JP3515317B2 - Information reproduction-recording device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing / recording apparatus for recording an information signal reproduced from a compact disc on a recording medium such as a mini disc.

[0002]

2. Description of the Related Art Compact discs for music (Comp
act Disc Digital Audio, hereinafter C
D) was standardized by Sony Corporation and Philips Corporation in September 1981, and this project is called Red Book. This disc handles a digitized music signal and can record up to 74 minutes of audio information on a 12 cm disc.

On the other hand, a mini disk (hereinafter referred to as MD)
Is a new recording medium using a magneto-optical disk announced by Sony Corporation in 1991, and its standard is defined in Rainbow Book. There are roughly two types of MDs, a disc for playback only and a disc for recording / playback. The reproduction-only MD has the same physical format of the signal as the above-mentioned CD, and the ATRAC (Adap
live Transform Acoustic C
The audio signal compression technique called "coding" is used. A maximum of 74 minutes of digital audio signal, which is the same as a CD, can be recorded on a disc having a diameter of 64 mm. Quantization number and sampling rate are the same as CD, 16 bits, 4
4.1 KHz is adopted. A recording MD is a data recording MO (Magneto Optical).
The same magneto-optical disk as in l) is used.

[0004]

Conventionally, in a device for recording a CD audio signal in an MD, a TOC (Ta
By converting the time information recorded in the ble Of Contents area to the address information of the MD to be recorded, it is determined how much a CD track can be recorded on the MD to be recorded.

For this reason, when the CD player section continuously reproduces the CD track as usual and continuously records it on the MD recorder section MD, the CD reproduction time and M
The recording time calculated from the address of D agrees.

However, when the reproduction order of the tracks of the CD is rearranged and reproduced (so-called program reproduction),
Since the track search and the pickup movement time are added between tracks during CD reproduction, MD recording is temporarily stopped during that time. However, MD recording is performed in address cluster units. As shown in FIG. 3, a trash area where no sound is recorded is formed, and therefore, for the total playing time of the selected track of the CD,
When the address of the recording area used in the MD is converted into time, the address is increased by the trash area.

To explain this figure in more detail,
3 shows a case in which three songs (tracks) are selected, the program is reproduced and recorded in the MD. In this example, C
When the track 1, track 2, and track 8 of D are program-reproduced and these are sequentially recorded in the MD, track 1
And the track 2 are continuous tracks, so they are continuously reproduced, and in the MD, the head portion 0032H of the program area is reproduced.
Recording is started from the cluster 00H sector. As for the track 8, since the pickup is moved in the CD player section and the reproduction is restarted, the recording is temporarily stopped in the MD recorder section while the pickup in the CD player section is moving. That is, recording is restarted from the 0E5H cluster / 00H sector. For this reason, a trash area as shown in the figure is generated.

[0008] As the trash area is generated as described above, all the selected tracks of the CD are MD.
It is possible that something could not be recorded on. The present invention eliminates such inconvenience.

[0009]

In order to solve the present invention, in the present invention, a reproducing apparatus for reproducing a recorded recording medium in which a plurality of information signals are recorded as a plurality of tracks, and information reproduced by the reproducing apparatus. In an information reproducing-recording device having a recording device for recording a signal on a recordable recording medium for each predetermined recording unit, a reproducing order designating unit for designating a reproducing sequence of tracks recorded on the recorded recording medium, and The continuity of the tracks designated by the reproduction order designating means on the recorded recording medium is confirmed, and if the tracks are not continuous, the last of the information signals of the tracks on the front side of the part where the tracks are not continuous is recorded. Regarding the recording unit, a recording time integrating means for calculating the recording time as an information signal is recorded in the entire area of the recording unit, Prior to the output of a report signal, an information reproducing-recording device is provided, characterized in that the recording time accumulated by the recording time accumulating means is compared with the recordable time of the recordable recording medium. is there.

Further, according to the present invention, a reproducing apparatus for reproducing a recorded recording medium on which a plurality of information signals are recorded as a plurality of tracks, and an information signal reproduced from the reproducing apparatus are recorded on a recordable recording medium for every predetermined recording unit. In an information reproducing-recording device having a recording device for recording to a recording medium, a reproducing order designating unit for designating a reproducing sequence of tracks recorded on the recorded recording medium, and the recording of the track designated by the reproducing sequence designating unit. After confirming the continuity on the recording medium, if the tracks are not continuous, the information is recorded in the entire area of the recording unit for the last recording unit that records the information signal of the track before the part where the tracks are not continuous. A recording time integrating means for calculating a recording time as a signal is recorded,
Prior to the output of the information signal from the reproducing device to the recording device, the recording time accumulated by the recording time accumulating means is compared with the recordable time of the recordable recording medium to record all the tracks. An information reproducing-recording device is provided which is characterized by selecting tracks so that the number of recorded tracks is maximized when recording cannot be performed on a recording medium.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a circuit block diagram showing the structure of an information reproducing / recording apparatus to which the present invention is applied. As shown in the figure, the device is an M disc composed of a CD block composed of a CD player and an MD recorder (reproduction is also possible).
And D block.

Next, the structure of each block will be described in detail. First, in the MD block, 1 is an analog signal input terminal to which an analog audio signal is input, 2 is an A / D conversion circuit for converting the analog audio signal input from the analog signal input terminal 1 into a digital signal, 3 Is an ATRAC encoding processing circuit that compresses the digital signal output from the A / D conversion circuit and converts it into a high-efficiency encoded digital signal. Reference numeral 4 interleaves the signal output from the ATRAC encoding processing circuit 3 to perform error correction And a digital signal processing circuit 5 for converting into a digital signal with a subcode signal added.
An amplifier, which converts the signal output from the digital signal processing circuit 4 into a signal for recording on the MD recording disk 9 by the recording magnetic head 7.

Reference numeral 6 is a shockproof memory circuit for temporarily storing a compressed digital signal, and 8 is an MD laser pickup for heating the surface of the MD recording disk 9 to the Curie temperature at the time of recording and reading a pit signal at the time of reproduction. is there. Reference numeral 10 is a reproduction RF for amplifying the signal read from the MD laser pickup 8 during reproduction.
An ADIP demodulation circuit including an amplifier, 11 is a digital signal processing circuit for performing processing such as error correction on a signal output from the ADIP demodulation circuit 10, and 12 is an extension of the signal processed by the digital signal processing circuit 11. , ATRAC decoding processing circuit for returning to original digital signal, 13
D / which converts the digital signal processed by the ATRAC decoding processing circuit 12 into the original analog audio signal
An A conversion circuit, 14 is an analog signal output terminal for outputting the analog signal output from the D / A conversion circuit to the outside.

Further, 15 is the MD recording disk 9
A spindle motor for rotating the MD, a sled motor 16 for driving the MD laser pickup 8 and the recording magnetic head 7 to the inner and outer circumferences of the MD recording disk 9, and 17 for the spindle motor 15 and the sled motor 16. It is a motor control circuit for controlling.

18 is an M for controlling the MD block.
In the D control circuit, the MD control circuit 18 controls the motor control circuit 17 for controlling the spindle motor 15 and the sled motor 16 and also a signal input to a mechanical switch (switch for detecting the state of the mechanism) input terminal 19. Based on the above, control / processing of mechanisms and the like and processing of subcode data are performed, and the above-mentioned ATRAC encoding processing circuit 3, digital signal processing circuit 4, shock proof memory circuit 6, digital signal processing circuit 1 are performed.
1. Control the ATRAC decoding processing circuit 12 and the like.

Next, the CD block will be described in detail. In FIG. 1, 32 is a CD laser pickup for reading pit signals from the CD disc 31, 36 is a reproduction RF amplifier for amplifying the signal read from the CD laser pickup 32, and 37 is an output from the reproduction RF amplifier 36. A digital signal processing circuit for performing processing such as error correction on the signal, 38 is a D / A conversion circuit for converting the digital signal processed by the digital signal processing circuit 37 into an original analog signal, and 39 is the D / A. It is an analog signal output terminal for outputting the analog signal output from the conversion circuit 38 to the outside.

Further, 34 is a spindle motor for rotating the CD disc 31, 33 is a sled motor for driving the CD laser pickup 32 to the inner and outer circumferences of the CD disc 31, and 35 is the spindle motor 34 and sled. It is a motor control circuit that controls the motor 33.

Reference numeral 34 is a C for controlling the CD block.
In the D control circuit, the CD control circuit 34 controls the motor control circuit 35 that controls the spindle motor 34 and the sled motor 33, and controls / processes the mechanism based on the input from the mechanical switch input terminal 41 and the sub-code. It processes data and controls the digital signal processing circuit 37.

Reference numeral 42 is a system control circuit, which gives instructions to the MD control circuit 18 and the CD control circuit 40. Reference numeral 43 is an operation key signal input terminal to which an input signal from an operation key group (not shown) is input, and 44 is a display portion. The MD control circuit 19 and the CD control circuit 3
2. The main control circuit 33 is composed of a system controller using a microcomputer.

Next, the operation of the apparatus of the present invention will be described with reference to the flowchart of FIG. At the time of recording from the CD of the CD block to the magneto-optical disk of the MD block (S1), the system control circuit 42 first confirms whether the CD block is in the program reproduction mode (S2). Then, it is judged whether the number of programmed tracks is two or more (S3). Here, the description will proceed based on a program example as shown in the table below. In this example, the case where the track 1, the track 2, and the track 8 of the CD are recorded in the MD is shown. As described above, in this example, the number of programs is three, and the variable n is represented, and the variable for storing the corresponding track number is represented by T (n).

[0022]

[Table 1]

Next, n is set to "1" and the variable T
total and variable RecTime are cleared (S
4). Here, Total is a variable that stores the addresses (time) required to record all programmed tracks in the MD, and RecTime is a variable that stores the addresses of each track recorded in the MD. And T
The contents of (n) and the contents of T (n + 1) are compared to determine whether the stored track numbers are discontinuous (S
5).

If the track numbers of T (n) and T (n + 1) are consecutive, the address calculation is performed based on the reproduction time of the track of T (n), while T (n) is calculated.
And the track numbers of T (n + 1) are discontinuous, T
The address is calculated by adding the trash area to the track reproduction time of (n) (S7), the value of n is updated by 1 (S8), and the recording (scheduled) address to the MD is added (S9).

Then, it is confirmed whether or not n exceeds the total number of programs (S10).
Return to 5) and repeat the same processing.

By the way, when the program reproduction of the CD is not designated in the above (S2),
If the number of programs is 1 in 3), CD as usual
The address may be calculated based on the reproduction time of the track (S17, S18).

When the address calculation is performed for all the programmed tracks in this way, the result is Tot in the end.
The total address required for recording on the magneto-optical disk is stored in al. The address stored in the Total and the present remaining address of the magneto-optical disk: recordable time are compared (S11), and if all the tracks of the CD can be recorded on the magneto-optical disk, recording is started (S12),
On the other hand, when all the tracks of the CD cannot be recorded on the magneto-optical disk, the tracks are selected so that as many tracks as possible can be recorded, and the track number (or the track name in the case of CD-TEXT may be displayed on the display unit 44. ) Is displayed (S15), recording is started (S1).
6) When the recording of the predetermined track is completed, the device stops (S13). Thus, in the device of the present invention, the occurrence of the trash area is predicted before the recording from the CD device to the MD device. Since the address calculation is performed after including the influence of the above, it is possible to eliminate the inconvenience that the track of the selected CD cannot be recorded due to the occurrence of the trash area as in the conventional apparatus.

Even in the apparatus of the present invention, there are cases where all the selected tracks cannot be recorded. However, since the tracks are selected and recorded so that as many tracks as possible can be recorded, the tracks can be recorded as in the conventional apparatus. There will be no inconvenience that the recording will be terminated in the middle of. Also,
In such a case, the apparatus of the present invention displays a recordable track number (or a track name in the case of CD-TEXT) to the user.

[0029]

As described above in detail, according to the present invention, a reproducing apparatus for reproducing a recorded recording medium in which a plurality of information signals are recorded as a plurality of tracks and an information signal reproduced by the reproducing apparatus are provided. In an information reproducing-recording apparatus having a recording apparatus for recording in a recordable recording medium for each predetermined recording unit, a reproducing order designating unit for designating a reproducing order of tracks recorded on the recorded recording medium, and the reproducing order. The continuity of the track designated by the designating means on the recorded recording medium is confirmed, and when the track is not continuous, the last recording unit for recording the information signal of the track on the front side of the part where the track is not continuous. For recording the information signal in the entire area of the recording unit, recording time integrating means for calculating the recording time, and outputting the information signal from the reproducing device to the recording device. Since the recording time accumulated by the recording time accumulating means and the recordable time of the recordable recording medium are compared with each other in advance, whether all the selected tracks can be recorded on the recording medium before starting recording. You can know exactly.

Further, according to the present invention, a reproducing apparatus for reproducing a recorded recording medium on which a plurality of information signals are recorded as a plurality of tracks and an information signal reproduced by the reproducing apparatus are recorded on a recordable recording medium. In an information reproducing-recording device having a recording device for recording every recording unit, the reproducing order designating means for designating the reproducing order of the tracks recorded on the recorded recording medium, and the reproducing order designating means. When the continuity of the tracks on the recorded recording medium is confirmed, and when the tracks are not continuous, the last recording unit for recording the information signal of the track on the front side of the portion where the tracks are not continuous is the same as the recording unit. A recording time integrating means for calculating a recording time for recording the information signal in the entire area, and before outputting the information signal from the reproducing device to the recording device, The recording time accumulated by the recording time accumulating means is compared with the recordable time of the recordable recording medium, and when all the tracks cannot be recorded on the recordable recording medium, the number of recorded tracks becomes maximum. Since the tracks are selected as described above, the recording is not interrupted in the middle of the tracks.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing a configuration of a device of the present invention.

FIG. 2 is a flowchart showing the operation of the device of the present invention.

FIG. 3 is a diagram for explaining the operation of a conventional device.

[Explanation of symbols]

1 Analog signal input terminal 2 A / D conversion circuit 3 ATRAC processing circuit 4 Digital signal processing circuit 5 RF amplifier for recording 6 Shockproof memory circuit 7 Recording magnetic head 8 MD laser pickup 9 MD recording disc 10 ADIP demodulation circuit 11 Digital signal processing circuit 12 ATRAC processing circuit 13 D / A conversion circuit 14 Analog signal output terminal 15 Spindle motor 16 thread motor 17 Motor control circuit 18 MD control circuit 19 Mechanical switch input terminal 31 CD disc 32 CD laser pickup 33 thread motor 34 Spindle motor 35 Motor control circuit 36 Playback RF amplifier 37 Digital signal processing circuit 38 D / A conversion circuit 39 Analog signal output terminal 40 CD control circuit 41 Mechanical switch input terminal 42 System control circuit 43 Operation key signal input terminal 44 Display

Claims (4)

(57) [Claims] 1. A reproducing apparatus for reproducing a recorded recording medium on which a plurality of information signals are recorded as a plurality of tracks, and an information signal reproduced from the reproducing apparatus is recorded on a recordable recording medium for each predetermined recording unit. Information reproduction with recording device-
In the recording device, a reproduction order designating means for designating a reproduction order of the tracks recorded on the recorded recording medium, and a continuity of the tracks designated by the reproduction order designating means on the recorded recording medium are confirmed. When the tracks are not continuous, the recording time is calculated as the information signal is recorded in the entire area of the recording unit for the last recording unit in which the information signal of the track on the front side of the portion where the track is not continuous is recorded. Recording time integration means, and compares the recording time integrated by the recording time integration means with the recordable time of the recordable recording medium prior to the output of the information signal from the reproducing device to the recording device. An information reproducing-recording device characterized by the above. 2. Displaying whether or not all tracks can be recorded on the recordable recording medium by comparing the recording time accumulated by the recording time accumulating means with the recordable time of the recordable recording medium. An information reproducing / recording apparatus according to claim 1, wherein: 3. A reproducing apparatus for reproducing a recorded recording medium on which a plurality of information signals are recorded as a plurality of tracks, and an information signal reproduced from the reproducing apparatus is recorded on a recordable recording medium for each predetermined recording unit. Information reproduction with recording device-
In the recording device, a reproduction order designating means for designating a reproduction order of the tracks recorded on the recorded recording medium, and a continuity of the tracks designated by the reproduction order designating means on the recorded recording medium are confirmed. When the tracks are not continuous, the recording time is calculated as the information signal is recorded in the entire area of the recording unit for the last recording unit in which the information signal of the track on the front side of the portion where the track is not continuous is recorded. Recording time integrating means, and compares the recording time integrated by the recording time integrating means with the recordable time of the recordable recording medium prior to the output of the information signal from the reproducing device to the recording device. When all the tracks cannot be recorded on the recordable recording medium, the tracks are selected so that the number of recorded tracks becomes the maximum. Recording device - information reproduction to be. 4. The information reproducing / recording device according to claim 3, wherein the tracks selected so as to maximize the number of tracks recorded on the recordable recording medium are displayed.