JP3617297B2 - Recording / playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording / reproducing apparatus such as a disk changer for storing a plurality of disk cartridges configured by storing a disk in a cartridge, and selecting one disk cartridge among them.
[0002]
[Prior art]
In the field of audio equipment, changers for data recording / reproducing devices such as mini-discs have begun to appear. For example, a device as disclosed in JP-A-7-176127 is known. This conventional apparatus adopts a structure in which a part of the stored disk cartridge is exposed to the outside of the stocker, and each disk cartridge is manually taken out of the apparatus. It is possible to replace other disk cartridges.
[0003]
[Problems to be solved by the invention]
However, in this apparatus, it is necessary to manually eject the discs, and it is not possible to eject all the discs with a single button operation or to automatically eject discs with errors. In order to solve this problem, a changer that electrically ejects the disc can be considered. However, when recording data, the power consumption of the laser, magnetic head, etc. of the optical pickup increases, and the electrical ejection during data recording has a peak power consumption. There is a problem that it becomes too large and the power supply capacity needs to be increased, resulting in an increase in cost.
[0004]
The present invention has been made to provide a recording / reproducing apparatus that suppresses an increase in power source capacity, which causes an increase in cost, even if an electric discharge mechanism is employed.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a data recording / reproducing apparatus of the present invention is a recording / reproducing apparatus that stores a plurality of recording / reproducing media in a stocker and performs recording / reproducing of a selected recording / reproducing medium among the plurality of recording / reproducing media. A transfer means for electrically discharging the recording / reproducing medium from the stocker to the outside of the apparatus, a recording / reproducing unit for performing recording / reproducing of the recording / reproducing medium, and performing an intermittent recording operation of data at the time of recording on the recording / reproducing medium, Control means for temporarily stopping the drive control of the transfer means when the power consumption during the recording operation of the recording / reproducing unit becomes large, and the control means is capable of recording / reproducing one of the plurality of recording / reproducing media. The other recording / reproducing medium is discharged outside the apparatus.
[0006]
With such a configuration, even if the recording medium is discharged electrically, the power for data recording and the power for the electric discharge mechanism can be prevented from overlapping each other. As the power for the power and the power for the electric discharge mechanism overlap, the power supply having a larger capacity is not necessary.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the recording / reproducing apparatus of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram schematically showing a part of the recording / reproducing apparatus of the present invention, FIG. 2 is a block diagram showing the configuration of the recording / reproducing apparatus, FIG. 3 is an explanatory diagram showing the concept of intermittent recording control, and FIG. FIG. 5 is an explanatory diagram showing the timing of the ejecting operation, FIG. 5 is a flowchart when the writing flag is set, and FIG. 6 is a control flowchart when the disk is ejected using the writing flag.
[0008]
In the figure, reference numeral 1 denotes a disc changer apparatus main body. In this disc changer apparatus main body 1, a state in which a disc cartridge 2 is at a discharge position 3, a stocker position 4, and a recording / reproducing position 5 is schematically shown. That is, a plurality (five in the embodiment) of the disk cartridge 2 can be stocked at the stocker position 4 and can be inserted / removed at the discharge position 3 so as to be stocked in each of the disk storage portions 4a to 4e in the stocker 41. Yes. In addition, the disk cartridge 2 selected from the stocker position 4 is recorded and reproduced at the recording / reproducing position 5, and a traverse unit 6 having a spindle, a pickup, a magnetic head and the like is arranged at the recording / reproducing position 5. Has been.
[0009]
Further, the disc changer apparatus main body 1 is provided with a transfer means 7 for the disc cartridge 2 so as to transfer to the discharge position 3, the stocker position 4 and the recording / reproducing position 5. The transfer means 7 is driven. It is configured to be performed by a motor. Further, when the transfer means 7 performs the transfer, the disc cartridge 2 to be ejected is selected and the disc cartridge 2 to be recorded / reproduced at the recording / reproducing position 5 is selected, and details thereof are omitted here. Reference numeral 8 denotes a motor drive circuit, which controls the drive of the motor for driving the transfer means 7 described above.
[0010]
Reference numeral 9 denotes a control means comprising a CPU, which controls the motor driving circuit 8 and a recording / reproducing circuit 10 described later. That is, the control means 9 detects the state of the transfer means 7 by the detection signal S1, outputs a command of the motor control signal S2 in accordance with the state, and controls the transfer means 7 by the motor drive circuit 8. Here, the transfer means 7 can control the transfer of another disk cartridge 2 from the stocker position 4 to the discharge position 3 even when one disk cartridge 2 is at the recording / reproducing position 5 and is mounted on the traverse unit 6 and being recorded / reproduced. It is configured. The control means 9 controls the recording / reproducing circuit 10 by a control signal S3 with the recording / reproducing circuit 10 during recording / reproducing control described later.
[0011]
Reference numeral 11 denotes operation button means for performing an operation input to the control means 9, reference numeral 12 denotes a display device for performing display based on a display signal output from the control means 9, and reference numeral 13 denotes a power source. Here, for the sake of convenience, the output of the power supply 13 is shown only for the motor drive circuit 8 and the recording / reproducing circuit 10, and the operating current viewed from the power supply 13 for the motor drive circuit 8 is Ia, and the power supply for the recording / reproducing circuit 10 is shown. The operating current viewed from 13 is Ib.
[0012]
The recording / reproducing circuit 10 performs recording / reproducing with respect to the disc stored in the disc cartridge 2 under the control of the control means 9, and the configuration of the recording / reproducing system is shown in FIG.
In FIG. 2, reference numeral 14 denotes a recording / reproducing unit. The recording / reproducing unit 14 includes the traverse unit 6 and the recording / reproducing circuit 10. Reference numeral 2 a denotes a disc stored in the disc cartridge 2. The traverse unit 6 includes a spindle 6a, a pickup 6b, a magnetic head 6c, and the like, and the recording / reproducing circuit 10 includes a signal processing unit 10a, a memory (ring buffer) 10b, and a recording / reproducing control unit 10c. The signal processing means 10a is for recording the record information Si input / output from the input / output terminal 15 on the disc 2a or reproducing the information recorded on the disc 2a via the traverse unit 6. The recording / reproducing unit 14 performs recording on the disk 2a of the disk cartridge 2 at the recording / reproducing position 5 by intermittent recording of the input recording information Si. Here, the intermittent recording control will be described. A method is used in which information to be recorded is stored in the memory 10b, and when information is accumulated in the memory 10b to some extent, recording is performed on the disk 2a.
[0013]
Next, based on FIG. 3, the change of the data amount Dm of the memory 10b, the change of the recording current Ib, and the timing of the writing flag Fm to the disk 2a during the intermittent recording control will be described.
First, in FIG. 3A, until the data amount Dm of the recorded information is stored in the Up level amount of the memory 10b, it is stored only in the memory 10b without being recorded on the disk 2a, and when this is accumulated up to the Up level. Is detected, and writing to the disk 2a is started. Writing to the disk 2a is performed in a short time until the data amount Dm of the memory 10b decreases to the Lo level, and when the data level drops below the Lo level, the writing operation to the disk 2a is performed. Pause. After this, the operation of writing to the disk 2a is repeated after waiting for the data amount Dm of the recording information to be accumulated in the memory 10b until the amount of the Up level. At this time, the recording information is always written to the memory 10b during T0, but writing to the disk 2a is performed in a section T1 in which writing is stopped and a section T2 in which writing is being performed.
[0014]
During the above-described intermittent recording control, the current Ib supplied from the power source 13 to the recording / reproducing circuit 10 changes as shown in FIG. That is, the current consumption is large in the section T2 in which writing to the disk 2a is being performed, and the current consumption is small in the section T1 in which writing is being stopped. In the present invention, the transfer means 7 is moved during the section T1 during which writing is stopped (that is, when the consumption current is small), and the transfer means 7 is stopped during the section T2 during which writing is being performed (ie when the consumption current is large). By configuring, the peak of the total consumption current of the recording current Ib and the motor driving current Ia is suppressed.
[0015]
Next, a writing flag Fm for controlling the transfer means 7 in accordance with the intermittent recording will be described with reference to FIG. After the above-described recording starts, the recording information is accumulated in the memory 10b. However, since the information is not recorded on the disk 2a until the information amount exceeds the Up level, the writing flag Fm is set to L, and the information amount reaches the Up level. If it exceeds, the writing flag Fm is set to H, and after writing to the writing position of the disk 2a, writing of information to the disk 2a is started as a section T2 during writing. When writing information to the disk 2a, if the speed of writing information to the disk 2a is faster than the speed of storing information in the memory 10b, the information stored in the memory 10b decreases. When the amount of data in the memory 10b becomes less than the Lo level, the writing of information to the disk 2a is stopped and the writing flag Fm is set to L. Thereafter, the control of H and L of this writing flag Fm is repeated, and a writing flag corresponding to intermittent recording is generated. In order to increase the speed of writing to the disk 2a, there are methods such as compressing signals, increasing the transfer rate to the disk, and increasing the rotational speed of the disk, but these are omitted here.
[0016]
Next, control of the transfer means 7 using the writing flag Fm will be described below.
When the disk 2a stored in the disk cartridge 2 is being recorded by the recording / reproducing unit 14, if the disk cartridge 2 other than the recording medium, that is, the disk cartridge 2 at the stocker position 4 is to be ejected, the recording / reproducing circuit 10 during recording Since the power consumed and the power consumed by the transfer means 7 overlap, the power consumption increases. In order to prevent this, the control means 9 controls the transfer means 7 as follows. That is, the control means 9 controls the recording / reproducing circuit 10 by the control signal S3 with the recording / reproducing circuit 10 at the time of recording / reproducing control. At this time, the recording / reproducing unit 14 reads the writing flag Fm. It is possible to know whether the recording flag Fm is H or the intermittent recording pause is L. Therefore, when moving the transfer means 7, the control means 9 controls the motor drive circuit 8 to stop the motor when intermittent recording is in progress (writing flag Fm is H), and also during intermittent recording stop (writing). When the middle flag Fm is L), the motor drive circuit 8 is controlled to move the motor, and the transfer means 7 is controlled.
[0017]
The specific contents of such control will be described with reference to FIGS.
First, FIGS. 3A and 3B are the same as FIGS. 3C and 3B described above, and the change in the writing flag Fm of the recording / reproducing unit 14 and the power supply 13 are connected to the recording / reproducing circuit 10. This is a change in the current Ib to be supplied, and the peak current at this time is i1. Next, the current consumption waveform when the motor drive circuit 8 is controlled during the ejection operation when not recording to the disk 2a, that is, the ejection operation is the current Ia1 shown in FIG. i2. Here, the current waveform when the ejection operation is simply performed during recording on the disk 2a is the sum of the current Ib during recording and the current Ia1 during ejection, and the current waveform shown in FIG. (Ib + Ia1). The peak current at this time is i3.
[0018]
In the present invention, the ejection operation is stopped when the writing flag Fm shown in FIG. 5A is H during recording on the disk 2a, and the operation is performed when the writing flag Fm is L. The current waveform consumed by the eject motor is a current Ia2 shown in FIG. Here, the operation start timing of the motor control circuit 8 is earlier than the timing when the writing flag Fm changes from L to H than when the information is started to be written to the disk 2a. If it is performed within the access time of the disk 2a, the current Ib during recording and the motor current Ia2 do not overlap. Accordingly, the current waveform summed with the recording current Ib is a current Id (Ib + Ia2) shown in FIG. The peak current at this time is i4, which is smaller than the peak current i3 in FIG. Here, since the motor drive time for ejection does not change as the operation time of the eject motor, the total time of the drive times Tn1 to Tn4 in FIG. (E) is the same as the motor drive time Tm in FIG. (C). It is.
[0019]
By controlling as described above, the power consumed by the recording / reproducing circuit 10 during recording and the power consumed by the transfer means 7 do not overlap, and the peak of power consumption can be suppressed. That is, by performing the above control, it is possible to prevent the power for data recording and the power of the transfer means 7 from overlapping, and therefore when the power for data recording and the power of the transfer means 7 overlap. There is no need for such a large capacity power supply, and the cost can be reduced.
[0020]
Next, a method for generating the writing flag described above will be described with reference to the flowchart of FIG. The flowchart shown in FIG. 5 explains how to set the writing flag during intermittent recording.
First, recorded information, that is, data is accumulated in the memory 10b without interruption, and a determination process is performed to determine whether or not the amount of data accumulated in step 60 exceeds the Up level. If it exceeds the Up level, the process proceeds to Step 61, and if not, the process proceeds to Step 67. In step 61, the writing flag Fm is set to H, and the routine proceeds to step 62. In step 62, it is determined whether or not the access to the writing position of the disk 2a has been completed. If the access has not been completed, the process proceeds to step 63. If completed, the process proceeds to step 64. In step 63, the write position on the disk 2a is accessed, and then the process proceeds to step 62. In step 64, data is recorded from the memory 10b to the disk 2a, and the process proceeds to step 65. In step 65, it is determined whether or not the amount of data in the memory 10b has become the Lo level or less. If not, the process proceeds to step 64. If not, the process proceeds to step 66. In step 66, recording on the disc 2a is stopped, and the routine proceeds to step 67. In step 67, the writing flag Fm is set to L, and the routine proceeds to step 60.
[0021]
Next, the mechanism control method described above will be described with reference to the flowchart of FIG. The flowchart shown in FIG. 6 will be described with a focus on the operation portion for discharging the disc cartridge 2 at the stocker position 4 in particular.
First, regarding the operation when the disk cartridge 2 at the stocker position 4 is ejected, a step 68 is performed to determine whether or not the button for ejecting the disk cartridge 2 at the stocker position 4 has been pressed. If there is no operation, the process proceeds to step 78, and if there is an operation, the process proceeds to step 69. In step 69, it is determined whether or not the disk cartridge 2 in the disk storage position 4a to 4e corresponding to the operated button is in the recording / reproducing position 5. If there is, the process proceeds to step 70. If not, the process proceeds to step 72. To do. In step 70, it is determined whether or not recording / reproducing on the disk cartridge 2 at the recording / reproducing position 5 is stopped. If it is stopped, the process proceeds to step 72. If it is in operation, the process proceeds to step 71. In step 71, recording / reproduction stop processing is performed, and the process returns to step 70.
[0022]
In step 72, it is determined whether or not the disk 2a of the disk cartridge 2 at the recording / reproducing position 5 is being recorded. If not, the process proceeds to step 75. If it is being recorded, the process proceeds to step 73. In step 73, the writing flag Fm sent from the recording / reproducing unit 14 is determined. If writing to the disk 2a is in progress, the process proceeds to step 74. If not writing to the disk 2a, the process proceeds to step 75. . In step 74, since writing to the disk 2a is in progress, the motor for ejecting is stopped and the process returns to step 72.
[0023]
At step 75, since writing to the disk 2a is not in progress, the motor for ejecting is driven and the routine proceeds to step 76. In step 76, it is determined whether or not the disk cartridge 2 has moved from the stocker position 4 to the discharge position 3. If the disk cartridge 2 has reached the discharge position 3, the process proceeds to step 77. If not, the process returns to step 72. . In step 77, since the disk cartridge 2 has been moved to the ejection position 3, the motor for ejecting is stopped, and the process returns to the first step 68.
[0024]
In step 78, it is determined whether a button other than that determined in step 68 has been pressed. If it has been pressed, the process proceeds to step 79. If the button has not been pressed, processing corresponding to that button is performed. .
[0025]
【The invention's effect】
As described above, the recording / reproducing apparatus of the present invention is a recording / reproducing apparatus that stores a plurality of recording / reproducing media in a stocker and performs recording / reproducing of a selected recording / reproducing medium among the plurality of recording / reproducing media. Transfer means for electrically discharging the reproduction medium from the stocker to the outside of the apparatus, a recording / reproduction unit for performing recording / reproduction of the recording / reproduction medium and performing intermittent recording of data at the time of recording on the recording / reproduction medium, and the recording / reproduction Control means for temporarily stopping the drive control of the transfer means when the power consumption during the recording operation of the recording unit becomes large, the control means during one of the plurality of recording / reproducing media being reproduced or recorded Since other recording / reproducing media are discharged to the outside of the apparatus, the power for data recording and the power for the electric discharge mechanism overlap even if the recording medium is discharged electrically. Because it can be odd, and the power for data recording, the power supply of large capacity as when the power is overlap for electric discharge mechanism need not, will be able to cost down.
[Brief description of the drawings]
FIG. 1 is a block diagram schematically showing a part of an embodiment of a recording / reproducing apparatus of the present invention. FIG. 2 is a block diagram showing the configuration of the data recording / reproducing apparatus. FIG. 4 is an explanatory diagram showing the timing of the ejection operation of the disk cartridge. FIG. 5 is a flowchart when a writing flag is set. FIG. 6 is a control flowchart when a disk is ejected using the writing flag. ]
2 Disc cartridge 2a Disc 3 Ejection position 4 Stocker position 41 Stocker 5 Recording / reproducing position 6 Traverse unit 7 Transfer means 8 Motor drive circuit 9 Control means (CPU)
DESCRIPTION OF SYMBOLS 10 Recording / reproducing circuit 10b Memory 11 Operation button means 13 Power supply 14 Recording / reproducing part Ia Motor current Ib Recording / reproducing part current

Claims (5)

A recording / reproducing apparatus that stores a plurality of recording / reproducing media in a stocker and performs recording / reproducing of a selected recording / reproducing medium among the plurality of recording / reproducing media,
A transfer means for electrically discharging the recording / reproducing medium from the stocker to the outside of the apparatus;
A recording / reproducing unit that performs recording / reproducing of the recording / reproducing medium and performs an intermittent recording operation of data when recording on the recording / reproducing medium;
Control means for temporarily stopping the drive control of the transfer means when the power consumption during the recording operation of the recording / reproducing unit becomes large,
The disc recording / reproducing apparatus is characterized in that the control means is configured such that one recording / reproducing medium out of the plurality of recording / reproducing media discharges the other recording / reproducing medium out of the apparatus during reproduction or recording. 2. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing medium is a disk accommodated in a cartridge. The control means controls the transfer means so that the designated disk cartridge is electrically ejected out of the apparatus, and when other disk cartridges are recording at the time of ejection, the power consumption during recording is not large. The discharge control operation is performed by using the recording medium, and the control of the transfer means is temporarily stopped when the recording operation is being performed on the disc in which the power consumption increases during the intermittent recording operation. The recording / reproducing apparatus according to claim 2. When the ejection operation is performed, the control means stops the drive control command of the transfer means when the recording / reproducing unit is performing the recording operation and the writing to disk flag is present, and the recording / reproducing unit performs the recording operation 3. A recording / reproducing apparatus according to claim 2, wherein the recording / reproducing apparatus is configured to output a drive control command for the transfer means when it is not in the middle or when the writing flag is not present even during the recording operation. The in-write flag to the disk is configured to be set between before the start of writing to the disk after the recording to the memory reaches a predetermined value and after the end of writing to the disk. The recording / reproducing apparatus according to claim 4.

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