JP4232813B2 - Optical disk device - Google Patents

Description

  The present invention relates to an optical disc apparatus including a rotary tray having a plurality of placement units on which optical discs are placed.

  Some optical disk apparatuses include a disk changer that stores a plurality of optical disks and reproduces a predetermined optical disk. In this type of optical disk device, when a predetermined optical disk is reproduced from among a plurality of stored optical disks, and another optical disk is reproduced in the middle of the optical disk apparatus, an attempt is made to reproduce the predetermined optical disk. Playback starts from the beginning.

  Therefore, if you want to stop playback of a predetermined optical disc in the middle, play other optical discs, and then play back the portion of the predetermined optical disc that was stopped from the previous playback, fast-forward the previously played portion, It is unavoidable to play from the first part to the part where the previous playback was stopped, and there is a problem that the operation is cumbersome when fast-forwarding, while the playback from the first part to the part where the previous playback was stopped is unavoidable Then, there is a problem that the time between them is wasted.

Therefore, a resume function has been proposed in which the reproduction of a predetermined optical disk is stopped halfway, another optical disk is reproduced, and then the predetermined optical disk is reproduced from the portion where the previous reproduction was stopped (see Patent Document 1).
Japanese Patent Laid-Open No. 10-241344

  However, in the case of resume reproduction in an optical disk apparatus provided with the disk changer of Patent Document 1, it is necessary to determine whether the optical disk at a predetermined position is the same optical disk in consideration of the possibility that the optical disk at a predetermined position has been replaced. It takes longer to start playback than normal playback.

  The present invention reduces the time taken to start resume playback when there is no possibility that the optical disk has been replaced, and ensures that the optical disk is not actually replaced even when the optical disk may have been replaced. Another object of the present invention is to provide an optical disc apparatus that is improved in usability by resuming playback.

In order to achieve the above object, the present invention includes a rotary tray having a plurality of placement portions on which optical disks are placed, and the rotary tray ejects to a position where all of the placement portions can exchange the optical disc. In the optical disc apparatus, the rotary tray is rotatable in the ejected state, and a desired optical disc can be moved to a replaceable position.
The unique information and the resume information of the reproduced optical disc are stored for each placement section,
When the optical disc is reproduced after the rotary tray is ejected and stored, and when resume information corresponding to the placement unit on which the optical disc to be reproduced is placed is stored,
When playing back an optical disc placed on a placement part that is not in a position where the optical disc can be replaced when the rotary tray is ejected, it is determined that the optical disc has not been exchanged, and resume playback is performed.
Even when the optical disc placed on the placement portion that has come to the position where the optical disc can be replaced when the rotary tray is ejected, the stored unique information and the unique information of the optical disc If they match, it is judged that the optical disk has not been exchanged, and resume reproduction is performed.

  In the above optical disk apparatus, it is preferable that the resume reproduction can be set to be selectable.

When the present invention is embodied, a rotary tray having five mounting parts on which optical disks are placed is provided, and the rotary trays are ejected to a position where two adjacent placing parts can exchange the optical disk and ejected. In the optical disk apparatus in which the rotary tray is rotatable in a state and a desired optical disk can be moved to a replaceable position.
The unique information and the resume information of the reproduced optical disc are stored for each placement section,
When the optical disc is reproduced after the rotary tray is ejected and stored, and when resume information corresponding to the placement unit on which the optical disc to be reproduced is placed is stored,
When playing back an optical disc placed on a placement part that is not in a position where the optical disc can be replaced when the rotary tray is ejected, it is determined that the optical disc has not been exchanged, and resume playback is performed.
Even when the optical disc placed on the placement portion that has come to the position where the optical disc can be replaced when the rotary tray is ejected, the stored unique information and the unique information of the optical disc If they match, it is determined that this optical disc has not been replaced and resumed.
The resume playback can be set to enable or disable.

  According to the present invention, when playing back an optical disc that can be discriminated as not being replaced at the time of ejecting and storing the rotary tray, whether or not the unique information of the optical disc to be played matches the stored unique information. Resume playback can be performed without determination, so that it takes less time to start resume playback, and when playing an optical disc that may have been replaced, the unique information of the optical disc to be played back and the stored unique information Are matched, and if they match, resume playback is performed, so that when the optical disc is not exchanged, the resume playback can be performed reliably, improving usability.

  FIG. 1 is a perspective view showing an external appearance of the optical disc apparatus. A disk changer 200 is accommodated in a rectangular cabinet type cabinet 100. The disc changer 200 includes a rectangular plate-like slide tray 210. A disc-shaped rotary tray 220 is rotatably supported on the upper surface of the slide tray 210, and a chuck is provided at a predetermined position on the upper surface of the rotary tray 220. An arm 230 is attached. An operation unit 110 is provided on the front surface of the cabinet 100 to instruct to take out and play back the optical disk. The operation unit may be provided on the remote control.

  Further, on the lower surface of the slide tray 210, a mechanical holder equipped with an optical pickup (not shown), a drive unit that rotationally drives the rotary tray 220, a position detection sensor that detects the rotational position of the rotary tray 220, and rotation of the rotary tray 220 are provided. A regulating lock mechanism and the like are assembled. Furthermore, a control board is accommodated in the inner bottom part of the cabinet 100 via a shield structure.

  FIG. 2 is an exploded perspective view showing the main configuration of the disk changer 200. The slide tray 210 is installed to be slidable in the front-rear direction inside the cabinet 100 so as to be discharged to the front surface, and a circular recess 211 is provided on the upper surface. A support shaft 212 is erected vertically upward at the center of the slide tray 210. The rotary tray 220 has five mounting portions 221 on the upper surface of which the optical disks are mounted at equal intervals in the circumferential direction. Two or more placement units 221 may be provided. A shaft hole 222 is provided in the center of the rotary tray 220, and the shaft hole 222 is inserted into the support shaft 212 and is rotatably supported.

  Further, one end of the chuck arm 230 is assembled to the upper end of the support shaft 212, and the first chucking portion 231 provided on the other end side of the chuck arm 230 can be opposed to the through hole 213 formed in the slide tray 210. It is said. On the other hand, below the through-hole 213, a mechanism in which a second chucking portion 241 capable of sandwiching the rotation axis of the optical disc between the first chucking portion 231 and an optical pickup for reading recording data from the optical disc is mounted. A holder 240 is assembled.

  The mechanical holder 240 is assembled so that the second chucking portion 241 and the optical pickup can be raised and lowered with respect to the through-hole 213, and a motion gear 250 that controls the raising and lowering timing of the mechanical holder 240 is adjacent to the mechanical holder 240. It is attached to the lower surface of the slide tray 210. A position detection sensor 270 that detects the rotational position of the rotary tray 220 is attached to the lower surface of the slide tray 210.

  FIG. 3 is a plan view of the optical disc apparatus with the rotary tray 220 ejected. When the open / close button of the operation unit 110 is pressed, the rotary tray 220 is discharged together with the slide tray 210. At this time, the rotary tray 220 is ejected to a position where two adjacent placement units (the placement units 221c and 221d in FIG. 3) can exchange the optical disk. Further, in a state where the rotary tray 220 is ejected, the rotary tray 220 is controlled to rotate one fifth to the left or right each time the left movement button or the right movement button of the operation unit 110 is pressed once. Yes. Thereby, a desired optical disk can be moved to a replaceable position.

  Next, resume playback will be described. Resume playback is a function in which playback of a predetermined optical disc is stopped halfway, another optical disc is played back or replaced with another optical disc, and then the predetermined optical disc is played back from the portion where playback was previously stopped. In order to realize resume reproduction with the optical disc apparatus of the present invention, first, a resume information acquisition process for obtaining resume information of the reproduced optical disc is necessary. In some cases, the rotary tray 220 is ejected to replace the optical disc. It is necessary to perform a process of exchanging the optical disk to be stored and a process of reproducing using the acquired resume information.

  FIG. 4 is a flowchart showing the operation of the optical disc apparatus in the resume information acquisition process. During playback of the optical disc, it is determined in step S10 whether or not there is a playback stop instruction. The reproduction stop instruction is given when a stop button or the like of the operation unit 110 is pressed.

  If there is a reproduction stop instruction in step S10, the process proceeds to step S11 to acquire resume information. As the resume information, at least playback stop position information is required. In addition, in the case of a CD, a volume value, an equalizer value, a surround mode, a loudness mode, etc. can be adopted. In the case of a DVD, angle information and Subtitle information can be adopted.

  Next, the process proceeds from step S11 to step S12, and the acquired resume information and specific information for specifying the optical disk (TOC (Table Of Contents) information in the case of CD, disk ID in the case of DVD) can be used. The information is stored in correspondence with the placement unit on which the optical disc is placed. The unique information may be information acquired at the time of reading the optical disc, and may be stored in correspondence with the placement unit at the time of reading the optical disc. The storage unit (not shown) for storing the resume information is not particularly limited, and may be any rewritable one such as a flash memory.

  Through the resume information acquisition process described above, resume information can be acquired and stored for each of the placement units 221a to 221e. When the user replaces the optical disk after the resume information acquisition process of FIG. 4 is completed, the following optical disk replacement process is executed.

  FIG. 5 is a flowchart showing the operation of the optical disk apparatus in the optical disk replacement process. First, in step S20, it is determined whether or not the open / close button of the operation unit 110 has been pressed. When the open / close button is pressed in step S20, the process proceeds to step S21 and the rotary tray 220 is discharged. When the rotary tray 220 is ejected, the user can change the optical disk.

  Then, the process proceeds from step S21 to step S22, and the mounting parts (the mounting parts 221c and 221d in FIG. 3) at positions where the optical disk can be replaced when the rotary tray 220 is ejected are detected and stored. It can be said that there is a possibility that the optical disk of the loading unit stored here has been replaced. In step S22, a placement unit (the placement units 221a, 221b, and 221e in FIG. 3) that is not at a position where the optical disk can be replaced may be detected and stored.

  Proceeding from step S22 to step S23, it is determined whether or not the left movement button or the right movement button has been pressed. When the left move button or the right move button is pressed in step S23, the process proceeds to step S24 to rotate the rotary tray 220. Thereafter, the process returns to step S22, and a loading unit at a position where the optical disk can be replaced is detected and additionally stored. Here, it can be said that the additionally stored optical disk of the mounting unit may have been replaced.

  On the other hand, if the left move button or the right move button is not pressed in step S23, the process proceeds to step S25 to determine whether or not the open / close button is pressed. If the open / close button is pressed in step S25, the process proceeds to step S26 to store the rotary tray 220. On the other hand, if the open / close button is not pressed in step S25, the process returns to step S23.

  Through the above optical disk replacement process, it is possible to determine which of the mounting units 221a to 221e has been replaced. After the optical disk replacement process in FIG. 5 is completed, the following reproduction process is executed when the user desires to reproduce the optical disk.

  FIG. 6 is a flowchart showing the operation of the optical disc apparatus in the reproduction process. First, in step S30, it is determined whether or not the playback button of the operation unit 110 has been pressed. If the playback button is pressed in step S30, the process proceeds to step S31 to determine whether the resume playback mode or the normal playback mode. The resume playback mode is a mode in which resume playback is enabled and resume playback is possible if resume playback is possible. On the other hand, the normal playback mode is a mode in which resume playback is disabled and normal playback, that is, playback from the beginning, regardless of whether or not resume playback is possible. These modes can be switched in advance using a user setting screen or the like. Note that step S31 is not always necessary, and only the resume playback mode may be provided.

  For example, when stopping while watching a DVD, if the resume playback mode is set, it is convenient that viewing can be resumed from a subsequent scene. For example, when stopping while listening to music on a CD, if the normal playback mode is set, even if the same CD is played later, it is played back from the beginning, which is convenient.

  If it is the normal playback mode in step S31, the process proceeds to step S33 to play the optical disc from the first part. On the other hand, if it is in the resume playback mode in step S31, the process proceeds to step S32 to determine whether resume information corresponding to the placement unit on which the optical disc to be played is placed is stored.

  In step S32, if there is no corresponding resume information, the process proceeds to step S33 to reproduce the optical disk from the first part. On the other hand, if there is corresponding resume information in step S32, the process proceeds to step S34, and whether or not the placement unit on which the optical disc to be reproduced is placed is in a position where the optical disc can be replaced while the rotary tray 220 is ejected. Is determined. This determination can be made by using the information stored in step S22 of FIG.

  If it is determined in step S34 that the optical disk is in a position that cannot be replaced, it is determined that the optical disk has not been replaced, the process proceeds to step S35, the stored resume information is read, and resume playback is started. To do.

  On the other hand, in step S34, if the optical disk is a placement unit that was in a position where the optical disk can be replaced, there is a possibility that this optical disk has been replaced, so that the process proceeds to step S36 and the unique information and resume of this optical disk are reached. It is determined whether the unique information of the optical disc stored together with the information matches.

  If the unique information matches in step S36, it is determined that the optical disk has not been exchanged, the process proceeds to step S35, the stored resume information is read, and resume playback is started. On the other hand, if the unique information does not match in step S36, it is determined that the optical disk has been replaced, and the process proceeds to step S37 to delete the resume information corresponding to the placement unit, and then proceeds to step S33 to remove the first optical disk. Play from part.

  As described above, when it is determined that the optical disk has not been exchanged, the process proceeds from step S34 to step S34 without passing through step S36. Therefore, the time required to start resume reproduction is shortened, and the usability is improved.

  Further, even when the optical disc placed on the placement unit that has come to the position where the optical disc can be replaced is reproduced when the rotary tray 220 is ejected, the stored unique information and the uniqueness of the optical disc If the information matches, the optical disc is judged to have not been exchanged and resume playback is performed. Therefore, even if there is a possibility that the optical disc has been exchanged, if the optical disc is not actually exchanged, the resume reproduction is surely performed. This improves usability.

  Further, in the above-described embodiment, even when the optical disc placed on the placement unit that has come to the position where the optical disc can be exchanged is reproduced when the rotary tray 220 is ejected, the optical disc can be exchanged. If the resume information corresponding to the placement unit is stored, it is determined that the optical disc placed on the placement unit has not been replaced. You may make it reproduce | regenerate.

  This is because, for example, when the rotary tray 220 is stored immediately after being discharged, or when the rotary tray 220 is continuously rotated with the rotary tray 220 being discharged, the state where the optical disk can be replaced is short. This optical disc is considered not to be replaced.

  Specifically, when the rotary tray 220 is in the ejected state, a time measuring unit is provided for measuring the time when the optical disk is in a position where it can be replaced, and only the mounting part that has been in a position where the optical disk can be replaced for a predetermined time or longer is shown in FIG. In step S34, it may be determined that there is a possibility that the optical disk has been replaced. This increases the probability that it can be determined in step S34 in FIG. 6 that the optical disk has not been exchanged. In this case, the process proceeds from step S34 to step S35 without passing through step S36, so the time taken to start resume playback is shortened. Become.

  The optical disc apparatus of the present invention includes a rotary tray having a plurality of placement units on which optical discs are placed, and can be used for an apparatus for reproducing optical discs such as CDs and DVDs.

It is a perspective view which shows the external appearance of the optical disk apparatus of this invention. It is a disassembled perspective view which shows the main structures of the disc changer of this invention. It is a top view of the optical disk apparatus of the state which discharged | emitted the rotary tray of this invention. It is a flowchart which shows operation | movement of the optical disk apparatus in the resume information acquisition process of this invention. 6 is a flowchart showing the operation of the optical disc apparatus in the optical disc exchange process of the present invention. 6 is a flowchart showing the operation of the optical disc apparatus in the reproduction processing of the present invention.

Explanation of symbols

220 Rotary trays 221, 221a to 221e

Claims (3)

A rotary tray having five mounting parts on which optical disks are placed is provided. The rotary trays are ejected to a position where two adjacent placing parts can exchange the optical disk, and the rotary tray rotates in the ejected state. In an optical disc apparatus capable of moving a desired optical disc to a replaceable position,
The unique information and the resume information of the reproduced optical disc are stored for each placement section,
When the optical disc is reproduced after the rotary tray is ejected and stored, and when resume information corresponding to the placement unit on which the optical disc to be reproduced is placed is stored,
When playing back an optical disc placed on a placement part that is not in a position where the optical disc can be replaced when the rotary tray is ejected, it is determined that the optical disc has not been exchanged, and resume playback is performed.
Even when the optical disc placed on the placement unit that has come to a position where the optical disc can be replaced when the rotary tray is ejected, the stored unique information and the unique information of the optical disc If they match, it is determined that this optical disc has not been replaced and resumed.
An optical disc apparatus characterized in that it can be set to enable or disable the resume reproduction. A rotary tray having a plurality of mounting portions on which optical disks are placed is provided, and the rotary trays are ejected to a position where all of the placing portions can exchange the optical discs. In an optical disc apparatus capable of rotating and moving a desired optical disc to a replaceable position,
The unique information and the resume information of the reproduced optical disc are stored for each placement section,
When the optical disc is reproduced after the rotary tray is ejected and stored, and when resume information corresponding to the placement unit on which the optical disc to be reproduced is placed is stored,
When playing back an optical disc placed on a placement part that is not in a position where the optical disc can be replaced when the rotary tray is ejected, it is determined that the optical disc has not been exchanged, and resume playback is performed.
Even when the optical disc placed on the placement unit that has come to a position where the optical disc can be replaced when the rotary tray is ejected, the stored unique information and the unique information of the optical disc If the two match, the optical disc apparatus determines that the optical disc has not been replaced and resumes reproduction.   3. The optical disc apparatus according to claim 2, wherein it is possible to select whether to enable or disable the resume reproduction.

Images