JP3944350B2 - Recording / reproducing apparatus, high-speed recording method, and recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording / playback apparatus that records high-speed played music data on a predetermined recording medium at high speed. In particular, the music data can be appropriately recorded at high speed while protecting copyright and the like for each music data. The present invention relates to a recording / reproducing apparatus, a high-speed recording method, and a recording medium.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a recording / reproducing apparatus capable of recording music data (audio signal) obtained by reproducing a CD (compact disc) or the like on an MD (mini disc) or the like is known.
In such a recording / reproducing apparatus, for example, a CD reproducing mechanism and an MD recording mechanism are provided in one apparatus, and each is controlled by a control microcomputer. The recording / reproducing apparatus can record the music data of the CD reproduced by the CD reproducing mechanism on the MD to be recorded by the MD recording mechanism with almost no deterioration in sound quality or the like. Also, since recording such as exchanging music data is easy after recording on MD, such a recording / playback apparatus is widely used.
[0003]
In recent years, there has also been a recording / playback apparatus capable of recording music data played at high speed (high speed playback; for example, double speed playback) with a CD playback mechanism at high speed (high speed recording; for example, double speed recording) with an MD recording mechanism. Are known. Such a recording / playback apparatus can reduce the time required for recording, and can record more music data within the same time.
Such a recording / playback apparatus capable of high-speed recording, as a general rule, realizes copyright protection based on a rainbow book (MD standard) and the like. For example, the recording / reproducing apparatus once prohibits high-speed recording from the same disc (CD) for a certain period of time (for example, 74 minutes) after once recording predetermined music data from CD to MD at high speed. In other words, the recording / reproducing apparatus performs copyright protection for each disk during high-speed recording.
The copyright protection for each disk is inconvenient for the user because even if other music data is recorded at high speed from the same disk, recording is not permitted until a certain time has elapsed. Considering this point, a recording / reproducing apparatus that protects copyright for each track (music data) instead of protecting copyright for each disk is also known recently.
[0004]
Such a recording / playback apparatus that protects copyright for each track generally manages music data that has been recorded at high speed using internal data that is individually added to each music data in a CD. Specifically, the recording / reproducing apparatus identifies music data recorded at high speed using ISRC (International Standard Recording Code) information or TEXT information in the Q code, and prohibits high-speed recording of the same music data within a certain time. is doing.
This allows the user to record at high speed with a recording / playback device without waiting for a certain period of time without violating copyright protection, etc. It can be performed.
[0005]
[Problems to be solved by the invention]
However, in some cases, the above-described recording / playback apparatus cannot actually realize copyright protection for each track. This is because ISRC information, TEXT information, and the like are not always added to all CDs.
That is, when high-speed recording is performed using a CD to which ISRC information or the like is added, copyright protection can be performed for each track, but high-speed recording is performed using a CD to which ISRC information or the like is not added. In this case, since music data cannot be identified, copyright protection for each track cannot be realized.
For this reason, the conventional recording / reproducing apparatus, when recording at a high speed using a CD to which ISRC information or the like is not added, eventually has to perform the above-described copyright protection for each disk.
[0006]
The present invention has been made in view of the above circumstances, and provides a recording / reproducing apparatus, a high-speed recording method, and a recording medium capable of appropriately recording each piece of music data at high speed while protecting copyright and the like for each piece of music data. The purpose is to provide.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a recording / reproducing apparatus according to the first aspect of the present invention provides:
A recording / playback device for high-speed playback of a playback target medium on which music data is recorded, and for recording the played back music data on the recording target medium at a high speed,
Storage means for storing information for identifying a reproduction target medium that has performed high-speed recording within a predetermined time, and information for specifying individual music data or all music data in the reproduction target medium that has been recorded;
A selection means for selecting arbitrary music data or all music data in a reproduction target medium to be subjected to high-speed recording;
The information stored in the storage means, the information for identifying the reproduction target medium to be recorded at high speed this time, and the music data selected by the selection means are compared, and any desired music data or all music A discriminating means for discriminating whether or not the data is in a recording prohibited state;
When the determination means determines that the recording is not prohibited, the recording control means for high-speed recording of the target music data played at high speed,
Information for identifying the reproduction target medium on which the recording control unit has recorded this time and information for specifying any recorded music data or all music data recorded are additionally stored in the storage unit. Memory control means;
It is characterized by providing.
[0011]
The storage means further stores remaining time information indicating a remaining time during which high-speed recording specified in the music data is prohibited,
The storage control unit updates the remaining time information stored in the storage unit at a predetermined timing, and deletes the target information from the storage unit when the updated remaining time information reaches a predetermined value. May be.
[0012]
In order to achieve the above object, a high-speed recording method according to the second aspect of the present invention comprises:
A high-speed recording method for high-speed playback of a reproduction target medium on which music data is recorded, and high-speed recording of the reproduced music data on the recording target medium,
A storage step of adding information for identifying a reproduction target medium that has been subjected to high-speed recording and information for specifying individual music data or all music data that has been subjected to high-speed recording to a predetermined storage unit; ,
A selection step of selecting arbitrary music data or all music data in a reproduction target medium to be subjected to high-speed recording;
The information stored in the storage unit in the storage step is compared with the information for identifying the reproduction target medium to be recorded at this time, and the music data selected in the selection step, and any target A determination step of determining whether or not the music data or all the music data is in a recording prohibited state;
When it is determined that the recording step is not in the recording prohibition state, a recording control step for recording the target music data that has been played back at a high speed,
It is characterized by providing.
[0014]
In order to achieve the above object, a recording medium according to the third aspect of the present invention provides:
A recording medium that records a program for causing a computer to execute a high-speed recording method for high-speed reproduction of a reproduction target medium on which music data is recorded, and high-speed recording of the reproduced music data on the recording target medium,
A storage step of adding information for identifying a reproduction target medium that has been subjected to high-speed recording and information for specifying individual music data or all music data that has been subjected to high-speed recording to a predetermined storage unit; The selection step for selecting any song data or all song data in the playback target medium that is the target of high speed recording, the information stored in the storage unit in the storing step, and the playback target medium that is currently subjected to high speed recording are identified A discriminating step for comparing the information to be performed and the music data selected in the selection step, and discriminating whether or not any target music data or all music data is in a recording prohibited state; and the discrimination A high-speed recording method comprising: a high-speed recording method for high-speed recording of music data to be reproduced at a high speed when it is determined that the recording is not prohibited in the step. It records a program to be executed by the over data.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A recording / reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
[0016]
FIG. 1 is a block diagram showing an example of a recording / reproducing apparatus applied to the embodiment of the present invention. A recording / playback apparatus 1 shown in FIG. 1 is a device capable of high-speed playback of a CD (compact disc) and high-speed recording of the obtained music data on an MD (minidisc), for example. The signal processing circuit 12, the MD servo circuit 13, the MD optical pickup 14, the CD optical pickup 15, the CD servo circuit 16, the timer 17, the key input unit 18, the display unit 19, A memory 20, a magnetic head driver 21, and a DAC 22 are included.
[0017]
The processing control unit 11 includes a one-chip microcomputer including a CPU (Central Processing Unit) and a peripheral LSI (Large Scale Integration), and controls the entire recording / playback apparatus 1.
That is, the process control unit 11 controls the CD optical pickup 15 and the CD servo circuit 16 to reproduce the CD at high speed, and records the obtained music data on the MD via the magnetic head driver 21 and the like at high speed. .
[0018]
At this time, the processing control unit 11 determines whether or not the music data (track) of the recording target CD is in a high-speed recording prohibited state, and appropriately protects music data that is not in a prohibited state while protecting copyrights and the like. High speed recording. Specifically, the process control unit 11 manages the recording prohibited state for each piece of music data using a recording management table stored in the memory 20 described later. Then, high-speed recording is permitted only for music data that is not managed in the recording management table (not recorded at high speed within a certain time).
[0019]
The signal processing circuit 12 controls the MD servo circuit 13, the MD optical pickup 14, the CD optical pickup 15, the CD servo circuit 16, the magnetic head driver 21, and the like. For example, the signal processing circuit 12 controls the CD optical pickup 15 and the like to reproduce the CD at high speed to read the music data, and controls the magnetic head driver 21 and the like to record the music data on the MD at high speed.
[0020]
The MD servo circuit 13 drives and controls a spindle motor (not shown) for rotating a predetermined turntable on which an MD as a recording medium is mounted, and rotates the motor at a predetermined rotation speed.
Further, the MD servo circuit 13 drives and controls a thread motor (not shown) for translating the MD optical pickup 14 in the MD radial direction so that the MD optical pickup 14 is placed at a predetermined position on the recording surface of the MD. Move.
[0021]
The MD optical pickup 14 irradiates the recording surface of the MD with laser light at the time of recording music data and heats it until it reaches the Curie point or higher.
The MD optical pickup 14 irradiates a recording surface of the MD with laser light having a predetermined wavelength when reproducing music data, receives the reflected light, and converts it into an electrical signal. The optical pickup 14 for MD supplies the converted electric signal to the signal processing circuit 12 as music data or the like.
[0022]
The CD optical pickup 15 irradiates a CD recording surface with a laser beam having a predetermined wavelength, receives the reflected light, and converts it into an electrical signal. Then, the converted electric signal is supplied to the signal processing circuit 12 as music data or the like.
[0023]
The CD servo circuit 16 drives and controls a spindle motor for rotating a turntable on which a CD as a recording medium is mounted, and rotates the spindle motor at a predetermined rotation speed. Further, the CD servo circuit 16 drives and controls a thread motor for translating the CD optical pickup 15 in the CD radial direction, and moves the CD optical pickup 15 to a predetermined position on the CD recording surface.
[0024]
The timer 17 includes an interval timer and the like, and is controlled by the processing control unit 11. For example, a predetermined signal is generated and supplied to the processing control unit 11 every minute.
[0025]
The key input unit 18 includes a predetermined button switch, a rotary switch, and the like. The key input unit 18 inputs instruction information according to a user operation and supplies the input information to the processing control unit 11. For example, the key input unit 18 supplies information for instructing high-speed recording to the processing control unit 11 and inputs a track number for selecting music data to be subjected to high-speed recording and supplies the track control unit 11 with the track number. .
[0026]
The display unit 19 includes an LCD (Liquid Crystal Display) panel or the like, and is controlled by the processing control unit 11 to display a character string or the like for clarifying an operation state or the like to the user. For example, the display unit 19 displays the track number during high-speed recording, or the remaining time until the recording prohibited state for the predetermined music data is released.
[0027]
The memory 20 is composed of a nonvolatile RAM (Random Access Memory) or the like, and stores information such as a recording management table 31 as shown in FIG.
The recording management table 31 shown in FIG. 2A is a table for managing music data (prohibited music data) for which high-speed recording is prohibited for a certain period of time for each track. The minimum Tno, the maximum Tno, and the total are recorded. (Minutes), Total (seconds), prohibited Tno, and prohibited (minutes).
[0028]
The minimum Tno and the maximum Tno in the figure are information indicating the minimum track number and the maximum track number of a CD on which prohibited music data is recorded.
Total (minutes) and Total (seconds) are information indicating the total playback time (minutes and seconds) of a CD on which prohibited music data is recorded.
These minimum Tno to Total (seconds) are used as information for identifying the CD. That is, since the number of songs (number of tracks) and the total playback time recorded on the CD are different for each CD in principle, these pieces of information are used to identify the CD.
Specifically, in the “prohibition 1” and “prohibition 3” in the figure, these information indicated by a1 and a2 are both “01 (minimum) −20 (maximum)” and the total reproduction Since the time is “65 minutes 28 seconds”, they are identified as the same CD.
[0029]
The prohibited Tno is information indicating the track number in the CD of the prohibited music data. Note that “AA” indicated by b1 in “Prohibition 2” in the figure indicates that all songs (all tracks) are recorded at high speed.
Prohibition (minutes) is information indicating the remaining time (minutes) until recording of prohibited music data becomes possible. This prohibition (minute) is set, for example, to “74” (74 minutes) as an initial value by the processing control unit 11 and is subtracted by 1 every minute. When the value of the prohibition (minute) becomes “0”, the processing control unit 11 deletes the information related to the target music data (the above-described minimum Tno˜prohibition (minute) information).
[0030]
Specifically, as shown in FIG. 2 (b), when the value of “prohibition (1)” is “0” as time passes, the information after “prohibition 2” is displayed. By sequentially shifting to the left (in the “prohibition 1” direction), the original “prohibition 1” information is deleted. That is, the music data of the track number “06” of the CD having the number of music pieces “01 (minimum) −20 (maximum)” and the total reproduction time “65 minutes 28 seconds” is deleted from the recording management table 31. The prohibition state of the music data is released.
For example, a value such as “FF” is set for “empty” in the figure.
[0031]
Returning to FIG. 1, the magnetic head driver 21 controls a magnetic head (not shown). That is, the magnetic head driver 21 controls the magnetic head during a recording operation, and magnetizes a predetermined portion of the recording surface of the MD heated to the Curie point or higher by the MD optical pickup 14, thereby converting the music data into the MD. Record.
[0032]
The DAC (digital / analog converter) 22 converts the digital music data supplied from the signal processing circuit 12 into an analog music signal, and the converted music signal is voiced (musical sound) via a predetermined amplifier and speaker. Output as.
[0033]
The operation of the recording / reproducing apparatus 1 according to the embodiment of the present invention will be described below with reference to FIG. FIG. 3 is a flowchart for explaining high-speed recording processing executed by the processing control unit 11 and the like.
Note that the high-speed recording process shown in FIG. 3 is started after the CD to be reproduced and the recordable MD are loaded into the recording / reproducing apparatus 1 by the user.
[0034]
First, the process control unit 11 waits for subsequent processes until a high-speed recording instruction is input (step S11). That is, the process control unit 11 waits for execution of subsequent processing until information for instructing the start of high-speed recording is input via the key input unit 18.
[0035]
When a high-speed recording instruction is input, the process control unit 11 determines whether or not TOC (Table Of Contents) information has been acquired (step S12). That is, the process control unit 11 determines whether or not the TOC information has been read from the reproduction target CD.
Then, the process control unit 11 reads the TOC information from the reproduction target CD only when it is determined that the TOC information has not been acquired (step S13).
[0036]
The process control unit 11 searches the recording management table 31 using the minimum / maximum Tno and the total time included in the read TOC information (step S14). That is, the same information is searched from the recording management table 31 using the minimum Tno, maximum Tno, Total (minutes), and Total (seconds) for identifying the CD.
[0037]
The process control unit 11 determines whether or not the same information exists as a result of the search (step S15). That is, the process control unit 11 records any music data from the same CD at high speed, and sets information indicating the music data in the prohibited state in any prohibited area (prohibited 1 to prohibited n) of the recording management table 31. It is determined whether or not.
[0038]
If the process control unit 11 determines that the same information does not exist, the process control unit 11 advances the process to step S19 described later. On the other hand, if it is determined that the same information exists, the processing control unit 11 determines whether or not a value indicating all-track recording is set in the prohibited Tno of the target prohibited area (step S16). That is, it is determined whether or not “AA” indicating all-track recording is set in the prohibited Tno of the prohibited area where the same searched information is set.
[0039]
If it is determined that the value indicating all-track recording is not set in the prohibited Tno (an arbitrary track number is set), the process control unit 11 determines whether Tno matches (step S17). That is, it is determined whether or not the track number of the music data to be recorded at this time coincides with the value set in the prohibited Tno.
[0040]
If it is determined that Tno matches, or if it is determined in step S16 that the value indicating recording of all songs has been set to prohibited Tno, the processing control unit 11 is prohibited from performing high-speed recording without performing high-speed recording. The remaining time is displayed on the display unit 19 (step S18). That is, the process control unit 11 displays the remaining time, which is a value set in the prohibition (minute) of the target prohibited area, on the display unit 19. The process control unit 11 ends the high-speed recording process after displaying the remaining time.
With this display, the user can determine that the song data for which high-speed recording has been specified is currently in a state where high-speed recording is prohibited, and at the same time, confirm the waiting time until another high-speed recording can be performed. it can.
[0041]
If it is determined in step S17 that the Tnos do not match and if it is determined in step S15 that the same information does not exist, the process control unit 11 manages the music data to be recorded at this time. Therefore, the minimum / maximum Tno and Total time are newly added to the recording management table 31 (step S19). That is, information from the minimum Tno to Total (seconds) is set in a prohibited area that is not used.
[0042]
The process control unit 11 determines whether or not the music data to be subjected to high-speed recording this time is all tracks (all music recordings) (step S20). The number is set in the prohibited Tno of the prohibited area to which information is newly added in step S19 (step S21). On the other hand, if it is determined that the recording is for all songs, the process control unit 11 sets “AA”, which is a value indicating the recording of all songs, to the prohibited Tno of the added prohibited area (step S22).
[0043]
Then, a predetermined prohibition time (for example, “74”) is set in the prohibition (minute) of the added prohibition area (step S23).
[0044]
When the processing control unit 11 sets the above information in the recording management table 31, the processing control unit 11 starts high-speed recording (step S24). That is, the process control unit 11 controls the CD optical pickup 15 and the like to reproduce the target CD track at a high speed, and records the obtained music data on the MD via the magnetic head driver 21 and the like.
[0045]
As described above, the recording management table 31 stores information for identifying a CD for which high-speed recording is prohibited and information for specifying prohibited music data. The recording management table 31 also manages the remaining time until the prohibition state is canceled, and when this remaining time is exhausted, information for identifying the CD, information for specifying the music data, and the like are erased. Is done.
Then, the process control unit 11 uses the recording management table 31 to appropriately determine whether or not the music data of the CD for which high-speed recording is performed at this time is in a prohibited state. Make high-speed recording. As a result, it is possible to appropriately record each piece of music data while protecting the copyright and the like for each piece of music data.
[0046]
Further, since the information for identifying the CD and the information for specifying the music data are obtained from the TOC information of the CD, the recording / reproducing apparatus 1 normally reads the TOC information without reproducing the music data. In addition, it is possible to immediately determine whether high-speed recording is possible for each piece of music data.
[0047]
In the above embodiment, the recording / reproducing apparatus for recording music data in MD has been described. However, the recording target medium is not limited to MD, and other than that, MO (Magneto-Optical disk), DVD-RAM (digital video). The present invention can be applied to a disk recording device that records music data on a disk-ram). Furthermore, a recording device or the like that can record music data on a medium such as SmartMedia (trademark) or Memory Stick (trademark) may be used.
[0048]
Note that the recording / reproducing apparatus of the present invention can be realized by using a normal computer system, not a dedicated system. For example, by installing the program from a medium (floppy disk, CD-ROM, etc.) storing a program for executing any of the above in a computer equipped with an MD drive or the like capable of recording music data in the MD, A recording / playback apparatus that performs the above-described processing can be configured.
[0049]
The medium for supplying the program to the computer may be a communication medium (a medium that temporarily and fluidly holds the program, such as a communication line, a communication network, or a communication system). For example, the program may be posted on a bulletin board (BBS) of a communication network and distributed via the network.
Then, the above-described processing can be executed by starting this program and executing it in the same manner as other application programs under the control of the OS.
[0050]
【The invention's effect】
As described above, according to the present invention, each piece of music data can be appropriately recorded at high speed while protecting the copyright and the like for each piece of music data.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an example of a configuration of a recording / reproducing apparatus according to an embodiment of the present invention.
FIG. 2A is a schematic diagram showing an example of a recording management table stored in a memory, and FIG. 2B is a schematic diagram for explaining how information is deleted from the recording management table.
FIG. 3 is a flowchart for explaining high-speed recording processing according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 11 Processing control part 12 Signal processing circuit 13 Servo circuit for MD 14 Optical pick-up for MD 15 Optical pick-up for CD 16 Servo circuit for CD 17 Timer 18 Key input part 19 Display part 20 Memory 21 Magnetic head driver 22 DAC

Claims (4)

A recording / playback device for high-speed playback of a playback target medium on which music data is recorded, and for recording the played back music data on the recording target medium at a high speed,
Storage means for storing information for identifying a reproduction target medium that has performed high-speed recording within a predetermined time, and information for specifying individual music data or all music data in the reproduction target medium that has been recorded;
A selection means for selecting arbitrary music data or all music data in a reproduction target medium to be subjected to high-speed recording;
The information stored in the storage means, the information for identifying the reproduction target medium to be recorded at high speed this time, and the music data selected by the selection means are compared, and any desired music data or all music A discriminating means for discriminating whether or not the data is in a recording prohibited state;
When the determination means determines that the recording is not prohibited, the recording control means for high-speed recording of the target music data played at high speed,
Information for identifying the reproduction target medium on which the recording control unit has recorded this time and information for specifying any recorded music data or all music data recorded are additionally stored in the storage unit. Memory control means;
A recording / playback apparatus comprising: The storage means further stores remaining time information indicating a remaining time during which high-speed recording specified in the music data is prohibited,
The storage control unit updates the remaining time information stored in the storage unit at a predetermined timing, and deletes the target information from the storage unit when the updated remaining time information reaches a predetermined value. To
The recording / reproducing apparatus according to claim 1 . A high-speed recording method for high-speed playback of a reproduction target medium on which music data is recorded, and high-speed recording of the reproduced music data on the recording target medium,
A storage step of adding information for identifying a reproduction target medium that has been subjected to high-speed recording and information for specifying individual music data or all music data that has been subjected to high-speed recording to a predetermined storage unit; ,
A selection step of selecting arbitrary music data or all music data in a reproduction target medium to be subjected to high-speed recording;
The information stored in the storage unit in the storage step is compared with the information for identifying the reproduction target medium to be recorded at this time, and the music data selected in the selection step, and any target A determination step of determining whether or not the music data or all the music data is in a recording prohibited state;
When it is determined that the recording step is not in the recording prohibition state, a recording control step for recording the target music data that has been played back at a high speed,
A high-speed recording method comprising: A recording medium that records a program for causing a computer to execute a high-speed recording method for high-speed reproduction of a reproduction target medium on which music data is recorded, and high-speed recording of the reproduced music data on the recording target medium,
A storage step of adding information for identifying a reproduction target medium that has been subjected to high-speed recording and information for specifying individual music data or all music data that has been subjected to high-speed recording to a predetermined storage unit; The selection step for selecting any song data or all song data in the playback target medium that is the target of high speed recording, the information stored in the storage unit in the storing step, and the playback target medium that is currently subjected to high speed recording are identified A discriminating step for comparing the information to be performed and the music data selected in the selection step, and discriminating whether or not any target music data or all music data is in a recording prohibited state; and the discrimination A high-speed recording method comprising: a high-speed recording method for high-speed recording of music data to be reproduced at a high speed when it is determined that the recording is not prohibited in the step. A computer-readable recording medium storing a program to be executed by the over data.

Images