Patent Publication Number: US-7587673-B2

Title: Information processing apparatus, method and program

Description:
CROSS REFERENCES TO RELATED APPLICATIONS 
     The present invention contains subject matter related to Japanese Patent Application JP 2005-208840 filed in the Japanese Patent Office on Jul. 19, 2005, the entire contents of which are incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an information processing apparatus, method, and program. More, particularly, the present invention relates to an information processing apparatus, method, and program capable of selecting information related to predetermined programs, such as programs which are interesting to a user and are current topics of conversation. 
     2. Description of the Related Art 
     To date, there have been techniques which analyze matters considered to be current topics on the basis of the number of keywords, etc., included in program information provided as an EPG (Electronic Program Guide), and introduce to users the recorded programs and the programs to be broadcast that match the current topics. 
     Thus, a user can be provided with, for example the introductions of soccer programs among the recorded programs and the programs to be broadcast during the tournament in which soccer programs are frequently broadcast. 
     Japanese Unexamined Patent Application Publication No. 8-166961 has disclosed a technique for enabling a user to easily get information on a particular subject by extracting keywords from a plurality of character string data and by selecting information on the basis of the extracted keywords. 
     However, there is a problem in that subject matters determined only by program information are not necessarily popular topics among general users, because the contents addressed in the program are not selected by the reflection on subjective judgment of an individual, for example “I am interested in certain topics, or certain topics are popular around me”. 
     In recent years, bulletin boards on which users write their opinions, Weblogs (so-called Blogs) which attract people&#39;s attention as a tool for dispatching personal information, etc., have become widespread. Although some topics are not addressed in programs, those topics are often very popular among a certain bulletin board or Blog. 
     If the programs are selected in accordance with the matters taken up on a bulletin board or a Weblog, or the matters taken up in news delivered at a portal site, and those programs can be presented to a user, it becomes possible to introduce programs that are not dependent on program organizations. Also, if the headlines of news, etc., are displayed along with the programs to be introduced at that time, the user can select whether to view the introduced program while seeing those headlines. 
     SUMMARY OF THE INVENTION 
     The present invention has been made in view of these circumstances. For example, it is desirable to enable users to select information related to predetermined programs, such as programs which are interesting to the users and are current topics of conversation. 
     According to an embodiment of the present invention, there is provided an information processing apparatus including: a first selection section for extracting a keyword from program information of a predetermined program selected from at least one of a program being received and a recorded program, and selecting article information including the same keyword as the extracted keyword among the article information described in an RSS format and being delivered to a user; and a display controller for displaying the article information selected by the first selection section simultaneously with an image of the predetermined program. 
     The first selection section may give a ranking to the extracted keyword and select one of article information having a highest ranking, and the display controller may display one piece of the article information having the highest ranking selected by the first selection section simultaneously with the image of the predetermined program. 
     The display controller may further switch displays of the article information in accordance with the given rankings. 
     The information processing apparatus may further include: a first setting section for extracting a keyword from article information described in an RSS format and being delivered to a user, and giving a ranking to the extracted keyword; a second setting section for acquiring at least one of program information on a program being received and program information on a recorded program, and giving a ranking to the program including, in the program information, the same keyword as a keyword having as far as a predetermined ranking among the keywords having rankings given by the first setting section; and a second selection section for selecting the predetermined program on the basis of the rankings given by the second setting section. 
     According to an embodiment of the present invention, there is provided a method or a program of information processing including the steps of: extracting a keyword from program information of a predetermined program selected from at least one of a program being received and a recorded program, and selecting article information including the same keyword as the extracted keyword among the article information described in an RSS format and being delivered to a user; and displaying the selected article information simultaneously with an image of the predetermined program. 
     According to an embodiment of the present invention, keywords are extracted from program information of a predetermined program selected from at least one of a program being received and a recorded program, and article information including the same keyword as the extracted keyword is selected among the article information described in an RSS format and being delivered to a user. Also, the selected article information is displayed simultaneously with an image of the predetermined program. 
     According to an embodiment of the present invention, it is possible for a user to select information related to predetermined programs, such as programs which are interesting to the user and are current topics of conversation. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagram illustrating an example of an information processing apparatus according to an embodiment of the present invention and a television receiver connected thereto; 
         FIG. 2  is a diagram illustrating an example of a programs/RSS article introduction screen; 
         FIG. 3  is a diagram illustrating an example of a menu screen; 
         FIG. 4  is a diagram illustrating another example of a menu screen; 
         FIGS. 5A and 5B  are diagrams illustrating an example of switching from a menu screen to a program/RSS article introduction screen; 
         FIGS. 6A and 6B  are diagrams illustrating another example of switching from a menu screen to a program/RSS article introduction screen; 
         FIGS. 7A and 7B  are diagrams illustrating still another example of switching from a menu screen to a program/RSS article introduction screen; 
         FIG. 8  is a block diagram illustrating an example of the hardware configuration of the information processing apparatus; 
         FIG. 9  is a block diagram illustrating an example of the functional configuration of the information processing apparatus; 
         FIG. 10  is a block diagram illustrating an example of the detailed configuration of a program selection section in  FIG. 9 ; 
         FIG. 11  is a diagram illustrating a processing flow; 
         FIG. 12  is a diagram illustrating an example of program information; 
         FIG. 13  is a diagram illustrating an example of program rankings; 
         FIG. 14  is a diagram illustrating another example of program information; 
         FIG. 15  is a diagram illustrating another example of program rankings; 
         FIG. 16  is a block diagram illustrating an example of the detailed configuration of an RSS article selection section in  FIG. 9 ; 
         FIG. 17  is a diagram illustrating a processing flow; 
         FIG. 18  is a flowchart illustrating the program selection/display processing of the information processing apparatus; 
         FIG. 19  is a flowchart illustrating the profile selection processing performed in step S 4  in  FIG. 18 ; 
         FIG. 20  is a flowchart illustrating the RSS article acquisition processing performed in step S 5  in  FIG. 18 ; 
         FIG. 21  is a flowchart illustrating the program selection processing performed in step S 6  in  FIG. 18 ; 
         FIG. 22  is a flowchart illustrating the selected program display processing performed in step S 7  in  FIG. 18 ; 
         FIG. 23  is a flowchart illustrating the program related information selection/display processing of the information processing apparatus; 
         FIG. 24  is a flowchart illustrating the program related information selection processing performed in step S 55  in  FIG. 23 ; 
         FIG. 25  is a flowchart illustrating the program related information display processing performed in step S 56  in  FIG. 23 ; 
         FIG. 26  is a diagram illustrating display areas; 
         FIG. 27  is a diagram illustrating display candidate programs and the RSS articles that are related information thereof; 
         FIG. 28  is a diagram illustrating an example of switching displays; 
         FIG. 29  is a diagram illustrating another example of switching displays; 
         FIG. 30  is a diagram illustrating still another example of switching displays; and 
         FIG. 31  is a block diagram illustrating an example of the configuration of a personal computer. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In the following, a description will be given of an embodiment of the present invention. The relationship between the constituent features of the present invention and the embodiment described in the detailed description of the present invention is exemplified as follows. This description is for confirming that an embodiment supporting the present invention is included in the detailed description of the present invention. Accordingly, if there is an embodiment included in the detailed description of the present invention, but not included here as an embodiment corresponding to the constituent features, the fact does not mean that the embodiment does not corresponds to the constituent features. On the contrary, if an embodiment is included here as constituent features corresponding to the present invention, the fact does not mean the embodiment does not correspond to the features other than the constituent features. 
     An information processing apparatus (for example, the information processing apparatus  1  in  FIG. 1 ) according to an embodiment of the present invention includes: a first selection section (for example, a selection section  183  in  FIG. 16 ) for extracting a keyword from program information of a predetermined program (for example, a display candidate program) selected from at least one of a program being received and a recorded program, and selecting article information including the same keyword as the extracted keyword among the article information described in an RSS format and being delivered to a user; and a display controller (for example, a display controller  157  in  FIG. 9 ) for displaying the article information selected by the first selection section simultaneously with an image of the predetermined program. 
     The information processing apparatus may further include: a first setting section (for example, an RSS article keyword ranking creation section  173  in  FIG. 10 ) for extracting a keyword from article information described in an RSS format and being delivered to a user, and giving a ranking to the extracted keyword; a second setting section (for example, a program ranking creation section  174  in  FIG. 10 ) for acquiring at least one of program information on a program being received and program information on a recorded program, and giving a ranking to the program including, in the program information, the same keyword as a keyword having as far as a predetermined ranking among the keywords having rankings given by the first setting section; and a second selection section (for example, a selection section  175  in  FIG. 10 ) for selecting the predetermined program on the basis of the rankings given by the second setting section. 
     A method or a program of information processing according to an embodiment of the present invention include the steps of: extracting a keyword from program information of a predetermined program (for example, display candidate program) selected from at least one of a program being received and a recorded program, and selecting (for example, step S 68  in  FIG. 24 ) article information including the same keyword as the extracted keyword among the article information described in an RSS format and being delivered to a user; and displaying (for example, step S 71  in  FIG. 25 ) the selected article information simultaneously with an image of the predetermined program. 
     In the following, a description will be given of an embodiment of the present invention with reference to the drawings. 
       FIG. 1  is a diagram illustrating an example of an information processing apparatus according to an embodiment of the present invention and a television receiver (TV) connected thereto. 
     The information processing apparatus  1  is a digital picture recording apparatus having an HDD (Hard Disk Drive) built-in. The information processing apparatus  1  not only outputs images and sound of a program from a TV  2 , but appropriately acquires program data from the broadcast wave received by an antenna not shown, and stores the acquired program data into the HDD (records the program). 
     The information processing apparatus  1  has a function of acquiring a broadcast EPG, a function of acquiring an EPG by connecting to a predetermined server via the Internet and downloading from the server. The EPG includes program information, such as a title, a category, a broadcast date and time, performers, a program summary, etc. 
     Also, the information processing apparatus  1  is connected to a network, and has a function of receiving information in an RSS (Resource Description Framework Site Summary) format, which is delivered from newspaper publisher&#39;s sites, various portal sites, etc., registered in advance by a user and acquiring articles, such as news, comments, etc. That is to say, the information processing apparatus  1  is equipped with an RSS reader which reads information in the RSS format. 
     Here, RSS is a data format used for describing the titles, hyperlinks, and the summary of the sentences (texts), etc., written on Web pages and Weblogs, and indicating the summary of the Web pages and the Weblogs. The apparatuses to be provided with information receive article information in the RSS format (in the following, called RSS articles appropriately) delivered from the sites that the user has registered in advance. Thus, the user can acquire the Web page information including sentences, images, etc., and when the contents of the Web pages are updated, the user can acquire the updated Web page information immediately after the update. 
     In the information processing apparatus  1  having such a function, matters of current topics in general are determined from the acquired RSS articles. Then the programs addressing the topics are selected from the recorded programs or the programs being broadcast, and are introduced to the user. 
     For example, keywords are extracted from the RSS articles that have been delivered from the sites registered by the user. Rankings are set to the keywords in accordance with the number of the keywords included in the RSS articles. Also, rankings are given to the programs whose program information (title and summary) including high ranking keywords in accordance with the number of the included keywords, and the high ranking programs are selected as the programs to be introduced to the user. 
     Also, from the programs selected to be introduced to the user, the RSS articles are selected as the related information, and are introduced to the user. 
     The selected programs and the RSS articles, namely the related information to the programs, are displayed on the TV  2 . The user is allowed to instruct to view the program from the screen, or to instruct the display of the Web page, etc., (that content) whose summary is displayed by the RSS article body text or the RSS article. 
       FIG. 2  is a diagram illustrating a program/RSS article introduction screen displayed by the information processing apparatus  1 . 
     The program/RSS article introduction screen includes a main screen  11 , an RSS article title display section  11 A, an RSS article body text display section  11 B, sub-screens  12 - 1  to  12 - 3 , and RSS article title display sections  12 - 1 A to  12 - 3 A. 
     In the example of  FIG. 2 , the widest area is allocated to the main screen  11 , and the RSS article title display section  1 A is provided below the main screen  11 . Sub-screens  12 - 1  to  12 - 3  having the same-size areas individually are displayed below the RSS article title display section  11 A. RSS article title display sections  12 - 1 A to  12 - 3 A are provided below the sub-screens  12 - 1  to  12 - 3 , respectively.  11 A RSS article body text display section  11 B is provided in the right side of the screen. 
     The main screen  11  is an area in which the program having the highest ranking (still image or moving image of the program) selected from the recorded program or the program being broadcast is basically displayed. For example, a program whose program information includes the largest number of keywords that are extracted from the RSS articles and listed on relatively high rankings is regarded as the program having the highest ranking, and thus that program is displayed on the main screen  11 . In the example in  FIG. 2 , an image of a soccer rely is displayed in the main screen  11 . 
     For the image of the program to be displayed on the main screen  11 , for example if the program is a recorded program, the image selected from the data of the recorded program is used. If the program is a program being broadcast, the image of the program being broadcast or the image provided by being included in the program information is used. This is the same for the images to be displayed on the sub-screens  12 - 1  to  12 - 3 . 
     In the example of  FIG. 2 , in the RSS article title display section  11 A provided below the main screen  11  on which a program of a soccer relay is displayed, the RSS article title related to the soccer relay, “match against Bahrain, the starting members are announced” is displayed. This title is, for example the RSS article title being delivered from a predetermined site at the time of starting the broadcast of the soccer relay displayed on the main screen  11 . 
     The RSS article body text display section  11 B is an area in which the body text of the RSS article whose title is displayed in the RSS article title display section  11 A. In the example of  FIG. 2 , an article on the starting members of the soccer match displayed on the main screen  11  is displayed. 
     The contents to be broadcast as a program is considered to include some information which is taken up on a Web page or a weblog. Thus, if the RSS article on such a program can be acquired, it becomes possible to display the title and the body text along with the program. 
     The sub-screens  12 - 1  to  12 - 3  are areas in which programs having lower rankings than the program displayed in the main screen  11  are displayed, and images of soccer programs are displayed, individually. The RSS article title display sections  12 - 1 A to  12 - 3 A provided below the sub-screens  12 - 1  to  12 - 3  are areas in which the titles of the RSS articles selected as the related information of the program displayed on the sub-screens  12 - 1  to  12 - 3  are displayed. In the example of  FIG. 2 , the titles of the RSS articles on soccer are displayed in the RSS article title display sections  12 - 1 A to  12 - 3 A, respectively. 
     That is to say, this example shows the case in which the user receives the delivery of the RSS articles on soccer, and some soccer programs have been already recorded or being broadcast. 
     By selecting the programs displayed on the main screen  11 , and the sub-screens  12 - 1  to  12 - 3  from the program/RSS article introduction screen of  FIG. 2 , the user is allowed to view the recorded soccer programs. Also, by selecting the titles of the RSS articles, the user is allowed to see the body text and that content of the RSS articles. 
     Also, the user is allowed to switch the programs that are displayed on the main screen  11 , and the sub-screens  12 - 1  to  12 - 3  by a predetermined operation. When the programs are switched, the displays of the RSS articles (the title and the body text of the RSS articles) to be introduced are also switched with the program switch. 
     The contents of the RSS articles delivered to the user are interesting to the user, and thus the information processing apparatus  1  can select interesting programs to the user by selecting the programs on the basis of the RSS articles as described above. 
     Also, when the information published on a delivery site of the RSS articles is updated, the RSS articles are acquired immediately after the update, and the programs are selected on the basis of the acquired RSS articles. Thus, the information processing apparatus  1  can select the programs suitable for the current topics among general users. 
     A description will be given below of the details of the processing of the information processing apparatus  1  for displaying such a program/RSS article introduction screen. 
     Here, a description will be given of the other screens displayed by the information processing apparatus  1 . 
       FIGS. 3 and 4  are diagrams illustrating examples of a menu screen displayed by the information processing apparatus  1 . 
     As shown by a broken line in  FIG. 3 , category icons  21  to  25  indicating individual categories are arranged to be displayed in a lateral direction of the screen. Also, as shown by a broken line in  FIG. 4 , content icons (video content icons  31  to  34 ), which indicate the contents included in the category selected by the user, are arranged to be displayed in a vertical direction perpendicular to the arrangement direction of the category icons  21  to  25 . In this regard, the broken lines in  FIGS. 3 and 4  are given for the sake of explanation, and are not actually shown on the menu screen. 
     In the examples of  FIGS. 3 and 4 , a category icon  21  indicating a “photo” category, a category icon  22  indicating a “music” category, a category icon  23  indicating a “video” category, a category icon  24  indicating a “television” category, and a category icon  25  indicating a “game” category are arranged to be displayed from the left to the right of the screen. 
     That is to say, the information processing apparatus  1  has a “video” function which is selected when an operation on recording a program, such as reproduction of a recorded program, etc., is performed, a “television” function which is selected when a program being broadcast is viewed, a “photo” function which is selected when an image (still image) captured from a digital camera, etc., is reproduced, a “music” function which is selected when music stored in the internal HDD is reproduced, and a “game” function which is selected when a game is performed. 
     Also, in the example of  FIGS. 3 and 4 , the user has selected “video”, and the content icons  31  to  34  indicating video icons included in “video” are arranged to be displayed in the vertical direction. 
     The icon currently selected out of the content icons  31  to  34  is the content icon  32 . The content icon  32  is an icon to be selected when the start of the reproduction of the recorded program, “soccer special” is instructed. The character “soccer special” is displayed next to the content icon  32 . 
     On such a menu screen, the user can basically select a category by the lateral operation (right and left buttons) of a remote controller, and can select a content included in the selected category by the vertical operation (up and down buttons). 
     In accordance with the user&#39;s operation, the category icons  21  to  25  (the category icons  21  to  25 , and the other category icons indicating the other categories not shown in  FIGS. 3 and 4 ) and the content icons  31  to  34  (the content icons  31  to  34 , and the other content icons not shown in  FIGS. 3 and 4 ) are all moved together, individually. 
     For example, in the state of  FIG. 3  in which “video” is selected, if the user presses the left button one time, the category icons  21  to  25  are entirely moved together in the right direction. The category icon  22  will be moved to the position where the category icon  23  is displayed now, and the category icon  21  will be displayed at the position where the category icon  22  is displayed. 
     In the same manner, the category icon  23  will be displayed at the position where the category icon  24  is displayed now, and the category icon  24  will be displayed at the position where the category icon  25  is displayed. Another category icon, which is not shown in  FIGS. 3 and 4  but disposed at the left side of the category icon  21 , will be displayed at the position where the category icon  21  is displayed. 
     Thus, the current state is changed to a state of selecting “music” in place of “video”, and the content icons indicating audio contents included in “music” are arranged and displayed in the vertical direction. 
     On the other hand, if the user presses the right button one time in the state of  FIG. 3 , the category icons  21  to  25  are all moved together in the left direction on the contrary. Thus, the current state is changed to a state of selecting “television”. 
     Also, for example, in the state of  FIG. 3  in which the content icons  31  to  34  are displayed, if the user presses the up button one time, the content icons  31  to  34  are all moved together in the upward direction. The content icon  32  will be moved to the position where the content icon  31  is displayed now, and the content icon  33  will be displayed at the position where the content icon  32  is displayed. 
     In the same manner, the content icon  34  will be displayed at the position where the content icon  33  is displayed now, and another content icon, which is not shown in  FIGS. 3 and 4  but disposed just under the content icon  34 , will be displayed at the position where the content icon  34  is displayed. 
     Thus, the current state is changed to a state of selecting the content icon  33  from the state of selecting the content icon  32 . At this time, the tile of the video content indicated by the content icon  33 , etc., is displayed next to the content icon  33 . 
     On the other hand, if the user presses the downward button one time in the state of  FIG. 3 , the content icons  31  to  34  are all moved together in the downward direction on the contrary. Thus, the current state is changed to a state of selecting the content icon  31 . 
     The user is allowed to display the program/RSS article introduction screen shown in  FIG. 2  from such a menu screen. 
     For example, when a category for selecting a user (profile) is selected, if the information processing apparatus  1  is used by a plurality of users, such as a family members, etc., icons (characters) for selecting a user using the information processing apparatus  1 , for example “father”, “mother”, “elder brother”, and “younger sister”, etc., are arranged in the vertical direction. If the user is a father, the father can receive an introduction of the programs and RSS articles suitable for him by selecting the “father” icon. 
       FIG. 5A  is a diagram illustrating an example of display when a category for selecting a user is selected on the menu screen. 
     In the example of  FIG. 5A , the icons of “younger brother”, “father”, “mother”, and “elder brother” are arranged in the vertical direction and displayed. When the user selects the icon of “father”, if the “father” receives the RSS article delivery on soccer, and soccer is currently a general topic, as shown in  FIG. 5B , the TV  2  shows the program/RSS article introduction screen for introducing soccer programs and the related RSS articles to the programs. 
     In the same manner, if the “father” receives the RSS article delivery on horse racing, and horse racing (Derby) is currently a general topic, when the user selects the icon of “father” as shown in  FIG. 6A , the TV  2  shows the program/RSS article introduction screen for introducing horse racing programs and the related RSS articles to the programs as shown in  FIG. 6B . 
     Also, when the user using the information processing apparatus  1  is a mother, and the icon of “mother” is selected as shown in  FIG. 7A , if the “mother” is related to the RSS article delivery as shown in  FIG. 7B , and the programs addressing a general topic are displayed on the program/RSS article introduction screen. 
     The programs and the RSS articles introduced by the program/RSS article introduction screen are switched by the user using the information processing apparatus  1 , or at the timing of use in this manner, because the programs and the RSS articles are selected on the basis of the contents of the RSS articles delivered to the user and the topics at that time that have been determined from the RSS articles. 
       FIG. 8  is a block diagram illustrating an example of the hardware configuration of the information processing apparatus  1 . 
     A CPU (Central Processing Unit)  101  executes programs stored in a ROM (Read Only Memory)  103  and programs loaded from an HDD  118  to a RAM (Random Access Memory)  102  through an HDD I/F  117  and a bus  104 , and controls each section in accordance with, for example instructions (commands from a remote controller) of the user, which has been received by an U/I controller  105 . 
     In this regard, Cell, which has been described in “Cell come into existence”, Nikkei Electronics, Nikkei Business Publications, Feb. 28, 2005, p. 89 to p. 117, can be employed for the CPU  101 . 
     A tuner  106  receives a broadcast signal from an antenna not shown and outputs the received signal to a demodulator  107  under the control of the CPU  101 . 
     The demodulator  107  demodulates the received signal supplied from the tuner  106 , and outputs the transport stream broadcast through a predetermined channel to a TS decoder  108 . 
     The TS decoder  108  extracts a predetermined stream from the transport stream supplied from the demodulator  107  under the control of the CPU  101  using a RAM  109 , and outputs packets constituting the extracted stream onto the bus  104  or an AV decoder  110 . The packets (program data) supplied on the bus  104  are supplied to the HDD  118  through, for example the HDD I/F  117 , and stored. Also, the EPG acquired by the TS decoder  108  is appropriately supplied to the HDD  118 , and stored. 
     The AV decoder  110  decodes the video data (video packets) and audio data (audio packets) supplied from the TS decoder  108  using a RAM  111 , and outputs the audio signal and the video signal obtained by the decoding to an MUX  112  and an MUX  113 , respectively. 
     The MUX  112  outputs sound corresponding to the audio signal supplied from the AV decoder  110  from a speaker  2 B of the TV  2 . 
     The MUX  113  displays various screens and images, such as a program/RSS article introduction screen, etc., on a display  2 A of the TV  2  on the basis of the video signal supplied from the AV decoder  110  and the video signal (OSD (On Screen Display) signal) supplied from a display controller  114 . 
     The display controller  114  generates a video signal for displaying various images on a display  2 A under the control of the CPU  101 , and outputs the generated video signal to the MUX  113 . 
     An SIO (Serial I/O) controller  115  connects to a Web server  133  through the Internet  132  by controlling a high-speed modem  131 , and downloads an EPG, etc., as necessary. The EPG acquired by the download is supplied to the HDD  118 , and stored. Also, the SIO controller  115  accesses a delivery site of the RSS articles registered by the user and receives the RSS articles. The RSS articles acquired by the receiving is also supplied to the HDD  118 , and stored. 
     An IEEE (Institute of Electrical and Electronics Engineers) 1394 I/F  116  captures video data from a video camera which is connected through an IEEE 1394 cable. 
     An HDD I/F  117  stores the data supplied through the bus  104  into the HDD  118 , and supplies the data stored in the HDD  118  to each section through the bus  104 . 
     A card I/F  119  records the data supplied through the bus  104  onto a memory card  135  attached to a card slot  120 . Also, the card I/F  119  reads the data recorded on the memory card  135 , and outputs it onto the bus  104 . 
       FIG. 9  is a block diagram illustrating an example of the functional configuration of the information processing apparatus  1 . At least a part of the functional sections shown in  FIG. 9  is achieved by executing a predetermined program by the CPU  101  in  FIG. 8 . 
     The information processing apparatus  1  includes an RSS article acquisition section  151 , an RSS article database  152 , a program information acquisition section  153 , a program information database  154 , a program selection section  155 , an RSS article selection section  156 , and a display controller  157 . 
     The RSS article acquisition section  151  controls the SIO controller  115 , etc., and accesses the sites registered by the user in advance in order to acquire RSS articles. The acquisition of RSS articles is performed at a predetermined timing, such as when the user turns on the power to information processing apparatus  1 , or when the user instructs to display a program/RSS article introduction screen (when the user selects a user&#39;s icon from the main menu), etc. 
     For example, a delivery site registered by a father, a delivery site registered by a mother, etc., are accessed in sequence, and the RSS articles are acquired from individual sites. When the user has registered a site to be the delivery source of the RSS articles, a profile information is created, and an access destination site is identified from the profile information of each user. The RSS articles acquired by the RSS article acquisition section  151  are output to the RSS article database  152 , and stored. The stored RSS articles may be deleted when a predetermined time period has passed from the storage onto the RSS article database  152 . 
     The program information acquisition section  153  acquires the program information of each program from the EPG data acquired by the TS decoder  108  from the broadcast wave, or the EPG data acquired from a predetermined server through the Internet  132 , and stores the acquired program information into the program information database  154 . The program information database  154  stores the program information of the recorded programs in addition to the program information of the programs being broadcast and to be broadcast. 
     The program selection section  155  extracts keywords from the RSS articles stored in the RSS article database  152 , and gives rankings to the keywords in accordance with the number of keywords included in the RSS articles, etc. Also, the program selection section  155  refers to the program information database  154 , and gives rankings to the programs whose program information includes high ranking keywords in accordance with the number of the included keywords, etc. 
     Also, the program selection section  155  selects a predetermined number of programs on the high rankings as programs of display candidates on the basis of the given rankings, and outputs the selected program information along with the rankings given for individual programs to the RSS article selection section  156  and the display controller  157 . A detailed description will be given of the program selection section  155  below. 
     The RSS article selection section  156  selects the RSS articles related to the programs selected by the program selection section  155  with reference to the RSS articles stored in the RSS article database  152  and the program information stored in the program information database  154 , and outputs the titles and the body texts of the RSS articles to the display controller  157 . That is to say, the program selection section  155  selects the programs on the basis of the RSS articles, whereas the RSS article selection section  156  selects the RSS articles on the basis of the programs. A detailed description will be given of the RSS article selection section  156  below. 
     The display controller  157  acquires the images of the programs of the display candidates selected by the program selection section  155  from the HDD  118 , etc., and displays individual programs on the program/RSS article introduction screen. For example, when the number of images of the programs to be displayed on the program/RSS article introduction screen is assumed to be four, if the program selection section  155  selects the programs of that number or more as display candidate programs, the display controller  157  selects only four programs from the display candidate programs, and the selected four programs are displayed in individual areas. Which program image is displayed in which area is determined by the rankings given to the program and user&#39;s operation. 
     Also, the display controller  157  displays the titles of the RSS articles in the vicinity of individual programs on the basis of the information supplied from the RSS article selection section  156 , and displays the body text of the RSS article related to the program displayed on the main screen  11 . 
       FIG. 10  is a block diagram illustrating an example of the detailed configuration of the program selection section  155  in  FIG. 9 . 
     A program keyword extraction section  171  reads the program information of each program from the program information database  154 , and extracts keywords (program keywords) for each program by referencing dictionaries provided, etc. The program keywords extracted from the program information of each program are outputs to a program ranking creation section  174 . 
     An RSS article keyword extraction section  172  reads all the RSS articles which are delivered to individual users and stored in the RSS article database  152 , and extracts keywords (program keywords) by referencing dictionaries provided, etc. For example, if the father receives the RSS article delivery from three delivery sites, the RSS article keywords are extracted using all the RSS articles acquired from those delivery sites. The RSS article keywords extracted by the RSS article keyword extraction section  172  are output to an RSS article keyword ranking creation section  173 . 
     The RSS article keyword ranking creation section  173  gives points to the RSS article keywords extracted from the RSS article keyword extraction section  172  in accordance with the number of keywords included in the RSS articles, etc., and creates the rankings of the RSS article keywords (RSS article keyword rankings). The points given to the keywords may be appropriately provided with predetermined weightings. 
     The keywords included in the RSS articles at many places are considered to be words representing the matters that have become general topics. Thus, a predetermined number of keywords listed on the higher rankings of the RSS article keywords created by the RSS article keyword ranking creation section  173  are output to the program ranking creation section  174  as topic keywords which represents current topics. 
     The program ranking creation section  174  determines whether the program keywords, for each program, supplied from the program keyword extraction section  171  include the topic keywords supplied from the RSS article keyword ranking creation section  173 . If they include the topic keywords, the program ranking creation section  174  gives the points to each program in accordance with the number of the topic keywords included, and creates the rankings of the programs (program rankings). 
     A program whose program information includes the same words as the topic keywords is considered to be a program addressing the matters that have become current topics, and thus this program ranking is considered to represent the rankings of topic programs. In this regard, the points to be given to the programs may be provided with weightings in accordance with the rankings of the topic keywords included in the program keywords (the rankings in the RSS article keywords). The program rankings created by the program ranking creation section  174  are output to the selection section  175 . 
     The selection section  175  selects a predetermined number of programs listed on the program rankings created by the program ranking creation section  174  as the display candidate programs, and outputs the display candidate programs to the RSS article selection section  156  and the display controller  157 . 
       FIG. 11  is a diagram illustrating the processing-flow by the program selection section  155 . 
     For example, as shown by a solid-white arrow A 1 , program keywords are extracted from the program information of each program by the program keyword extraction section  171 . 
     At the same time, as shown by a solid-white arrow A 2 , RSS article keywords are extracted from all the RSS articles that the user receives by the delivery by the RSS article keyword extraction section  172 . The rankings of the extracted RSS article keywords are created by the RSS article keyword ranking creation section  173 . 
       FIG. 11  illustrates an example of the case in which the father receives three RSS article deliveries, articles on soccer, articles on all sports, and articles on horse racing. Keywords are extracted from all of the articles on soccer, the articles on all sports, and the articles on horse racing. In the RSS article keyword rankings in  FIG. 11 , the “preliminary”, to which 20 points are given, is the first keyword, and “Japan”, to which 19 points are given, is the second keyword. 
     As shown by solid-white arrows A 3  and A 4 , the number of topic keywords (the number of topic keywords in a program) included in the program keywords of each program is counted from the program keywords and the topic keywords, which are listed from the first to the 50th in the rankings of the RSS article keywords. The program is provided with points in accordance with that number, and the program rankings are created as shown by the destination of a solid-white arrow A 5 . 
     In the example of  FIG. 11 , “Japan vs. Bahrain”, to which nine points are given, is the first program, and “Iran vs. North Korea”, to which eight points are given, is the second program. The titles of the programs, such as “Japan vs. Bahrain”, “Iran vs. North Korea”, etc., can be acquired from the program information as shown by a solid-white arrow A 6 . 
       FIG. 12  is a diagram illustrating an example of program information of the program recorded by the father. 
     In the example of  FIG. 12 , sumo, horse racing, and soccer are the recorded programs. The program titles, the detailed information (program details) as shown in the figure are stored in the program information database  154 . 
       FIG. 13  is a diagram illustrating an example of the program rankings created on the basis of the program information of  FIG. 12 , etc. 
       FIG. 13  shows an example of the program titles and the detailed information of seven higher-ranking programs. The first program is the program of “Japan vs. Bahrain”, which includes eight topic keywords in the program information. 
     When the father selects his profile, and instructs to display the program/RSS article introduction screen, four high-ranking programs are selected from the programs listed on such program rankings, and they are displayed on individual areas of the program/RSS article introduction screen. 
       FIG. 14  is a diagram illustrating an example of the program information of the program recorded by the mother. 
     In the example of  FIG. 14 , variety programs in which idols appear on the stage and music programs are recorded programs. The program titles and the detailed information shown in the figure are stored in the program information database  154 . 
       FIG. 15  is a diagram illustrating an example of the program rankings created on the basis of the program information of  FIG. 14 . 
       FIG. 15  shows an example of the program titles and the detailed information of seven higher-ranking programs. The first program is the program of “SNAP×SNAP”, which includes four topic keywords in the program information. 
     When the mother selects her profile and instructs to display the program/RSS article introduction screen, four high-ranking programs are selected from the programs listed on such program rankings, and they are displayed on individual areas of the program/RSS article introduction screen. 
     In this regard, programs may not be selected for each one user, and programs may be selected on the basis of all the RSS articles that are individually delivered to a plurality of users (for example, all the family members), and those programs may be introduced as suitable programs to all the users. 
     Also, programs may be selected from the recorded programs by a plurality of users (for example, all the family members) on the basis of the RSS articles delivered to each user, and those programs may be introduced as suitable programs to each user. 
       FIG. 16  is a block diagram illustrating an example of the detailed configuration of the RSS article selection section  156  in  FIG. 9 . 
     A program keyword extraction section  181  reads the program information of the display candidate programs selected by the program selection section  155  from the program information database  154 , and extracts the program keywords by referencing dictionaries provided, etc. The program keyword extraction section  181  creates a list of the program keywords, and outputs the created list to a selection section  183 . 
     The RSS article keyword extraction section  182  extracts RSS article keywords from the individual RSS articles stored in the RSS article database  152  by referencing dictionaries provided, etc., and creates a list of the extracted RSS article keywords for each RSS article. That is to say, the RSS article keyword extraction section  182  creates one RSS article keyword list from one RSS article. The RSS article keyword list created by the RSS article keyword extraction section  182  is outputs to the selection section  183 . 
     The selection section  183  performs matching between the program keywords listed on the list supplied from the program keyword extraction section  181  and the RSS article keywords on the list supplied from the RSS article keyword extraction section  182 , and creates the rankings of the RSS articles in accordance with the number of the included program keywords. Also, the selection section  183  selects a predetermined number of RSS articles listed on the higher rankings of the created RSS articles, and outputs the title and the body text to the display controller  157 . 
       FIG. 17  is a diagram illustrating the processing flow by the RSS article selection section  156 . 
     For example, as shown by a solid-white arrow A 11 , program keywords are extracted from the program information of display candidate programs by the program keyword extraction section  181 . In the example of  FIG. 17 , the title of the display candidate program is “Japan vs. Bahrain”, and its detailed information is “final preliminary decisive match will be . . . ”. Also; the keywords, “Japan”, “Bahrain”, “best”, “Asia”, are extracted as the program keywords from the detailed information, and these keywords are listed as the program keywords. 
     At the same time, as shown by a solid-white arrow A 12 , RSS article keyword lists are created from individual RSS articles. In the example of  FIG. 17 , from the RSS article A, which is an RSS article on soccer, the RSS article keyword lists including “Japan”, “Bahrain”, “preliminary”, . . . are created, and from the RSS article B, which is an RSS article on soccer, the RSS article keyword lists including “Zico”, “Asia”, “decisive match”, . . . are created. 
     As shown by solid-white arrows A 13 - 1  to A 13 -n, matching is performed between the RSS article keywords on individual RSS article keyword list and the program keywords on the program keyword list, and thus as shown by the destination of the solid-white arrow A 14 , points are given in accordance with the number of program keywords included in the RSS article keywords to create a list (rankings) of RSS articles. 
     In the example of  FIG. 17 , the RSS article list includes RSS article A, RSS article D, RSS article E, . . . . A predetermined RSS articles are selected from this RSS article list, and the titles and the body texts of the RSS articles are displayed on the program/RSS article introduction screen. 
     Next, a description will be given of a series of processing of the information processing apparatus  1  having the above-described configuration. 
     First, a description will be given of the program selection/display processing of the information processing apparatus  1  with reference to the flowchart in  FIG. 18 . 
     In step S 1 , the CPU  101  determines whether program information (EPG) is being acquired or not. If it is being acquired, the CPU  101  waits until the end of the acquisition. The EPG acquired by the TS decoder  108  from a broadcast wave or the EPG acquired by the SIO controller  115  from a predetermined server is supplied to the HDD  118 , and stored. 
     In step S 1 , when the CPU  101  determines that program information is not being acquired, or the acquisition has been completed, the CPU  101  proceeds to step S 2 . When the current state is waiting, a determination is made on whether there has been an instruction to turn the power on (the state capable of accepting a user&#39;s operation using a remote controller). 
     In step S 2 , when the CPU  101  determines that the power has been already on and there has been no instruction to turn on the power, the CPU  101  proceeds to step S 3 . The CPU  101  instructs to display a menu screen, and determines whether the category of the profile selection (user selection) has been selected from the menu screen. In step S 3 , when the CPU  101  determines that the display of a menu screen, etc., has not been instructed, the CPU  101  returns to step S 1 , and execute the above processing repeatedly. 
     On the other hand, in step S 3 , when the display of the menu screen is instructed and the CPU  101  determines that the category of profile selection has been selected, the CPU  101  proceeds to step S 4 , and the CPU  101  executes profile selection processing. 
     Also, in step S 2 , when it is determined that an instruction has been given to turn on the power, the processing also proceeds to step S 4 , and the CPU  101  executes profile selection processing. That is to say, the user can select profile and display program/RSS article introduction screen not only from the menu screen, but also from the screen displayed when instructed to turn on the power. 
     When profile is selected in step S 4 , the profile selection processing is completed, and the processing proceeds to step S 5 . The profile selection processing will be described below with reference to the flowchart in  FIG. 19 . 
     In step S 5 , the CPU  101  performs RSS article acquisition processing. The latest RSS articles are acquired by this processing, and the following processing is performed on the basis of the latest RSS articles. The RSS article acquisition processing will be described below with reference to the flowchart in  FIG. 20 . 
     In step S 6 , the CPU  101  performs program selection processing which selects programs to be introduced to the user. By this processing, candidate programs to he displayed on the program/RSS article introduction screen are selected. The program selection processing will be described below with reference to the flowchart in  FIG. 21 . 
     In step S 7 , the CPU  101  performs selected program display processing which displays a predetermined programs from the display candidate programs selected in the program selection processing in step S 6  to be displayed on the RSS article introduction screen. The selected program display processing will be described below with reference to the flowchart in  FIG. 22 . 
     In this regard, the selection processing of RSS article articles introduced as program related information is performed in parallel with the above-described processing. The title and the body text of the RSS article articles are displayed at the same timing as the display of the programs by the processing of step S 7 . That is to say, the below-described processing in  FIG. 23  is performed in parallel with the processing in  FIG. 18 . For example, the processing of step S 56  (program related information display processing) in  FIG. 23  is performed at the same timing as the processing of step S 7  in  FIG. 18 , and thus the titles and the body texts of the program and the RSS-articles are displayed on the program/RSS article introduction screen. 
     When an instruction has given to complete the display of the program/RSS article introduction screen, the processing returns to step Si, and the subsequent processing is performed. 
     Next, a description will be given of the profile selection processing performed in step S 4  in  FIG. 18  with reference to the flowchart in  FIG. 19 . 
     When a category of profile selection is selected from the menu screen, in step S 11 , the CPU  101  displays a screen (profile selection screen), as shown in  FIG. 5A , in which the icons of the registered profiles such as “father”, “mother”, etc., are displayed in an arrangement in a vertical direction. At this time, the user can select his/her own profile by the operation in the vertical direction using a remote controller, etc. 
     When a profile is selected by the user, the CPU  101  accepts it in step S 12 . Then, the processing returns to step S 4  in  FIG. 18 , and the subsequent processing is performed. 
     Next, a description will be given of the RSS article acquisition processing performed in step S 5  in  FIG. 18  with reference to the flowchart in  FIG. 20 . 
     In step S 21 , the RSS article acquisition section  151  ( FIG. 9 ) of the CPU  101  acquires a list of sites to be the RSS article acquisition destination from the information of the profile selected in the profile selection processing. That is to say, a list of the delivery sites of the RSS articles is provided for each user, and the URLs (Uniform Resource Locators) of the delivery sites, etc., are described on the list. 
     In step S 22 , the RSS article acquisition section  151  accesses the delivery sites of all the RSS articles on the list, acquires the RSS articles, and stores the acquired RSS articles into the RSS article database  152 . Then, the processing returns to step S 5  in  FIG. 18 , and the subsequent portion is performed. 
     Next, a description will be given of the program selection processing performed in step S 6  in  FIG. 18  with reference to the flowchart in  FIG. 21 . 
     In step S 31 , the program keyword extraction section  171  ( FIG. 10 ) of the CPU  101  reads the program information of a program being broadcast or a recorded program from the program information database  154 , proceeds to step S 32 , and extracts program keywords for each program. The program keywords extracted by the program keyword extraction section  171  are output to the program ranking creation section  174 . 
     In step S 33 , the RSS article keyword extraction section  172  reads all the RSS articles delivered to the user from the RSS article database  152 , and extracts the RSS article keywords from the read RSS articles. The RSS article keywords extracted by the RSS article keyword extraction section  172  are outputs to the RSS article keyword ranking creation section  173 . 
     In step S 34 , the RSS article keyword ranking creation section  173  gives points to the RSS article keywords extracted by the RSS article keyword extraction section  172  in accordance with the number of the keywords included in the RSS articles, and creates RSS article keyword rankings. The keywords on the RSS article keyword rankings that are created by this processing, for example top  50 , are output to the program ranking creation section  174  as topic keywords. 
     In step S 35 , the program ranking creation section  174  determines whether the topic keywords supplied from the RSS article keyword ranking creation section  173  are included in the program keywords of each program supplied from the program keyword extraction section  171 . If included, the program ranking creation section  174  counts the number of topic keywords (topic keywords in the program) included in the program. 
     The program ranking creation section  174  proceeds to step S 36 , gives points in accordance with the number of topic keywords in the program counted in step S 35  to each program, and creates the program rankings. The program rankings created by the program ranking creation section  174  are output to the selection section  175 . 
     In step S 37 , the selection section  175  selects a predetermined number of programs listed at the high rankings on the program rankings created by the program ranking creation section  174  as programs for display candidates, and outputs the information of the selected programs to the RSS article selection section  156  and the display controller  157 . Then, the processing returns to step S 6  in  FIG. 18 , and the subsequent processing is performed. 
     In this regard, the processing for selecting programs is not limited to the above processing. That is to say, the processing having any procedure may be used if the matters that have become general topics by the RSS articles are analyzed and the programs matching to the matters are selected on the basis of the program information. 
     Next, a description will be given of the selected program display processing performed in step S 7  in  FIG. 18  with reference to the flowchart in  FIG. 22 . 
     In step S 41 , the display controller  157  selects the same number of programs as the number of programs to be displayed on the program/RSS article introduction screen from the programs of the display candidates selected by the program selection section  155 . Here, for example the same number of programs as the number of programs to be displayed on the program/RSS article introduction screen are selected from the first program ranking in sequence. 
     In step S 42 , the display controller  157  displays the program selected in step S 41  at the position in accordance with the ranking given to each program in order for the program having a higher ranking to be displayed in a bigger size. That is to say, when four programs are selected, the program having the highest ranking is displayed on the main screen  11 , and the other programs are displayed in sub-screens  12 - 1  to  12 - 3 . 
     In step S 43 , the display controller  157  switches the displays of the program/RSS article introduction screen in accordance with the user&#39;s operation, etc. 
     For example, the display controller  157  displays only the selected program on the full screen of the TV  2  when one recorded program is selected and the reproduction of the program is instructed. Also, if the selected program is a program being broadcast, the display controller  157  displays a menu screen of operations capable of performing on the program being broadcast, etc. The user can instruct to record the introduced program being broadcast from this menu screen, etc. 
     Further, when an instruction is given to switch programs displayed in the main screen  11  and the sub-screens  12 - 1  to  12 - 3 , the program selection section  155  displays the other display candidate programs that are not currently displayed. 
     When the completion of the display of the program/RSS article introduction screen is instructed, the processing returns to step S 7  in  FIG. 18 , and the processing of step S 1  and after are repeatedly performed. 
     Next, a description will be given of the program related information selection/display processing of the information processing apparatus  1  with reference to the flowchart in  FIG. 23 . 
     In step S 51 , the CPU  101  determines whether the program/RSS article introduction screen is being displayed, and waits until it is being displayed. 
     For example, when the program/RSS article introduction screen is displayed (when the program of display candidate is selected by the processing of  FIG. 18 ), or the program/RSS article introduction screen has already been displayed, in step S 51 , the CPU  101  determines that the program/RSS article introduction screen is being displayed, and the processing proceeds to step S 52 . 
     In step S 52 , the CPU  101  determines whether the program to be displayed on the program/RSS article introduction screen is changed. In step S 52 , if the CPU  101  determines that the program is to be changed, the processing proceeds to step S 53 . 
     When the CPU  101  acquires the program information in step S 53 , or determines not to change the program in step S 52 , the processing proceeds to step S 54 . 
     In step S 54 , the CPU  101  performs the RSS article acquisition processing. Here, the latest RSS articles are obtained by the same processing as the processing described with reference to  FIG. 20 , and the subsequent processing is performed on the basis of the acquired RSS articles. 
     In step S 55 , the CPU  101  performs the program related information selection processing, and selects the RSS articles as the information related to the programs displayed on the program/RSS article introduction screen. The program related information selection processing will be described below with reference to the flowchart of  FIG. 24 . 
     In step S 56 , the CPU  101  performs the program related information display processing to display the titles and the body texts of the RSS articles selected in the processing of step S 55  onto the program/RSS article introduction screen. The processing of this step S 56  is performed at the same timing as the processing of step S 7  in  FIG. 18 , and thus the program/RSS article introduction screen as shown in  FIG. 2  is displayed. The program related information display processing will be described below with reference to the flowchart of  FIG. 25 . 
     When the completion of the display of the program/RSS article introduction screen is instructed, the processing returns to step S 51 , and the subsequent processing is performed. 
     Next, a description will be given of the program related information selection processing performed in step S 55  in  FIG. 23  with reference to the flowchart in  FIG. 24 . 
     In step S 61 , the program keyword extraction section  181  ( FIG. 16 ) of the CPU  101  reads program information of the display candidates selected by the program selection section  155  from the program information database  154 , proceeds to step S 62 , and extracts program keywords. 
     In step S 63 , the program keyword extraction section  181  creates a list of the program keywords extracted in step S 62 , and outputs the created list to the selection section  183 . 
     In step S 64 , the RSS article keyword extraction section  182  extracts RSS article keywords from individual keywords stored in the RSS article database  152 , proceeds to step S 65 , and creates a list of the RSS article keywords extracted in step S 64 . The list of the RSS article keywords created by the RSS article keyword extraction section  182  is output to the selection section  183 . 
     In step S 66 , the selection section  183  performs matching between the program keywords on the program keyword list supplied from the program keyword extraction section  181  and the RSS article keywords on the RSS article keyword list supplied from the RSS article keyword extraction section  182 , and counts the number of program keywords included in the RSS article keywords extracted from the individual RSS articles. 
     In step S 67 , the selection section  183  creates the rankings of the RSS articles in accordance with the number of the program keywords included from the processing result of step S 66 , and the processing proceeds to step S 68 . 
     In step S 68 , the selection section  183  selects a predetermined number of the RSS articles on the higher rankings of the RSS article rankings as the program related information, and outputs the selected RSS articles to the display controller  157 . Then, the processing returns to step S 55  in  FIG. 22 , and the subsequent processing is performed. 
     The above processing is performed for each display candidate program, and thus one RSS article ranking is created for one display candidate program, and the RSS articles on the list are selected as the program related information. 
     In this regard, the processing for selecting the RSS articles is not limited to the above processing. That is to say, the processing may be performed by any procedure provided that the RSS articles related to the display candidate program selected by any procedure is selected on the basis of the RSS articles and the program information. 
     Next, a description will be given of the program related information display processing performed in step S 56  in  FIG. 23  with reference to the flowchart in  FIG. 25 . 
     In step S 71 , the display controller  157  displays the title of the RSS articles related to individual programs to be displayed on the program/RSS article introduction screen in the vicinity of the individual programs. 
     Thus, for example, the title of the RSS article related to the program displayed on the main screen  11  is displayed in the RSS article title display section  11 A provided below the main screen  11 . Also, the titles of the RSS articles related to the programs displayed on sub-screens  12 - 1  to  12 - 3  are displayed in the RSS article title display sections  12 - 1 A to  12 - 3 A provided below the sub-screens  12 - 1  to  12 - 3 . The title of the RSS article to be displayed immediately after the display of the program/RSS article introduction screen is, for example the title of the RSS article having the highest ranking among the RSS article rankings created by the selection section  183 . 
     In step S 72 , the display controller  157  displays the body text of the RSS article (the body text of the RSS article whose title is displayed in the RSS article title display section  11 A) related to the program displayed on the main screen  11  in the RSS article text display section  11 B. Thus, the user is allowed to determine whether to view the program displayed on the main screen  11  while reading the body text. 
     In step S 73 , the display controller  157  switches the displays of the titles and the body texts of the RSS articles in accordance with the user&#39;s operation, etc. 
     For example, when a title of an RSS article is selected, the display controller  157  displays the body text and the content of the RSS article. Also, a plurality of RSS articles are selected as related information for one program, and thus, for example the display controller  157  displays the titles and the body texts of individual RSS articles in sequence at a predetermined time intervals in accordance with the given rankings. 
     Here, a description will be given of the switching of displays of RSS articles. 
       FIG. 26  is a diagram illustrating display areas of the TV  2 . 
     In  FIG. 26 , the main screen  11  in  FIG. 2  is represented by an area A, the RSS article title display section  11 A is represented by an area a 1 , and the RSS article text display section  11 B is represented by an area a 2 . Also, sub-screens  12 - 1  to  12 - 3  are represented by areas B to D, respectively. The RSS article title display sections  12 - 1 A to  12 - 3 A are represented by areas b to d, respectively. 
       FIG. 27  is a diagram illustrating display candidate programs and the RSS articles that are related information thereof. 
     In  FIG. 27 , programs V 1 , V 2 , V 3 , V 4 , V 5 , . . . are shown as candidate programs. Among these programs, the program V 1  has RSS articles R(V 1 - 1 ), R(V 1 - 2 ), and R(V 1 - 3 ) as related RSS articles, and the program V 2  has RSS articles R(V 2 - 1 ), R(V 2 - 2 ), and R(V 2 - 3 ) as related RSS articles. For the other programs subsequent to the program V 2 , the RSS articles are selected as the related information. 
       FIG. 28  is a diagram illustrating an example of switching displays. 
     In the upper display of  FIG. 28 , the program V 1  is shown in the area A, the title of the RSS article R(V 1 - 1 ), which is one piece of related information of the program V 1 , R.t(V 1 - 1 ), is shown in the area a 1 , and the body text of the RSS article R(V 1 - 1 ), R.d(V 1 - 1 ), is shown in the area a 2 . 
     Also, in the upper display of  FIG. 28 , the program V 2  is shown in the area B, the title of the RSS article R(V 2 - 1 ), which is one piece of related information of the program V 2 , R.t(V 2 - 1 ), is shown in the area b. The program V 3  is shown in the area C, the title of the RSS article R(V 3 - 1 ), which is one piece of related information of the program V 3 , R.t(V 3 - 1 ), is shown in the area c. Similarly, program V 4  is shown in the area D, the title of the RSS article R(V 4 - 1 ), which is one piece of related information of the program V 4 , R.t(V 4 - 1 ), is shown in the area d. 
     Such a display is switched to the lower display in  FIG. 28  at a predetermined timing, such as an elapse of a predetermined time period, or when the user carries out a predetermined operation, etc. 
     In the lower display of  FIG. 28 , the title of the RSS article R(V 1 - 2 ), which is one piece of related information of the program V 1 , R.t(V 1 - 2 ), is shown in the area a 1 , and the body text of the RSS article R(V 1 - 2 ), R.d(V 1 - 2 ) is shown in the area a 2 . 
     Also, the title of the RSS article R(V 2 - 2 ), which is one piece of related information of the program V 2 , R.t(V 2 - 2 ), is shown in the area b, the title of the RSS article R(V 3 - 2 ), which is one piece of related information of the program V 3 , R.t(V 3 - 2 ), is shown in the area c, and the title of the RSS article R(V 4 - 2 ), which is one piece of related information of the program V 4 , R.t(V 4 - 2 ), is shown in the area d. 
     That is to say, this example shows a case in which the program are displayed in individual areas without change, and the RSS articles introduced to the user are switched after the elapse of a predetermined time. Thus, the user is allowed to select a program while viewing the RSS article titles being switched and the body text of the RSS article displayed in the RSS article text display section  11 B. 
       FIG. 29  is a diagram illustrating another example of switching displays. 
     The upper left display of  FIG. 29  is the same as the upper display of  FIG. 28 . Such a display is switched to the lower left display of  FIG. 29  at a predetermined timing, such as an elapse of a predetermined time period, or when the user carries out a predetermined operation, etc. 
     In the lower left display of  FIG. 29 , the title of the RSS article R(V 1 - 2 ), which is one piece of related information of the program V 1 , R.t(V 1 - 2 ), is shown in the area a 1 , and the body text of the RSS article R(V 1 - 2 ), R.d(V 1 - 2 ) is shown in the area a 2 . 
     Also, in the lower left display of  FIG. 29 , the program V 3  is shown in the area B, the title of the RSS article R(V 3 - 2 ), which is one piece of related information of the program V 3 , R.t(V 3 - 2 ), is shown in the area b. The program V 4  is shown in the area C, the title of the RSS article R(V 4 - 2 ), which is one piece of related information of the program V 4 , R.t(V 4 - 2 ), is shown in the area c. Similarly, program V 5  is shown in the area D, the title of the RSS article R(V 5 - 1 ), which is one piece of related information of the program V 5 , R.t(V 5 - 1 ), is shown in the area d. 
     Further, such a display is switched to the lower right display of  FIG. 29  at a predetermined timing, such as an elapse of a predetermined time period, or when the user carries out a predetermined operation, etc. 
     In the lower right display of  FIG. 29 , the title of the RSS article R(V 1 - 3 ), which is one piece of related information of the program V 1 , R.t(V 1 - 3 ), is shown in the area a 1 , and the body text of the RSS article R(V 1 - 3 ), R.d(V 1 - 3 ) is shown in the area a 2 . 
     Also, in the lower right display of  FIG. 29 , the program V 4  is shown in the area B, the title of the RSS article R(V 4 - 3 ), which is one piece of related information of the program V 4 , R.t(V 4 - 3 ), is shown in the area b. The program V 5  is shown in the area C, the title of the RSS article R(V 5 - 2 ), which is one piece of related information of the program V 5 , R.t(V 5 - 2 ), is shown in the area c. Similarly, program V 6  is shown in the area D, the title of the RSS article R(V 6 - 1 ), which is one piece of related information of the program V 6 , R.t(V 6 - 1 ), is shown in the area d. 
     That is to say, the example of  FIG. 29  shows a case in which the program is displayed in the areas A without change, and the programs displayed in the areas B to D are switched to be moved in the left direction in sequence. 
     Specifically, when the displays are switched, for the areas B to D, the program that has been displayed in the leftmost area B so far disappears, and the program that has been displayed in the area C is displayed there. Also, the program that has been displayed in the area D is displayed in the area C. The program that has not been displayed is displayed in the rightmost area D. 
     Further, the display position of the titles, the body texts of the RSS articles related to the program are moved along with the move of the display position of the program, and the contents (types of the RSS articles) are switched in sequence in the same manner as the case of  FIG. 28 . 
       FIG. 30  is a diagram illustrating still another example of switching displays. 
     The upper left display of  FIG. 30  is the same as the upper display of  FIG. 28 . In such a state, for example when the program V 4  (the program V 4  and the title of the RSS article R(V 4 - 1 ), R.t(V 4 - 1 ), displayed in the area d) displayed in the area D is selected and is instructed to be deleted, for example the display of the TV  2  is switched to the lower left display of  FIG. 30 . 
     In the lower left display in  FIG. 30 , the title of the RSS article R(V 1 - 2 ), which is one piece of related information of the program V 1 , R.t(V 1 - 2 ), is shown in the area a 1 , the body text of the RSS article R(V 1 - 1 ), which is the body text of the program V 1 , R.d(V 1 - 2 ), is shown in the area a 2 . The title of the RSS article R(V 2 - 2 ), which is one piece of related information of the program V 2 , R.t(V 2 - 2 ), is shown in the area b. The title of the RSS article R(V 3 - 2 ), which is one piece of related information of the program V 3 , R.t(V 3 - 2 ), is shown in the area c. 
     Further, in the lower left display of  FIG. 30 , the program V 5  is shown in the area D, the title of the RSS article R(V 5 - 1 ), which is one piece of related information of the program V 5 , R.t(V 5 - 1 ), is shown in the area d. 
     Also, the upper left display of  FIG. 30  may be switched to the lower right display of  FIG. 30  by the user&#39;s operation. 
     In the lower right display of  FIG. 30 , the program V 1 new is shown in the area D, the title of the RSS article R(V 1 new- 1 ), which is one piece of related information of the program V 1 new, R.t(V 1 new- 1 ), is shown in the area d, which is different from the lower left display of  FIG. 30 . The other displays are the same. Here, the program V 1 new is, a so-called counter program, for example which is broadcast in the same time slot as the program V 1  that is displayed in the area A. 
     That is to say, the example of  FIG. 30  shows the case in which when a user selects a certain program (program and the title of the RSS article) and deletes it, another program and the title of the RSS article related to that program are displayed in place of the certain program. In this manner, the user is allowed to perform various kinds of operations, such as deletion of the program displayed on the program/RSS article introduction screen, etc. 
     As described above, the program to be introduced to the user is displayed at a different position or in an area in different size in accordance with the rankings given on the basis of the program information and the RSS article. However, the difference in the ranking may be expressed in the difference in display, for example in color of the frame of the program. In this case, for example the frame of a program having higher ranking is expressed more conspicuously than the frame of the program having lower rankings. 
     Also, the title of the RSS article, the keywords included in the body text displayed on the program/RSS article introduction screen may be displayed in a more conspicuous manner than the other words. For the display of the title of the RSS article and the body text, if the title and the entire body text are not allowed to be displayed at once in an allocated area, the summary may be displayed, or the content may flow from one side of the screen to the other side. The display of the title of the RSS article may flow repeatedly, and the user may be allowed to stop the flow at a predetermined timing. After the display of the title flows once, for example the other information on the program, such as a channel and a broadcast time, etc., acquired from the program information may be displayed subsequently. 
     Also, the RSS articles whose body text and Web pages are not checked by the user may be displayed differently in color from those that have already checked. The titles of important RSS articles may be displayed conspicuously, or those titles and body texts may be displayed to be popped up. 
     Also, the user may switch the RSS articles to an upper-level RSS article or a lower-level RSS article in sequence. The user may also be allowed to delete unnecessary RSS articles. 
     Furthermore, in an area in which the titles and the body texts of the RSS articles are displayed, information other than the RSS articles, for example an advertisement, the URL of a predetermined site (for example, the delivery site of the RSS article), etc., may be displayed. When the recording reservation of a program is set, the RSS article may be acquired, and that RSS article may be selected as the related information to the recorded program. 
     Also, such program-related information may not be displayed in the vicinity of the program, and may be displayed on a display unit such as a mobile terminal, etc., provided separately from the TV  2 . That is to say, when the information related to a program is selected, the information processing apparatus  1  transmits the information, such as the titles and the body texts of the RSS articles to a separate apparatus using wireless or wired communication. 
     In the above description, the programs to be introduced on the program/RSS article introduction screen are the programs being broadcast or the recorded programs. However, if there is no program to be introduced among the recorded programs and the programs being broadcast, the programs scheduled to be broadcast may be introduced. In this case, the information, such as the image of the program scheduled to be broadcast acquired from the program information, the title of the program, the performers, etc., are displayed in the area allocated for the program scheduled to be broadcast within the program/RSS article introduction screen. Furthermore, when the same information as the EPG in the program scheduled to be broadcast is provided, the stream content acquired through the Internet may be introduced. 
     Also, in the above description, a plurality of programs are selected on the basis of one set of the program rankings created, and are displayed in individual areas of the program/RSS article introduction screen. However, such program rankings may be created for each category, the programs may be selected for each category on the basis of the program rankings in each category, and may be displayed on the program/RSS article introduction screen. For example, as described with reference to  FIG. 11 , when the “father” receives the delivery of the RSS articles on “soccer”, “all sports”, and “horse racing”, the RSS article keywords are extracted for each category (“soccer”, “all sports”, and “horse racing”), and the program rankings are created using the extracted RSS article keywords. The programs that are listed on the first rankings for individual categories are displayed on the program/RSS article introduction screen. Thus, the user can check the program that has become a topic for each category. 
     Also, the user may be allowed to modify the keywords and the program rankings that are the bases of the program selection by himself/herself. Furthermore, the program selection may be carried out with reference to the user&#39;s viewing history on the RSS articles, operation history, etc. 
     Also, the RSS articles to be the bases of the program selection may be acquired from the delivery sites at the time of the profile selection. 
     Also, after turning the power on, the RSS articles may be acquired, the program selection processing may be performed, and the selected program may be displayed without displaying the profile selection screen. At that time, the program may be selected on the basis of all the RSS articles that are individually delivered to a plurality of users (for example, all the family members). Alternatively, the program may be selected on the basis of all the RSS articles that are delivered to the user having the first priority among the individual users. 
     Furthermore, in the above description, different programs are individually displayed on the program/RSS article introduction screen. However, different scenes of the same program may be selected on the basis of the closed captions, and the individual scenes may be displayed. Thus, the user can select a scene to be viewed. Also, the RSS articles may be selected as the related information on the basis of not only the program information of the display candidates but also the closed captions, etc. 
     The above-described series of processing can be executed by hardware or can be executed by software. When the series of processing is executed by software, the programs constituting the software are built in a dedicated hardware of a computer. Alternatively, the various programs are installed in, for example a general-purpose personal computer capable of executing various functions from a recording medium. 
       FIG. 31  is a block diagram illustrating an example of the configuration of a personal computer for executing the above-described series of processing. A CPU  201  executes various kinds of processing in accordance with the programs stored in a ROM  202  or a storage section  208 . A RAM  203  appropriately stores programs to be executed by the CPU  201 , data, etc. The CPU  201 , the ROM  202 , and the RAM  203  are mutually connected with a bus  204 . 
     An input/output interface  205  is connected to the CPU  201  through the bus  204 . An input section  206  including a keyboard, a mouse, a microphone, etc., and an output section  207  including a display, a speaker, etc., are connected to the input/output interface  205 . The CPU  201  executes various kinds of processing in accordance with instructions input from the input section  206 . The CPU  201  outputs the result of the processing to the output section  207 . 
     The storage section  208  connected to the input/output interface  205  includes, for example a hard disk, and stores the programs executed by the CPU  201  and various kinds of data. A communication section  209  communicates with an external apparatuses through a network such as the Internet, a local area network, etc. 
     Also, the programs may be acquired through the communication section  209 , and may be stored in the storage section  208 . 
     When a removable medium  211 , such as a magnetic disk, an optical disc, a magneto-optical disc, or a semiconductor memory, etc., is attached, a drive  210  connected to the input/output interface  205  drives the medium, and acquires the program and the data recorded there. The acquired program and data is transferred to the storage section  208  as required, and is stored there. 
     The program recording medium for storing the programs, which are installed in a computer and is executable by the computer, includes, as shown in  FIG. 31 , a removable medium  211  which is a package medium including, such as a magnetic disk (including a flexible disk), an optical disc (including a CD-ROM (Compact Disk-Read Only Memory) and a DVD (Digital Versatile Disk)), a magneto-optical disc, or a semiconductor memory, etc. Alternatively, the program recording medium includes a ROM  202  for storing the programs temporarily or permanently, a hard disk constituting the storage section  208 , etc. The storage of the programs into the program recording medium is carried out through the communication section  209 , which is a router, a modem, etc., as necessary, or using a wired or wireless communication medium, such as a local area network, the Internet, a digital satellite broadcasting, etc. 
     In this regard, in this specification, the steps describing the programs to be stored in the program recording medium include the processing to be performed in time series in accordance with the described sequence as a matter of course. Also, the steps include the processing which is not necessarily executed in time series, but is executed in parallel or individually. 
     It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and alterations may occur depending on design requirements and other factors insofar as they are within the scope of the appended claims or the equivalents thereof.