JP4755926B2 - Terminal device and content receiving method - Google Patents

Description

  The present invention relates to a terminal device and a content receiving method for receiving content such as audio data, image data, and video data distributed from a distribution system, and more particularly to a terminal device for receiving content based on a content list received from a distribution system and The present invention relates to a content receiving method.

  In recent years, a network environment such as the Internet has been improved, and content such as audio data, image data, and video data is often provided to user-owned terminal devices via the network. It has been published.

  Therefore, how to provide content suitable for the user's preference and the browsing environment of the terminal device from among a large number of content published on the network has become a problem. And browsing environment information are registered, and a technique for selecting a content to be provided via a network and changing a provision form based on the registered preference information and browsing environment information has been proposed (for example, see Patent Document 1).

However, in the prior art, in order for the terminal device to receive content suitable for the browsing environment of the terminal device, it is necessary to register the browsing environment information in the distribution source, and the desired content is distributed to a plurality of distribution sources. If it is open to the public, browsing environment information has to be registered at each distribution source, and there is a problem that the procedure becomes complicated.
JP 2002-183199 A

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a terminal device capable of receiving content suitable for a browsing environment without registering the browsing environment information in a distribution source, and It is in providing a content receiving method.

In order to solve the above problems, the present invention has the following configuration.
The terminal device of the present invention is a terminal device that receives content via a network, and includes a content list in which addresses on the network of the content are described in a meta language that uses tags to denote elements and attributes. The address is described in the content list by receiving the receiving means, the condition storage means for storing the data amount condition of the content set and inputted by the user as a download condition, and analyzing the meta-language of the content list A data amount determination unit that determines a data amount of the content that has been determined and determines whether or not the download condition is satisfied; and the content that is determined to satisfy the download condition by the data amount determination unit, Recognize by analyzing list meta-language A content receiving unit that receives via the network based on the address, characterized by comprising a content recording means for recording the content received by the content reception unit.

Furthermore, in the terminal device according to the present invention, the data amount determination unit is configured to analyze the content that is determined to be incompatible with the download condition because the data amount of the content is unknown even if the meta-language of the content list is analyzed. The data amount of the content is determined by communication based on the address, and it is determined again whether the download condition is satisfied .

Furthermore, in the terminal apparatus of the present invention, the data amount determination means, by the communication speed between said network, characterized in that makes changing the data volume of conditions in the download condition.

The content receiving method of the present invention is a content receiving method for receiving content via a network and recording the received content in a content recording means, and downloading the content data amount condition set and input by a user By receiving a content list in which addresses on the network of the content are described by a meta language that stores the conditions and uses tags to mean elements and attributes, and analyzing the meta language of the content list, A data amount of the content in which the address is described in the content list is determined to determine whether or not the download condition is satisfied, and the content determined to be compatible with the download condition is determined as a meta of the content list. Recognize by analyzing language On the basis of the address received via the networks, characterized by recording the content received in the content recording unit.

Furthermore, in the content receiving method of the present invention, the communication based on the address is performed for the content whose content data amount is unknown even if the meta-language of the content list is analyzed and is determined not to meet the download condition. To determine the data amount of the content and to determine again whether or not the download condition is satisfied .

Further, in the content receiving method of the present invention, the communication speed between the network, and changes the data amount of conditions in the download condition.

  The terminal device and the content receiving method of the present invention store a download condition in which a data amount condition of content to be received from a network is set, and use a tag to use a meta language that means elements and attributes. Based on the address recognized by receiving the content list in which the address on the network is described, determining the amount of data of the content in which the address is described in the content list, and analyzing the meta-language of the content list By configuring the content so that the determined amount of data meets the download conditions via the network, it can be downloaded from the provided content list by analyzing the tag and recognizing the content of the element or attribute. Only content that meets the conditions It is possible to, without registering the browsing environment information distribution source, an effect that can receive content adapted to the viewing environment.

  Furthermore, the terminal device and the content receiving method of the present invention can display only content whose determined data amount meets the download condition without displaying content whose determined data amount does not meet the download condition on the display means. By configuring to display on the means, only the content that matches the download conditions can be selected from the provided content list, so that the content that matches the browsing environment can be easily played back. There is an effect.

  Furthermore, the terminal device and the content receiving method of the present invention are configured to change the data amount condition in the download condition according to the free capacity of the content recording means or the communication speed with the network, thereby responding to changes in the browsing environment For example, when the detected free capacity of the content recording unit is smaller than a predetermined amount or when the communication speed with the network is slower than the predetermined speed, The acquisition of content with a large capacity can be limited based on the amount of data, and the content can be acquired according to the browsing environment of the terminal device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a system configuration diagram showing a configuration of a distribution system for distributing content to a terminal device according to the present invention, and FIG. 2 is a diagram showing an example of a content list list recorded in a cast site server shown in FIG. 3 is a diagram showing an example of a content list recorded in the content list server shown in FIG. 1, and FIG. 4 is a block diagram showing the configuration of the embodiment of the terminal device according to the present invention. FIG. 5 is a diagram showing an example of download conditions stored in the data management unit shown in FIG.

  Referring to FIG. 1, the distribution system for distributing content to the terminal device 50 according to the present embodiment refers to a cast site server 20 that distributes a content list list via the network 10 such as the Internet, and the network 10. The content list server 30 distributes a content list and the content server 40 distributes content such as audio data, image data, and video data via the network 10. In the present embodiment, description will be made in terms of functionally divided into the cast site server 20, the content list server 30, and the content server 40. However, the cast site server 20, the content list server 30, and the content server 40 are configured as programs. It can be realized as a server system composed of one or more information processing devices that operate by control, and each server may be managed by different operators, or two or more of each server may be managed by the same operator. Anyway.

  The cast site server 20 has a function as a Web server that responds to various requests from the terminal device 50, and includes a content list list recording unit 21, a guidance information recording unit 22, a request response unit 23, and a transmission / reception unit 24. It has.

  The content list list recording unit 21 is a recording unit such as an HDD in which a content list list is recorded. The content list list is a structured document described in a meta language, and the name of the content list and the address on the network 10 where the content list is published (hereinafter referred to as a list URL) are described using tags. It is a list. Referring to FIG. 2, the content list in the present embodiment is a structured document described in OPML (Outline Processor Markup Language), which is one of XML (Extensible Markup Language) specifications.

  In FIG. 2, <? Xml version = "1.0" encoding = "UTF-8"?> Is an XML declaration indicating that the content list list is an XML document, and between the end tag </ head>, Start indicating that the content list list name is described as an element between the start tag <head> indicating that the content list list name and creation date and time are described as elements, and the end tag </ title> Content list between the start tag <dateCreated> and the end force tag </ body> indicating that the creation date is described as an element between the tag <head> and the end tag </ dateCreated> A plurality of content list names and list URLs are included between a start tag <body> and an end force tag </ outline> indicating that a group name, a plurality of content list names and a list URL are described as elements. Show that it is described as an element. In addition, a start tag <outline> indicating that the group name of the content list is described as an attribute, and an empty element tag <indicating that the content list name (text) and the list URL (xmlUrl) are described as attributes < outline />.

  Therefore, in the example of the content list shown in FIG. 3, the content list list name “ΔΔΔ cast site” and its creation date and time are described, and the content list name “XX News” is added to the group name “news”. ”And“ Today's stock price ”and its list URL, and the group name“ voice blog ”describes the content list names“ net talk ”and“ hero ”and its list URL.

  The guidance information recording unit 22 is a recording unit such as an HDD in which a guidance page created using a language different from the meta language used in the content list list, for example, HTML (HyperText Markup Language) is recorded. For example, a guide page for notifying that the requested address is an address for distributing a content list list described in OPML is recorded.

  Upon receiving the list list request from the terminal device 50, the request response unit 23 transmits the content list list recorded in the content list list recording unit 21 to the terminal device 50 via the network 10 by the transmission / reception unit 24, and the list list request When a request other than is received, the guide page recorded in the guide information recording unit 22 is transmitted via the network 10 by the transmission / reception unit 24. That is, the list list request from the terminal device 50 is a transmission request for a content list list described in OPML, and the request header such as an HTTP header (hereinafter referred to as a request header) is OPML (XML) compatible. When the request header describes that the request header is OPML compatible, the request response unit 23 uses the transmission / reception unit 24 to transmit the content list list recorded in the content list list recording unit 21 to the network. 10 is transmitted to the terminal device 50, and if it is not described in the request header that it is OPML compatible, it is recognized as a request from a Web browser compatible with HTML, and is recorded in the guidance information recording unit 22. Information page created using HTML Transmitting via the network 10 by the transceiver unit 24.

  The transmission / reception unit 24 has a function of connecting to the network 10 by wire or wireless, and performs information communication with the terminal device 50 via the network 10 based on a protocol such as HTTP (HyperText Transfer Protocol) or FTP (File Transfer Protocol). Do.

  The content list server 30 has a function as a Web server that responds to various requests from the terminal device 50, and includes a content list recording unit 31, a guidance information recording unit 32, a request response unit 33, and a transmission / reception unit 34. I have.

  The content list recording unit 31 is a recording unit such as an HDD in which a content list is recorded. The content list is a structured document described in a meta language, and the name of the content using a tag, the address on the network 10 where the content is published (hereinafter referred to as a data URL), and the data type of the content are This is a written list. Referring to FIG. 3, the content list of the present embodiment is described in RSS (Rich Site Summary), which is one of XML (Extensible Markup Language) specifications.

  In FIG. 3, <? Xml version = "1.0" encoding = "UTF-8"?> Is an XML declaration indicating that the content list list is an XML document, and an element between the end tag </ rss>. Content list name, content name, content overview, data URL, and data type that can be downloaded from the data URL, between the start tag <rss> and the end tag </ channel> indicating that is described by RSS Start tag <title> indicating that the content list name is described as an element between the start tag <channel> and the end tag </ title> indicating that is described as an element, and the end force Between the tag </ item>, between the start tag <item> indicating that the content name, content overview, data URL, and data type are described as elements, and the end tag </ description> , Content overview A start tag <description> indicating that it is described as an element, data URL and data types are configured out with empty element tag indicating that it is described as an attribute <enclosure />. In the empty element tag <enclosure />, other information related to the content to be distributed such as the data amount of the content may be described as an attribute.

  Therefore, in the example of the content list shown in FIG. 3, the content list name “XXX News” is described, the content name “3/1 news”, its outline, and the data type “audio data”. The data URL that can download the content that is, the data URL that can download the content whose data type is “image data”, and the data that can download the content whose data type is “video data” The URL is described, the content name “2/28 news”, its outline, the data URL with which the data type “image data” can be downloaded, and the data type “video data”. Describes the data URL from which the content can be downloaded , Content name "2/27 news", and its summary, data type and data URL which can be downloaded the content is "voice data" is described.

  The guidance information recording unit 22 is a recording unit such as an HDD in which a guidance page created using a language different from the meta language used in the content list, for example, HTML (HyperText Markup Language) is recorded. A guide page for notifying that the requested address is an address for distributing a content list described in RSS is recorded.

  Upon receiving the content list request from the terminal device 50, the request response unit 33 transmits the content list recorded in the content list recording unit 31 to the terminal device 50 via the network 10 by the transmission / reception unit 34. When the request is received, the guide page recorded in the guide information recording unit 32 is transmitted via the network 10 by the transmission / reception unit 34. That is, the content list request from the terminal device 50 is a content list transmission request described in RSS, and it is described in the request header that it corresponds to RSS (XML). If the header describes that it is RSS-compatible, the content list recorded in the content list recording unit 31 is transmitted to the terminal device 50 via the network 10 by the transmission / reception unit 34, and the request header is RSS-compatible. If there is no description, the request is recognized as a request from a Web browser compatible with HTML, and the guide page recorded in the guide information recording unit 32 is transmitted via the network 10 by the transmission / reception unit 34.

  The transmission / reception unit 34 has a function of connecting to the network 10 by wire or wireless, and performs information communication with the terminal device 50 via the network 10 based on a protocol such as HTTP (HyperText Transfer Protocol) or FTP (File Transfer Protocol). Do.

  The content server 40 has a function as a Web server that responds to various requests from the terminal device 50, and includes a content recording unit 41, a request response unit 42, and a transmission / reception unit 43.

  The content recording unit 41 is a recording unit such as an HDD in which contents such as “audio data”, “image data”, and “video data” are recorded.

  When the content request is received from the request response unit 42 and the terminal device 50, the content recorded in the content recording unit 41 is transmitted to the terminal device 50 via the network 10 by the transmission / reception unit 43.

  The transmission / reception unit 43 has a function of connecting to the network 10 by wire or wireless, and performs information communication with the terminal device 50 via the network 10 based on a protocol such as HTTP (HyperText Transfer Protocol) or FTP (File Transfer Protocol). Do.

  The terminal device 50 according to the present embodiment is a portable information processing device that operates by program control such as an audio player that reproduces content (audio data, image data, video data), and is used for a content list list. It has a function capable of supporting the meta language (OPML) and the meta language (RSS) used in the content list, and includes a transmission / reception unit 51, an information recording unit 52, and a display unit 53 such as a liquid crystal display. , An operation unit 54, a reproduction processing unit 55, and a data management unit 56.

  The transmission / reception unit 51 has a function of connecting to the network 10 by wire or wireless, and based on a protocol such as HTTP (HyperText Transfer Protocol) or FTP (File Transfer Protocol), the cast site server 20, the content list server 30, and the content server 40, information communication.

  The information recording unit 52 is a recording unit such as an HDD or a silicon memory. The content list list recording unit 521 that records the content list received from the cast site server 20 and the content list received from the content list server 30 are recorded. The content list recording unit 522 and the content recording unit 523 in which the content received from the content server 40 is recorded.

  The display unit 53 is a display unit such as a liquid crystal display. The content list list recorded in the content list list recording unit 521, the content list recorded in the content list recording unit 522, and the content recording unit 523 are recorded. A list of contents is displayed, and images and videos reproduced by the reproduction processing unit 55 based on the contents recorded in the content recording unit 523 are displayed.

  The operation unit 54 is an operation unit such as an operation button, and is a list setting instruction for inputting a condition setting input for setting a download condition indicating a condition of content to be downloaded and a content list list recorded in the cast site server 20. An acquisition instruction input, a content list acquisition instruction input for instructing acquisition of a content list recorded in the content list server 30, and various inputs related to reproduction of the received and recorded content are performed.

  The reproduction processing unit 55 decompresses and reproduces the content recorded in the content recording unit 523 of the information recording unit 52, displays images and videos on the display unit 53, and outputs audio to the connected headphones 57. .

  The data management unit 56 analyzes the meta-language of the content list list, that is, analyzes each tag of the OPML, thereby recognizing the contents described as tag elements and attributes in the content list list, It has a function of recognizing the contents described as tag elements and attributes in the content list list by analyzing the meta language, that is, analyzing each tag of RSS, and the cast site via the network 10 by the transmission / reception unit 51 By sending a list list request to the server 20, the content list list is received from the cast site server 20, the received content list list is recorded in the content list list recording unit 521, displayed on the display unit 53, and the transmission / reception unit 51 to network 10 It is to transmit the content list request to the content list server 30 derived receives the content list from the content list server 30, to record the received content list to the content list recording unit 522, on the display unit 53. Further, the data management unit 56 is set with a download condition in which a condition of data to be acquired is specified, and content that satisfies the download condition among the contents whose data URL is described in the content list is transmitted and received. By causing the content request to be transmitted to the content server 40 via the network 10 by 51, the content conforming to the download condition is displayed on the display unit 53 while being received from the content server 40.

  As shown in FIG. 5, the download condition stored in the data management unit 56 is composed of a data type and a data amount limit, and the determination method is set with a priority for each of the data type and the data amount limit. Has been. In the download condition shown in FIG. 5A, it is set that the data type of the data to be acquired is “voice data”, and the data amount of the data to be acquired is “1M” or less, as shown in FIG. In the download condition, the data type of the data to be acquired is “image data”, and it is set that there is no limit to the data amount of the data to be acquired. In the download condition shown in FIG. And there is no limit on the amount of data. The download conditions are initially set in advance, but can be set by the user by a condition setting input from the operation unit 54.

  Further, it is preferable that the download condition is automatically changed according to the free space of the content recording unit 523 and the communication speed with the network 10. That is, the data management unit 56 detects the free capacity of the content recording unit 523 and the communication speed with the network 10, and when the detected free capacity of the content recording unit 523 is smaller than a predetermined amount, or the communication with the network 10. When the speed is slower than the predetermined speed, the acquisition of large-capacity content can be restricted based on the data type and the data amount by changing the download condition, and the content according to the browsing environment of the terminal device 50 Can be obtained.

Next, the content list list, content list, and content distribution operation in the present embodiment will be described in detail with reference to FIGS.
FIG. 6 is a sequence chart showing the operation of the distribution system for distributing content to the terminal device according to the present invention, and FIG. 7 is a flowchart for explaining the content list list distribution operation in the cast site server shown in FIG. 8 is a diagram showing a display example of the content list value list in the terminal device shown in FIG. 1, and FIG. 9 is a flowchart for explaining the content list distribution operation in the content list server shown in FIG.

  Referring to FIG. 6, an access point such as a wireless LAN called a hot spot, or the network 10 such as the Internet and the terminal device 50 are connected at home or the like, and a list list acquisition instruction is input from the operation unit 54 by the user. Then (step A1), the data management unit 56 transmits a list list request to the cast site server 20 by the transmission / reception unit 51 (step A2). The list list request is a request for requesting distribution of a content list stored in the content list list recording unit 21 of the cast site server 20, and an address (hereinafter, list) where the content list is disclosed on the network 10. The request header describes that the content list corresponds to the content list described in OPML, that is, is compatible with OPML. The list URL may be input from the operation unit 54 by the user or may be set in advance.

  When the list list request from the terminal device 50 is received by the transmission / reception unit 24 of the cast site server 20, the request response unit 23 reads the content list list requested by the list list request from the content list list recording unit 21 and reads it out. The content list is transmitted to the terminal device 50 via the network 10 by the transmission / reception unit 24 (step A3).

  Referring to FIG. 7, the request response unit 23 monitors reception of a request by the transmission / reception unit 24 (step B1), and when the request is received by the transmission / reception unit 24, the received request is a list list request. Whether or not it is described in the request header as being OPML compatible (step B2). If it is determined in step B2 that the request is a list list request, the above-described operation of step A3 is performed. If it is determined in step B2 that the request is not a list list request, a request from a Web browser that supports HTML is used. Recognizing that it exists, the guide page created using HTML is read from the guide information recording unit 22, and the read guide page is transmitted via the network 10 by the transmission / reception unit 24 (step B3). Thereby, even when there is a request from a browser that does not support OPML, it is possible to distribute a guide page that can be browsed by a browser that does not support OPML. By distributing a guide page for notifying that it is an address for distributing the described content list list, recognition of the content list list can be promoted.

  When the content list list from the cast site server 20 is received by the transmission / reception unit 51 of the terminal device 50, the data management unit 56 causes the received content list list to be recorded in the content list list recording unit 521 and received. In the content list list, set in advance by referring to the start tag <outline text = "news">, <outline text = "voice blog"> ... indicating that the group name of the content list is described as an attribute The content list of the specified group is specified as the target content list (step A4), and the specified target content list is displayed on the display unit 53. In FIG. 8, the content list “XXX news” and “today's stock” grouped by the group name “news” are displayed as the target content list on the display unit 53, and the content list “XXX” is displayed by the cursor 60. A state in which “news” is selected is shown.

  Next, the cursor 60 is moved by the operation unit 54, the target content list to be acquired is selected from the target content list displayed on the display unit 53, and the content list acquisition instruction for instructing acquisition of the selected target content list When the input is performed from the operation unit 54 (step A6), the data management unit 56 transmits a content list request to the content list server 30 by the transmission / reception unit 51 (step A7). The content list request is a request for requesting distribution of a desired content list stored in the content list recording unit 31 of the content list server 30, and is described as an attribute of an empty element tag <outline /> in the content list list. The request header describes that it corresponds to the content list described by RSS, that is, is RSS compatible.

  When the content list request from the terminal device 50 is received by the transmission / reception unit 34 of the content list server 30, the request response unit 33 reads the content list requested by the content list request from the content list recording unit 31, and the read content The list is transmitted to the terminal device 50 via the network 10 by the transmission / reception unit 34 (step A8).

  Referring to FIG. 9, the request response unit 33 monitors the reception of the request by the transmission / reception unit 34 (step C1), and when the request is received by the transmission / reception unit 34, the received request is a content list request. Whether or not it is described in the request header as being RSS-compatible (step C2). If it is determined in step C2 that the request is a content list request, the above-described operation of step A8 is performed. If it is determined in step C2 that the request is not a content list request, a request from a Web browser that supports HTML is used. It recognizes that there is, and reads the guidance page created using HTML from the guidance information recording unit 32, and transmits the read guidance page via the network 10 by the transmission / reception unit 34 (step C3). Thereby, even when there is a request from a browser that does not support RSS, a guidance page that can be viewed by a browser that does not support RSS can be distributed. By distributing a guide page for notifying that the address is for distributing the described content list, recognition of the content list can be promoted.

  When the content list from the content list server 30 is received by the transmission / reception unit 51 of the terminal device 50, the data management unit 56 identifies the content acquired from the content server 40 from the received content list (step A9). Then, a content request for requesting distribution of the specified content is transmitted to the content server 40 by the transmission / reception unit 51 (step A10).

  When the content request from the terminal device 50 is received by the transmission / reception unit 43 of the content server 40, the request response unit 42 reads the content requested by the content request from the content recording unit 41, and the read / received content is transmitted by the transmission / reception unit 43. It transmits to the terminal device 50 via the network 10 (step A11).

Next, the target content specifying operation in the terminal device 50 of the present embodiment will be described in detail with reference to FIGS. 10 and 11.
FIG. 10 is a flowchart showing the target content specifying operation in the terminal device shown in FIG. 1, and FIG. 11 is a diagram showing a display example of the content list in the terminal device shown in FIG.

  The target content specifying operation performed in step A9 is performed based on the content list (received in the past) recorded in the content list recording unit 522 and the download condition.

  When the content list from the content list server 30 is received by the transmission / reception unit 51 of the terminal device 50 (step D1), the data management unit 56 is described as an element of the tag <Channel> and an element of the tag <title>. By referring to the content list name, it is determined whether or not a content list with the same name is recorded in the content list recording unit 522 (step D2).

  If a content list with the same name is recorded in the content list recording unit 522 in step D2, the data management unit 56 compares the received content list with the content list recorded in the content list recording unit 522. (Step D3) By referring to the content name described as the element of the tag <item> and the element of the tag <title>, the content list recorded in the content list recording unit 522 is included in the received content list. It is determined whether there is new content not described (step D4).

  If new content exists in step D4, the data management unit 56 identifies the new content as the target content (step D5). In step D2, if a content list with the same name is not recorded in the content list recording unit 522, the data management unit 56 identifies all content described in the received content list as target content ( Step D6). In addition, as shown in FIG. 3, when there are a plurality of tags <enclosure /> in which the data URL is described as an attribute in one content (element of tag <item>), the target for each tag <enclosure /> Content is identified.

  Next, the data management unit 56 deletes the same data by comparing the attributes (data URL, data type, etc.) described in the tag <enclosure /> (step D7). That is, when a plurality of tags <enclosure /> exist in one content name, a data URL for acquiring two or more identical contents may be erroneously described. In such a case, the same contents In order not to be acquired redundantly, one data URL is left and other identical data URLs are deleted.

  Next, the data management unit 56 determines the data type and data amount of the target content by a list determination method performed based on the content list (step D8), and the determined data type and data amount of the target content are set as the download condition. It is determined whether or not it matches (step D9). The data type determination by the list determination method in step D8 is performed based on the data type described as an attribute in the tag <enclosure /> and the extension of the data URL described as the attribute in the tag <enclosure />. The determination of the data amount by the list determination method in step D8 is performed when the data amount is described as an attribute in the tag <enclosure>. In step D9, the priority of the determination method set in the download condition is considered when determining whether the download condition is met. That is, the data type determination method includes a list determination method that can be determined without performing communication with the content server 40, and a communication determination method that is performed based on communication with the content server 40. Is higher than the communication determination method, it is determined whether the data type and the data amount of the target content match the download condition based on the determination result in step D8. If there is a communication determination method having a higher priority than the determination method, even if the data type and data amount of the target content determined in step D8 meet the download conditions, in step D9 it is determined whether or not they match. It is unknown and it is determined that the download conditions are not met. Further, even when the data type and the data amount are not described in the tag <enclosure /> and the data type and the data amount of the target content cannot be determined by the list determination method in step D8, in step D9, the conformity is satisfied. Whether or not to do so is unknown and it is determined that the download conditions are not met.

  The target content determined to meet the download conditions in step D9 is acquired from the content server 40. That is, the data management unit 56 transmits a content request for requesting distribution of the target content determined to meet the download condition to the content server 40 by the transmission / reception unit 51 (step D10). The content request is a request for requesting distribution of content stored in the content recording unit 41 of the content server 40, and is performed based on the data URL described as an attribute of the empty element tag <enclosure /> in the content list. Is called.

  When the target content from the content server 40 is received by the transmission / reception unit 51 of the terminal device 50 in response to the content request (step D11), the data management unit 56 causes the content recording unit 523 to record the received target content. (Step D12).

  For the target content that is determined not to meet the download condition in step D9, the data management unit 56 determines whether or not the download content does not conform to the download condition (step D13). The target content for which it is unknown whether or not the download condition is met in step D9 and is determined not to meet the download condition is determined not to be incompatible with the download condition in step D13, and the data management unit 56 downloads the download condition in step D13. A content request for requesting distribution of the target content determined not to be non-conforming to the content server 40 is transmitted to the content server 40 by the transmission / reception unit 51 (step D14), and the response of the content server 40 to the content request for the data type and data amount of the target content, That is, it is determined by the communication determination method, and the final determination of the data type and data amount of the target content is performed (step D15). In step D15, the data type is determined by the communication determination method. The data type described in the head part (hereinafter referred to as response header) of the response from the content server 40 to the content request, and MIME (Multipurpose Internet Mail Extensions encoding). The determination of the data amount by the communication determination method in step D15 is performed based on the data amount described in the response header, and the final determination is performed in consideration of the determination result by the list determination method in step D8. Done. That is, the determination result by the determination method with the highest priority among the determination results of the data type and the data amount by the list determination method at step D8 and the communication determination method at step D15 is the final determination of the data type and data amount. To do. If neither the list determination method in step D8 nor the communication determination method in step D15 can determine the data type and the data amount, the data type and the data amount are finally determined as unknown.

  Next, the data management unit 56 determines whether the data type and the data amount of the target content finally determined in step D15 meet the download condition (step D16), and determines the target content determined to meet the download condition. The content is recorded in the content recording unit 523 in the order of steps D11 to D12. When the terminal device 50 cannot cope with the target content that is finally determined that the data type and the data amount are unknown in Step D15, the target content that is unknown based on the data type and the data amount. Therefore, it is determined in step D16 that the download condition is not met.

  When the target content received in step D12 is recorded in the content recording unit 523, the data management unit 56 causes the display unit 53 to display the content name of the content whose data is recorded in the content recording unit 523 (step D17). ). Further, when it is determined in step D4 that no new content exists, when it is determined in step D13 that the download condition is not met, and in step D16 it is determined that the download condition is not met, The content name of the content whose data is recorded in the content recording unit 523 is displayed on the display unit 53 without acquiring new target content from the content server 40.

  The user can reproduce desired content by operating the operation unit 54 to select any of the contents displayed on the display unit 53 with the cursor 60 and instructing the reproduction.

  FIG. 11A shows a display example on the display unit 53 when the target content is acquired based on the content list shown in FIG. 2 and the download conditions shown in FIG. The content “2/28 news” that is not described in the tag <enclosure /> as the attribute of the audio data set as the data to be transmitted is not displayed, and the audio data set as the data to be acquired according to the download condition is the tag The contents “3/1 news” and “2/27 news” described as attributes in <enclosure /> are displayed, and the state where the content “2/27 news” is selected by the cursor 60 is shown. ing.

  FIG. 11B is a display example on the display unit 53 when the target content is acquired based on the content list shown in FIG. 2 and the download conditions shown in FIG. The content “2/27 news” in which the image data set as the data to be acquired by the tag <enclosure /> is not described as an attribute is not displayed, and the video data set as the data to be acquired according to the download conditions Only the contents “3/1 news” and “2/28 news” in which the tag <enclosure /> is described as an attribute are displayed, and the content “2/28 news” is selected by the cursor 60 It is shown.

  FIG. 11C is a display example on the display unit 53 when the target content is acquired based on the content list shown in FIG. 2 and the download conditions shown in FIG. All data of all contents described in the above are acquired as target contents, the contents are displayed for each data in such a way that the data type can be visually recognized, and the content “3/1 news image” is selected by the cursor 60. The state is shown. That is, when a plurality of data exist in one content, a plurality of the same content names are displayed in a form in which the data type can be visually recognized, and the user can select data to be reproduced. In FIG. 11C, the data type is configured to be visually recognized by the character information. However, the data type may be visually recognized by a color, a symbol, or the like. FIG. 11C shows an example in which a plurality of pieces of data of the same content have different data types. However, when a plurality of pieces of data of the same data type exist in the same content, the tag <enclosure /> Differentiated information such as a data URL described as an attribute may be displayed together with the content name. Further, in FIG. 11C, a plurality of data of the same content is displayed in the order described in the content list. However, the display order may be changed depending on the data type, the data amount, and the like.

  In the present embodiment, the content whose data is recorded in the content recording unit 523 is displayed on the display unit 53 after the target content that meets the download conditions is acquired from the content server 40 and recorded. Regardless of whether data is recorded in the content recording unit 523, it is determined by the list determination method whether the content whose data URL is described in the content list satisfies the download condition, and conforms to the download condition. Then, the content name of the determined data is displayed on the display unit 53, and when the acquisition is instructed by selection from the input from the operation unit 54, the instructed content is acquired from the content server 40 and reproduced (for example, content Play in streaming format to play sequentially while acquiring It may be configured to.

  As described above, according to the present embodiment, the download condition in which the data amount condition of the content received from the network 10 is stored in the data management unit 56, and the transmission / reception unit 51 The content management unit 56 receives the content list in which the data URL on the content network 10 is described in a meta language that signifies elements and attributes using the, and the data management unit 56 also stores the content URL in which the data URL is described in the content list. Based on the data URL recognized by determining the data amount and analyzing the meta-language of the content list, the transmission / reception unit 51 receives the content that matches the download condition via the network 10. By constructing, you can parse tags and include elements or attributes By recognizing, it is possible to receive only content that conforms to the download conditions from the provided content list, so that content that conforms to the browsing environment can be received without registering the browsing environment information at the distribution source. There is an effect that can be.

  Furthermore, according to the present embodiment, the data management unit 56 does not display the content whose determined data amount does not meet the download condition on the display unit 53, but only the content whose determined data amount meets the download condition. By configuring the display unit 53 so that it can be selected, only the content that meets the download conditions can be selected from the provided content list so that it can be easily played back. There is an effect that can be done.

  Furthermore, according to the present embodiment, the configuration of changing the data amount condition in the download condition according to the free capacity of the content recording unit 523 or the communication speed with the network 10 can cope with the change in the browsing environment. For example, when the detected free space of the content recording unit 523 is smaller than a predetermined amount or when the communication speed with the network 10 is slower than the predetermined speed, the data amount of the received content can be changed. The acquisition of content with a large capacity can be restricted based on the amount of data, and the content can be acquired according to the browsing environment of the terminal device 50.

  Note that the present invention is not limited to the above-described embodiments, and it is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a suitable number, position, shape, and the like in practicing the present invention. In each figure, the same numerals are given to the same component.

It is a system configuration figure showing the composition of the distribution system which distributes contents to the terminal unit concerning the present invention. It is a figure which shows the example of a content list list recorded on the cast site server shown in FIG. It is a figure which shows the example of a content list currently recorded on the content list server shown in FIG. It is a block diagram which shows the structure of embodiment of the terminal device which concerns on this invention. It is a figure which shows the example of download conditions memorize | stored in the data management part shown in FIG. It is a sequence chart which shows operation | movement of the delivery system which delivers a content to the terminal device which concerns on this invention. It is a flowchart explaining the delivery operation | movement of the content list list in the cast site server shown in FIG. It is a figure which shows the example of a display of the content list value list in the terminal device shown in FIG. It is a flowchart explaining the delivery operation | movement of the content list in the content list server shown in FIG. It is a flowchart which shows the specific operation | movement of the target content in the terminal device shown in FIG. It is a figure which shows the example of a display of the content list in the terminal device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Network 20 Cast site server 21 Content list list recording part 22 Guidance information recording part 23 Request response part 24 Transmission / reception part 30 Content list server 31 Content list recording part 32 Guidance information recording part 33 Request response part 34 Transmission / reception part 40 Content server 41 Content Recording unit 42 Request response unit 43 Transmission / reception unit 50 Terminal device 51 Transmission / reception unit 52 Information recording unit 53 Display unit 54 Operation unit 55 Playback processing unit 56 Data management unit 57 Headphone 60 Cursor 521 Content list list recording unit 522 Content list recording unit 523 Content Recording section

Claims (6)

A terminal device that receives content via a network,
Receiving means for receiving a content list in which addresses on the network of the content are described in a meta language that uses tags to denote elements and attributes;
Condition storage means for storing a data amount condition of the content set and input by the user as a download condition ;
Analyzing the meta-language of the content list to determine the data amount of the content whose address is described in the content list and determining whether or not the download condition is met;
Content receiving means for receiving, via the network, the content determined by the data amount determining means to meet the download condition based on the address recognized by analyzing a meta language of the content list;
A terminal device comprising: content recording means for recording the content received by the content receiving means.   The data amount determination means is configured to analyze the content of the content by communication based on the address for the content that has been determined that the content data amount is unknown even if the meta-language of the content list is analyzed and does not meet the download condition. The terminal device according to claim 1, wherein a data amount is determined, and it is determined again whether the download condition is met.   The terminal device according to claim 1, wherein the data amount determination unit changes a data amount condition in the download condition according to a communication speed with the network. A content receiving method for receiving content via a network and recording the received content in a content recording means,
Store the data amount condition of the content set and input by the user as a download condition ,
By receiving a content list in which addresses on the network of the content are described in a meta language that means an element and an attribute using a tag, and analyzing the meta language of the content list, the content list includes Determine the amount of data of the content in which the address is described to determine whether the download condition is satisfied,
Receiving the content determined to meet the download conditions via the network based on the address recognized by analyzing a meta-language of the content list;
A content receiving method, wherein the received content is recorded in the content recording means.   Analyzing the meta-language of the content list, the data amount of the content is unknown, and for the content determined not to meet the download condition, the content data amount is determined by communication based on the address, 5. The content receiving method according to claim 4, wherein it is determined again whether the download condition is met.   6. The content receiving method according to claim 4, wherein the data amount condition in the download condition is changed according to a communication speed with the network.

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