JP2002329321A - Recorder and player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute automatic processing so as not to reproduce the track of a recording mistake when the recording mistake occurs during recording in a CD-R by a TAO. SOLUTION: During the recording of audio data in a CD-R, a laser power, various servos or the like is monitored to determine whether a recording is normal or not. When a recording state is judged to be not normal, a flag for setting a skip ID is set to 1, and stored in a memory corresponding to the tack number of the track. When the recording of the track to be recorded is finished, based on the content of the memory, information indicating the track number of the flag 1 is recorded as a skip ID in a PMA. The content of the PMA is recorded as TOC information during finalizing. By reproducing in a player compatible to the skip ID, based on the skip ID in the TOC information, control is executed to prevent reproducing of the track of abnormal recording.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for automatically skipping a portion of data which is continuously input to a recording medium, even if the recording fails and the continuity of the data is lost. And a recording device.

[0002]

2. Description of the Related Art In recent years, it has been compatible with a conventional CD (Compact Disc) in terms of characteristics and has been made capable of recording data.
The spread of CD-R (Compact Disc-Recordable) is remarkable.
In the CD-R, data is recorded by, for example, providing a dye layer on a reflection surface and changing the color of the dye by laser irradiation to form pits.

[0003] A CD-RW (CD-Rewritable) which can be rewritten by overwriting data using a phase change recording method.
Recording media called writable) are also becoming popular. Hereinafter, an example of a CD-R will be mainly described.

[0004] The layout of data common to CDs and CD-Rs will be schematically explained using the example of a CD. CD
Is accessed from the inner circumference side, lead-in from the inner circumference side,
Data areas are arranged in the order of data and lead-out.
The unit of the data part is called one track. For example, a CD-DA (CD-Digital Audi
In the case of o), generally, one track corresponds to one track. A session is composed of a combination of lead-in, data, and lead-out.

[0005] In the lead-in area, a TOC (Table Of Contents) in which information indicating the contents of the CD is stored is recorded. The TOC information recorded in the TOC is, for example, a CD.
In the case of -DA, it is composed of the number of music pieces recorded on the CD, track start position information, and the like. An area where data is recorded between the lead-in area and the lead-out area is called a PGA (Program Area).

As a structure peculiar to a CD-R, in addition to the existence of the above-mentioned area, a PCA (P
owerCalibration Area) and PMA (Program Memory A)
rea) are provided. The PCA is an area in which test writing is performed in order to adjust the laser intensity when writing data to a CD-R. The PMA is an area in which address information at the head and end of a written track is written when data is written by track-at-once, which will be described later.

The CD-R is provided with a pre-groove which is a guide groove for recording. Pregroove is
It slightly wobble, and contains address information at the time of recording. This is based on ATIP (Absolute Time In Pr
egroove).

When recording audio data on a CD-R, there are two recording methods: a disk-at-once (Disk-At-Once) method in which lead-in, data, and lead-out are written to a disk in a single stroke. There are two types, track at once (Track At Once), in which tracks are written to a disc one by one. In the track-at-once, the lead-out and the lead-in are written after the data is recorded. Therefore, the track can be additionally written until the lead-out and the lead-in are written and the session is closed.

The writing at the track-at-once is performed roughly as follows. When the writing of the data of the first track is completed, the obtained recording start and end times are written to the PMA together with the track number TNO based on the ATIP information. When the second track is written after the first track,
Similarly, the recording start and end times are set to the track number TN.
Written to PMA with O. When the writing of all the tracks is completed in this way, a lead-out is written, and subsequently, T based on the information written to the PMA.
OC information is created and a lead-in is written. In the track-at-once, the process of writing the lead-out, creating the TOC information based on the information of the PMA, and writing the lead-in is called finalization.

[0010]

By the way, audio CD recorders which can easily write audio data such as music on such a CD-R are becoming widespread. Here, by using this audio CD recorder, audio data is recorded on a recordable CD (CD-R, CD-RW) as described above by track-at-once using an audio track conforming to the CD-DA format. At this time, a case where recording of audio data to the PGA is not performed normally for some reason will be considered.

In such a case, the CD-R and the CD-RW are stipulated in the Orange Book, which defines the CD-R and CD-RW standards.
In order to ensure compatibility with the Red Book in which the DA standard is defined, continuity of recording in PGA is required. Therefore, when an abnormality is detected in the recording so that the recording does not become discontinuous, the recording is terminated. Thereafter, when the subsequent recording is restarted, it is necessary to add one track number and adopt a recording method in accordance with the linking rule.

The disc completed in this way is different from the state of the track originally intended by the user. In particular, when a CD-R that cannot rewrite recorded data is used, it is impossible in principle to perform editing work for subsequent correction, so that a disc is created as originally intended by the user. To do so, it is necessary to execute one of the following two methods.

The first method is to prepare a new unrecorded disc and re-record all tracks again. This method has a problem that a new disk must be prepared. In addition, since recording (recording of audio data) must be redone, it takes time.

A second method is a method using a skip function. The skip function will be schematically described. If a recording error occurs during recording, the PMA records that the track is a track to be skipped during reproduction. By creating TOC information based on the information recorded in the PMA when recording of all tracks is completed, skip information can be left on the disc.

In order to use the second method, it is necessary to search for a track that could not be normally recorded later and set a skip ID for the track. By doing so, it is possible to prevent the playback device corresponding to the skip function from playing back the track to which the skip ID is set. In the second method, it is necessary to search for a track that could not be recorded normally later,
For that purpose, there is a problem that the disc must be reproduced once.

Further, in the second method, in order to specify a skip track, it is necessary to record the information in the PMA. For this reason, the specification of the skip ID for specifying the skip track is generally performed before the above-mentioned finalizing operation and when the disc is recorded in the audio C
This has to be performed before taking out from the D recorder, which is not always convenient.

Accordingly, an object of the present invention is to automatically perform processing for preventing a track on which a recording error has occurred from being reproduced when a recording error occurs during recording on a CD-R at track-at-once. It is an object of the present invention to provide a recording device and a reproducing device which can be performed in an efficient manner.

[0018]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a recording apparatus for recording digitized program information, which is continuously inputted, on a recording medium. Determining means for determining whether or not the digitized program information is normally recorded on the recording medium; and digitizing program information continuously input by the determining means being normally recorded on the recording medium. When it is determined that the program information is not recorded correctly, it is determined that the program information is not recorded normally based on the program number stored in the storage unit that stores the program number of the program information that is determined not to be recorded normally. Recording means for recording a control signal for skipping programmed information in a management area of a recording medium A.

According to the present invention, there is provided a reproduction apparatus for reproducing a recording medium having a management area for recording a control signal for skipping program information for which recording has failed and a recording area on which program information is recorded. Reproducing means for reproducing the control signal recorded in the area and the program information recorded in the recording area, and preventing reproduction of the program information which failed in recording based on the control signal reproduced from the management area by the reproducing means. And a control means for controlling the reproduction means.

As described above, according to the first aspect of the present invention, it is determined whether or not the continuously input digitized program information is normally recorded on the recording medium, and the continuous program is determined based on the determination result. If it is determined that the digitized program information input as a result is not normally recorded on the recording medium, the program number of the program information determined to be not normally recorded is stored in the storage means, Based on the program number stored in the storage means, a control signal for skipping program information determined not to be recorded normally is recorded in the management area of the recording medium. It is possible to automatically create a recording medium in which a control signal for skipping program information determined not to be recorded is recorded in the management area.

According to a fourth aspect of the present invention, the control signal recorded in the management area and the program information recorded in the recording area are reproduced, and the recording fails based on the control signal reproduced from the management area. Since the program information is controlled so as not to be reproduced, even if the program information of which recording failed is recorded on the recording medium, the program information is controlled so as not to be reproduced.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below. First, to make it easier to understand,
The physical format of a recordable CD will be described. In the following, a recordable CD is a CD-R (Com
pact Disc-Recordable).

In a CD-R, a guide groove called a groove is provided in advance so that an operation such as tracking can be performed even in an unrecorded state (blank disk). The groove has ATI by FM modulation and biphase encoding.
Time information called P is recorded. Each area is defined on the surface of the CD-R disc based on the ATIP.

The ATIP has a maximum recordable time,
Information such as a recommended recording power and a disc application code is previously recorded on the disc.

FIG. 1 shows a CD-R defined as above.
2 shows the layout of each region from the cross-sectional direction. In FIG. 1, the radius is shown. As shown in the figure, in a CD-R having a diameter of approximately φ120, (maximum) φ4
In the range of 5 to (maximum) φ46, P
CA and PMA are provided. The (maximum) φ46 to (maximum) φ50 is a lead-in area, and the (maximum) φ50 to (maximum) φ116 is a recording area in which data can be recorded. This recording area is called a PGA (Program Area). The maximum value of the outer edge of the lead-out area is φ1
18 is set.

In FIG. 1, a region where data has already been recorded is exemplified by a black band. In this example, PCA
It can be seen that data has already been recorded in a part of the PMA area and a part of the data recording area.

Next, a procedure for recording data on a CD-R will be schematically described. As a recording method when writing audio data to a CD-R, as described above,
There are disc-at-once and track-at-once. The disc-at-once writes from the lead-in to the data and the lead-out to the disc in one stroke. In the disc-at-once, writing is performed in the order of lead-in, data, and lead-out from the inner circumference to the outer circumference of the disk. In this method, when writing data, all information to be recorded as TOC information, such as the total number of tracks to be recorded and the start and end times of each track, must be available.

On the other hand, the track-at-once method is a method of writing data on a disk one track at a time.
In the track-at-once, writing is performed in the order of data, lead-out, and lead-in. In this method, since the lead-out and the lead-in are written after the data, the data can be additionally written until the lead-out and the lead-in are written and the session is closed.

A write sequence in track-at-once will be schematically described. After writing the data (audio data) of the first track, consider adding the audio data of the second track without finalizing.

First, before recording of audio data is started, in order to perform proper recording, test recording is performed on the PCA while changing the laser output, and based on the result, the optimum laser output is obtained. Adjust so that is obtained. Thereafter, the audio data is recorded on the PGA.
The audio data of the first track is written to the PGA. At this time, based on the ATIP information, the recording start time and the end time are written to the PMA after the writing is completed. Next, the data of the second track is written after the first track. When the writing of the second track is completed, the recording start time and end time of the second track similarly read from the ATIP are written to the PMA. Here, the time indicates a relative time when data is recorded on the CD-R.

A predetermined linking rule and, if necessary, a pre-gap are placed between the first and second tracks.

After the writing of all the tracks is completed, the finalizing process is performed. That is, the lead-out is written from the outer edge of the PGA,
TOC information is created based on the information written in the MA, and is written in a lead-in area located on the inner circumference of the PGA. In this way, the recording of the audio CD disk conforming to the Red Book by the CD-R is completed.

FIG. 2 shows an example of the configuration of an audio CD recorder 1 applicable to the first embodiment. The audio CD recorder 1 converts an externally supplied analog audio signal into a digital audio signal, and converts the audio signal into a CD-R in a format conforming to the CD-DA format.
Can be recorded.

In the recording system, an externally supplied analog audio signal is input to a terminal 110. This analog audio signal is supplied from a terminal 110 to an A / D converter 111, converted into a digital audio signal, and supplied to a CD encoder 112.

On the other hand, a digital audio signal supplied from the outside is input to a terminal 140. This digital audio signal is input to the digital input
It is supplied to the D encoder 112. Digital input unit 1
At 41, for example, a digital audio signal supplied as serial data is converted into parallel data, and at the same time, an abnormality in the input data is detected. The result of detecting the abnormality is supplied to a microcontroller 120 described later.

The subcode data is supplied from the microcontroller 120 to be described later to the CD encoder 112. In the CD encoder 112, the digital audio signal is subjected to processing such as error correction coding and EFM (Eight to Fourteen Modulation) together with the subcode data, and performs recording on the CD-R 100 in conformity with the CD-DA format. Is encoded into a signal suitable for The output of the CD encoder 112 is
13 is supplied.

The CD encoder 112 decodes ATIP information from a reproduction signal supplied from an RF amplifier / RF processing unit 102, which will be described later, and extracts a synchronization signal from the reproduction signal. The ATIP information and the synchronization signal are supplied to the servo controller 130.

In the recording compensator 113, a predetermined pulse shaping process is applied to the output of the CD encoder 112 in order to stably record the pits formed by the EFM. The recording signal output from the recording compensating unit 113 is supplied to the optical pickup unit 101. The optical pickup unit 101 includes an objective lens 13a, a laser light source (not shown), and a light receiving unit (not shown) that receives laser light reflected from the CD-R 100.
Having. Although not shown, the optical pickup unit 101
Further includes a laser driver that modulates the supplied signal to drive the laser light source, and a conversion unit that converts the laser light received by the light receiving unit into an electric signal.

At the time of recording, the laser output of the laser light source is controlled to an intensity suitable for recording, the laser light source is modulated based on the recording signal supplied from the recording compensator 113, and the modulated laser light is emitted from the CD-R 100. The recording layer is irradiated. In the CD-R 100, predetermined pits are formed by the irradiated laser light, and recording of a recording signal is performed. At the time of reproduction, the laser output of the laser light source is controlled to an intensity suitable for reproduction, and the CD-R 100 is irradiated with laser light. This laser light is reflected by the CD-R 100, received by the light receiving unit, and converted into an electric signal.

In the reproducing system, a reproduced signal in which the laser beam received by the light receiving unit is converted into an electric signal is output from the optical pickup unit 101, and the RF amplifier / RF processing unit 10
2 is supplied. The reproduction signal is subjected to predetermined signal processing such as waveform shaping processing by the RF amplifier / RF processing unit 102.

The RF amplifier / RF processing unit 102 performs power monitoring of the laser light source, focus error detection and tracking error detection in the optical pickup unit 101 based on the supplied reproduction signal.
These monitoring and error detection are also performed during recording, and the monitoring results and error detection results are supplied to a microcontroller 120 described later.

The reproduced signal output from the RF amplifier / RF processing unit 102 is supplied to a CD decoder 103. The reproduced signal is demodulated by the CD decoder 103 to be a digital signal, and the error correction code is decoded to correct the error. The error-corrected digital audio signal is supplied to a D / A converter 104, converted into an analog audio signal, and led out to a terminal 105.

The CD decoder 103 also extracts subcode data from the reproduced signal. The extracted subcode data is stored in, for example, the microcontroller 12.
0 is supplied.

On the other hand, the loading motor drive 132
The driving of the loading motor 131 is controlled by the
-Loading and unloading of R100 are controlled. The drive of the spindle motor 11 is controlled by the spindle motor drive 133, and the rotation of the CD-R 100 is controlled. Also, the thread motor drive 134
Drives the thread motor 14, thereby controlling the position of the optical pickup unit 101, and performing feed control and focus tracking control of the optical pickup unit 101.

The loading motor drive 132, the spindle motor drive 133 and the sled motor drive 134 are controlled by the servo controller 130. For example, at the time of recording, the thread motor drive 134 is controlled based on the ATIP information supplied from the CD encoder 112, and the address is controlled. Also, C
Based on the synchronization signal supplied from the D encoder 112,
The spindle motor drive 133 is controlled by the servo controller 130, and the rotation of the spindle motor 11 is controlled.

The servo controller 130 operates in cooperation with the microcontroller 120. For example, based on a command supplied from the microcontroller 120 to the servo controller 130, the servo controller 13
0 for the loading motor drive 132 described above,
The spindle motor drive 133 and the sled motor drive 134 are controlled, whereby the start and end of the operations of the loading motor 131, the spindle motor 11, and the sled motor 14 are controlled.

The microcontroller 120 is composed of, for example, a microprocessor and controls each part of the audio CD recorder 1. Microcontroller 120
Is connected to the non-volatile memory 121, the display unit 122, and the memory 123.

The data supplied from the microcontroller 120 is stored in the nonvolatile memory 121. The stored data is read out according to an instruction from the microcontroller 120 and supplied to the microcontroller 120. Data is stored and read in the memory 123 in the same manner. The data stored in the memory 123 is, for example, when the power of the audio CD recorder 1 is turned off.
If it is set to FF, it disappears. The data stored in the nonvolatile memory 121 is retained even when the power is turned off.

The microcontroller 120 generates a display control signal based on the state of the audio CD recorder 1 and a signal from an input unit (not shown). This display control signal is, for example, an LCD (Liquid Crys
tal Display) and a predetermined display is provided.

In the above configuration, the unrecorded CD-R1
The process of recording an audio signal at 00 is schematically described. First, the loading motor drive 132
Control of the loading motor 131 by CD-
R100 is moved to a predetermined position, and CD-R100 is loaded in. Here, a recording command instructing recording in the microcontroller 120 is output based on, for example, an operation of the input unit by the user.

According to the recording command, various servos are established by the servo controller 130. And
The optical pickup unit 101 is moved to the PCA of the CD-R 100 by the sled motor 14 driven and controlled by the sled motor drive 134, and a calibration operation is performed. Calibration must be performed on a CD-
This is performed based on the ATIP information read from R100.

For example, the optical pickup unit 101 is moved to the PCA according to an instruction from the microcontroller 120, and the test writing on the CD-R 100 is performed. The test-written portion is reproduced by the optical pickup unit 101, and the recording laser power in the optical pickup unit 101 is determined based on the evaluation information based on the reproduction signal. Thus, the initial settings for recording are made.

Thereafter, the drive of the sled motor 14 is controlled by the sled motor drive 134, and the optical pickup unit 101 controls the CD-R to record the audio data.
It is moved to a position on the board of No. 100 and stands by at that position as a recording pause state.

On the other hand, an analog audio signal is supplied from a terminal 110, converted into a digital audio signal by an A / D converter 111, and supplied to a CD encoder 112. The digital audio signal is
The data is subjected to error correction encoding by the encoder 112, subjected to EFM, output, subjected to waveform shaping processing and the like by the recording compensation unit 113, and supplied to the optical pickup unit 101. At the same time, the above-described recording pause state is released, the drive of the sled motor 14 is controlled by the sled motor drive 134, and the optical pickup unit 101 is moved to a predetermined position of the PGA. Then, the laser light is modulated by the optical pickup unit 101 based on the supplied signal, and the modulated laser light is irradiated to the CD-R 100 via the objective lens 13a in a predetermined manner. In this manner, audio data as program information is recorded on the CD-R 100.

At the time of recording, a sampling pulse of an RF signal is supplied from the CD encoder 112 to the RF amplifier / RF processing unit 102. In the RF amplifier / RF processing unit 102, a reproduced signal in which a pit immediately after recording is reproduced in the optical pickup unit 101 is monitored based on the supplied sampling pulse. Based on this monitoring result, a well-known Running OPC (Running OPC)
Continuous fine adjustment of the recording laser power is performed using a method called Optimum Power Control.

When the recording of all audio data to be recorded is completed, T
OC information is written, and finalization processing is performed.

The laser power information monitored during the recording operation and the error detection results such as focus and tracking during the recording operation are supplied to the microcontroller 120. When the audio signal is input from the terminal 140 as a digital audio signal, an abnormality detection signal indicating whether or not the input data has an abnormality is supplied to the microcontroller 120.

According to the present invention, it is determined that the track on which an abnormality has been detected during recording is not normally recorded, and the Skip ID corresponding to the track is determined.
(Skip ID) is set and stored in the memory, and the operation of writing the skip ID stored in the memory to the PMA is performed without user operation. As a result, the C that has been recorded including a track different from the user's intention
When the D-R 100 is reproduced, the track can be prevented from being reproduced.

The skip ID can be described as an item in the subcode Q channel of the PMA. FIG.
Shows the structure of one subcode frame of the subcode Q channel of PMA. In the PMA subcode Q channel, in addition to the track number TNO, the start time and end time of the track, a parity bit for data check, and any kind of information called ADR, It
A value indicating whether the data is stored as em is stored.

Item is assigned to the subcode Q channel of the PMA.
The information that can be recorded as m is the following six items distinguished by ADR. ADR = 1: TOC Item ADR = 2: Disc Identification
Item ADR = 3: Skip Track Item ADR = 4: Unskip Item ADR = 5: Skip Time Interval
Item ADR = 6: Unskip Time Interval
l Item

Of these, ADR = 1 is the above-mentioned temporary TOC information and is essential. Also, ADR
= 2 to 6 are optional. Further, ADR = 4
And 6 are reserved in the CD-RW. Each Item indicated by ADR = 1 to 6
Can be recorded as much as the recording capacity of the PMA allows.

By setting ADR = 3, the track number TNO of the track to be skipped at the time of reproduction (hereinafter referred to as a skip track) can be designated as the skip ID. The skip ID indicating the skip track is “MIN” or “MIN” in the subcode Q channel of the PMA.
"SEC", "FRAME", "PMIN", "PSE"
"C" and "PFRAME" are used, one track is allocated to each item, and six tracks can be designated for one subcode frame.

FIG. 4 is a flowchart showing an example of processing for automatically setting a skip ID. First, in the first step S10, the initial setting for recording is performed as described above, and the value of the skip ID setting flag indicating that there is an intention to set the skip ID (skipID) is set to "0" to initialize the initial setting. Become The skip ID setting flag is stored in the memory 123, for example.

After the initialization for recording and the initialization of the skip ID setting flag are completed, in step S11, the optical pickup unit 101 is moved to the recording position, and the recording (REC) pause state is set. (Step S).
12 and S13).

When recording is started, in step S14,
It is determined whether the recording state is normal. This determination is made based on the laser power information monitored during the recording operation and the error detection result such as focus and tracking during the recording operation, as described above.
20. When the audio signal is input as digital audio data, the determination is further made based on an abnormality detection signal indicating whether or not the input data has an abnormality. When it is determined that at least one of these is abnormal, it is determined that the recording state is not normal.

If it is determined in step S14 that the recording state is normal, the process proceeds to step S15, and it is determined whether or not the recording of the track has been completed. If not, the process returns to step S14. And the recording state is monitored. If it is determined in step S15 that the recording of the track has been completed, the process proceeds to step S17.

On the other hand, if it is determined in step S14 that the recording state is not normal, the process proceeds to step S16. In step S16, the value of the skip ID setting flag is “1” indicating that recording is not normal.
Is set to The skip ID setting flag is stored in the memory 123 in association with the track number TNO of the track for which the recording state is determined to be abnormal as shown in an example in FIG.

FIG. 5 shows an example in which a flag is set to “0” and stored in the memory 123 for a track whose recording state is normal. Not limited to this example, the memory 123 stores only the track where the abnormality is detected,
The flag and the track number TNO may be stored. Only the track number TNO in which an abnormality has been detected may be stored in the memory 123.

When the flag is set in step S16, the processing shifts to step S17. Step S17
Then, the recording of the track is ended, and a predetermined end process is performed. That is, based on the ATIP information, the recording start and end times and the track number TNO
A is written.

When the end processing of step S17 is performed,
The processing shifts to step S18, and it is determined whether or not the recording of the track is continuously performed. When recording of a track is subsequently performed, the process returns to step S11, and the next track is recorded according to the above-described processing of steps S11 to S17. At this time, although not shown, a predetermined linking rule and a pre-gap or the like are placed at a portion connected to the immediately preceding track, if necessary.

Then, as described above, it is determined whether or not the recording state is normal.
The setting flag is set to “1”, and this flag is associated with the track number TNO of the track, and
23 and stored.

On the other hand, if it is determined in step S18 that the recording of the track is not to be continued, the process proceeds to step S19. In step S19, the skip ID setting flag and the track number TNO stored in the memory 123 are stored in the microcontroller 120.
It is determined whether or not there is a skip ID setting flag whose value is “1”.

If it is determined in step S19 that there is no flag having a value of "1", it is determined that all recording has been normally performed, and a series of processing is terminated.

On the other hand, if it is determined in step S19 that there is a flag whose value is "1", the process proceeds to step S20.
Move to In step S20, the thread motor drive 13 is controlled based on the instruction from the microcontroller 120.
The drive of the sled motor 14 is controlled by 4 to move the optical pickup unit 101 to the PMA.

Then, in the next step S21, the skip ID whose value is "1" in step S19 described above.
A track ID is set corresponding to the setting flag, and the set skip ID is recorded in the PMA. That is,
ADR = 3 in the PMA subcode Q channel,
The value corresponding to the track number TNO of the track whose skip ID setting flag is “1” is “MIN”, “SE”
For "C", "FRAME", "PMIN", "PSEC", and "PFRAME", they are written as control signals for designating skip tracks. For example, if tracks with track numbers TNO “02” and “03” are not recorded normally, ADR = 3, MIN = 0
2. SEC = 03. "FRAME", "PMI
“N”, “PSEC”, and “PFRAME” each have a value of “00”.

It should be noted that if the number of tracks exceeding
If the D setting flag is “1”, the PMA
Another subcode frame in the subcode Q channel is further used.

In this example, the subcode frames in which skip IDs are recorded have the same contents and are written into the PMA five times each.

In the flowchart of FIG.
Although the process up to recording is automated, this is not limited to this example. Since the amount of information that can be recorded on the PMA is limited, a means for knowing the track number for which the skip ID setting flag is set when audio data is completely recorded on the CD-R 100 is provided, and the CD-R is ejected. Until the information of the skip ID setting flag is stored in the memory 123
And stored in the microcontroller 120. When the CD-R 100 is ejected, PMA is performed based on the contents stored in the memory 123.
Can be recorded.

Next, a second embodiment of the present invention will be described. The second embodiment is an example in which, when an abnormality is detected at the time of recording and a skip ID is set, a recovery recording process for re-recording the track on which the abnormality is detected is performed. In the second embodiment, the audio CD recorder 1 according to the first embodiment can be applied, and processing such as setting of a skip ID is similar to that of the first embodiment. Therefore, a detailed description of these will be omitted.

When a playback device for supplying an audio signal to the audio CD recorder 1 can be controlled synchronously by the audio CD recorder 1, a skip ID is set and the recording of the interrupted track is performed again. It can be performed.

For example, a CD player and an audio CD recorder are incorporated in one housing, and audio data reproduced by the CD player is directly converted to an audio C
This recovery recording process can be performed when the present invention is applied to a so-called double deck or the like in which recording can be performed on a CD-R on the D recorder side. Of course, independent audio CD recorders and CD players are connected by predetermined control lines, and the audio CD
The second embodiment can be applied to a system in which the D player can be controlled.

FIG. 6 schematically shows a track arrangement when the audio CD recorder 1 controls the reproducing side to perform the recovery recording process. Here, it is assumed that an abnormality is detected at the position of “Fail” in the figure while recording the third track, and that the left side is the center direction of the CD-R 100.

FIG. 6A shows an example in which recovery recording processing is performed from a position immediately after an abnormality is detected during recording. In the case of FIG. 6A, the third track in which an abnormality is detected is set as a skip track, a skip ID is set, and the reproduction source C
The third track and subsequent tracks in D are the fourth track of the CD-R100.
It is recorded sequentially from the track. According to the method of FIG. 6A, the track order of the CD-R 100 subjected to the recovery recording processing conforms to the original CD.

FIG. 6B shows an example of a recovery recording process when the CD-R 100 on which audio data is recorded is once loaded out of the audio CD recorder 1 and the CD-R 100 is loaded in the audio CD recorder 1 again. is there. In the case of FIG. 6B, if an abnormality is detected during the recording of the third track, the recording of that track is stopped, and the recording of the next track is started from that position. In this example, once, the CD-R1
00 is ejected from the audio CD recorder 1,
Thereafter, the CD-R 100 is reloaded, and a recovery recording process is performed on the third track for which an abnormality has been detected and recording has been stopped. Therefore, the third track to be subjected to the recovery recording process is added to the last track recorded before the ejection.

FIG. 7 is a flowchart of an example of the recovery recording process. Note that the audio CD recorder 1
It is assumed that it has a communication interface (not shown) and can control a reproduction operation by a reproduction device having a corresponding communication interface under the control of the microcontroller 120. For example, when the playback device is a CD player, the audio CD recorder 1 can control the playback of the CD player for each track.

In the first step S30, the CD-R currently loaded in the audio CD recorder 1
It is determined whether 100 is once ejected. If you are loading CD-R10
If 0 is recorded from the state of the unrecorded disc and it is determined that the recording has not been ejected from the audio CD recorder 1 until the present time, the process proceeds to step S33, and the skip ID setting stored in the memory 123 is performed. The read flag and the corresponding track number are read. When the flag and the track number are read from the memory 123, the process proceeds to step S34.

On the other hand, in step S30, the CD-R currently loaded on the audio CD recorder 1 is read.
If 100 is determined to have been ejected and loaded in again, the process proceeds to step S31.
Move to In step S31, the CD-R 100
It is determined whether the finalization process has been completed. If the finalizing process has been completed, a series of processes is completed.

In step S31, the CD-R1
If it is determined that the finalization process for 00 has not been completed, the process proceeds to step S32. In step S32, the PMA of the CD-R 100 is reproduced, and a control signal indicating a skip track recorded with ADR = 3 is read. Then, the process proceeds to step S34.
Move to

Step S34 is the same as step S3 described above.
2 based on the information reproduced from the PMA or the information read from the memory 123 in step S33, the track number (Track N) set as the skip ID.
o. ) Is extracted. Then, in the next step S35,
The extracted track number is displayed on the display unit 122 in a predetermined manner.

FIG. 8 shows an example of the display on the display unit 122 at this time. Tracks recorded on the CD-R 100 are listed and displayed in track number order. If song name data for each track is recorded in the nonvolatile memory 121 or the memory 123 in association with the track number, those are also displayed. Tracks for which an error was detected during recording and a skip ID was set are displayed on the display 20.
As shown by 0, the display is such that it can be distinguished from a normally recorded track. For example, when the line of the track is highlighted and music title data is input, that part is blank. The user selects the display unit 122
On the basis of this display, a track on which the recovery recording process is to be performed can be selected using, for example, an input unit (not shown).

In the next step S36, at the time of the recovery recording process, it is determined whether or not the CD-R 100 has enough free space to write the audio data to be subjected to the recovery recording process. The free space of the CD-R 100 can be known, for example, based on the start and end times of each track in the temporary TOC information recorded in the PMA of the CD-R 100. If it is determined that there is not enough capacity, a series of processing ends.

On the other hand, in step S36, the CD-R1
If it is determined at 00 that there is enough free space to perform the recovery recording process, the process proceeds to step S3.
7 is performed. In step S37, the audio CD
The recorder 1 controls a reproducing device such as a CD player, and reproduces a track instructed to perform a recovery recording process. The reproduced audio signal is supplied to the audio CD recorder 1, recorded on the CD-R 100 as described above, and synchronized with the audio CD recorder 1 and the CD player. When the reproduction of the track ends, for example, the CD player notifies the audio CD recorder 1 of the end, and the recording of the audio data in the audio CD recorder 1 ends.

FIG. 9 shows a CD-ROM with a skip ID set.
It is a flow chart which shows an example processing at the time of reproducing R100. Here, the CD-R 100 is an audio C
It is assumed that the data is reproduced by the D recorder 1. First, in the first step S40, it is determined whether the CD-R 100 loaded into the audio CD recorder 1 has been finalized. For example, CD-R
By examining the 100 lead-in areas, it is possible to know whether or not the finalization processing has been performed.

If it is determined in step S40 that the CD-R1
If it is determined that 00 has not been finalized, the process proceeds to step S41. Step S41
Then, PMA is reproduced from the CD-R 100, and AD
The skip ID recorded with R = 3 is read.

On the other hand, if it is determined in step S40 that the finalizing process has been performed, the process proceeds to step S42. In step S42, the TOC is reproduced from the CD-R 100, and the skip ID written as the TOC information is read.

When the processing in step S41 or S42 is completed, the processing shifts to step S43.
In step S43, the PMA in step S41 described above is used.
The track number set as the skip ID is extracted based on the information reproduced from the TOC or the information read from the TOC in step S42. For example, skip ID
It is assumed that the a-th track is set.

In the next step S44, it is determined whether or not the track to be reproduced by the audio CD recorder 1 is the a-th track to which a skip ID has been set. If it is judged that it is not the a-th track,
The process proceeds to step S46, and the track is reproduced. On the other hand, if it is determined in step S44 that the track to be reproduced is the a-th track, the process proceeds to step S45, in which the track number of the track to be reproduced is incremented by 1 to be the "a + 1" th track. , The optical pickup unit 101 is moved to the “a + 1” th track. Then, in step S46, the “a + 1” th track is reproduced.

In the above description, the present invention relates to a CD-R or C-R
Although the present invention has been described as being applicable to an optical disc recording medium such as D-RW, the present invention is not limited to this example. The present invention can be applied to an apparatus using a magnetic disk or a magneto-optical disk as a recording medium. Further, the present invention is not limited to a disk-shaped recording medium, and can be applied to an apparatus using a magnetic tape as a recording medium.

[0099]

As described above, according to the present invention, an error is detected during recording of audio data on a CD-R by track-at-once, and skip processing is automatically performed for a track whose recording has been abnormally terminated. To be done. Therefore, there is an effect that a CD-R capable of skipping a track on which recording has been abnormally completed can be completed without a special operation by the user.

Also, since the skip ID setting flag indicating that there is an intention to set the skip ID is held in the memory in association with the track number of the track on which an abnormality was detected during recording, the CD-R To check whether the recording for
There is an effect that it is not necessary to listen to all the tracks of R.

Further, since the skip processing is automatically performed, there is an effect that the operation during recording is monitored and it is not necessary to manually perform the skip processing when an abnormality occurs.

Further, according to the second embodiment of the present invention, even if there is an abnormality at the time of recording, there is an effect that the recovery recording process for re-recording the track having the abnormality can be easily performed. . Therefore, even if there is an abnormality during recording, there is no need to repeat the recording operation, and there is an effect that the recording medium is not wasted.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a layout of each region in a CD-R from a sectional direction.

FIG. 2 is an audio CD applicable to the first embodiment;
1 shows a configuration example of a recorder 1.

FIG. 3 is a schematic diagram illustrating a configuration of one subcode frame of a subcode Q channel of PMA.

FIG. 4 is a flowchart illustrating an example of a process of automatically setting a skip ID.

FIG. 5 is a schematic diagram illustrating an example of a recording state of a skip ID setting flag and a track number in a memory;

FIG. 6 is a schematic diagram schematically showing a track arrangement when a recovery recording process is performed by controlling a reproduction side by an audio CD recorder;

FIG. 7 is a flowchart of an example of a recovery recording process.

FIG. 8 is a schematic diagram illustrating an example of display on a display unit during recovery recording.

FIG. 9 is a flowchart illustrating an example of a process when reproducing a CD-R 100 to which a skip ID is set.

[Explanation of symbols]

1 ... Audio CD recorder, 100 ... CD-
R disk, 101 ... optical pickup unit, 112
... CD encoder, 120 ... Microcontroller, 121 ... Non-volatile memory 121, 122 ...
.Display unit, 123... Memory

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) G11B 27/00 G11B 27/00 DF term (reference) 5D044 BC05 CC06 DE03 DE12 DE17 DE23 DE29 DE39 DE45 EF05 GK12 5D090 AA01 BB03 CC14 DD03 FF24 GG36 HH01 5D110 AA16 BB02 DA06 DB03 DB09 DC03 DE06

Claims (4)

[Claims] 1. A recording apparatus for recording continuously inputted digitized program information on a recording medium, wherein said continuously inputted digitized program information is normally recorded on said recording medium. Discriminating means for discriminating whether or not the program information is continuously recorded when the discriminating means determines that the continuously input digitized program information is not normally recorded on the recording medium. Storage means for storing a program number of the program information determined not to have been recorded, and for skipping the program information determined not to be recorded normally based on the program number stored in the storage means Recording means for recording the control signal in the management area of the recording medium. 2. The recording apparatus according to claim 1, wherein the determination means determines whether or not the laser power is appropriate and determines whether or not the information is normally recorded on the recording medium. Recording device. 3. The recording apparatus according to claim 1, wherein said discriminating means discriminates whether or not various servos are normal, thereby discriminating whether or not the servo is normally recorded on said recording medium. Recording device. 4. A reproducing apparatus for reproducing a recording medium including a management area for recording a control signal for skipping program information for which recording failed and a recording area on which program information is recorded, wherein the recording is performed in the management area. Reproducing means for reproducing the control signal and the program information recorded in the recording area; and preventing reproduction of the failed program information based on the control signal reproduced from the management area by the reproducing means. And a control means for controlling the reproduction means.