of the files, a deletion of the files, and an addition of the files. The recording / reproducing apparatus according to claim 1, wherein 7. At least one or more files, first management data which is management data for managing the one or more files, and has management contents corresponding to the last update, and A recording procedure in which the second management data having the contents before being updated to the first management data can be recorded on a recording medium, and a cancel operation for editing the file with the management data updated. And a control procedure for changing the currently valid management data from the first management data to the second management data in response to the edit cancellation request according to And how to edit. 8. At least one or more files, and first management data that is management data for managing the one or more files and has a content corresponding to the last update, and A recording procedure in which the second management data having the contents before being updated to the first management data can be recorded on a recording medium, and a cancel operation for editing the file with the management data updated. To the recording / reproducing apparatus, in response to the edit cancellation request corresponding to the above, a control procedure for changing the currently valid management data from the first management data to the second management data. A program characterized by being executed. 9. At least one or more files, and first management data which is management data for managing the one or more files and has contents corresponding to the last update, and A recording procedure in which the second management data having the contents before being updated to the first management data can be recorded on a recording medium, and a cancel operation for editing the file with the management data updated. To the recording / reproducing apparatus, in response to the edit cancellation request corresponding to the above, a control procedure for changing the currently valid management data from the first management data to the second management data. A recording medium recording a program to be executed.