JPH0822665A - Disk recording and reproducing device - Google Patents

Abstract

PURPOSE:To prevent the scattered recording of the contents of timer recording into plural disks by performing the timer recording in only the corresponding specified disk by means of the same timer program. CONSTITUTION:A disk for MD housed in a disk stocker 19 for MD is moved to a disk recording/reproducing position (a position C) by rotating a second pull-in roller 22 if necessary at the time of recording/reproducing and loaded in a MD recording/reproducing unit 29. When the other housed disk is recorded and reproduced, an MD control circuit 45 or a disk stocker rotating motor for MD 27 is controlled, a desired disk for MD is moved just before the second pull-in roller 22 (a position B). The disk is moved to the disk recording/ reproducing position (the position C) by the rotation of the second pull-in roller 22 and loaded on the MD recording/reproducing unit 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recording / reproducing apparatus for recording / reproducing an audio signal on / from a disc-shaped recording medium such as a magneto-optical disc.

[0002]

2. Description of the Related Art As an apparatus as described above, there is an MD (mini disk) system. The MD system records an audio signal on a rewritable magneto-optical disk by a digital method, and the digitized audio signal is an ATRAC (Adaptive TR).
Data is compressed by a high-efficiency encoding process called "amorphous acoustic coding", and magneto-optically recorded on the magneto-optical disk.

[0003]

By the way, in a CD player, a so-called CD changer which allows a plurality of discs to be mounted and selectively reproduces the plurality of mounted discs has been attracting attention. Various devices have been developed and sold in the CD changer, from those having a capacity of about 3 disks to those capable of accommodating up to 100 disks. In recent years, the above-mentioned MD system has been attracting attention as a recordable disc device. Using this MD system, a plurality of MD discs can be mounted and selectively recorded and reproduced in the same manner as a CD changer. Development and examination of MD changer is in progress.

Therefore, the present invention is intended to be applied to the above-described MD changer to add a useful function, and particularly when timer recording is performed, the same timer program (recording day and recording start) is used. The recorded contents with the same end time are recorded on the same disc every time.

For example, there are many programs which are regularly broadcasted at the same time period such as weekly (or monthly) such as radio broadcast music programs, foreign language courses, and serial novels. It is conceivable to record these continuously on the disc mounted on the MD changer by timer recording, but the device side searches for a disc with an empty capacity based on the timer program set by the user. The random recording would result in a series of programs being recorded on multiple discs, and the user would later have to search across multiple discs for where to find the continuation of the program. It is very inconvenient.
And, as a matter of course, it takes a great deal of effort to collect (copy and re-record) continuous programs recorded on a plurality of discs on one disc.

[0006]

In order to solve the above-mentioned problems, the present invention has a disc storage portion for storing a plurality of discs and a timer program setting means for setting a plurality of timer programs. In a disc recording / reproducing apparatus for performing timer recording on a disc stored in the disc storage portion according to the setting of the timer program, used for timer recording corresponding to each of the plurality of timer programs by the timer program setting means. It is intended to provide a disc recording / reproducing apparatus equipped with recording control means for making each disc correspond to each other and performing timer recording by the same timer program only for the disc corresponding to the above.

[0007]

With the above-mentioned configuration, the disk used for timer recording by the timer program set by the timer program setting means is specified, and timer recording by the same timer program is performed on the same disk. Be seen.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

First, FIG. 1 shows the structure of a disk storage mechanism portion of a disk recording / reproducing apparatus of the present invention. As shown in the figure, the device is a rotary donut-shaped MD disc stocker 19 capable of storing 16 MD discs.
An MD recording / reproducing unit 29 and a tuner section 49 for recording / reproducing an MD disc arranged in the central portion of the MD disc stocker 19. Although the tuner unit is built in this embodiment, the tuner device may be formed in a separate housing.

Reference numeral 20 denotes an MD disc insertion slot for inserting an MD disc, and 21 denotes a first pull-in for pulling the MD disc inserted from the MD disc insertion slot 20 into the MD disc stocker 19. Rollers 22 are used for the MD recording / reproducing unit 2 to store the MD discs stored in the MD disc stocker 19.
A second pull-in roller that pulls into the inside of 9, a MD disc insertion sensor 23 that detects that an MD disc has been inserted into the disc insertion opening 20, and a first pull-in roller 24 that drives the first pull-in roller 21. A roller drive motor, 25 is a second pull-in roller drive motor that drives the second pull-in roller 22, 26 is an MD disc stocker rotating roller that rotates the MD disc stocker 19, and 27 is the MD disc stocker rotating roller 26. A MD disk stocker rotary roller drive motor for driving the disk drive, and 11 is a disk type hole detection switch.

Further, in the MD recording / reproducing unit 29 shown in the same figure, 37 is a spindle motor for rotating an MD disk, 38 is an optical pickup, 39 is a feed motor for driving the optical pickup 38, and 45 is the whole apparatus. This is an MD control circuit that controls the control.

FIG. 2 is a circuit block diagram showing the structure of the recording / reproducing system of the device of the present invention shown in FIG. In the figure, 36 is an analog signal input terminal to which an analog information signal such as a voice signal is input, 35 is an A / D conversion circuit for converting the information signal input from the analog signal input terminal 36 into a digital signal, and 34 is The A / D
ATR for compressing the digital information signal output from the conversion circuit 35 and converting it into a highly efficient encoded digital signal
An AC processing circuit 33 is a digital signal processing circuit for interleaving the digital signal output from the ATRAC processing circuit 34, adding an error correction code, and converting it to a digital signal with a subcode signal added, and 32 is a head drive circuit. The output signal from the digital signal processing circuit 33 is converted by the recording magnetic head 31 into a signal for recording on the magneto-optical disk 30.

Further, 38 is an optical pickup for reading pit data from the magneto-optical disk 30 and converting it into a digital signal, 40 is a digital signal processing circuit for performing processing such as error correction on the signal read by the optical pickup 38, 41 Is an ATRA that expands the signal processed by the digital signal processing circuit 40 and restores the original digital signal.
C processing circuit, 42 is a D / A conversion circuit for converting a digital signal output from the ATRAC processing circuit into an analog signal, and 43 is an analog signal output terminal for outputting an analog signal output from the D / A conversion circuit 42. . In the case of a pre-recorded disc for reproduction only, the process of signal processing during reproduction is the same as above.

Further, 39 is a feed motor for reciprocally driving the optical pickup 38 between the inner circumference and the outer circumference of the magneto-optical disc 30, and a tracking error signal output from the optical pickup 38 causes a servo control circuit 44 to drive the same. Controlled. 37 is a spindle motor for rotating the magneto-optical disk 30.

Reference numeral 45 denotes an MD control circuit for controlling the operation of the entire apparatus as described above. The mechanism shifts to each mode of recording / reproducing / fast-forwarding / fast-returning, the timer program setting means 14 and various operation keys (not shown). ), The processing based on the input signal from the above) and the processing of the subcode data, and the digital signal processing circuit 33 and the digital signal processing circuit 4
0, the servo control circuit 44, the tuner section 49, and the like. The MD control circuit 45 may be composed of a microcomputer.

Further, 10 is a memory for storing disc information and the like, 9 is a display device for displaying the information stored in the memory, 12 is a clock circuit for detecting the arrival of the timer time, and the MD control circuit 45 is provided. Are provided for timer recording based on the contents of a timer program described later. 13 is a backup power supply (for example, a lithium battery) for holding the contents of the memory, 14
Is a timer program setting means for setting a timer program. Incidentally, the timer program setting means 14 can be the same as the timer function used in the conventional audio equipment, video equipment, etc., and therefore its details are omitted here.

FIG. 3 is a view showing a cross section of the magneto-optical disk 30. In FIG. 3, 50 is a lead-in area where disk information can be reproduced, and 51 is a UTO.
Area where recording information can be recorded and reproduced in area C,
Reference numeral 52 is a program area in which music information can be recorded and reproduced, and 53 is a lead-out area.

There are two types of MD discs used in the MD system: a recordable disc made of a recordable / reproducible magneto-optical disc and a prerecorded disc made of a read-only optical disc.

FIG. 5 shows a cartridge of the recordable disc. The cartridge case 60 has a shutter 64, which is configured to slide in the direction of arrow D to expose the magneto-optical disk 30 inside the cartridge case 60 through a window (not shown) therebelow. There is. Further, the cartridge case 60 is provided with a disc type hole 63 and an erroneous erasure prevention hole 62, which are used to detect whether the disc is a pre-recorded disc dedicated to reproduction or a recordable disc capable of recording and reproducing, and a recorder. Recordable / unrecordable is detected on the Blu-ray disc. That is, 1) When the disc type hole 63 is released: a recordable disc 2) When the disc type hole 63 is not provided: It is a pre-recorded disc, and the slide member 65 is slid in the arrow E direction in the recordable disc, 1) When the erroneous erasure prevention hole 62 is closed: recording is possible 2) When the erroneous erasure prevention hole 62 is open: recording is not possible

Next, the basic operation of the disc recording / reproducing apparatus of the present invention will be described in detail.

In FIG. 1, when the user tries to insert the MD disc through the MD disc insertion opening 20 (position A), the MD disc insertion sensor 23 detects the MD disc, and the MD control circuit is accordingly detected. Reference numeral 45 activates the first pull-in roller drive motor 24 to rotate the first pull-in roller 21 and move the MD disc into the MD disc stocker 19. The MD disc that has been moved into the MD disc stocker 19 is stored in the MD disc stocker 19 (position B).

The MD disk stored in the MD disk stocker 19 is recorded / reproduced by the rotation of the second pull-in roller 22 when necessary during recording / reproduction.
It is moved to the reproduction position (position C) and attached to the MD recording / reproducing unit 29. Then, when recording / reproducing another storage disk, the MD control circuit 45 controls the MD disk stocker rotation motor 27 to rotate the MD disk stocker 15 via the MD disk stocker rotating roller 26, and then, Then, the MD disc is moved to a position just before the second pull-in roller 22 (position B). Then, similarly to the above, the second drawing roller 22 is rotated to move to the disc recording / reproducing position (position C), and M
It is mounted on the D recording / reproducing unit 29.

Next, timer recording, which is a feature of the present invention, will be described.

First, it is assumed that the user uses the timer program setting means 14 to set the timer program as shown in Table 1 below.

[0025]

[Table 1]

The timer programs shown in Table 1 are stored in the memory 10, and the registered timer programs are assigned setting numbers.

Here, if it is assumed that 12:00 on Sunday comes, the MD control circuit 45 judges from the data from the clock circuit 12 that the timer program of the setting number [3] corresponds. The MD control circuit 45 is housed in 5
The disk with the storage number [MD01] is selected from the number of disks.
At this stage, since no disc has been used for recording yet, the disc having the smallest storage number is selected.

Next, the analog audio signal output of the tuner section 49 is guided to the analog signal input terminal 36 as shown in FIG. 2 and recorded on the disc of the storage number [MD01] according to the timer program (setting number [3]). After that, the MD control circuit 45 updates the contents of the memory 10 as shown in Table 2 below.

[0029]

[Table 2]

In the future, the disc on which the program of the timer program with the setting number [3] is recorded will be the disc storage number [M
D01] disc.

Thereafter, when the time set in each timer program comes, recording is performed on each storage disk, and as a result, each disk is associated with the five timer programs as shown in Table 3 below.

[0032]

[Table 3]

After another week has passed, again on Sunday 1
When 2 o'clock arrives, the MD control circuit 45 refers to the contents of the memory 10 and determines that the disc to be used for recording is the disc with the disc storage number [MD01]. Then, the program content of the second week is recorded in the empty area of the disc.

When recording is sequentially performed on each disc in the same manner, the recorded contents on each disc are, for example, as shown in FIG.
become that way. In this example, the disc storage number [MD0
1] disc shows program [English conversation class], disc storage number [MD02] disc shows program [hit box JAPAN], disc storage number [MD03] disc shows program [Go game], disc storage number [MD0
The program [Today's dishes] is recorded on the disc of [4], and the program [Classic Evening] is recorded on the disc of the disc storage number [MD05]. Therefore, each program by the timer program is recorded on a plurality of discs. Never.

[0035]

As described above in detail, according to the present invention, there is provided a disc storage portion for storing a plurality of discs and a timer program setting means for setting a plurality of timer programs. In a disc recording / reproducing apparatus for performing timer recording on a disc accommodated in the disc accommodating portion in accordance with the setting, a disc used for timer recording corresponding to each of a plurality of timer programs by the timer program setting means. Since the recording control means for performing timer recording by the same timer program only on the corresponding discs is provided, the timer recording by the same timer program is performed only on a specific disc corresponding to the timer program. Therefore, the contents of the timer recording are scattered over multiple disks. It will not be recorded me.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a mechanism configuration of a disc recording / reproducing apparatus of the present invention.

FIG. 2 is a circuit block diagram showing a configuration of an audio signal processing portion of the disc recording / reproducing apparatus of the present invention.

FIG. 3 is a side sectional view of a main part showing the structure of a magneto-optical disk.

FIG. 4 is a diagram showing a recording state of a disc.

FIG. 5 is a view showing a cartridge of a recordable disc.

[Explanation of symbols]

9 display device 10 memory 11 disk type hole detection switch 12 clock circuit 13 backup power supply 14 timer program setting means 19 MD disk stocker 20 MD disk insertion opening 21 first drawing roller 22 second drawing roller 23 MD disk insertion sensor 24 1st pull-in roller drive motor 25 2nd pull-in roller drive motor 26 MD disc stocker rotary roller 27 MD disc stocker rotary roller drive motor 29 MD recording / reproducing unit 30 magneto-optical disc 31 recording magnetic head 32 head drive circuit 33 digital signal processing Circuit 34 ATRAC processing circuit 35 A / D conversion circuit 36 Analog signal input terminal 37 Spindle motor 38 Optical pickup 39 Feed motor 40 Di Digital signal processing circuit 41 ATRAC processing circuit 42 D / A conversion circuit 43 Analog signal output terminal 44 Servo control circuit 45 MD control circuit 49 Tuner section 50 Lead-in area 51 UTOC area 52 Program area 53 Lead-out area 60 Disc cartridge 62 Erase by mistake Prevention hole 63 Disc type hole 64 Shutter 65 Sliding member

Claims (1)

[Claims] 1. A disc storage portion for storing a plurality of discs, and a timer program setting means for setting a plurality of timer programs, wherein the disc storage portion is stored according to the setting of the timer program. In a disc recording / reproducing apparatus for performing timer recording on a disc, a disc used for timer recording is made to correspond to each of a plurality of timer programs by the timer program setting means, and timer recording by the same timer program is performed. A disc recording / reproducing apparatus comprising a recording control means for performing only on the disc to which it corresponds.