JP2012015621A - Content recording and reproducing device and content management method - Google Patents

Abstract

When content is automatically distributed to a folder, and there is a folder created outside the rules, the content is prevented from being erroneously distributed to the folder.
A management information changing unit that changes management information of a folder to which a content belongs, when recording a new content on a recording medium 109, a content name created based on the title name of the content for each folder Identifies whether or not it is a folder, and changes the management information so that the folder name belongs to the folder whose name partially or completely matches the title name of the new content among the folders identified as the content name folder To do.
[Selection] Figure 1

Description

  The present invention relates to a content recording / playback apparatus and content management method for recording content such as a digital broadcast program.

  In digital broadcasting, an electronic program guide called EPG (Electric Program Guide) is standardly used. EPG data can be acquired by receiving a broadcast, and is used as a program guide, as well as program search and recorded program management information. However, when the number of recorded programs increases, it takes time for the user to select a program to be played back, and in order to improve this, a technique for automatically creating and distributing folders has been proposed.

  For example, Patent Document 1 discloses an imaging apparatus that sorts and records captured images for each shooting date. Further, Patent Document 2 discloses a recording / reproducing apparatus that stores a program to be recorded and a program that has already been recorded in the same folder when the program names include the same character string.

JP 2001-54041 A JP 2008-11432 A

  In the conventional content distribution method, the distribution destination is determined based on a condition that matches (partially matches) the folder name using content additional information or the like. For this reason, when there is a folder created with a unique name by the user, there is a problem that content having the same name is automatically distributed even if there is no relationship with the folder.

  For example, in the rule that a folder “World Discovery” is created from a common part of the content names “World Discovery 1” and “World Discovery 2”, the content “World Discovery 5” is a folder “World Discovery”. are categorized. On the other hand, it is assumed that a folder named “Daddy” is created for the purpose of saving only the content recorded by the user (for example, Dad). When the above rule is applied, content with the name “5 days of daddy and daughter” is distributed to the folder of “daddy” even if it is not recorded by the user (daddy), resulting in inconvenience. In other words, if a rule is uniformly applied to all folders, it becomes inconvenient because it becomes impossible to create a user's own folder that deviates from the rule.

  An object of the present invention is to prevent content from being assigned to a folder by mistake when a folder created outside the rules exists.

  In order to achieve the above object, the present invention is a content recording / reproducing apparatus for classifying input content into folders and recording / reproducing the information on a recording medium, a folder name reading unit for reading the folder name of the folder, A title name reading unit for reading the name and a management information changing unit for changing the management information of the folder to which the content belongs are provided. When recording new content on a recording medium, the management information changing unit identifies whether the folder is a content name folder created based on the title name of the content, and is identified as a content name folder. The management information is changed so that the folder name belongs to a folder whose name partially or entirely matches the title name of the new content.

  The present invention also relates to a content management method for classifying input contents into folders and recording / reproducing them on a recording medium. When new contents are recorded on a recording medium, the title name of the contents is read out for each folder. Identifies whether or not the content name folder is created based on the content title name, and among the folders identified as the content name folder, the folder name is part or all of the new content title name Are searched, and the management information of the folder is changed so that the new contents belong to the searched folder.

  According to the present invention, since each folder for classifying content is identified in advance as to whether or not the folder is a folder created based on the content name, when a new content is recorded, the user Has the effect of preventing unintended distribution to folders.

The block diagram which shows one Example of the content recording / reproducing apparatus which concerns on this invention. The figure which shows the folder recognition sequence in a present Example. The figure which shows the content addition sequence in a present Example. The figure which shows the structural example of the folder by a conventional system for a comparison. The figure which shows the structural example of the folder to which the system of a present Example is applied.

  FIG. 1 is a block diagram showing an embodiment of a content recording / playback apparatus according to the present invention. In this example, the case of a digital television 100 that receives a digital broadcast and records program content is shown. The receiving unit 101 receives content from a broadcast or a network. The channel selection unit 102 extracts a target stream from the received streams, and corresponds to, for example, a demultiplexer. The user interface unit 103 instructs viewing / recording / playback of content. The content is displayed on a display device (not shown) via the user interface unit 103. The recording / playback unit 104 performs a recording operation such as reserved recording and a playback operation for selecting and playing back content from the recorded content. The recording / playback unit 104 also performs control such as reading / writing a stream to / from the recording medium 109 and reading / writing metadata.

  The metadata operation unit 105 performs general data management including reading of metadata from the recording medium 109 and change of management information such as information on belonging to a folder. The folder name reading unit 106 reads a folder name from the recording medium 109. The title name reading unit 107 reads the title name of the content from the recording medium 109. The management information changing unit 108 changes management information such as which content belongs to which folder. In addition, in this structure, although 106-108 are divided into each, it does not necessarily need to be this structure. The recording medium 109 records a stream that is a content body and content metadata (folder information, title information, etc.). The recording medium 109 may include a removable medium and may include a recording medium access function.

  FIG. 2 is a diagram showing a folder recognition sequence in the present embodiment. In the folder recognition sequence, an operation of identifying a creation rule for each folder existing on the recording medium is performed. That is, each folder is a folder created based on a content name (hereinafter referred to as a content name folder), or a folder that is not related to a content name created by the user (hereinafter referred to as a non-content folder). Content name folder). Note that this sequence may be performed any time before the content is written to the medium. For example, this processing may be performed for all folders after startup, or when writing content to a medium, folder candidates for writing content may be extracted and performed only for that folder. As a method of extracting candidates, for example, a folder having a folder name that matches part or all of the content name may be extracted.

  The flow of this sequence will be described. When the process is started, a current folder is set (S201). The current folder refers to a folder that is used as a target when performing a file operation or the like. All folders in the medium may be sequentially targeted, and extracted candidate folders may be sequentially targeted. First, the folder name of the current folder is read (S202). The object to be read is a folder name or folder attribute information. Next, the content name of each content belonging to the current folder is read out (S203). The object to be read is a content name obtained from a file name, attribute information attached to the content, or the like.

  The folder name read in step S202 is compared with each content name read in step S203, and it is determined whether the folder name matches all content names (whether there is a mismatched content) (S204). The determination may be whether the folder name is included in all the content names. The match determination for each content name is, for example, when the folder name is 5 characters and the first 5 characters of the content name match, it is determined that there is a match with the folder name. However, if the folder name is 5 characters and the first 4 characters of the content name match, the folder name may be generated from the first 4 characters of the content name and determined to match, or the folder name It may be determined that the content names do not match. In this way, the determination condition when the folder name is not completely included in the content name is set separately. The coincidence determination method is not limited to the above method. For example, fluctuations in notation such as “va” and “ba” that have a plurality of notation methods although they are almost the same sound may be determined as the same character. Further, the character string object to be determined may be subjected to morphological analysis, and the matching determination may be performed using a character string from which a particle is omitted. Further, when determining a match, it is possible to use a match rate such as how many characters are matched instead of a complete match, and to determine a match when the match rate is a certain value or more.

  Further, in S204, it is determined whether or not there is a mismatch between the read contents. Here, “there is a mismatch” means that there is at least one content name that does not match the folder name, but only when there is a predetermined number rather than one. May exist. "

  If there is no mismatch, it is determined that the folder is created from the content name (content name folder) (S205). If there is a mismatch, it is determined that the folder is not related to the content name (non-content name folder) (S206). The above determination results are recorded in the metadata operation unit 105 (S207). The process ends here.

  FIG. 3 is a diagram showing a content addition sequence in the present embodiment. In the content addition sequence, an operation for determining a folder for storing newly recorded content is performed. For this determination, the result of the folder recognition sequence performed in FIG. 2 is used.

  When the process is started, content to be additionally recorded is input (S301), and the content name (metadata) of the content is acquired (S302). The content name (metadata) can be acquired by the metadata operation unit 105 in the process in which the recording / playback unit 104 writes the metadata to the recording medium 109. The content name may be the title name of the content, but any other metadata indicating the content content can be used. The acquisition timing may be any time before recording on the medium. For example, in the case of broadcasting, data acquired immediately after the start of recording may be used, or data acquired immediately before the end of recording may be used. Moreover, the data acquired from the network may be sufficient.

  Next, referring to the result of the folder recognition sequence stored in the metadata operation unit 105, one folder is selected from folders created based on the content name (content name folder) (S303). . Then, it is determined whether or not the folder name of the selected folder matches the content name acquired in S302 (S304). In the coincidence determination, the determination method described in S204 can be similarly applied, such as whether or not the folder name is included in the content name.

  As a result of the determination, if there is a matching folder, the content input this time is determined to belong to the folder (S305). If there is no matching folder as a result of the determination, it is determined whether there is a remaining content name folder (S306). If there are remaining folders, the process returns to S303 and the above steps are repeated to search for matching folders. If there is no matching folder for all the content name folders, it is determined to belong to the uncategorized folder (S307).

  Information about the folder to which the content belongs may be recorded by modifying the folder management information of the recording medium. That is, folder management information or content affiliation information may be changed so that the input content belongs to the corresponding folder or uncategorized folder.

  By automatically determining the content destination folder in this way, the input content is not mistakenly assigned to a folder (non-content name folder) unrelated to the content name. Here, the content belongs to one folder. However, if there are a plurality of folders that match the content name, the content can belong to a plurality of folders.

Hereinafter, how content is classified by folder will be described with a specific example.
FIG. 4 shows a configuration example of a folder according to a conventional method for comparison. Here, three folders 401 to 403 are provided. The folder 401 “world discovery” is a folder (content name folder) created based on the content name, and is created from the common part “world discovery” of the titles of the three belonging contents. The folder 402 “papa” is a folder (non-content name folder) uniquely created by the user, and the titles of the three contents to which the folder belongs do not have a common part. A folder 403 is a content folder that does not belong to any of the above folders. In the case where content 410 with a title of a new broadcast program “5 days of daddy and daughter” is added to such a folder structure, in the conventional rule, the affiliation destination is determined based on the matching determination of the title name. As a result, the folder 402 having the common part “dad” is classified. However, the content “5 days of daddy and daughter” is not necessarily the content of the content intended by the user (daddy).

  FIG. 5 shows a configuration example of a folder to which the method of this embodiment is applied. The three folders 501 to 503 are the same as the folders 401 to 403 in FIG. However, in this configuration, in the metadata operation unit 105, the folder 501 is a folder (content name folder) created based on the content name “world discovery”, and the folder 502 is a folder (unrelated to the content name). (Non-content name folder) is stored. When the new content 510 “five days of daddy and daughter” is added here, the folder 501 “world discovery” that is the content name folder is selected as a candidate for the belonging folder. However, since the name does not match that of the folder 501, it does not belong to the folder 501. On the other hand, since the folder 502 “papa” is a non-content name folder, it is not selected as an affiliation destination folder candidate, so that name matching is not determined. As a result, there is no folder having the same name, and the content is classified into the unclassified folder of the folder 503.

  As described above, in this embodiment, for each folder for classifying content, whether or not the folder is created based on the content name is identified in advance. , It is possible to prevent content from being distributed to folders not intended by the user.

100 ... Digital TV,
101 ... receiving unit,
102 ... Channel selection department,
103 ... User interface part,
104 ... recording / playback unit,
105 ... metadata operation unit,
106: Folder name reading unit,
107 ... Title name reading unit,
108 ... management information change part,
109: Recording medium.

Claims (6)

In a content recording / reproducing apparatus that classifies input content into folders and records / reproduces them on a recording medium,
A folder name reading unit for reading the folder name of the folder;
A title name reading unit for reading the title name of the content;
It has a management information change part that changes the management information of the folder to which the content belongs,
When the new information is recorded on the recording medium, the management information changing unit identifies whether the folder is a content name folder created based on the title name of the content, and the content name folder The content recording / reproducing apparatus is characterized in that the management information is changed so that the folder name belongs to a folder whose part or all matches the title name of the new content. The content recording / playback apparatus according to claim 1,
When the new information is recorded on the recording medium, the management information changing unit includes a folder name that is partly or entirely the title name of the new content among the folders identified as the content name folder. A content recording / reproducing apparatus, wherein when there is no matching folder, the management information is changed to a form belonging to a folder indicating that the folder is not classified. The content recording / playback apparatus according to claim 1,
When the new information is recorded on the recording medium, the management information changing unit matches a part or all of the folder name with the title name of the new content among the folders not identified as the content name folder. A content recording / reproducing apparatus, wherein management information is changed so as to belong to a folder indicating that the folder is not classified even when the folder to be recorded exists. In the content management method when the input content is classified into folders and recorded and played back on a recording medium,
When recording new content on the recording medium, read the title name of the content,
Identify whether each folder is a content name folder created from the title name of the content,
Search the folder identified as the content name folder for a folder whose folder name partially or entirely matches the title name of the new content,
A content management method comprising: changing folder management information so that the new content belongs to the searched folder. The content management method according to claim 4,
In the folder identified as the content name folder, if there is no folder whose folder name partially or completely matches the title name of the new content, it belongs to the folder indicating that it is not classified. A content management method characterized by changing management information of a folder. The content management method according to claim 4,
Among the folders not identified as the content name folder, even if there is a folder whose folder name partially or entirely matches the title name of the new content, the folder belongs to the folder indicating that it is not classified The content management method characterized by changing the management information.

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