JP5653575B2 - Network attached storage - Google Patents

Description

  The present invention relates to a network connection storage.

  A network attached storage (NAS) that includes a hard disk, is connected to a network, and stores data transmitted from a plurality of terminals via the network in a sharable manner has conventionally existed. The NAS is a computer dedicated to a file server that is connected to a LAN (Local Area Network) or the like.

  The network-connected storage includes a hard disk and a CPU (Central Processing Unit) having a network function for controlling the hard disk. In the network connection storage, generally, a CPU operates a file server application on an OS (Operating System).

  In many cases, not only personal computers and workstations but also home televisions, television broadcast recorders, and other AV devices are connected to the network to which the network connection storage is connected. Each terminal connected to the network stores data in the network connection storage, or reads data stored in the network connection storage for reproduction.

  For example, Patent Literatures 1 and 2 exist as prior literature relating to network-connected storage.

2007-317181 2007-317183

  Various terminals are connected to the network to which the network connection storage is connected as described above. Therefore, the data format (compression codec or the like) that can be handled by each terminal may be different for each terminal. For example, recording / reproduction with a DVD recorder is generally performed using a file in the MPEG-2 data format. Also, in a personal computer or a mobile phone, a file in the data format of MPEG-4 or MPEG-4AVC is generally handled.

  Therefore, it is desired that files are stored in a network-connected storage in a plurality of types of data formats on the assumption that they are played back on various terminals.

  Therefore, the present invention is highly convenient in that it can convert and store files of various data formats handled by each terminal connected to the network without performing any extra processing on the transfer-side terminal side of the file to be stored. It aims to provide network attached storage.

To achieve the above object, the network-attached storage according to claim 1 according to the present invention comprises a hard disk, is connected to the network, and can share data transmitted from a plurality of terminals via the network. A network-connected storage for storing, a transcoder for performing a conversion process for converting a file in a first data format transmitted from the terminal into a file in a second data format, and each connected to the network A network controller that acquires information related to the terminal, the information related to the terminal includes information on a data format handled by the terminal, and the network controller obtains a setting content related to the conversion process obtained as a result of the information acquisition. Presented to the operation terminal connected to the network The setting presentation information because, transmitted to the operation terminal, the setting content related to the conversion processing includes data format handled by the terminal, the data format in the settings, input from the operating terminal It can be changed by processing.

  The network-attached storage according to claim 2 is the network-attached storage according to claim 1, wherein the transcoder converts a file of the first data format into a plurality of the second data. A controller is further provided for converting the file into a format file, and sorting and storing the converted second data formation files in different directories defined in the hard disk.

The network-attached storage according to claim 3 is the network-attached storage according to claim 1, wherein a file in a data format that can be played back on the predetermined terminal when a playback request is received on the predetermined terminal. When not present on the hard disk, the transcoder converts a file of a predetermined data format stored in the hard disk into a file of a third data format that can be played back on the predetermined terminal, and A network controller is further provided for transmitting the third data formation file to the predetermined terminal for reproduction processing.

Further, the network-attached storage according to claim 4 is the network-attached storage according to claim 1, wherein the transcoder follows a preset reservation prior to reproduction processing at a predetermined terminal. Then, the file having a predetermined data format stored in the hard disk is converted into a file having a third data format that can be reproduced on the predetermined terminal.

In addition, the network attached storage according to claim 5 is the network attached storage according to claim 1 or 4 , wherein the transcoder performs the first data during an idle period of the network attached storage. The format file is converted into the second data format file, or the predetermined data format file is converted into the third data format file.

The network-attached storage according to claim 6 is the network-attached storage according to claim 1 or 4 , wherein the transcoder is a file of the first data format according to a preset timing. Is converted into the file of the second data format, or the file of the predetermined data format is converted into the file of the third data format.

  The network-connected storage according to claim 1 of the present invention includes a transcoder that performs a conversion process of converting a file in the first data format transmitted from the terminal into a file in the second data format.

Therefore, conversion to files of various data formats handled by each terminal connected to the network can be executed on the file storage side without performing any extra processing on the terminal side. Even if the transfer source terminal shuts down before or after the conversion process starts, the conversion process can be continuously executed on the network-connected storage side.
In addition, the network-attached storage according to claim 1 further includes a network controller that acquires information about the terminal including information on a data format handled by the terminal, and the network controller is obtained as a result of information acquisition. Setting content presentation information for causing the operation terminal connected to the network to present the setting content related to the conversion process is transmitted to the operation terminal.
Therefore, in a predetermined terminal connected to the network, it is possible to confirm the corresponding data format of the terminal connected to the same network.
Further, in the network connection storage according to claim 1, the data format in the setting contents related to the conversion process can be changed by the input process from the operation terminal.
Therefore, highly convenient network connection storage can be provided.

  In the network-attached storage according to claim 2, the transcoder converts one file in the first data format into a plurality of files in the second data format, and forms the second data after conversion. A controller is further provided for storing the files in different directories defined in the hard disk.

  Therefore, it is possible to organize and save files of different codec file formats on the assumption that they are played back by a plurality of terminals.

Further, the network-connected storage according to claim 3 receives the reproduction request on the predetermined terminal, and the transcoder is stored in the hard disk when the data format file that can be reproduced on the predetermined terminal does not exist on the hard disk. The predetermined data format file is converted to a third data format file that can be played back on the predetermined terminal, and the third data formation file is transferred to the predetermined terminal for playback processing on the predetermined terminal. A network controller for transmitting is further provided.

  Therefore, even when a file in a data format that can be played back on the playback terminal side is not stored on the hard disk, a data format that is played back on the terminal on the file storage side without any extra processing on the playback terminal side. Can convert to file. In addition, the network-connected storage can perform so-called real-time transcode playback on the terminal side.

In the network-connected storage according to claim 4 , the transcoder stores a file in a predetermined data format stored in the hard disk in accordance with a preset reservation prior to reproduction processing in a predetermined terminal. The file is converted into a third data format file that can be played back on a predetermined terminal.

  Therefore, the user can create and store a file in a data format that can be played on a predetermined terminal in advance, without requiring any effort, in the middle of playback processing of a desired file.

In the network-attached storage according to claim 5 , the transcoder converts the file of the first data format into a file of the second data format or the predetermined data format during the idle period of the network-attached storage. Is converted to a third data format file.

  Therefore, the transcode can perform the conversion process without imposing a burden on the processing unit of the network connection storage.

In the network-attached storage according to claim 6 , the transcoder converts the file of the first data format into the file of the second data format or the file of the predetermined data format according to a preset timing. Is converted to a third data format file.

  Therefore, it is possible to provide a network connection storage that is highly convenient for the user.

  Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.

<Embodiment>
FIG. 1 is a diagram showing a configuration of a system 100 including a network attached storage (NAS) according to the present embodiment.

  As shown in FIG. 1, in a system 100, a plurality of terminals 1 to 5, 10 are directly connected to a network Na such as a LAN. Here, for each of the terminals 1 to 5 and 10, for example, Ethernet (registered trademark) is defined in the physical layer. In addition, a mobile phone 6 with an AV (Audio Visual) function is connected to the network Na via a network Bluetooth (registered trademark) bridge 5.

  FIG. 2 is a block diagram showing a configuration of the network connection storage 10 according to the present embodiment connected to the network Na.

  As shown in FIG. 2, the network-connected storage 10 includes a CPU 10a, a memory / I / O (input / output) controller 10b, a network controller 10c, a hard disk drive (hereinafter simply referred to as a hard disk) 10d, and a ROM (Read-Only). Memory) / RAM (Random Access Memory) (hereinafter simply referred to as “memory”) 10e and transcoder 10f.

  The network connection storage 10 includes a hard disk 10d, is connected to the network Na, and stores data transmitted from the plurality of terminals 1 to 6 via the network Na so as to be sharable.

  The CPU 10a controls the network connection storage 10 as a whole. The main operations of the CPU 10a include command control to the network controller 10c, grasping the status of the network controller 10c, network operation (file server operation, WEB server operation) based on these, file management of image files, etc., transcoder This is a data conversion operation by command control to 10f.

  The network controller 10c controls network connection with the other terminals 1-5. The hard disk 10d stores (records) files before / after the transcoder. The memory 10e is used when storing a CPU program and constants, used as a program work, and used as a stream buffer before / after transcoding.

  The transcoder 10f performs file conversion processing for converting the data format of the file into a desired data format. In the transcoder 10f, for example, a moving image compression / audio compression method, a compression rate, an image size, and the like are changed. The file conversion process is performed based on CPU command control.

  The network controller 10c, the hard disk 10d, the memory 10e, the transcoder 10f, and the CPU 10a are connected by a memory / I / O controller 10b. Further, data is stored at specific addresses in the memory 10e under the control of the CPU 10a.

  Next, the operation of the network connection storage 10 according to the present embodiment will be described. In the present specification, a file in a predetermined data format transferred from the terminals 1 to 6 to the network connection storage 10 for recording is referred to as a first data format file. In the network-connected storage 10, a file in a data format that is converted into the recording is referred to as a second data format file. A file in a data format that is converted in the network connection storage 10 for playback processing of the terminals 1 to 6 is referred to as a third data format file.

<Initial setting>
First, a predetermined setting processing operation for the network connection storage 10 will be described with reference to FIG.

  When the network-connected storage 10 is powered on (step S1), the first boot code is loaded on the CPU 10a (step S2). Thereafter, the OS is loaded from a specific area of the hard disk, the file server application is activated, and the network controller 10c is activated (step S3).

  The file server application is configured to operate the network connection storage 10 as a network storage. Note that the terminals 1 to 6 accessible by the security setting can read / write to the network connection storage 10 via the network Na.

  Next, the network connection storage 10 negotiates with each of the terminals 1 to 6 connected to the network Na. Specifically, the network controller 10c disposed in the network-connected storage 10 is information about each terminal connected to the network (type of TV and the like, and information on the data format handled by the terminal (compression codec and file format). Etc.) (step S4). Thereafter, the CPU 10a disposed in the network connection storage 10 activates the setting WEB application (step S5).

  On the other hand, in the operation terminal 1 that performs the setting process of the network connection storage 10 from the outside, the WEB browser is activated (step S11), and thereafter, between the network connection storage 10 and the operation terminal 1 as shown in FIG. An interactive setting process is performed.

  Specifically, the network controller 10c transmits setting content presentation information obtained as a result of each piece of information acquired in step S4 to the operation terminal. Then, the setting content presentation information is presented on the display screen of the operation terminal 1. Here, the setting content presentation information is various setting contents related to data format conversion processing to be described later. FIG. 5 shows an example of the presented setting content presentation information. The table illustrated in FIG. 5 includes each terminal name detected by the network-connected storage 10 and a data format (for example, a recording profile and a reproduction profile) that can be processed by each terminal. The table may include the IP address of each terminal.

  Here, when the user-desired setting is added to or changed from the table illustrated in FIG. 5 by the input processing on the operation terminal 1 (“Yes” in step S12 and step S6), the setting addition / The contents of the change are reflected in the network connection storage 10. That is, the setting content is reset (change including addition) by the input process on the operation terminal 1 (step S6).

  Further, the network connection storage 10 may create a table illustrated in FIG. 6 as the setting content presentation information as a result of the negotiation with each of the terminals 1 to 6 and display the table on the display screen of the operation terminal 1. In this case, on the operation terminal 1 side, setting contents can be added / changed to the table, and the setting contents added / changed are reflected in the network connection storage 10. Note that the table illustrated in FIG. 6 includes each terminal name, a directory in which data handled by the terminal is stored, and a data format stored in each directory. By the input operation of the operation terminal 1, for example, the directory structure illustrated in FIG. 7 can be set.

  When setting processing of various setting contents (including various setting contents including the above) regarding data format conversion processing between the network-connected storage 10 and the operation terminal 1 is completed by input processing from the operation terminal 1 in an interactive format, The contents are set in the network connection storage 10 (step S7). Here, if there is an addition / change of the setting contents, the contents after the addition / change are set in the network connection storage 10. On the other hand, if there is no particular addition / change of setting contents on the operation terminal 1 side, various setting contents initially displayed on the display screen of the operation terminal 1 are set in the network connection storage 10.

<Storage (memory) processing>
After the setting process of the various setting contents, as shown in FIG. 8, the network recorder (DVD recorder or the like) 3 that can access the network connection storage 10 stores a file (for example, a first data format) MPEG2 data stream).

  After the recording, the transcoder 10f converts the first data format file transmitted from the network recorder 3 into at least one second data format file.

  Specifically, the CPU 10a determines in which data format the file in the first data format is to be converted in accordance with a preset conversion instruction, and transmits the determined content to the transcoder 10f.

  For example, FIG. 6 represents a conversion instruction for an MPEG2 data stream. In the “presence / absence of storage” item of FIG. 6, it is assumed that “circle” is checked in the items of the network recorder 3, the television 4, and the mobile phone 6, and the check content is set. Then, the CPU 10a grasps the contents of the check, and in accordance with the instruction of the CPU 10a, the transcoder 10f converts the MPEG2 data stream (first data format file) into HD-MPEG4AVC-12 Mbps (second data format file). ) And QVGA-MPEG4AVC-384 Kbps (second data format file).

  After the conversion processing, the CPU 10a sorts and stores the converted second data formation files in different directories defined in the hard disk 10d (see, for example, FIG. 7). For example, in the case of the setting contents illustrated in FIG. 6, the CPU 10a stores the converted HD-MPEG4AVC-12 Mbps format file in the directory “HD_AVC”, and the converted QVGA-MPEG4AVC-384 Kbps format file. Are stored in the directory “QVGA_AVC”.

  After the conversion process, the first data format file (MPEG2) may be moved to another predetermined directory or may be deleted.

  In addition, as described above, the process of converting the file of the first data format into the file of the second data format may be performed after the recording of the file of the first data format as described above. You may carry out.

  For example, a file in the first data format is transferred to the network-connected storage without requiring any special processing / judgment in the terminals 1 to 6 on the transfer side. Thereafter, the transcoder 10f may convert the first data format file into a predetermined second data format file during the idle period of the network connection storage 10. Specifically, the network-attached storage 10 prioritizes the function as a file server, and executes a transcoder task during a period of low priority (idle period) as a task of the CPU 10a. As an idle period, for example, a night when the user is sleeping can be considered.

  Also, unlike the above, the transcoder 10f converts the first data format file into predetermined various second data format files in accordance with the timing preset in the network connection storage 10 via the operation terminal or the like. You may do it. When the timing is set, the network-attached storage 10 executes the transcoder task with priority over the function as a file server according to the timing.

<Reproduction processing>
Next, the reproduction operation of the file stored in the network connection storage 10 in the terminals 1 to 6 will be described with reference to the flowchart shown in FIG. In the description here, the terminal 1 and the operation terminal 1 are the same terminal.

  As described above, the file having the same content content as the file transmitted from the network recorder 3 and a file in the second data format that can be handled by the television 4 (file in HD-MPEG4AVC-12 Mbps format) Are stored in the directory “HD_AVC” of the hard disk 10d. Now, in this situation, as shown in FIG. 10, the network-attached storage 10 is transmitted from the television 4 with the access right on the network Na and has a desired content file (transmitted from the network recorder 3 and recorded. Suppose that a reproduction request signal, which is a reproduction request for (file), is received (step S51).

  Then, the CPU 10a stores the content file pointed out by the reproduction request signal in the directory (HD_AVC) in which the data format file that can be handled by the television 4 is stored. It is determined whether or not it exists (step S52).

  Here, as described above, the directory “HD_AVC” of the hard disk 10d stores the second data format file (file of HD-MPEG4AVC-12 Mbps format) that has the same content as the desired content. (“Yes” in step S52). Therefore, the CPU 10a reads from the directory “HD_AVC” a second data format file (HD-MPEG4AVC-12 Mbps format file) that has the same content as the desired content (step S53). Then, the network controller 10c transmits the read file to the television 4 (step S53). Note that the television 4 receives the file and performs reproduction processing of a file having a desired content based on the file.

  On the other hand, it is a file having the same content as the file transmitted (recorded) from the network recorder 3 described above, and a data format file (SD-MPEG2-4 Mbps format) that can be handled by the terminal (PC) 1 ) Is not stored in the directory “HD_MPEG2” of the hard disk 10d. In this situation, as shown in FIG. 11, the network-attached storage 10 is a file with a desired content transmitted from the terminal 1 having the access right on the network Na (a file transmitted from the network recorder 3 and recorded). ) Is received (step S51).

  Then, the CPU 10a determines whether there is a file in the data format that can be played back by the terminal 1 in the directory (HD_MPEG2) in which the file that can be handled by the terminal 1 is stored. It is determined whether or not (step S52).

  Here, as described above, the directory “HD_MPEG2” of the hard disk 10d does not store a file in a data format (SD-MPEG2-4 Mbps format file) having the same content as the desired content (step “No” in S52). Therefore, the network controller 10c transmits the message information shown in FIG. 12 to the operation terminal 1 so as to be presented to the operation terminal 1 (step S54).

  Here, the message information shown in FIG. 12 indicates that “there is a file in another data format with the same content (a file in a data format that cannot be handled by the terminal 1)” and “the other data format. “Confirming the necessity of so-called real-time transcode playback in which a file is transmitted to the terminal 1 side while being transcoded and is played back by the terminal 1” is included.

  Assume that real-time transcode reproduction is not permitted by an input operation on the operation terminal 1 (“No” in step S55). In this case, the non-permission signal is transmitted to the network connection storage 10, and the reproduction operation of the file having the desired content is completed (step S56).

  On the other hand, it is assumed that real-time transcode reproduction is permitted by an input operation on the operation terminal 1 (“OK” in step S55). In this case, the permission signal is transmitted to the network connection storage 10. Then, on the network connection storage 10 side, the CPU 10a searches for a reproducible candidate file. In order to present the search result to the operation terminal 1, the network controller 10c transmits the searched reproducible candidate file to the operation terminal 1 (step S57). The list of playable candidate files is displayed on the display screen of the operation terminal 1.

  Here, the reproducible candidate file has the same content as the desired content, and the second data format after conversion (data other than the data format that can be handled by the terminal 1) stored in the hard disk 10d. Format) file. In the example described with reference to FIG. 6 above, as playable candidate files, files in the HD-MPEG4AVC-12 Mbps format stored in the directory “HD_AVC”, and QVGA-MPEG4AVC-384 Kbps format stored in the directory “QVGA_AVC” are used. File exists. When presenting the playable candidate file to the operation terminal 1, the file may be displayed in an order suitable for transcoding of the SD-MPEG2-4Mbps file.

  Next, the user selects a file in a desired data format from the presented reproducible candidate files through an input operation on the operation terminal 1 (step S58). Information regarding the selection is transmitted to the network connection storage 10. Then, the CPU 10a in the network-connected storage 10 determines whether or not real-time transcode reproduction is possible using the selected data format file (step S59).

  It is assumed that real-time transcode reproduction is possible (“Yes” in step S59). In this case, the CPU 10a reads the file in the selected data format, and the transcoder 10f reads the file in the SD-MPEG2-4 Mbps format that is a data format that can be played back by the terminal 1 (third data The network controller 10c transmits the converted data stream to the terminal 1 as needed (step S60). Then, on the terminal 1 side, reproduction processing is executed as needed from the received data stream (real-time transcode reproduction).

  In contrast, it is determined that real-time transcode reproduction is impossible (“impossible” in step S59). In this case, the network controller 10c transmits the message information shown in FIG. 13 to the operation terminal 1 so as to be presented to the operation terminal 1 (step S61).

  Here, the message information shown in FIG. 13 includes “a time required for transcoding a file in a data format selected for reproduction” and “whether or not to perform transcoding. To request ". Although not described in FIG. 13, the message may include that “real-time transcoder playback is not possible using the selected data format”.

  It is assumed that transcoding is not permitted by an input operation on the operation terminal 1 (“No” in step S62). In this case, the non-permission signal is transmitted to the network connection storage 10, and the reproduction operation of the file having the desired content is finished (step S63).

  In contrast, it is assumed that transcode reproduction is permitted by an input operation on the operation terminal 1 (“Yes” in step S62). In this case, the permission signal is transmitted to the network connection storage 10. Then, on the network-connected storage 10 side, the CPU 10a reads the file in the selected data format, and the transcoder 10f reads the file in the SD-MPEG2-4 Mbps format (data format that can be played back on the terminal 1). The file is converted into a third data format file (step S64). When the transcoding process is completed, the network controller 10c transmits the converted data streams to the terminal 1 in a lump (step S65). Then, on the terminal 1 side, reproduction processing of the received data stream is executed.

  In the above description, a case has been described in which a file in a data format that can be reproduced by the terminal that has transmitted the reproduction request is not stored in the hard disk 10d when the reproduction request is made. However, the transcoder 10f can reproduce the file of the predetermined second data format stored in the hard disk 10d on the predetermined terminal 1-6 before the reproduction processing on the predetermined terminal 1-6. It may be converted into a third data format file.

  For example, in the description of the recording process, when converting a file of the first data format to a file of the second data format, the number and type of second data formation after conversion from the viewpoint of securing the capacity of the hard disk 10d, etc. May be limited. This is a case where all of the storage presence / absence columns in FIG. 6 are not circled. However, in this case, there is a case where the real-time transcode reproduction is not desired or the time required for transcoding is disliked.

  Therefore, the user can reserve in the network connection storage 10 to operate a predetermined operation terminal connected to the network Na and convert a necessary data formation file in advance.

  For example, suppose that the user desires to play a file of desired content on the terminal 1 in the future. In addition, it is assumed that a file in a data format (SD-MPEG2-4 Mbps format file) that is a file related to the desired content and can be handled by the terminal 1 is not stored in the hard disk 10d. Further, it is assumed that a file relating to the desired content and having a data format other than the data format that can be handled by the terminal 1 (for example, a file in HD-MPEG4AVC-12 Mbps format) is stored in the hard disk 10d.

  In this case, an HD-MPEG4AVC-12 Mbps format file (second data format file) is converted to an SD-MPEG2-4 Mbps format file (third data) by an operation on an operation terminal connected to the network Na. A schedule for conversion to a file in the format is reserved and set for the network-connected storage 10. That is, by the reservation / setting, the file to be converted is specified and the data format of the conversion destination is also specified.

  Through the setting process, the transcoder 10f arranged in the network-connected storage 10 converts the second data format file into the third data format file according to the timing specified by the preset reservation. Convert. When the time for conversion is not set in the reservation / setting, the transcoder 10f transfers the second data format file during the idle period of the network-connected storage 10 to the second data format. You may make it convert into the file of three data formats.

  The conditions for specifying the conversion source file when converting to a file in a data format reproducible on the specific terminals 1 to 6 before reproduction on the specific terminals 1 to 6 are as follows. There is. For example, among the files in the hard disk 10d, the file with the oldest creation time (or new one) is preferentially specified as the conversion source file. Also, a file that has never been converted for reproduction is preferentially identified as the conversion source file. In addition, a file created in the hard disk 10d is preferentially used as the conversion source file before a predetermined time (or after a predetermined time or at the same time) from the creation time of the file that has been converted last. Identify.

  As described above, the network-connected storage 10 according to the present embodiment includes the transcoder 10f that performs the conversion process of converting the first data format file transmitted from the terminal into the second data format file. ing.

  Therefore, conversion to files of various data formats handled by the terminals 1 to 6 connected to the network can be executed on the network connection storage 10 side without performing any extra processing on the terminals 1 to 6 side. Even if the transfer source terminals 1 to 6 are shut down before or after the conversion process is started, the conversion process can be continuously executed on the network-connected storage side 10.

  Further, in the network-attached storage 10 according to the present embodiment, the transcoder converts one first data format file into a plurality of second data format files. The CPU 10a further includes a CPU 10a for sorting and storing the converted second data formation files in different directories defined in the hard disk 10d.

  Therefore, it is possible to organize and save files of different codec file formats on the assumption that they are reproduced by a plurality of terminals 1 to 6.

  In addition, the network connection storage 10 according to the present embodiment further includes a network controller 10c that acquires information about the terminal. Then, the network controller 10c transmits, to the operation terminal 1, setting content presentation information for causing the operation terminal 1 connected to the network Na to present the setting content related to the conversion process obtained as a result of information acquisition.

  Therefore, in the operation terminal 1 connected to the network Na, it is possible to check the corresponding data format of the terminals 1 to 6 connected to the same network.

  Further, in the network connection storage 10 according to the present embodiment, the setting content related to the conversion process is set by the input process from the operation terminal 1. Therefore, it is possible to provide a highly convenient network connection storage 10.

  Also, the network-connected storage 10 according to the present embodiment receives a playback request at a predetermined terminal, and when there is no data format file that can be played back at the predetermined terminal on the hard disk 10d, the transcoder 10f Is converted to a third data format file that can be played back on a predetermined terminal. Then, the network controller 10c transmits a third data formation file to the predetermined terminals 1 to 6 for reproduction processing in the predetermined terminals 1 to 6.

  Therefore, even when a file in a data format that can be played back on the playback terminals 1 to 6 is not stored in the hard disk 10d, the network connection storage side does not perform any extra processing on the playback terminals 1 to 6 side. Conversion to a data format file to be played back by the terminals 1 to 6 can be executed. The network-connected storage 10 can also perform so-called real-time transcode playback on the terminals 1 to 6 side.

  Also, in the network-attached storage 10 according to the present embodiment, the transcoder 10f has a predetermined stored in the hard disk 10d in accordance with a preset reservation prior to the reproduction process in the predetermined terminals 1-6. The first and second data format files are converted into a third data format file that can be played back on the predetermined terminals 1 to 6.

  Therefore, the user can create and store a file in a data format that can be reproduced by the predetermined terminals 1 to 6 in advance, without requiring any effort, in the middle of the reproduction process of the desired file.

  In the network-attached storage 10 according to the present embodiment, the transcoder 10f converts the first data format file into the second data-format file during the idle period of the network-attached storage 10, or a predetermined data The data format file is converted to a third data format file.

  Therefore, the transcode 10f can perform the conversion process without imposing a burden on the CPU 10a of the network connection storage 10.

  Also, in the network-attached storage 10 according to the present embodiment, the transcoder 10f converts the first data format file into the second data format file according to a preset timing, or a predetermined data format. Is converted to a third data format file.

  Therefore, it is possible to provide the network connection storage 10 that is highly convenient for the user.

  The network-connected storage 10 may be capable of USB (Universal Serial Bus) connection or LAN connection.

It is a figure which shows the mode of the network where the network connection storage which concerns on this invention is connected. It is a block diagram which shows the internal structure of the network connection storage which concerns on this invention. It is a figure which shows the flow of operation | movement of the setting process of the network connection storage which concerns on this invention. It is a figure for demonstrating the operation | movement of the setting process of the network connection storage which concerns on this invention. It is a figure which illustrates the setting content displayed on an operation terminal. It is a figure which illustrates the setting content displayed on an operation terminal. It is a figure which illustrates the directory structure in a hard disk. It is a figure for demonstrating the operation | movement of the video recording process of the network connection storage which concerns on this invention. It is a figure which shows the flow of operation | movement of the reproduction | regeneration processing of the network connection storage which concerns on this invention. It is a figure for demonstrating the operation | movement of the reproduction | regeneration processing of the network connection storage which concerns on this invention. It is a figure for demonstrating the operation | movement of the reproduction | regeneration processing of the network connection storage which concerns on this invention. It is a figure which illustrates the message displayed on an operation terminal. It is a figure which illustrates the message displayed on an operation terminal.

Explanation of symbols

10 Network Attached Storage 10a CPU
10b Memory / I / O controller 10c Network controller 10d Hard disk 10e Memory (ROM / RAM)
10f transcoder

Claims (6)

A network-connected storage comprising a hard disk, connected to a network, and storing data transmitted from a plurality of terminals via the network in a sharable manner,
A transcoder that performs a conversion process for converting a file in the first data format transmitted from the terminal into a file in the second data format;
A network controller that acquires information about each of the terminals connected to the network, the information about the terminal includes information on a data format handled by the terminal,
The network controller
The setting content presentation information for causing the operation terminal connected to the network to present the setting content regarding the conversion process obtained as a result of the information acquisition is transmitted to the operation terminal,
The setting content related to the conversion process includes a data format handled by the terminal, and the data format in the setting content is:
It can be changed by input processing from the operation terminal.
Network-attached storage characterized by that. The transcoder is
One file of the first data format is converted into a plurality of files of the second data format,
Each of the converted second data formation files is further sorted and stored in different directories defined in the hard disk, and further includes a controller.
The network-attached storage according to claim 1. When the reproduction request is received at the predetermined terminal and a file in a data format that can be reproduced at the predetermined terminal does not exist on the hard disk, the transcoder
A file of a predetermined data format stored in the hard disk is converted into a file of a third data format that can be played back on the predetermined terminal;
A network controller for transmitting the third data formation file to the predetermined terminal for reproduction processing in the predetermined terminal;
The network-attached storage according to claim 1. The transcoder is
Prior to playback processing at a predetermined terminal, a file of a predetermined data format stored in the hard disk is replayed at a third data format that can be played back at the predetermined terminal in accordance with a preset reservation. Convert to
The network-attached storage according to claim 1. The transcoder is
During the idle period of the network-attached storage, the first data format file is converted to the second data format file, or the predetermined data format file is converted to the third data format file. To
Network attached storage according to 請 Motomeko 4 you wherein a. The transcoder is
According to a preset timing, the first data format file is converted to the second data format file, or the predetermined data format file is converted to the third data format file.
Network attached storage according to 請 Motomeko 4 you wherein a.

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