JP3994765B2 - Signal recording / playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a signal recording / reproducing apparatus. Specifically, when a plurality of groups having one track is detected based on the additional information read from the recording medium, these tracks are detected with respect to the additional information, and one of the detected plurality of groups is a group for aggregation. Change to move there, delete the information of the group whose track number became 0 as a result, If you find an ungrouped track after making a change to move to a group for aggregation, make a change to move this track to a group for aggregation. The additional information after the change is written back to the recording medium.
[0002]
[Prior art]
In a conventional signal recording / reproducing apparatus, not only a content signal of audio content such as music is recorded on a recording medium, but also information for easily reproducing a desired content signal from the recording medium is generated and recorded on the recording medium. Things have been done. For example, in a mini-disc device using a mini-disc that is a random-accessible recording medium, not only can a content signal such as a song be recorded on the mini-disc in units of tracks (song numbers), but also information on the recorded content signal It can be recorded.
[0003]
This information indicates the title of the recording medium, the song name of the recorded song, the signal recording position for each track, etc., for example, by specifying the track number of the desired song name, the recording associated with this track number The content signal is read from the position, and a song having a desired song name can be easily reproduced.
[0004]
In addition, recording media and signal recording / playback apparatuses are capable of recording many content signals on a single recording medium with high density recording and high compression of signals to be recorded. For example, in the above-described mini-disc device, a device corresponding to the “MDLP” standard capable of recording a large amount of music by increasing the compression rate of a signal to be recorded has been put into practical use.
[0005]
Here, when many music pieces are recorded on one recording medium, the music titles and track numbers indicated by the information related to the recorded music pieces increase, and the desired music piece cannot be easily selected. For this reason, it is assumed that the recorded music is managed by grouping, for example, by performing a content signal playback operation in a specified group, even if many music is recorded, the desired music is easily played back. It is made to be able to do it.
[0006]
[Problems to be solved by the invention]
By the way, when dubbing music recorded on a compact disc to a mini disc, for example, music that has been dubbed during the period from when the compact disc is installed until the operation related to the exchange of the compact disc is performed is automatically performed. If an operation mode for one group is provided and dubbing processing is performed in this operation mode, an operation for designating a group for each dubbing of music is not required, and the operation can be simplified. However, when only one of the songs recorded on the compact disc is dubbed while sequentially replacing the compact discs, each dubbed song is made into one group. For this reason, even if grouping is performed, if the number of songs in the group becomes one, the group function cannot be used effectively. Also, when such an operation mode is not used, the dubbed music is not grouped, and the group function cannot be used.
Accordingly, the present invention provides a signal recording / reproducing apparatus capable of effectively functioning grouping of recorded content signals.
[0007]
[Means for Solving the Problems]
A signal recording / reproducing apparatus according to the present invention uses a recording medium on which a content signal, information for managing the content signal in units of tracks, and additional information having information for grouping the content signals in units of tracks are recorded. A recording / reproducing means for recording / reproducing the signal, a control means for controlling the operation of the recording / reproducing means, and an operation setting means for setting the operation of the control means. When a plurality of groups having a single track number are detected based on the additional information read from the recording medium when the operation setting is performed, these tracks are detected as one of the detected plurality of groups with respect to the additional information. Change to move the group as a group for gathering, delete the information of the group whose track number became 0 as a result, If a track that is not grouped is detected after a change to move to the group for collection, a change is made to move this track to the group for additional information. By controlling the recording / reproducing means, the changed additional information is written back to the recording medium.
[0008]
In the present invention, a signal such as a music signal as a content signal is recorded, and additional information including information for managing the recorded music signal in units of tracks and information for grouping in units of tracks is recorded. For example, when a regrouping operation is performed when using a mini-disc, for example, a group having one track or one track is based on additional information read from the user TOC area of the mini-disc. It is detected whether or not there is a track that is not grouped with a certain group. Here, when a plurality of groups having a single track number are detected, these tracks are moved to the additional information, for example, the first group of the detected plurality of groups is used as a group for collection. Make a change and delete the information of the group whose track number is 0 as a result, If an ungrouped track is detected after the change to move to the collective group, make a change to move this track to the collective group, The changed additional information is written back to the user TOC area.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the structure of a stereo apparatus. A compact disc block 20 reproduces a signal recorded on a compact disc, which is a signal reproduction medium, and a mini disc block 40 compacts a mini disc, which is a recording medium. Record the signal obtained by playing the disc. The stereo apparatus includes a tuner unit 81, a tape deck unit 82, a signal input / output unit 83, a system control unit 90, and the like.
[0010]
The compact disc block 20 can be provided with a plurality of compact discs 100, and the compact disc 100 that reproduces recorded signals is rotationally driven by a spindle motor unit 21. An optical pickup unit 23 is disposed on the laser light irradiation surface side of the compact disk 100 that is driven to rotate.
[0011]
The optical pickup unit 23 irradiates the compact disc 100 with laser light having a predetermined power, generates a read signal RSc based on the reflected light from the compact disc 100, and supplies it to the RF amplifier unit 24. The RF amplifier unit 24 generates a digital read data signal REc from the read signal RSc supplied from the optical pickup unit 23 and supplies the digital read data signal REc to the signal processing unit 30. Further, the RF amplifier unit 24 generates a focus error signal FEc and a tracking error signal TEc based on the read signal RSc, and supplies them to the servo control unit 25.
[0012]
In the servo control unit 25, a focus control signal FCc for adjusting the position of an objective lens (not shown) of the optical pickup unit 23 based on the focus error signal FEc and the tracking error signal TEc supplied from the RF amplifier unit 24 A tracking control signal TCc is generated and supplied to the driver 26.
[0013]
The driver 26 generates a focus drive signal FDc based on the focus control signal FCc, and generates a tracking drive signal TDc based on the tracking control signal TCc. The focus drive signal FDc and the tracking drive signal TDc are supplied to an actuator (not shown) of the optical pickup unit 23 to adjust the position of the objective lens, so that the laser beam is emitted on the laser beam irradiation surface side of the compact disc 100. Control is performed so as to focus at a desired position.
[0014]
The servo control unit 25 generates a sled signal SSLc and supplies it to the sled motor unit 27. The sled motor unit 27 compacts the optical pickup unit 23 so that the irradiation position of the laser beam does not exceed the tracking control range. The disk 100 is moved in the radial direction.
[0015]
The signal processing unit 30 performs EFM (Eight to Fourteen Modulation) decoding processing and CIRC (Cross Interleaved Reed Solomon Code) decoding processing on the read data signal REc supplied from the RF amplifier unit 24. The reproduction data signal DRc obtained by performing this decoding process is supplied to the signal selection / conversion processing unit 80. The reproduction data signal DRc is converted into an analog audio output signal SAc by the D / A converter 31 and supplied to the signal selection / conversion processor 80.
[0016]
Further, the signal processing unit 30 generates a disk drive signal SSPc based on the frame synchronization signal detected from the read data signal REc so that the rotational speed of the compact disk 100 becomes a desired speed, and supplies it to the spindle motor unit 21. As a result, the compact disc 100 is rotated at a predetermined rotational speed. Further, TOC information, subcode information, and the like obtained based on the read data signal REc are supplied as an information signal JTc to the CD control unit 35 constituting the operation control means. The operation control means includes a CD control unit 35, a mini disk control unit 60 and a system control unit 90 which will be described later.
[0017]
The disc switching unit 33 performs switching processing of the compact disc 100 on which signal reproduction is performed based on the disc switching signal CH from the CD control unit 35.
The CD control unit 35 is configured by using a microcomputer. The CD control unit 35 generates a control signal CTc based on a compact disc reproduction control signal MCc and an information signal JTc from a system control unit 90 described later. The operations of the servo control unit 25, the signal processing unit 30, and the like are controlled by the control signal CTc. Further, based on the compact disk reproduction control signal MCc and the information signal JTc, the disk switching signal CH is generated and supplied to the disk switching unit 33 to switch the compact disk to be reproduced. Further, the CD control unit 35 generates an information signal KDc indicating the number of songs recorded on the compact disc 100, the reproduction time, and the like based on the information signal JTc and supplies the information signal KDc to the system control unit 90. Of course, the information signal JTc may be supplied to the system control unit 90.
[0018]
The mini disk 200 mounted on the mini disk block 40 is rotationally driven by a spindle motor section 41, and a recording magnetic head section 42 constituting signal recording / reproducing means on one surface (upper surface in the drawing) side of the mini disk 200. The optical pickup unit 43 is arranged on the laser beam irradiation surface side, which is the lower surface side, so that the laser beam can be irradiated to the position where the magnetic field modulated based on the signal to be recorded is applied by the magnetic head unit 42. Has been made. The signal recording / reproducing means includes a magnetic head unit 42, an optical pickup unit 43, an RF amplifier unit 44, a servo control unit 45, a driver 46, a signal processing unit 50, a recording amplifier 58, and the like which will be described later.
[0019]
The optical pickup unit 43 irradiates the mini disc 200 with laser light of a predetermined power based on a laser control signal CP from a servo control unit 45 described later, and generates a read signal RSm based on the reflected light from the mini disc 200. To the RF amplifier unit 44. The RF amplifier unit 44 generates a digital read data signal REm from the read signal RSm supplied from the optical pickup unit 43 and supplies it to the signal processing unit 50. Further, the RF amplifier unit 44 generates a focus error signal FEm and a tracking error signal TEm based on the read signal RSm, and supplies the focus error signal FEm and the tracking error signal TEm to the servo control unit 45. Further, a wobble signal RB that is a signal obtained by reading a pre-groove wobble formed in advance on the mini disk 200 is generated and supplied to the decoder unit 48.
[0020]
The servo control unit 45 adjusts the focus control signal FCm for adjusting the position of the objective lens (not shown) of the optical pickup unit 43 based on the focus error signal FEm and the tracking error signal TEm supplied from the RF amplifier unit 44. A tracking control signal TCm is generated and supplied to the driver 46.
[0021]
The driver 46 generates a focus drive signal FDm based on the focus control signal FCm, and generates a tracking drive signal TDm based on the tracking control signal TCm. The focus drive signal FDm and the tracking drive signal TDm are supplied to an actuator (not shown) of the optical pickup unit 43 to adjust the position of the objective lens, so that the laser light is emitted on the laser light irradiation surface side of the mini disk 200. Control is performed so as to focus at a desired position.
[0022]
The servo control unit 45 generates a sled signal SSLm and supplies it to the sled motor unit 47. The sled motor unit 47 controls the optical pickup unit 43 so that the irradiation position of the laser beam does not exceed the tracking control range. The disk 200 is moved in the radial direction.
[0023]
In the decoder unit 48, the band of the wobble signal RB is limited to take out the wobble component and binarize it, further perform demodulation processing, generate an address information signal Dad, and supply the address information signal Dad to the minidisk control unit 60 constituting the operation control means. To do. The operation control means includes a mini disk control unit 60 and a system control unit 90. Further, the synchronization pattern of the obtained address information signal Dad is detected, a disk drive signal SSPa is generated so that the rotational speed of the mini disk 200 becomes a desired speed, and supplied to the spindle motor unit 41. To control the rotation speed. Further, based on a frame synchronization signal detected from the read data signal REm by the signal processing unit 50 described later, a disk drive signal SSPb is generated and supplied to the spindle motor unit 41 so that the rotation speed of the mini disk 200 becomes a desired speed. Therefore, even with a read-only mini disc in which no wobble is formed, the mini disc 200 can be rotated at a desired speed.
[0024]
The signal processing unit 50 performs EFM (Eight to Fourteen Modulation) decoding processing and CIRC (Cross Interleaved Reed Solomon Code) decoding processing on the read data signal REm supplied from the RF amplifier unit 44. The compressed data signal RD obtained by performing this decoding process is supplied to the earthquake resistant memory 52 via the memory controller 51. The earthquake-resistant memory 52 is configured using a rewritable dynamic RAM, for example, and temporarily holds the supplied compressed data signal RD. The memory controller 51 manages the writing position and reading position of the data signal in the earthquake-resistant memory 52.
[0025]
Further, the signal processing unit 50 generates the disk drive signal SSPb and supplies it to the spindle motor unit 41 as described above, and supplies the work memory 61 with the TOC information obtained based on the read data signal REm.
[0026]
The compressed data signal RD held in the earthquake-resistant memory 52 is sequentially read out by the memory controller 51 and supplied to the compression / decompression processing unit 53. The compression / decompression processing unit 53 performs decoding processing of ATRAC (Adaptive Transform Acoustic Coding) or ATRAC3 to decode the compressed data signal. The data signal obtained by this decoding process is supplied to the signal selection / conversion processing unit 80 as a reproduction data signal DRm. The reproduction data signal DRm is converted into an analog audio output signal SAm by the D / A converter 54 and supplied to the signal selection / conversion processor 80.
[0027]
The analog audio recording signal SWm supplied from the signal selection / conversion processing unit 80 to the mini-disc block 40 is converted into a digital audio data signal by the A / D converter 55 and supplied to the compression / decompression processing unit 53. The The compression / decompression processing unit 53 is supplied with the digital audio data signal DWm from the signal selection / conversion processing unit 80.
[0028]
The compression / decompression processing unit 53 performs an ATRAC or ATRAC3 encoding process on the audio data signal supplied from the A / D converter 55 and the audio data signal DWm supplied from the signal selection / conversion processing unit 80, Encode the data signal. The data signal obtained by this encoding process is supplied to the memory controller 51 as a compressed data signal WD.
[0029]
In the memory controller 51, the compressed data signal WD supplied from the compression / decompression processing unit 53 is sequentially stored in the earthquake-resistant memory 52. Further, the compressed data signal WD temporarily stored in the earthquake-resistant memory 52 is read and supplied to the signal processing unit 50.
[0030]
The signal processing unit 50 performs CIRC encoding processing and EFM encoding processing on the compressed data signal WD supplied from the memory controller 51. A signal obtained by performing this encoding process is supplied to the recording amplifier 58 as a recording data signal WS.
[0031]
In the recording amplifier 58, the supplied recording data signal WS is amplified and supplied to the recording magnetic head unit 42, and a magnetic field corresponding to the recording data signal WS is generated in the magnetic head unit 42. At this time, a laser beam with a predetermined power is emitted from the optical pickup unit 43 to the mini disc 200 by the laser control signal CP from the servo control unit 45, and the magnetic head unit 42 generates the mini disc 200. A mark corresponding to the magnetic field is formed to record a signal.
[0032]
When various information recorded in the lead-in area or the user TOC area of the mini disc 200 is read, the read information is transferred from the signal processing unit 50 to the mini disc control unit 60 as described above. Is supplied as an information signal JTm.
[0033]
The mini disk control unit 60 is configured by using a microcomputer. The mini disk control unit 60 includes a mini disk control signal MCm from a system control unit 90 to be described later, an address information signal Dad from the decoder unit 48, The control signal CTm is generated based on the information indicated by the information signal JTm and the operation of the servo control unit 45 and the signal processing unit 50 is controlled by the control signal CTm. Further, the recording position information of the signal recorded on the mini disc 200, information on the recorded signal, and the like are read and held in the work memory 61, and the change of the held information and the changed information are recorded on the mini disc. It also controls operations such as processing. Further, the mini-disc control unit 60 generates an information signal KDm indicating the recordable time of the mini-disc 200 based on the information in the work memory 61 that is changed along with the recording of the music and supplies it to the system control unit 90.
[0034]
The signal selection / conversion processing unit 80 is connected to the compact disc block 20, the mini disc block 40, the tuner unit 81, the tape deck unit 82, and the signal input / output unit 83, and the reproduction data signal DRc from the compact disc block 20 is connected. And audio output signal SAc, reproduction data signal DRm and audio output signal SAm from mini-disc block 40, received audio signal Stu obtained by receiving broadcast waves at tuner unit 81, and magnetic tape is reproduced by tape deck unit 82. Any one of the tape reproduction signal Stp obtained in this way and the input signal Sin input to the signal input / output unit 83 is selected and supplied to the output adjustment unit 84. When the selected signal is a digital signal, it is converted into an analog signal and supplied to the output adjustment unit 84.
[0035]
Further, by selecting any reproduction data signal, reproduction signal or audio output signal and supplying it to the mini disk block 40 or the tape deck unit 82, a desired signal can be recorded on the mini disk 200 or the magnetic tape. The signal selection / conversion operation in the signal selection / conversion processing unit 80 is performed based on the control signal CS supplied from the system control unit 90.
[0036]
The output adjustment unit 84 adjusts the signal level of the signal selected by the signal selection / conversion processing unit 80 based on the adjustment signal VR from the system control unit 90, and outputs it to the audio output unit 85 such as a speaker as the audio output signal Sout. Supply. The output adjustment unit also adjusts the sound quality.
[0037]
The system control unit 90 includes operation setting means for switching operations of the compact disc block 20, the mini disc block 40, the tuner unit 81, and the tape deck unit 82, adjusting the sound output from the audio output unit 85, and the like. A certain operation unit 91 is connected, and the system control unit 90 generates a compact disc reproduction control signal MCc based on the operation signal PS generated in response to the operation of the operation unit 91 and supplies it to the CD control unit 35. At the same time, a mini disk control signal MCm is generated and supplied to the mini disk control unit 60 and the like to control the operation of each unit. Further, a display signal PR for displaying the operation state and the like of each device is generated and supplied to the display unit 92, and the operation state of each device is displayed on the display unit 92. Further, the signal selection / conversion processing unit 80 is controlled by the control signal CS using the signals supplied from the CD control unit 35, the mini disc control unit 60, etc., so that the compact disc block 20 and the mini disc block 40 are connected. Copy processing etc. is also performed.
[0038]
FIG. 2 shows a configuration of a mini-disc 200 used in the mini-disc block 40, and a clamping plate 200a for holding the disc is provided at the center of the mini-disc 200. A lead-in area 200b is formed on the innermost circumference on the laser light irradiation surface side of the mini disk 200. In a recordable / reproducible disk, the output of laser light during recording, a user TOC area, and a program area described later TOC (Table of Contents) information such as address is recorded. A user TOC area 200c is formed on the outer periphery side of the lead-in area 200b, and information relating to the title of the mini disc and the music recorded in the program area 200d in units of tracks (song numbers) is formed in the user TOC area 200c. Information indicating a signal recording position for each track, group management information for grouping recorded music in units of tracks, and the like can be recorded as additional information.
[0039]
A program area 200d is formed on the outer periphery side of the user TOC area 200c, and a music signal is recorded in the program area 200d. Further, a lead-out area 200e is formed on the outer peripheral side of the program area 200d. Note that a reproduction-only mini-disc has a program area on the outer periphery side of the lead-in area.
[0040]
Here, in sector 0 of the user TOC area 200c, the start address and end address for each track of the mini disk and the next signal recording position are discriminated even if the signal of this track is not recorded in the continuous area, and continuous reproduction is performed. Link information that enables recording is recorded for each track number. Also, address information of the free area of the mini disc is recorded. For this reason, based on the start address and end address of the selected track number, it is possible to reproduce the music of the selected track number. In addition, new music can be recorded in the free area by using the address information of the free area. Furthermore, by rewriting the information of sector 0 and changing the relationship between the track number and the start address or end address, the separation and combination of the music can be performed without changing the signal recording position of the music recorded in the program area 200d. , Delete, and move editing processing.
[0041]
Sector 1 and / or sector 4 (hereinafter simply referred to as “sector 1”) have a disk name area and a track name area, and group management information is recorded in the disk name area along with the title of the disk. In the track name area, the title of the recorded music, the player name, etc. are recorded in association with the track number. Further, in sector 2, the recording date and time of each song is recorded.
[0042]
The group management information is information for grouping the recorded music in order to facilitate the selection of the recorded music, and the group management information is used to operate the group management function, for example, recording. The recorded music can be played back in groups. This grouping is performed by the user so as to facilitate the selection of music, and the group management information is composed of information indicating a group name and music included in the group.
[0043]
FIG. 3 is a diagram for explaining the relationship between music and group management information. Here, the title of the mini-disc is “DNs”, and as shown in FIG. 3A, songs with song names “H1” to “H12” are recorded as track numbers “1” to “12”. As shown in FIG. 3B, the disc title information “DNs” is recorded in the disc name area, and the song titles “H1” to “H1” to “H” are recorded in the track name area. H12 "is recorded in association with the track number.
[0044]
Here, in the group management information, when one group is composed of continuous track numbers and the track numbers in the group are necessarily increased, as shown in FIG. 1 ”to“ 4 ”are grouped into a group name“ GNa ”, and track numbers“ 5 ”to“ 9 ”are grouped into a group name“ GNb ”. Further, the track numbers “10” to “12” are grouped into a group name “GNc”. In such a case, as shown in FIG. 3C, group management information indicating the relationship between the group name and the track number is recorded in the disc name area.
[0045]
By the way, when the music recorded on the compact disc is dubbed to the mini disc, if it is automatically grouped in units of discs, for example, when only one song is dubbed, one music is made into one group. End up. For this reason, when a regrouping operation is performed by the operation unit 91, a regrouping editing process is performed in which a group having one piece of music or an ungrouped piece of music is made one group.
[0046]
FIG. 4 is a flowchart showing the regroup editing process. When the operation signal PS for starting the regroup editing process is started from the operation unit 91, the system control unit 90 and the mini disk control unit 60 start the regroup editing process.
[0047]
In step ST1, a display signal PR is supplied to the display unit 92, an editing operation display indicating that the regroup editing process is being performed is performed, and the process proceeds to step ST2.
[0048]
In step ST2, information recorded in the user TOC area 200c is read, or information already read out from the user TOC area 200c and stored is used to determine the relationship between recorded music and groups. The process proceeds to step ST3.
[0049]
In step ST3, based on the group management information, it is determined whether or not there are a plurality of groups having one song. Here, when a plurality of groups having one music number are provided, the process proceeds to step ST4, and when there is no group having one music number, the process proceeds to step ST7.
[0050]
In step ST4, it is determined whether or not a set group for grouping a group having one song is provided. Here, when the set group is not provided, the process proceeds to step ST5, and when the set group is provided, the process proceeds to step ST6.
[0051]
In step ST5, a group for aggregation is set. In this group setting, for example, the first group with one song is set as the group for collection. In this way, if the first group with one song is set as the group for collection, the group for collection can be automatically set, so the group group setting operation is performed during the regroup editing process. It is possible to automate the regroup editing process without having to perform the above process. In setting the group for collection, a desired group may be set as a group for collection or a new group for collection may be provided. In this case, the user can set which group each music is to be collected. Furthermore, if a name that makes it possible to determine that the group is a collective group is set for the collective group, this dubbed song is used for the collective when one piece of music is subsequently dived while exchanging the compact disc 100. Can be added to groups sequentially. In addition, even if the minidisk 200 is replaced, it is not necessary to set a group for each minidisk 200 by sequentially adding to the groups whose names can be determined to be the group for aggregation.
[0052]
In step ST6, one grouping process is performed. In this one-grouping process, the additional information in the user TOC area 200c is changed, and the music pieces whose number of music pieces is included in one group are grouped into one group as music for the group for collection. Further, the additional information is updated by writing the changed information back to the user TOC area 200c.
[0053]
In step ST7, based on the track number and the group management information, it is determined whether or not there is an ungrouped music. If an ungrouped music is detected, the process proceeds to step ST8, and the ungrouped music is detected. If it cannot be detected, the process proceeds to step ST11.
[0054]
In step ST8, as in step ST4, it is determined from the information in the user TOC area 200c whether a group for collection is provided. Here, when the group for aggregation is not provided, the process proceeds to step ST9. After the group for aggregation is set in the same manner as in step ST5, the process proceeds to step ST10. Further, when the set group is provided, the process proceeds from step ST8 to step ST10.
[0055]
In step ST10, as in step ST6, one grouping process is performed, and music that is not included in the group is grouped into a group for collection, and additional information is updated.
[0056]
In step ST11, the display is switched, the display indicating that the regroup editing process is being performed is terminated, and the regroup editing process is terminated.
[0057]
FIG. 5 is a diagram for explaining the regroup editing process, and shows the grouping state before and after the regroup editing process. As shown in FIG. 5A, the songs “Ha”, “Hb”, “Hh”, and “Hj” are grouped into one group “GNg”, “GNh”, “GNm”, and “GNr”, respectively, and the songs “Hc, Hd, He, When “Hf, Hg” is one group “GNk” and the above-described regroup editing process is performed, for example, as shown in FIG. 5B, the group “GNg” of the first song “Ha” is assembled. By making the music “Hb”, “Hh”, and “Hj” move to this collective group, one grouping is performed. Here, when moving the music “Hb”, “Hh”, and “Hj” to the collective group, the user TOC is set so that the track numbers of the music “Ha”, “Hb”, “Hh”, and “Hj” to be grouped are consecutive. The information of sector 0 in area 200c is changed. That is, the track in which the start address and end address of the music “Hh” are set is changed from the track number “8” to the track number “3”. Also, the track where the start address and end address of the song “Hj” are set is changed from the track number “9” to the track number “4”. In addition, with the movement of the music “Hh” and “Hj”, the tracks in which the start address and end address of the music “Hc, Hd, He, Hf, Hg” are set are track numbers “3, 4, 5, 6”. , 7 ”to track numbers“ 5, 6, 7, 8, 9 ”. Further, the group management information provided in the sector 1 and the like in the user TOC area 200c is changed as shown in FIG. 5C in accordance with the grouping of the music pieces “Ha”, “Hb”, “Hh”, and “Hj”. That is, the group “GNg” is changed from the state constituted by the track number 1 to the state constituted by the track numbers 1 to 4. Further, the group “GNk” is changed from the state composed of track numbers 3 to 7 to the state composed of track numbers 5 to 9. Further, the information on the groups “GNh”, “GNm”, and “GNr” is deleted.
[0058]
FIG. 5D to FIG. 5F show a case where a music “Hk” that is not grouped is provided. As shown in FIG. 5D, the music “Hk” of track number 9 is provided, and the music “Ha”, “Hb”, “Hh”, and “Hp” are each one group “GNg”, “GNh”, “GNm”, “GNs”. If the music “Hc, Hd, He, Hf, Hg” is a single group “GNk”, the regroup editing process described above is performed, for example, as shown in FIG. 5E. The group “GNg” of the first song “Ha” is set as a group for collection, and by moving the songs “Hb”, “Hh”, “Hp” to this set group, one grouping is performed, and then grouping is performed. The music “Hk” that has not been performed is grouped into a group for collection.
[0059]
Here, when moving the music “Hb”, “Hh”, “Hp” and the music “Hk” to the collective group, the tracks of the music “Ha”, “Hb”, “Hh”, “Hp” and “Hk” to be grouped into one group. The information of sector 0 in the user TOC area 200c is changed so that the numbers are continuous. That is, the track number “8” is set to the track number “3” after the regroup editing process for the track in which the start address and end address of the music “Hh” are set. Similarly, the track number “10” is set to the track number “4” for the track in which the start address and the end address of the music “Hp” are set. Further, the track number “9” is set to the track number “5” for the track in which the start address and the end address of the music “Hk” are set.
[0060]
In addition, with the movement of the music “Hh”, “Hk”, and “Hp”, the tracks for which the start address and end address of the music “Hc, Hd, He, Hf, Hg” are set are track numbers “3, 4,”. The track numbers “6, 7, 8, 9, 10” are set to “5, 6, 7” after the regroup editing process. Further, the group management information provided in the sector 1 and the like in the user TOC area 200c is as shown in FIG. 5F in accordance with the grouping of the music “Ha”, “Hb”, “Hh”, “Hp”, and the music “Hk”. Change to That is, the group “GNg” is changed from the state constituted by the track number 1 to the state constituted by the track numbers 1 to 5. Further, the group “GNk” is changed from the state composed of track numbers 3 to 7 to the state composed of track numbers 6 to 10. Further, the information on the groups “GNh”, “GNm”, and “GNs” is deleted.
[0061]
In this way, songs in a group with one song or ungrouped songs can be combined into one group, so only one song recorded on the compact disc can be replaced while the compact disc is replaced sequentially. Even if dubbing is performed, the group function can be effectively utilized by performing the regrouping process.
[0062]
In the regroup editing process described above, the music of the group having one song and the music that is not grouped are moved to the group for collection, but the processing from step ST3 to step ST6 The process from step ST7 to step ST10 can be selected, and only the music of the group having one music is moved to the group for aggregation to be grouped into one group, or only the music not grouped is a group for aggregation It is also possible to make one group by moving to.
[0063]
In the above-described embodiment, the case of a stereo apparatus as the signal recording / reproducing apparatus has been described. However, the signal recording / reproducing apparatus may be a mini disk apparatus that records and reproduces signals using a mini disk. Further, the signal reproduction medium and the signal recording / reproduction medium are not limited to a compact disk or a mini disk, but may be a rewritable optical disk or the like. Furthermore, the content to be dubbed is not limited to audio content, but may of course be video content.
[0064]
【The invention's effect】
According to the present invention, when a plurality of groups having a single track number are detected based on the additional information read from the recording medium when the predetermined operation setting is made by the operation setting means, Change the track to move to one of the detected multiple groups as a group for collection, and delete the information of the group whose track number is 0 as a result, If an ungrouped track is detected after a change to move to a collective group, a change is made to move this track to the collective group. Then, by controlling the recording / reproducing means, the changed additional information is written back to the recording medium. Therefore, when recording a content signal, even if a group with one track or an ungrouped track is provided, a predetermined operation setting is performed by the operation setting means, and these tracks are set to 1 Since it can be a group, the group function can be used effectively.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a configuration of a stereo device.
FIG. 2 is a diagram showing an area configuration of a mini-disc.
FIG. 3 is a diagram for explaining music grouping and group management information;
FIG. 4 is a flowchart showing a regroup editing process.
FIG. 5 is a diagram illustrating a group state before and after a regroup editing process.
[Explanation of symbols]
21, 41 Spindle motor section
23, 43 Optical pickup section
24, 44 RF amplifier
25, 45 Servo controller
26,46 driver
27, 47 Thread motor section
30, 50 signal processor
31, 54 D / A converter
33 Disc switching part
35 CD controller
42 Magnetic head
48 Decoder part
51 Memory controller
52 Memory for earthquake resistance
53 Compression / decompression processor
55 A / D converter
58 Recording amplifier
60 Mini-disc controller
61 Work memory
80 Signal selection / conversion processing unit
90 System controller
91 Operation unit
92 Display
100 compact disc
200 Mini Disc

Claims (2)

Recording / reproducing means for recording / reproducing a signal using a recording medium on which a content signal, information for managing the content signal in units of tracks, and additional information having information for grouping the content signals in units of tracks are recorded When,
Control means for controlling the operation of the recording / reproducing means;
Operation setting means for setting the operation of the control means,
In the control unit, when a plurality of groups having a single track number are detected based on the additional information read from the recording medium when a predetermined operation setting is made by the operation setting unit, Then, these tracks are changed so that one of a plurality of detected groups is moved to a group for collection, and as a result, the information of the group whose number of tracks becomes 0 is deleted and moved to the group for collection. If a track that is not grouped is detected after the change to be performed, the additional information is changed to move this track to the group for collection, and the recording / reproducing means is controlled to change the post-change The additional information is written back to the recording medium. 2. The signal recording / reproducing apparatus according to claim 1, wherein the group for collection is a first group among the plurality of detected groups.

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