JP2007059023A - Information recording/reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording/reproducing device capable of shortening time required for a recording and/or reproducing operation by discriminating the type of a disk by a simple method. <P>SOLUTION: In a disk tray 70, tray positions DA to DC preliminarily associated with disk types are set. The type of the optical disk placed on any one of the tray positions is discriminated on the basis of conveying time for conveying the optical disk from one of the tray positions DA to DC to a chucking position by a moving bar. Thus, a controller determines the type of the disk on the basis of the conveying time without rotating the optical disk by a spindle motor nor reading data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information recording / reproducing apparatus that records and / or reproduces information on, for example, an optical disc such as a CD (Compact Disc) or a DVD (Digital Versatile Disc).

  2. Description of the Related Art Conventionally, there is an information recording / reproducing apparatus that records and / or reproduces information with an optical head called an optical pickup with respect to an optical disc in which information recording tracks are formed concentrically or spirally such as a CD or DVD. The optical pickup is configured to collect and irradiate a light beam of a semiconductor laser or the like on an optical disk with an objective lens, and receive reflected light of the light irradiated on the optical disk and output an electrical signal corresponding to the received light. It moves in the radial direction of the optical disk.

  An information recording / reproducing apparatus records information on an optical disk by moving the optical pickup to a predetermined position on the optical disk and condensing and irradiating light from the optical pickup onto a recording track of the optical disk while rotating the optical disk. And / or playback.

  When reproducing information from the optical disc, first, focus on (focus pull-in) is performed so that the condensing point of the light emitted from the optical pickup is located on the optical disc surface. Turn on the track so that it is positioned (track pull-in). These focus-on and track-on are performed by moving the objective lens in a direction perpendicular to the optical disk surface and a direction perpendicular to the recording track in accordance with an electrical signal output from the optical pickup. Then, pits formed on the optical disc are detected based on an electrical signal output from the optical pickup in a state where the focus is on and the track is on, thereby reading information from the optical disc and reproducing the information. Information is recorded on the optical disk by forming pits on a recording track of the optical disk with light focused and irradiated on the optical disk from the optical pickup.

  On the other hand, various types of optical discs have been developed in recent years, and there are various types depending on the use, such as a read-only type, a write-once type, or a rewritable type. Further, there is a difference in wavelength of a light source used for recording and reproduction between CD and DVD.

  Therefore, in an information recording / reproducing apparatus, it is important to discriminate what kind of medium is inserted.

  Along with this, it takes a lot of time for disc discrimination and the like, and there is a problem that it becomes difficult to immediately execute the recording and / or reproducing operation.

Japanese Patent Application Laid-Open No. 2005-4951 discloses a method for shortening the time required for recording and / or reproducing operation by transporting each corresponding tray position according to the type of disk.
JP 2005-4951 A

  However, Patent Document 1 discloses a configuration in which a transport mechanism for transporting each of the tray positions is provided, but the internal structure is complicated and the cost may be increased.

  An object of the present invention is to provide an information recording / reproducing apparatus capable of discriminating the type of a disk and reducing the time required for recording and / or reproducing operation by a simple method.

  An information recording / reproducing apparatus according to the present invention is placed on any one of a disc tray having a plurality of tray positions provided corresponding to a plurality of disc types and a plurality of tray positions of the disc tray. Based on a disk transport mechanism for transporting the disk to the chucking position, and a transport time during which the disk placed on any one of the plurality of tray positions of the disk tray is transported to the chucking position by the disk transport mechanism. And a control circuit for discriminating the type of the disc and executing a pickup corresponding to the disc type based on the discrimination result. The disk transport mechanism includes a transport bar that contacts the disk and transports the disk, and a detector that detects contact with the disk, and the control circuit measures the disk transport time based on the detection result of the detector. Including measuring instruments.

  An information recording / reproducing apparatus according to the present invention is placed on any one of a disc tray having a plurality of tray positions provided corresponding to a plurality of disc types and a plurality of tray positions of the disc tray. Based on a disk transport mechanism for transporting the disk to the chucking position, and a transport time during which the disk placed on any one of the plurality of tray positions of the disk tray is transported to the chucking position by the disk transport mechanism. And a control circuit for discriminating the type of the disc and executing a pickup corresponding to the disc type based on the discrimination result.

  Preferably, the disk transport mechanism includes a transport bar that contacts the disk and transports the disk, and a detector that detects contact with the disk, and the control circuit transports the disk based on a detection result of the detector. Includes instruments that measure time.

  The information recording / reproducing apparatus according to the present invention discriminates the type of the disc based on the transport time for transporting the disc to the chucking position. It is possible to shorten the recording / playback time preparation period.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 1 is a schematic block diagram of an information recording / reproducing apparatus according to an embodiment of the present invention.
Referring to FIG. 1, an information recording / reproducing apparatus 1 records and / or reproduces information such as music and video on an optical disc on which concentric or spiral information recording tracks such as CDs and DVDs are formed. Do.

  The information recording / reproducing apparatus 1 includes a disk insertion detecting unit 2, a spindle motor 3, an optical pickup 4, a moving motor 5, a laser driving unit 6, a signal processing unit 7, a data slice signal generating unit 8, and a servo. And a control unit (focusing control unit, tracking control unit) 9. Further, the information recording / reproducing apparatus 1 includes a video / audio signal input / output unit 10, a remote controller 11, a remote control receiver 12, a display unit 13, a control unit 20 for controlling each unit, and a disc tray 70. And a disk transport unit 75.

  The disc insertion detection unit 2 detects that an optical disc has been inserted from a disc insertion unit (not shown) and placed on the disc tray 70, and inputs the signal to the control unit 20. The inserted optical disk is transported to a predetermined chucking position by the disk transport section 75 and mounted on the spindle motor 3. The spindle motor 3 is driven to rotate in accordance with an instruction from the control unit 20 and controls the mounted optical disk to rotate at a predetermined speed.

  The optical pickup 4 irradiates the optical disc with light for recording and / or reproducing information, receives reflected light from the optical disc, converts it into an electrical signal, and outputs it to the electrical signal. Based on the instruction, it is moved in the radial direction on the optical disk by the moving motor 5 comprising a linear motor.

  The optical pickup 4 collects and irradiates the light emitted from the semiconductor laser 41 onto the optical disc via the collimating lens 42, the beam splitter 43 and the objective lens 44. The reflected light from the optical disk is received by the photodetector 46 through the objective lens 44, the beam splitter 43, and the condenser lens 45.

  The light emission of the semiconductor laser 41 is controlled by the laser driving unit 6 that operates in response to an instruction from the control unit 20. The light detector 46 includes a divided photodiode that divides the light receiving surface into a plurality of regions and outputs an electric signal corresponding to the light reception intensity for each light receiving surface. The output signal from the light detector 46 is a signal process. Input to part 7.

  The objective lens 44 is held by a lens holder 47, and the lens holder 47 is provided with a focusing coil 48 and a tracking coil 49. The focusing coil 48 moves the objective lens 44 in a direction perpendicular to the disk surface of the optical disk by a magnetic action with a magnet (not shown). Similarly, the tracking coil 49 moves the objective lens 44 in a direction perpendicular to the recording track of the optical disk parallel to the disk surface of the optical disk.

  The signal processing unit 7 generates an RF signal (reflection intensity) based on the output signal from the light detector 46 and outputs it to the data slice signal generation unit 8. The data slice signal generation unit 8 generates a data slice signal obtained by binarizing the RF signal and inputs the data slice signal to the control unit 20. The control unit 20 detects pits formed on the optical disk based on the data slice signal.

  Further, the signal processing unit 7 generates a focus error signal and a track error signal based on the output signal from the light detector 46 and outputs the focus error signal and the track error signal to the servo control unit 9. The focus error signal is a signal corresponding to the amount of deviation of the condensing point of light irradiated to the optical disc through the objective lens 44 from the optical disc surface, and the track error signal is the amount of deviation of the condensing point from the recording track. Corresponding signal.

  The servo controller 9 controls the current supply to the focusing coil 48 and the tracking coil 49 on the basis of the focus error signal and the track error signal to move the objective lens 44, whereby the condensing point is the disk of the optical disk. Servo control is performed so as to be positioned on the surface and on the recording track.

  The video / audio signal input / output unit 10 is connected to an external device such as a display, a speaker, or a television receiver (not shown). The video / audio signal output from the optical disc, the video signal / audio from the external device, and the like. A signal is input.

  The remote controller 11 is for operating various operations of the information recording / reproducing apparatus 1 and includes operation keys (all not shown) for operating various operations. The remote controller 11 sends a corresponding signal as an infrared signal in response to the operation of these keys. The remote control receiving unit 12 receives an infrared signal sent from the remote control 11 and outputs the signal to the control unit 20. The display unit 13 is provided on the front panel of the main body of the information recording / reproducing apparatus 1 and displays the contents operated by the remote controller 11 and the operation status of the information recording / reproducing apparatus 1.

  Here, recording / reproduction of information with respect to the optical disc will be described. First, information is reproduced from the optical disk by irradiating the optical disk with light from the semiconductor laser 41 while rotating the optical disk at a predetermined speed by the spindle motor 3 and receiving the reflected light by the photodetector 46. Then, the servo control unit 9 controls the current supply to the focusing coil 48 based on the focus error signal from the signal processing unit 7 to move the objective lens 44, and the condensing point of the light from the semiconductor laser 41 is the optical disc. Focus on (focus pull-in) so that it is on the surface. Further, the servo control unit 9 controls the current supply to the tracking coil 49 based on the track error signal from the signal processing unit 7 to move the objective lens 44 so that the light condensing point of the light from the semiconductor laser 41 is desired. The track is turned on (track pull-in) so as to be positioned on the recording track.

  After the focus on and track on, the servo controller 9 controls the current supply to the focusing coil 48 and the tracking coil 49 based on the focus error signal and the track error signal to maintain the focus on state and the track on state. Thus, focusing servo control and tracking servo control are performed.

  Then, the RF signal output from the signal processing unit 7 in this servo state is input to the data slice signal generation unit 8, and the data slice signal generated by binarizing the RF signal by the data slice signal generation unit 8 is the control unit. 20 is input. The control unit 20 detects the presence or absence of pits formed on the optical disk based on the data slice signal, reads the information recorded on the optical disk, reproduces the read information as a video signal or an audio signal, Output from the audio signal input / output unit 10 to an external device.

  Similarly, recording of information on the optical disk is performed by forming pits on the optical disk with light from the semiconductor laser 41 in a focusing and tracking servo state. At this time, the video signal and the audio signal input from the video / audio signal input / output unit 10 are encoded by the control unit 20, and the semiconductor laser 41 is controlled according to the encoded data under the control of the control unit 20. Light emission is controlled. Accordingly, pits corresponding to the encoded data are formed on the recording track of the optical disc, and video and audio information is recorded. Pits can be formed by causing the semiconductor laser 41 to emit light at a higher output than when reading information.

  The information recording / reproducing apparatus 1 configured as described above reproduces information from the optical disk, records information on the optical disk, and the like by operating the remote controller 11 under the control of the control unit 20. In addition, when the disc insertion detection unit 2 detects that the optical disc has been inserted and placed on the disc tray 70 under the control of the control unit 20, the control unit 20 controls the information recording / reproducing apparatus 1 to transfer the disc. The unit 75 is instructed to transport the optical disc. Specifically, the disk transport unit 75 performs a transport operation for transporting the optical disk placed on the disk tray 70 to a predetermined chucking position. Thereafter, an initial operation of reading information recorded on the innermost circumference side of the optical disk is performed. In the embodiment of the present invention, the type and recording content of the inserted optical disk are determined based on the information read in the above transport operation and initial operation, and the subsequent operations such as recording and reproducing information are performed. To control.

  The control unit 20 is provided with a storage area (not shown), and various control programs for instructing execution of various transport operations or initial operations such as a control program for executing a spin-up operation. It is assumed that the control program is stored.

  Hereinafter, disc tray 70 and disc transport portion 75 according to the embodiment of the present invention will be described. In the embodiment of the present invention, a plurality of tray positions to be placed on the disc tray 70 according to the type of the optical disc are provided.

FIG. 2 is a diagram illustrating a disk tray 70 according to the embodiment of the present invention.
Here, a view of the disc tray 70 as viewed from above is shown.

  The disc tray 70 according to the embodiment of the present invention is provided with a plurality of tray positions as an example. In this example, first to third tray positions DA to DC are provided. Note that the first tray position DA is also a chucking position for rotating the optical disk by the spindle motor 3. For example, it is assumed that the tray position DA corresponds to a writable DVD, for example, a write-once DVD-R or a rewritable DVD-RW. The tray position DB corresponds to a read-only DVD, for example, a DVD-ROM as an example. The tray position DC is assumed to correspond to the CD.

  2 shows a moving bar 85 for transporting the optical disk placed on the disk tray 70, and a bar expanding / contracting portion 87 for controlling expansion / contraction of the moving bar 85.

  In the present embodiment, it is assumed that the optical disk is pushed to a predetermined chucking position by the moving bar 85 and conveyed. The disc discrimination is performed according to the optical disc transport period by the moving bar 85 from the tray position determined in advance according to the type to the chucking position.

FIG. 3 is a diagram illustrating the configuration of the disc tray 70 and the disc transport unit 75.
Referring to FIG. 3, first to third tray positions DA to DC are shown on the disk tray 70, and the tray positions are arranged so that the optical disks can be loaded with their positions shifted on the stairs. Is provided.

  The disk transport unit 75 includes a detector (switch) 80, a spring 88, a bar extendable unit 87, and a moving bar 85.

  Here, the detector (switch) 80 is a push switch and is driven by pushing a switch 86. The switch 86 of the detector 80 is arranged so as to be in a straight line with the bar telescopic part 87 via a spring 88. Further, the bar expansion / contraction part 87 extends and contracts the moving bar 85 to come into contact with the optical disc and convey it to the chucking position.

  Here, the conveyance of the optical disk will be described. For example, when the bar extendable portion 87 operates to move the moving bar 85, it comes into contact with the optical disk placed at the tray position. Here, when the optical disk is placed at the tray position DC, the movement of the moving bar 85 makes contact with the optical disk at the tray position DC where the optical disk is placed. Then, the optical disk is pushed by the bar expansion / contraction part 87. At this time, the switch 86 is pushed via the spring 88 by the repulsive force against the stress to the optical disk. As a result, the detector (switch) 80 is turned on. When the detector 80 is turned on, the timer 89 in the electrically connected control unit 20 operates to count the optical disk transport period.

  Similarly, even when an optical disk is placed on the tray position DB, the moving bar 85 contacts the optical disk at the tray position DB, and the detector (switch) 80 is turned on. Then, the moving bar 85 pushes the optical disk to the tray position DA by the bar extendable part 87 and conveys it to the chucking position. The bar expansion / contraction part 87 contracts the moving bar after pushing the optical disk to the tray position DA. As a result, the optical disk and the moving bar are brought into contact with each other, so that the switch 86 returns to the original state due to the spring stress. That is, the detector (switch) 80 is turned off, and the timer 89 stops counting the conveyance period. Therefore, the timer 89 can count the transport period when the optical disk is transported from the tray position to the chucking position.

  For example, when an optical disk is placed at the tray position DC, the transport period is the first period. In addition, when an optical disc is placed on the tray position DB, the transport period is the second period. Further, when the optical disc is placed at the tray position DA, the transport period is zero. Here, since the tray position DA and the chucking position are the same position, the transport period is 0. However, when the tray position DA is slightly deviated from the chucking position, the transport period is the third time. It becomes a period. In the following description, when the optical disk is placed at the tray position DA, the conveyance period is described as the third period.

  FIG. 4 is a flowchart illustrating an operation of the information recording / reproducing apparatus according to the embodiment of the present invention.

  Referring to FIG. 4, first, the information recording / reproducing apparatus is powered on, and the apparatus is put into operation (step S0). Next, the optical disk is placed on the disk tray 70 (step S1). When the disc insertion detection unit 2 determines that the optical disc is placed on the disc tray 70, the disc insertion detection unit 2 detects this and outputs a detection signal to the control unit 2. The control unit 20 controls the disc transport unit 75 based on the detection signal from the disc insertion detection unit 2. Specifically, the disk transport unit 75 transports the optical disk to the chucking position by the bar extendable unit 87 as described above under the instruction from the control unit 20.

  Then, the optical disc transported to the chucking position is rotated by the spindle motor 3 to disc discriminate (step S2), the type of the inserted optical disc and the recording content are judged, and the preparation operation is completed. A reproduction operation is executed (step S3).

  Next, disk discrimination according to step S2 of FIG. 4 will be described using the flowchart of FIG.

  First, when disc discrimination is executed (step S10), it is judged whether or not the optical disc transport period is the first period (step S11). If it is determined in step S1 that it is the first period, it is determined that the optical disc is a CD (step S12). Then, a CD spin-up process is executed (step S13). For example, CD and DVD use different laser light wavelengths of 780 nm and 650 nm, respectively. Therefore, here, since it is determined that the optical disk is a CD, is the standard data written on the innermost circumference of the CD read using the wavelength 780 nm of the laser beam for CD and reading from the CD succeeded? It is determined whether or not (step S14).

  If the reading is successful in step S14, the CD recording / playback preparation is completed (step S15). Then, the recording / reproducing operation corresponding to the medium is executed in step S3 of FIG. Note that the spin-up process for the CD executed in the above step S13 is a characteristic of the media, that is, a read-only CD-ROM, a writable but write-once CD-R, or a rewritable CD-RW. It is also assumed that the above determination is also performed.

  On the other hand, if the reading fails, there is a possibility that the medium is not a CD, so media determination is executed (step S16). Then, a spin-up process is executed (step S17). Then, it is determined whether or not the reading is successful (step S29). Here, since the type of the medium cannot be specified, it is determined whether it is a CD or a DVD, and whether it is a write-once type or a rewritable type, and the medium is specified and read out. Various spin-up processes are executed until successful. After the medium is specified, the recording / playback preparation according to the type and characteristics of the medium is completed (step S30). Therefore, for example, even when the user mistakenly selects the tray position corresponding to the medium, the medium can be specified and the recording / reproduction preparation can be completed by executing the normal spin-up process.

Here, a conventional spin-up process, that is, a normal spin-up process will be described.
FIG. 6 is a flowchart for explaining a conventional spin-up process.

  Referring to FIG. 6, in a normal spin-up process, a disk is first set (step S30). Various settings such as device parameters are then made (various adjustments 1) (step S31). Next, for example, a measurement preparation for executing a discriminating operation for specifying the disc type is made (measurement preparation for disc type discrimination) (step S32). Then, the signal obtained from the disc is measured to discriminate the type of the media (disc type discriminating measurement, discrimination) (step S33). That is, it is discriminated whether the type of the medium, that is, the disc is CD or DVD.

  Next, the setting of the device is reflected in one of the setting values based on the result of determining the type of media (step S34). At this time, various settings such as device parameters are also made (various adjustments 2) (step S35).

  As described above, it is necessary to determine the characteristics of the media such as read-only or writable but write-once or rewritable.

  Therefore, next, a measurement preparation for executing a discriminating operation for specifying the characteristics of the disc is made (measurement preparation for disc characteristic discrimination) (step S36). Next, the signal obtained from the disk is measured to determine the characteristic of the medium (disc characteristic determination measurement, determination) (step S37). That is, it is determined whether the characteristic of the medium, that is, read-only ROM, writable but write-once R, or rewritable RW. Next, the device settings are reflected in accordance with the media characteristics based on the result of determining the media characteristics (step S38). At this time, various settings such as device parameters are also made (various adjustments 3) (step S39). This completes the disk mount accompanying the disk spin-up process (step S40).

  Therefore, as described above, when the spin-up process for CD is executed in step S13 in FIG. 5, it is assumed that the medium is a CD, and only the characteristics of the medium are determined correspondingly. The time required for determination can be shortened. That is, in the above-described spin-up process for CD, the disc type discrimination measurement preparation (step S32), disc type discrimination measurement, discrimination (step S33) and discrimination results described in FIG. 6 are reflected in the settings (steps). S34) There is no need, and by deleting such a step, high-speed spin-up processing, that is, disc discrimination can be performed.

  Referring again to FIG. 5, if it is determined in step S11 that the optical disk transport period is not the first period, it is next determined whether or not the optical disk transport period is the second period. (Step S18).

  If it is determined in step S18 that the optical disk transport period is the second period, it is determined that the optical disk is a read-only DVD-ROM (step S19). Then, a spin-up process for DVD-ROM is executed (step S20). Then, the standard data written in the innermost periphery of the DVD-ROM is read to check whether it is a DVD-ROM. That is, it is determined whether reading from the DVD-ROM is successful (step S21). If the reading is successful, the DVD-ROM playback preparation is completed (step S22). Then, the reproduction operation corresponding to the medium is executed in step S3 of FIG. Here, as the spin-up process for the DVD-ROM, since it is already assumed that the type and characteristics of the medium are the DVD-ROM, it is only necessary to perform various adjustments such as servo control and parameter adjustment. It is not necessary to execute the disc type and characteristic discriminating processing as described in the above, and it is possible to execute a high-speed spin-up process by deleting such steps.

  On the other hand, if the reading fails, the medium may not be a DVD-ROM, so the process proceeds to step S16, and the medium determination is executed. Then, the same processing as described above is executed.

  If it is determined in step S18 that the optical disk transport period is not the second period, it is then determined whether or not the optical disk transport period is the third period (step S18).

  If it is determined in step S23 that the optical disk transport period is the third period, it is determined that the optical disk is a writable disk DVD-R or DVD-RW (step S19). Then, a spin-up process for DVD-R or DVD-RW is executed (step S20). Then, either DVD-R or DVD-RW is specified, the standard data written in the innermost circumference of DVD-R or DVD-RW is read, and whether the specified medium is an appropriate medium Confirm. That is, it is determined whether reading from the specified DVD-R or DVD-RW is successful (step S21). If the reading is successful, the DVD-R or DVD-RW recording / reproduction preparation is completed (step S22). Then, the recording / reproducing operation corresponding to the medium is executed in step S3 of FIG. Here, as a spin-up process for DVD-R or DVD-RW, it is already assumed that the type and characteristics of the medium are DVD-R or DVD-RW, so various adjustments such as servo control and parameter adjustment, etc. In addition to this, it is only necessary to determine whether the disk is one of them. That is, it is not necessary to execute the disc type discrimination processing as described with reference to FIG. Processing is possible.

  On the other hand, if the reading fails, there is a possibility that the medium is not a DVD-R or a DVD-RW, so the process proceeds to step S16, and media determination is executed. Then, the same processing as described above is executed.

  If it is determined in step S23 that the transport period is not the third period, it is determined that no media is loaded, and an error determination is made (step S28).

  In the present embodiment, in the disc tray 70, a tray position previously associated with the type of the disc is provided, and the tray is placed in any tray position depending on the conveyance period for conveying the optical disc to the chucking position. It is determined whether it is an optical disc. That is, the control unit 20 can determine the type based on the transport period without rotating the optical disk by the spindle motor 3 and executing the data reading.

  As described above, the wavelength of the laser also varies depending on the type of media. In the case of normal media determination, it is determined whether the media can be read by the laser for CD or the laser for DVD, and Since it is necessary to determine whether it is a read-only type, a write-once type, a rewritable type, etc., there is a high possibility that the determination process will take a considerable amount of time.

  In the present embodiment, the time required for this determination operation can be shortened by the user selecting at the tray position of the disc tray 70 whether or not it is a CD or a DVD. In addition, the type of format differs depending on whether it is read-only, write-once or rewrite as the characteristics of the media, and the data structure is also different. Therefore, if the format type is determined in advance, the determination operation can be executed at high speed. .

  In this example, in the case of a CD, a configuration in which only one tray position is provided has been described as an example. However, in the case of a CD, there are various types such as a write-once type or a rewritable type. It is also possible to shorten the determination operation by providing a plurality of tray positions for each media characteristic in advance.

  Here, the configuration in which three tray positions are provided has been described as an example, but it is also possible to shorten the determination operation for specifying a medium by providing a plurality of tray positions according to the type and characteristics of the media. It is.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a schematic block diagram of an information recording / reproducing apparatus according to an embodiment of the present invention. It is a figure explaining disc tray 70 according to an embodiment of the invention. FIG. 5 is a diagram illustrating the configuration of a disk tray 70 and a disk transport unit 75. It is a flowchart figure which shows the operation | movement of the information recording / reproducing apparatus according to embodiment of this invention. FIG. 5 is a flowchart for explaining disc discrimination according to step S2 of FIG. It is a flowchart explaining the conventional spin-up process.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Information recording / reproducing apparatus, 2 Disc insertion detection part, 3 Spindle motor, 4 Optical pick-up, 5 Moving motor, 6 Laser drive part, 7 Signal processing part, 8 Data slice signal generation part, 9 Servo control part, 10 Image | video / audio Signal input / output unit, 11 remote control, 12 remote control receiving unit, 13 display unit, 20 control unit, 70 disc tray, 75 disc transport unit, 80 detector, 85 moving bar, 86 switch, 87 bar extendable unit, 88 spring, 89 Timer.

Claims (3)

A disc tray having a plurality of tray positions respectively provided corresponding to a plurality of disc types;
A disk transport mechanism for transporting a disk placed in any one of the plurality of tray positions of the disk tray to a chucking position;
The type of the disc is discriminated based on a carrying time in which the disc placed on any one of the plurality of tray positions of the disc tray is carried to the chucking position by the disc carrying mechanism. A control circuit for executing a pickup control corresponding to the type of the disk based on the result,
The disk transport mechanism is
A transport bar for transporting the disk in contact with the disk;
A detector for detecting contact with the disk,
The information recording / reproducing apparatus, wherein the control circuit includes a measuring device that measures a transport time of the disk based on a detection result of the detector. A disc tray having a plurality of tray positions respectively provided corresponding to a plurality of disc types;
A disk transport mechanism for transporting a disk placed in any one of the plurality of tray positions of the disk tray to a chucking position;
The type of the disc is discriminated based on a carrying time in which the disc placed on any one of the plurality of tray positions of the disc tray is carried to the chucking position by the disc carrying mechanism. An information recording / reproducing apparatus comprising: a control circuit that executes pickup control corresponding to the type of the disc based on the result. The disk transport mechanism is
A transport bar for transporting the disk in contact with the disk;
A detector for detecting contact with the disk,
The information recording / reproducing apparatus according to claim 2, wherein the control circuit includes a measuring device that measures a transport time of the disk based on a detection result of the detector.

Images