JP2001236730A - Information recording/reproducing device and method and computer readable recording medium with information recording/reproducing program recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce/output continuously information recorded on a recording medium, and to record continuously the information on the same recording medium parallel to the reproduction. SOLUTION: A controller 9 reproduces faster than a speed at which an external interface 11 outputs audio information and intermittently the audio information on an optical disk 13 while always leaving a prescribed amount of audio information so that the read-out the audio information from an outputting butter area of a buffer memory 8 isn't interrupted, and records the audio information on the optical disk 13 faster than a speed at which the external interface 10 inputs the audio information and intermittently while always holding a prescribed amount of free areas so that the write-in of the audio information to an inputting buffer area of the buffer memory 8 doesn't become impossible, and reproduces/records the audio information for the optical disk 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus for recording / reproducing information on / from an information recording medium (media) such as a CD-R or CD-RW capable of recording various information such as audio information. The present invention relates to an information recording / reproducing method for the information recording medium, and a computer-readable recording medium recording the information recording / reproducing processing program.

[0002]

2. Description of the Related Art For example, audio information on a recording medium (media) such as a compact disk (CD) is recorded in a form called a track. Normally, audio information for one track corresponds to one music piece.

[0003] An information reproducing apparatus such as a CD-ROM drive or the like, when reproducing audio information on a recording medium, can reproduce a track without interruption by continuously reproducing the track without a break.

However, if a failure such as a reproduction error, a reproduction interruption, or an external impact occurs, the audio information cannot be reproduced without a break, resulting in problems such as skipping of reproduced sound and mixing of noise. .

[0005] Audio information on a recording medium is reproduced in units called sectors.
(RC, interleave), information of one sector is recorded in a mixed manner across three sectors as a physical area.

[0006] When playback is interrupted at an arbitrary position,
The lack of audio information over these three sectors has caused noise and skipping. Therefore, in order to smoothly reproduce the audio information recorded on the recording medium as described above, it is necessary to continuously reproduce the audio information.

Conventionally, audio information reproduced from a recording medium is temporarily stored in a buffer, and then read out from the buffer and reproduced to prevent sound skipping during reproduction (for example, JP-A-7-302465). Reference).

According to such an information recording / reproducing apparatus, the speed at which the audio information is read from the recording medium and written into the buffer is set higher than the standard speed, and the audio information is stored in the buffer. By reading and reproducing at a standard speed, even if reading of the audio information from the recording medium is delayed due to impact or the like, the audio information stored in the buffer is reproduced without interruption so that the reproduced sound can be reproduced. Sound skipping can be prevented.

When the audio information of sector n is obtained when the audio information of the recording medium is reproduced, the data is read from sectors n to (n + 2), and the audio information extending over three sectors is decoded.
The audio information of sector n is extracted to obtain the audio information of sector n and stored in a buffer, so that even if the reproduction of the audio information on the recording medium is interrupted for some reason, the audio information up to sector n remains It will be in the buffer.

Before the audio output reaches the sector n, reading from the recording medium is resumed and the sector (n +
By rereading from (1), the audio information after (n + 1) is accumulated in the buffer, and the output of the audio information does not need to be interrupted, so that it is possible to reproduce sound without skipping or noise.

On the other hand, in the information recording / reproducing apparatus, even when recording audio information on a recordable recording medium, continuous recording can be performed by recording tracks continuously without breaks. However, if a failure such as a recording / reproducing error, a recording interruption, or an external impact occurs, it becomes impossible to record audio information without interruption.

For example, if the recording is interrupted for some reason after recording the sector n, a part of the information of the sector n distributed to the sector (n + 1) and the sector (n + 2) is lost.

Here, when re-recording from sector (n + 1), it is conceivable to perform recording by taking into account the information of sector n. In reality, it is almost impossible to connect n and the sector (n + 1) for recording, and noise is always generated at the time of reproducing the joint.

As a cause of the recording interruption, in addition to the interruption by the user, when the processing of the audio information is performed by a computer, the processing is not in time, and the audio information to be recorded on the recording medium is lost ( This phenomenon is called "buffer underrun").

[0015]

However, in the information recording / reproducing apparatus as described above, the reproduction and recording of audio information on one recording medium are performed in parallel, and the audio information to be recorded is interrupted. There is a problem that a recording error cannot be prevented. In addition, not only audio information but also other various information such as image information has a similar problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and reproduces information recorded on a recording medium and outputs the information without interruption. In parallel with the reproduction, the information is transferred to the same recording medium. The purpose is to enable continuous recording.

[0017]

In order to achieve the above object, the present invention provides an information reproducing means for reproducing information recorded on a recording medium, an information inputting means for inputting information, and a reproducing means for reproducing information by the information reproducing means. Information storage means having an output information temporary storage area for temporarily storing the input information before output, and a record information temporary storage area for temporarily storing the information input by the information input means before recording; Information output means for outputting information stored in the temporary storage area; information recording means for recording information stored in the recording information temporary storage area on the recording medium; and reading of information from the output information temporary storage area The information output means outputs the information faster and intermittently while the predetermined amount of information always remains in the output information temporary storage area so that the information is not interrupted. The information input means reproduces the information on the recording medium, and stores the information while always keeping a predetermined amount of free space in the temporary storage area for recording information so that writing of the information in the temporary storage area for recording is not disabled. An information recording / reproducing control means for recording information on the recording medium while recording information on the recording medium intermittently at a speed higher than an input speed and reproducing the information on the recording medium; Provide equipment.

Further, information reproducing means for reproducing information recorded on the recording medium, output information temporary storage means for temporarily storing information reproduced by the means before output, and information stored in the means. Information output means for outputting, information input means for inputting information, recording information temporary storage means for temporarily storing information input by the means before recording, and information stored in the means to the recording medium. Information recording means for recording, and a speed at which the information output means outputs information while always keeping a predetermined amount of information in the output information temporary storage means so that reading of information from the output information temporary storage means is not interrupted. The information on the recording medium is reproduced faster and intermittently, and the information is temporarily stored in the recording information temporary storage means so that the information cannot be written into the recording information temporary storage means. The information input means records information on the recording medium intermittently at a higher speed than the information input means while always keeping a predetermined amount of free space, and reproduces the information on the recording medium while reproducing the information on the recording medium. The information recording / reproducing apparatus may be provided with information recording / reproducing control means for recording information on a medium.

Further, in the information recording / reproducing apparatus as described above, it is preferable to provide a means for making a recording destination area of the information on the recording medium by the information recording means different from a storage area of the reproduced information.

Alternatively, in the information recording / reproducing apparatus as described above, it is preferable to provide means for making the recording destination area of the information on the recording medium by the information recording means the same as the storage area of the reproduced information.

Further, the information recorded on the recording medium is reproduced, the reproduced information is temporarily stored in an output information temporary storage area and then output to the outside, the information is input, and the input information is read. When the information is temporarily stored in the recording information temporary storage area and then recorded on the recording medium and the information on the recording medium is recorded while reproducing the information on the recording medium, the information from the output information temporary storage area is The information on the recording medium is reproduced intermittently faster than the speed at which the information is output while intermittently keeping a predetermined amount of information in the output information temporary storage area so that the reading is not interrupted. While maintaining a predetermined amount of free space in the temporary storage area for recording information so as not to make it impossible to write information to the area, the speed of inputting the information is increased faster and intermittently. Information recording and reproducing method for recording information on a recording medium is also provided.

Further, in the above information recording / reproducing method, it is preferable that a recording destination area of the information on the recording medium is different from a storage area of the reproduced information.

Alternatively, in the above information recording / reproducing method, it is preferable that a recording destination area of the information on the recording medium is the same as a storage area of the reproduced information.

Further, an information reproducing function for reproducing information recorded on a recording medium, an information input function for inputting information,
An information storage function for temporarily storing information reproduced by the information reproduction function in an output information temporary storage area before output and temporarily storing information input by the information input function in a recorded information temporary storage area before recording An information output function of outputting information stored in the output information temporary storage area, an information recording function of recording the information stored in the recording information temporary storage area on the recording medium, The information on the recording medium is reproduced intermittently faster than the speed at which the information is output while intermittently leaving a predetermined amount of information in the output information temporary storage area so that the reading of the information is not interrupted. The above information is inputted while always keeping a predetermined amount of free space in the above-mentioned temporary storage area for recording so as not to make it impossible to write the information in the temporary storage area. The information is recorded on the recording medium faster than the speed and intermittently, the information is recorded on the recording medium while reproducing the information on the recording medium, and the recording destination area of the information on the recording medium is reproduced. An information recording / reproducing processing program for causing a computer to realize an information recording / reproducing control function of making the recording area of the information on the recording medium different from the storage area of the reproduced information or the same as the storage area of the reproduced information. A recorded computer-readable recording medium is also provided.

[0025]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a functional block diagram showing a configuration example of an optical disk recording / reproducing apparatus which is an embodiment of the information recording / reproducing apparatus of the present invention.

FIG. 2 is a functional block diagram for explaining the processing of the optical disk recording / reproducing apparatus shown in FIG. 1 according to the present invention. FIG. 3 is an explanatory diagram showing an example of a recording format on the optical disk shown in FIG.

FIG. 4 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first and fifth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

FIG. 5 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first, third, fifth and sixth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

FIG. 6 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first, fourth, fifth and seventh aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

As the optical disk shown in FIG. 1, for example,
In the case of a compact disk (CD), the minimum reproduction unit is a unit called a sector, and one sector has 2048 units.
It contains information of up to 2352 bytes (Byte).
In particular, if it is audio information, 2352 are included in one sector.
Contains byte information.

In addition, the information of one sector is actually recorded in a mixed manner across three sectors as a physical area in accordance with the regulations such as CIRC and interleave of the recording method.

One minimum recording unit is a packet or EF.
This is an M recording sequence. As shown in FIG. 3, the minimum recording unit (hereinafter, collectively referred to as a “packet”) 30 of the EFM recording sequence is composed of one or more reproducible user data blocks (user data sectors) 32 and p
Link sectors 31 and the following q link sectors 33.

The link sector 31 is data of one interleave length (a length extending over two sectors, substantially two sectors) provided before the user data block 32, and the link sector 33 is a user data block. This is data of one interleave length provided after 32.

These link sectors 31 and 33 are C
This is a sector defined in the above standard that is necessary for connecting packets when recording data in D, and the sector does not include user data.

That is, according to the above-described recording rule, the inaccuracy of the joint due to the insufficient recording accuracy and the CIR
C. Information protruding in interleaving is absorbed by the link portion, and the lack of information due to the link does not occur in the user data. Hereinafter, such a recording rule is called a linking rule.

In an ordinary optical disk recording / reproducing apparatus, a packet is not used for recording audio information, but is a minimum recording unit dedicated to data information recording, and a minimum recording unit of audio information recording is an EFM recording sequence. According to the above rules, the configuration of the link block differs.

On the other hand, a write-once compact disc (CD-
R), a rewritable compact disc (CD-RW) and other recording media include a disc-at-once method, a track-at-once method, and a packet write method.

The disk-at-once method is a method in which information is recorded all at once in a continuous manner over the entire recording area of the disk.

In the track-at-once method, information of a unit of a track (a recording unit capable of recording up to 99 pieces on an optical disc, and in the case of audio information, usually corresponds to data of one music piece) is recorded in one packet. In this method, the user data sectors in the track are continuous, and there is no link sector between the user data sectors.

The above-mentioned disc-at-once method or track-at-once method is used for recording audio information.

On the other hand, the packet write method is
This is a method in which the track is divided into a plurality of packets, and recording is performed for each packet. Since information is recorded in units of packets, user data sectors in one track exist discretely. There is a link sector between them.

The packet write method has not conventionally been used for recording audio information. This is because the link write sector exists in one track (one song) in the packet write method, and the link sector is reproduced in the normal information reproducing apparatus in order to reproduce the track without interruption. This is because they are reproduced as noise or noise.

Therefore, if only the user data on the optical disk is connected and output as an audio output, the recording and reproduction of the audio information by the packet write recording method becomes possible.

The optical disk recording / reproducing apparatus of this embodiment records and reproduces audio information on and from an optical disk, so that even if the recording operation for recording audio information on the optical disk is interrupted, the recording is performed without any trouble during reproduction. By using a buffer in the apparatus divided for recording and reproduction, information is recorded on the same optical disk while reproducing information on the optical disk by audio recording / reproduction processing.

As shown in FIG. 1, the optical disk recording / reproducing apparatus of this embodiment has a spindle motor (hereinafter referred to as “motor”) 1 for rotating the optical disk 13 and a semiconductor laser mounted on a recording area of the optical disk 13. An optical pickup 3 for irradiating a laser beam L and a coarse movement motor 2 for moving the optical pickup 3 in the radial direction of the optical disk 13 in cooperation with a seek motor provided therein are provided.

A rotation control system 4 for controlling the rotation of the motor 1, a coarse motor control system 5 for controlling the drive of the coarse motor 2, an optical pickup control system 6 for controlling the optical pickup 3, A signal processing system 7 is provided for transmitting and receiving a signal of audio information read by the pickup 3 and a signal of audio information to be written to a recording area of the optical disc 13.

Further, an area for storing audio information reproduced from the optical disk 13 (hereinafter referred to as an "output buffer area") and an area for storing audio information to be recorded on the optical disk 13 (hereinafter referred to as an "input buffer area"). ) Is connected to input devices such as a microphone and an audio playback device via an external interface 10, and a speaker,
An output device such as an audio playback device is connected.

Further, together with the control processing of the control systems 4 to 6 and the signal processing system 7, various kinds of processing such as audio recording / reproducing processing for recording audio information on the same optical disk while reproducing audio information on the optical disk according to the present invention. A controller 9 implemented by a microcomputer including a CPU for performing control processing, a ROM, a RAM, and the like is provided.

The controller 9 is connected to a host computer via an external interface 12, and based on an instruction from the host computer, the optical disk 13
It also sends audio information read from the input device to the output device and receives audio information to be written to the optical disc 13 from the input device.

The host computer and the input device and the output device may be separate units, or may be housed in the same housing.

Then, while rotating the optical disk 13 by the motor 1, the optical pickup 3 is moved to the optical disk 1.
3 is moved in the radial direction, and a laser beam L is irradiated from a semiconductor laser of the optical pickup 3 onto a recording area on the recording surface of the optical disc 13 to record and reproduce audio information.

Next, the motor 1, the coarse motor 2, the optical pickup 3, the rotation control system 4, the coarse motor control system 5, the pickup control system 6, and the signal processing system 7 are divided into information recording means and information reproducing means. In summary, the configuration of the optical disk recording / reproducing apparatus shown in FIG. 1 includes a controller 9, an information reproducing unit 20, an information recording unit 21, and a buffer memory 8, as shown in FIG.

This optical disk recording / reproducing apparatus
In reproducing information, the information reproducing unit 20 controls the optical disc 1
The information is reproduced from the buffer 3 and stored in the buffer memory 8, and then output to an external output device via the external interface 11.

In recording information, information obtained from an external input device via the external interface 10 is temporarily stored in the buffer memory 8, and then the information is recorded on the optical disk 13 by the information recording unit 21.

That is, the information reproducing unit 20 functions as an information reproducing unit for reproducing information recorded on a recording medium, the external interface 10 functions as an information input unit for inputting information, and the buffer memory 8 functions as an information input unit. Information storage means having an output information temporary storage area for temporarily storing information reproduced by the information reproduction means before output, and a record information temporary storage area for temporarily storing information input by the information input means before recording. Perform the function of each.

The external interface 11 has a function of an information output means for outputting the information stored in the output information temporary storage area, and the information recording section 21 has a function of outputting the information stored in the recording information temporary storage area. The function of the information recording means for recording on the recording medium is performed.

Further, the controller 9 controls the information output means to output the information while always keeping a predetermined amount of information in the output information temporary storage area so that the reading of the information from the output information temporary storage area is not interrupted. The information on the recording medium is reproduced intermittently faster than the output speed, and a predetermined amount of free space is always provided in the recording information temporary storage area so that the information cannot be written to the recording information temporary storage area. The information is recorded on the recording medium intermittently faster than the speed at which the information input means inputs the information while keeping the information, and the information is recorded on the recording medium while reproducing the information on the recording medium. It fulfills the function of information recording and reproduction control means.

Further, the controller 9 includes: means for making the information recording area of the information recorded on the recording medium by the information recording means different from the storage area of the reproduced information;
The information recording unit also functions as a unit for making the recording destination area of the information on the recording medium the same as the storage area of the reproduced information.

Next, an audio recording / reproducing process for the same optical disk according to the first and fifth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG. 1 will be described.

FIG. 4 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first and fifth aspects of the present invention. This audio recording / reproducing process is a parallel audio information recording / reproducing process for recording audio information on the same optical disk 13 while reproducing audio information (audio information) recorded on the optical disk 13.

When starting the audio recording / reproducing process, the controller 9 reproduces the audio information from the track n of the optical disk by the information reproducing unit in step (indicated by "S" in the figure) 1 and transfers it to the output buffer area of the buffer memory. accumulate.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disk to be higher than the speed of outputting the audio information from the output buffer area of the buffer memory to the output device, and always stores a predetermined amount of data in the output buffer area. Control is performed so that audio information remains and data transfer to the output device is not interrupted.

Proceeding to step 2, it is determined whether a predetermined amount of audio information has been stored in the output buffer area, and the processing of step 1 is repeated until a predetermined amount of audio information has been stored in the output buffer area. .

When a predetermined amount of audio information has been stored in the output buffer area of the buffer memory in the determination of step 2, the process proceeds to step 3 where the audio information is read from the output buffer area, and the external output device is connected via an external interface. To start outputting audio information to be input to an input device via an external interface, and to start inputting audio information for storing audio information input from an input device in an input buffer area of a buffer memory.

The process proceeds to step 4 to determine whether or not a request for ending the recording / reproducing process of the audio information has been made. If there is, the audio recording / reproducing process is terminated.
Then, the process proceeds to step 8 to determine whether a predetermined amount of audio information is stored in the input buffer area. If the audio information is stored, the process proceeds to step 8 to read a predetermined amount of audio information from the input buffer area, and to record information. The information is recorded on the optical disk by the unit, and the process returns to step S4.

At the time of this processing, the controller sets the writing speed of the audio information to the optical disk to be faster than the speed at which the input device stores the audio information in the input buffer area of the buffer memory, and the audio information cannot be written to the input buffer area. The data transfer to the optical disk is controlled so as not to be interrupted.

If it is determined in step 5 that a predetermined amount of audio information is not stored in the input buffer area, the flow advances to step 6 to determine whether a predetermined amount of capacity is available in the output buffer area. Then, the process proceeds to step 9, where a predetermined amount of audio information is reproduced from the optical disk, stored in the output buffer area, and the process returns to step 4.

If it is determined in step 6 that a predetermined amount of capacity is not available in the output buffer area, the flow advances to step 7 to wait for a predetermined time and interrupt reproduction of audio information from the optical disk. Return to the processing of. When the reproduction of the audio information is interrupted, the output of the audio information from the output buffer area continues, and the audio output from the output device can be performed without interruption.

In this way, the audio information reproduced from the optical disk 13 is output through the output buffer area of the buffer memory 8 and the audio information input from the input device is stored in the input buffer area of the buffer memory 8. By simultaneously starting the accumulation process and recording the audio information in the input buffer area on the optical disc 13 while the reproduction of the optical disc 13 is being waited, it is possible to perform processing as if recording and reproduction on the same optical disc were performed simultaneously. can do.

Further, since one buffer memory is used for both inputting and outputting audio information, a plurality of buffer memories need not be provided. Without having to rise.

The processing order of steps 4 to 6 does not necessarily have to be performed in the order described above. For example, in the above-described processing, after determining whether a predetermined amount of audio information has been accumulated in the input buffer area, it is determined whether a predetermined amount of free space has occurred in the output buffer area. Alternatively, the processing order may be changed.

Further, the processing for determining whether or not the recording / reproducing processing has ended is performed after the processing for determining whether or not a predetermined amount of audio information has been stored in the input buffer area, or when a predetermined amount of empty area has been detected in the output buffer area. It may be performed after the determination process whether or not it has occurred.

As described above, the buffer memory 8 is divided into the input buffer area dedicated to the recording information and the output buffer area dedicated to the reproduction information, and is used to reduce the input speed of each area from the external input device. By increasing the recording speed to the optical disk and making the reproduction speed of the optical disk faster than the output speed to the output device, recording and reproduction on the same optical disk can be performed simultaneously by one optical disk recording and reproduction device. It becomes possible to do.

Next, the audio recording / reproducing processing for different areas of the same optical disk according to the first, third, fifth and sixth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG. 1 will be described.

In the audio recording / reproducing process shown in FIG. 4, the address on the optical disk 13 for reproducing the audio information and the address on the optical disk 13 for recording the audio information are assigned to different tracks (different storage areas). New audio information that has been subjected to mixing or the like can be recorded as a new track while leaving the original audio information on the optical disc 13.

FIG. 5 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first, third, fifth and sixth aspects of the present invention. This audio recording / reproducing processing is performed while reproducing the audio information (audio information) recorded on the optical disc 13 while the same optical disc 1 is being reproduced.
This is audio information recording / playback parallel processing for recording audio information in three different areas.

When the audio recording / reproducing process is started, the controller 9 sets the number of the reproducing track to n and the number of the recording track to make the reproducing track and the recording track different in step (indicated by “S” in the figure) 11. m (however,
n ≠ m), the process proceeds to step 12, and the information reproducing unit reproduces the audio information from the track n of the optical disk, and stores it in the output buffer area of the buffer memory.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disk higher than the speed of outputting the audio information from the output buffer area of the buffer memory to the output device, and always stores a predetermined amount of data in the output buffer area. Control is performed so that audio information remains and data transfer to the output device is not interrupted.

Proceeding to step 13, it is determined whether a predetermined amount of audio information has been stored in the output buffer area, and the processing of step 12 is repeated until the predetermined amount of audio information has been stored in the output buffer area. .

If a predetermined amount of audio information has been stored in the output buffer area of the buffer memory in the determination of step 13, the process proceeds to step 14 where the audio information is read from the output buffer area, and the external output device is connected via an external interface. To start outputting audio information to be input to an input device via an external interface, and to start inputting audio information for storing audio information input from an input device in an input buffer area of a buffer memory.

The flow advances to step 15 to determine whether or not there is a request for ending the recording / reproducing processing of the audio information. If there is, the audio recording / reproducing processing is terminated. It is determined whether or not a predetermined amount of audio information has been stored, and if it has been stored, the process proceeds to step 19, where a predetermined amount of audio information is read from the input buffer area, and recorded on the track m of the optical disk by the information recording unit. Then, the process returns to step S15.

At the time of this processing, the controller sets the writing speed of the audio information to the optical disk to be higher than the speed of storing the audio information from the input device into the input buffer area of the buffer memory, and the audio information cannot be written to the input buffer area. The data transfer to the optical disk is controlled so as not to be interrupted.

If it is determined in step 16 that a predetermined amount of audio information is not stored in the input buffer area, the process proceeds to step 17 to determine whether a predetermined amount of capacity is available in the output buffer area. Then, the process proceeds to step 20, where a predetermined amount of audio information is reproduced from track n of the optical disc, stored in the output buffer area, and the process returns to step 15.

If it is determined in step 17 that the predetermined amount of capacity is not available in the output buffer area, the flow advances to step 18 to wait for a predetermined time set in advance and interrupt reproduction of audio information from the optical disk. Return to the processing of. When the reproduction of the audio information is interrupted, the output of the audio information from the output buffer area continues, and the audio output from the output device can be performed without interruption.

Note that the processing order of steps 15 to 17 does not necessarily have to be performed in the order described above. For example, in the above-described processing, after determining whether a predetermined amount of audio information has been accumulated in the input buffer area, it is determined whether a predetermined amount of free space has occurred in the output buffer area. Alternatively, the processing order may be changed.

Further, the processing for determining whether or not recording / reproducing processing has been completed is performed after the processing for determining whether or not a predetermined amount of audio information has been stored in the input buffer area, or when a predetermined amount of free space has been left in the output buffer area. It may be performed after the determination process whether or not it has occurred.

In this way, the audio information reproduced from the optical disk 13 is output through the output buffer area of the buffer memory 8 and the audio information input from the input device is stored in the input buffer area of the buffer memory 8. By simultaneously starting the accumulation process and recording the audio information in the input buffer area on the optical disc 13 while the reproduction of the optical disc 13 is being waited, it is possible to perform processing as if recording and reproduction on the same optical disc were performed simultaneously. can do.

Further, since the audio information input from the input device can be recorded in an area different from the audio information recorded in advance on the optical disc 13, for example, the karaoke music information is recorded on the first track. It is possible to mix the user's voice information input from the microphone and the above-mentioned music information at the time of reproducing the music information and simultaneously record the music information on the second track, thereby easily creating a music CD in which the user's singing voice is blown. can do.

Next, the audio recording / reproducing process for the same area of the same optical disc according to the first, fourth, fifth and seventh aspects of the present invention in the optical disc recording / reproducing apparatus shown in FIG. 1 will be described.

In the audio recording / reproducing process shown in FIG. 4, by assigning the address on the optical disk 13 for reproducing the audio information and the address on the optical disk 13 for recording the audio information to the same address (the same storage area), It is possible to overwrite the original audio information on the optical disc 13 with new audio information that has been subjected to mixing or the like, and to record the new audio information. Thus, the recording area can be effectively used without leaving unnecessary data on the optical disc.

FIG. 6 is a flowchart showing an audio recording / reproducing process for the same optical disk according to the first, fourth, fifth and seventh aspects of the present invention. This audio recording / reproducing process is a parallel process of recording / reproducing audio information in which the audio information is recorded in the same area as the above-mentioned audio information on the same optical disk 13 while reproducing the audio information (audio information) recorded on the optical disk 13. .

When the audio recording / reproducing process is started, the controller 9 sets the reproduction track number and the recording track number to n in step (indicated by “S” in the figure) 31 in order to make the reproduction track and the recording track the same. (Same address, same track), and the process proceeds to step 32 where the information reproducing unit reproduces audio information from track n of the optical disk and stores it in the output buffer area of the buffer memory.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disk higher than the speed of outputting from the output buffer area of the buffer memory to the output device, and always stores a predetermined amount of the audio information in the output buffer area. Control is performed so that audio information remains and data transfer to the output device is not interrupted.

Proceeding to step 33, it is determined whether or not a predetermined amount of audio information has been stored in the output buffer area, and the processing of step 32 is repeated until the predetermined amount of audio information has been stored in the output buffer area. .

When a predetermined amount of audio information has been accumulated in the output buffer area of the buffer memory in the judgment of step 33, the process proceeds to step 34, where the audio information is read from the output buffer area, and the external output device is connected via the external interface. To start outputting audio information to be input to an input device via an external interface, and to start inputting audio information for storing audio information input from an input device in an input buffer area of a buffer memory.

The flow advances to step 35 to determine whether there is a request for ending the recording / reproducing processing of the audio information. If there is, the audio recording / reproducing processing is terminated. It is determined whether or not a predetermined amount of audio information has been stored. If the predetermined amount of audio information has been stored, the process proceeds to step 39, where a predetermined amount of audio information is read from the input buffer area, and the audio data reproduced from the optical disc by the information recording unit. The information is recorded on track n at the same address as the storage location of the information, and the process returns to step S35.

At the time of this processing, the controller sets the writing speed of the audio information to the optical disk to be faster than the speed at which the input device stores the audio information in the input buffer area of the buffer memory, and the audio information cannot be written to the input buffer area. The data transfer to the optical disk is controlled so as not to be interrupted.

If it is determined in step 36 that a predetermined amount of audio information is not stored in the input buffer area, the process proceeds to step 37, where it is determined whether a predetermined amount of capacity is available in the output buffer area. Then, the process proceeds to step 40, in which a predetermined amount of audio information is reproduced from the track n of the optical disc, stored in the output buffer area, and the process returns to step 35.

If it is determined in step 37 that the predetermined amount of space is not available in the output buffer area, the flow advances to step 38 to wait for a predetermined time and interrupt reproduction of audio information from the optical disk. Return to the processing of. When the reproduction of the audio information is interrupted, the output of the audio information from the output buffer area continues, and the audio output from the output device can be performed without interruption.

The processing order of the steps 35 to 37 does not necessarily have to be performed in the order described above. For example, in the above-described processing, after determining whether a predetermined amount of audio information has been accumulated in the input buffer area, it is determined whether a predetermined amount of free space has occurred in the output buffer area. Alternatively, the processing order may be changed.

Further, the processing for judging the end of the recording / reproducing processing is performed after the processing for judging whether a predetermined amount of audio information has been accumulated in the input buffer area, or when a predetermined amount of free area is left in the output buffer area. It may be performed after the determination process whether or not it has occurred.

In this way, the audio information reproduced from the optical disk 13 is output through the output buffer area of the buffer memory 8 and the audio information input from the input device is stored in the input buffer area of the buffer memory 8. By simultaneously starting the accumulation process and recording the audio information in the input buffer area on the optical disc 13 while the reproduction of the optical disc 13 is being waited, it is possible to perform processing as if recording and reproduction on the same optical disc were performed simultaneously. can do.

Also, since the audio information input from the input device can be overwritten on the area of the audio information previously recorded on the optical disk 13, the audio information can be recorded.
For example, music information of karaoke recorded on the first track is reproduced, and at the time of the reproduction, the audio information of the user input from the microphone and the music information are mixed and recorded on the first track again, A music CD into which a user's singing voice is imprinted can be easily created.
Therefore, audio information can be superimposed by repeatedly executing multiple recording on the recording area of the optical disk, and the recording area can be effectively used.

Next, an optical disk recording / reproducing apparatus according to another embodiment of the present invention will be described. The optical disk recording / reproducing apparatus of this embodiment has almost the same configuration as the optical disk recording / reproducing apparatus shown in FIGS. 1 and 2, but the configuration and the function of the controller are slightly different from those of the above-described apparatus. In the following description, a new illustration is omitted because the device configuration is almost the same, and the common components will be described using the reference numerals shown in FIGS. 1 and 2.

In the above-described optical disk recording / reproducing apparatus, a case where one buffer memory is shared for inputting and outputting audio information is shown. However, in the optical disk recording / reproducing apparatus of this embodiment, the buffer memory shown in FIG. In the apparatus configuration, two buffer memories are provided between the controller 9 and the signal processing system 7 via a data bus.

Then, one of the buffer memories is connected to an external input device via an external interface, and the buffer memory is allocated to an input buffer for storing audio information input from the input device, and the other buffer memory is used as another buffer memory. It is connected to an external output device via two external interfaces, and is assigned to an output buffer for storing audio information reproduced from an optical disk.

In the following description, the buffer memory assigned to the input buffer is called audio information input buffer memory, and the buffer memory assigned to the output buffer is called audio information output buffer memory.

In the functional configuration shown in FIG. 2, an audio information output buffer memory is connected to the information reproducing unit 20 via a data bus, and the audio information output buffer memory is connected to an external device via an external interface. Output device.

On the other hand, an audio information input buffer memory is connected to the information recording section 21 via a data bus, and the audio information input buffer memory is connected to an external input device via an external interface.

That is, in the optical disk recording / reproducing apparatus of this embodiment, the information reproducing section 20 performs the function of the information reproducing means for reproducing the information recorded on the recording medium, and the audio information output buffer memory reproduces the function of the information reproducing means. The external interface fulfills the function of output information temporary storage means for temporarily storing the output information before output, and the function of the information output means for outputting the information stored in the output information temporary storage means.

The function of the information input means for inputting information by the external interface is the same as the function of the recording information temporary storage means for temporarily storing the information input by the information input means in the audio information output buffer memory before recording. The information recording unit 21 functions as an information recording unit that records information stored in the recording information temporary storage unit on the recording medium.

Further, the controller 9 outputs the information while keeping a predetermined amount of information in the output information temporary storage means so that the reading of the information from the output information temporary storage means is not interrupted. The information on the recording medium is reproduced intermittently at a speed higher than the speed at which recording is performed, and a predetermined amount of free space is always kept in the recording information temporary storage means so that the information cannot be written to the recording information temporary storage means. Information that is recorded at a higher speed than the information input means inputs information intermittently and intermittently to record the information on the recording medium while reproducing the information on the recording medium. It fulfills the function of recording and playback control means.

Next, the audio recording / reproducing processing for the same optical disk according to the second aspect of the present invention in the optical disk recording / reproducing apparatus of this embodiment will be described. Since this processing is almost the same as the processing shown in FIG. 4, a different part will be added to the processing of FIG.

In this audio recording / reproducing process, audio information (audio information) recorded on the optical disk 13 is reproduced using two buffer memories, an audio information output buffer memory and an audio information input buffer memory. The audio information recording and reproduction parallel processing for recording audio information on the same optical disk 13.

When the controller 9 starts the audio recording / reproducing process, in step 1, the information reproducing section reproduces audio information from the track n of the optical disk and stores it in the audio information output buffer memory.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disk higher than the speed of outputting the audio information from the buffer memory for outputting audio information to the output device, and always stores the audio information in the buffer memory for outputting audio information by a predetermined amount. , So that the data transfer to the output device is not interrupted.

Proceeding to step 2, it is determined whether a predetermined amount of audio information has been stored in the audio information output buffer memory, and step 1 is performed until the predetermined amount of audio information is stored in the audio information output buffer memory. Is repeated.

When a predetermined amount of audio information has been stored in the audio information output buffer memory in the determination of step 2, the process proceeds to step 3 where the audio information is read from the audio information output buffer memory and externally output via the external interface. The output of audio information to be output to the device is started, and the input of audio information for storing audio information input from an input device via an external interface in an audio information input buffer memory is started.

The flow advances to step 4 to judge whether or not a request for ending the recording / reproducing processing of the audio information has been made. If there is, the audio recording / reproducing processing is ended.
To determine whether a predetermined amount of audio information is stored in the audio information input buffer memory,
If it is stored, the process proceeds to step 8 to read out a predetermined amount of audio information from the audio information input buffer memory, record it on the optical disk by the information recording unit, and return to the process of step 4.

At the time of this processing, the controller makes the writing speed of the audio information to the optical disk faster than the speed of storing the audio information from the input device to the audio information input buffer memory, and writes the audio information to the audio information input buffer memory. The data transfer to the optical disk is controlled so as not to be lost so as not to be interrupted.

If it is determined in step 5 that a predetermined amount of audio information has not been stored in the audio information input buffer memory, the flow advances to step 6 to determine whether or not the audio information output buffer memory has a predetermined amount of free space. Then, when there is free space, the process proceeds to step 9 where a predetermined amount of audio information is reproduced from the optical disk, stored in the audio information output buffer memory, and the process returns to step 4.

If it is determined in step 6 that the predetermined amount of space is not available in the audio information output buffer memory, the flow advances to step 7 to wait for a predetermined time and interrupt reproduction of audio information from the optical disk. It returns to the process of step 4. When the reproduction of the audio information is interrupted, the output of the audio information from the audio information output buffer memory continues, and the audio output from the output device can be performed without interruption.

As described above, the process of outputting the audio information reproduced from the optical disc 13 via the audio information output buffer memory and the process of storing the audio information input from the input device in the audio information input buffer memory are described. Starting at the same time, by recording the audio information in the audio information input buffer memory on the optical disk 13 while the reproduction of the optical disk 13 is being waited, processing as if recording and reproduction on the same optical disk were performed simultaneously. Can be.

In particular, since buffer memories for inputting and outputting audio information are provided, reading and writing of each data can be performed independently, and the reading and writing speed depends on reading and writing of the other data. Can be easily adjusted without the need.

Next, audio recording / reproducing processing for different areas of the same optical disk according to the second and third aspects of the present invention in the optical disk recording / reproducing apparatus of this embodiment will be described.

In the audio recording / reproducing processing according to the second aspect of the present invention, the address on the optical disk 13 for reproducing the audio information and the address on the optical disk 13 for recording the audio information are set on different tracks (different storage areas). ), New audio information that has been subjected to mixing or the like can be recorded as a new track while leaving the original audio information on the optical disc 13.

Since this processing is almost the same as the processing shown in FIG. 5, a different portion will be added to the processing of FIG. In this audio recording / reproducing process, audio information (audio information) recorded on the optical disc 13 is reproduced using two buffer memories, an audio information output buffer memory and an audio information input buffer memory.
This is audio information recording / playback parallel processing for recording audio information in different areas of the same optical disc 13.

When the audio recording / reproducing process is started, the controller 9 sets the reproduction track number to n and sets the reproduction track number to n in order to make the reproduction track and the recording track different in step 11.
The number of the recording track is set to m (where n ≠ m), and the process proceeds to step 12, where the information reproducing unit reproduces the audio information from the track n of the optical disk and stores it in the audio information output buffer memory.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disc to be faster than the speed of outputting the audio information from the buffer memory for outputting the audio information to the output device, and always stores the audio information in the buffer memory for outputting the audio information by a predetermined amount. , So that the data transfer to the output device is not interrupted.

Proceeding to step 13, it is determined whether a predetermined amount of audio information has been stored in the audio information output buffer memory, and step 12 is performed until the predetermined amount of audio information is stored in the audio information output buffer memory. Is repeated.

If a predetermined amount of audio information has been stored in the audio information output buffer memory in the determination of step 13, the process proceeds to step 14 where audio information is read from the audio information output buffer memory and output to the external output via the external interface. The output of audio information to be output to the device is started, and the input of audio information for storing audio information input from an input device via an external interface in an audio information input buffer memory is started.

The flow advances to step 15 to determine whether there is a request for ending the recording / reproducing processing of the audio information. If there is, the audio recording / reproducing processing is terminated. It is determined whether or not a predetermined amount of audio information is stored in the memory. If the predetermined amount of audio information is stored, the process proceeds to step 19, where a predetermined amount of audio information is read out from the audio information input buffer memory, and the information recording unit reads the predetermined amount of audio information. Recording is performed on track m, and the process returns to step S15.

At the time of this processing, the controller sets the writing speed of the audio information to the optical disk to be higher than the speed of storing the audio information from the input device to the audio information input buffer memory, and writes the audio information to the audio information input buffer memory. The data transfer to the optical disk is controlled so as not to be lost so as not to be interrupted.

If a predetermined amount of audio information is not stored in the audio information input buffer memory in the determination in step 16, the process proceeds to step 17 to determine whether a predetermined amount of space is available in the audio information output buffer memory. Then, when there is free space, the process proceeds to step 20 to reproduce a predetermined amount of audio information from track n of the optical disk, and to store it in the audio information output buffer memory.
It returns to the process of 5.

If it is determined in step 17 that the predetermined amount of capacity is not available in the audio information output buffer memory,
Proceeding to step 18, wait for a predetermined time set in advance, suspend reproduction of audio information from the optical disc,
The process returns to step S15. When the reproduction of the audio information is interrupted, the output of the audio information from the audio information output buffer memory continues, and the audio output from the output device can be performed without interruption.

As described above, the processing for outputting the audio information reproduced from the optical disk 13 via the audio information output buffer memory and the processing for storing the audio information input from the input device in the audio information input buffer memory are described. Starting at the same time, by recording the audio information in the audio information input buffer memory on the optical disk 13 while the reproduction of the optical disk 13 is being waited, processing as if recording and reproduction on the same optical disk were performed simultaneously. Can be.

Also, since the audio information input from the input device can be recorded in an area different from the audio information recorded in advance on the optical disc 13, for example, the karaoke music information is recorded on the first track. It is possible to mix the user's voice information input from the microphone and the above-mentioned music information at the time of reproducing the music information and simultaneously record the music information on the second track, thereby easily creating a music CD in which the user's singing voice is blown. can do.

Next, audio recording / reproducing processing for the same area of the same optical disk according to the second and fourth aspects of the present invention in the optical disk recording / reproducing apparatus of this embodiment will be described.

In the audio recording / reproducing processing according to the second aspect of the present invention, the address on the optical disk 13 for reproducing the audio information and the address on the optical disk 13 for recording the audio information are the same address (the same storage area). ), It is possible to overwrite the original audio information on the optical disk 13 with new audio information that has been subjected to mixing or the like, and to use the recording area effectively without leaving unnecessary data on the optical disk. be able to.

Since this processing is almost the same as the processing shown in FIG. 6, a different portion will be added to the processing of FIG. In this audio recording / reproducing process, audio information (audio information) recorded on the optical disc 13 is reproduced using two buffer memories, an audio information output buffer memory and an audio information input buffer memory.
This is audio information recording / playback parallel processing for recording audio information in the same area as the audio information on the same optical disc 13.

When the audio recording / reproducing process starts, the controller 9 sets the reproduction track number and the recording track number to n (the same address and the same track) in step 31 to make the reproduction track and the recording track the same.
In step 32, the information reproducing unit reproduces audio information from the track n of the optical disk and stores it in the audio information output buffer memory.

At the time of this processing, the controller 9 sets the reading speed of the audio information from the optical disk to be faster than the speed of outputting from the audio information output buffer memory to the output device, and always stores the audio information in the audio information output buffer memory by a predetermined amount. , So that the data transfer to the output device is not interrupted.

Proceeding to step 33, it is determined whether a predetermined amount of audio information has been stored in the audio information output buffer memory, and step 32 is performed until the predetermined amount of audio information is stored in the audio information output buffer memory. Is repeated.

When a predetermined amount of audio information has been stored in the audio information output buffer memory in the judgment of step 33, the flow advances to step 34 to read out the audio information from the audio information output buffer memory and output the external output via the external interface. The output of audio information to be output to the device is started, and the input of audio information for storing audio information input from an input device via an external interface in an audio information input buffer memory is started.

The flow advances to step 35 to determine whether there is a request for ending the recording / reproducing processing of the audio information. If there is, the audio recording / reproducing processing is terminated. It is determined whether or not a predetermined amount of audio information is stored in the memory. If the predetermined amount of audio information is stored, the process proceeds to step 39, where a predetermined amount of audio information is read from the audio information input buffer memory, and the information is recorded on the optical disk by the information recording unit. Is recorded on the track n at the same address as the storage destination of the audio information reproduced from the step, and the process returns to the step 35.

At the time of this processing, the controller sets the writing speed of the audio information to the optical disk to be faster than the speed of storing the audio information from the input device to the audio information input buffer memory, and writes the audio information to the audio information input buffer memory. The data transfer to the optical disk is controlled so as not to be lost so as not to be interrupted.

If the predetermined amount of audio information has not been stored in the audio information input buffer memory in step 36, the flow advances to step 37 to determine whether or not the audio information output buffer memory has a predetermined amount of free space. If there is a vacancy, the process proceeds to step 40, where a predetermined amount of audio information is reproduced from track n of the optical disk, and stored in the audio information output buffer memory.
It returns to the process of 5.

If it is determined in step 37 that the audio information output buffer memory does not have a predetermined capacity,
Proceeding to step 38, the reproduction of audio information from the optical disk is interrupted by waiting for a predetermined time set in advance,
It returns to the process of step 35. When the reproduction of the audio information is interrupted, the output of the audio information from the audio information output buffer memory continues, and the audio output from the output device can be performed without interruption.

It should be noted that it is determined whether or not the recording / reproducing process end request has been made, whether or not a predetermined amount of audio information has been stored in the audio information input buffer memory, and whether or not there has been a predetermined amount of free space in the audio information output buffer memory. It is not always necessary to perform the above processing in the order described above. For example, in the above process, after determining whether a predetermined amount of audio information has been stored in the audio information input buffer memory, it is determined whether a predetermined amount of free space has occurred in the audio information output buffer memory. However, the processing order may be changed.

Further, the processing for determining whether or not recording / reproducing processing has been completed is performed after the processing for determining whether or not a predetermined amount of audio information has been stored in the audio information input buffer memory, or in the audio information output buffer memory. The determination as to whether or not an empty area has occurred may be performed after the determination processing.

The processing for outputting the audio information reproduced from the optical disk 13 via the audio information output buffer memory and the processing for storing the audio information input from the input device in the audio information input buffer memory in this manner. Starting at the same time, by recording the audio information in the audio information input buffer memory on the optical disk 13 while the reproduction of the optical disk 13 is being waited, processing as if recording and reproduction on the same optical disk were performed simultaneously. Can be.

Also, since the audio information input from the input device can be recorded by overwriting the area of the audio information previously recorded on the optical disc 13,
For example, music information of karaoke recorded on the first track is reproduced, and at the time of the reproduction, the audio information of the user input from the microphone and the music information are mixed and recorded on the first track again, A music CD into which a user's singing voice is imprinted can be easily created.
Therefore, it is possible to repeatedly perform multiplex recording on the recording area of the optical disc to record the audio information in a superimposed manner, and to effectively utilize the recording area.

Next, still another embodiment of the present invention will be described. In the optical disk recording / reproducing apparatus according to the above-described embodiment, the case has been described in which the function according to the present invention is incorporated in advance in each unit such as a controller. CD-ROM, CD-R, C
If the information is provided by recording on various recording media such as D-RW, DVD, MO, and floppy disk, the control program is installed in an existing optical disk recording / reproducing apparatus via the recording medium, and functions according to the present invention are provided. Can be easily realized.

That is, although not shown, an information recording / reproducing processing program for causing a computer to realize the following functions is recorded on various computer-readable recording media as described above.

An information reproducing function for reproducing information recorded on a recording medium, an information input function for inputting information, and information temporarily reproduced by the information reproducing function are temporarily stored in an output information temporary storage area before output. An information storage function for temporarily storing information input by the information input function in a recording information temporary storage area before recording; an information output function for outputting information stored in the output information temporary storage area; An information recording function for recording information stored in a temporary storage area on the recording medium.

In order to keep the reading of information from the output information temporary storage area uninterrupted, a predetermined amount of information always remains in the output information temporary storage area while the information is output at a higher speed and intermittently. The speed at which the information is input from the recording medium while reproducing the information on the recording medium and always keeping a predetermined amount of free space in the temporary storage area for recording information so that writing of the information to the temporary storage area for recording is not disabled is reduced. Also, information is recorded on the recording medium while the information is recorded on the recording medium while reproducing the information on the recording medium quickly and intermittently. An information recording / reproducing control function for making the recording area of the information on the recording medium different from the storage area of the recording medium or the storage area of the reproduced information.

Then, by installing the information recording / reproducing processing program into the controller of the optical disk recording / reproducing apparatus having only the conventional functions via the recording medium, the control processing of the present invention shown in FIGS. Can be performed. The specific processing operation has already been described in the above-described embodiment, and a description thereof will be omitted.

In the above embodiment, the information recorded on the optical disk and the information recorded on the optical disk have been described as audio information such as music and voice. However, program data, document data, image data, The same can be applied to various information such as video data and the like.

For example, in the case of video data, while reproducing a background video recorded in advance on an optical disk, a video to be superimposed on the video is photographed by an input device such as a video camera, and the video data and the reproduced video data are recorded. Are superimposed and recorded on an optical disk, an optical disk on which an original moving image is recorded can be easily created.

Further, in the above embodiment, the case where the recording medium is an optical disk such as a CD-R or a CD-RW has been described, but other media such as an optical disk such as an MO or a DVD or a tape and the medium are used. An information recording / reproducing apparatus serving as a recording / reproducing medium can be similarly implemented.

[0161]

As described above, according to the information recording / reproducing apparatus, the information recording / reproducing method, and the computer-readable recording medium on which the information recording / reproducing processing program of the present invention is recorded, the information recorded on the recording medium can be obtained. Can be reproduced and output without interruption, and information can be recorded on the same recording medium without interruption in parallel with the reproduction.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a configuration example of an optical disc recording / reproducing apparatus which is an embodiment of an information recording / reproducing apparatus of the present invention.

FIG. 2 is a functional block diagram for explaining a process according to the present invention of the optical disc recording / reproducing apparatus shown in FIG. 1;

FIG. 3 is an explanatory diagram showing an example of a recording format on the optical disc shown in FIG.

FIG. 4 is a flowchart showing a recording / reproducing parallel process for the same optical disk according to the first and fifth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

FIG. 5 is a flowchart showing recording / reproducing parallel processing for the same optical disk according to the third and sixth aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

FIG. 6 is a flowchart showing a recording / reproducing parallel process for the same optical disk according to the fourth and seventh aspects of the present invention in the optical disk recording / reproducing apparatus shown in FIG.

[Explanation of symbols]

 1: spindle motor 2: coarse motor 3: optical pickup 4: rotation control system 5: coarse motor control system 6: pickup control system 7: signal processing system 8: buffer memory 9: controller 10, 11, 12: external interface 13: Optical disc 20: Information reproducing unit 21: Information recording unit 30: EFM recording sequence 31, 33: Link sector 32: User data block

Claims (8)

[Claims] 1. An information reproducing means for reproducing information recorded on a recording medium, an information input means for inputting information, and an output information temporary storage for temporarily storing information reproduced by the information reproducing means before output. Information storage means having an area and a record information temporary storage area for temporarily storing information input by the information input means before recording, and information output means for outputting information stored in the output information temporary storage area Information recording means for recording information stored in the recording information temporary storage area on the recording medium, and a predetermined amount always stored in the output information temporary storage area so that reading of information from the output information temporary storage area is not interrupted. The information output means outputs the information at a higher speed and intermittently while the information is output, while intermittently reproducing the information from the recording medium. The information input means inputs information at a higher speed and intermittently while keeping a predetermined amount of free space in the recording information temporary storage area so as not to make it impossible to write information. And an information recording / reproducing control unit for recording information on the recording medium while reproducing the information from the recording medium. 2. An information reproducing unit for reproducing information recorded on a recording medium, an output information temporary storage unit for temporarily storing information reproduced by the unit before outputting, and an information reproducing unit for storing information stored in the unit. Information output means for outputting; information input means for inputting information; recording information temporary storage means for temporarily storing information input by the means before recording; and information stored in the means to the recording medium. Information recording means for recording; and a speed at which the information output means outputs information while always keeping a predetermined amount of information in the output information temporary storage means so that reading of information from the output information temporary storage means is not interrupted. The information on the recording medium is reproduced faster and intermittently, and a predetermined value is always stored in the recording information temporary storage means so that the information cannot be written into the recording information temporary storage means. Information is recorded on the recording medium intermittently at a speed higher than the speed at which the information input means inputs information while maintaining an empty area, and the information on the recording medium is reproduced while reproducing the information on the recording medium. And an information recording / reproducing control means for recording the information. 3. The information recording / reproducing apparatus according to claim 1, further comprising: means for making a recording destination area of the information recorded on the recording medium by the information recording means different from a storage area of the reproduced information. An information recording / reproducing apparatus characterized by the above-mentioned. 4. The information recording / reproducing apparatus according to claim 1, further comprising: means for making a recording destination area of the information recorded on the recording medium by the information recording means the same as a storage area of the reproduced information. An information recording / reproducing apparatus characterized by the above-mentioned. 5. A method for reproducing information recorded on a recording medium, temporarily storing the reproduced information in an output information temporary storage area, outputting the information to the outside, inputting information, and inputting the input information. When the information is temporarily stored in the recording information temporary storage area and then recorded on the recording medium and the information on the recording medium is recorded while reproducing the information on the recording medium, the information from the output information temporary storage area is The information on the recording medium is reproduced intermittently faster than the speed at which the information is output while intermittently keeping a predetermined amount of information in the output information temporary storage area so that the reading is not interrupted. The recording speed is intermittently higher than the speed of inputting the information while keeping a predetermined amount of free space in the recording information temporary storage area so that writing of information to the area is not disabled. An information recording / reproducing method characterized by recording information on a medium. 6. The information recording / reproducing method according to claim 5, wherein a recording destination area of the information on the recording medium is different from a storage area of the reproduced information. 7. The information recording / reproducing method according to claim 5, wherein a recording destination area of the information on the recording medium is made the same as a storage area of the reproduced information. 8. An information reproducing function for reproducing information recorded on a recording medium, an information input function for inputting information, and information reproduced by the information reproducing function are temporarily stored in an output information temporary storage area before output. An information storage function of temporarily storing information input by the information input function in a recording information temporary storage area before recording; an information output function of outputting information stored in the output information temporary storage area; An information recording function of recording information stored in a recording information temporary storage area on the recording medium; and a predetermined amount of information is always stored in the output information temporary storage area so that reading of information from the output information temporary storage area is not interrupted. If the information on the recording medium is reproduced intermittently faster than the output speed of the information while remaining, the information cannot be written to the recording information temporary storage area. The information is recorded on the recording medium intermittently faster than the speed of inputting the information while always maintaining a predetermined amount of free space in the recording information temporary storage area so that the information on the recording medium is reproduced. While recording information on the recording medium, the recording destination area of the information on the recording medium is different from the storage area of the reproduced information, or the recording destination area of the information on the recording medium is reproduced. A computer-readable recording medium on which an information recording / reproducing processing program for causing a computer to realize an information recording / reproducing control function for making the same information storage area as the information storage area is recorded.