JP2005149560A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device which can record desired program video data without interruption when program video data are recorded over a plurality of optical disks. <P>SOLUTION: After write-in of program video data for an optical disk 100a is started (S4→S5), write-in is stopped at a point of time of receiving CM broadcasting, when a residual recording scheduled time is longer than a residual recordable time of the optical disk 100a and it is within a previously set prescribed residual time (S7→S8→S9→S10), the disk is changed to a new optical disk 100b (S11). And write-in of program video data for the optical disk 10b is started from a point of time of start of receiving program broadcasting again, and the same operation is performed successively. And write-in is finished at a point of time of finish of the program broadcasting (S6→S12), finalizing processing of the optical disk for which write-in is performed this time is performed successively (S13→S14→S15→S13). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an optical disk apparatus that performs recording / reproduction of an optical disk, and more particularly to an optical disk apparatus that can store a plurality of optical disks and that automatically records and reproduces by replacing the optical disk.

At present, an optical disc apparatus that records a program desired by a user on an optical disc such as a DVD is widely used. In an optical disk apparatus, usually, a single optical disk for recording is mounted on the apparatus, and video data is written to the optical disk by a known method. However, when a program exceeding the capacity of a single optical disk is to be recorded, the optical disk must be replaced in the middle, so there is an optical disk device that stores a plurality of optical disks and automatically replaces them according to the user's request (for example, Patent Document 1). In such an optical disc apparatus, even if there is only one recording / reproducing unit equipped with an optical disc driving function and an optical pickup for recording / reproducing an optical disc, the recording / reproducing unit is provided with the disc changer function. The optical disk to be set can be exchanged. As a result, if the user makes an optical disk replacement request, the optical disk to be recorded can be replaced and recording can be continued.
JP 2001-176202 A

  However, when recording video data on an optical disc, the optical disc apparatus must perform finalization after writing the video data to the optical disc. This process closes the session by specifying prohibition of appending when writing in multi-session. If this process is not performed, video data recording will not be completed and cannot be read by other optical disk devices. End up.

  However, since this finalizing process usually takes several minutes to several tens of minutes, at least the time described above is required to finish recording on one optical disk and start recording on the next optical disk. For this reason, there is a time during which the video data cannot be recorded for the finalization processing time while the currently broadcast program is being recorded.

  Even if a buffer is incorporated in the optical disc device to eliminate this unrecordable time, the amount of video data over a few tens of minutes is enormous. It will be very high.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disc apparatus that can eliminate almost no recording time when recording video data across a plurality of optical discs and can record desired video data almost seamlessly.

  The present invention includes a receiving means for receiving a broadcast signal of a program, a recording means for irradiating an optical disc with laser light to record a program received by the receiving means, an optical disc storage means for storing a plurality of optical discs, and an optical disc In a plurality of optical disks stored in the storage means, the recording means records the program during recording of the program by the recording means in an optical disk apparatus provided with a disk change means for exchanging the optical disk for recording the program. To determine whether or not to replace the optical disk to be replaced with another optical disk stored in the optical disk storage means, and if it is determined to replace the optical disk with another optical disk, the recording means performs a finalizing process on the optical disk on which the program is recorded Without changing the optical disc for recording the program to the disc change means, and After completion of the program recorded on, is characterized by comprising a control means for causing the recording means to finalizing process for the optical disc has been replaced without causing the finalization process.

  In this configuration, if the control unit determines to replace the optical disc on which the program is recorded while the recording unit is recording the program on the optical disc, the control unit does not perform finalization processing on the optical disc currently being recorded. The disk changing means is controlled so that the replacement is performed as it is. Then, the control means controls the disk change means and the recording means so as to sequentially perform the finalizing process of the recorded optical disk after the recording of all the programs is completed. As a result, the time required for the exchange during the program recording is only the disk change time, not including the finalize processing time, and is thus shortened.

  In the present invention, the remaining time of the program recorded on the optical disc by the control means is longer than the recordable time of the program in the unrecorded area of the optical disc on which the recording / reproducing means records the program. When the possible time is shorter than a predetermined time, it is determined that the optical disk on which the program is recorded is replaced with another optical disk stored in the optical disk storage means.

  In this configuration, if the recordable time of the program in the unrecorded area of the optical disc is shorter than the remaining time of the program being recorded and shorter than a preset time, the control means performs the optical disc replacement process. Let it be done. As a result, a new optical disc can be exchanged at a convenient timing set by the user before the unrecorded area of the optical disc currently being recorded is completely eliminated.

  Further, the present invention has a commercial determination function for determining whether the broadcast signal received by the reception means is a program main part or a commercial inserted in the middle of the program main part by the control means, When it is determined that the commercial determination function is a commercial, it is characterized in that it is determined whether or not the optical disk for recording the program is replaced with another optical disk stored in the optical disk storage means.

  In this configuration, the control means determines whether the broadcast signal currently being received is a main program or a commercial, and the time when the control signal is commercial is determined as a timing for determining whether or not to replace the optical disc. Control is performed so that the optical disk to be recorded is replaced when the requirement, that is, the recordable time of the program in the unrecorded area of the optical disk is shorter than the remaining time of the program being recorded and shorter than a preset time.

  According to the present invention, even when the video data of a program is recorded on a plurality of optical disks, the finalization process is not performed for each optical disk and the finalization process is performed after all the video data has been written. The time is short, and the time during which program video data is interrupted can be made extremely short.

  Further, according to the present invention, the finalizing process is performed after all the discs are written, and the commercial data is detected and the optical disc to be written in the commercial is exchanged, so that the video data of the desired program is interrupted. Can be recorded without any problem.

  An optical disc apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an outline of an optical disk apparatus according to the present invention.

  As shown in FIG. 1, the optical disc apparatus includes an optical disc holding member 1 that holds a plurality of optical discs, a holding member rotating motor 4 that rotates the optical disc holding member 1, a spindle motor 2 that rotates the optical disc, and a holding device. Driver ICs 8 and 9 for controlling the member rotating motor 4 and the spindle motor 2 respectively, and an optical pickup 3 for reading information on the optical disk and writing information. The optical disk apparatus also reproduces video data from the optical pickup 3, converts program video data input from the broadcast signal receiving unit 6 into video data to be recorded on the optical disk, and outputs the video data to the optical pickup 3. A video output unit 7 that converts the video data from the recording / playback unit 5 into a desired video signal and outputs the video signal; and a predetermined program video data by extracting a video signal of a desired program from the broadcast signal received by the antenna 201 The broadcast signal receiving unit 6 corresponding to the “reception unit” of the present invention for conversion into the above and the control unit 10 for controlling the entire optical disc apparatus including these units are provided.

  A plurality of optical discs 100a to 100n (only two optical discs are shown in FIG. 1 but there are other optical discs that are not shown), and an optical disc holding member 1 having a concave portion for placing an optical disc on the surface at an equal angle. Is disposed in each recess. The optical disk holding member 1 is pivotally supported by a turntable attached to a holding member rotating motor 4. When an optical disk replacement command is input from the control unit 10 to the driver IC 8, the driver IC 8 controls the rotation of the holding member rotating motor 4 so that the optical disk holding member 1 rotates at a predetermined angle. Thus, by rotating the optical disc holding member 1, the optical disc 100a to be reproduced or recorded is moved to the recording / reproducing position where the spindle motor 2 and the optical pickup 3 are disposed. Here, the optical disk holding member 1 corresponds to the “optical disk storage means” of the present invention, and the holding member rotating motor 4 and the driver IC 8 correspond to the “disk change means” of the present invention.

  When the optical disk 100a is disposed at the recording / reproducing position, a turntable provided in the spindle motor 2 lifts the optical disk 100a from the optical disk holding member 1 by a predetermined amount, and a chucking member (not shown) presses the upper surface of the optical disk 100a. The optical disc 100a is pivotally supported on the turntable. When the optical disc 100a is pivotally supported by the turntable, the optical pickup 3 irradiates the optical disc 100a with laser light to reproduce information recorded on the optical disc 100a or record information on the optical disc 100a.

  Here, if a reproduction operation is input, the optical pickup 3 irradiates the optical disc 100a with laser light, receives the reflected light, reads the recorded information with optical data, and converts it into video data. To the recording / reproducing unit 5. The recording / reproducing unit 5 converts the video data input from the optical pickup 3 into a predetermined format and outputs it to the video output unit 7. The video output unit 7 converts the input data into an analog video signal and outputs it to an externally connected display or the like. Here, the optical pickup 3 and the recording / reproducing unit 5 correspond to the “recording means” of the present invention.

  On the other hand, when a recording operation is input, the recording / reproducing unit 5 converts the program video data input from the broadcast signal receiving unit 6 into video data and outputs the video data to the optical pickup 3. The optical pickup 3 records information by irradiating the optical disc with laser light in accordance with the input video data.

  Next, processing when the broadcast signal received by the broadcast signal receiving unit 6 is recorded on a plurality of optical disks will be described with reference to FIGS.

  FIG. 2 is a flowchart showing a process of recording video data on the optical disc. This flow shows the operation of the entire optical disc apparatus, and the control of these operations is performed by the control unit 10. In the following description, an optical disc apparatus having a commercial cut function will be described.

  First, when a disc eject operation is input from the user, the optical disc apparatus unloads the optical disc holding member 1. The user sets a plurality of optical disks 100 in a predetermined recess of the unloaded optical disk holding member 1 and performs a disk insertion operation. When the optical disc holding member 1 is set at a predetermined position, a turntable attached to the holding member rotating motor 4 pivotally supports the optical disc holding member 1. Then, by rotating the holding member rotating motor 4 at a predetermined number of rotations and rotating the optical disk holding member 1 at a predetermined speed, the optical disk 100a to be recorded is set at the recording / reproducing position, that is, the spindle motor 2 and the optical pickup 3 are installed. Move to the specified position. When the optical disc 100a to be recorded is set at the recording / reproducing position in this way, the turntable provided in the spindle motor 3 pivotally supports the optical disc 100a from below, and a chucking member (not shown) is attached to the upper surface of the optical disc 100a from above. The optical disc 100a is accurately mounted at the recording / reproducing position (S1).

  Next, the optical disk 100a is rotated at a predetermined angular velocity by the spindle motor 2, and the TOC area of the optical disk 100a is read from the optical pickup 3 to read the TOC information of the optical disk 100a, and the PCA area is irradiated with the laser light. Then, initial processing for data writing such as adjustment of laser beam intensity is performed (S2).

  Next, according to the program recording information input from the user, the broadcast signal receiving unit 6 extracts the broadcast signal of the program set by the user from the broadcast signal received by the antenna 201, generates program video data, and records it. Output to the playback unit 5. When the program video data is input (S3), the recording / reproducing unit 5 converts the program video data into video data of a predetermined format and outputs it to the optical pickup 3. The optical pickup 3 converts the input video data into an optical signal and starts writing the video data to the optical disc 100a (S4). Here, if the broadcast signal received by the broadcast signal receiving unit 6 is confirmed to be CM, the broadcast signal receiving unit 6 outputs CM data indicating that the broadcast signal is CM to the recording / reproducing unit 5, and the recording / reproducing unit 5 does not start writing, but waits until program video data is input (S3).

  When writing of the video data to the optical disc 100a is started, the recording / reproducing unit 5 sequentially converts the program video data sequentially input from the broadcast signal receiving unit 6 and outputs the program video data to the optical pickup 3, and the optical pickup 3 receives the input. The process of converting the video data thus converted into an optical signal and writing it to the optical disc 100a is continued (S5). Here, when the set program end time is reached, the broadcast signal receiving unit 6 ends the reception of the broadcast signal, and the recording / reproducing unit 5 stops outputting the video data to the optical pickup 3. Then, the optical pickup 3 finishes writing to the optical disc 100a (S11). On the other hand, if the program end time has not been reached, the recording / reproducing unit 5 continues to generate video data of a predetermined format from the input program video data and output it to the optical pickup 3 until the CM is input from the broadcast signal reception 6. The optical pickup 3 converts this video data into an optical signal and continues to write it on the optical disc 100a (S7).

  Next, when detecting the CM broadcast, the control unit 10 outputs the CM detection data to the recording / reproducing unit 5 (S7), and when the CM detecting data is input, the recording / reproducing unit 5 stops generating the video data, Write stop data is transmitted to the optical pickup 3. Here, as a CM detection method, in the case of analog broadcasting, a method of detecting a sudden change in the type of audio signal (eg, monaural, stereo, bilingual) included in the broadcast signal, or in the case of digital broadcasting There is a method for detecting CM from the accompanying information.

  When the write stop data is input, the optical pickup 3 stops writing to the optical disc 100a (S8).

  Next, the control unit 10 calculates and sets the remaining recordable time corresponding to the unrecorded area of the optical disc 100a that is currently set, based on the TOC information and the recording time counted by a time measuring unit (not shown). Compare the remaining program recording time. If the remaining recordable time of the optical disc 100a is shorter than the remaining time of the program, the system waits until the program broadcast signal is received again (S9 → S3). If the remaining recordable time of the optical disc 100a is longer than the remaining time of the program and the remaining recordable time of the optical disc 100a is longer than a predetermined time (for example, about 15 minutes), the program broadcast signal is received. Wait until. Then, the writing process is started again from the time when the broadcast signal receiving unit 3 resumes receiving the program broadcast signal (S9 → S10 → S3).

  On the other hand, if the remaining recordable time of the optical disc 100a is longer than the remaining time of the program and the remaining recording time is shorter than the predetermined time, the optical pickup 3 is returned to the initial position and the chucking member is released, The turntable installed in the spindle motor 2 is retracted downward, and the optical disc 100a is disposed in the recess of the optical disc holding member 1. Then, the optical disk holding member 1 is rotated by a predetermined angle, and the optical disk 100b (not shown) used for the next recording is moved to the recording / reproducing position. When the optical disc 100b is set at the recording / reproducing position, it is loaded in the same manner as in the case of the optical disc 100a described above, and initial processing for data writing is performed (S9 → S10 → S11 → S1 → S2).

  Then, it waits until the program broadcast signal is received by the broadcast signal receiver 6, and starts writing video data to the optical disc 100b by the same operation as described above when the program broadcast signal is received by the broadcast signal receiver 6. (S4). From such an optical disk replacement to resumption of writing is only the optical disk replacement operation time and the initial processing time for writing, it is about several tens of seconds. For this reason, the optical disk replacement process can be completed during the CM broadcast, and it is possible to prevent a time zone that cannot be recorded during the program broadcast to be recorded.

  Thereafter, the writing process and the writing stop process are performed on the optical disc 100b as in the case of the optical disc 100a (S5 → S6 → S7 → S8 → S9), and the remaining recording time of the optical disc 100b is stopped while the writing is stopped by the CM. If the time is shorter than the predetermined time (S10), the disk exchange process as described above is performed (S11), and a new optical disk 100c (not shown) is loaded (S1).

  Next, with respect to the optical disc 100c as well, the initial processing for data writing is performed in the same manner as the optical discs 100a and 100b described above, and writing of video data to the optical disc 100c is started from the time when reception of the program broadcast signal is resumed (S2 → S3). → S4).

  During the writing process to the optical disc 100c (S5), when the set program end time is reached, the broadcast signal receiving unit 6 ends the reception of the broadcast signal, and the recording / reproducing unit 5 transfers the video data to the optical pickup 3. And the optical pickup 3 finishes writing to the optical disc 100c (S12).

  Next, the recording / reproducing unit 5 performs finalization processing of the optical disc 100c, and writes finalization processing information to the optical disc 100c via the optical pickup 3 (S13 → S14). Then, the optical disk is replaced in the same manner as the disk replacement process described above (S15). It is confirmed whether the video data has been written or finalized on the optical disk that has been exchanged and set at the recording / playback position, and the optical data on which the video data has been written but not finalized, that is, the current video recording process. In the case of the optical disk on which the video data is written (in this embodiment, the optical disks 100a and 100b), finalization processing is sequentially performed (S13 → S14). When it is confirmed that all the optical discs 100a, 100b, and 100c that have been subjected to the video recording process have been finalized, all the recording processes are completed.

  As described above, even when the set program is recorded on a plurality of optical disks, the finalizing process is not performed for each optical disk, and the finalizing process is performed after the entire program broadcast is recorded, thereby recording the optical disk. It is possible to quickly resume recording on the optical disk simply by exchanging the optical disk and performing an initial setting process. This prevents the program to be recorded from being partially recorded in a large amount.

  Further, as described above, the CM broadcast is detected, and the optical disk replacement process is performed during the CM broadcast, so that the program to be recorded can be recorded without interruption.

  In the above-described embodiment, the CM broadcast is detected and the disk replacement timing is set. However, the disk may be replaced when the disk capacity becomes full. With this configuration, it is possible to record a desired program broadcast without interruption as much as possible with respect to a broadcast signal of a broadcasting station without CM.

  Further, the disk may be replaced when a disk replacement command is input from the user. With such a configuration, the optical disk to be recorded can be exchanged at a position desired by the user. For example, when recording video over a plurality of programs, the optical disk can be exchanged between favorite programs.

  In the above embodiment, the program video data is recorded on three optical disks. However, the number of optical disks to be recorded is not limited to three, and any number of optical disks that can be mounted on the optical disk holding member 1 is used. For example, the above-described configuration can be applied, and the same effect can be obtained.

1 is a block diagram showing an outline of an optical disc apparatus according to an embodiment of the present invention. A flowchart showing a process of recording video data on an optical disc

Explanation of symbols

1-optical disk holding member 2-spindle motor 3-optical pickup 4-holding member rotating motor 5-recording / reproducing unit 6-broadcast signal receiving unit 7-video output unit 8, 9-motor driver IC
10-control units 100a, 100n-optical disc 201-antenna 202-external input terminal

Claims (4)

Receiving means for receiving a broadcast signal of a program;
Recording means for irradiating the optical disc with laser light to record the program received by the receiving means;
Optical disk storage means for storing a plurality of optical disks;
An optical disc apparatus comprising: a disc change unit that exchanges an optical disc on which the recording unit records the program among a plurality of optical discs stored in the optical disc storage unit;
During the recording of the program by the recording means, it is determined whether or not the optical disk for recording the program is replaced with another optical disk stored in the optical disk storage means. The disc change means exchanges the optical disc for recording the program without causing the means to perform the finalizing process on the optical disc on which the program is recorded, and the finalizing process is performed after the recording of the program on the optical disc is completed. Control means for causing the recording means to perform finalization processing on the optical disk replaced without
The control means has a commercial judgment function for judging whether the broadcast signal received by the receiving means is a program main part or a commercial inserted in the middle of the program main part, and this commercial judgment function Determine whether or not to replace the optical disk on which the program is recorded with another optical disk stored in the optical disk storage means,
In this determination, the remaining time of the program recorded on the optical disc is longer than the recordable time of the program in the unrecorded area of the optical disc on which the recording / reproducing means records the program, and this recordable time is determined in advance. An optical disc apparatus that determines to replace an optical disc for recording a program with another optical disc stored in the optical disc storage means when the time is shorter than a predetermined time. Receiving means for receiving a broadcast signal of a program;
A recording means for recording a program received by the receiving means by irradiating an optical disk with a laser beam; an optical disk storage means for storing a plurality of optical disks;
An optical disc apparatus comprising: a disc change unit that exchanges an optical disc on which the recording unit records the program among a plurality of optical discs stored in the optical disc storage unit;
During the recording of the program by the recording means, it is determined whether or not the optical disk for recording the program is replaced with another optical disk stored in the optical disk storage means. The disc change means exchanges the optical disc for recording the program without causing the means to perform the finalizing process on the optical disc on which the program is recorded, and the finalizing process is performed after the recording of the program on the optical disc is completed. An optical disk apparatus comprising control means for causing the recording means to perform finalization processing on an optical disk exchanged without any change.   The control means is configured such that the remaining time of the program recorded on the optical disc is longer than the recordable time of the program in the unrecorded area of the optical disc on which the recording / reproducing means is recording the program, and this recordable time is previously set. 3. The optical disk apparatus according to claim 2, wherein when the time is shorter than a predetermined time, it is determined that the optical disk on which the program is recorded is replaced with another optical disk stored in the optical disk storage means.   The control means has a commercial judgment function for judging whether the broadcast signal received by the receiving means is a program main part or a commercial inserted in the middle of the program main part, and this commercial judgment function 4. The optical disk apparatus according to claim 3, wherein when it is determined that the optical disk is a commercial, it is determined whether or not to replace the optical disk on which the program is recorded with another optical disk stored in the optical disk storage means.

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