JP2002288966A - File management method, program of file management method, recording medium in which program of file management method is recorded, and file management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and surely select a desired file when a volume of files are selected and processes by a user's operation, for example, to an on-vehicle device to reproduce an optical disk created by a personal computer, etc., regarding a file management method, a program of the file management method, a recording medium in which the program of the file management method is recorded and the file management device. SOLUTION: Whether or not an accessing object is switched to files allocated to different groups is decided and informed to the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file management method, a file management method program, a recording medium storing the file management method program, and a file management apparatus. Can be applied. The present invention determines whether or not an access target is switched to a file assigned to a different group and notifies the user of the change. And make sure that you can choose.

[0002]

2. Description of the Related Art Conventionally, an audio device mounted on a vehicle can reproduce an optical disk of a compact disk (CD).

On the other hand, in a personal computer, a file of a desired music content can be acquired and held by accessing a server that distributes the music content. Files to CD-R (comp
act disc Recordable), CD-RW (compact discRe
writable) so that it can be recorded.

[0004] When a music content file is recorded on a CD-R or CD-RW by a personal computer as described above, the music content is often recorded using a data-compressed file.
-R can record a large number of music content files. In addition, each file is grouped and recorded by a folder in which a genre name, an artist name, and the like are set, so that a desired music content file can be easily and reliably selected in a personal computer operation. .

[0005]

By the way, even in a vehicle-mounted audio device, if it is possible to reproduce various data-compressed music content files used in such a personal computer, a CD-R recorded by the personal computer, It is considered that CD-RW can be enjoyed in the vehicle.

In this case, the in-vehicle apparatus does not have a display means large enough to display the hierarchical structure of the folder like a personal computer, so that the grouping set by the personal computer or the like is ignored. It is considered that by sequentially reproducing the reproducible files recorded on the CD-R and CD-RW, the CD-R and CD-RW recorded by the personal computer can be enjoyed in the vehicle.

However, even when a compact disc or the like is being reproduced, the user operates the operation device to sequentially select and select the music to be reproduced, while recording the music content in such a data-compressed format. It is conceivable that the number of tunes to be reproduced in a CD-R or CD-RW is significantly increased. In the playback of a compact disc, music of one genre and one artist is recorded, while CD-R,
In a CD-RW, it is considered that songs of various genres and artists are grouped and recorded by editing by a user.

[0008] As in the case of playing back a compact disc, simply playing back the music to be played back by simply operating the operating element may cause the user to be unable to easily and reliably select the desired content. Especially when driving, when you need to focus on driving, if the driver's attention is focused on selecting content,
There is a risk of impairing safety.

The present invention has been made in consideration of the above points, and a file management method capable of easily and reliably selecting a desired file when a large number of files are selected and processed by a user operation. And a file management method, a recording medium storing the file management method program, and a file management apparatus.

[0010]

According to the first aspect of the present invention, in order to solve the above-mentioned problem, a file to be newly accessed by a switching control step is applied to a file management method. The method includes a group determination step of determining whether a file belongs to the same group as a certain file, and a notification step of notifying a user of a determination result by the group determination step.

In the invention according to claim 7, the present invention is applied to a program for a file management method, and the file management method is such that a file to be newly accessed by a switching control step is different from a file to be accessed immediately before. The method includes a group determining step of determining whether or not the files belong to the same group, and a notification step of notifying a user of a determination result by the group determining step.

In the invention according to claim 8, the program is applied to a recording medium recording a program of a file management method,
The file management method includes a group determination step of determining whether a file to be newly accessed by the switching control step belongs to the same group as the file to be accessed immediately before, and a group determination step. And a notifying step of notifying the user of the determination result by the step.

According to a ninth aspect of the present invention, the present invention is applied to a file management apparatus, and the switching control means determines whether a file to be newly accessed belongs to the same group as a file to be accessed immediately before. And a notifying means for notifying the user of the determination result by the group determining means.

According to the first aspect of the present invention, the file to be newly accessed by the switching control step is a file belonging to the same group as the file to be accessed immediately before, which is applied to the file management method. Access to files of different groups, for example, by grouping set by the user, such as a folder, by having a group determination step of determining whether or not, and a notification step of notifying a user of a determination result by the group determination step. When the target is switched, the user can be notified. Thus, when a large number of files are selected and processed by the user's operation, this notification can be used as a guide, and a desired file can be selected simply and reliably.

According to the present invention, when a large number of files are selected and processed by a user operation, a desired file can be easily and reliably selected. And a recording medium on which the program of the file management method is recorded.

According to a ninth aspect of the present invention, the switching control means determines whether a file to be newly accessed is a file belonging to the same group as a file to be accessed immediately before, and a group determining means. By having a notifying means for notifying the user of the determination result by the group determining means, for example, when switching the access target to a file of a different group by grouping set by the user such as a folder, the user is notified. Can be. Thus, when a large number of files are selected and processed by the user's operation, this notification can be used as a guide, and a desired file can be selected simply and reliably.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(1) Configuration of the First Embodiment FIG. 2 is a block diagram showing a car audio device according to an embodiment of the present invention. This car audio device 1
Is designed so that music content on FM broadcasts, tape cassettes, and optical disks can be previewed.

That is, in the car audio apparatus 1, the tuner section (TU section) 2 receives a desired broadcast wave under the control of the controller 3 and outputs an audio signal. The cassette unit 4 reproduces and outputs an audio signal from the tape cassette under the control of the controller 3 in the same manner. The optical disk unit 5 reproduces and outputs an audio signal from an optical disk of CD, CD-R, or CD-RW under the control of the controller 3 in the same manner.

Under the control of the controller 3, the audio signal processing circuit 6 corrects and amplifies the sound quality and volume of the audio signals output from the tuner 2, the cassette 4 and the optical disk 5, and drives the speaker 7. I do. Thus, the car audio device 1 can listen to various music contents.

In the optical disk section 5, the spindle motor 11 drives the optical disk 12 loaded by the user at a predetermined rotational speed under the control of the servo circuit 13.
The servo circuit 13 executes processing of spindle control, which is the rotation control of the spindle motor, and seeks the optical pickup 14 to perform tracking control and focus control.

The optical pickup 14 irradiates the optical disk 12 with a laser beam, receives return light, and outputs a result of the light reception. Thus, the optical pickup 14 performs signal processing on the light receiving result by a signal processing circuit (not shown) to generate various signals, address information, and a clock necessary for the operation of the servo circuit 13, and outputs these to the servo circuit 13. Has been made. In a similar manner, a reproduction signal whose signal level changes in accordance with a pit row and a mark row formed on the optical disc 12 is generated, and reproduction data obtained by processing the reproduction signal is output to the digital signal processor 15. .

Digital signal processor (DSP)
Reference numeral 15 denotes a control circuit for controlling the operation of the optical disk unit 5, and a digital signal processing circuit for processing reproduced data obtained from the output signal of the optical pickup 14. The digital signal processor 15 controls the operation of the servo circuit 13 by controlling the controller 3 when the power supply rises and when the loading of the optical disc 12 is detected by a detection mechanism (not shown).
4 is sought to the lead-in area of the optical disc 12,
By processing the reproduced data obtained from the lead-in area, data necessary for accessing the optical disk 12 is obtained.

The data necessary for accessing the optical disk 12 is constituted by identification data indicating the type of the optical disk 12, title data of the optical disk 12, management data, and the like. Here, when the optical disk 12 is a CD-R or CD-RW in which various files are recorded by a personal computer, the management data is data for file management recorded on the optical disk 12, and is recorded on the optical disk 12. It is composed of a directory structure of a file, a file name of each file, address information indicating a recording position of each file on the optical disk 12, and the like. On the other hand, when the optical disk 12 is a compact disk, the management data is composed of UTOC data. Thus, in this management data, in a normal optical disk device connected to a computer, a series of data loaded from the optical disk and held, and used for accessing the optical disk by a command from the computer or by a user operation. Data.

The digital signal processor 15 records and holds data acquired from the optical disk 12 by a series of processes in a memory (not shown). Further, when the loaded optical disk 12 is a CD-R or CD-RW, the digital signal processor 15 detects a file that can be reproduced on the optical disk unit 5 from the management data. Here, in the optical disk section 5, a so-called MP3
(Moving Picture Experts Group audio layer 3) It is possible to decompress audio data that has been compressed according to the format. The digital signal processor 15 detects a file based on audio data compressed in the MP3 format by determining the extension of each file.

Further, the digital signal processor 15
Analyzes the hierarchical structure of detected files, groups file names assigned to the same folder, and lists playable files as shown in FIG. Here, the digital signal processor 15 determines, for a file assigned to each folder,
A predetermined identification code is set so as to be continuous and between folders in different folders so that the folders are different, and these file names are listed.

Thus, in the example shown in FIG.
File name File held in one folder
After three files 001, File002, and File003 are grouped and listed so as to be continuous, file names File004, File005, and File00 held in one folder are successively obtained.
6 are listed, and the file name File00 held in one folder
7, two files according to File008 are listed.

The digital signal processor 15 notifies the compact disk 3 of this list. In this way, such folder settings are set so that the user can easily select music on a personal computer. As a result, in this embodiment, a list based on file names of reproducible files is generated, reflecting the intention of the folder set by the user.

When the file name list is notified in this way and the reproduction is instructed by the controller 3, the digital signal processor 15 controls the operation of the servo circuit 13 based on the corresponding management data held, and responds. Play the file. In this process, the digital signal processor 15 performs data processing on the reproduction data obtained from the optical pickup 14 in a predetermined format to sequentially generate audio data, expands the audio data, performs digital-to-analog conversion processing, and outputs the data.

The display unit 8 is composed of, for example, a liquid crystal display panel, and displays various menu screens under the control of the controller 3, and furthermore, graphically displays volume and the like.
Here, in the car audio device 1, when the display unit 8 displays the file name so that the user can easily see it,
The display area is limited to such an extent that the file names can be displayed only for a few songs. As a result, as shown in FIG. The file name to be reproduced is displayed at the center, and the upper and lower file names in the list shown in FIG. 3 are displayed.

Further, as shown by scrolling the frame up and down, the display section 8 is configured to sequentially switch the file names to be displayed under the control of the controller 3 in response to the operation of the operating element by the user.

The operation unit 9 includes a remote commander and a data communication unit that notifies the controller 3 of a remote control signal output from the remote commander and operations of the operators 9A, 9B,....

The controller 3 is control means for controlling the operation of the car audio apparatus 1 as a whole.
The tuner unit 2, the cassette unit 4, the optical disk unit, and the like, according to the notification from the operation unit 9 and the notification from the optical disk unit 5, etc. A control command is output to 5 or the like, whereby the overall operation is switched according to the operation of the user. Thus, the car audio device 1 operates the operating elements 9A and 9B of the operation unit 9 to select a desired song while visually checking the song name and the like displayed on the display unit 8, and further selects the desired song. By instructing the reproduction of the music, the reproduction of the music corresponding to the optical disk unit 5 can be instructed.

That is, the controller 3 is instructed by the user to reproduce the optical disk 12, and in accordance with the detection result of the optical disk 12 by the digital signal processor 15, when the optical disk 12 is a compact disk, similarly to the processing in a normal optical disk device. In response to the operation of the operation unit 9 by the user, a control command is transmitted to the optical disk unit 5. Also, the display unit 8 displays a track number and the like.

On the other hand, when the optical disk 12 is a CD-R or CD-RW, the controller 3 displays the list acquired from the digital signal processor 15 on the display unit 8, and furthermore, the user operates the up / down operation device 9
In response to the operations of A and 9B and the operation of the corresponding remote commander, the display of the file name on the display unit 8 is scrolled. Further, when the user instructs the reproduction of the music, the reproduction instruction is made to the optical disk unit 5 for the display target file displayed at the center.

On the other hand, when the user instructs the automatic reproduction, the controller 3 sequentially instructs the optical disk unit 5 to reproduce the optical disk 12 in the order of the list, and the display on the display unit 8 corresponds to the instruction. Switch.

At the time of such reproduction, when the user operates the up / down controls 9A and 9B, or when the corresponding control is operated on the remote commander, the corresponding control is operated. As described above, the optical disc unit 5 switches the reproduction target to the file following the file currently being reproduced or the file immediately before.
To send a control command. The display on the display unit 8 is switched so as to correspond to this.

In the switching of the display of the display unit 8 corresponding to the switching of the access target, the controller 3 controls the display of FIG.
If the playback procedure is switched to a file in a different group than before,
Notify users.

That is, when the display is switched, the controller 3 proceeds from step SP1 to step SP2, and displays the file to be reproduced, which is displayed at the center of the display unit 8, from the list notified by the digital signal processor 15 up to that point. It is determined whether or not the group is different from the group of the file displayed in the center of the unit 8. If a negative result is obtained here, the controller 3 proceeds to step SP3
And ends the processing procedure.

On the other hand, if a positive result is obtained in step SP2, the controller 3 proceeds to step SP4, notifies the switching of the group by the notification method set by the user, and then proceeds to step SP3. That is, when the user selects the notification by the sound effect, the controller 3 outputs a predetermined notification sound from the speaker 7 under the control of the audio signal processing circuit 6. On the other hand, when the user selects the notification by display on the display unit 8, predetermined symbols and graphics are displayed on the display unit. On the other hand, when the user instructs the notification by the lighting, the lighting on the display unit 8 is switched.

(2) Operation of Embodiment In the above configuration, in the car audio device 1 (FIG. 2), when the user selects the radio broadcast, the tuner unit 2 is controlled by the controller 3 based on the notification from the operation unit 9. Receives a broadcast wave to generate an audio signal. The audio signal is processed by an audio signal processing circuit 6 and output from a speaker 7. When the user selects the tape cassette reproduction, the tape cassette is reproduced by the cassette unit 4 to generate an audio signal under the same control of the controller 3, and the audio signal is processed by the audio signal processing circuit 6 and the speaker 7 is reproduced. Output from

On the other hand, when the user loads the optical disk 12 into the optical disk unit 5, the car audio device 1 controls the digital signal processor 15 to
The lead-in area of the optical disk 12 is reproduced, and the type of the optical disk 12 is determined. Furthermore, this optical disk 1
When 2 is a compact disc, UTOC data is reproduced and recorded in a memory, and the controller 3 is notified of the title of the optical disc 12, the number of tracks, and the like.

Further, when the user instructs the reproduction of the optical disk 12, the optical disk 12 is reproduced by the control of the digital signal processor 15 based on the UTOC data which is the management data recorded in the memory, and the reproduction obtained as a result is obtained. The data is processed by the digital signal processor 15 to generate an audio signal. Further, the audio signal is processed by the audio signal processing circuit 6 and output from the speaker 7. As a result, in the car audio device 1, radio broadcast, tape cassette,
You can enjoy a compact disc.

On the other hand, the optical disk 12 is a C
In the case of DR and CD-RW (FIG. 3), in the car audio device 1, the management data is reproduced and recorded in the memory. Further, by processing the management data, only the file names of the file formats that can be expanded in the optical disk unit 5 are selected, and the files belonging to the same folder are successively named. The file names are listed so that they can be identified.

Further, in the car audio device 1, this list is notified to the controller 3, and one of the files recorded in these lists is set as a reproduction target file to be accessed, and the file name of this file and the list are displayed. The file names recorded before and after this file are displayed on the display unit 8. Further, when the user operates the up / down controls 9A and 9B for music selection, the reproduction target is sequentially switched in response to the operation of the controls 9A and 9B, and the display on the display unit 8 is displayed in response to the switching. Can be switched.

In this switching, when the reproduction target is switched to a file of a different group, the car audio device 1 emits a predetermined sound from the speaker 7 according to the user's prior setting, and displays and illuminates on the display unit 8. Is switched, whereby the user is notified of the group switching. As a result, the user can press the controls 9A and 9B and confirm the delimitation by the folder set by himself / herself using these notifications as a guide, and accordingly easily and surely select a desired file. be able to.

Thus, in the car audio device 1, when the file is selected by the user in this way and the operators 9A and 9B are not operated, the controller 3 controls the digital signal processor to access the reproduction target selected by the user. 15, the audio data of the corresponding file is reproduced on the optical disk unit 5. Further, after the audio data is expanded and converted into an audio signal, the audio data is output from the speaker 7 by the audio signal processing circuit 6.

The user listens to the audio signal output from the speaker 7 in this way, switches the playback target by operating the controls 9A and 9B again as needed, and selects a desired file again. In this case as well, it is possible to easily and reliably select a desired file by checking a break between groups.

(3) Effects of the Embodiment According to the above configuration, it is determined whether or not an access target is switched to a file assigned to a different folder, and the user is notified of it. Thus, when selecting and reproducing, a desired file can be easily and reliably selected.

(4) Other Embodiments In the above embodiment, a case has been described in which a file grouped by a folder is accessed. However, the present invention is not limited to this. Can be set to That is, music content can be classified according to genres such as jazz and classical music, and can also be classified according to artists and the year of announcement. In this way, groups may be formed based on such divisions, and the user may be notified of a break in the group. In this case, for example, in an MP3 file, the files can be grouped using the ID3 tag, which is additional information added to the file, as a criterion for grouping.

Further, in the above-described embodiment, the case where the group break is notified by sound through the speaker 7 has been described. However, the present invention is not limited to this. It may be.

In the above embodiment, MP3
I mentioned the case of selectively playing the file of
The present invention is not limited to this. For example, ATRAC (Adaptive T
The present invention can be widely applied to the case of selectively reproducing a file of random acoustic coding (ransform) and the case of selectively reproducing an MP3 or ATRAC file by switching the selection by a user operation.

In the above-described embodiment, the case where the optical disk is reproduced has been described. However, the present invention is not limited to this, and when reproducing the music content recorded on the hard disk device, the server is connected via the communication means. The present invention can be widely applied to a case where music content is accessed and played back.

In the above-described embodiment, the case where music content is reproduced by applying the present invention to a car audio device has been described. However, the present invention is not limited to this, and information such as various audio devices, video devices, personal computers, etc. The present invention can be widely applied to a case where music content, video content, and the like are accessed by being applied to a processing device.

[0055]

As described above, according to the present invention, a large number of files can be selected by a user operation by determining whether or not the access target is switched to a file assigned to a different group and notifying the user. In the case of processing, a desired file can be easily and reliably selected.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a processing procedure of a controller in a car audio device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a car audio device using the controller of FIG. 1;

FIG. 3 is a table provided for describing an operation of the controller in FIG. 1;

[Explanation of symbols]

1 ... car audio device, 3 ... controller, 5 ...
... Optical disk unit, 8 ... Display unit, 9 ... Operation unit

Claims (9)

[Claims] 1. A file management method for accessing recording means for recording a plurality of files, comprising: a step of detecting switching of a file to be accessed; and a step of detecting switching in the step of detecting switching. A switching control step of switching a file to be accessed; and a group determination for determining whether or not the file to be newly accessed by the switching control step belongs to the same group as the file to be accessed immediately before. And a notification step of notifying a user of a determination result obtained by the group determination step. 2. The file management method according to claim 1, wherein, in the notification step, switching of the access target to a file belonging to a different group is notified by lighting. 3. The file management method according to claim 1, wherein, in the notification step, switching of the access target to a file belonging to a different group is notified by sound. 4. The file management method according to claim 1, wherein, in the notification step, switching of the access target to a file belonging to a different group is notified by a change in display. 5. The file management according to claim 1, wherein the switching of the access target to the file belonging to the different group is a switching of the access target to a file assigned to a different folder. Method. 6. The file to be accessed newly and the file to be accessed immediately before are files of compressed audio data, and the step of determining a group includes the step of adding the file added to the file. 2. The file management method according to claim 1, wherein it is determined whether or not the file to be newly accessed is a file belonging to the same group as the file to be accessed immediately before. 7. A program for a file management method for accessing a recording unit that records a plurality of files, the file management method comprising: a switching detection step of detecting a switching of a file to be accessed; and a switching detection step. A switching control step of switching the file to be accessed in response to the detection of the switching; and determining whether the file to be newly accessed by the switching control step belongs to the same group as the file to be accessed immediately before. A program for a file management method, comprising: a group determination step of determining whether or not the group is determined; and a notification step of notifying a user of a determination result in the group determination step. 8. A recording medium on which a program for a file management method for accessing a recording means for recording a plurality of files is recorded, wherein the file management method comprises the steps of: detecting a change of a file to be accessed; A switching control step of switching the file to be accessed in response to the detection of the switching by the switching detection step; and a file to be newly accessed by the switching control step is the same as the file to be accessed immediately before. A recording medium recording a program of a file management method, comprising: a group determination step of determining whether a file belongs to a group; and a notification step of notifying a user of a determination result obtained by the group determination step. . 9. A file management apparatus for accessing recording means for recording a plurality of files, comprising: switching detection means for detecting switching of a file to be accessed;
Switching control means for switching the file to be accessed; group determination means for determining whether the file to be newly accessed by the switching control means belongs to the same group as the file to be accessed immediately before; And a notifying means for notifying a user of a judgment result by the group judging means.