JP2008034047A - Disk recording/reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording/reproducing device of a disc changer system which can automatically calculate the optimal combination of disks in a programmed recording period to enable a user to select the optimal combination. <P>SOLUTION: The user can set the programmed recording to details beforehand by a recording reservation setup means , and the programmed recording can be carried out automatically with the optimal disk and the combination of the two or more disks. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a disk changer and a disk recording / reproducing apparatus having a disk switching function, and in particular, a plurality of different types of disks such as a DVD (Digital Versatile Disk) and a CD (Compact Disc) are stored in one storage. The present invention relates to an optical disc reproducing apparatus having a function of selecting and recording and reproducing discs.

Conventionally, a wide variety of media are provided as recording media for recording data. Currently, CDs and DVDs are widely used due to the convenience of recording large amounts of data. In addition, an optical disk device that records information such as a TV program on an optical disk such as a DVD or reproduces information recorded on the optical disk has become widespread.
As an optical disc apparatus, it has a rotary tray and magazine on which a plurality of optical discs can be placed, has a changer unit capable of recording and reproducing, and is placed on this changer unit to record and record information on a designated optical disc. A disk changer type optical disk apparatus that performs reproduction is also known.
By the way, in such a disc changer type optical disc apparatus, for example, when recording a TV program or the like, first, recording is performed on the first designated optical disc, and when this disc capacity becomes full, Since the disk must be replaced with an optical disk that takes over recording, the rotary tray is rotated to set the next optical disk at the recording and reproduction position, and recording is performed on the next optical disk.
Japanese Patent Laid-Open No. 2004-228867 calculates the free space capacity of a disk drive when recording reservation is set, determines whether recording is possible from the recording data amount and the image quality mode, and if the free space is insufficient for the recording data amount, A method is disclosed in which adjustment is performed so that recording can be performed by lowering the mode.
In Patent Document 2, there is a method of comparing the remaining time designation data with the maximum recording time, displaying an error message indicating that recording is not possible if the data is large, and performing recording while increasing the data amount as much as possible if the data is small. It is disclosed.
Patent Document 3 discloses a method for comparing the time information of the recording reservation time with the free disk capacity, displaying a list of reservation information as well as indicating that the free space of the DVD is displayed in a bar display. .
JP2002-271742 JP2001-28732 Special Re-2002-28100

With the conventional technology, the recording mode can be set to be variable at the time of recording reservation, but even if recording is executed in the minimum quality mode of variable mode, the reserved image data amount will not exceed the free space of the DVD There was a problem that all the reserved programs could not be taken.
Also, in order to cope with the above case, the user must replace the disk and execute recording again, and if the user is not in front of the recording device until recording is completed, satisfactory recording will not be performed. There was a problem.
In the present invention, when recording reservation is made, it is possible for the user to make detailed settings in advance by the recording reservation setting means, and a method that can automatically perform scheduled recording with an optimal disc and a combination of a plurality of discs. provide.

A plurality of trays on which a plurality of optical discs can be placed; free space information storage means for storing free space information of each of the plurality of optical discs when each of the plurality of optical discs is placed on the tray; and setting of recording reservations Recording change setting means for performing recording, means for calculating a total recording time based on the recording reservation setting means, and a recording execution sampling rate setting means for selecting a sampling rate from a plurality of recording execution sampling rates In the disc recording / reproducing apparatus of the system,
The free capacity information storage means stores the free capacity as a table or calculation formula of free times corresponding to the respective sampling rates, and the recording execution sampling rate setting means stores the total recording time and the free time. Display one or a combination of two or more of the discs simultaneously or sequentially and allow the user to select one of them.
A plurality of trays on which a plurality of optical discs can be placed; free space information storage means for storing free space information of each of the plurality of optical discs when each of the plurality of optical discs is placed on the tray; and setting of recording reservations Recording change setting means for performing recording, means for calculating a total recording time based on the recording reservation setting means, and a recording execution sampling rate setting means for selecting a sampling rate from a plurality of recording execution sampling rates In the disc recording / reproducing apparatus of the system,
The free space information storage unit stores a calculation formula for calculating a recordable time corresponding to the free space and each sampling rate, and the recording execution sampling rate setting unit includes the total recording time and the total recording time. The free time calculation formula is compared to display one or a combination of two or more discs simultaneously or sequentially, allowing the user to select one of them.
In the disk recording / reproducing apparatus, when each of the plurality of optical disks is placed on the tray, in the case of an uninitialized disk, free space information of each optical disk is stored together with the initialization. .
In the disk recording / reproducing apparatus, the recording reservation setting means includes variable sampling rate setting means for setting whether or not the sampling rate of the recording reservation is variably set.
In the disc recording / reproducing apparatus, the recording reservation setting unit is configured to set whether or not to forcibly execute recording when a free capacity of the plurality of optical discs is insufficient with respect to the total recording time. Forced execution mode setting means is included.

According to the first aspect of the present invention, if the program to be reserved is reserved by the recording reservation setting means, the recordable time of each disk for each sampling rate is displayed, and the recording time of the program to be reserved is the closest. One free disk or a combination of one or more free disks is displayed, and the user can select the combination.
According to the invention of claim 2, if the program to be reserved is reserved by the recording reservation setting means, the recordable time of each disk for each sampling rate is displayed and the closest to the recording time of the program to be reserved One free disk or a combination of one or more free disks is calculated and displayed, and the user can select the combination.
According to the invention of claim 3, when an uninitialized disk is placed on the tray, the uninitialized disk can be initialized before storing the free space information.
According to the invention of claim 4, by setting the sampling rate to be variable, it is possible to automatically set the sampling rate so that the reservation target program can be recorded in the free space of the disk.
According to the invention of claim 5, there is a forced execution mode setting means for setting whether or not to forcibly execute recording when the free capacity of the plurality of optical discs is insufficient with respect to the total recording time. This makes it possible to set the user's desire to perform recording even when the reservation target program cannot be recorded to the end.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a configuration of an optical disc apparatus according to an embodiment of the present invention.
With reference to FIG. 1, the operation of disc playback will be described in terms of signal flow. A reproduction command is sent from the user by the remote controller 15, and a reading instruction is issued from the central processing unit 16 to the optical pickup 7. Video and audio signals are read from the DVD disk 6 by the optical pickup 7 and sent to the video codec 8 and the audio codec 9, respectively. Next, a signal is sent from the video codec 8 to the video signal processing unit 10, subjected to luminance and color processing, and sent to the analog video output unit 12. On the other hand, the audio signal is sent from the audio codec 9 to the audio signal processing unit 11 and is sent to the analog audio output unit 13 and the digital audio output unit 14 respectively.
The operation for disc recording will be described with reference to the signal flow. A channel selection command is sent from the user to the central processing unit 16 by the remote controller 15, and a tuner 18 is tuned to the channel designated by the channel selection command in response to an instruction from the central processing unit 16, and a recording command is sent from the remote control 15. Then, the video and audio signals from the tuner 17 are sent to the video signal processing unit 10 and the audio signal processing unit 11 of the signal processing unit 3, respectively, in accordance with instructions from the recording start means 16e of the central processing unit 16. The video signal and the audio signal processed by the signal processing unit 3 are sent to the video codec 8 and the audio codec 9 of the encoding / decoding unit, respectively. Here, a codec is an IC block having both encoding and decoding functions. Therefore, since encoding is necessary for recording, both the video signal and the audio signal are encoded, and the encoded video signal and audio signal are sent to the optical pickup 7 and written to the DVD disc 6.
With respect to the reserved recording, the operation from the reserved recording setting to the reserved recording execution will be described with reference to a signal flow. A command for setting reservation recording is sent from the remote controller 15 to the central processing unit, and a reservation recording setting display is displayed on a display unit of the disk recording / reproducing apparatus (not shown) or a display device connected to the disk recording / reproducing apparatus. . In the display, date, start time, end time, channel, and recording mode, which are the setting items for the reserved recording, are displayed. The central processing unit 16 receives a command from the remote controller 15 for each item, and the items are displayed in the items. On the other hand, when each data inputted is recorded in the memory 18 and the power source of the disk recording / reproducing apparatus is turned off, a reservation recording standby state is entered.
Even in the reservation recording standby state, power is supplied to the central processing unit 16, and the central processing unit 16 always searches for the reservation recording start time. At the scheduled recording start time, the central processing unit 16 turns on the power of the disc recording / reproducing device, and the tuner 17 is controlled by the central processing unit 16 so as to synchronize with the channel number read from the memory 18, and the recording start means 16e. The video and audio signals from the tuner 17 are sent to the video signal processing unit 10 and the audio signal processing unit 11 of the signal processing unit 3, respectively, according to the instruction from. The video signal and the audio signal processed by the signal processing unit 3 are sent to the video codec 8 and the audio codec 9 of the encoding / decoding unit, respectively. Here, a codec is an IC block having both encoding and decoding functions. Therefore, since encoding is necessary for recording, both the video signal and the audio signal are encoded, and the encoded video signal and audio signal are sent to the optical pickup 7 and written to the DVD disc 6. The central processing unit 16 always searches for the recording end time. When the recording end time comes, the central processing unit 16 stops the recording and turns off the power of the disk recording / reproducing apparatus.
FIG. 2 shows an input screen for making a recording reservation according to this embodiment. Today's date 31, current time 32, and the currently set recording mode 33 are displayed at the top of the screen. The recording mode means the quality of image quality, and is usually divided into six stages, and XP, SP, LP, EP, SLP, and SEP are determined in descending order of quality.
Next, a list at the center of the screen will be described. The number of reservations 34 represents how many recording reservations are input. Execution 35 indicates whether or not reserved recording is to be executed, and indicates that execution is “ON”. The date 36 represents the day on which the scheduled recording is executed, and the start 37 and the end 38 represent the start time and the end time of the recording reservation, respectively. CH39 represents a channel for executing reserved recording, and mode 40 represents a recording mode for executing recording. The variable mode 41 is a function for adjusting the recording mode to drop to enter the free space if the variable mode is set to “ON” when the free space of the disk to be reserved for recording is small. The forced execution 42 sets whether or not to execute recording even when the recording reservation does not fit in one disc. Details of the variable mode 41 and the forced execution 42 will be described later.
FIG. 3 shows a disk free space information display screen of the present embodiment. This list shows the free capacity of the disks placed on each tray 44 to 48 for each sampling rate 43 in terms of time. The recording time 50 of the reservation target program with the reservation number 49 is shown at the top of the list. In this figure, the recording time is 120 minutes, and the tray or the combination of trays having the closest free space is highlighted with respect to the free space for each of the sampling rates 43, and the user can select the high-speed display according to his / her preference. The sampling rate can be selected from among the lights. Similarly, the sampling rate where the disk combination exists is also highlighted, and the sampling rate where the disk combination does not exist is not highlighted. In the case of the present embodiment, highlighting is performed by changing the background color. Changing the background color is an example of highlighting, and any means or method for informing the user, such as thickening a character to be highlighted or making a halftone other than the portion to be highlighted, is included in the present invention. Applicable.
FIG. 4 is a block diagram showing the configuration of the disk drive unit provided in the optical disk recording / reproducing unit in the rotary tray disk changer type optical disk apparatus of the present embodiment. The disk drive unit includes a rotary tray 20 having a disk mounting unit on which, for example, five optical disks can be mounted in the circumferential direction, and an optical disk mounted on the disk mounting unit of the rotary tray 30 at a recording and reproducing position. A spindle motor 18 that rotates a certain optical disk 6 through a motor shaft 19a, and a recording surface of the optical disk 6 is irradiated with laser light through an optical lens 7a, and reflected light from the recording surface of the optical disk 6 is optical lens. An optical pickup 7 that optically writes and reads information to and from the optical disc 6 by receiving light through the optical disc 7a, and a thread for fixing the optical pickup 7 and moving the optical pickup 7 in the radial direction of the optical disc 6 21a and a stepping motor 2 for driving the sled 26 It is equipped with a door.
While the optical disk 6 is rotationally controlled by the spindle motor 18, the sled 21a is moved by the control of the stepping motor 21, and the optical pickup 7 is moved accordingly, so that the writing position or the reading position on the optical disk 6 is almost the same. It is determined. Further, fine position control is performed by the control function inside the optical pickup 7. At the time of recording and reproduction, the reflected light from the optical disk 6 is incident through the optical lens 7a, read by the optical pickup 7 and converted into an electric signal. The electric signal is decoded by the decoding unit 2, Input to the processing unit 3, luminance and color intensity processing are performed, and the result is sent to the output unit 4. The system control unit 5 performs feedback control so as to control the optical pickup so that the electric signal intensity obtained by the optical pickup 7 is optimized.
FIG. 5 is a simplified plan view of the disk changer tray in the present embodiment. In FIG. 3, on the upper side of the tray 20, there is a carousel type rotary tray 30 in which five disk mounting portions 31 to 35 set with optical disks mounted are arranged at regular intervals in the circumferential direction. Has been placed. The tray 20 moves in the front-rear direction with respect to the front surface of the apparatus main body, and the rotary tray 30 also moves in the front-rear direction accordingly.
FIG. 6 is a flowchart for explaining the recording reservation setting in this embodiment. The recording process to a plurality of optical disks will be described with reference to this flowchart and FIGS.
The user operates a tray opening / closing key (not shown) of the remote controller 15 so that five recordable optical discs can be placed on the disc placement units 31 to 35 in the rotary tray 30. The tray 20 is moved in the front direction so that two placement units 31 to 35 come out to the front of the apparatus, and the rotary tray 30 is rotated little by little to place five optical discs on the disc placement units 31 to 35. Put. Then, after the placement of the five optical discs on the disc placement units 31 to 35 is completed, the tray 20 slides into the optical disc recording / reproducing apparatus by operating the tray opening / closing key of the remote controller 15.
When the tray 20 enters the inside of the optical disc recording / reproducing apparatus, it is determined whether or not the optical disc 31 at a position where recording / reproducing can be performed at the position of the tray is formatted (step S501). Here, formatting is a process required to record and play back the disc, and it is a preparatory work for writing data to the disc in the same way as preparing to write a ruled line on a notebook. It is.
If the optical disc has been formatted, the free space information of the disc is recorded in the memory 18 (step S503). On the other hand, if the optical disk is not formatted, formatting is performed (step S502).
Next, the memory 18 of the system control unit 5 controls the optical disc recording / reproducing unit 1 to drive a tray motor (not shown), thereby rotating the rotary tray 30 and disc mounting units 32, 33, 34, and 35. Are sequentially set at the recording and reproduction positions, and the free space information of each disk is stored in the memory 18 (step S503).
Thereafter, the recording reservation setting means 16a inputs the execution item 35, reservation date 36, start time 37, end time 38, channel 39, mode 40, variable mode 41, forced execution 42, and setting items of FIG. (Step S504). Thereafter, the disc discriminating means 16b calculates the recording time based on the start time 37 and the end time 38, further calculates the free space required by the mode 40, and determines whether or not there is a disc that can fit in one disc. It discriminates from the free space information of each disk stored in 18 (step S505).
If there is a disk in step S505, the central processing unit 16 rotates the rotary tray 30 to control the disk so that it can be recorded (step S511) and waits until the recording start time.
If it is determined in step S505 that there is no disc that can fit into one sheet, the central processing unit 16 reads out from the memory 18 whether the variable mode 41 input in step S504 is set to be variable. (Step S506). The mode means the quality of image quality, and is usually divided into six stages, and XP, SP, LP, EP, SLP, and SEP are determined in descending order of quality. If the user selects one of the six stages of the mode in step S504, recording is executed in that mode. On the other hand, in the variable mode, the central processing unit 16 changes the mode in accordance with the free space of the disk (step S507).
If it is determined in step S506 that the variable mode is not set, the central processing unit 16 reads the setting of the forced execution 42 input in step S504 from the memory 18, and the forced execution mode determination unit 16c performs the forced execution. It is determined whether the execution mode is on or off (step S522). Here, the forced execution mode is a mode for setting whether or not to execute recording even if the reserved program time does not fit in the combination of one or more discs. For example, the user can record only in the first half of the program. Set when you want.
If it is determined in step S522 that the forced execution mode is not set, the process shifts to the end state.
Next, referring to FIG. 6, the recording execution after the recording reservation setting is completed will be described from the process A in FIG. The central processing unit 16 keeps searching for the recording start time 37 input in step S504 during the recording reservation standby (step S601), and when the recording start time 37 comes, the recording start means 16e starts recording (step S602). Then, the central processing unit 16 monitors whether the free space of the recording disk becomes zero (the disk is full) (step S603).
If it is determined in step S603 that the free space of the disk is zero, the free space information of each disk stored in the memory 18 is read again to search for a disk with free space, and the rotary tray 20 is rotated to rotate the disk. A disk with free space is placed at the recording position to replace the recording target disk (step S605), and recording is started by the recording start means 16e (step S606). If it is determined in step S604 that there is no replacement disk (no disk with free capacity), the process shifts to the end state.
As described above, according to the present embodiment, when making a recording reservation, the above-mentioned settings are set by the recording reservation initial setting means 16a, so that the optimum disc combination for the reserved recording time is automatically calculated. To make it easy for users to choose. Furthermore, various modes desired by the user, a recording mode for setting the image quality, and a forced execution mode for setting whether to execute recording even when the reserved program cannot be recorded to the end even when the disks are combined are provided.
In this embodiment, the rotary rotary tray type or the carousel type is described. However, the present invention is not limited to this, and any disk recording / reproducing apparatus capable of loading a plurality of disks such as a magazine type can be implemented.

1 is a block diagram showing a configuration of a disc changer type optical disc apparatus according to an embodiment of the present invention. FIG. The recording reservation setting screen which concerns on one Embodiment of this invention is shown. 3 shows a free capacity list display screen according to an embodiment of the present invention. 1 is a block diagram showing a configuration of a disc drive unit provided in an optical disc recording / reproducing unit in a rotary tray type disc changer type optical disc apparatus according to an embodiment of the present invention. FIG. It is the top view which simplified the tray structure of the rotary tray type disc changer type which concerns on one Embodiment of this invention. It is a flowchart for demonstrating the recording reservation setting to the some optical disk which concerns on one Embodiment of this invention. It is a flowchart for demonstrating recording reservation execution after the recording reservation setting which concerns on one Embodiment of this invention.

Explanation of symbols

6 DVD disc 7 optical pickup 8 video codec 9 audio codec 10 video signal processing unit 11 audio signal processing unit 12 analog video output unit 13 analog audio output unit 14 digital audio output unit 15 remote control 16 central processing unit 16a recording reservation initial setting means 16b Disk discrimination means 16c Forced execution mode discrimination means 16d Recording start means 16e Recording execution sampling rate setting means 17 Tuner 18 Memory (free capacity information storage means)
20 Tray 30 Rotary trays 31 to 35 Disc placement unit

Claims (5)

A plurality of trays on which a plurality of optical discs can be placed; free space information storage means for storing free space information of each of the plurality of optical discs when each of the plurality of optical discs is placed on the tray; and setting of recording reservations Recording change setting means for performing recording, means for calculating a total recording time based on the recording reservation setting means, and a recording execution sampling rate setting means for selecting a sampling rate from a plurality of recording execution sampling rates In the disc recording / reproducing apparatus of the system,
The free capacity information storage means stores the free capacity as a table or calculation formula of free times corresponding to the respective sampling rates, and the recording execution sampling rate setting means stores the total recording time and the free time. A disc recording / reproducing apparatus characterized in that one or a combination of two or more discs are displayed simultaneously or sequentially and the user can select one of them. A plurality of trays on which a plurality of optical discs can be placed; free space information storage means for storing free space information of each of the plurality of optical discs when each of the plurality of optical discs is placed on the tray; and setting of recording reservations Recording change setting means for performing recording, means for calculating a total recording time based on the recording reservation setting means, and a recording execution sampling rate setting means for selecting a sampling rate from a plurality of recording execution sampling rates In the disc recording / reproducing apparatus of the system,
The free space information storage unit stores a calculation formula for calculating a recordable time corresponding to the free space and each sampling rate, and the recording execution sampling rate setting unit includes the total recording time and the total recording time. Disc recording / playback characterized by comparing one or more combinations of discs simultaneously or sequentially by comparing with the calculation formula of the free time and allowing the user to select one of them apparatus. 3. The disk according to claim 1, wherein when each of the plurality of optical disks is placed on the tray, in the case of an uninitialized disk, the free space information of each optical disk is stored together with the initialization. Recording / playback device. 3. The disc recording / reproducing apparatus according to claim 1, wherein the recording reservation setting means includes variable sampling rate setting means for setting whether or not to set a sampling rate of the recording reservation variably. The recording reservation setting means includes forced execution mode setting means for setting whether or not to forcibly execute recording when the free space of the plurality of optical disks is insufficient with respect to the total recording time. 3. The disk recording / reproducing apparatus according to 1 or 2.