JP2005277984A - Receiving terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiving terminal which can easily distinguish a scene which a televiewer does not want to overlook and a scene not wanted to be looked especially, and can exactly see a desired scene. <P>SOLUTION: The receiving terminal is provided with an antenna 11 which receives signals for broadcasting, a character extracting part (14, 31) which extract character information such as caption information, a BML (Broadcasting Markup Language) document, etc. from the received signal, a condition checking part 32 which discriminates whether the character information satisfies a reporting condition (30) or not, and reporting parts (34, 21) which perform predetermined reporting operations when the condition checking part 32 discriminates that the reporting condition is satisfied. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a receiving terminal such as a mobile phone that receives a signal by broadcasting or communication, and more particularly to a receiving terminal that contributes to efficient use of received information.

In recent years, electronic program guides (EPGs) have been used in television program broadcasting.
) And other technologies have been developed that give additional information to the broadcast, such as providing chapters at regular intervals.

Further, for example, in Patent Document 1 below, storage means for digitizing a video signal and an audio signal broadcast simultaneously with data broadcasting and temporarily storing them in a storage medium, and a video signal and an audio stored in the storage means It consists of a data processing device that extracts keyword data from the signal,
A data broadcast receiver characterized in that, based on data extracted from a video signal and an audio signal by an operation from a user, information is retrieved from a data broadcast database and the data is displayed;
Is disclosed.
Japanese Patent No. 2000-196478

By the way, viewers of television programs often cannot continue to watch the display screen due to time restrictions or the like even while receiving a broadcast. This can be said to be a home television receiver, but it is particularly noticeable when a digital broadcast or the like is received and viewed by a portable terminal (such as a mobile phone). On the other hand, there is a strong demand for “I don't want to miss only a specific scene in a TV program” or “I want to know just the progress of a game” in a sports game relay program or the like.

However, additional information obtained by providing an electronic program guide or a chapter is difficult to respond to live broadcasting, and is only provided in accordance with a predetermined program schedule. In other words, in order to ensure the appreciation of the specific scene and the confirmation of the progress, it is necessary to continue to watch images that are not particularly desired to be watched. End up.

In addition, the conventional configuration example of Patent Document 1 is intended to dynamically extract desired data by a user operation, but the user can know in real time that a scene to be viewed is being broadcast. After all, the above-mentioned demand cannot be met.

In view of the above points, the present invention makes it possible to easily distinguish the received content desired by the viewer from the received content that is not, and to ensure the desired received content without checking the display screen or the like. An object of the present invention is to provide a receiving terminal that enables viewing.

In order to achieve the above object, a receiving terminal according to the present invention comprises a receiving means for receiving a broadcast signal, a character extracting means for extracting character information from the received signal, and a notification in which the character information is preset. Condition checking means for determining whether a condition is satisfied, and notification means for performing a predetermined notification operation when the condition checking means determines that the notification condition is satisfied.

Thus, if a notification condition that matches a specific scene that the user wants to watch is set, the viewer can recognize that the specific scene has been obtained by receiving the notification operation. As a result, the specific scene can be surely viewed. Further, it is possible to distinguish between a video that the user wants to view and a video that is not particularly desired to view without confirming the display screen. Also, the progress of the broadcast content can be confirmed.

Moreover, the character information here means a subtitle sentence when a broadcast including subtitle information is received. In addition, when receiving data broadcasting, BML (Broadcast Makeup L
anguage) document, but if the data broadcast provides a document written in a language other than BML, it means a document written in a language other than BML.

Also, for example, in the above configuration, the receiving means may receive a signal by data broadcasting or broadcasting including caption information.

In order to achieve the above object, a receiving terminal according to the present invention includes a receiving unit that receives a signal by communication, a character extracting unit that extracts character information from the received signal, and the character information is preset. A condition checking unit that determines whether the notification condition is satisfied, and a notification unit that performs a predetermined notification operation when the condition checking unit determines that the notification condition is satisfied.

Thus, if a notification condition that matches a specific scene that the user wants to watch is set, the viewer can recognize that the specific scene has been obtained by receiving the notification operation. As a result, the specific scene can be surely viewed. Further, it is possible to distinguish between a video that the user wants to view and a video that is not particularly desired to view without confirming the display screen. Also, the status of the received content can be confirmed.

Further, for example, in the above configuration, the notification condition includes a keyword, and the condition matching unit may determine that the notification condition is satisfied when a character included in the character information matches the keyword. .

With this configuration, the viewer can express a specific scene he / she wishes to view with a keyword, and the keyword can be set as a notification condition. When the character string included in the character information matches the keyword, the viewer receives the notification operation. Thus, the viewer can recognize that the specific scene has been reached, and can surely appreciate the specific scene.

Further, for example, in the above configuration, the character information is composed of a plurality of character strings described according to a predetermined rule, and the notification condition is set for a part of the character string constituting the character information. It may be possible.

The extracted character information usually includes various information, and if all the character strings constituting the character information are targeted and the satisfaction of the notification condition is determined, the viewer truly Even if the scene desired to be viewed is not broadcast, the viewer may receive the notification operation. Therefore, the notification condition can be set for a part of the character string constituting the character information, and whether or not a part of the character string targeted for the setting satisfies the notification condition. With the configuration in which the condition checking unit determines, the viewer can more clearly distinguish between the video that the user wants to watch and the video that the user does not want to watch.

Further, for example, in the above configuration, the plurality of character strings described according to the predetermined rule may be composed of a single or a plurality of BML documents.

Further, for example, in the above configuration, it may be possible to set as the notification condition that a specific character string included in a specific BML document is changed.

Also, for example, in the above configuration, within a predetermined time after the start of the notification operation,
You may make it provide the alerting prohibition means which prohibits the start of the alerting | reporting operation | movement by the said alerting | reporting means again.

As a result, even when keywords are continuously included in the character information, the notification operation is not continuously received, and the usability of the viewer is improved.

Further, for example, in the above configuration, the receiving unit receives a voice signal, and the character extracting unit includes a voice character converting unit that analyzes the voice signal and converts the voice signal into a character string. A character string may be extracted as the character information.

Thereby, even if subtitle information or a BML document is not included in the broadcast, the notification operation can be received if a notification condition (keyword) matching a specific scene to be viewed is set.

In addition, for example, in the above-described configuration, the display device may include a display screen that displays the character information, and the notification unit may be powered off and the condition check unit may determine that the notification condition is satisfied. The display screen may be turned on.

With this configuration, even when the display screen is turned off for power saving or the like, the display screen is automatically turned on if the notification condition is satisfied. Accordingly, the viewer can quickly view a scene desired to be viewed. On the other hand, since quick viewing is possible, the viewer can safely turn off the display screen and contribute to power saving.

In addition, for example, in the above configuration, when the information based on the signal received by the receiving unit is recordable, and when the condition matching unit determines that the notification condition is satisfied, the information is recorded in the recording unit. And a control unit that performs the above.

  Thereby, it is possible to reproduce and view the video of the scene desired to be viewed later.

In addition, for example, in the above configuration, the recording unit capable of recording information based on the signal received by the receiving unit, and the recording unit records the information, and the condition matching unit sets the notification condition. When satisfaction is determined, the information may include a control unit that adds chapter information for identifying the information from information other than that information.

As a result, when a recorded video or the like is reproduced and viewed later, a desired scene can be easily and immediately selected and reproduced.

As described above, according to the receiving terminal according to the present invention, it is possible to easily distinguish the received content desired by the viewer from the received content that is not so, and even if the display screen or the like is not confirmed. Thus, the desired received content can be surely viewed.

<< First Embodiment >>
Hereinafter, a first embodiment of a receiving terminal according to the present invention will be described with reference to the drawings. In the first embodiment, a mobile phone 1 that receives a digital broadcast and uses subtitle information included in the received digital signal will be described as an example of a receiving terminal according to the present invention. FIG. 1 is a block diagram showing an electrical configuration of the mobile phone 1.
(FIG. 1: Description of the configuration of the mobile phone 1)
The cellular phone 1 includes an antenna 11 that receives a signal broadcast from a satellite or a broadcast station (both not shown), a tuner 12 that demodulates a broadcast signal of a desired channel from the broadcast signal received from the antenna 11, and a tuner. 12, a recording medium 13 as a recording means capable of recording a TS (Transport Stream) demodulated in 12, a TS recorded on the recording medium 13 or a TS from the tuner 12, and a plurality of PES (Packetized Elementary Stream) and A demultiplexer (DEMUX) 14 that divides the data into section data, a control unit 15 that processes an independent PES (to be described later) output from the demultiplexer 14 and controls the operation of each unit in the mobile phone 1, and an output from the demultiplexer 14 Later-described video PES and audio PES
, A video decoder 16 and an audio decoder 17, a display screen 18 on which video (including subtitle text) is displayed, a speaker 19 to which audio is output, and a desired operation by being operated by the viewer. Is roughly constituted by an input unit 20 for inputting an instruction and a vibration unit 21 including a motor for vibrating the mobile phone 1. Note that the cellular phone 1 has an antenna (not shown) for transmitting and receiving radio waves related to a telephone call as a normal phone with a base station or the like (not shown), or a signal related to the voice inputted to the control unit 15 from outside. A microphone (not shown) or the like for providing a sound is also provided.

In addition, the control unit 15 receives subtitle information by receiving a notification condition storage unit 30 that stores a keyword (keyword as a notification condition) set by operating the input unit 20 and an independent PES described later from the demultiplexer 14. In addition to decoding, the text storage unit 31 for storing the subtitle information, the subtitle information stored in the text storage unit 31 and the keyword stored in the notification condition storage unit 30 are compared, and the comparison result will be described later. A condition checking unit 32 to be supplied to the controller 37, an output control unit 33 for driving the display screen 18 and the speaker 19 in response to signals sent from the video decoder 16 and the audio decoder 17 and a control signal from the main controller 37; A notification unit 34 that controls the vibration unit 21 and a re-notification prohibition time storage unit 35.
The main controller that controls the operation of each unit included in the control unit 15 and controls the tuner 12, the recording medium 13, and the demultiplexer 14 while receiving a signal based on the operation of the timer circuit 36 and the input unit 20. 37. The operations of the re-notification prohibition time storage unit 35 and the timer circuit 36 will be described later.

In the mobile phone 1 configured as described above, the control unit is configured so that the broadcast signal of the channel designated by the input unit 20 among the broadcast signals received by the antenna 11 is selected and demodulated by the tuner 12. 15 controls the tuner 12. At this time, the broadcast signal demodulated by the tuner 12 is converted to a digital signal TS and output to the recording medium 13 and the demultiplexer 14.

Note that the recording medium 13 may necessarily be interposed between the tuner 12 and the demultiplexer 14. In other words, the TS output from the tuner 12 is not directly supplied to the demultiplexer 14, but is temporarily set to a DVD-RAM (Digital Versatile Disk Random Ac).
cess memory), a hard disk, a video tape, or the like. In this case, the control unit 15 controls the recording medium 13 so as to read and reproduce the TS recorded on the recording medium 13, so that the TS recorded on the recording medium 13 is read out and sent to the demultiplexer 14. Sent out.

The TS that is output from the tuner 12 and then transmitted to the demultiplexer 14 is a digital signal in which fixed-length TS packets including a plurality of pieces of information such as caption text, video, and audio are continuous. Such a TS is a PID (Pa) indicating the type of packet content for each TS packet unit.
cket ID). Also, in the TS, when receiving and playing back the TS, SI (Service Information) / PSI (Pro
gram specific information) information and the like. The format and arrangement of information in each TS packet is recognized by section data such as SI / PSI information.

Due to the function of the demultiplexer 14, the TS packet including this section data is converted to T
When divided by S and sent to the control unit 15, the section data is analyzed by the control unit 15, and a PID indicating the type of TS packet having each PES in the channel desired by the viewer is set. The PID of the TS packet set in this way is given from the control unit 15 to the demultiplexer 14. Therefore, in the demultiplexer 14, the PID given from the control unit 15 and the TS sent from the tuner 12 or the recording medium 13.
The PID added for each TS packet is compared.

Then, the type of each TS packet is recognized from the comparison result, and the TS packet including the video information is converted into the video decoder 16 as the TS packet including the video information, and the TS packet including the audio information is converted into the audio PES.
Are sent to the audio decoder 17 as TS packets including subtitle information as independent PESs to the control unit 15 (more specifically, the text storage unit 31).

The video decoder 16 decodes the video information based on the video PES, and the audio decoder 17 decodes the audio information based on the audio PES. Then, the video information and audio information obtained by decoding are sent to the output control unit 33. Also, the text storage unit 31 decodes the caption information based on the independent PES.

Then, the output control unit 33 displays the display screen 18 so as to display the video including the caption text based on the video information generated by combining the caption information with the video information transmitted from the video decoder 16. Control. Further, the output control unit 33 is configured so that the sound is output from the speaker 19 based on the sound information transmitted from the audio decoder 17.
9 is controlled. The output control unit 33 also performs control to turn on / off the power to the display screen 18 under the control of the main controller 37.

In addition, the input unit 20 is provided with numeric keys 0 to 9, a determination key, and up / down / left / right direction keys for moving a cursor for designating a specific point on the display screen 18 (all keys are not shown).
Etc.

The mobile phone 1 has a foldable structure. When there is no operation on the input unit 20 for a certain period of time, the main controller 37 performs control to turn off the power of the display screen 18 (hereinafter, this control is referred to as “power saving control”).

(Subtitle text display method: 8-unit code)
In the digital broadcast according to the present embodiment, the caption text displayed together with the video on the display screen 18 is encoded by a system called 8-unit code at a broadcasting station (not shown). When encoding with this 8-unit code is performed, where the subtitle text is displayed on the display screen 18 (display position)
And subtitle control information such as subtitle text format (vertical writing, horizontal writing, horizontal scrolling, etc.) can be set. Therefore, to summarize, the subtitle sentence in this specification means the character string itself displayed together with the video on the display screen 18, and the subtitle information includes the character string (subtitle sentence) and subtitles other than the character string. Consists of control information. In addition, it can be said that the caption information or the caption text constituting the caption information is composed of a plurality of character strings described in accordance with a predetermined rule called 8-unit encoding.

(Figure 2: Explanation of operation Keyword condition)
Next, an operation example of the mobile phone 1 will be described with reference to the flowchart shown in FIG.
In step S <b> 1, the input unit 20 is operated so that the television program is displayed on the display screen 18. Subsequently, the viewer selects a television program by operating the input unit 20 (step S2). Then, the tuner 12 demodulates the broadcast signal of the selected channel. It is assumed that caption information is included in the broadcast signal of the selected channel. As a result, an image including a caption text is displayed on the display screen 18. For the sake of concrete explanation, it is assumed that the program broadcast on the selected channel is a soccer program (one that is actually playing a soccer game).

In step S3 which moves after finishing step S2, re-notification prohibition time T1 is set with 5 minutes, for example (step S3). The value (5 minutes) of the re-notification prohibition time T1 is stored in the re-notification prohibition time storage unit 35 via the main controller 37.

Subsequently, the viewer operates the input unit 20 to set a keyword as a notification condition (step S4). Here, it is assumed that a character string “goal” is set as a keyword. The set keyword is stored in the notification condition storage unit 30 via the main controller 37 (step S5).

Regardless of the set keyword, subtitle information is successively decoded by the text storage unit 31 from broadcast signals transmitted continuously one after another. The decoded subtitle information and the keyword (character string “goal”) stored in the notification condition storage unit 30 are sent to the condition matching unit 32 via the main controller 37, and a comparison process is performed (step S6). ).

In step S7, which is shifted to after finishing step S6, the comparison result in step S6 is evaluated, and when the caption text constituting the caption information matches the keyword (that is, the notification condition is satisfied), the process proceeds to step S8 described later. (Y in step S7), if they do not match, the process returns to step S6 (N in step S7), and the comparison process is performed again between the subtitle sentence and the keyword sent to the condition matching unit 32 next.

For example, if the subtitle sentence to be compared is “Shoot, but the ball hits the defender”, the subtitle sentence will contain the string “Goal”. Therefore, the process returns to step S6. On the other hand, when the subtitle sentence to be compared is “shoot. Decided. Goal.”, Since the subtitle sentence includes the character string “goal”, the process proceeds to step S8 described later. is there.

In step S8, when the power of the display screen 18 for displaying the caption text is off,
Power is turned on. Considering the relationship with step S7, when the power of the display screen 18 is off and the judgment result at step 7 is coincident (satisfaction), the power of the display screen 18 is turned on (this process is referred to as “screen Called ON control). In steps S1 to S7, the process of turning off the power is not clearly shown. However, the viewer operates the input unit 20 to turn on the power of the display screen 18 between the repeated processes of steps S6 and S7. If it is off, or if the main controller 37 is performing the “power saving control”, the power of the display screen 18 is off immediately before the process of step S8. Thus, when the process proceeds to step S8, step S8 is effective only when the power of the display screen 18 is off, and when the power of the display screen 18 is on,
The process of step S8 is not executed.

In step S9 which moves after finishing step S8, the alerting | reporting part 34 controls the vibration part 21, and vibrates the mobile telephone 1. FIG. Thereby, the viewer can know that the subtitle sentence matches the keyword even when the cellular phone 1 is folded and put in the pocket of clothes.

Even if the mobile phone 1 is owned, it is often difficult to continue to view the display screen 18 due to time constraints or the like (the mobile phone 1 is folded in the repetition of steps S6 and S7 described above). Happens frequently). In addition, this situation exists not only in the mobile phone 1 but also in a home television receiver. On the other hand, all the contents of the broadcast TV program cannot be viewed, but there is a demand that you do not want to overlook only a specific scene in the TV program (for example, a scene when a score is entered in a soccer program). strong. In addition, in sports broadcast programs such as soccer matches, there is a strong demand for knowing just the progress.

According to the mobile phone 1, such a request can be satisfied. This is because it is possible to recognize that the content of the television program has reached a specific scene by the operation of the vibration unit 21 in step S9. In place of the generation of vibration due to the operation of the vibration unit 21, the speaker 1
The keyword may be recognized by the viewer by emitting sound from 9, blinking of the display screen 18, emitting LED (not shown), or the like, or any combination thereof.

In step 9, the timer circuit 36 measures a time T <b> 2 from the start time of the vibration (notifying operation for the viewer) by the vibration unit 21.

When step S9 ends, the process proceeds to step S10, and it is determined whether the time T2 is equal to or longer than the re-notification prohibition time T1. If T2 <T1 is satisfied (N in Step S10), the determination process in Step S9 is performed again. If T2 ≧ T1 is satisfied (Y in Step S10).
After substituting 0 for time T2 (step S11), the process returns to step S6 described above.

That is, after reaching step S10 (after the start of the notification operation), if the time equal to or longer than the re-notification prohibition time T1 has not elapsed, the process of step S9 is not performed again (in other words, the re-notification prohibition time T1). Within this, the start of the re-notification operation is prohibited.This process is hereinafter referred to as “re-notification prohibition process”). This “re-notification prohibition process” is realized mainly by the timer circuit 36, the re-notification prohibition time storage unit 35, and the main controller 37, and it can be said that these constitute “notification prohibition means”.

For example, in a soccer program, once a goal is determined (score is entered), a person who plays the game frequently utters the word “goal” to explain the “goal” for a while. There are many cases. In this case, the character string “goal” is included in the subtitle sentence in conjunction with the utterance. However, it is normal that the viewer does not want the mobile phone 1 to vibrate each time. The re-notification prohibition time T1 is set as follows:
Such inconvenience for the viewer can be solved. Note that the setting of the re-notification prohibition time T1 in step S3 can be omitted, and if omitted, 0 is substituted as the re-notification prohibition time T1, for example. That is, through step S9, step S1.
When shifting to 0, the process immediately shifts to step S6 via step S11.

As described above, the mobile phone 1 includes the antenna 1 as a receiving unit that receives a broadcast signal.
1, receives a keyword setting as a notification condition by operating the input unit 20, receives a broadcast, and extracts a caption sentence that is character information from the received signal. The function of extracting the caption text is realized mainly by the demultiplexer 14 and the text storage unit 31, and these functions as “character extracting means”. The condition as the “condition matching means” determines whether or not the subtitle information satisfies a preset notification condition (a condition for determining whether or not to perform a “notification operation” of vibrating the vibration unit 21). The collation unit 32 determines. When the determination result is satisfactory, the notifying unit 34 and the vibrating unit 21 as “notifying means” perform the “notifying operation”. More specifically, the notification condition includes a keyword, and a subtitle sentence (in the above example, “
shoot. decided. goal. When the character included in “)” matches a preset keyword (“goal” in the above example), it is determined that the notification condition is satisfied, and the “notification operation” is performed.

(Figure 3: Range specification)
In the above step S4, the following notification condition can be added.
FIG. 3 is a diagram for explaining the notification condition to be added. In step S4, the area 18a in the display screen 18 is designated together with the setting of the keyword (“goal”). This designation can be performed by operating a cursor (not shown) on the display screen 18 by operating the up / down / left / right direction keys (not shown) of the input unit 20 or a pointing device (not shown). It can be so. Such user interfaces are generally G
Since it is called a UI (Graphical User Interface) and the operation method is the same as a general method, the details are omitted.

When such a notification condition is added, the condition matching unit 32 recognizes that the notification condition is satisfied when the character string “goal” is displayed in the area 18 a in the display screen 18. That is, in step S7, the processing does not proceed to step S8 just by saying “the keyword is included in the subtitle sentence”, but the processing proceeds to step S8 only when “the keyword is displayed in the area 18a”. It becomes like this. That is, it is determined whether or not there is a match with the keyword for only a part of the caption text displayed on the display screen 18.
In other words, the notification condition can be set for only a part of the character string constituting the caption sentence, and the condition matching unit 32 determines that a part of the character string that is the target of the setting is the notification condition. It is judged whether it is satisfied. The determination process in which the display position of the caption text on the display screen 18 is designated is the caption control information indicating the display position of the constituent caption text (this caption control information is included in the caption information as described above). It is possible to analyze and use.

(Recording start control)
In step S9 described above, the main controller 37 controls the recording medium 13 so as to start recording of the TS obtained by demodulation by the tuner 12 (this control is hereinafter referred to as “recording start control”). You may do it. Whether or not to start this recording is set by operating the input unit 20. Of course, the start of the recording may be replaced with the generation of vibrations due to the operation of the vibration unit 21 (step S9), or may be combined. Also,
In order for the control unit 15 to control the TS recorded in the recording medium 13 to be read out and reproduced, the “reproducing means” having a function of reproducing the TS recorded in the recording medium 13 is mainly composed of the control unit 15. It can be said that it is done. By this “recording start control”, the viewer can view the desired video scene later by playing back the video recorded on the recording medium 13.

In addition, after the start of the recording operation by the “recording start control”, a predetermined time (for example, 5
The recording operation may be stopped when a minute) elapses. By repeating the start and stop of this recording operation, the recording medium 13 automatically records only the desired video scene.

(Chapter hitting control)
Further, when the above-described step S9 is reached while the TS is being recorded on the recording medium 13 (when the notification condition is satisfied), the chapter information for identifying the TS at that time from the TS other than that time is displayed. In addition, the main controller 37 may control the recording medium 13 (this control is hereinafter referred to as “chapter hitting control”). Whether or not to add the chapter information is set by operating the input unit 20. When playing back video recorded on the recording medium 13, the video scene to which this chapter information is added can be easily and immediately selected and played back by performing a predetermined operation (input unit 20). . Of course, the addition of the chapter information may be replaced with the generation of vibration due to the operation of the vibration unit 21 (step S9), or may be combined. By this “chapter control”, the viewer can easily and immediately select and reproduce a desired video scene when the video recorded on the recording medium 13 is reproduced and viewed later. .

<< Second Embodiment >>
Hereinafter, a second embodiment of a receiving terminal according to the present invention will be described with reference to the drawings. In the second embodiment, a mobile phone 2 that receives a digital broadcast and uses a signal related to sound included in the received digital signal will be described as an example of a receiving terminal according to the present invention. FIG. 4 is a block diagram showing an electrical configuration of the mobile phone 2. In FIG. 4, the same parts as those in FIG.

Of the parts constituting the mobile phone 2, only unique parts different from the mobile phone 1 will be described. The control unit 40 included in the mobile phone 2 includes a speech character conversion unit 42 having a function of converting speech into characters, and includes a text storage unit 41 instead of the text storage unit 31 included in the mobile phone 1. ing. The mobile phone 2 is identical to the mobile phone 1 in other points.

The digital signal received by the antenna 11 includes an audio signal in which audio information is encoded, and the demultiplexer 61 sends the audio PES to the audio decoder 17 as an audio signal. The audio decoder 17 gives the voice character conversion unit 42 the voice information obtained by decoding the voice PES. The voice character conversion unit 42 converts the voice information into a character string by analyzing the voice information. This converted character string (hereinafter referred to as “speech converted character string”) is obtained by converting a sentence (such as Japanese) itself output from the speaker 19 into a character string. Then, the voice character conversion unit 42 gives the voice conversion character string to the sentence storage unit 41. That is, the phonetic character conversion unit 42 extracts a character string from the phonetic PES as character information. Also, it can be said that the audio PES is generated from a signal included in digital broadcasting. Note that the digital broadcast may or may not include subtitle information.

Further, it can be said that the phonetic character conversion unit 42 that analyzes the voice signal and converts it into a character string has a function as a “phonetic character conversion means”. The “character extraction means” having a function of analyzing the voice signal and converting it into a character string and extracting the converted character string as character information mainly includes a demultiplexer 14, an audio decoder 17, a voice character conversion unit. 42 and a sentence storage unit 41.

The operation of the mobile phone 2 is the same as the operation of the mobile phone 1 described with reference to FIG. That is, after passing through steps S1 to S5 in FIG. 2, the sentence storage unit 41 uses the main controller 37 to store the voice conversion character string in the same manner as the sentence storage unit 31 in the first embodiment handles the subtitle sentence. To the condition collation unit 32. In the condition matching unit 32, the keyword stored in the notification condition storage unit 30 and the voice conversion character string are similar to the comparison between the keyword stored in the notification condition storage unit 30 and the caption sentence in the first embodiment. Are compared (step S6
~ S7), the result is given to the main controller 37.

Then, when the character included in the voice conversion character string (that is, the sentence itself output from the speaker 19) matches the keyword (Y in step S7), the notification operation in step S9 in FIG. 2 is performed. Therefore, the viewer can view without missing the desired video scene. Even if captions and BML documents are not included in the broadcast, the notification operation can be received by setting a keyword that matches a specific scene to be viewed.

Note that the “recording start control” and the “chapter control” can also be applied to the mobile phone 2.

<< Third Embodiment >>
Hereinafter, a third embodiment of a receiving terminal according to the present invention will be described with reference to the drawings. In the third embodiment, a mobile phone 3 that receives a digital broadcast including a data broadcast that is a multimedia service will be described as an example of a receiving terminal according to the present invention. FIG. 5 shows the mobile phone 3
It is a block diagram which shows the electrical structure of. In FIG. 5, the same components as those in FIG.

In addition, data broadcasting here refers to multimedia coding system BML (Broadcast Ma
means multimedia broadcasting based on keup Language). The digital broadcast received by the mobile phone 3 may include caption information, but the usage method of the caption information is the same as that in the first embodiment.
(FIG. 5: Description of the configuration of the mobile phone 3)
In FIG. 5, what is different from that in FIG. 1 will be described. The TS output from the tuner 12 and sent to the demultiplexer 61 is a digital signal in which TS packets are continuous as in the first embodiment, but this TS is different from the TS in the first embodiment. The point is that the TS in the third embodiment includes information obtained by encoding multimedia data.

The demultiplexer 61 has the same function as the demultiplexer 14 in FIG. 1, separates multimedia data described in BML from the TS, and sends the multimedia data to the text storage unit 51. The multimedia data sent to the text storage unit 51 has a format called a section, and the text storage unit 51
The multimedia data is decrypted to obtain a BML document (a document described in a language according to a predetermined rule called BML), and the BML document is stored in itself.

The notification condition storage unit 50 stores notification conditions set by operating the input unit 20. The condition collation unit 52 compares the BML document stored in the text storage unit 51 with the notification condition, and gives the comparison result to the main controller 57. The main controller 57 includes an input unit 20
While controlling the operation of each unit included in the control unit 60 while receiving a signal based on the above operation, it controls the tuner 12, the recording medium 13, and the demultiplexer 61. Control unit 60
Are the sentence storage unit 31, the notification condition storage unit 30, the condition matching unit 32, and the main controller 37 in the control unit 15 (see FIG. 1), respectively, the sentence storage unit 51, the notification condition storage unit 50, the condition matching unit 52, and the main controller 37. The controller is the same as the controller 15 except that the controller 57 is replaced.
(FIGS. 6 and 7: Description of transmission method)
Next, a multimedia data transmission method in data broadcasting will be described with reference to FIGS. Multimedia data in data broadcasting is DSM-CC (Digital
Storage Media Command and Control) download carousel (referred to below)
Transmission in this system is referred to as “carousel transmission”). In a broadcasting station (not shown), files such as BML documents are expressed in units of resources, and these resources are collected in units of modules. One module is composed of a single resource or a plurality of resources.

Now, it is assumed that module 1 includes BML document A, module 2 includes BML document B, and module 3 includes BML document C and BML document D. Modules 1-3 are DD
It is divided into small files called B (Download Data Block) messages and transmitted. During this transmission, DII (Download Info) is transmission control information indicating the module configuration.
Indication) message is added, and the file between the two DIIs is repeatedly transmitted (
(See FIG. 6). In the mobile phone 3 which is a receiving terminal, a module necessary for display is identified by using the information indicated by DII and displayed on the display screen 18. In FIG. 6, DII and DD
Although only B is shown, other packets related to audio, video, etc. are sent from the broadcasting station to the mobile phone 3
Has been transmitted.

FIG. 7 shows an example of DII internal data. It should be noted that the description in FIG. 7 does not exactly conform to the standard for carousel transmission for convenience of explanation. Module 1,
Corresponding to 2 and 3, module IDs (moduleID) are assigned as 1, 2, and 3, respectively. Modules 1, 2, and 3 have module versions (module Ver
sion) is assigned. The module version values are all 0 as initial values.

When a change occurs in the contents of a module, the module version corresponding to the module in which the change has occurred is changed. This change in the contents of the module is referred to as “module update”. That is, when the content of the BML document A included in the module 1 is changed (update of the module 1), the value of the module version of the module 1 is changed from the value of the module version before the change occurs ( For example, it is incremented by 1). Similarly, when a change (update of module 2) occurs in the content of the BML document B included in module 2, the value of the module version of module 2 is
When the module version is changed from the value before the change and the content of the BML document C or BML document D included in the module 3 is changed (update of the module 3),
The module version value of module 3 is changed from the module version value before the change occurred.

When the data broadcast of the selected channel is first acquired, all DDBs are acquired based on DII, and BML documents corresponding to all the DDBs are stored in the text storage unit 51. Thereafter, referring to DII, the occurrence of update for each module is monitored, and when a module is updated, the DDB corresponding to the corresponding module is reacquired, and the reacquired DDB
A BML document corresponding to the DB is stored in the text storage unit 51.

The sentence storage unit 51, the notification condition storage unit 50, the condition collation unit 52, and the main controller 57
The control unit 60 may have the functions of the sentence storage unit 31, the notification condition storage unit 30, the condition collation unit 32, the main controller 37, and the control unit 15 in FIG. In that case, when the subtitle information is included in the digital broadcast received by the mobile phone 3, the mobile phone 3 can use the subtitle information in the same manner as the mobile phone 1.
(FIGS. 8 to 10: Explanation of operation)
Broadcast related to the module including the BML documents A, B, C, and D as described above is transmitted to the mobile phone 3.
Will be described with reference to FIG. 8, FIG. 9, and FIG. FIG. 8 is a flowchart for explaining the operation of the mobile phone 3, and FIG. 9 is a display screen 18 of the mobile phone 3.
It is a figure which shows the display state of. FIGS. 10A and 10B show BML document B,
And a character string described in the BML document D. Note that the BM in FIG.
The L document is for explaining the concept of operation, and is not described in accordance with the rules defined in BML for convenience of explanation. In the following description of the present embodiment, simply “BM”
What is described as “L document” includes all of the BML documents A to D.

In step S <b> 21, the input unit 20 is operated so that the television program is displayed on the display screen 18. Subsequently, the viewer selects the television program by operating the input unit 20 (step S22). Then, the tuner 12 demodulates the broadcast signal of the selected channel. The broadcast signal of the selected channel includes the above-described BML documents A, B,
It is assumed that multimedia data including C and D is included. For the sake of concrete explanation, it is assumed that the program broadcast on the selected channel is a baseball program (a program that provides information about a baseball game).

After selecting the channel in step S22, a predetermined operation is performed on the input unit 20, thereby
The contents of the L document A are displayed on the display screen 18 (step S23). This display screen 18
The contents of are shown in FIG. By describing BML documents according to the rules of BML,
A specific character string described in the BML document can be displayed after designating the display position, color, size, and the like. In FIG. 9A, baseball broadcast, score, player information, and other stadium are displayed in areas 70, 71, 72, and 73 in the display screen 18, respectively. In the state of FIG. 9A, when the areas 71, 72, and 73 are selected by operating the input unit 20 and the enter key (not shown) is pressed, the contents of the BML document B and the BML document are respectively displayed. The content by C and the content by the BML document D are displayed on the display screen 18.

In step S24, which is shifted to after step S23, the area 71 is selected and an enter key (not shown) is pressed down. Then, the contents of the BML document B are displayed on the display screen 18 (step S25). FIG. 9B shows a display screen 18 on which the contents of the BML document B are displayed.
It is a figure which shows the state of. In FIG. 9B, team a and team b are currently playing a baseball game, team a is the first and team b is the second, and the game has progressed to the back twice. (The back of the second time is finished and the table is not finished three times). 3
An arrow (cursor) 74 designates the part of the timetable.

FIG. 10A shows the BML document B when the display screen 18 is in the state shown in FIG.
The description content is shown. In the area 80, a value indicating the score of the three-time table in FIG. 9B is described, and currently “NULL characters” are described. When “NULL character” is described in this area 80, the portion indicating the score of the third time table in FIG. 9B (the portion indicated by the arrow 74) is blank.

Although the processing in the flowchart in FIG. 8 is not shown, if the area 73 (see FIG. 9A) is selected and the enter key (not shown) is pressed down, the contents of the BML document D are displayed. Displayed on the screen 18, the display screen 18 is as shown in FIG. FIG. 9 (c) shows that team c and team d are currently playing a baseball game, team c is the first player, team d is the second player, and the game has progressed to the back twice. Show. FIG. 10B shows the description content of the BML document D when the display screen 18 is in the state shown in FIG.
In the area 81, a value indicating the score of the three-time table in FIG. 9C is described, and currently “NULL characters” are described.

Now, the viewer who owns the mobile phone 3 says, “Team a and team b are playing baseball games,
It is assumed that there is a request that “when the score is displayed on the third time table (when the portion indicating the score on the third time table is not blank), the user wants to view the display screen 18”. In that case, in step S26 which moves to the end of step S25, the input unit 20 is operated so that the tip of the arrow 74 shows the table three times (just the state shown in FIG. 9B), and the enter key (invalid) Press down. The operation at this time may be performed using the GUI as described above.

In step S27, which proceeds after step S26, the contents set in step S26 are recorded in the notification condition recording unit 50. Specifically, the notification condition “change of contents of character string described in area 80 of BML document B” is recorded.

In step S28, the BML is analyzed by the main controller 37 analyzing DII.
Whether the module 2 (see FIG. 6) in which the document B is stored has not been updated (module 2)
Is not changed from the module version of module 2 obtained by the previous analysis). Here, the reason for judging only the update of the module related to the module 2 is that the BML document B is included in the module 2.

If the module 2 has not been updated (N in step S28), step S28 is performed.
Repeat the process. If the module 2 has been updated (Y in step S28),
Control goes to step S29.

In step S29, the condition matching unit 52 determines whether the notification condition stored in step S27 is satisfied. That is, it is determined whether the notification condition “change of contents of character string described in area 80 of BML document B” is satisfied. If the notification condition is not satisfied (N in step S29), the process returns to step S28 described above. If the notification condition is satisfied (Y in step S29), the process proceeds to step S30.

In step S <b> 30, the notification unit 34 controls the vibration unit 21 to vibrate the mobile phone 3. Thereby, even when the viewer folds the mobile phone 3 and puts it in the pocket of clothes, the viewer can recognize that the notification condition is satisfied.
When the baseball game of No. 1 progresses and the score is displayed on the table three times, the user wants to view the display screen 18 ”. Note that instead of generating vibration due to the operation of the vibration unit 21, the viewer may recognize the keyword match by emitting sound from the speaker 19, blinking of the display screen 18, light emission of an LED (not shown), or the like. They may be combined.

As described above, the cellular phone 3 receives notification data set by operating the input unit 20, receives the data broadcast, and extracts the BML document that is character information from the received signal. And B
It is determined whether the ML document satisfies a preset notification condition, and when the determination result is satisfied,
The “notification operation” is performed. Thus, the viewer does not miss a video of a specific scene that the user wants to watch, and can distinguish between a video that the user wants to watch without checking the display screen 18 and a video that the user does not want to watch. It becomes like this. It is also possible to check the progress of the TV program.

The BML document is composed of a plurality of character strings described according to a predetermined rule as described above. In addition, the notification condition “change of contents of character string described in area 80 of BML document B”, in other words, targets only “character string described in area 80 of BML document B”, and “ "Content change" is a notification condition. That is, the notification condition is BM
Part of a character string constituting an L document (consisting of BML documents A to D) (area 8 of BML document B)
It is possible to set only the character string described in 0). Then, the condition matching unit 52
It is determined whether a part of the character string to be set satisfies the notification condition (target content change).

By setting the notification condition in this way, even if the baseball game between team c and team d progresses and the area 81 of the BML document D may be changed, the notification operation (step S3) is performed.
0) is not performed. This is because even if the module 3 is updated, the determination result in step S28 is negative (N in step S28), and the process does not proceed to step S29. That is, the viewer can more clearly distinguish a video that the user wants to watch without confirming the display screen 18 from a video that the user does not particularly want to watch.

In the present embodiment, an example in which a BML document is composed of four BML documents A to D is shown. However, the BML document may be composed of a single BML document A, for example.

In addition, as described above, “a specific B constituting a BML document (consisting of BML documents A to D)”
The fact that a specific character string (area 80; see FIG. 10) included in the ML document (BML document B) is changed ”can be set as a notification condition, and the condition matching unit 52 can set the specific BML document (BML It is determined whether the notification condition is satisfied only when the module corresponding to document B) (module 2 in the above example) is updated. As a result, the condition matching unit 52
Only when the module 2 is updated, the process of step S29 may be performed, so that the processing load of the entire control unit 60 is reduced.

Further, “in step S28, it may be determined whether or not there is an update for all modules”. In other words, when the module corresponding to any one of the modules 1 to 3 is updated, the process may proceed to step S29. At this time, the condition collation unit 52 only needs to perform the process of step S29 when the module corresponding to any one of the modules 1 to 3 is updated. It can be said that the processing load is reduced. As described above, even if “in step S28, it is determined whether or not there is a module update for all modules”, the determination process in step S29 exists, and therefore “described in the area 80 of the BML document B”. Change the contents of the character string "
No notification operation (step S30) is performed even though no occurrence has occurred.
(Keyword condition)
Further, in step S26 described above, after the arrow 74 indicates a table three times and a determination key (not shown) is depressed, a keyword may be set by operating the input unit 20. For example, “1” is input as a keyword. In this case, in step S <b> 27, a notification condition that “the content of the area 80 of the BML document B is 1” is stored in the notification condition recording unit 50. In step S29, it is determined whether the condition that “the content of the area 80 of the BML document B is 1” is satisfied, and the processing in the case of satisfaction is the same as described above.

As described above, the notification condition includes a keyword (“1”) and a BML document (BML).
It is possible to set only a part of a character string (consisting of documents A to D) (a character string described in the area 80 of the BML document B) as a target, and the condition matching unit 52 is a target of the setting. It is determined whether or not a part of the character string satisfying the notification condition (condition that the content of the target is changed to “1”) is satisfied. Thus, even if the baseball game between team c and team d progresses and the area 81 of the BML document D is changed to “1”, the notification operation is not performed (the process does not proceed to step S30). ). That is, the viewer can more clearly distinguish a video that the user wants to watch without confirming the display screen 18 from a video that the user does not particularly want to watch.
(Event message transmission)
In step S28 in this embodiment, whether the module 2 (see FIG. 6) in which the BML document B is stored has not been updated (the module version of the module 2 is the module 2 of the module 2 obtained by the previous analysis). However, instead of this, event message transmission may be used. For example, in the determination process of step S28, if the event message sent from the broadcasting station to the mobile phone 3 by event message transmission comes at the specified time (if an event occurs).
Then, the process proceeds to step S29. In step S29, if the event of the event message causes the occurrence of the event to change the portion of the 3rd table in FIG. 9B (or the 3rd table portion matches the set keyword). If so, the process may proceed to step S30.
(Combination with the first and second embodiments)
Also in the third embodiment, it is possible to apply the operations in the first embodiment and the second embodiment. That is, a “re-notification prohibition process” using the re-notification prohibition time recording unit 35 and the timer circuit 36 is applicable. In addition, “screen ON” described in the first embodiment.
"Control" (see step S8 in FIG. 2), "recording start control", and "chapter hitting control" are also applicable. Further, the operation in the second embodiment may be enabled by providing the cellular phone 3 with the phonetic character conversion unit 42 in the second embodiment.

<< Other, deformation, etc. >>
(Application to communication)
In the first to third embodiments described above, an example in which the mobile phones 1 to 3 receive a broadcast signal is given. However, the signals used by the mobile phones 1 to 3 do not necessarily need to be based on broadcasting, and may be based on bidirectional communication. A signal by communication provided via a computer network such as the Internet may be received instead of a signal by broadcasting, and the configuration and operation described in the first to third embodiments may be applied.

That is, character information is automatically extracted from a signal by communication transmitted one after another, and a notification operation similar to that described above is performed after comparing and determining notification conditions including keywords and the like. In this case, for the mobile phones 1 to 3, only the received signals are different depending on whether they are broadcast or communication, and the internal operation is not different.

In addition, HTML (HyperText Markup Lan) is a language used on the Internet and the like.
The document described in HTML (HTML document) is also composed of a plurality of character strings described in accordance with a predetermined rule, and can be handled in the same manner as a BML document. Therefore, all the operations in the first to third embodiments are applicable, and such a mobile phone has the same operations and effects as described above. Of course, in communication, the same BML document as that in the third embodiment may be handled.
(Analog broadcasting)
In the first embodiment and the second embodiment, the broadcast is described as a digital broadcast. However, the broadcast in the first embodiment and the second embodiment may be an analog broadcast.
However, regardless of whether the broadcast is a digital broadcast or an analog broadcast, the transmission method of caption information needs to be closed captioning. That is, it is necessary to use a transmission method in which caption information and video information can be divided by the demapplexer 14.

The present invention relates to a mobile phone or PHS (Personal) capable of receiving signals by broadcasting or communication.
Suitable for portable terminals (portable receiving terminals) such as Handyphone System), receiving terminals such as television receivers and computers, etc., especially portable terminals equipped with a display screen for receiving broadcasts of TV programs and displaying their contents Suitable for TV receivers and computers.

1 is a block diagram showing an electrical configuration of a mobile phone according to a first embodiment of the present invention. 3 is a flowchart for explaining the operation of the mobile phone in FIG. It is a figure for demonstrating the modification of the operation | movement which the flowchart in FIG. 2 shows. It is a block diagram which shows the electric constitution of the mobile telephone which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the electric constitution of the mobile telephone which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the transmission system which the mobile telephone in FIG. 5 employ | adopts. It is a figure for demonstrating the transmission system which the mobile telephone in FIG. 5 employ | adopts. 6 is a flowchart for explaining the operation of the mobile phone in FIG. It is a figure which shows the example of a display of the display screen with which the mobile telephone in FIG. 5 is provided. It is a figure which shows the character information which the mobile telephone in FIG. 5 decoded.

Explanation of symbols

1, 2, 3 Mobile phone 11 Antenna 12 Tuner 13 Recording medium 14, 61 Demultiplexer 15, 40, 60 Control unit 16 Video decoder 17 Audio decoder 18 Display screen 19 Speaker 20 Input unit 21 Vibrating unit 30, 50 Notification condition storage unit 31, 41, 51 Text storage unit 32, 52 Condition matching unit 33 Output control unit 34 Notification unit 35 Re-notification prohibition time storage unit 36 Timer circuit 37, 57 Main controller 42 Spoken character conversion unit 70, 71, 72, 73, 80 81, 18a area

Claims (12)

Receiving means for receiving a broadcast signal;
Character extraction means for extracting character information from the received signal;
Condition collating means for judging whether the character information satisfies a preset notification condition;
A receiving terminal comprising: a notifying unit that performs a predetermined notifying operation when the condition checking unit determines that the notification condition is satisfied. The receiving terminal according to claim 1, wherein the receiving unit receives a signal by data broadcasting or broadcasting including caption information. Receiving means for receiving signals by communication;
Character extraction means for extracting character information from the received signal;
Condition collating means for judging whether the character information satisfies a preset notification condition;
A receiving terminal comprising: a notifying unit that performs a predetermined notifying operation when the condition checking unit determines that the notification condition is satisfied. The notification condition includes a keyword,
The condition matching unit, when the character included in the character information and the keyword match,
The receiving terminal according to claim 1, wherein the receiving terminal determines that the notification condition is satisfied. The character information is composed of a plurality of character strings described according to a predetermined rule,
The receiving terminal according to claim 1, wherein the notification condition can be set for a part of a character string constituting the character information. 6. The receiving terminal according to claim 5, wherein the plurality of character strings described in accordance with the predetermined rule are composed of a single or a plurality of BML documents. The receiving terminal according to claim 6, wherein the notification condition can be set to change a specific character string included in a specific BML document. 5. The receiving terminal according to claim 4, further comprising: a notification prohibiting unit that prohibits the start of the notification operation by the notification unit again within a predetermined time after the start of the notification operation. The receiving means receives an audio signal;
5. The character extraction unit includes a voice character conversion unit that analyzes the voice signal and converts the voice signal into a character string, and extracts the converted character string as the character information. Receiving terminal. A display screen for displaying the character information;
The said notification means turns on the power of the said display screen, when the power of the said display screen is OFF and the satisfaction of the said notification conditions is judged by the said condition collation means. Item 4. The receiving terminal according to Item 3. Recording means capable of recording information based on the signal received by the receiving means;
The receiving terminal according to claim 1, further comprising: a control unit that causes the recording unit to record the information when the condition matching unit determines that the notification condition is satisfied. . Recording means capable of recording information based on the signal received by the receiving means;
When the recording unit is recording the information, when the condition checking unit determines that the notification condition is satisfied, the control unit adds chapter information for identifying the information other than the information to the information. The receiving terminal according to claim 1, further comprising:

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