JP2000173250A - Program search information recording method and optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily record a program search corresponding to recorded contents. SOLUTION: A mark is set in a step ST1 during the start of a recording of audio signals and the mark to be set next is determined in a step ST2. If an intermusic is detected by steps ST3 to ST4, a flag is made into an 'Fa' in a step ST6 to set a mark. When it is discriminated that prescribed time Tb is passed from the mark setting in a step ST7, the flag is made into an 'Fb' in a step ST8 to set a mark. During a recording of the audio signals or after a completion of the recording, a selection is made to use either one of the mark, that indicates an intermusic or the intermusic mark, and the mark, that is made every time the time Tb is passed, in accordance with the recorded contents. A mark is selected using a flag and a program search information is generated from the mark and the corresponding signal recording position information and the information is recorded on an optical disk. Thus, a program searching for recorded audio signals is conducted in accordance with the recorded contents using the information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cue information recording method and an optical disk apparatus. Specifically, when recording an audio signal on an optical disc, a cueing mark is set when any of a plurality of conditions is satisfied, and signal recording position information corresponding to the set mark is generated.
During the recording of the audio signal or at the end of the recording, it is possible to select a condition from a plurality of conditions. From the mark satisfying the selected condition and the recording position information corresponding to the mark, the head of the audio signal recorded on the recording medium is determined. By generating cueing information for performing cueing and recording the cueing information on a recording medium, cueing information corresponding to the recorded content can be recorded on an optical disc.

[0002]

2. Description of the Related Art In a conventional optical disk device, for example, a mini disk device, not only a signal such as a music piece is recorded on a mini disk, but also a mark (track number) for cueing the music piece is set. The signal recording position information (information indicating the recording position of the audio signal) corresponding to the mark and the mark can be recorded on the mini-disc as the cueing information. For this reason,
By using marks when playing music or the like recorded on the mini-disc, it is possible to easily play a desired music or the like based on signal recording position information corresponding to the designated mark.

[0003] When a mark is set and recorded on a mini-disc, a method of automatically setting a mark by detecting a silent section longer than a predetermined time between music pieces, ie, a predetermined time, A method of automatically setting a mark every time is used.

[0004]

By the way, when a method of detecting a silent portion longer than a predetermined time and automatically setting a mark and recording cue information based on the set mark is selected. For example, when a broadcast program is recorded, if music and conversation are continuous, only a mark “1” is set at the recording start position as shown in FIG. 8A.
A mark may not be set in the middle of a broadcast program. In such a case, a broadcast program recorded by specifying a position requiring cueing as shown in FIG. 8B is divided, and a mark “2” is placed at the specified position as shown in FIG. 8C. Additional processing must be performed. Also,
When a plurality of cue positions are provided, it is necessary to perform a process of sequentially dividing a recorded broadcast program and adding a mark.

When a method of automatically setting a mark every time a predetermined time elapses and recording the cue information based on the set mark is selected, for example, when music music is recorded, as shown in FIG. , Recorded music tunes PA, P
Mark "1" every time the predetermined time Tk elapses, regardless of B or PC
“2” and “3” are set. In such a case, FIG.
As shown in B, the start position of the music piece PB is designated to perform division, and a mark “2” is added. Since the mark "2" is added, the marks "2" and "3" set in the middle of the music pieces PB and PC are automatically updated to the marks "3" and "4". Thereafter, since the mark "3" is set in the middle of the music piece PB as shown in FIG. 9C, the process of deleting the mark "3" and combining the divided music piece PB as one music piece. Must be done. Also, if the process of changing the mark “3” is not performed on the music song PC, the music song P using the mark is used.
B, PC cannot be searched.

As described above, unless the mark setting method is appropriately selected in accordance with the recorded contents, the cueing at a desired position cannot be easily performed using the cueing information. Also,
To change the mark so that the desired position can be found, the complicated operation is required as described above, and the mark cannot be easily changed.

In view of the above, the present invention provides a cueing information recording method and an optical disk apparatus that can easily record cueing information according to recorded contents.

[0008]

According to the mark setting method of the present invention, when recording an audio signal on a recording medium, when any one of a plurality of conditions is satisfied, the cue of the recorded audio signal is performed. For the mark, generate signal recording position information corresponding to the set mark, select a condition from a plurality of conditions, and select a mark satisfying the selected condition and the signal recording position information corresponding to the mark. Cueing information for cueing the audio signal recorded on the recording medium is generated and recorded on the recording medium, and conditions can be selected during recording of the audio signal or at the end of recording. is there.

[0009] The optical disc apparatus further includes a signal recording means for recording a signal on the optical disc, a silence detecting means for detecting a silence portion from the audio signal, and a sound recording means for recording the sound recorded on the optical disc when any of a plurality of conditions is satisfied. A mark for signal cueing is set, and signal recording position information corresponding to the set mark is generated. From the mark and the signal recording position information corresponding to the mark, the head of the audio signal recorded on the optical disc is determined. Cueing information generating means for generating cueing information for performing cueing, and selecting means for selecting a condition from a plurality of conditions, wherein the selecting means selects the condition during recording of an audio signal or at the end of recording. The information generation means generates cueing information from a mark satisfying the condition selected by the selection means and signal recording position information corresponding to the mark, and outputs the cue information. The means, the cue information generated by the information generating means is for recording on the optical disk.

In the present invention, when recording an audio signal on an optical disk, a mark for cueing is set when any of a plurality of conditions is satisfied. For example, a mark is set when the beginning of the next music song or the like is determined after a silent portion between songs is detected, and the mark is set every predetermined time after the mark is set. Done. Also, signal recording position information of the audio signal is generated corresponding to the set mark. Here, during the recording of the audio signal or at the end of the recording, a condition can be selected from a plurality of conditions, and a mark satisfying the condition selected from the set marks and a signal recording position information corresponding to the mark are obtained. Then, cueing information for cueing the audio signal recorded on the optical disc is generated and recorded on the optical disc.

[0011]

Next, the present invention will be described in detail with reference to the drawings. FIG. 1 shows the configuration of a mini disk. In FIG. 1, a clamping plate 10a for holding a disc is provided at the center of the mini-disc 10. A lead-in area 10b is formed on the innermost periphery of the laser beam irradiation surface side of the mini-disc 10, and TOC (Table of Contents) information such as disc information, track information, and recording information is recorded. In a recordable / reproducible disc, the lead-in area 10
A user TOC area 10c is formed on the outer peripheral side of b.
In the user TOC area 10c, additional information such as music tunes recorded in a program area 10d described later is recorded. For example, information indicating the recording position of each song and a cueing mark (song number) are recorded in the user TOC area 10c in a corresponding manner.

A program area 10d is formed on the outer peripheral side of the user TOC area 10c.
A signal such as a music tune is recorded in 0d. Note that a lead-out area 10e is formed on the outer peripheral side of the program area.

FIG. 2 shows a configuration of a mini-disc device. A mini-disc 10 is driven to rotate by a spindle motor 11, and a recording head 12 is arranged on one surface (upper surface in the figure) and on a lower surface. Optical pickup 13
Is arranged.

An analog audio input signal Sin supplied from the outside to the audio signal input terminal 15 is converted from an analog signal into, for example, 16-bit digital audio input data Din by an A / D converter 16 and becomes a first signal. Processing unit 1
7 is supplied. The audio input signal Sin is also supplied to the audio signal detection unit 27.

The first signal processor 17 converts the audio input data Din supplied from the A / D converter 16 into ATRAC (A
Perform band compression processing (encoding processing) using daptive transform Acoustic coding). The audio input data Din which has been subjected to the band compression processing is supplied as recording audio data WSD to the second signal processing unit 20 via the memory controller 18 provided for vibration proof. The memory controller 18 will be described later.

In the second signal processing unit 20, in order to convert the compressed recording audio data WSD from the first signal processing unit 17 into a signal suitable for recording on a disc, an EFM (Eight (Eight) signal is used). to Fourteen Modulation) modulation and CIRC (Cross Interleave Reed-Solomon Cod
The encoder for e) performs an encoding process for error correction. A signal obtained by performing the encoding process for the EFM modulation and the error correction process is supplied to the recording head 12 via the recording amplifier 21 as the recording data WD.

The recording head 12 generates a magnetic field based on the supplied recording data WD, and irradiates a laser beam of a predetermined power to the mini-disc 10 from the optical pickup 13 so that the recording data WD is applied to the mini-disc 10 magneto-optically. Be recorded.

In the optical pickup 13, the mini disk 1
When the laser light is applied to the RF amplifier unit 2, a read signal RS based on the reflected light from the mini-disc 10 is generated and
Feed to 2.

In the RF amplifier section 22, the optical pickup 1
3 on the basis of the read signal RS supplied from
Is generated and supplied to the second signal processing unit 20. Further, a focus error signal FE and a tracking error signal TE are generated based on the read signal RS and supplied to the servo controller 25.

The second signal processing section 20 performs error detection and correction and demodulation processing of the reproduction data RD supplied from the RF amplifier section 22. A signal obtained by performing the error detection and correction and the demodulation processing is supplied to the memory controller 18 for earthquake resistance as reproduced audio data RDB.

The memory controller 18 is for ensuring that the reproduced audio data RDB is output correctly without fluctuation in the time axis even when the disk vibrates during reproduction. Therefore, the memory controller 18 is provided with a memory unit 19 for temporarily storing the reproduced audio data RDB.

The reproduced audio data RDB, which has been subjected to the seismic processing by the memory controller 18 using the memory unit 19 and has a uniform time axis, is supplied to the first signal processing unit 17.

The first signal processing unit 17 performs a process of expanding the reproduced audio data RDB from the memory controller 18. The data signal obtained by performing this decompression processing is supplied to the D / A conversion unit 23 as audio output data Dout.

The D / A converter 23 converts the audio output data Dout supplied from the first signal processor 17 into an analog audio output signal Sout and supplies it to the audio signal output terminal 24.

In the servo control unit 25, the RF amplifier unit 22
Drive signal DRF and tracking drive signal DRT are generated based on the focus error signal FE and the tracking error signal TE supplied from the optical pickup 1
Supply 3 Based on the focus drive signal DRF and the tracking drive signal DRT, the position of the objective lens of the optical pickup 13 is adjusted and focus servo and tracking servo are performed. The servo control unit 25 generates a motor drive signal DRM for rotating the mini-disc 10 at a predetermined speed by the spindle motor 11. Further, a sled operation of moving the optical pickup 13 in the radial direction of the mini disc 10 is performed by the servo control unit 25. The servo controller 25 and the above-described memory controller 18 and the second signal processor 2
The operation of 0 is controlled by a control signal CTM from the system controller 30.

In the audio signal detecting section 27, the audio input signal S
A silent portion is detected based on the signal level of in, and a detection signal ADT indicating a detection result is generated. The generated detection signal ADT is supplied to the system controller 30.

An operation unit 31 and a display unit 32 are provided in a system controller 30 constituted by using a microcomputer or the like.
The system controller 30 includes an operation signal MT from the operation unit 31 and an audio signal detection unit 2.
7 generates a control signal CTM based on the detection signal ADT. Further, the TOC information of the lead-in area 10b and the information DTC of the user TOC area 10c read from the mini disk 10 are stored in a memory (not shown) of the system controller 30 or the above-described memory unit 19, and the information DTC is stored. The control signal CTM is also generated based on. Further, a display signal SDP for displaying the information DTC and the operation state of the mini disk device on the display unit 32 is generated. The system controller 30 also generates cueing information DTM to be written in the user TOC area 10c of the mini disc 10.

Next, the mark setting operation in the system controller 30 will be described with reference to the flowchart of FIG. At the start of the recording operation of the audio input signal Sin in step ST1, a mark "M" is set corresponding to the recording start position of the audio input signal Sin, and the process proceeds to step ST2.

In step ST2, a mark to be set next is determined. For example, a value “M + 1” obtained by adding “1” to “M” is set as a mark “M” to be set next, and the process proceeds to step ST3.

In step ST3, the audio signal detector 27
It is determined whether or not a silent portion has been detected from the voice input signal Sin. If a silent portion has been detected, the process proceeds to step ST4, and if a silent portion has not been detected, the process proceeds to step ST7.

In step ST4, it is determined whether or not the silent portion has continued for a first predetermined time Ta (for example, 2 seconds). And proceeds to step ST5, and if it has not continued for the predetermined time Ta or more, the process proceeds to step S5.
Proceed to T7.

In step ST5, it is determined whether or not the silent portion has been terminated and a new music piece or the like has been started. Here, when the audio signal detection unit 27 stops detecting a silent portion from the audio input signal Sin, it is determined that a new music tune or the like has been newly started, and the process proceeds to step ST6.
Proceed to T7.

In step ST6, the mark "M" is automatically set in accordance with the recording position determined to have started a new music piece or the like in step ST5, and the flag is set to "Fa". Return to ST2.

When the process proceeds from step ST3, step ST4, step ST5 to step ST7, the process proceeds to step ST7.
Then, the second predetermined time Tb after the mark is set
It is determined whether or not more than (for example, 5 minutes) has elapsed.
Here, when the predetermined time Tb or more has elapsed, the process proceeds to step ST8, and when the predetermined time Tb has not elapsed, the process returns to step ST3.

In step ST8, the mark "M" is automatically set corresponding to the recording position determined to have passed the predetermined time Tb or more in step ST7, and the flag is set to "Fb". Return to ST2.

When the mark is automatically set in this manner, the memory 30a of the system controller 30
Then, the recording position information of the signal between the mark, the flag and the mark is stored correspondingly.

Thereafter, when the recording operation of the audio input signal Sin is completed, the set mark and the cueing information corresponding to the recording position information of a music piece or the like whose recording start position is the position indicated by this mark. The DTM is automatically recorded in the user TOC area 10c.

As described above, when the predetermined time Ta is set as the time for detecting the interval between music pieces, and the predetermined time Tb is set according to the performance time of each music piece recorded on the mini-disc, it is possible to set The mark can be recorded automatically at every predetermined time Tb even if a music tune having a long playing time or a broadcast program without a silent part is recorded.

For example, as shown in FIG. 4, the sound signals of the music pieces P1, P2, and P4 whose playing time is shorter than the predetermined time Tb and the sound signal of the music piece P3 that is longer than the predetermined time Tb are provided with silence portions for a predetermined time Ta. Then, a mark "1" for cueing is automatically set at the beginning of the music piece P1 to be recorded first, and the flag of this mark "1" is set to "Fa".

When the music piece P1 ends and a silent portion longer than a predetermined time Ta is detected, the mark "2" is automatically set at the head of the next music piece P2, and the flag of the mark "2" is set. Becomes “Fa”. Also, recording position information “R1” indicating a position where a signal is recorded from the start of recording until immediately before the mark “2” is automatically set is generated corresponding to the mark “1”. The set flag “Fa”, mark “1”, and generated recording position information “R1”
As shown in FIG. 5, the data is stored in the memory 30a.

When the music piece P2 is completed and a silent portion longer than a predetermined time Ta is detected, the mark "3" is automatically set at the head of the next music piece P3 and the flag of the mark "3" is set. Becomes “Fa”. Further, recording position information “R2” indicating a position where a signal is recorded from the time of setting the mark “2” to immediately before the mark “3” is automatically set is generated corresponding to the mark “2”. , A flag, a mark, and recording position information are stored in the memory 30a.

Here, since the playing time of the music piece P3 is longer than the predetermined time Tb, the mark "4" is automatically set after a predetermined time Tb has elapsed since the mark "3" was set. The flag of the mark “4” becomes “Fb”. Also, recording position information “R3” indicating a position where a signal is recorded from the time of setting the mark “3” to immediately before the mark “4” is automatically set is generated, and the flag, the mark, and the recording position information are stored. Stored in the memory 30a.

A predetermined time T after the mark "4" is set
After b, mark “5” is automatically set,
The flag of the mark “5” becomes “Fb”. Further, recording position information “R4” is generated, and the flag, the mark, and the recording position information are stored in the memory 30a.

Thereafter, the music piece P3 ends and a predetermined time T
When a silent portion equal to or more than a is detected, the mark "6" is automatically set at the head of the next music piece P4, and the flag of the mark "6" is set to "Fa". Further, recording position information “R5” is generated, and the flag, the mark, and the recording position information are stored in the memory 30a.

When the recording of the music piece P4 is completed, recording position information "R6" indicating the position where the signal from the time of setting the mark "6" to the end of the recording is generated, and the flag, the mark and the recording position Information is stored in the memory 30a. Further, a process of recording the mark and recording position information stored in the memory 30a in the user TOC area 10c of the mini disc 10 is performed.

FIG. 6 shows a process of recording a mark or recording position information in the user TOC area 10c. In step ST11, a mark selected by interrupt processing during recording of a music piece or after recording is completed. The recording mode is a mode that searches for the beginning of a song (hereinafter referred to as “track mode”
Is determined. Here, when the track mode is selected, the process proceeds to step ST12, and when the selected mark recording mode is not the track mode (hereinafter, referred to as "intelligent mode"), the process proceeds to step ST13.

In step ST12, a mark whose flag is set to "Fa" is selected from the memory 30c, the mark is changed so that the mark has a continuous value, and a mark for the track mode is generated. For example, in the case shown in FIG. 5, marks “1” to “3” and “6” are selected, and mark “6” is changed to mark “4” so that the marks have continuous values. A track mode mark is generated as shown in FIG. The values shown in parentheses are the values before the mark change processing.

In step ST12, the recording position information for the track mode is generated by combining the recording position information with the flag "Fb" with the recording position information with the flag "Fa". Here, when combining the recording position information, it is combined with the recording position information corresponding to the mark whose flag is set to “Fa” immediately before the mark whose flag is set to “Fb”. For example, in the case shown in FIG.
Since “5” is the flag “Fb”, the marks “4” and “5” are added to the recording position information “R3” corresponding to the mark “3” for which the flag was previously set as “Fa”. The corresponding recording position information "R4" and "R5" are combined to generate track mode recording position information as shown in FIG. When the mark and the recording position information for the track mode are generated in this way, the mark and the recording position information are recorded as the cue information DTM in the user TOC area 10c of the mini disc 10, and the recording of the audio signal is performed. Completed.

In step ST13, as shown in FIG. 5, the marks of the flags "Fa" and "Fb" stored in the memory 30c and the recording position information are retrieved into the cue information DT.
M is recorded in the user TOC area 10c, and the recording of the audio signal is completed.

As described above, the mark recording mode can be selected to the track mode or the intelligent mode during or after the recording of the music piece or the like.
For example, as shown in FIG. 4, when a music piece is recorded, when the track mode is selected, marks "1" to "1" are displayed.
By using "4", it is possible to easily perform the cueing of the music pieces P1 to P4. When the intelligent mode is selected, the marks "1" to "6" are used to not only search for the beginning of the music tunes P1 to P4, but also for the music tune P3 having a long playing time from the beginning of the music. Reproduction can also be easily performed from a position at each passage of time.

The mark recording mode is not limited to the track mode and the intelligent mode. For example, a time mode for setting a mark at a position every predetermined time from the start of recording may be provided. Here, in the time mode, a mark is automatically set at predetermined time intervals from the start of recording, a flag “Fc” different from the above-mentioned flag is set, and recording position information corresponding to the mark is stored in the memory 30a. . Here, when the time mode is selected, if the mark of the flag “Fc” and the recording position information corresponding to this mark are recorded in the user TOC area 10 c as the cue information DTM, the position is determined from the position every predetermined time from the start of recording. Playback can also be started.

As described above, according to the above-described embodiment,
Even if a mark setting method is not selected in advance, it is possible to select a mark that satisfies a condition to be used during recording of a music song or the like at the time of recording or at the end of recording, and to select a selected mark and this mark. The cueing information is generated from the position information based on the. Therefore, it is not necessary to add or change the mark because the setting method of the mark selected in advance is not appropriate for the recorded content, and the cue information according to the recorded content can be easily recorded.

In the above-described embodiment, the mini disk device is used as the optical disk device. However, the optical disk device can record the cue information and can reproduce the cue information using this cue information. It is needless to say that the device is not limited to the mini disk device.

[0054]

According to the present invention, when an audio signal is recorded on an optical disk, a cueing mark is set when any of a plurality of conditions is satisfied, and a mark corresponding to the set mark is set. The signal recording position information is generated, and the cue of the audio signal recorded on the recording medium is found from the mark satisfying the selected condition during the recording of the audio signal or at the end of the recording and the signal recording position information corresponding to the mark. The cueing information to be performed is generated and recorded on the optical disc.
Therefore, without preset how to record cue information, it is possible to record the cue information corresponding to the recording contents, desired position easily by utilizing the recorded cue information Of the audio signal can be performed.

Further, when the cue mark is determined to be not a silence part after a silent part longer than the first predetermined time is detected, and when the cue mark is set, the cue mark is set for the first predetermined time. Since the first predetermined time is set when the condition that the second predetermined time elapses is satisfied, by setting the first predetermined time as the time for music interval determination, the recorded content is a music song, a broadcast program, or the like. Depending on the position, it is possible to easily perform the cueing of the music tune or the cueing of the position after the lapse of the second predetermined time from the start of the broadcast program or the like.

[Brief description of the drawings]

FIG. 1 is a plan view of a mini disc.

FIG. 2 is a diagram showing a configuration of a mini disk device.

FIG. 3 is a flowchart for explaining a mark setting method.

FIG. 4 is a diagram showing a setting state of a mark.

FIG. 5 is a diagram showing information stored in a memory;

FIG. 6 is a flowchart illustrating a recording method of a mark and recording position information.

FIG. 7 is a diagram showing marks for a track mode and recording position information.

FIG. 8 is a diagram for explaining a method of adding a mark.

FIG. 9 is a diagram for explaining a method of replacing marks.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Mini disk 10c User TOC area 10d Program area 12 Recording head 13 Optical pickup 17 First signal processing part 18 Memory controller 19 Memory part 20 Second signal processing part 21 Recording amplifier 22 RF amplifier part 27 Audio signal detection part 30 System Controller 30a Memory

Claims (4)

[Claims] 1. When recording an audio signal on a recording medium, a mark for performing cueing of the audio signal after recording is set when any of a plurality of conditions is satisfied; And generating signal recording position information corresponding to the mark, selecting a condition from the plurality of conditions, and selecting the mark that satisfies the selected condition and the signal recording position information corresponding to the mark, the audio recorded on the recording medium. Cueing information for cueing a signal is generated and recorded on the recording medium, and the selection of the condition is enabled during or after the recording of the audio signal. Information recording method. 2. The method according to claim 1, wherein the plurality of conditions include: when a silent portion longer than a first predetermined time is detected, when it is determined that the portion is not a silent portion, and when the mark is set, the first predetermined time is determined. 2. The cueing information recording method according to claim 1, wherein a time when a second predetermined time longer than the time elapses. 3. A signal recording means for recording a signal on an optical disk; a silence detecting means for detecting a silent part from the audio signal; and a head of the audio signal recorded on the optical disk when any of a plurality of conditions is satisfied. A mark for recording is set, and signal recording position information corresponding to the set mark is generated. From the mark and the signal recording position information corresponding to the mark, a head of an audio signal recorded on the optical disc is generated. Cueing information generating means for generating cueing information for performing cueing; and selecting means for selecting a condition from the plurality of conditions, wherein the selecting means selects the condition during recording of the audio signal. Alternatively, it is enabled at the end of recording, and the information generation means starts with the mark satisfying the condition selected by the selection means and the signal recording position information corresponding to the mark. To generate information, said signal recording means, the optical disk apparatus characterized by recording a cue information generated by said information generating means on the optical disk. 4. A plurality of conditions under which a condition is selected by the selection means are as follows: when a silent portion longer than a first predetermined time is detected, it is determined that the portion is not a silent portion; 4. The optical disk device according to claim 3, wherein a time after a second predetermined time longer than the first predetermined time has elapsed.