JPH11176065A - Disk unit - Google Patents

Abstract

(57) [Summary] An object of the present invention is to use a disk-type recording medium,
In a disk device that performs recording and reproduction operations on a disk-type recording medium by the same means, and performs recording and reproduction operations exclusively, the purpose is to simultaneously reproduce recorded information already recorded on the disk-type recording medium. When performing additional recording of new information, without performing a recording operation and a reproduction operation on the disk-type recording medium at the same time, reproduction of the already recorded information serving as guide information when recording new information,
And recording the new information on the disk-type recording medium at the same time. The recorded information serving as guide information for recording new information is read in advance into reproduction information storage means provided in a disk device, and the reproduction information is recorded when the new information is actually recorded. By reading the recorded information from the information storage means, the reproduction of the recorded information and the recording of the new information are simultaneously realized without simultaneously performing the recording operation and the reproducing operation on the disk-type recording medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk apparatus that uses a disk-type recording medium, performs both information recording operation and information reproduction operation by one means, and performs recording and reproduction operations exclusively. In the case of additionally recording new information for the purpose of simultaneous reproduction with the already recorded information already recorded on the disc type recording medium, Without simultaneously generating a recording operation and a reproduction operation, it is an object to simultaneously reproduce reproduction of recorded information serving as guide information for recording the new information and recording of new information on the disc-type recording medium. I do.

[0002]

2. Description of the Related Art A conventional disk device using a disk-type recording medium is intended only to record or reproduce information. Further, a disk device using a conventional disk-type recording medium is different from a disk device using a tape as a recording medium having recording means and reproducing means separately.
The information recording operation and the information reproduction operation are combined by one unit, and the recording operation and the reproduction operation can be performed exclusively. Due to such a configuration, reproduction of information from the disk-type recording medium and recording of information on the disk-type recording medium cannot be performed at the same time. Therefore, when new information for simultaneous reproduction with recorded information already recorded on a recording medium realized by an apparatus using a tape as a recording medium is additionally recorded on the recording medium, the new information is used as guidance information of the new information. An operation such as reproducing recorded information cannot be realized, and simultaneous execution of such a recording operation and a reproducing operation has not been considered.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to perform a recording operation and a reproducing operation on a disk-type recording medium by using the same means, and to exclusively perform the recording operation and the reproducing operation. When performing additional recording of new information for the purpose of simultaneous reproduction with recorded information already recorded on a disk-type recording medium, a recording operation and a reproduction operation on the disk-type recording medium are simultaneously generated in the disk device. In other words, reproduction of the recorded information, which is guidance information for recording the new information, and recording of the new information on the disk-type recording medium are simultaneously realized.

[0004]

SUMMARY OF THE INVENTION In a disk device that uses a disk-type recording medium, performs recording and reproduction operations on the disk-type recording medium by the same means, and exclusively performs recording and reproduction operations. When performing additional recording of new information for the purpose of simultaneous reproduction with recorded information already recorded on the type recording medium, the recorded information serving as guide information for recording the new information is stored in a disk device. The read information is read in advance from the read information storage means when the new information is actually recorded, and the recording operation and the read operation on the disk-type recording medium are performed. , The reproduction of the already recorded information and the recording of the new information are realized at the same time.

[0005]

FIG. 1 shows the configuration of a disk drive according to the present invention.

FIG. 1 shows a disk-shaped recording medium 101,
02 is a disk recording / reproducing means, 103 is a recording processing means,
104 is video information input means, 105 is audio information input means, 106 is reproduction processing means, 107 is reproduction information storage means, 108 is video information output means, 109 is audio information output means, 110 is disk drive means, 111 is system Using a disk type recording medium constituted by the control means,
This is a disk device that performs a recording operation and a reproducing operation on a disk-type recording medium by the same means, and exclusively performs a recording operation and a reproducing operation. Hereinafter, each block shown in FIG. 1 will be described.

[0007] The disk-type recording medium 101 records audio information and video information. It is a disk-shaped recording medium such as an optical disk or a magnetic disk.

The disk recording / reproducing means 102 exclusively records information or reproduces information on the disk type recording medium 101. If the disk type recording medium 101 is an optical disk, it is an optical pickup, and if it is a magnetic disk, it is a magnetic head.

The recording processing means 103 includes the video information input means 1
The recording information transmitted from the audio information input unit 104 and the audio information input unit 104 is subjected to processing such as compression, addition of an error correction code, and modulation. Dedicated LS
I or DSP.

The video information input means 104 receives video recording information input from outside the disk device. CC
This is realized by a D / A / D converter and the like.

The audio information input means 105 receives audio recording information input from outside the disk device. It is realized by a microphone, an amplifier, an A / D converter, and the like.

The reproduction processing means 106 performs processing such as demodulation, error detection, error correction, and decompression on the information reproduced from the disk type recording medium 101 by the disk recording / reproduction means 102, and reproduces the information for output to the outside of the disk device. Generate information. This is realized by a dedicated LSI or DSP.

The reproduction information storage means 107 is a reproduction processing means 1
06 is temporarily stored. This is realized by a semiconductor memory.

The video information output means 108 outputs the reproduced video information stored in the reproduced video storage means 107 to the outside of the disk device. This is realized by a D / A converter, an amplifier, and a monitor.

The audio information output means 109 outputs the reproduced audio information stored in the reproduced audio storage means 106 to the outside of the disk device. This is realized by a D / A converter, an amplifier, and a speaker.

The disk drive means 110 performs control for performing stable recording and reproduction operations on the disk-type recording medium 101. This is realized by a spindle motor, actuator, and servo mechanism.

The system control means 111 is realized by a microcomputer which manages the entire disk device.

(Case of Adding Audio Information to Video Information) An embodiment of the present invention will be described with reference to FIG. First, a case will be described in which video information is recorded on the disk-type recording medium 101 shown in FIG. 1 and audio information for simultaneous reproduction with the video information is additionally recorded.

At the time of reproduction, in order to synchronize the video information already recorded on the disk-type recording medium with the audio information to be additionally recorded, the audio information recorded on the disk-type recording medium is additionally recorded when the audio information is additionally recorded. Video information must be reproduced as guidance information. This means that the recording operation and the reproduction operation are performed simultaneously. Since conventional disk devices can only perform recording and playback operations exclusively,
It has not been possible to realize additional recording of audio information for the purpose of simultaneous reproduction with the video information recorded on the disk-type recording medium.

On the other hand, in the disk device shown in FIG. 1 according to the present invention, before the additional recording of the audio information is started, the video information to be used as guide information from the disk type recording medium 101 by the disk recording / reproducing means 102 is read and reproduced. 1
06 and stored in the reproduction information storage unit 107. After that, the video information serving as guide information is read from the reproduction information storage unit 107 and output by the video information output unit 108. The output of the video information is used as a guide to input the audio information.

The audio information is input from the audio information input means 105, passes through the recording processing means 103, and is recorded on the disk type recording medium 101 by the disk recording / reproducing means 102. At this time, the reading of the video information is performed by the reproduction information storage unit 1.
07, the disc recording / reproducing means 10
2 and the disk-type recording medium 101 are allowed to occupy the recording operation of the audio information.

As described above, according to the present invention, a recording operation and a reproducing operation on a disk-type recording medium are performed by the same means using a disk-type recording medium, and the recording operation and the reproducing operation are exclusively performed. When performing additional recording of audio information for the purpose of simultaneous reproduction with video information already recorded on the disk-type recording medium in the disk device to be performed, the recording operation and the reproduction operation on the disk-type recording medium do not occur simultaneously. In addition, reproduction of video information as guide information and recording of audio information as new information on a disk-type recording medium can be realized at the same time.

(When video information is added to audio information) Next, audio information is recorded on the disk-type recording medium 101 shown in FIG. 1, and video information for simultaneous reproduction with the audio information is added. The case of recording will be described.

At the time of reproduction, in order to synchronize the audio information already recorded on the disc-type recording medium with the video information to be additionally recorded, when the video information is additionally recorded, the audio information recorded on the disc-type recording medium is recorded. It is necessary to reproduce the voice information that is present as guidance information. This means that the recording operation and the reproduction operation are performed simultaneously. Since conventional disk devices can only perform recording and playback operations exclusively,
It has not been possible to realize additional recording of video information for the purpose of simultaneous reproduction with audio information recorded on the above-mentioned disk type recording medium.

On the other hand, in the disk apparatus shown in FIG. 1 according to the present invention, before the additional recording of the video information is started, audio information to be used as guide information from the disk type recording medium 101 by the disk recording / reproducing means 102 and reproduction processing means 1
06 and stored in the reproduction information storage unit 107. After that, audio information serving as guidance information is read from the reproduction information storage means 107 and output by the audio information output means 109. The video information is input using the output of the audio information as a guide.

The video information is inputted from the video information input means 104, passes through the recording processing means 103, and is recorded on the disc type recording medium 101 by the disc recording / reproducing means 102. At this time, the reading of the audio information is performed by the reproduction information storage unit 1.
07, the disc recording / reproducing means 10
2 and the disk-type recording medium 101 are allowed to be occupied by video information recording operations.

As described above, according to the present invention, the recording operation and the reproducing operation for the disk-type recording medium are performed by the same means using the disk-type recording medium, and the recording operation and the reproducing operation are exclusively performed. In the disc device to be performed, when performing additional recording of video information for the purpose of simultaneous reproduction with audio information already recorded on the disc type recording medium, without simultaneously generating a recording operation and a reproduction operation on the disc type recording medium, The reproduction of the audio information as the guide information and the recording of the video information as the new information on the disk-type recording medium can be realized at the same time.

(When Adding Second Audio Information to First Audio Information) Next, the disk-type recording medium 101 shown in FIG.
A case will be described in which the first audio information is recorded in the first audio information, and the second audio information for simultaneous reproduction with the first audio information is additionally recorded.

At the time of reproduction, in order to synchronize the first audio information already recorded on the disk-type recording medium with the second audio information to be additionally recorded, when the second audio information is additionally recorded, It is necessary to reproduce the first audio information recorded on the disk-type recording medium as guidance information. This means that the recording operation and the reproduction operation are performed simultaneously. In the conventional disk device, the recording operation and the reproduction operation can only be performed exclusively. Therefore, the second audio information for the purpose of simultaneous reproduction with the first audio information recorded on the disk-type recording medium is used. It was impossible to achieve additional records.

On the other hand, in the disk apparatus shown in FIG. 1 according to the present invention, before the additional recording of the second audio information is started, the disk recording / reproducing means 102 is read from the disk type recording medium 101.
The first voice information to be used as guide information is read out and stored in the reproduction information storage unit 107 via the reproduction processing unit 106. Thereafter, the first audio information serving as guide information is read from the reproduction information storage unit 107 and output by the audio information output unit 109. The output of the first audio information is used as a guide to input the second audio information.

The second voice information is voice information input means 105
And is recorded on the disk type recording medium 101 by the disk recording / reproducing means 102 via the recording processing means 103. At this time, since the reading of the first audio information is performed from the reproduction information storage means 107, the disk recording / reproduction means 102 and the disk-type recording medium 101 are allowed to occupy the recording operation of the second audio information. .

As described above, according to the present invention, a disk-type recording medium is used, a recording operation and a reproducing operation on the disk-type recording medium are performed by the same means, and the recording operation and the reproducing operation are exclusively performed. When performing additional recording of second audio information for the purpose of simultaneous reproduction with the first audio information already recorded on the disk-type recording medium, the recording operation and the reproducing operation on the disk-type recording medium The reproduction of the first audio information as the guide information and the recording of the second audio information, which is new information, on the disk-type recording medium can be realized at the same time without being generated at the same time.

(When Adding Second Video Information to First Video Information) Next, the disk-type recording medium 101 shown in FIG.
A case will be described in which the first video information is recorded in the first video information, and the second video information for simultaneous reproduction with the first video information is additionally recorded.

At the time of reproduction, in order to synchronize the first video information already recorded on the disk-type recording medium with the second video information to be additionally recorded, when the second video information is additionally recorded, It is necessary to reproduce the first video information recorded on the disk-type recording medium as guide information. This means that the recording operation and the reproduction operation are performed simultaneously. Since the conventional disk device can only perform the recording operation and the reproduction operation exclusively, the second video information for the purpose of simultaneous reproduction with the first video information recorded on the disc-type recording medium is used. It was impossible to achieve additional records.

On the other hand, in the disk device shown in FIG. 1 according to the present invention, before the additional recording of the second video information is started, the disk recording / reproducing means 102
The first video information to be used as guide information is read out and stored in the reproduction information storage means 107 via the reproduction processing means 106. Thereafter, the first video information serving as guide information is read from the reproduction information storage unit 107 and output by the video information output unit 108. The second video information is input using the output of the first video information as a guide. The second video information is input from the video information input means 104, and is recorded on the disk type recording medium 101 by the disk recording / reproducing means 102 via the recording processing means 103. At this time, since the reading of the first video information is performed from the reproduction information storage means 107, the disk recording / reproducing means 102 and the disk type recording medium 101 are allowed to occupy the recording operation of the second video information. .

As described above, according to the present invention, a disk-type recording medium is used, a recording operation and a reproducing operation on the disk-type recording medium are performed by the same means, and the recording operation and the reproducing operation are exclusively performed. When performing additional recording of the second video information for the purpose of simultaneous reproduction with the first video information already recorded on the disc-type recording medium, the recording operation and the reproducing operation on the disc-type recording medium The reproduction of the first video information serving as the guide information and the recording of the second video information serving as the new information on the disc-type recording medium can be realized at the same time without simultaneously generating the information.

In the disk device shown in FIG. 1, while the recording operation is being performed on the disk-type recording medium 101, the reproduction information cannot be replenished in the reproduction information storage means 107. To be solved.

FIG. 2 shows a configuration in which a first recording information storage means 201 and a second recording information storage means 202 for temporarily storing information input to the disk device are added to FIG. This is a two-part configuration of the information storage means 203 and the second reproduction information storage means 204. First recording information storage means 201, second recording information storage means 202, first reproduction information storage means 203, and second reproduction information storage means 204
Can be realized by semiconductor memories, respectively.

The first recording information storage means 201 and the second recording information storage means 202 alternately store a certain amount of information input to the disk device. With this configuration, the information stored in the first recording information storage means 201 is transferred to the disk-type recording medium 1.
01, the second recording information storage means 202 can store the information input to the disk device, and conversely, the information stored in the second recording information storage means 202 can be stored in a disk type recording medium. The first recording information storage unit 201 can store information input to the disk device while recording the information on the disk 101.

When recording the information stored in the first recording information storage means 201 and the second recording information storage means 202 on a disk type recording medium, the information is input at a higher speed than the information input speed to the disk device. It is not necessary to always perform a recording operation on a disk-type recording medium.

On the other hand, the first reproduction information storage means 201 and the second reproduction information storage means 202 alternately store a certain amount of information reproduced from the disk type recording medium 101. With this configuration, while the information stored in the first reproduction information storage unit 201 is being output from the disk device, the second reproduction information storage unit 202 can store the reproduction information from the disk type recording medium 101. Conversely, the second reproduction information storage means 202
While the information stored in the disk-type recording medium 101 is being output from the disk device, the reproduction information from the disk-type recording medium 101 can be stored.

Also, by reproducing information stored in the first reproduction information storage means 201 and the second reproduction information storage means 202 at a speed higher than the information output speed from the disk device, it is possible to always reproduce the information on the disk type recording medium. There is no need to perform any operations.

The first recording information storage means 20 described above
1. By providing the second recording information storage unit 202, the first reproduction information storage unit 203, and the second reproduction information storage unit 204, the recording operation and the reproduction operation for the disk type recording medium can be performed intermittently. The reproduction operation and the recording operation can be performed exclusively. Therefore, FIG.
In the disk device with the configuration shown in (1), when performing additional recording of new information for the purpose of simultaneous reproduction with recorded information already recorded on the disk-type recording medium, recording operation and reproduction operation on the disk-type recording medium occur simultaneously. Without letting
The reproduction of the already-recorded information required as the guide information and the recording of the new information on the disk-type recording medium can be simultaneously realized. Further, in the disk device having the configuration shown in FIG. 2, even while the information is being input to the disk device, it is possible to supplement the recorded information that needs to be reproduced as the guide information. This can be performed regardless of the amount of information.

[0044]

According to the present invention, there is provided a disk apparatus which uses a disk-type recording medium, performs recording and reproduction operations on the disk-type recording medium by the same means, and exclusively performs recording and reproduction operations. When performing additional recording of new information for the purpose of simultaneous reproduction with already-recorded information already recorded on the type recording medium, the new information is recorded without simultaneously performing a recording operation and a reproduction operation on the disk type recording medium. At the same time, reproduction of the recorded information serving as guide information and recording of the new information on a disk-type recording medium can be simultaneously realized.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

 101: Disk-type recording medium 102: Disk recording / reproducing means 103: Recording processing means 104: Video information input means 105: Audio information input means 106: Reproduction processing means 107: Playback information storage means 108 Video information output means 109 Audio information output means 110 Disk drive means 111 System control means 201 First recording information storage means 202 Second Recorded information storage means 203 ··· First playback information storage means 204 ··· Second playback information storage means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akihiro Asada 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Pref. Hitachi, Ltd. Multimedia Systems Development Division

Claims (5)

[Claims] 1. A disk device which uses a disk-type recording medium, performs recording and reproduction operations on the disk-type recording medium by the same means, and exclusively performs recording and reproduction operations. Has a reproduction information storage means for storing the recorded information already recorded in, when performing the additional recording of new information on a disk-type recording medium, the recorded information is used as guidance information for recording the new information By reading the recorded information from the reproduction information storage unit in advance and reading the recorded information from the reproduction information storage unit, the reproduction of the recorded information can be performed without simultaneously performing the recording operation and the reproduction operation on the disk-type recording medium. And recording the new information at the same time. 2. The disk device according to claim 1, wherein
The disk device according to claim 1, wherein the information already recorded on the disk-type recording medium is video information, and the new information additionally recorded is audio information. 3. The disk drive according to claim 1, wherein
The disk device according to claim 1, wherein the recorded information already recorded on the disk-type recording medium is audio information, and the new information additionally recorded is video information. 4. The disk device according to claim 1, wherein
The disk device according to claim 1, wherein the recorded information already recorded on the disk type recording medium is first audio information, and the new information additionally recorded is second audio information. 5. The disk drive according to claim 1, wherein
The disk device according to claim 1, wherein the recorded information already recorded on the disk-type recording medium is first video information, and the new information to be additionally recorded is second video information.