JP2004259347A - Player and contents reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact player wherein it is not necessary to copy contents stored in an information storage medium into another information storage medium and a plurality of recording/reproducing device are not necessary for copying the contents. <P>SOLUTION: An information storage medium 2 is constituted of: at least one core layer; at least two clad layers arranged to interpose the core layer; and at least one diffraction grating layer disposed in a boundary between the core layer and the clad layer or in the core layer. A player 3 is provided with: a driving section 4 having the function of reproducing contents stored in the diffraction grating layer of the information storage medium 2 and designed to access the contents stored in the information storage medium 2; a storage memory section 5; and a control section 6 for controlling the driving of the driving section 4 and storage memory section 5 and the reproduction of the contents stored in the information storage medium 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a player for reproducing content stored in an information storage medium and a method for reproducing the content.
[0002]
[Prior art]
2. Description of the Related Art In recent years, content, which is a set of text, music, images, video, a database, or a combination thereof, expressed as digital data or analog data, is stored in an information storage medium, and the content is reproduced from the information storage medium. Player systems are becoming popular.
[0003]
Here, a conventional technique will be described by taking recording and reproduction of music content as an example.
[0004]
As an information storage medium and a player in a conventional player system, for example, a CD-ROM medium and a recorder / player for a CD (http://www.sony.jp/products/Models/Consumer/PA/PCD. html), MD media and MD recorder / player (http://www.walkman.sony.co.jp/prod/md/index.html), flash memory such as SD card, and MP3 recorder / player using these ( http://panasonic.jp/audio/p#gene/web/portable.html).
[0005]
Typically, music content is provided to end users on CD-ROM media. For this reason, when the end user plays music outdoors, the CD recorder / player has a disadvantage that it is inconvenient to carry because of its large size.
[0006]
To solve this, the end user copies the content stored on the CD-ROM medium to a flash memory such as an MD medium or an SD card directly or via a personal computer (hereinafter simply referred to as a PC). I take the technique to do. By doing so, it is possible to play music outdoors by a small player such as an MD recorder / player or an MP3 recorder / player, and to edit the content according to the end user's preference (playback and playback of only the favorite music). (Order change, shortening of playback time, repeat playback, etc.) are also possible.
[0007]
[Non-patent document 1]
http: // www. sony. jp / products / Models / Consumer / PA / PCD. html
[0008]
[Non-patent document 2]
http: // www. walkman. sony. co. jp / prod / md / index. html
[0009]
[Non-Patent Document 3]
http: // panasonic. jp / audio / p # gene / web / portable. html
[0010]
[Problems to be solved by the invention]
However, in order to realize the above-described method, it is necessary to copy the content to another information storage medium, which is cumbersome, and requires a plurality of recording / reproducing devices and PCs. There were drawbacks, such as the high cost of purchasing.
[0011]
Also, the widespread use of the above justifies the idea that contents can be copied, and this has encouraged unauthorized copying of music contents.
[0012]
In view of the above problems, an object of the present invention is to reduce the size of a content stored in an information storage medium without having to copy the content to another information storage medium and requiring a plurality of recording / reproducing devices to copy the content. And a method of reproducing the content of the player.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides at least one core layer, at least two clad layers disposed so as to sandwich the core layer, and a boundary between the core layer and the clad layer or a core layer. A player for reproducing content stored in said diffraction grating layer of an information storage medium comprising at least one provided diffraction grating layer, wherein said drive accesses content stored in said information storage medium. A player comprising: a storage unit; a storage memory unit; and a control unit that controls driving of the drive unit and the storage memory unit and controls reproduction of content stored in the information storage medium.
[0014]
According to the player of the present invention, the drive of the drive unit and the storage memory unit is controlled by the control unit, and the reproduction of the content stored in the information storage medium is controlled.
[0015]
Further, according to the present invention, in the player having the above-described configuration, the drive unit includes at least an optical head that makes light incident on a diffraction grating layer of the information storage medium, and a photodetector that detects light emitted from the diffraction grating layer. Is proposed.
[0016]
According to the player of the present invention, light is incident on the diffraction grating layer of the information storage medium from the optical head, and light emitted from the diffraction grating layer is detected by the photodetector. Reading of the content stored in the layer is performed.
[0017]
Further, according to the present invention, in the player having the above-described configuration, the drive unit is disposed between the information storage medium mounted on the drive unit and the photodetector, and includes a diffraction grating layer of the information storage medium. A player provided with an aperture mask for separating a plurality of emitted reproduction lights is proposed.
[0018]
According to the player of the present invention, since the light emitted from the diffraction grating layer is separated by the aperture mask, multiplexed information can be stored and reproduced, so that a large-capacity information storage medium can be used. .
[0019]
Further, according to the present invention, in the player having the above-described configuration, the drive unit is disposed between the information storage medium mounted on the drive unit and the photodetector, and includes a diffraction grating layer of the information storage medium. A player provided with an optical path controller for changing the optical path of emitted reproduction light is proposed.
[0020]
According to the player of the present invention, since the optical path of the reproduction light emitted from the diffraction grating layer is changed by the optical path controller, when reading the content from the information storage medium, the photodetector is not moved, or In addition, since the moving distance of the photodetector can be reduced, the content reading time can be reduced, and the content reading speed can be increased.
[0021]
Further, according to the present invention, in the player having the above-described configuration, the control unit copies all the content stored in the information storage medium into the storage memory unit and stores the content therein, and stores the content in the storage memory unit. And a means for playing back the content being played.
[0022]
According to the player of the present invention, all the contents stored in the information storage medium are copied and stored in the storage memory unit by the control unit, and the contents stored in the storage memory unit are reproduced. .
[0023]
Further, according to the present invention, in the player having the above configuration, the control unit is configured to store a predetermined content stored in the information storage medium in the storage memory unit, and is stored in the storage memory unit. A player having means for reproducing content is proposed.
[0024]
According to the player of the present invention, the control unit stores the predetermined content stored in the information storage medium in the storage memory unit, and reproduces the content stored in the storage memory unit.
[0025]
Also, the present invention, in the player having the above configuration, comprises a content designating unit for designating, to the control unit, a content to be stored in the storage memory unit from contents stored in the information storage medium by the user. Suggest which player is.
[0026]
According to the player of the present invention, the content specified by the user is input to the control unit via the content specifying unit.
[0027]
Further, according to the present invention, in the player having the above-described configuration, the control unit stores, in the storage memory unit, reproduction designation information for designating a content to be reproduced, and the reproduction unit stores the reproduction designation information in the storage memory unit. Means for playing back content stored in an information storage medium mounted on the drive unit based on designated information.
[0028]
According to the player of the present invention, reproduction control information for specifying content to be reproduced by the control unit is stored in the storage memory unit, and the information storage medium mounted on the drive unit based on the reproduction specification information Is played back. Thereby, by setting the reproduction designation information arbitrarily, the content to be reproduced can be selected, and the content itself is reproduced while being stored in the information storage medium. Can be reduced.
[0029]
Further, the present invention proposes a player having the above-mentioned configuration, wherein the player comprises a content designating unit for designating, to the control unit, a content to be reproduced from contents stored in the information storage medium. I do.
[0030]
According to the player of the present invention, the content to be reproduced by the user can be specified to the control unit via the content specifying means.
[0031]
Further, the present invention provides a drive unit for accessing content stored in an information storage medium, a storage memory unit, and a control unit for controlling the drive of the drive unit and the storage memory unit and controlling the reproduction of the content. And at least one core layer, at least two clad layers disposed so as to sandwich the core layer, and at least one diffraction grating layer provided at a boundary between the core layers and the clad layer or in the core layer. A method of reproducing the content in a player that reproduces the content stored in the diffraction grating layer of the information storage medium, wherein the control unit controls the content stored in the information storage medium or At least one of the information specifying the content is recorded in the recording memory unit, and the During playback of Ntsu, the control unit proposes a content playback method for playing contents based on information recorded in the recording memory unit.
[0032]
According to the content reproducing method of the present invention, the control unit records at least one of the content stored in the information storage medium and the information designating the content in the recording memory unit, At the time of reproduction, the content is reproduced by the control unit based on the information recorded in the recording memory unit.
[0033]
Further, according to the present invention, in the content reproducing method having the above structure, the control unit may copy all the content stored in the information storage medium into the storage memory unit and store the copied content in the storage memory unit. A content reproduction method for reproducing the content stored in the storage device is proposed.
[0034]
According to the content reproducing method of the present invention, all the contents stored in the information storage medium are copied and stored in the storage memory unit by the control unit, and then stored in the storage memory unit. The content is played.
[0035]
Further, according to the present invention, in the content reproduction method having the above-described configuration, the control unit stores the predetermined content stored in the information storage medium in the storage memory unit, and then stores the predetermined content in the storage memory unit. We propose a content playback method for playing back content.
[0036]
According to the content reproducing method of the present invention, after the predetermined content stored in the information storage medium is stored in the storage memory unit by the control unit, the content stored in the storage memory unit is reproduced. Is done.
[0037]
Further, according to the present invention, in the content reproducing method having the above-described configuration, the control unit obtains content specification information input by a user, and reproduces the content stored in the information storage medium based on the content specification information. A content reproduction method for storing the specified content in the storage memory unit is proposed.
[0038]
According to the content reproducing method of the present invention, the control unit acquires the content designation information input by the user, and, based on the content designation information, specifies the designated content in the content stored in the information storage medium. The stored content is stored in the storage memory unit.
[0039]
Further, according to the present invention, in the content reproduction method having the above configuration, the control unit acquires reproduction designation information input by a user, stores the reproduction designation information in the storage memory unit, and stores the reproduction designation information in the storage memory unit. A content playback method for playing back content stored in an information storage medium mounted on the drive unit based on the stored playback designation information is proposed.
[0040]
According to the content reproduction method of the present invention, the reproduction designation information input by the user is acquired by the control unit, and the acquired reproduction designation information is stored in the storage memory unit by the control unit. The content stored in the information storage medium mounted on the drive unit is reproduced based on the reproduction designation information stored in the storage unit.
[0041]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0042]
FIG. 1 is a configuration diagram showing a player system according to an embodiment of the present invention. Referring to FIG. 1, reference numeral 1 denotes a player system, which comprises at least an information storage medium 2 and a player 3, and the player 3 comprises at least a drive unit 4, a recording memory unit 5, and a control unit 6.
[0043]
The information storage medium 2 has a function of storing text, music, images, video, a database expressed by digital data or analog data, or a content that is a set of information obtained by combining them.
[0044]
In the present embodiment, a laminated hologram ROM, which will be described later, is used as the information storage medium 2. However, any of a read-only type (ROM), a write-once type (WO), and a rewritable type (RW) may be used as the information storage medium 2. Good.
[0045]
The information storage medium 2 may be either volatile or non-volatile, but is advantageously non-volatile because power supply for data retention is not required. Detailed embodiments will be described later in <Embodiments of Memory> and <Embodiments of Stacked Hologram ROM>. For the purpose of distributing contents, it is advantageous in that a medium exchangeable type in which the information storage medium 2 is detachable from the player 3 and a ROM type are inexpensive.
[0046]
The drive unit 4 has a function of reproducing information stored in the information storage medium 2. Each drive corresponding to the information storage medium 2 is an example. Detailed embodiments will be described later in <Embodiment of Memory> and <Embodiment of Stacked Hologram ROM>.
[0047]
The recording memory unit 5 has a function of recording information. The recording memory unit 5 may be either a write-once type (WO) or a rewritable type (RW). Further, the recording memory unit 5 may be either volatile or non-volatile, but is advantageously non-volatile because power supply for data retention is not required. Further, the recording memory unit 5 has the same effect whether the medium is exchangeable or the medium is non-exchangeable, as described above. A detailed embodiment will be described later in <Embodiment of Memory>.
[0048]
The control unit 6 is mainly composed of a well-known CPU, operates according to a preset program, and exchanges and manages each of the information storage medium 2, the drive unit 4, and the recording memory unit 5 or mutual information commands. The player system 1 has a function of performing various operations such as control, processing, etc., for realizing various operations such as content reproduction or content editing. Further, the control unit 6 includes a memory for recording the contents of control as needed. Note that the recording memory unit 5 may also serve this function. Further, the control function of all the constituent elements of the player system 1 may be centrally provided in the control section 6, or one or a plurality of constituent elements may have respective constituent sections each having a control function.
[0049]
The constituent elements of the player system 1 are not shown, but other than the above, for example, an operation unit, a display unit, an audio output unit, a video output unit, a power supply unit, an interface unit, and an audio input unit which are described below. By having some, some, some, or some of the functions of these components, effects corresponding to each function and component can be obtained.
[0050]
The operation unit has a function of operating the player system 1, and includes, for example, buttons, switches, and the like, and also includes ancillary circuits. Providing the operation unit has an effect that the player system 1 can be operated without connecting another operation device.
[0051]
The display section has a function of displaying the state of the player system 1. For example, a display or the like is given as an example, and an accompanying circuit is also included as a component. Providing the display unit has an effect that the state of the player system 1 can be checked without connecting another display device.
[0052]
The audio output unit has a function of outputting audio. For example, a speaker, an earphone, or the like is given as an example, and an accompanying circuit is also included as a component. By providing the audio output unit, it is possible to output the audio reproduced from the player system 1 without connecting another audio output device.
[0053]
The video output unit has a function of outputting a video. For example, a display or the like is given as an example, and an accompanying circuit is also included as a component. By providing the video output unit, it is possible to output a video reproduced from the player system 1 without connecting another video output device.
[0054]
The power supply unit has a function of supplying power to the player system 1. For example, a dry battery, a rechargeable secondary battery, a solar battery, an alternating current (AC) power supply, an in-vehicle direct current (DC) power supply, and the like are given as examples, and circuits accompanying these are also included in the components. Providing the power supply unit has an effect that power can be supplied to the player system 1 without connecting another power supply device.
[0055]
The interface (IF) unit has a function of exchanging signals with an external device such as a PC or another recording / reproducing device, and inputting / outputting audio and video. For example, USB (Universal Serial Bus), PCMCIA (Personal Computer Memory Card International Association), IEEE 1394 (iLINK, DV, FireWire), various flash memories (compact flash, registered memory, SD card, SD card, SD card) Media) IF, micro HDD drive IF, various digital signal interfaces such as IDE, SCSI, FC, RS232C, etc., various analog interfaces, audio and video input / output terminals, and the like. include.
[0056]
In addition, by providing the interface unit, there is an effect that signals such as information and commands can be exchanged between the player system 1 and other devices, and audio signals and video signals can be input and output.
[0057]
The voice input unit has a function of inputting voice. For example, a microphone or the like is given as an example, and a circuit accompanying the microphone is also included in the components. Further, the presence of the voice input unit has an effect that voice can be input to the player system 1 without connecting another voice input unit. Note that, if voice input can be performed by a microphone or the like regardless of whether a voice input unit is built in or externally connected, it is possible to add an index, a comment, or the like by voice when editing content.
[0058]
It should be noted that one or more components of the player system 1 in the present embodiment may be provided, and the same effect is obtained in any case.
[0059]
<Example of memory>
Examples of the information storage medium 2, the drive unit 4, and the recording memory unit 5 are a read-only type (ROM (Read Only Memory)), a write-once type (WO (Write Once)), and a rewritable type (RW (: ReWritable)).
[0060]
-Reproduction only type (ROM (: Read Only Memory))
An optical memory such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), a laminated hologram ROM, and a mask ROM.
[0061]
Write-once type (WO (: Write Once)), rewritable type (RW (: ReWritable))
Non-volatile memories include CD-Rs (Compact Disk Recordable), CD-RWs (Compact Disk Rewriteable), DVD-Rs (Digital Versatile Disk Recordable), DVD-RWs (Digital Versatable DVDs, Digital versatile DRAMs). Optical memory such as + R and + RW, hologram memory, magneto-optical memory such as MO and MD, magnetic tape, magnetic memory such as FD and HDD, compact flash (registered trademark), SD, memory stick, multi media card, smart media, etc. Flash memory, various user programmable ROMs, MRAM (Magnetoresistive Random Ac) utilizing resistance change of magnetic material ess Memory), RRAM (Resistance Random Access Memory), using a ferroelectric FeRAM (Ferroelectric Random Access Memory), OUM using a resistance change of the phase change material (Ovonic Unified Memory) and the like.
[0062]
Examples of the volatile memory include an SRAM (Static Random Access Memory) and a DRAM (Dynamic Random Access Memory).
[0063]
<Example of laminated hologram ROM>
An embodiment in which the laminated hologram ROM medium 7 is used as the information storage medium 2 and the drive unit 4 is a drive 11 for a laminated hologram ROM will be described below.
[0064]
FIG. 2 is a sectional view showing an embodiment of the laminated hologram ROM medium 7. In FIG. 2, the laminated hologram ROM medium 7 includes one core layer 8, two clad layers 9 arranged so as to sandwich the core layer 8, and a boundary between the core layers 8 and the clad layer 9 or the core layer 8. And one diffraction grating layer 10 provided therein.
[0065]
FIG. 3 is a sectional view showing another embodiment of the laminated hologram ROM medium 7. In FIG. 3, the laminated hologram ROM medium 7 includes a plurality of core layers 8, a plurality of clad layers 9 arranged so as to sandwich each core layer 8, and a core layer 8 and a clad layer 9 for each core layer 8. And a plurality of diffraction grating layers 10 provided in the boundary or in the core layer 8.
[0066]
The laminated hologram ROM medium 7 shown in FIG. 3 is more advantageous than the laminated hologram ROM medium 7 shown in FIG. 2 in that the capacity can be increased.
[0067]
In the laminated hologram ROM medium 7 shown in FIGS. 2 and 3, information (content) is stored in the diffraction grating layer 10, and when incident light 14 is incident on the core layer 8, the upper surface ( And the reproduction light 15 is emitted to the lower surface and the lower surface).
[0068]
As a method of entering the incident light into the core layer 8, a method of making the light incident from the end face of the laminated hologram ROM medium 7, a method of providing an optical coupling portion in each core layer 8 and making the light incident from the upper surface or the lower surface of the laminated hologram ROM medium 7 There is a method in which a mirror surface is provided on each core layer 8 and the light is incident from the upper surface or the lower surface of the laminated hologram ROM medium 7, and the same effect is exerted. However, the method of irradiating from the end face is advantageous in that it is not necessary to provide an optical coupling portion or a mirror surface in the laminated hologram ROM medium 7.
[0069]
FIG. 4 is a diagram showing a configuration of a drive unit applicable to the laminated hologram ROM medium 7. In the figure, reference numeral 11 denotes a drive unit, which comprises at least an optical head 12 and a photodetector 13. The number of the optical heads 12 and the number of the photodetectors 13 may be one or more, and the same effects are respectively obtained.
[0070]
The optical head 12 has a function of making incident light 14 incident on a desired core layer 8 of the laminated hologram ROM medium 7. For example, the optical head 12 includes a laser light source that is a source of the incident light 14, a condensing lens having a function of condensing the incident light 14 on the core layer 8, and the incident light 14 at a desired angle on the core layer 8. It is composed of an actuator having a function of causing the light to enter.
[0071]
The photodetector 13 has a function of detecting the reproduction light 15 emitted from the laminated hologram ROM medium 7, and has a moving mechanism as required. For example, examples of the photodetector 13 include a two-dimensional photodetector such as a CCD (Charge Coupled Diode), a CMOS (Complementary Metal Oxide Semiconductor), a one-dimensional photodetector such as a line sensor, and a photodiode. Since the reproduction light 15 is emitted from the laminated hologram ROM medium 7 as two-dimensional data, there is an effect that the one-dimensional photodetector and the two-dimensional photodetector can detect this in a shorter time.
[0072]
Other components of the laminated hologram ROM drive 11 include, for example, an aperture mask and an optical path controller described below.
[0073]
The aperture mask is arranged between the laminated hologram ROM medium 7 and the photodetector 13, and separates and reproduces a plurality of reproduction lights 15 emitted from each core layer 8 when information is multiplexly stored in each core layer 8. It has the function to do. As a result, information can be multiplexly stored and reproduced, so that there is an effect that the capacity can be increased. For example, the aperture mask includes a liquid crystal element, which electrically changes the aperture position, and which moves a mask having a fixed aperture position. Here, the former, that is, the one that electrically changes the opening position, is advantageous because mechanical driving is not required and occurrence of mechanical failure and the like can be reduced.
[0074]
The optical path controller is arranged between the laminated hologram ROM medium 7 and the photodetector 13 and has a function of changing and controlling the emission optical path of the reproduction light 15. As an example of the optical path controller, for example, a lens, a prism, and the like are given, and each of them has the same effect. In addition, for example, by condensing the reproduction light 15, there are the effects that a small and inexpensive photodetector 13 can be used, the moving distance of the photodetector 13 can be reduced, and the speed can be increased.
[0075]
Next, an operation when reading the content from the laminated hologram ROM medium 7 will be described.
[0076]
When reading the content from the laminated hologram ROM medium 7, when the incident light 14 is incident on a desired core layer 8 of the laminated hologram ROM medium 7 by the optical head 12, the reproduction light 15 is emitted to, for example, the upper surface of the laminated hologram ROM medium 7. . When this is detected by the photodetector 13, the information (content) stored in the laminated hologram ROM medium 7 can be reproduced.
[0077]
As described above, the laminated hologram ROM medium 7 can be miniaturized and increased in capacity, and the configuration and structure of the laminated hologram ROM drive 11 are simple, so that the size can be reduced. Therefore, by using these for the storage medium 2 and the drive unit 4, the player system 1 can be downsized and the capacity can be increased, and compared with the case where another storage medium or drive unit is used. Is particularly advantageous.
[0078]
<Example of content reproduction method>
One embodiment of a content reproducing method using the player system 1 will be described below. In the present embodiment, a case where the laminated hologram ROM medium 7 is used as the information storage medium 2, the laminated hologram ROM drive 11 is used as the drive unit 4, and any of the flash memories described above is used as the recording memory unit 5. This will be described as an example.
[0079]
In this case, the information storage medium 2 and the player 3 are downsized as described above. Further, it is assumed that music content is stored in the information storage medium 2, for example.
[0080]
By loading the information storage medium 2 into the drive unit 4 and playing it back, music content can be played back on a small player that is convenient to carry without copying the music content to another information storage medium. .
[0081]
Next, an operation of editing and an operation of reproducing content stored in the information storage medium 2 will be described. Here, the editing means, for example, selecting only favorite music, changing the order of reproduction, setting to shorten the reproduction time, setting to enable repeat reproduction, and the like.
[0082]
There are the following three operations for editing and reproducing the content.
[0083]
(1) The content stored in the information storage medium 2 is edited by the control unit 6 and recorded (copied) in the recording memory unit 5 as the edited content. Further, at the time of reproduction, the content recorded in the recording memory unit 5 is reproduced.
[0084]
(2) The content stored in the information storage medium 2 is directly recorded (copied) in the recording memory unit 5. Further, at the time of reproduction, the content from the recording memory unit 5 is edited by the editing function of the control unit 6, and the edited content is reproduced.
[0085]
(3) The content stored in the information storage medium 2 is left as it is, and only the editing command is recorded in the recording memory unit 5 by the control unit 6. Further, at the time of reproduction, the control unit 6 reads the content from the information storage medium 2 according to the editing command of the recording memory unit 5, edits the content, and reproduces the edited content.
[0086]
A method of reproducing content by using one or a plurality of the methods (1), (2), and (3) above is required, and the same effect is required. The methods (1) and (2) have an advantage that the contents of a plurality of different information storage media 2 can be stored in the recording memory unit 5. Further, when the method (3) is used, there is an advantage that no time is required for copying and the recording capacity of the recording memory unit 5 can be small.
[0087]
Note that the recording memory unit 5 may also serve as the memory of the control unit 6. In any case, there is an effect that reproduction or editing reproduction can be performed by a small-sized player which is convenient to carry. Further, there is an effect that a plurality of recording / reproducing devices are not required for copying contents. The editing of the content may be performed in the player system 1 as described above, or may be performed via another device such as a PC.
[0088]
When the laminated hologram ROM medium 7 is used as the information storage medium 2, the memory area of the laminated hologram ROM medium 7 is configured in block units, and data can be handled in block units. For example, data stored in each layer of the laminated hologram ROM medium 7 is set as one or a plurality of blocks. Taking the case where the content is music data as an example, for example, it can be set so that each block corresponds to one music piece of the music content.
[0089]
By setting the memory area in block units as described above, the start position and end position of each content can be physically and logically clarified, so that rewinding, reverse playback, repeat, skip, etc. are executed. In this case, there is an advantage that the access speed can be increased.
[0090]
When the laminated hologram ROM medium 7 is used as the information storage medium 2 and the drive unit 4 is a drive unit 11 corresponding to the laminated hologram ROM medium 7, the memory used for the recording memory unit 5 also has a memory area in block units. What can be configured is desirable.
[0091]
By doing so, in any of the above cases (1), (2), and (3), it is possible to increase the access speed when performing rewinding, reverse playback, repeat, skip, etc. To play.
[0092]
In contrast, a CD-ROM or DVD-ROM, which is an information storage medium used for conventional content distribution, reproduces content linearly in the circumferential direction of a disc, and stores information in sector units as memory areas. Since it is a storage medium, the start position and end position of each content are not physically and logically clarified as described above, and it is necessary to read each sector every time. Therefore, when performing rewinding, reverse reproduction, repeat, skip, etc., there is a disadvantage that it takes time to access.
[0093]
Next, a configuration of a specific example of the appearance of the player 3 will be described with reference to FIGS.
[0094]
The arrangement relationship between the information storage medium 2 and its drive unit 4 and the recording memory unit 5 may be, for example, one shown in FIGS.
[0095]
Here, the above-described laminated hologram ROM medium 7 is used as the information storage medium 2, and the drive unit 11 corresponding to the laminated hologram ROM medium 7 is used as the drive unit 4. In each drawing, the audio output terminal 22 is a part of an audio output unit (not shown), and is, for example, an earphone terminal.
[0096]
The player 3A shown in FIG. 5 has a storage medium 2 and its drive unit 4 arranged on the left side of a rectangular parallelepiped casing 21 and the recording memory unit 5 arranged on the right side of the casing 21. The housing 21 is provided with an audio output terminal 22, a display unit 23, and an operation unit 24.
[0097]
The player 3B shown in FIG. 6 has a storage medium 2 and its drive unit 4 provided on an upper surface of a housing 21 and a recording memory unit 5 arranged on a lower surface of the housing 21. The body 21 is provided with an audio output terminal 22, a display unit 23, and an operation unit 24.
[0098]
A player 3C shown in FIG. 7 has a storage medium 2, a drive unit 4 thereof, and a recording memory unit 5 both arranged on the left side or the right side of a housing 21, and the housing 21 has an audio output terminal. 22, a display unit 23 and an operation unit 24 are provided.
[0099]
A player 3D shown in FIG. 8 has a storage medium 2, a drive unit 4 thereof, and a recording memory unit 5 both arranged on the upper surface or the lower surface of a housing. , A display unit 23 and an operation unit 24 are provided.
[0100]
Note that the positions of the information storage medium 2 and its drive unit 4 and recording memory unit 5 may be interchanged. Further, the positions of the information storage medium 2 and its drive unit 4 and recording memory unit 5 may be arranged vertically on the respective sides, in the thickness direction of the housing 21, on the left or right, or diagonally up and down. Alternatively, they may be arranged diagonally left and right.
[0101]
Further, in the embodiments shown in FIGS. 5 to 8 described above, the recording memory section 5 is illustrated assuming that the medium is replaceable, that is, the recording memory section 5 is detachable from the housing 21. These may be replaced with a non-commutable medium.
[0102]
When the recording memory unit 5 is a non-medium exchangeable type, it is not necessary to take out the recording memory unit 5 from the housing 21, so that the recording memory unit 5 may not necessarily be disposed on the side surface of the housing 21 as described above.
[0103]
Further, the audio output terminal 22, the display unit 23, the operation unit 24, and the like are appropriately arranged on the front surface, the side surface, and the back surface of the housing 21.
[0104]
【The invention's effect】
As described above, according to the present invention, it is not necessary to copy the content stored in the information storage medium to another information storage medium, and to reproduce or edit the content with a small player that is convenient to carry. Can be played. Further, the present invention has an extremely excellent effect that a plurality of recording / reproducing devices are not required for copying contents.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a player system according to an embodiment of the present invention.
FIG. 2 is a sectional view showing an example of a laminated hologram ROM medium according to an embodiment of the present invention.
FIG. 3 is a sectional view showing another example of the laminated hologram ROM medium according to the embodiment of the present invention.
FIG. 4 is a diagram showing a configuration of a drive unit applicable to a laminated hologram ROM medium according to an embodiment of the present invention.
FIG. 5 is a configuration diagram showing a specific example of an overview of a player according to an embodiment of the present invention.
FIG. 6 is a configuration diagram showing a specific example of an overview of a player according to an embodiment of the present invention.
FIG. 7 is a configuration diagram showing a specific example of an overview of a player according to an embodiment of the present invention.
FIG. 8 is a configuration diagram showing a specific example of an overview of a player according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Player system, 2 ... Information storage medium, 3, 3A, 3B, 3C, 3D ... Player, 4 ... Drive part, 5 ... Recording memory part, 6 ... Control part, 7 ... Laminated hologram ROM medium, 8 ... Core layer , 9 ... clad layer, 10 ... diffraction grating layer, 11 ... drive for laminated hologram ROM, 12 ... optical head, 13 ... photodetector, 14 ... incident light, 15 ... reproduction light, 21 ... housing, 22 ... audio output Terminals, 23: display unit, 24: operation unit.

Claims (14)

Consisting of at least one core layer, at least two cladding layers disposed so as to sandwich the core layer, and at least one diffraction grating layer provided at a boundary between the core layers and the cladding layer or in the core layer. A player for reproducing the content stored in the diffraction grating layer of the information storage medium to be performed,
A drive unit for accessing content stored in the information storage medium,
A storage memory unit;
A player comprising: a control unit that controls driving of the drive unit and the storage memory unit and controls reproduction of content stored in the information storage medium. 2. The drive unit according to claim 1, wherein the drive unit includes at least an optical head for entering light into a diffraction grating layer of the information storage medium and a photodetector for detecting light emitted from the diffraction grating layer. Player. The drive unit includes an aperture mask disposed between the information storage medium mounted on the drive unit and the photodetector and separating a plurality of reproduction lights emitted from a diffraction grating layer of the information storage medium. 3. The player according to claim 2, wherein The drive unit is an optical path controller that is disposed between the information storage medium mounted on the drive unit and the photodetector and changes an optical path of reproduction light emitted from a diffraction grating layer of the information storage medium. 3. The player according to claim 2, wherein the player is provided. The control unit includes:
Means for copying and storing all contents stored in the information storage medium in the storage memory unit,
2. The player according to claim 1, further comprising: means for reproducing content stored in the storage memory unit. The control unit includes:
Means for storing predetermined content stored in the information storage medium in the storage memory unit;
2. The player according to claim 1, further comprising: means for reproducing content stored in the storage memory unit. 7. The apparatus according to claim 6, further comprising: a content designating unit that designates, to the control unit, a content to be stored in the storage memory unit from contents stored in the information storage medium. Player. The control unit includes:
Means for causing the storage memory unit to store reproduction designation information for designating content to be reproduced,
2. The apparatus according to claim 1, further comprising: means for reproducing content stored in an information storage medium mounted on the drive unit based on reproduction designation information stored in the storage memory unit. Player. 9. The player according to claim 8, further comprising: a content designating unit for designating, to the control unit, a content to be reproduced by a user from contents stored in the information storage medium. A drive unit for accessing content stored in the information storage medium, a storage memory unit, and a control unit for controlling the drive of the drive unit and the storage memory unit and controlling the reproduction of the content; Information composed of a core layer, at least two cladding layers arranged so as to sandwich the core layer, and at least one diffraction grating layer provided at a boundary between the core layers and the cladding layer or in the core layer. A method of reproducing the content in a player that reproduces the content stored in the diffraction grating layer of a storage medium,
The control unit records at least one of the content stored in the information storage medium or information designating the content in the recording memory unit,
The content reproducing method, wherein the control unit reproduces the content based on information recorded in the recording memory unit when reproducing the content. The control unit reproduces the content stored in the storage memory unit after copying and storing all the content stored in the information storage medium in the storage memory unit. Item 11. The content reproduction method according to Item 10. 11. The method according to claim 10, wherein the control unit reproduces the content stored in the storage memory unit after storing the predetermined content stored in the information storage medium in the storage memory unit. Content playback method described. The control unit acquires content designation information input by a user, and stores the designated content in the content stored in the information storage medium in the storage memory unit based on the content designation information. 11. The content reproducing method according to claim 10, wherein: The control unit acquires reproduction designation information input by a user, stores the reproduction designation information in the storage memory unit, and mounts the reproduction designation information on the drive unit based on the reproduction designation information stored in the storage memory unit. The content reproducing method according to claim 10, wherein the content stored in the information storage medium is reproduced.

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