JP2006244702A - Control method and controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reproduction sequence storage method and a reproduction sequence storage apparatus capable of automatically reproducing an optical disk in a predetermined sequence of musical pieces. <P>SOLUTION: The reproduction sequence storage apparatus comprises: an optical pickup 13 for reproducing information signals recorded in the optical disk 11; a memory 18 for storing reproduction sequence information corresponding to each disk-like recording medium for each disk-like recording medium; and a system controller 19 which discriminates the disk-like recording medium, collates the reproduced information signal with the reproduction sequence information stored in the memory 18, and controls to reproduce the collated information signal based on the reproduction sequence information, therefore, when replacing the recording medium with another recording medium, and in a case that a sequence for listening to musical pieces is predetermined for each recording medium, it is not necessary to perform the same operation each time, the operability can be improved and the recording medium can be reproduced in the predetermined order of musical pieces automatically. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control method and a control apparatus, and can be applied to, for example, a playback apparatus for music recorded on a compact disc (CD) or mini disc (MD) as a disk-shaped recording medium.

  Conventionally, for example, in a playback device for a mini-disc (MD) made of this type of disk-shaped recording medium, the following operation has been performed in order to play back music. First, the disc-shaped recording medium is mounted on the playback device. Next, by operating the operation unit, a song to be listened is selected from the song names displayed on the display unit by the operation unit, and this song is reproduced. Or, the order of the songs to be listened to was programmed, and the program was played back in the order of the songs according to the program. Such an operation is performed every time the recording medium is mounted on the reproducing apparatus. That is, when the recording medium is taken out from the reproducing apparatus and replaced with another recording medium, the above-described operation must be performed.

With respect to such a conventional music order playback apparatus, Patent Document 1 stores character information such as a disk name corresponding to each disk in a memory, and displays the information in a list so that the designation can be performed. A playback controller and a playback system are disclosed in which a playback control signal for a disc corresponding to a written character string is sent to the player side.
JP-A-8-50780

  However, in the conventional music order reproducing apparatus described above, when the recording medium is taken out from the reproducing apparatus and replaced with another recording medium, it is necessary to perform the above-described operation. When it is determined or when the listening order is always the same, it is necessary to perform the same operation every time, and there is a disadvantage that the operation is complicated. In addition, the apparatus described in Patent Document 1 has a disadvantage that it is not possible to automatically switch between the normal reproduction mode and the music order designation reproduction mode.

  The present invention has been made in consideration of the above points, and an object of the present invention is to propose a control method and a control apparatus capable of automatically reproducing an optical disc in a predetermined music order.

  In order to solve this problem, the control device of the present invention provides the disk-shaped recording medium generated from the information signal reproduced from the disk-shaped recording medium by the reproducing means for reproducing the information signal recorded on the disk-shaped recording medium. Reproduction order storage means for storing reproduction order information corresponding to each recording medium identification information for identifying the recording medium, recording medium identification information generated from an information signal reproduced by the reproduction means, and the reproduction order storage means A collating unit that collates the stored recording medium identification information; and a reproduction order storage unit that matches the recording medium identification information generated from the information signal reproduced by the reproducing unit as a result of the collation by the collating unit. When the stored recording medium identification information is detected, according to the reproduction order information corresponding to the recording medium identification information stored in the reproduction order storage means. , In which it said reproducing means and a control means for controlling to reproduce the information signal from said disc-shaped recording medium.

  Further, the control method of the present invention stores reproduction order information corresponding to each recording medium identification information for identifying the disk-shaped recording medium generated from the information signal reproduced from the disk-shaped recording medium, and A collation step for collating the recording medium identification information generated from the recorded information signal with the stored recording medium identification information, and the information signal reproduced from the disk-shaped recording medium as a result of the collation When the stored recording medium identification information that matches the recording medium identification information is detected, the information signal is reproduced from the disc-shaped recording medium according to the reproduction order information corresponding to the stored recording medium identification information. And a control step for controlling as described above.

  According to the control device of the present invention, the following operation is performed. The reproducing means acts to reproduce the information signal recorded on the disk-shaped recording medium by irradiating the pits formed on the disk-shaped recording medium with laser light and detecting the reflected light. The recording medium identifying means acts to identify the disk-shaped recording medium based on the identification number or identification information recorded on the disk-shaped recording medium.

  The reproduction order storage means is provided for each disk-shaped recording medium identified by the recording medium identification means for a disk-shaped recording medium in which the order of the songs to be listened to is determined in advance or a disk-shaped recording medium whose listening order is always the same. The reproduction order information corresponding to the recording medium is stored.

  The collation means acts to collate the information signal reproduced by the reproduction means and the information signal included in the reproduction order information stored in the reproduction order storage means. The control means acts so as to reproduce the information signal recorded on the disc-shaped recording medium by controlling the reproduction operation based on the reproduction order information to the reproduction means when the collation is possible by the collation means. To do.

According to the control device of the present invention, it is not necessary to perform the same operation when the recording medium is taken out from the device and replaced with another recording medium, and the order of the songs to be listened to for each recording medium is determined or heard. When the order is always the same, it is not necessary to perform the same operation every time, the operability can be improved, and the recording medium can be automatically reproduced in a predetermined music order.
Also, by collating the management information, the collation operation can be performed in a short time and with certainty, and the collation operation is more reliably performed by collating the beginning part or characteristic part of the song. There is an effect that can be.

Further, according to the control method of the present invention, when the recording medium is exchanged with another recording medium, it is not necessary to perform the same reproduction program processing, and the order of the songs to be listened to for each recording medium is determined or listened When the order is always the same, it is not necessary to perform the same reproduction program process every time, the reproduction process can be simplified, and the recording medium can be automatically reproduced in a predetermined music order.
Also, by collating the management information, the collation process can be performed in a short time and with certainty, and by comparing the beginning part or characteristic part of the song, the song order playback mode and the normal playback mode The effect is that it can be switched automatically.

Hereinafter, a reproduction order storage device according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 3 is a block diagram showing a configuration of the reproduction order storage device according to the embodiment of the present invention. A playback order storage device according to an embodiment of the present invention is applied to an optical disk drive, and stores playback song order information of a recording medium on which music that is always played back in the same song order is stored in advance. The recording medium to be automatically reproduced is identified, and the reproduction is performed in the order of the music stored automatically.
That is, in this reproduction order storage device, the spindle motor 12 rotates the optical disk 11 based on a drive pulse from a spindle driver (not shown) of the servo circuit 20.

  The optical pickup 13 emits a laser beam for disk reproduction, and an objective lens (not shown) condenses the reflected light of this mirror on the optical disk 11. The objective lens is independently moved in the focus direction (up and down direction) and the tracking direction (left and right direction) by a biaxial actuator using electromagnetic force.

  The optical pickup 13 is sequentially moved in the outer circumferential direction of the optical disk 11 in synchronization with the rotation of the optical disk 11 by a thread motor (not shown), and thereby the irradiation position by the laser beam is sequentially displaced in the outer circumferential direction of the optical disk 11.

  Thus, with the optical disk 11 being rotated, a laser beam is irradiated onto the spirally formed track by the movement of the mirror and the objective lens, the return light is detected by the photodiode, and the detection signal is sent to the RF circuit 14. To supply. The RF circuit 14 generates a reproduction RF signal from the detection signal and supplies it to a DSP (digital signal processor) circuit 15.

  The reproduction RF signal is regenerated by the DSP 15 by the clock regenerating PLL, and then the audio data and subcode data are demodulated in accordance with the CD or MD format. That is, the DSP circuit 15 detects an error correction code from audio data and subcode data, performs error correction processing, and then performs deinterleaving processing and EFM demodulation processing. The audio data is supplied to a DAC (digital / analog converter) 21, and the subcode data is supplied to a TOC (table ovo content) detection circuit 16.

  The TOC detection circuit 16 detects a TOC composed of Q channel data of the subcode. The TOC consists of a song number (number of movement, etc.), an index (a further subdivision of the movement), an elapsed time (minute, second, frame number) in the movement, an absolute time (minute, second, frame number), etc. . The TOC data and the subcode data are supplied to the command creation circuit 17 to create a command and output the command to the terminal 24.

  The DAC 21 converts digital audio data into an analog audio signal and supplies the analog audio signal to the output amplifier 22. The output amplifier 22 amplifies the audio signal to a level that can be output, and outputs the amplified audio signal to the terminal 23 as an audio output.

  Here, in this embodiment, in particular, the music order information is stored in the memory 18 in advance, and when the TOC detection circuit 16 detects the TOC information, the system controller 19 reads the music order information from the memory 18. Is read out, the TOC information and the song order information are compared and collated, the playback order is determined, and a control signal is supplied to the command creation circuit 17 so as to create a command for supporting the playback order.

  The system controller 19 is configured to supply control signals to the DSP circuit 15, the TOC circuit 16, the command creation circuit 17, the servo circuit 20, and the memory 18 to control the operation thereof.

  Next, the storage format of the music order information according to the present embodiment will be described with reference to FIG. This music order information is stored in the memory 18 shown in FIG. In FIG. 1, first, TOC information 1 for collating disc-shaped music recording media (hereinafter referred to as music media) is stored, and album name 2 is subsequently stored. Next, the program number ((1) to (4) to) 3 of the music order to be reproduced is stored following the album name 2, and finally the end code (0) 4 indicating the end of the music medium is stored. . Hereinafter, the TOC information 1-2 of the second music medium is stored, and the album name 2-2 is subsequently stored. Next, the program number ((1) to (4) to) 3-2 of the music order to be reproduced is stored following the album name 2-2, and finally an end code (0) 4 indicating the end of the music medium. -2 is stored, TOC information 1-N of the Nth (integer) music medium is stored, and the album name 2-N is subsequently stored. Next, the program number ((1) to (4) to) 3-N of the music order to be reproduced is stored following the album name 2-N, and finally indicates the end of the music medium and all information music order Two end codes (0) (0) 4 -N indicating the end of are stored.

  For example, when storing the music order information of two music media, the playback music order of the first medium is 5, 1, 3rd music, and the playback music order of the second media is 10, 11, 5, 6 The music order information stored in the memory 18 at the time of the music is as follows: “TOC information of the first music medium, first album name, program 5, program 1, program 3, end code 0, second music medium TOC information, second album name, program 10, program 11, program 5, program 6, end code 0, end code 0, ".

  The operation of the music order information reproducing apparatus of this embodiment configured as described above will be described with reference to the flowchart shown in FIG. The flowchart of FIG. 2 shows the process of collating the TOC information of the music medium to be reproduced with the song order information stored in the memory 18.

  In FIG. 2, the playback button is pressed in step S1. Specifically, the operator presses the reproduction button of the operation means, and the system controller 19 generates a reproduction command, and instructs the optical pickup 13 to irradiate the optical disk 1 with a laser beam for reproduction. The RF signal reproduced by the optical pickup 13 is supplied to the TOC detection circuit 16 through the RF circuit 14 and the DSP circuit 15.

  In step S2, the TOC is read from the music medium. Specifically, the TOC detection circuit 16 detects TOC information composed of Q channel data of the subcode detected from the RF signal.

  In step S3, 1 is put into P. Specifically, the count value of the counter of the system controller 19 is set to 1.

  In step S4, the music order information stored in the Pth is read. Specifically, the system controller 19 reads the music order information stored first from the memory 18.

  In step S5, it is determined whether or not the TOCs match. If they match, the process proceeds to step S6, and the songs are reproduced in the order of the song order information. If they do not match, the process proceeds to step S7. Specifically, the system controller 19 checks whether the TOC information detected by the TOC detection circuit 16 and the TOC information in the music order information read from the memory 18 match. Based on the order information, feed control of the optical pickup 13 is performed so that the reproduction is automatically performed in the designated music order.

  In step S7, it is determined whether or not two end codes appear in succession. If they appear, the process proceeds to step S8 and reproduction is performed in the normal reproduction mode. If not, the process proceeds to step S9 and the value of P is incremented. Return to step S4. Specifically, when the TOC information detected by the TOC detection circuit 16 and the TOC information in the song order information read from the memory 18 do not match (cannot be verified), the system controller 19 sets the end code to 2. Check if it has continued twice, and if you receive an end code twice in succession, perform normal playback in order from the first song assuming that there is no music medium to be played, and if the end code does not continue twice Since there is still music order information of another music medium, the count value of the counter of the system controller 19 is incremented to read the next music order information, and the determination and processing in steps S4 to S7 are repeated.

  In this way, when a music medium that is always listened to in the same music order is reproduced, there is no need to program each time, and the operability is improved. Further, since a program stored in advance is automatically selected simply by playing a music medium, operability is improved.

  Next, the recording medium identification operation will be described. The system controller 19 identifies this recording medium. For example, in the MD, when the operator has previously recorded the disk number of the optical disk 11 with a key (not shown), the system controller 19 identifies the recording medium from the disk number of the optical disk 11 to be reproduced. Then, as described above, the system controller 19 performs an operation of collating the song order information corresponding to the disc number with the TOC. In the case of MD, not only the disc number but also character input such as a track number, a song title and a player name can be performed. By displaying these disc number, track number, song title, player name, etc. on a display unit (not shown), the operator can also identify the disc. In the case of MD, a disc name and a track name can be displayed as TOC information.

  Furthermore, in the case of a CD, characters cannot be recorded on the disc itself. For example, when the operator inputs character information such as a disc title from a key in correspondence with the disc number, the system controller 19 This character information can be stored in the memory 18. In such a case, the system controller 19 can read the character information from the memory 18 and display it on the display unit in accordance with the disc number of the disc being reproduced.

  Further, the system controller 19 may hold disk identification data called a custom file in the memory 18 together with the disk number. This custom file is a disc-specific code generated by combining data such as the number of tracks and performance time as a part of the TOC information of the disc, and serves as identification data for each disc.

  The above-described reproduction order storage device according to the present embodiment includes an optical pickup 13 as reproduction means for reproducing an information signal recorded on an optical disk 11 as a disk-shaped recording medium, and recording medium identification means for identifying the disk-shaped recording medium. The system controller 19, the memory 18 as a reproduction order storage means for storing reproduction order information corresponding to each disk-shaped recording medium for each disk-shaped recording medium identified by the recording medium identification means, and reproduction by the reproduction means. The system controller 19 as collating means for collating the received information signal with the reproduction order information stored in the reproduction order storage means, and controlling the information signal collated by the collating means to be reproduced based on the reproduction order information. Since the system controller 19 as a control means is provided, the recording medium is taken out of the apparatus and another recording medium It is not necessary to perform the same operation when switching, and it is not necessary to perform the same operation every time when the order of the songs to be listened for each recording medium is the same or when the listening order is always the same, improving operability The recording medium can be automatically reproduced in a predetermined music order.

  In the above-described playback order storage device of the present embodiment, the playback information is TOC information 1, 1-2, 1-N as management information, and the playback order information is TOC information 1 as management information. , 1-2 and 1-N are included, the collation operation can be performed in a short time and reliably by collating the management information.

  In the playback order storage device of the present embodiment described above, in the above description, the playback information is information of a predetermined range, and the playback order information includes information of the predetermined range. By collating a certain part, the certainty of the collation operation can be further improved.

  In addition, the reproduction order storage method of the present embodiment described above is identified by a reproduction step of reproducing an information signal recorded on the optical disk 11 as a disk-shaped recording medium, an identification step of identifying the disk-shaped recording medium, A collation step for collating the reproduction order information stored corresponding to each disc-shaped recording medium and the reproduced information signal for each disc-shaped recording medium, and reproducing the collated information signal based on the reproduction order information Control steps for controlling the recording medium, it is not necessary to perform the same reproduction program processing when the recording medium is replaced with another recording medium, and the order of the songs to be listened to for each recording medium is determined, When the listening order is always the same, it is not necessary to perform the same playback program processing every time, the playback processing can be simplified, and the recording medium is automatically played back in a predetermined song order. Door can be.

  In the above-described reproduction order storage method according to the present embodiment, in the above description, the collating step includes TOC information 1, 1-2, 1-N as reproduction information management information and reproduction order information management information. Since the TOC information 1, 1-2, and 1-N are collated, the collation processing can be performed in a short time and reliably by collating the management information.

  In addition, in the above-described reproduction order storage method of the present embodiment, the TOC information 1, 1-2, 1-N as management information of reproduction information and the TOC information 1, as management information of reproduction order information are described above. When 1-2 and 1-N do not collate, playback is performed in the normal order, so that it is possible to automatically switch between the tune order playback mode and the normal playback mode.

It is a figure which shows the storage format of the music order information of embodiment of this invention. It is a flowchart which shows the operation | movement which selects the music order information of embodiment of this invention. It is a block diagram which shows the structure of the reproduction | regeneration order memory | storage device of embodiment of this invention.

Explanation of symbols

  1, 1-2, 1-N ... TOC information, 2, 2-2, 2-N ... album name, 3, 3-2, 3-N ... programs (1), (2), (3 ), (4),... 4 ... End code (0), 5 ... End code (0), End code (0), 11 ... Optical disk, 12 ... Spindle motor, 13 ... Optical pickup , 14... RF circuit, 15... DSP circuit, 16... TOC detection circuit, 17... Command creation circuit, 18... Memory (music order information), 19. …… DAC, 22 …… Output amplifier, 23 …… Terminal, 24 …… Terminal

Claims (8)

A reproduction order corresponding to each recording medium identification information for identifying the disk-shaped recording medium generated from the information signal reproduced from the disk-shaped recording medium by reproducing means for reproducing the information signal recorded on the disk-shaped recording medium Reproduction order storage means for storing information;
Collation means for collating the recording medium identification information generated from the information signal reproduced by the reproduction means and the recording medium identification information stored in the reproduction order storage means;
When the recording medium identification information stored in the reproduction order storage means matching the recording medium identification information generated from the information signal reproduced by the reproduction means is detected as a result of the collation by the collation means, the reproduction is performed. Control means for controlling the reproducing means to reproduce an information signal from the disc-shaped recording medium in accordance with reproduction order information corresponding to the recording medium identification information stored in the order storage means;
A control device comprising: The control device according to claim 1,
When the reproduction order information corresponding to each TOC information generated from the TOC reproduced from the disk-shaped recording medium is stored in the reproduction order storage means,
When the TOC information stored in the reproduction order storage unit coincides with the TOC information generated from the TOC reproduced by the reproduction unit as a result of the collation by the collation unit, the control unit reproduces the reproduction A control device, characterized in that the playback means controls to play back a program from the disk-shaped recording medium in a playback order represented by playback order information corresponding to TOC information stored in the order storage means. The control device according to claim 1,
The control apparatus characterized in that the reproduction order storage means can store a characteristic portion of an information signal reproduced from the disc-shaped recording medium as the recording medium identification information. The control device according to claim 1,
In accordance with the reproduction order information, the control means sends a program corresponding to a second program number larger than the first program number from the disc-shaped recording medium to the first program number. A control device capable of being controlled so as to be played back prior to a program corresponding to. Reproduction order information corresponding to each recording medium identification information for identifying the disk-shaped recording medium generated from the information signal reproduced from the disk-shaped recording medium is stored, and the recording generated from the reproduced information signal A collation step of collating the medium identification information with the stored recording medium identification information;
When the stored recording medium identification information that matches the recording medium identification information generated from the information signal reproduced from the disc-shaped recording medium is detected as a result of the verification, the stored recording medium identification information is included in the stored recording medium identification information. A control step for controlling to reproduce an information signal from the disc-shaped recording medium according to corresponding reproduction order information;
A control method comprising: The control method according to claim 5, wherein
When reproduction order information corresponding to each TOC information generated from the TOC reproduced from the disk-shaped recording medium is stored,
When the TOC information stored in the reproduction order storage unit that matches the TOC information generated from the reproduced TOC is detected as a result of the collation, the control step stores the TOC information in the stored TOC information. A control method comprising: controlling a program to be reproduced from the disk-shaped recording medium in a reproduction order represented by corresponding reproduction order information. The control method according to claim 6, wherein
As a result of the collation, when the stored recording medium identification information that matches the recording medium identification information generated from the information signal reproduced from the disk-shaped recording medium is not detected, the information signal from the disk-shaped recording medium is detected. A control method characterized in that the images are reproduced in a normal order. The control method according to claim 5, wherein
In the control step, a program corresponding to a second program number larger than the first program number is transferred from the disc-shaped recording medium according to the reproduction order information. A control method characterized in that the control can be performed so that playback is performed in advance.

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