WO2004023475A1 - 多重記録媒体、記録再生装置及び記録再生方法 - Google Patents
多重記録媒体、記録再生装置及び記録再生方法 Download PDFInfo
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- WO2004023475A1 WO2004023475A1 PCT/JP2002/008776 JP0208776W WO2004023475A1 WO 2004023475 A1 WO2004023475 A1 WO 2004023475A1 JP 0208776 W JP0208776 W JP 0208776W WO 2004023475 A1 WO2004023475 A1 WO 2004023475A1
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Definitions
- the present invention utilizes a recording medium having both functions of ROM (Read Address 1) with optical phase pits formed on a substrate and RAM (Random Access Memory) with a recording film.
- the present invention relates to a multiplex recording medium, a recording / reproducing apparatus, and a recording / reproducing method for performing multiplex recording and simultaneous reproduction of content, and in particular, to reduce discomfort during simultaneous reproduction even when multiplex recording is performed on one recording medium.
- CDs Compact Discs
- MD Mini Disc
- the conventional way of listening to music is to purchase a medium, such as a CD, in which music information is recorded in advance as RO.M and listen to it, or record your favorite music on an MD or the like.
- the way of enjoying listening is common.
- the recording device must be operated at the same time, which is troublesome. Also, for example, in the method of playing a musical instrument while playing a CD and recording with an external input mic, etc., it is difficult to adjust the volume balance between the CD playback and the performance. Was extremely difficult to record.
- overdubbing is performed.
- different music is recorded for each track of a recording medium having multiple recording tracks.
- the music is recorded on the first track in advance, and the sound is played back and listened to, and the sound is recorded on another track.
- the piano and guitar can be played simultaneously.
- a high-speed, large-capacity storage device is required, and hard disks are mainly used.
- the multiplex recording system using a hard disk is intended for music production, advanced editing is required and complicated operations are required. Therefore, the multi-recording system using a hard disk is used for a limited part, but is not widely used.
- the magnetic recording medium does not have a ROM portion such as the phase pitch of an optical disc, it is necessary to magnetically record music for each piece in order to record music in advance. There is also the problem of rising.
- a multi-recording system that uses MD (Mini Disk) as a medium that is simpler and easier to handle than hard disks has also been realized.
- MD Mini Disk
- the use of MD makes the medium cheaper, but it is the same as a device using a hard disk in that the user must record music on multiple tracks in order.
- the method using concurrent ROM / RAM media has the potential to realize inexpensively the multiple recording and simultaneous playback functions that were limited to some experts.
- a medium including a ROM and a RAM is used, and music or image information is recorded in advance in a ROM section using a phase pit, and music recorded in the ROM is read.
- a method has been proposed in which another music or image information is recorded in the RAM at the same position in synchronization with the image playback.
- the first reason is that there is no way to know when to start playing.
- a timing counting means such as a conductor, to adjust the timing of each other and to perform.
- the recording side cannot grasp the timing, and the timing of the start of the performance is delayed.
- the second reason is that, for example, when playing the guitar or piano or singing while listening to the music output from the speakers by playing the ROM section of the medium, the sound information is transmitted from the speakers. There is a time delay before it reaches the performer or singer. This delay becomes more pronounced as the distance between the player and the player increases.
- the positional relationship between the sound source such as a speaker and the performer or singer is not fixed because the user can arbitrarily set it. Therefore, it is difficult to perfectly align the position of the music in the ROM section and the recording position in the RAM section during recording.
- an object of the present invention is to realize a virtual session function and a multiplex recording function, which have been limited to some specialists, at a low cost, and to realize a multiplex for reproducing music with sufficient quality.
- An object of the present invention is to provide a recording medium, a recording / reproducing device, and a recording / reproducing method.
- Another object of the present invention is to reproduce the recorded content of the ROM while simultaneously multiplexing and recording the content in the RAM. It is an object of the present invention to provide a multiplex recording medium, a recording / reproducing apparatus and a recording / reproducing method.
- Another object of the present invention is to provide a multiplex recording medium, a recording / reproducing apparatus, and a recording apparatus for multiplex-recording content in a RAM while reproducing recorded content in a ROM while synchronizing recording timing in accordance with the content. It is to provide a reproduction method.
- the multiplex recording medium of the present invention comprises: a substrate on which first content information is recorded by phase pits utilizing a change in light reflectance; and a recording / reproducing method using light provided on the substrate.
- a buffer area is provided in which information for controlling the timing is formed by the phase pit.
- the recording layer is constituted by a magneto-optical recording film.
- the recording / reproducing apparatus of the present invention provides a multiplex recording medium having a recording layer capable of recording and reproducing by light on a substrate on which the first content information is recorded by a phase pit utilizing a change in light reflectance.
- An optical pickup for irradiating light to separate and detect the information of the phase pits and the information of the recording layer;
- a magnetic recording head for recording information on the recording layer, and a second content information input along with the reproduction of the first information, a recording timing added to the first content information.
- a controller that records the first content information of the phase pits and the second content information of the recording layer from an optical pickup in accordance with the information, and a controller that records the first content information of the phase pit from the optical pickup; And an output mechanism for synthesizing and outputting at least one of the second content information and the second content information.
- the recording / reproducing method of the present invention provides an optical recording medium comprising: a multiplex recording medium having a recording layer capable of recording and reproducing by light on a substrate on which the first content information is recorded by phase pits utilizing a change in light reflectance; While reproducing the first content information of the phase pit, the input second content information according to the recording timing information added to the first content information. And reproducing the first content information of the phase bit and the second content information of the recording layer, and at least one of the reproduced first and second content information. Delaying and combining and outputting.
- the start and end signals of the recording on the RAM are controlled by using the ROM recording start and end signals. Therefore, the content recording position of the RAM with respect to the content of the ROM can be made uniform and the time lag can be controlled. This makes it possible to easily and inexpensively realize the virtual session function and the multiplex recording function, which were previously limited to some experts.
- the evening information formed in the buffer area comprises a signal for starting and ending recording of the second content.
- the timing information formed in the buffer area comprises a signal indicating a time until a start of reproduction of the first content information.
- the controller is A signal for recording start and recording end of the second content, which is the added recording timing information, is detected from the information of the phase pit, and a signal of the second content information to the recording layer is detected. Controls recording start and recording end.
- the controller reproduces and outputs a signal indicating a time until the start of reproduction of the first content information included in the recording timing information added as described above.
- the recording step includes: a signal for starting and ending recording of the second content, which is the recording timing information added as described above, And controlling the start and end of recording of the second content information on the recording layer.
- the recording step reproduces a signal indicating a time until a start of reproduction of the first content information included in the added recording timing information, and outputs the signal.
- the method further comprises the step of:
- the aspect of the present invention when recording in the RAM while reproducing the ROM by using the concurrent RO MZRAM recording medium, it is possible to control the recording in the RAM by using the: ROM timing signal.
- the content recording position of the RAM with respect to the content of the ROM can be made uniform, the time lag can be controlled more, and simultaneous reproduction can be performed at the time of reproduction. This makes it possible to easily and inexpensively realize the virtual session function and the multiplex recording function, which have been limited to some experts.
- the timing information formed in the buffer area comprises a signal indicating a temporal timing of the second content information.
- the controller is configured to perform the second recording in accordance with a signal indicating a temporal timing of the second content information included in the added timing information. Add time information to the content report.
- the controller The timing signal of the phase bit information is compared with the time information added to the second core information of the recording layer to control the delay amount of the combining output mechanism.
- the step of synthesizing and outputting includes the timing signal of the phase pit information and the time information added to the second content information of the recording layer.
- the method further includes the step of controlling the delay amount of the composite output mechanism.
- the time information provided in the phase pits is added to the time information of the recording data of the recording layer, and the amount of delay during synthesis is automatically controlled, so that the time lag can be automatically adjusted.
- the first content information formed by the phase pits is music information converted into a digital audio signal.
- the composite output mechanism further includes means for adjusting an output ratio of the reproduced first and second content information.
- the composite output mechanism further includes means for adjusting at least one waveform of the reproduced first and second content information.
- FIG. 1 is a configuration diagram of a content recording / reproducing system according to an embodiment of the present invention.
- FIG. 2 is a detailed configuration diagram of the content recording / playback system of FIG.
- FIG. 3 is a configuration diagram of a magneto-optical disc as an example of an optical recording medium used in the system of FIG.
- FIG. 4 is a perspective view illustrating a recording state of the ROM information and the RAM information in the optical recording medium having the structure of FIG.
- FIG. 5 is an explanatory diagram showing a multiplex recording state of the optical recording medium of FIG.
- FIG. 6 is a diagram showing the relationship between the phase pitch area of each content in FIG. 5 and the magneto-optical RAM recording area.
- FIG. 7 is a configuration diagram of the phase pit area of FIG.
- FIG. 8 is a configuration diagram of an embodiment of the recording / reproducing apparatus of the present invention.
- Fig. 9 shows RO in playback and recording modes in the main controller in Fig. 8.
- FIG. 10 is a configuration diagram of the first embodiment of the main controller of FIG.
- FIG. 11 is a configuration diagram of a second embodiment of the main controller of FIG.
- FIG. 12 is an operation explanatory diagram of the configuration of FIG.
- FIG. 13 is another operation explanatory view of the configuration of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIGS. 1 and 2 are configuration diagrams of a content multiplexed recording / reproducing system according to an embodiment of the present invention. The content will be described using music as an example.
- FIG. 1 when a musical instrument such as a guitar 2B or a piano 2D is played, a musical signal converted into an electric signal is output from the musical instrument.
- the music signal output from the musical instrument is input to the recording / reproducing device 1, converted into a digital signal by the A / D converter, and recorded on the magneto-optical recording medium 3 described later.
- music ROM information previously recorded as phase pits on the same magneto-optical recording medium 3 is read, reproduced, and output to the speaker 2A.
- This ROM information may be, for example, a performance of a band other than the performance part of the musical instrument, such as a drum, a bass, a guitar, a chorus, a vocal, or an orchestra.
- the sound may be a rhythm with a constant interval.
- the performance of the musical instrument is performed while listening to the music information recorded in the ROM of the recording medium 3. In other words, a virtual session in which members of a band or an orchestra become members in a pseudo manner is realized.
- the performance of the musical instrument is recorded on the magneto-optical layer of the same magneto-optical recording medium 3.
- the sound signal from the guitar 2B is shown, but the signal input to the recording / reproducing device 1 may be the signal of the piano 2D or the vocal microphone 2C, or the signals of those instruments are synthesized. You can do it.
- This input signal is recorded in a RAM section of a concurrent ROM / RAM medium 3 described later using a magneto-optical recording film.
- the output signal of the speaker 2A is a reproduction signal of music information recorded in the medium 3 as R ⁇ M in advance.
- This ROM music playback signal is input to an output device 2A such as a speaker or a headphone.
- the output of the guitar, piano, and microphone may be output separately to a speaker (not shown) or the like, or may be combined with the ROM music playback signal and output from the same speaker 2A.
- the speaker 2A of FIG. 1 may be built in the recording / reproducing apparatus 1.
- Examples of the medium effective for simultaneous multiplex recording and simultaneous reproduction according to the present invention include a recording film including a magneto-optical recording layer on top of physically non-rewritable uneven phase pit information as shown in FIG. This is the medium 3 on which is formed.
- the recording / reproducing apparatus 1 is provided with a mechanism for reproducing music recorded in the ROM of the recording medium 3, playing while listening to the music, and performing multiple recording.
- the recording / reproducing device 1 includes a content selection section 9 It has. Further, by pressing the multi-recording button 97, the apparatus enters a recording mode in a manner to be described later, and the multi-recording is started by being temporally linked with the content playback.
- the data recorded in the RAM of the medium 3 is recorded with a time lag with respect to the ROM of the medium 3. You. In some cases, this shift may be undesirably large for music playback.
- the delay time can be arbitrarily adjusted by the user by the ROM delay time adjusting unit 91 according to the distance during the performance.
- the delay time may be fixed in advance depending on the application.
- time delay can be adjusted by adding a delay time adjustment function to the RAM signal.
- the delay time can be arbitrarily adjusted by the user using the RAM delay time adjustment unit 92 according to the distance during the performance.
- the delay time may be fixed in advance depending on the application.
- the ROM information and the RAM information can be reproduced and amplified separately, as described later, because the detection methods are different.
- the amplification gains of the ROM and RAM sections it is possible to change the ratio of the volume of the band or orchestra to the volume of the newly added instrument performance.
- the playback waveform it is possible to change the sound quality of the musical instrument performance in various ways.
- the ROM volume adjustment unit 94 and the RAM volume adjustment unit 95 are provided for the user to adjust the volume of the ROM and RAM, respectively.
- the ROM sound quality adjustment unit 90 and the AM sound quality adjustment unit 93 are ROM and RAM, respectively. It is provided for the user to adjust the sound of.
- the volume ratio and the sound quality can be adjusted at the time of reproduction, it is possible to reproduce music with a comprehensive balance. Also, instead of a plurality of tracks assigned to each instrument, the orchestra and band performances are recorded collectively in the ROM section of the medium 3. It is possible to easily listen to high-quality music without the need for complicated volume and sound quality adjustments required for recording.
- the performance of a simple single instrument may be recorded in the ROM section of Medium 3.
- the sound quality can be adjusted optimally according to the instrument used. For example, a guitar may be adjusted to distort the sound.
- FIG. 3 is an explanatory diagram of a content recording medium according to an embodiment of the present invention.
- FIG. 4 is a relationship diagram of the ROM signal and the RAM signal.
- the ISO standard magneto-optical disk 3 has a disk shape, with a lead-in area at the innermost circumference, a lead-out area at the outermost circumference, and a user area in between. Is provided.
- the lead-in area and the lead-out area are ROM information composed of phase pits formed on the polycarbonate substrate by the unevenness of the disk, and information such as the specification of the disk is recorded. By reading this, the recording and playback conditions are controlled.
- the optical depth (pit depth) of the phase pits serving as the ROM information is set so that the light intensity modulation during reproduction is maximized.
- the modulation degree is set to 70% or more (the ratio of the change in the light intensity of the phase pit portion to the light intensity of the flat portion).
- a user layer having a magneto-optical recording film formed by a sputtering device is provided between the lead-in area and the lead-out area. The user can freely record and play back information in this user directory.
- the structure of the magneto-optical disk 4 for providing the user area with ROM and RAM functions is as follows: a transparent (polycarbonate) substrate 4A having phase pits formed thereon is nitrided.
- the first dielectric layer 4 B made of silicon, tantalum oxide, or the like, the magneto-optical recording layer 4 C made of an amorphous alloy of a rare earth and a transition metal such as TbFeCo, and the first dielectric layer 4 B Second dielectric layer 4D made of the same material, reflective layer 4E made of metal such as AlTi, Au, etc. and UV-curable
- the structure of the protective coat layer 4F using a resin is generally used.
- the ROM function is given by the phase bits PP formed in the disk 3 unevenly
- the RAM function is given by the magneto-optical recording layer 4C.
- the recording on the magneto-optical recording layer 4C is performed by heating the laser beam on the magneto-optical recording layer 4C, assisting the magnetization reversal, and reversing the magnetization direction in accordance with the signal magnetic field, thereby recording the magneto-optical signal OMM. I do. Thereby, recording of RAM information is possible.
- the readout of the information recorded on the magneto-optical recording layer 4C is performed by irradiating the recording layer 4C with a weak laser beam so that the plane of polarization of the laser beam is as effective as possible in accordance with the magnetization direction of the recording layer 4C.
- the presence or absence of a signal is determined based on the strength of the polarization component of the reflected light.
- reading of the RAM information is possible.
- the reflected light is modulated by the phase pits PP constituting R0M, so that the ROM information can be read at the same time.
- R 0 M information is fixedly recorded by a phase pit PP formed by irregularities formed on a flat substrate, and RAM information is recorded by a phase pit PP. On the column, it is recorded as a RAM signal MO on the magneto-optical recording layer.
- ROM and RAM can be simultaneously reproduced by one optical pickup, and if magnetic field modulation type magneto-optical recording is adopted, writing to RAM and reproduction of ROM can be performed simultaneously. is there.
- FIG. 5 is a conceptual diagram showing a recording state of the optical disk medium of FIGS.
- a plurality of contents are recorded in advance in the recording medium 3 as ROM with phase pits.
- RAM information is recorded on the recording film including the magneto-optical recording layer formed on the physically non-rewritable uneven phase pit information.
- the RAM signal can be superimposed and recorded on the ROM signal, and the ROM and RAM can be played back simultaneously.
- FIG. 5 is a conceptual diagram when music overdubbing is performed on the ROM and RAM signal superimposed recording medium 3 described in FIGS.
- the recording area of the ROM section and the recording area of the RAM section are almost the same in the medium for each song, but in more detail, as shown in FIG.
- the magneto-optical recording data 9 is recorded with respect to the pit portion 8 for a reason described above while being shifted in a position direction shifted in time.
- the data structure of the recording area of the ROM (each content, for example, music) is configured as shown in FIG. That is, the recording area 8 is provided with two buffer areas 80 and 84 before and after the content overnight area 82.
- the buffer 80 is temporally forward with respect to the content 82
- the buffer 84 is backward with respect to the content 82.
- a recording operation start instruction 86 is recorded.
- recording can be started, and the recording state is entered upon receiving the recording start instruction 86 in the buffer 80 described above.
- timing signal 88 unique to each content is recorded in the buffer 80.
- the timing signal 88 is a signal that is output as a voice as a count for the performance. For example, “1", “2", “3”, “start” shout. Similarly, it may be displayed as a screen.
- the Q channel code used in CD when added to the RAM information, it can be used as a timing signal to control the timing of addition.
- a signal 89 for issuing a recording operation end command is recorded.
- This signal recording position is arranged at a temporally rearward position corresponding to the delay time shown in FIG. Receiving this recording operation end command 89, the recording operation on the magnetic head ends.
- FIG. 8 is an overall block diagram of an optical disk drive according to an embodiment of the present invention
- FIG. 9 is an explanatory diagram of each mode of the optical disk drive.
- a motor 18 rotates an optical information recording medium (MO disk) 3.
- MO disk optical information recording medium
- the optical pickup 5 has a magnetic head 35 and an optical head arranged so as to sandwich the optical information recording medium 3. 6
- the optical pickup 5 is moved by a track actuating mechanism (not shown) such as a ball screw feed mechanism, and can access any position in the radial direction of the optical information recording medium 3.
- a track actuating mechanism such as a ball screw feed mechanism, and can access any position in the radial direction of the optical information recording medium 3.
- an LD dryer 31 for driving the laser diode LD of the optical head
- a magnetic head driver 34 for driving the magnetic head 35 of the optical pickup 5.
- the main controller 15 is composed of an access servo controller and a controller.
- the access servo controller performs servo control of the track work, the motor drive, and the optical head focus drive 19, based on the output from the optical head.
- the controller operates the LD driver, '31, the magnetic head driver 34, and the access servo controller to record and reproduce information.
- the details of the optical head will be described with reference to FIG.
- the divergent light from the laser diode LD is converted into parallel light by the collimating lens 40, and is condensed to almost the diffraction limit on the optical information recording medium 3 by the objective lens 46 via the polarizing beam splitter 41. You.
- Part of the light incident on the polarizing beam splitter 41 is reflected by the beam splitter 41 and condensed on an APC (Auto Power Control) detector 43 via a condenser lens 42.
- APC Auto Power Control
- the light reflected from the optical information recording medium 3 again enters the beam splitter 41 via the objective lens 46.
- Part of the light that reenters the beam splitter 41 returns to the laser diode LD side, and the remaining light is reflected by the beam splitter 41 and enters the polarization beam splitter 56.
- Part of the light incident on the polarizing beam splitter 56 is condensed on a two-segment detector 47 via a two-beam Wollaston prism 44 and a condenser lens 45.
- the other part of the light incident on the polarization beam splitter 56 is collected on a servo detection quadrant detector 53 via a condenser lens 51 and a cylindrical lens 52.
- An FES (Focus Error Signal) reproducing circuit 54 uses the outputs A, B, C, and D of the photoelectrically converted four-segment photodetector 53 to generate a signal by the astigmatism method. Performs one-level error detection (FES). That is,
- the track error detection (TES) is performed by the push-pull TES generation circuit 55 from the output of the 4-split detector 53.
- the focus error signal (FES) and track error signal (TES) obtained by these calculations are used as position error signals in the focus direction and the track direction as the main controller 15 (specifically, an access servo controller). Is input to
- the polarization characteristic of the reflected laser light which changes depending on the direction of magnetization of magneto-optical recording on the optical information recording medium 3, is converted into light intensity. That is, in the two-beam wollaston 44, the light is separated into two beams whose polarization directions are orthogonal to each other by polarization detection, and is incident on a two-segment photodetector 47 through a condenser lens 45, where each is photoelectrically converted.
- the reflected light of the semiconductor laser diode LD incident on the APC photodetector 13 is photoelectrically converted into the main controller 15, and is input as a second ROM signal (ROM 2) through the amplifier 61.
- the main controller 15 includes the first ROM signal (ROM 1) output from the addition amplifier 29, the RAM signal (RAM) output from the differential amplifier 30, and the FES generation circuit.
- the focus error signal (FES) from 23 and the track error signal (TES) from the TES generation circuit 24 are input. Further, a recording data and a reading data are input and output to and from the main controller 15 through an interface circuit 68 with a data source 66.
- the main controller 15 generates a command signal to the LD driver 31 according to each mode.
- RAM magneto-optical
- data from the data source 66 is input to the main controller 15 through the interface 68.
- the main controller 15 supplies the input data to the magnetic head driver 34 when the magnetic field modulation recording method is used.
- the magnetic head driver 34 drives the magnetic head 35 and modulates the magnetic field according to the recording data.
- this input data is sent to the LD driver 31 to drive the laser diode LD with light modulation.
- Negative feedback control is performed on the light emission of the semiconductor laser diode LD so as to obtain power.
- the main controller 15 (specifically, the servo controller) responds to the detected focus error signal FES in response to a focus error signal.
- the main controller 15 (specifically, its servo controller) sends the detected tracker signal TES
- the truck drive is driven to seek and track the light beam.
- G + H (ROM 1) of the detector 47 or I (ROM 2) of the detector 43 is used for laser power adjustment.
- the laser power is controlled so that the G + H signal is constant. No ROM detection is performed during optical modulation recording.
- the recording / reproducing apparatus 1 shown in FIG. 8 and FIG. 9 has a configuration provided with an optical pickup for reading ROM and RAM information and a magnetic head for recording information on the RAM. With this configuration, the RAM signal can be reproduced while reproducing the ROM.
- the ROM1 signal can be detected from ROM2.
- the optical pickup can access any radial position of the recording medium by a seek mechanism using a ball screw feed mechanism. Therefore, it is possible to arbitrarily access the content recorded in the ROM and the content recorded in the RAM.
- FIG. 10 is a block diagram of the first embodiment of the main controller 15 of FIG.
- the main controller 15 receives the second ROM signal (ROM 2) through the amplifier 61 and the first ROM signal (ROM).
- the focus error signal (FES) from 4 and the track error signal (TES) from the TES generation circuit 55 are input.
- recording data converted into a digital audio signal is input to the data source 66 through an interface circuit 68 including an AD converter.
- the output of the differential amplifier 60 which is the RAM information when the ROM information and the RAM information are simultaneously reproduced, is synchronously detected by the synchronous detection circuit 157.
- the demodulator 158 performs demodulation corresponding to NRZI modulation and the like, and the decoded data is decoded by the decoder 156 and output as a digital audio RAM signal.
- ROM / RAM simultaneous playback uses ROM2 as the ROM signal.
- the ROM 2 signal is synchronously detected by the synchronous detection circuit 154, converted into a digital audio signal by the demodulator 155 and the decoder 156, and output as ROM data.
- the delay of the ROM signal is adjusted by the delay unit 170 as necessary.
- the user may arbitrarily adjust the delay time as described above.
- the RAM signal is similarly time-delayed by the delay unit 172 if necessary.
- the output ROM signal and RAM signal are converted into analog music signals by D / A converters 174 and 176, respectively, and then input to the volume and sound quality adjustment circuits 178 and 180, respectively. Is adjusted by the user according to the instruction. Thereafter, the music is synthesized by the synthesizer 182 and output as music to a speaker, a headphone 2A or the like.
- the music in the ROM and the music in the RAM are played back simultaneously and are synthesized and output.
- the time lag during recording is adjusted by the delay units 170 and 172.
- the ROM 1 signal is used as a reproduction ROM signal as shown in FIG.
- the switch SW2 is switched, the ROM1 signal is synchronously detected by the synchronization detection circuit 154 via the one-pass filter 160, converted into a digital audio signal by the demodulator 155 and the decoder 156, and output as ROM data. Is done.
- the ROM data is converted into an analog music signal by a DZA converter 174 via a delay unit 170, and then input to a volume and sound quality adjustment circuit 178. It is adjusted by the user. Thereafter, the music is synthesized by the synthesizer 182 and output as music to the speaker, the headphone 2A or the like.
- the input switch 162 is turned on by the multiplex recording switch 97 described above in order to record music and voice such as a guitar in the RAM while listening to the music.
- the start instruction of the buffer 80 in the ROM area 8 is detected by the start / stop detection circuit 161, and the gate 163 is opened.
- the analog music signal output from the guitar 2B or the piano 2D or the audio signal output from the microphone 2C is converted into a digital signal by the A / D converter 68, and is output by the encoder 151.
- the signal is converted into signals such as EFM and NRZI by the modulator 151, and the magnetic head controller 152 drives the magnetic head 35, and the RAM section of the recording medium 3
- the recording position relationship with the contents of the RAM becomes uniform.
- FIG. 11 is a block diagram of a second embodiment of the main controller 15 of FIG. 8, and FIG. 12 is an explanatory diagram thereof.
- FIG. 11 the same components as those shown in FIG. 10 are denoted by the same symbols.
- the main controller 15 sends the second ROM signal (ROM2) through the amplifier 61, the first ROM signal (R ⁇ M1) output from the addition amplifier 59, and the RAM signal (R ⁇ M1) output from the differential amplifier 60.
- RAM the second ROM signal
- R ⁇ M1 the first ROM signal
- R ⁇ M1 the RAM signal
- FES focus error signal
- TES track error signal
- the recording data converted into a digital audio signal is input to the data source 66 through an interface circuit 68 including an AD converter.
- the output of the differential amplifier 60 which is the RAM information at the time of simultaneously reproducing the ROM information and the RAM information, is synchronously detected by the synchronous detection circuit 157, and the demodulator 158 supports NRZ I modulation and the like. Demodulation is performed and the decoder 1
- the ROM signal uses R0M2.
- the ROM 2 signal is synchronously detected by the synchronous detection circuit 154, converted into a digital audio signal by the demodulator 155 and the decoder 156, and output as ROM data.
- Q channel information including time information is recorded in ROM 8 for content 82, and Q channel information including time information is similarly recorded in RAM 9.
- the Q-channel comparator 164 compares the Q-channel output including the time information added to the RAM signal with the Q-channel output recorded in advance in the ROM, and uses the delay units 170 and 172 as shown in FIG. As such, automatically adjust the playback output timing of ROM data 82 and RAM data.
- the ROM 1 signal is used as a reproduction ROM signal as shown in FIG.
- the switch SW2 is switched, the ROM1 signal is synchronously detected by the synchronous detection circuit 154 via the first pass filter 160, and is converted into a digital audio signal by the demodulator 155 and the decoder 156. Is output.
- the ROM data is converted to an analog music signal by a D / A converter 174 via a delay unit 170, and then input to a volume / sound quality adjustment circuit 178. The adjustment is made by the user. Thereafter, the signals are synthesized by the synthesizer 182 and output as music to a speaker, a headphone 2A, or the like.
- the input switch 162 is turned on by the above-described multiplex recording switch 97 in order to record music and voice such as music in the RAM while listening to this music.
- the start instruction of the buffer 80 in the ROM area 8 is detected by the start / stop detection circuit 161, and the gate 163 is opened.
- the analog music signal output from the guitar 2B and the piano 2D or the audio signal output from the microphone 2C is converted into a digital signal by the AZD converter 68.
- the encoder 151 performs error correction encoding and the like, and after adding Q channel information including time information according to a Q channel addition instruction as a timing signal of the ROM 1, the modulator 151 E
- the signals are converted into signals such as FM and NRZI, and are driven from the magnetic head controller 152 to the magnetic head 35, and are recorded in the RAM unit 9 of the recording medium 3.
- FIG. 13 is an explanatory diagram of another timing adjustment operation of the present invention.
- the Q channel comparator 164 replaces the recording timing delay time ⁇ T recorded in the buffer 80 of the ROM 8 with an extraction circuit.
- the recording timing delay time ⁇ recorded in the buffer 80 of the ROM 8 is extracted, and the delay amount of the delay unit 170 is adjusted according to the value.
- the playback output of the RAM performance data can be performed in time with the playback output of the ROM music. Therefore, the effects of the virtual session function and the multiplex recording function can be improved.
- an image can be used for the ROM, and voice or music can be used for the RAM.
- music or voice can be used for the ROM, and an image can be used for the HAM. Images can be used for both ROM and RAM.
- the magneto-optical recording film is not limited to a disk shape but may be a card shape or the like.
- RA The same applies when playing back only M. Industrial applicability
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CNB028295269A CN100414630C (zh) | 2002-08-30 | 2002-08-30 | 多重记录介质的记录/再生装置和记录/再生方法 |
PCT/JP2002/008776 WO2004023475A1 (ja) | 2002-08-30 | 2002-08-30 | 多重記録媒体、記録再生装置及び記録再生方法 |
AU2002328608A AU2002328608A1 (en) | 2002-08-30 | 2002-08-30 | Multiplex recording medium, recording/reproducing apparatus, and recording/reproducing method |
JP2004534041A JP3856808B2 (ja) | 2002-08-30 | 2002-08-30 | 多重記録媒体、記録再生装置及び記録再生方法 |
US11/047,111 US7423938B2 (en) | 2002-08-30 | 2005-01-31 | Apparatus and method for recording and reproducing ROM and RAM data into magneto-optical recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2002/008776 WO2004023475A1 (ja) | 2002-08-30 | 2002-08-30 | 多重記録媒体、記録再生装置及び記録再生方法 |
Related Child Applications (1)
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US11/047,111 Continuation US7423938B2 (en) | 2002-08-30 | 2005-01-31 | Apparatus and method for recording and reproducing ROM and RAM data into magneto-optical recording medium |
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WO2004023475A1 true WO2004023475A1 (ja) | 2004-03-18 |
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PCT/JP2002/008776 WO2004023475A1 (ja) | 2002-08-30 | 2002-08-30 | 多重記録媒体、記録再生装置及び記録再生方法 |
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US (1) | US7423938B2 (ja) |
JP (1) | JP3856808B2 (ja) |
CN (1) | CN100414630C (ja) |
AU (1) | AU2002328608A1 (ja) |
WO (1) | WO2004023475A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1688945A1 (en) * | 2003-11-28 | 2006-08-09 | Fujitsu Limited | Optical disc and recording/reproduction device |
JP4533854B2 (ja) * | 2006-03-06 | 2010-09-01 | 株式会社東芝 | 磁気記録再生装置、磁気記録方法、及び磁気記録再生方法 |
Citations (2)
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JP2000163755A (ja) * | 1998-11-27 | 2000-06-16 | Victor Co Of Japan Ltd | 記録媒体及び記録再生装置 |
JP2000311439A (ja) * | 2000-01-01 | 2000-11-07 | Sony Corp | 記録再生装置 |
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US5138598A (en) * | 1990-01-25 | 1992-08-11 | Sony Corporation | Optical disk having relatively wide ram tracks and relatively narrow rom tracks |
JPH06290546A (ja) | 1993-03-31 | 1994-10-18 | Sony Corp | ディスク状記録媒体、再生装置および記録装置 |
JPH0714233A (ja) | 1993-06-28 | 1995-01-17 | Ricoh Co Ltd | 光磁気記録媒体及びこれを用いた光磁気記録再生装置 |
JPH0765375A (ja) * | 1993-08-20 | 1995-03-10 | Fujitsu General Ltd | コンカレントrom/ram光ディスク装置 |
WO1996030907A1 (fr) * | 1995-03-30 | 1996-10-03 | Yoshikatsu Niwa | Dispositif et procede destines a commander un support d'enregistrement du type disque et support d'enregistrement du type disque |
US6215758B1 (en) * | 1996-10-04 | 2001-04-10 | Sony Corporation | Recording medium |
JP3885306B2 (ja) | 1997-09-11 | 2007-02-21 | 松下電器産業株式会社 | 電子楽器 |
JP3885307B2 (ja) | 1997-09-11 | 2007-02-21 | 松下電器産業株式会社 | 電子楽器 |
WO2001048753A1 (fr) * | 1999-12-28 | 2001-07-05 | Mitsubishi Chemical Corporation | Disque optique reinscriptible a changement de phase dote partiellement d'une region rom et procedes d'enregistrement et d'effacement de donnees pour disques optiques |
AU2002219606A1 (en) * | 2002-01-11 | 2003-07-30 | Fujitsu Limited | Optical information recording medium |
WO2003060897A1 (fr) * | 2002-01-11 | 2003-07-24 | Fujitsu Limited | Dispositif de stockage |
WO2004023470A1 (ja) * | 2002-08-30 | 2004-03-18 | Fujitsu Limited | 光磁気記録媒体及び光磁気記録装置 |
JP4130884B2 (ja) * | 2002-09-09 | 2008-08-06 | ソニー株式会社 | 再生装置、再生方法 |
US20050141402A1 (en) * | 2002-11-29 | 2005-06-30 | Fujitsu Limited | Multi-recording medium and storage medium |
WO2004055804A1 (ja) * | 2002-12-13 | 2004-07-01 | Fujitsu Limited | 光磁気記録媒体及び光磁気記憶装置 |
-
2002
- 2002-08-30 AU AU2002328608A patent/AU2002328608A1/en not_active Abandoned
- 2002-08-30 CN CNB028295269A patent/CN100414630C/zh not_active Expired - Fee Related
- 2002-08-30 WO PCT/JP2002/008776 patent/WO2004023475A1/ja active Application Filing
- 2002-08-30 JP JP2004534041A patent/JP3856808B2/ja not_active Expired - Fee Related
-
2005
- 2005-01-31 US US11/047,111 patent/US7423938B2/en not_active Expired - Fee Related
Patent Citations (2)
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JP2000163755A (ja) * | 1998-11-27 | 2000-06-16 | Victor Co Of Japan Ltd | 記録媒体及び記録再生装置 |
JP2000311439A (ja) * | 2000-01-01 | 2000-11-07 | Sony Corp | 記録再生装置 |
Also Published As
Publication number | Publication date |
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CN1659654A (zh) | 2005-08-24 |
US7423938B2 (en) | 2008-09-09 |
CN100414630C (zh) | 2008-08-27 |
US20050128887A1 (en) | 2005-06-16 |
AU2002328608A1 (en) | 2004-03-29 |
JP3856808B2 (ja) | 2006-12-13 |
JPWO2004023475A1 (ja) | 2006-01-05 |
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