JP2008226344A - Optical disk reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform resume reproduction with excellent convenience. <P>SOLUTION: A RAM 5 of a disk reproduction device 1 has a resume information storage part 52 which stores resume information including reproduction position information which indicates a reproduction position of reproduced optical disk 12 for every mounting part. An MPU 4 is equipped with; a discard condition setting part 41 which sets a condition to discard the resume information corresponding to an exchangeable optical disk 12; a reproduction execution part 47 which reproduces one optical disk 12 being mounted on a reproduction position when the operation input for reproduction is received; a presence determination part 43 which determines whether the resume information corresponding to the one optical disk 12 is stored when the operation input for reproduction is received; and a cancel execution part 46 to discard the resume information according to a condition set by the discard condition setting part 41 when it is determined that the resume information is stored. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention includes a disk changer that includes a plurality of mounting units on which optical disks are mounted, and is configured to be able to replace the optical disk mounted on at least one mounting unit. The present invention relates to an optical disk reproducing apparatus for reproducing information stored in one optical disk placed at a preset position.

  A disc changer having a plurality of placement units on which optical discs are placed and configured to replace at least one optical disc placed on the placement unit. 2. Description of the Related Art An optical disk playback device that plays back information stored on one optical disk placed at a position is known. In this type of optical disk playback apparatus, one optical disk mounted at a preset position is played from among a plurality of optical disks mounted on the disk changer, and playback is temporarily stopped during the playback. When the first optical disk is reproduced again after the first optical disk is reproduced, the reproduction of the first optical disk is started from the first part.

  Therefore, when the first optical disk is reproduced, and once the reproduction is stopped and the other optical disk is reproduced during the reproduction, the first optical disk is reproduced again from the position where the previous reproduction of the first optical disk was stopped. If you want to play, you need to fast-forward the part that was played last time or unavoidably play from the first part to the part that stopped the previous playback, there is a problem that the operation is cumbersome when fast-forwarding, On the other hand, if playback is unavoidable from the first part to the part where the previous playback was stopped, there was a problem that the time between them was wasted.

Therefore, when playing back one optical disc, stopping playback in the middle of the playback, playing back another optical disc, and then playing back the first optical disc again, from the position where the previous playback of the first optical disc was stopped. A resume playback apparatus having a resume function that enables playback is proposed (see Patent Document 1).
JP-A-10-241344

  However, when performing resume playback (reproduction processing in which playback is started from the position where the previous playback was stopped) in the resume playback device, the previous playback was stopped in consideration of the possibility that the optical disk was replaced. Since it is necessary to determine whether or not the optical disk is the same as the optical disk, the resume reproduction process may take time before the reproduction is started as compared with the case where normal reproduction is performed.

  In view of the above problems, an object of the present invention is to provide an optical disc reproducing apparatus capable of performing resume reproduction with good convenience.

  In order to achieve the above object, an optical disc reproducing apparatus according to claim 1 has a plurality of placement portions on which optical discs are placed, and is configured such that an optical disc placed on at least one placement portion can be replaced. An optical disk reproducing apparatus for reproducing information stored in one optical disk placed at a preset position among the plurality of optical disks, wherein the reproduction position of the reproduced optical disk is determined. Resume information storage means for storing resume information including the reproduction position information and disc identification information which is information for identifying the optical disc for each placement section, and resume information corresponding to the replaceable optical disc are set in advance. Discard indicating whether to discard if one condition is satisfied, or to discard if a second condition that is different from the first condition is set in advance A discard condition setting means for setting a case and an operation input for performing reproduction from the outside are received, and when an operation input for performing reproduction is received, it is placed at a preset reproduction position When a reproduction execution unit for reproducing one optical disc and an operation input for performing reproduction by the reproduction execution unit are received, resume information corresponding to the one optical disc is stored in the resume information storage unit. Presence / absence determination means for determining whether or not resume information is stored by the presence / absence determination means, before the reproduction processing is started by the reproduction execution means, by the discard condition setting means. Discard execution means for discarding resume information according to the set conditions, and at the exchange position, which is the time when the optical disc is placed at the exchangeable position A first measuring unit that determines that the first condition is satisfied when the replacement position time is equal to or longer than a predetermined time set in advance, and the presence / absence determining unit determines that the first optical disc is When it is determined that the corresponding resume information is stored, the identification information acquisition means for reading the disk identification information from the one optical disk, and the disk identification information acquired by the identification information acquisition means are the resume information storage. Second discriminating means for judging that the second condition is satisfied when the disc identification information stored in the means does not match, the discard condition setting means accepts an operation input from the outside and accepts it The discard condition is set based on the inputted operation input.

  The optical disk reproducing device according to claim 2 includes a disk changer having a plurality of mounting parts on which the optical disks are mounted, and configured to exchange at least one optical disk mounted on the mounting part, An optical disk reproducing apparatus for reproducing information stored in one optical disk placed at a preset position among the plurality of optical disks, wherein reproduction position information indicating the reproduction position of the reproduced optical disk and the optical disk Resume information storage means for storing resume information including disc identification information, which is identification information, for each placement unit, and resume information corresponding to a replaceable optical disc when the first preset condition is satisfied Or a discarding condition setting that sets a discarding condition indicating whether to discard when a second condition that is different from the first condition is set in advance. When an operation input for performing reproduction is received and an operation input for performing reproduction is received, one optical disk placed at a preset reproduction position is reproduced. Whether or not to determine whether or not resume information corresponding to the first optical disc is stored in the resume information storage means when a reproduction execution means and an operation input indicating that reproduction is to be performed are received by the reproduction execution means When it is determined by the determining means and the presence / absence determining means that the resume information is stored, a resume process is started according to the condition set by the discard condition setting means before the reproduction processing is started by the reproduction executing means. And a discarding execution unit for discarding information.

  An optical disk reproducing apparatus according to claim 3 is the optical disk reproducing apparatus according to claim 2, wherein time measuring means for measuring a replacement position time which is a time when the optical disk is placed at a replaceable position, and the replacement And a first determination unit that determines that the first condition is satisfied when the position time is equal to or more than a predetermined time set in advance.

  An optical disk reproducing apparatus according to claim 4 is the optical disk reproducing apparatus according to claim 2 or 3, wherein the presence / absence determining means determines that the resume information corresponding to the first optical disk is stored. In this case, the identification information acquisition means for reading the disk identification information from the one optical disk and the disk identification information acquired by the identification information acquisition means do not match the disk identification information stored in the resume information storage means. And a second determination unit that determines that the second condition is satisfied.

  An optical disk reproducing device according to claim 5 is the optical disk reproducing device according to any one of claims 2 to 4, wherein the discard condition setting means accepts an operation input from the outside. The discard condition is set based on an operation input.

  According to the optical disk reproduction apparatus of claim 1, resume information including reproduction position information indicating the reproduction position of the reproduced optical disk and disk identification information which is information for identifying the optical disk is stored in the resume information storage unit for each mounting unit. The resume information corresponding to the replaceable optical disc is discarded when the first condition is set in advance, or is set in advance and satisfies the second condition that is different from the first condition. In this case, a discard condition indicating whether or not to discard is set. Then, when an operation input for performing reproduction from outside is received and an operation input for performing reproduction is received, reproduction of one optical disk placed at a preset reproduction position is performed. Is called. Further, when an operation input for performing reproduction is received, it is determined whether or not resume information corresponding to one optical disk is stored in the resume information storage unit, and it is determined that the resume information is stored. In this case, the resume information is discarded according to the set condition before the reproduction process is started, so that the resume reproduction can be performed with good convenience.

  That is, setting a discard condition indicating whether the user discards the resume information when the first condition is satisfied, or discards the resume information when the second condition different from the first condition is satisfied. Therefore, the user can select the condition for discarding the resume information from two preset conditions (= first condition and second condition), so that the resume reproduction can be performed with good convenience. It is.

  Further, since the exchange position time, which is the time when the optical disc is placed at the exchangeable position, is measured and the exchange position time is equal to or longer than a predetermined time set in advance, it is determined that the first condition is satisfied. Resume playback can be performed with good convenience.

  That is, when the replacement position time, which is the time when the optical disk is placed at the replaceable position, is measured and the replacement position time is equal to or longer than a predetermined time set in advance, the possibility that the optical disk has been replaced as the first condition Since there is set a condition for discarding resume information when there is (= a condition for actively discarding resume information), it is possible to perform resume reproduction with better convenience.

  Further, when it is determined that the resume information corresponding to one optical disc is stored, the disc identification information is read from the one optical disc, and the obtained disc identification information is stored in the resume information storage means. If the disc identification information does not match the disc identification information, it is determined that the second condition is satisfied, so that resume playback can be performed with even more convenience.

  That is, when it is determined that the resume information corresponding to one optical disc is stored, the disc identification information is read from the one optical disc, and the obtained disc identification information is stored in the resume information storage means. When the disc identification information does not match the disc identification information, it is determined that the second condition is satisfied. Therefore, as the second condition, the disc identification information obtained by reading the disc identification information from one optical disc is stored in the resume information storage means. Since the condition that the resume information is discarded when the disc identification information does not match (= the condition that the resume information is not discarded as much as possible) is set, the resume reproduction can be performed more conveniently.

  In addition, since the operation input from the outside is accepted, and the discard condition is set based on the accepted operation input, the user can set the discard condition, so that resume playback can be performed more conveniently. It can be carried out.

  According to the optical disk reproduction apparatus of claim 2, resume information including reproduction position information indicating the reproduction position of the reproduced optical disk and disk identification information which is information for identifying the optical disk is stored in the resume information storage unit. The resume information corresponding to the replaceable optical disc is discarded when the first condition is set in advance, or is set in advance and satisfies the second condition that is different from the first condition. In this case, a discard condition indicating whether or not to discard is set. Then, when an operation input for performing reproduction from outside is received and an operation input for performing reproduction is received, reproduction of one optical disk placed at a preset reproduction position is performed. Is called. Further, when an operation input for performing reproduction is received, it is determined whether or not resume information corresponding to one optical disk is stored in the resume information storage unit, and it is determined that the resume information is stored. In this case, the resume information is discarded according to the set condition before the reproduction process is started, so that the resume reproduction can be performed with good convenience.

  That is, setting a discard condition indicating whether the user discards the resume information when the first condition is satisfied, or discards the resume information when the second condition different from the first condition is satisfied. Therefore, the user can select the condition for discarding the resume information from two preset conditions (= first condition and second condition), so that the resume reproduction can be performed with good convenience. It is.

  According to the optical disk reproducing apparatus of the third aspect, when the replacement position time, which is the time when the optical disk is placed at the replaceable position, is measured and the replacement position time is equal to or longer than a predetermined time set in advance, Since it is determined that one condition is satisfied, the resume reproduction can be performed with even more convenience.

  That is, when the replacement position time, which is the time when the optical disk is placed at the replaceable position, is measured and the replacement position time is equal to or longer than a predetermined time set in advance, the possibility that the optical disk has been replaced as the first condition Since there is set a condition for discarding resume information when there is (= a condition for actively discarding resume information), it is possible to perform resume reproduction with better convenience.

  According to the optical disk reproducing apparatus of claim 4, when it is determined that the resume information corresponding to one optical disk is stored, the disk identification information is read from the one optical disk, and the obtained disk identification is obtained. When the information does not match the disc identification information stored in the resume information storage means, it is determined that the second condition is satisfied, so that resume playback can be performed with even more convenience.

  That is, when it is determined that the resume information corresponding to one optical disc is stored, the disc identification information is read from the one optical disc, and the obtained disc identification information is stored in the resume information storage means. When the disc identification information does not match the disc identification information, it is determined that the second condition is satisfied. Therefore, as the second condition, the disc identification information obtained by reading the disc identification information from one optical disc is stored in the resume information storage means. Since the condition that the resume information is discarded when the disc identification information does not match (= the condition that the resume information is not discarded as much as possible) is set, the resume reproduction can be performed more conveniently.

  According to the optical disk reproducing apparatus of the fifth aspect, since the operation input from the outside is accepted and the discard condition is set based on the accepted operation input, the user can set the discard condition. Therefore, resume playback can be performed with even better convenience.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of the appearance of a disc player according to the present invention. A disc player 1 (corresponding to an optical disc playback apparatus) is provided with a disc changer 2. The disc changer 2 has a plurality of (here, five) placement portions 221 (see FIGS. 2 and 3) on which optical disks are placed, and at least one placement portion 221 (here, FIG. 3). The two optical discs placed on the two placement portions 221c and 221d) shown in FIG.

  The disc changer 2 includes a rectangular plate-like slide tray 21, and a disk-like rotary tray 22 is rotatably supported on the upper surface of the slide tray 21, and a predetermined position (on the left side in the figure) on the upper surface of the rotary tray 22. ) Has a chuck arm 23 attached thereto. Further, on the front side of the disc player 1, an operation unit 17 (see FIG. 4) for instructing the ejection and storage of the slide tray 21 and the reproduction of the optical disc is disposed.

  Further, on the lower surface of the slide tray 21, a mechanical holder on which an optical pickup 11 and the like, which will be described later with reference to FIG. 4, are mounted, a tray rotation driving motor 29 for rotating the rotary tray 22, and a rotary tray 22 to be described later with reference to FIG. A position detection sensor 27 for detecting the rotation position, a lock mechanism for restricting the rotation of the rotary tray 22, and the like are provided. Further, a control board is accommodated in the inner bottom portion of the disc player 1 via a shield structure.

  The operation unit 17 includes an open / close button 171 and a rotation button 172. The open / close button 171 is used when the slide tray 21 is slid from the storage position (= position where the optical disk is played back) to the discharge position (= position where the optical disk can be replaced) or from the discharge position to the storage position. This button is pressed. The rotation button 172 is a button that is pressed when the rotary tray 22 is rotated by 1/5 (= rotation of one optical disk).

  FIG. 2 is an exploded perspective view showing an example of the mechanical configuration of the disk changer 2. The slide tray 21 is disposed so as to be slidable in the front-rear direction so that the slide tray 21 can be discharged to the front side, and a substantially circular recess 211 is provided on the upper surface. A support shaft 212 is erected vertically upward in the center of the slide tray 21. The rotary tray 22 has five mounting portions 221 on the upper surface thereof on which optical disks are mounted at equal intervals in the circumferential direction. In addition, the mounting part 221 should just be 2 or more. In addition, a shaft hole 222 is provided in the center of the rotary tray 22, and the shaft hole 222 is inserted into the support shaft 212 and is rotatably supported.

  Further, one end of the chuck arm 23 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 23 can be opposed to the through hole 213 formed in the slide tray 21. It is said. On the other hand, below the through-hole 213, a second chucking portion 241 that can sandwich the rotation axis of the optical disc between the first chucking portion 231 and an optical pickup 11 that reads recording data from the optical disc (FIG. 4) is mounted.

  The mechanical holder 24 is arranged so that the second chucking portion 241 and the optical pickup 11 (see FIG. 4) can be raised and lowered relative to the through hole 213, and a motion gear 25 that controls the raising and lowering timing of the mechanical holder 24 is the mechanical holder 24. Is attached to the lower surface of the slide tray 21. A position detection sensor 27 that detects the rotational position of the rotary tray 22 is attached to the lower surface of the slide tray 21.

  FIG. 3 is a plan view of the disc player 1 in a state where the rotary tray 22 is ejected (= an optical disc can be exchanged). When the open / close button 171 of the operation unit 17 is pressed, the rotary tray 22 is discharged together with the slide tray 21. At this time, the rotary tray 22 is discharged 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 22 is ejected, the rotary tray 22 is controlled to rotate one-fifth to the left or right each time the rotation button 172 of the operation unit 17 is pressed once. Thereby, the desired optical disk can be moved to a replaceable position.

  Here, the resume reproduction will be described. Resume playback is a function for stopping playback of one optical disc in the middle and playing another optical disc (or replacing it with another optical disc), and then playing the first optical disc from the position where the previous playback was stopped. It is.

  FIG. 4 is a configuration diagram showing an example of the electrical configuration of the disc player 1. As shown in the figure, the disc player 1 includes an optical pickup 11, an output device 13, a control device 14, a drive device 15, a display unit 16, and an operation unit 17.

  The optical pickup 11 (corresponding to a part of the identification information acquisition means) includes a CD LD (Laser Diode) and a DVD LD, and uses reflected light from an optical disk 12 (CD or DVD) to be reproduced as an electrical signal. It converts various information such as audio information and video information stored in the optical disc 12 (CD or DVD) after conversion. The LD for CD irradiates a laser beam that reads information stored on the CD. The LD for DVD irradiates a laser beam that reads information stored on the DVD.

  Further, the optical pickup 11 is configured to be movable in the radial direction and the vertical direction (proximity and separation directions) of the optical disk 12 by a feed motor 151.

  The output device 13 converts information such as audio information and video information from the optical pickup 11 into audio and image and outputs them to a speaker and a display 3 (not shown). (Digital Signal Processor) 132, a reproduction processing circuit 133, and an output circuit 134 are provided.

  The RF amplifier 131 (corresponding to a part of the identification information acquisition means) amplifies a signal corresponding to audio information, video information, etc. from the optical pickup 11 and outputs it to the DSP 132.

  The DSP 132 and the reproduction processing circuit 133 perform various information processing (for example, decoding processing, image processing, etc.) for reproduction on the signal from the RF amplifier 131. The output circuit 134 performs DA conversion processing or the like to output information from the reproduction processing circuit 133 to a speaker and the display 3 (not shown). The display 3 includes an LCD (Liquid Crystal Display) or the like, and displays video information from the output circuit 134 so as to be visible from the outside.

  The control device 14 controls operations of the optical pickup 11 and the driving device 15 based on an instruction operation received via the operation unit 17, and includes a system controller 141 and a driver IC 142. The system controller 141 receives information from the operation unit 17 and transmits the information to the DSP 132, and transmits information from the DSP 132 to the display unit 16.

  The driver IC 142 controls the operations of the optical pickup 11 and the driving device 15 based on instructions from the DSP 132. Specifically, the driver IC 142 controls the operations of the CD LD and the DVD LD disposed in the optical pickup 11 and controls the operations of the feed motor 151 and the spindle motor 152 constituting the driving device 15. It is. The driver IC 142 controls the operations of the tray opening / closing motor 28 and the tray rotation motor 29 disposed in the disk changer 2.

  Here, the tray opening / closing motor 28 opens and closes the slide tray 21 (see FIGS. 1 and 2) disposed in the disk changer 2 (= slides between the storage position and the discharge position). The tray rotation motor 29 rotates the rotary tray 22 (see FIGS. 1 and 2) disposed in the disk changer 2.

  The driving device 15 includes a feed motor 151 and a spindle motor 152. The feed motor 151 moves the optical pickup 11 in the radial direction and the vertical direction of the optical disc 12 based on an instruction from the driver IC 142. The spindle motor 152 rotates the optical disk 12 based on an instruction from the driver IC 142.

  The display unit 16 includes an LCD or the like, and displays information from the DSP 132 so as to be visible from the outside. The operation unit 17 (corresponding to a part of the discard condition setting unit and a part of the reproduction execution unit) includes various operation buttons such as an open / close button 171 and a rotation button 172 shown in FIG. The operation signal corresponding to the DSP 132 is output.

  FIG. 5 is a functional configuration diagram showing an example of the configuration of the main part of the disc player 1 according to the present invention. The DSP 32 includes an MPU (Micro Processing Unit) 4, a RAM (Random Access Memory) 5, and an unillustrated ROM (Read Only Memory). The MPU 4 functionally includes a discard condition setting unit 41, a reproduction accepting unit 42, a presence / absence determination unit 43, a time measurement unit 44, a first determination unit 45, a discard execution unit 46, a reproduction execution unit 47, an identification information acquisition unit 48, The RAM 5 functionally includes a discard condition storage unit 51, a resume information storage unit 52, and an exchange position time storage unit 53.

  Here, the MPU 4 reads and executes a program stored in advance in a ROM (not shown) or the like, thereby executing a discard condition setting unit 41, a reproduction accepting unit 42, a presence / absence determining unit 43, a time measuring unit 44, and a first determining unit. 45, functioning as a function unit such as a discard execution unit 46, a reproduction execution unit 47, an identification information acquisition unit 48, a second determination unit 49, and the like. It functions as a functional unit such as the storage unit 53.

  Of various data stored in the RAM 5 or ROM (not shown), data that can be stored in a removable recording medium is, for example, a hard disk drive, an optical disk drive, a flexible disk drive, a silicon disk drive, a cassette medium reader, etc. In this case, the recording medium is a hard disk, an optical disk, a flexible disk, a CD, a DVD, a semiconductor memory, or the like.

  The discard condition storage unit 51 stores the discard condition set by the discard condition setting unit 41. Specifically, the discard condition storage unit 51 stores a “first condition” or “second condition” to be described later as a condition for discarding the resume information stored in the resume information storage unit 52.

  The resume information storage unit 52 (corresponding to the resume information storage means) is reproduction position information indicating the reproduction position of the reproduced optical disk 12 and disk identification information that is information for identifying the optical disk 12 (for example, when the optical disk 12 is a CD). 2 stores resume information including TOC (Table Of Contents) information, and in the case of DVD, a disk ID can be used) for each placement unit 221 shown in FIG. Here, title information, chapter information, recording (or recording) time information, and the like of the optical disc 12 are further stored as resume information. The resume information stored in the resume information storage unit 52 is acquired by the reproduction execution unit 47 and discarded by the discard execution unit 46.

  The replacement position time storage unit 53 stores, for each mounting unit 221 shown in FIG. 2, the replacement position time that is measured by the time measuring unit 44 and is the time when the optical disk 12 is mounted at the replaceable position. .

  The discard condition setting unit 41 (corresponding to a part of the discard condition setting means) accepts an operation input from the user via the operation unit 17 and corresponds to the replaceable optical disk 12 based on the accepted operation input. A discard condition indicating whether the resume information to be discarded is discarded when the first condition set in advance is satisfied, or is discarded when the second condition different from the first condition is set in advance is set. To do. Here, the “first condition” is a condition determined by the first determination unit 45, and the “second condition” is a condition determined by the second determination unit 49.

  The reproduction accepting unit 42 (corresponding to a part of the reproduction execution unit) receives an operation input for performing reproduction from the user via the operation unit 17 (for example, pressing of a reproduction button provided on the operation unit 17). Accept.

  The presence / absence determination unit 43 (corresponding to the presence / absence determination unit) is placed at the reproduction position when an operation input for reproduction is accepted by the reproduction acceptance unit 42 (for example, the placement unit in FIG. 3). It is determined whether or not resume information corresponding to one optical disk (mounted on 221a) is stored in the resume information storage unit 52.

  The time measuring unit 44 (corresponding to a time measuring unit) measures an exchange position time that is a time when the optical disk 12 is placed at the exchangeable position. Specifically, the time measuring unit 44 measures the time for which the rotary tray 22 illustrated in FIG. 3 is placed and placed on the placement unit 221c (or the placement unit 221d).

  That is, the time measuring unit 44 is configured such that the open / close button 171 shown in FIG. 1 is pressed and the rotary tray 22 is ejected, and then the open / close button 171 is pressed again and the rotary tray 22 is moved. It measures the time from when it is in the retracted state or when the rotation button 172 shown in FIG.

  The first determination unit 45 (corresponding to the first determination unit) sets the first condition when the replacement position time measured by the time measurement unit 44 is equal to or longer than a predetermined time (for example, 3 seconds) set in advance. It is determined to satisfy. In other words, the first determination unit 45 has, as a first condition, a condition that the exchange position time, which is the time when the optical disk 12 is placed at the exchangeable position, is a predetermined time (for example, 3 seconds) or more (= resume information). Is set to determine whether or not the first condition is satisfied.

  The discard execution unit 46 (corresponding to the discard execution unit) sets a discard condition before the reproduction process is started by the reproduction execution unit 47 when the presence determination unit 43 determines that the resume information is stored. According to the conditions set by the unit 41.

  The reproduction execution unit 47 (corresponding to a part of the reproduction execution means) is placed at a preset reproduction position when an operation input for performing reproduction is received by the reproduction reception unit 42 ( For example, one optical disk (mounted on the mounting portion 221a in FIG. 3) is reproduced. If the resume information corresponding to one optical disc is not discarded by the discard executing unit 46, the playback executing unit 47 performs resume playback and discards the resume information corresponding to one optical disc by the discard executing unit 46. If the resume information is not stored in the resume information storage unit 52, the reproduction process is performed from the beginning. Furthermore, the reproduction execution unit 47 acquires resume information when a stop button or the like provided on the operation unit 17 is pressed during the reproduction and is stopped, and stores the resume information in association with the placement unit 221. This is stored in the unit 52.

  The identification information acquisition unit 48 (corresponding to a part of the identification information acquisition unit) is placed at a reproduction position (for example, placed on the placement unit 221a in FIG. 3) set in advance by the presence / absence determination unit 43. When it is determined that the resume information corresponding to the one optical disc is stored, the disc identification information is read from the one optical disc.

  The second determination unit 49 (corresponding to a second determination unit) determines whether the disc identification information acquired by the identification information acquisition unit 48 does not match the disc identification information stored in the resume information storage unit 52. It is determined that two conditions are satisfied. That is, the second determination unit 49 sets, as the second condition, a condition that the disc identification information acquired by the identification information acquisition unit 48 does not match the disc identification information stored in the resume information storage unit 52 (= resume The condition for using the information as much as possible is set, and it is determined whether or not the second condition is satisfied. Here, the second determination unit 49 determines whether the second condition is satisfied when the first determination unit 45 determines that the replacement position time is equal to or longer than a predetermined time (for example, 3 seconds) set in advance. It is to determine whether or not.

  FIG. 6 is a flowchart showing an example of an optical disc replacement process of the disc player 1 (mainly MPU 4) according to the present invention. First, the time measuring unit 44 determines whether or not the open / close button 171 shown in FIG. 1 has been pressed (S101). If it is determined that the open / close button 171 has not been pressed (NO in S101), the process ends. If it is determined that the open / close button 171 has been pressed (YES in S101), the tray opening / closing motor 28 is driven by the driver IC 142, and the rotary tray 22 is ejected (S103). Then, the replacement position time is measured by the time measuring unit 44 and stored in the replacement position time storage unit 53 for each placement unit 221 shown in FIG. 2 (S105).

  Next, the time measuring unit 44 determines whether or not the rotation button 172 shown in FIG. 1 has been pressed (S107). If it is determined that the rotation button 172 has been pressed (YES in S107), the rotary tray 22 is rotated by 1/5 rotation by the driver IC 142 (S109), the process returns to step S105, and the processes after step S105 are performed. Is repeatedly executed. When it is determined that the rotation button 172 is not pressed (NO in S107), the time measuring unit 44 determines whether or not the open / close button 171 shown in FIG. 1 is pressed (S111). If it is determined that the open / close button 171 has not been pressed (NO in S111), the process returns to step S105, and the processes after step S105 are repeatedly executed. If it is determined that the open / close button 171 has been pressed (NO in S111), the tray opening / closing motor 28 is driven by the driver IC 142, the rotary tray 22 is stored (S113), and the process ends.

  FIG. 7 is a flowchart showing an example of reproduction processing of the disc player 1 (mainly MPU 4) according to the present invention. Here, for the sake of convenience, a case where the discard condition is set in advance by the discard condition setting unit 41 and stored in the discard condition storage unit 51 will be described. First, the reproduction accepting unit 42 determines whether or not an operation input for performing reproduction is accepted (S201). If it is determined that the operation input for performing the reproduction is not accepted (NO in S201), the process is terminated. When it is determined that an operation input for performing reproduction has been received (YES in S201), the discard execution unit 46 determines whether or not the first condition is set by the discard condition storage unit 51. (S203).

  Here, the reproduction process executed when the first condition is set as the discard condition is referred to as “reproduction process A”, and the reproduction process when the second condition is set is referred to as “reproduction process B”. If it is determined that the first condition has been set (YES in S203), the reproduction process A is executed by the reproduction execution unit 47 or the like (S205), and the process ends. When it is determined that the first condition is not set (= the second condition is set) (NO in S203), the reproduction process B is executed by the reproduction execution unit 47 or the like (S207), and the process is performed. Is terminated.

  FIG. 8 is a detailed flowchart showing an example of the reproduction process A executed in step S205 of the flowchart shown in FIG. First, resume information corresponding to one optical disk placed at the reproduction position (for example, placed on the placement unit 221a of FIG. 3) by the presence / absence determination unit 43 is stored in the resume information storage unit 52. It is determined whether or not there is (S301). If it is determined that the resume information is not stored (NO in S301), the process proceeds to step S309. When it is determined that the resume information is stored (YES in S301), the first determination unit 45 sets a predetermined time (here, an exchange position time corresponding to the playback position placement unit 221). It is determined whether or not it is 3 seconds or more (S303).

  If it is determined that it is not longer than 3 seconds (= less than 3 seconds) (NO in S303), the reproduction execution unit 47 performs resume reproduction (S305), and the process proceeds to step S311. If it is determined that it is 3 seconds or more (YES in S303), the discard execution unit 46 discards the resume information stored in the resume information storage unit 52 (S307). When the process in step S307 is completed, or if NO in step S301, a reproduction process is performed from the beginning (S309), and the process proceeds to step S311. When the process of step S305 is completed or when the process of step S309 is completed, the reproduction execution unit 47 performs a resume information acquisition process (S311), and the process is returned.

  FIG. 9 is a detailed flowchart showing an example of the reproduction process B executed in step S207 of the flowchart shown in FIG. First, resume information corresponding to one optical disk placed at the reproduction position (for example, placed on the placement unit 221a of FIG. 3) by the presence / absence determination unit 43 is stored in the resume information storage unit 52. Whether or not there is is determined (S401). If it is determined that the resume information is not stored (NO in S401), the process proceeds to step S411. If it is determined that the resume information is stored (YES in S401), the first determination unit 45 sets a predetermined time (here, the replacement position time corresponding to the playback position placement unit 221). It is determined whether it is 3 seconds or more (S403).

  If it is determined that it is not longer than 3 seconds (= less than 3 seconds) (NO in S403), the reproduction execution unit 47 performs resume reproduction (S405), and the process proceeds to step S413. If it is determined that the time is 3 seconds or longer (YES in S403), the disc identification information is acquired by the identification information acquisition unit 48, and the acquired disc identification information is stored in the resume information storage unit 52 by the second determination unit 49. It is determined whether or not it matches the disc identification information stored in (S407). If it is determined that they match (YES in S407), the playback execution unit 47 performs resume playback (S405), and the process proceeds to step S413.

  If it is determined that they do not match (NO in S407), the discard execution unit 46 discards the resume information stored in the resume information storage unit 52 (S409). When the process in step S409 is completed, or if NO in step S401, a reproduction process is performed from the beginning (S411), and the process proceeds to step S413. When the process of step S405 ends, or when the process of step S411 ends, the reproduction execution unit 47 performs a resume information acquisition process (S413), and the process returns.

  FIG. 10 is a detailed flowchart showing an example of the resume information acquisition process executed in step S311 of the flowchart shown in FIG. 8 and step S413 of the flowchart shown in FIG. First, the playback execution unit 47 determines whether or not a stop button or the like disposed on the operation unit 17 has been pressed and stopped (S501). If it is determined that the playback has not been stopped (NO in S501), the playback execution unit 47 determines whether or not the playback process has ended (S503). If it is determined that the reproduction process has not ended (NO in S503), the process returns to Step S501, and the processes after Step S501 are repeatedly executed.

  If YES in step S501 or YES in step 503, resume information is acquired by the reproduction execution unit 47 (S505), and stored in the resume information storage unit 52 in association with the placement unit 221. S507), the process is returned.

  In this way, resume information including the reproduction position information indicating the reproduction position of the reproduced optical disc 12 and disc identification information which is information for identifying the optical disc is stored in the resume information storage unit 52 for each mounting unit 221. The resume information corresponding to the replaceable optical disc 12 is discarded when the first condition set in advance is satisfied, or is discarded when the second condition different from the first condition set in advance is satisfied. Is set. Then, when an operation input for performing reproduction is received from the user via the operation unit 17 and an operation input for performing reproduction is received, a reproduction position that is set in advance (for example, as shown in FIG. 3). The one optical disk placed on the placing portion 221a is reproduced. In addition, when an operation input for performing playback is accepted, it is determined whether or not resume information corresponding to one optical disc is stored in the resume information storage unit 52, and it is determined that resume information is stored. In this case, the resume information is discarded according to the set condition before the reproduction process is started, so that the resume reproduction can be performed with good convenience.

  That is, setting a discard condition indicating whether the user discards the resume information when the first condition is satisfied, or discards the resume information when the second condition different from the first condition is satisfied. Therefore, the user can select the condition for discarding the resume information from two preset conditions (= first condition and second condition), so that the resume reproduction can be performed with good convenience. It is.

  Further, when the exchange position time, which is the time when the optical disk 12 is placed at the exchangeable position, is measured and the exchange position time is equal to or longer than a predetermined time (here, 3 seconds), the first condition is satisfied. Since it is determined that the condition is satisfied, the resume reproduction can be performed with better convenience.

  That is, the exchange position time, which is the time when the optical disk 12 is placed at the exchangeable position (the placement unit 221c or the placement unit 221d shown in FIG. 3), is measured, and the exchange position time is a predetermined time set in advance. When the time is (here, 3 seconds) or more, the first condition is that the resume information is discarded when the optical disk 12 may be replaced (= the condition for actively discarding the resume information). Therefore, the resume reproduction can be performed more conveniently.

  Further, when it is determined that the resume information corresponding to one optical disk 12 is stored, the disk identification information is read from the one optical disk, and the acquired disk identification information is stored in the resume information storage unit 52. If the disc identification information does not match the disc identification information, it is determined that the second condition is satisfied. Therefore, resume playback can be performed more conveniently.

  That is, when it is determined that the resume information corresponding to one optical disk 12 is stored, the disk identification information is read from the one optical disk 12, and the acquired disk identification information is stored in the resume information storage unit 52. When it does not match the stored disc identification information, it is determined that the second condition is satisfied. Therefore, as the second condition, the disc identification information obtained by reading the disc identification information from one optical disc 12 is the resume information storage unit. If the disc identification information stored in the disc 52 does not match the disc identification information, a condition for discarding the resume information (= a condition for discarding the resume information as much as possible) is set, so that resume playback can be performed more conveniently. It can be done.

  In addition, since the operation input from the user is accepted via the operation unit 17 and the discard condition is set based on the accepted operation input, the user can set the discard condition. Resume playback can be performed with good performance.

The present invention can also be applied to the following forms.
(A) In the present embodiment, the case where the disk changer 2 is a so-called rotary type disk changer has been described. However, other types (for example, a so-called cassette type in which all the disks can be replaced simultaneously) are also used. Good.

  (B) In the present embodiment, the case where the discard condition setting unit 41 sets one discard condition from two conditions (= first condition and second condition) has been described. One discard condition may be set from the above conditions. In this case, convenience can be further improved.

  (C) In the present embodiment, the “first condition” is a condition that the exchange position time, which is the time when the optical disk 12 is placed at the exchangeable position, is a predetermined time (for example, 3 seconds) or more. However, the “first condition” may be a condition that the optical disk 12 is simply placed at the exchangeable position regardless of the exchange position time. In this case, the process is simplified.

  (D) In the present embodiment, the “second condition” is a condition that the disc identification information acquired by the identification information acquisition unit 48 does not match the disc identification information stored in the resume information storage unit 52. Although the case has been described, other conditions (for example, the condition that the title name information of one optical disk 12 placed at the reproduction position does not match the title name information stored in the resume information storage unit 52) The form which is.

  (E) In this embodiment, the MPU 4 includes the discard condition setting unit 41, the reproduction accepting unit 42, the presence / absence determining unit 43, the time measuring unit 44, the first determining unit 45, the discard executing unit 46, the reproduction executing unit 47, and the identification information. Although the case where it functions as the acquisition unit 48 and the second determination unit 49 has been described, at least one functional unit may be realized by hardware such as a circuit.

These are perspective views which show an example of the external appearance of the disc player based on this invention. These are exploded perspective views showing an example of the mechanical configuration of the disk changer. FIG. 5 is a plan view of the disc player in a state where the rotary tray is ejected (= a state where the optical disc can be replaced). These are the block diagrams which show an example of the electrical constitution of a disc player. These are functional block diagrams which show an example of a structure of the principal part in the disc player based on this invention. These are the flowcharts which show an example of the optical disk exchange process of the disk player (mainly MPU) based on this invention. These are the flowcharts which show an example of the reproduction | regeneration processing of the disc player 1 (mainly MPU) which concerns on this invention. These are detailed flowcharts which show an example of the reproduction process A executed in step S205 of the flowchart shown in FIG. These are detailed flowcharts which show an example of the reproduction | regeneration processing B performed in step S207 of the flowchart shown in FIG. These are detailed flowcharts which show an example of the resume information acquisition process performed in step S311 of the flowchart shown in FIG. 8 and step S413 of the flowchart shown in FIG.

Explanation of symbols

1 Disc player (optical disc playback device)
11 Optical pickup (part of identification information acquisition means)
131 RF amplifier (part of identification information acquisition means)
12 optical disc 17 operation unit (part of discard condition setting means, part of reproduction execution means)
2 Disc changer 21 Slide tray 22 Rotary tray 221 Placement section 4 MPU
41 Discard condition setting part (part of discard condition setting means)
42 Reproduction acceptance unit (part of reproduction execution means)
43 Presence / absence determination unit (presence / absence determination means)
44 Time measurement unit (time measurement means)
45 1st determination part (1st determination means)
46 Discard execution section (Discard execution means)
47 Playback execution unit (part of playback execution means)
48 Identification information acquisition unit (part of identification information acquisition means)
49 2nd determination part (2nd determination means)
5 RAM
51 Discard condition storage unit 52 Resume information storage unit (resume information storage means)
53 Exchange position time storage section

Claims (5)

A disc changer having a plurality of placement units on which optical discs are placed and configured to replace at least one optical disc placed on the placement unit. An optical disc playback apparatus for playing back information stored in one optical disc placed at a position,
Resume information storage means for storing resume information including playback position information indicating the playback position of the reproduced optical disc and disc identification information which is information for identifying the optical disc, for each of the above-mentioned placement units;
Whether the resume information corresponding to the replaceable optical disc is discarded when the first condition set in advance is satisfied, or when the second condition different from the first condition set in advance is satisfied, A discard condition setting means for setting a discard condition indicating
Reproduction executing means for reproducing one optical disc placed at a preset reproduction position when an operation input for performing reproduction from the outside is accepted and an operation input for performing reproduction is accepted. When,
Presence / absence determining means for determining whether or not resume information corresponding to the one optical disc is stored in the resume information storage means when an operation input for performing reproduction is received by the reproduction executing means;
When it is determined by the presence / absence determining means that the resume information is stored, the resume information is discarded according to the condition set by the discard condition setting means before the reproduction processing is started by the reproduction executing means. Destruction execution means,
Time measuring means for measuring an exchange position time which is a time when the optical disc is placed at the exchangeable position;
First determination means for determining that the first condition is satisfied when the replacement position time is equal to or longer than a predetermined time set in advance;
An identification information acquisition unit that reads disc identification information from the one optical disc when the presence / absence judgment unit determines that resume information corresponding to the one optical disc is stored;
Second determination means for determining that the second condition is satisfied when the disk identification information acquired by the identification information acquisition means does not match the disk identification information stored in the resume information storage means;
With
The optical disc reproducing apparatus, wherein the discard condition setting means accepts an operation input from the outside and sets the discard condition based on the accepted operation input. A disc changer having a plurality of placement units on which optical discs are placed and configured to replace at least one optical disc placed on the placement unit. An optical disc playback apparatus for playing back information stored in one optical disc placed at a position,
Resume information storage means for storing resume information including playback position information indicating the playback position of the reproduced optical disc and disc identification information which is information for identifying the optical disc, for each of the above-mentioned placement units;
Whether the resume information corresponding to the replaceable optical disc is discarded when the first condition set in advance is satisfied, or when the second condition different from the first condition set in advance is satisfied, A discard condition setting means for setting a discard condition indicating
Reproduction executing means for reproducing one optical disc placed at a preset reproduction position when an operation input for performing reproduction from the outside is accepted and an operation input for performing reproduction is accepted. When,
Presence / absence determining means for determining whether or not resume information corresponding to the one optical disc is stored in the resume information storage means when an operation input for performing reproduction is received by the reproduction executing means;
When it is determined by the presence / absence determining means that the resume information is stored, the resume information is discarded according to the condition set by the discard condition setting means before the reproduction processing is started by the reproduction executing means. Destruction execution means,
An optical disc reproducing apparatus comprising: Time measuring means for measuring an exchange position time which is a time when the optical disc is placed at the exchangeable position;
First determination means for determining that the first condition is satisfied when the replacement position time is equal to or longer than a predetermined time set in advance;
The optical disk reproducing apparatus according to claim 2, further comprising: An identification information acquisition unit that reads disc identification information from the one optical disc when the presence / absence judgment unit determines that resume information corresponding to the one optical disc is stored;
Second determination means for determining that the second condition is satisfied when the disk identification information acquired by the identification information acquisition means does not match the disk identification information stored in the resume information storage means;
The optical disk reproducing apparatus according to claim 2, further comprising:   5. The optical disc according to claim 2, wherein the discard condition setting unit accepts an operation input from the outside, and sets the discard condition based on the accepted operation input. Playback device.

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