JP2012147156A - Broadcast receiver, broadcast transmitter, broadcasting system, and broadcasting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately transmit information on a broadcast station of an autonomous broadcasting system to user's broadcast receiver.SOLUTION: A broadcast reception unit 22 receives broadcast. A voice input unit 23 acquires a voice signal from outside. A voice analysis unit 32 performs voice analysis on whether information on the broadcast is superposed on the voice signal acquired by the voice input unit 23. If it is determined that the information on the broadcast is superposed as a result of the voice analysis performed by the voice analysis unit 32, a broadcasting control unit 33 sets channel information included in the information to the broadcast reception unit 22 to receive the broadcast.

Description

  The present invention relates to a broadcast receiving apparatus that receives a broadcast limited in space and time, a broadcast transmission apparatus that transmits the broadcast, a broadcast system, and a broadcast method.

  In Japan, with the complete transition of the TV broadcasting system from analog broadcasting to digital broadcasting in July 2011, a national level study on effective use of radio waves has been made. In the radio communication system based on the analog system, interference occurs when the frequency bands are close to each other, so that a “white space (blank band)” called a guard band is provided. On the other hand, in the radio communication system using the digital system, there is an advance in digital communication technology, and even if the frequency band is close, if the communication system is greatly different, communication can be performed with almost no interference. ing.

  In addition, there are “white spaces” that are not used depending on the region and time zone. In recent years, the creation of a mechanism for effectively using these “white spaces” has been promoted. As one of the usage applications, local area broadcasting (hereinafter also referred to as a voluntary broadcasting system as appropriate) has been proposed. The independent broadcasting system is mainly intended for area one-segment broadcasting that has a transmission power smaller than that of normal one-segment broadcasting (up to about 1 W). For example, it is a system suitable for a purpose of freely transmitting contents according to the purpose in a local community, such as private broadcasting in a school, a hospital, a shopping street, or the like.

JP 2007-13274 A JP 2007-13925 A JP 2010-68437 A

  As described above, since it is important for the independent broadcasting system to reliably transmit information to viewers such as students, patients, and shoppers, a push-type service provision form is fundamental. On the other hand, since the frequency band that can be used in the white space differs depending on the region and time zone, it is difficult to publicize the physical channel (that is, the frequency) of the channel selection destination as being fixed in advance.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for accurately transmitting information related to a broadcasting station of a voluntary broadcasting system to a broadcast receiving apparatus possessed by the user.

  A broadcast receiving apparatus according to an aspect of the present invention includes a broadcast receiving unit for receiving a broadcast, an audio input unit for acquiring an audio signal from the outside, and an audio signal acquired by the audio input unit with information about the broadcast If the information about the broadcast is superimposed as a result of the voice analysis by the voice analysis unit and the voice analysis unit that performs voice analysis whether or not is superimposed, the channel information included in the information is set in the broadcast reception unit, A broadcast control unit for receiving the broadcast.

  Another aspect of the present invention is a broadcast transmission apparatus. The apparatus includes a broadcast transmission unit for transmitting a broadcast and an audio output unit for outputting an audio signal on which information related to the broadcast is superimposed.

  Yet another embodiment of the present invention is a broadcasting system. This broadcast system is a broadcast system including a broadcast transmission device and a broadcast reception device, and the broadcast transmission device outputs a broadcast transmission unit for transmitting a broadcast and an audio signal on which information related to the broadcast is superimposed to the outside. An audio output unit. The broadcast receiving device includes a broadcast receiving unit for receiving a broadcast, an audio input unit for acquiring an audio signal from the outside, and whether or not information related to the broadcast is superimposed on the audio signal acquired by the audio input unit. If the information about the broadcast is superimposed as a result of the voice analysis by the voice analysis unit and the voice analysis unit, the broadcast control for setting the channel information included in the information to the broadcast reception unit and receiving the broadcast is performed. Part.

  Yet another embodiment of the present invention is a broadcasting method. In this method, a broadcast transmission step for transmitting a broadcast from a broadcast transmission device, an audio output step for outputting an audio signal on which broadcast information is superimposed from the broadcast transmission device to the outside, and the broadcast reception device acquires the audio signal from the outside The speech input step, the speech analysis step for performing speech analysis on whether or not the information related to the broadcast is superimposed on the speech signal acquired by the speech input step, and the information regarding the broadcast as a result of the speech analysis by the speech analysis step. A broadcast receiving step of setting channel information included in the information and receiving the broadcast.

  Note that any combination of the above-described components and a representation of the present invention converted between a method, an apparatus, a system, a recording medium, a computer program, and the like are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the information regarding the broadcast station of an independent broadcast system can be exactly transmitted to the broadcast receiver which a user possesses.

It is a figure which shows the structure of the broadcast transmission apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the data format of broadcast information. It is a figure which shows the structure of the broadcast receiver which concerns on Embodiment 2 of this invention. 6 is a flowchart (part 1) illustrating an operation example of the broadcast receiving apparatus according to the second embodiment. 12 is a flowchart (part 2) illustrating an operation example of the broadcast receiving apparatus according to the second embodiment.

  FIG. 1 is a diagram showing a configuration of broadcast transmission apparatus 100 according to Embodiment 1 of the present invention. The broadcast transmission device 100 is a device that serves as a broadcast station in a local area using a frequency band (that is, white space) that can be used spatially and temporally. The broadcast transmission device 100 includes an encoder 11, a broadcast transmission unit 12, an antenna 13, a broadcast information holding unit 14, a superimposition unit 15, and an audio output unit 16.

  The encoder 11 receives at least one of video data and audio data to be broadcast input from the outside (for example, a PC or a digital video camera) according to a predetermined standard (for example, H.264 / MPEG-4 AVC, Compression encoding is performed according to MPEG-2 AAC) as the audio standard.

  The broadcast transmission unit 12 modulates the digital stream generated by the encoder 11 and wirelessly transmits it as a digital broadcast via the antenna 13. Note that the transmission power is set to a value lower than the transmission power of one-segment broadcasting implemented in Japan, for example, less than 1W. Both “low power type” that can be used in relatively large places such as concert venues and stadiums, and “weak output type” that covers extremely narrow areas such as in and around the store without the need for a radio station license are possible. It is.

  The broadcast information holding unit 14 holds information related to the broadcast transmitted from the broadcast transmitting apparatus 100 (hereinafter simply referred to as broadcast information). The broadcast information includes at least channel information.

  FIG. 2 is a diagram illustrating an example of a data format of broadcast information. The broadcast information includes a broadcast station ID, frequency information, position information, area information, and broadcast time information. Of these pieces of information, essential information is frequency information. The frequency information is information indicating a physical channel used by the broadcasting station for broadcasting. In addition, the broadcast information may include a broadcast station name, a program title, and the like.

  Returning to FIG. The superimposing unit 15 superimposes broadcast information supplied from the broadcast information holding unit 14 on audio data to be output as audio input from the outside (for example, a PC or a CD player). An existing method may be used as a method for superimposing the broadcast information. For example, the broadcast information may be superimposed on the audio data in a time-sharing manner, the methods disclosed in Patent Documents 1 and 2 may be used, or an audio watermark or the like may be used. The audio data may be a signal outside the human audible band. In this case, only broadcast information may be transmitted.

  The audio output unit 16 outputs the audio signal on which the broadcast information is superimposed to the outside. A general speaker can be employed as the audio output unit 16. Note that the audio output from the audio output unit 16 may be the same as or different from the broadcast audio transmitted by the broadcast transmission unit 12. For example, BGM flowing inside and outside the store may be used as the sound output from the sound output unit 16 to the outside.

  FIG. 3 is a diagram showing a configuration of broadcast receiving apparatus 200 according to Embodiment 2 of the present invention. Broadcast receiving apparatus 200 according to Embodiment 2 is an apparatus that serves as a receiving terminal of a local area broadcasting system using a white space. Examples of the broadcast receiving device 200 include a mobile phone, a smart phone, a portable music player, a car navigation device, a game machine, a broadcast receiving dedicated device, and an electronic dictionary. In the following description, a mobile phone or a smartphone is assumed.

  The broadcast receiving apparatus 200 includes a broadcast receiving antenna 21, a broadcast receiving unit 22, an audio input unit 23, a communication antenna 24, a communication unit 25, an operation unit 26, a position detection unit 27, a display unit 28, an audio output unit 29, and a control. Unit 30 and storage unit 40.

  The broadcast receiving unit 22 receives a digital broadcast via the broadcast receiving antenna 21, demodulates the broadcast signal, and outputs the obtained digital stream to the control unit 30. In the present embodiment, it is assumed that digital broadcasts transmitted mainly by the broadcast transmitting apparatus 100 are received, but broadcasts other than local area broadcasts such as one-segment broadcasts can also be received.

  The voice input unit 23 acquires a voice signal from the outside and outputs it to the control unit 30. A general microphone can be adopted as the voice input unit 23. In the present embodiment, while the broadcast receiving device 200 is powered on, the audio input unit 23 basically collects sound in order to detect the audio signal output from the audio output unit 16 of the broadcast transmission device 100. to continue.

  The communication unit 25 transmits / receives data to / from an external device via the communication antenna 24. There are various forms of communication with an external device, but here they are drawn together to simplify the drawing. For example, a mobile terminal using communication with a base station via a mobile phone network, access to the Internet via a wireless LAN and an access point, short-range wireless communication (for example, Bluetooth (registered trademark), infrared communication) Communication with the Internet.

  The operation unit 26 receives a user operation and outputs it to the control unit 30. For example, various settings described later are accepted. The position detection unit 27 detects the current position of the broadcast receiving device 200 and outputs it to the control unit 30. For example, the position detection unit 27 can detect the current position of the broadcast receiving apparatus 200 using GPS.

  The display unit 28 displays the video supplied from the control unit 30. A liquid crystal display or an organic EL display can be used for the display unit 28. The audio output unit 29 outputs the audio supplied from the control unit 30 to the outside. As the audio output unit 29, a general speaker or headphone output can be adopted.

  The control unit 30 includes a determination unit 31, a voice analysis unit 32, a broadcast control unit 33, a call processing unit 34, an application execution unit 35, and a communication control unit 36. These configurations can be realized by an arbitrary processor, memory, or other LSI in terms of hardware, and can be realized by a program loaded in the memory in terms of software, but here by their cooperation. Draw functional blocks. Therefore, those skilled in the art will understand that these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

  The storage unit 40 includes a broadcast information holding unit 41 and an application holding unit 42. The broadcast information holding unit 41 holds the broadcast information described above. The broadcast information may be acquired from an audio signal acquired by the audio input unit 23, or controls an external device (for example, a broadcasting station of an independent broadcast system) using the communication unit 25 and the communication control unit 36. May be acquired from a server that is managed manually) via the Internet, or may be input by the user himself / herself.

  The application holding unit 42 holds various application programs (hereinafter simply referred to as applications) to be executed by the application execution unit 35. The application may be stored in advance, or may be downloaded via the communication unit 25 and the communication control unit 36 afterwards.

  Whether the determination unit 31 analyzes parameters necessary for reception, such as channel information, position information, and broadcast time information in local area broadcasting included in the broadcast information added to the audio signal collected by the audio input unit 23. Determine whether. More specific description will be given below.

  The determination unit 31 determines whether a call or a voice input related application is being executed (corresponding to a first determination unit in the claims). Examples of voice input related applications include voice recognition input and recording. The voice analysis unit 32 analyzes the voice signal acquired by the voice input unit 23. The voice analysis unit 32 performs voice analysis to determine whether broadcast information is superimposed on the voice signal acquired by the voice input unit 23. Further, the determination unit 31 stops the voice analysis by the voice analysis unit 32 when a call or a voice input related application is being executed. On the other hand, when a call or a voice input related application is not being executed, the voice analysis unit 32 is made to perform voice analysis in principle.

  The broadcast control unit 33 receives video data and audio data received by the broadcast reception unit 22 and decompressed and decoded by a decoder (not shown). Moreover, when the broadcast information is superimposed as a result of the sound analysis by the sound analysis unit 32, the broadcast control unit 33 sets the channel information included in the information in the broadcast reception unit 22, and receives the broadcast. In that case, the timing which becomes a trigger of a channel selection process is also controlled. A specific example of this control will be described later. The call processing unit 34 controls the communication unit 25, the voice input unit 23, and the voice output unit 29 to realize a call with the counterpart terminal device using the mobile phone network.

  The application execution unit 35 executes various applications. As the application, the audio input related application using the audio input unit 23 described above, the video / audio output related application using the display unit 28 and the audio output unit 29, and the video using the display unit 28 and not using the audio output unit 29 are used. There are output-related applications and voice output-related applications that use the voice output unit 29 without using the display unit 28.

  Examples of video / audio output related applications include games (with audio), video playback (with audio), music playback (with video), and the like. Examples of video output related applications include web browsing, e-mail, video playback (no audio), games (no audio), and the like. Examples of audio output related applications include music playback (no video), radio viewing (no text information), and the like.

  The communication control unit 36 controls communications other than calls. For example, a process of downloading an application from an external server and storing the application in the application holding unit 42, an e-mail transmission / reception process, and the like are controlled by the application execution unit 35.

  The determination unit 31 stops the analysis process of the audio signal when the local area broadcast is not performed due to the presence or absence of the position and time information obtained from the position detection unit 27 or the broadcast information itself. More specific description will be given below. When the determination unit 31 determines that there is no broadcast that can be received from the position detected by the position detection unit 27, the sound analysis unit 32 may stop the voice analysis (second determination unit in claims). Equivalent). As a premise of this processing, it is necessary that the broadcast information holding unit 41 holds broadcast information including at least a broadcast area. Further, when determining that there is no receivable broadcast at the current time, the determination unit 31 may stop the audio analysis by the audio analysis unit 32 (corresponding to the third determination unit in the claims). As a premise of this processing, it is necessary that the broadcast information holding unit 41 holds broadcast information including at least the broadcast time.

  When the newly acquired broadcast information is broadcast information of the same channel as the last selected local area broadcast, the broadcast control unit 33 does not perform new channel selection. That is, the previous state is maintained. When sufficient signal strength or electric field strength that can withstand viewing cannot be obtained, the broadcast control unit 33 does not perform broadcast video display and audio output.

  The broadcast control unit 33 controls not to display the received broadcast video on the display unit 28 and not to output the received broadcast audio to the audio output unit 29 when the video / audio output related application is being executed. Also good. Also, the broadcast control unit 33 controls the audio output unit 29 to output the received broadcast audio without displaying the received broadcast video on the display unit 28 when the video output related application is being executed. Also good. In addition, the broadcast control unit 33 may display the received broadcast video on the display unit 28 while the audio output related application is being executed, and may control the received broadcast audio not to be output to the audio output unit 29. Good.

  In addition, when the setting and operation different from these controls are made | formed by the user operation from the operation part 26, the broadcast control part 33 follows the setting and operation. For example, even if the above-described video / audio output related application, video output related application or audio output related application is being executed, if the setting for switching to viewing of local area broadcasting is made automatically or forcibly, broadcast control is performed. The unit 33 performs such control.

  Further, the specification may be such that the validity / invalidity of the audio analysis process, the channel selection process, the broadcast video display process, and the broadcast audio output process can be independently set due to user operation. At that time, the user may be able to set the validity / invalidity at an arbitrary timing by pressing a button provided on the operation unit 26 or the like. In addition, before the audio analysis unit 32 starts audio analysis processing and the broadcast control unit 33 starts channel selection processing, broadcast video display processing, or broadcast audio output processing, an OSD (On Screen Display) pop-up message, notification sound, LED The user may be requested to approve the start of processing using a peripheral device. Further, the processing result may be notified to the peripheral device.

  4 and 5 are flowcharts showing an operation example of the broadcast receiving apparatus 200 according to Embodiment 2. FIG. As described above, since it is uncertain whether or not local area broadcasting (indicated as LA broadcasting in FIGS. 4 and 5) is being performed depending on the region and time zone, the broadcast receiving device 200 It is important to get the location and the current time.

  The determination unit 31 determines whether or not the current position of the broadcast receiving device 200 exists in the area where the local area broadcast is performed (S10). If it does not exist in the area where the local area broadcast is performed (N in S10), the processing does not proceed to the following. The determination process in step S10 is continued periodically (for example, every other minute).

  When it exists in the implementation area of local area broadcasting (Y of S10), the determination part 31 determines whether the present time corresponds to the implementation time of local area broadcasting (S11). If the current time does not correspond to the implementation time of the local area broadcast (N of S11), the process does not proceed to the following process and returns to step S10. When the current time corresponds to the local area broadcast implementation time (Y in S11), the process proceeds to the following process.

  The current position and time information of the broadcast receiving device 200 can be acquired from an external communication module such as a broadcast tuner in the broadcast receiving unit 22, a modem in the communication unit 25, a network module or Bluetooth, and a GPS in the position detection unit 27. It is. For example, the current position can be estimated from the position of the base station nearest to the broadcast receiving apparatus 200 via a modem. Further, it is possible to acquire a current position with high accuracy using GPS. From these pieces of information, information with high accuracy may be extracted and comprehensive determination processing may be performed. In addition, information on the area and time zone in which local area broadcasting is performed can be acquired in advance, but can also be acquired sequentially via these external communication modules.

  Next, the determination unit 31 determines whether or not the voice input unit 23 is in a priority function (S12). Here, “priority function” corresponds to the execution of the voice input related application. If the voice input unit 23 is in the priority function (Y of S12), the execution of the voice input related application is continued (S13), and when the application ends, the process returns to step S10. For example, when the user is using Skype (registered trademark), it is necessary to use the voice input unit 23. Of course, in the case of a general telephone, it is necessary to use the voice input unit 23 as well.

  When the voice input unit 23 is not in the priority function (N in S12), the voice analysis unit 32 extracts broadcast information from the voice signal acquired by the voice input unit 23 (S14). The broadcast information can be extracted from the music to which the broadcast information is added, for example, using the methods disclosed in Patent Documents 1 and 2 above.

  The voice analysis unit 32 cannot complete the extraction of broadcast information from the voice signal acquired by the voice input unit 23 (N in S15). Return to step S10. When the extraction is completed (Y in S15), the process proceeds to the following process.

  The determination unit 31 determines whether the current time corresponds to the implementation time of the local area broadcast from the broadcast time information included in the extracted broadcast information (S16). If the current time does not correspond to the local area broadcast time (N in S16), the process returns to step S10. If the current time corresponds to the local area broadcast implementation time (Y in S16), the process proceeds to the following process. Note that the determination process in step S11 is a determination process that skips the voice analysis process when the local area broadcast and detailed broadcast information can be definitely obtained from the external communication module, and is the same as the determination process in step S16. Is different.

  Next, the broadcast control unit 33 determines whether or not the channel included in the extracted broadcast information is different from the channel of the local area broadcast that was selected last (S17). If they are the same (N in S17), no new channel selection is performed and the process returns to step S10. If they are different (Y in S17), a new channel is selected (S18). The broadcast control unit 33 determines whether or not a sufficient signal strength or electric field strength that can withstand viewing can be obtained in the channel of the new channel selection destination (S19). That is, it is determined whether or not viewing is possible. When viewing is not possible (N in S19), the broadcast video is not output to the display unit 28 and the broadcast audio is not output to the audio output unit 29, and the process returns to step S10. If viewing is possible (Y in S19), the process proceeds to the following process.

  Turning to FIG. The broadcast control unit 33 determines whether the display unit 28 is in a priority function (S20). Here, “priority function” corresponds to the execution of the video output related application. If the display unit 28 is in the priority function (Y in S20), it is determined whether the audio output unit 29 is in the priority function (S21). Here, “priority function” corresponds to the execution of the audio output related application. If the audio output unit 29 is in the priority function (Y of S21), the execution of the video / audio output related application is continued (S22). For example, when the user is playing a game, it is necessary to use both the display unit 28 and the audio output unit 29. When the audio output unit 29 is not in the priority function (N in S21), the broadcast control unit 33 outputs broadcast audio to the audio output unit 29 (S23). At the same time, the execution of the video output related application is continued (S24), and when the application ends, the process returns to step S10. For example, when the user is creating a mail, the display unit 28 needs to be used, but the voice output unit 29 does not need to be used.

  When the display unit 28 is not in the priority function (N in S20), the broadcast control unit 33 outputs the broadcast video to the display unit 28 (S25). Next, the broadcast control unit 33 determines whether or not the audio output unit 29 is in a priority function (S26). If the audio output unit 29 is in the priority function (Y in S26), the execution of the audio output related application is continued (S27), and when the application ends, the process returns to step S10. For example, when the user is playing music, the display unit 28 does not need to be used, but the audio output unit 29 needs to be used. If the audio output unit 29 is not in the priority function (N in S26), the broadcast control unit 33 outputs broadcast audio to the audio output unit 29 (S28).

  The determination unit 31 determines whether an instruction to end the broadcast information sound collection process has been given (S29). While the end instruction is not given (N in S29), the process returns to step S10 and the above-described processing is continued. If an end instruction has been given (Y in S29), the broadcast information sound collection processing ends.

  As described above, the output control of the broadcast video and the broadcast audio is performed independently depending on the usage status of the display unit 28 and the audio output unit 29. In addition, you may design the reference | standard of the priority function determination in step S12, step S20, step S21, and step S26 so that a user setting is possible. For example, if the setting is made such that viewing of the local area broadcast is given the highest priority, the broadcast control unit 33 automatically or forcibly performs the local area broadcast even if the user is performing some work (for example, mail creation or a game). Switch to watching. In addition, by enabling the user to arbitrarily set the audio analysis processing, channel selection processing, broadcast video display processing, and broadcast audio output processing enable / disable, automatic channel selection function for local area broadcasting by collecting broadcast information It is also possible to invalidate itself.

  As described above, according to the first and second embodiments, broadcast information is superimposed on an audio signal and output, so that information on the broadcast station of the independent broadcast system is accurately transmitted to the broadcast receiver owned by the user. be able to. Also, a broadcasting system that combines the broadcast transmitting apparatus 100 according to the first embodiment and the broadcast receiving apparatus 200 according to the second embodiment is optimal for push-type broadcasting services. A push-type broadcasting service is to reliably convey information to viewers. In other words, it is important to force viewing. In the broadcast system, the broadcast transmitting apparatus 100 adds a physical channel that is a channel selection destination, broadcast time information, and the like to an audio signal and outputs the audio signal. The broadcast receiving apparatus 200 can perform automatic channel selection by receiving and analyzing the audio signal.

  Further, when the audio input unit 23 is being used by a call or an application in the broadcast receiving apparatus 200, power consumption can be reduced by stopping the audio analysis processing. Further, by handling broadcast video and broadcast audio separately, local area broadcast can be pushed to the maximum extent within a range that does not prevent execution of an application using the display unit 28 or the audio output unit 29.

  As the broadcasting system, for example, the following usage forms are conceivable. In a shopping street, when a seller wants to convey advertisements and special sales information for attracting customers to the buyer, announcements and music are played from the on-site speaker. By adding channel information for local area broadcasting to the announcement or music in advance, the broadcast receiving apparatus 200 owned by the buyer automatically selects a channel broadcasting detailed information.

  The present invention has been described based on some embodiments. It is understood by those skilled in the art that these embodiments are exemplifications, and that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. By the way.

  For example, priority information indicating importance or urgency may be further added as a parameter to broadcast information added to an audio signal. In this case, the broadcast receiving apparatus 200 can perform the following processing. The determination unit 31 may determine whether or not to perform automatic channel selection according to the priority level. For example, when the priority level is the highest (emergency emergency broadcast such as disaster is assumed), even if a call or application is executed on the broadcast receiving apparatus 200, the local area broadcast is output as video and audio. In addition, when the priority level is minimum, even if the application is not executed, if the remaining battery level is equal to or less than a predetermined value, the local area broadcast is not output as a video / audio.

  When broadcast information is detected, the broadcast control unit 33 may simply hold the broadcast information in the broadcast information holding unit 41 without automatically selecting the local area broadcast. The user can view the local area broadcast using the broadcast information at an arbitrary timing. When broadcast information is detected, the broadcast control unit 33 automatically selects a local area broadcast, but records the video / audio in the storage unit 40 without outputting it to the display unit 28 and the audio output unit 29. Also good. The user can reproduce the video and audio at an arbitrary timing.

  Also, the broadcast information is not limited to the method of acquiring from the audio signal. For example, the communication unit 25 may acquire the broadcast information from another device that holds the broadcast information using a mobile phone network, a wireless LAN, short-range wireless communication, or the like.

  100 broadcast transmission device, 12 broadcast transmission unit, 16 audio output unit, 200 broadcast reception device, 22 broadcast reception unit, 23 audio input unit, 27 position detection unit, 28 display unit, 29 audio output unit, 30 control unit, 31 determination Part, 32 voice analysis part, 33 broadcast control part.

Claims (10)

A broadcast receiver for receiving broadcasts;
An audio input unit for acquiring an audio signal from the outside;
A voice analysis unit that performs voice analysis as to whether or not information related to broadcasting is superimposed on the voice signal acquired by the voice input unit;
As a result of voice analysis by the voice analysis unit, when information related to the broadcast is superimposed, channel information included in the information is set in the broadcast reception unit, and a broadcast control unit that receives the broadcast;
A broadcast receiving apparatus comprising: A first determination unit that determines whether a call or a voice input related application is being executed;
The broadcast receiving apparatus according to claim 1, wherein the first determination unit stops voice analysis by the voice analysis unit when the call or the voice input related application is being executed. A holding unit for holding information on broadcasting including at least a broadcasting area;
A position detector for detecting the position of the broadcast receiver;
A second determination unit that determines whether there is a broadcast that can be received from the position detected by the position detection unit;
The said 2nd determination part stops the audio | voice analysis by the said audio | voice analysis part, when it determines with the broadcast which can be received from the position detected by the said position detection part not existing. The broadcast receiving apparatus described. A holding unit for holding information about broadcasting including at least broadcasting time;
A third determination unit that determines whether there is a broadcast that can be received at the current time;
The broadcast reception according to any one of claims 1 to 3, wherein when the third determination unit determines that there is no broadcast that can be received at the current time, the audio analysis by the audio analysis unit is stopped. apparatus. A display for displaying video;
An audio output unit for outputting audio to the outside,
When the video / audio output-related application using the display unit and the audio output unit is running, the broadcast control unit does not display the received broadcast video on the display unit, and receives the received broadcast audio as the audio. The broadcast receiving apparatus according to claim 1, wherein the broadcast receiving apparatus is not output to an output unit. A display for displaying video;
An audio output unit for outputting audio to the outside,
The broadcast control unit causes the audio output unit to output the received broadcast audio without displaying the received broadcast video on the display unit when a video output-related application using the display unit is being executed. The broadcast receiving apparatus according to claim 1. A display for displaying video;
An audio output unit for outputting audio to the outside,
The broadcast control unit displays the received broadcast video on the display unit and does not output the received broadcast audio to the audio output unit when an audio output related application using the audio output unit is being executed. The broadcast receiving apparatus according to claim 1. A broadcast transmitter for transmitting the broadcast;
An audio output unit for outputting an audio signal on which information related to the broadcast is superimposed;
A broadcast transmission apparatus comprising: A broadcast system comprising a broadcast transmitter and a broadcast receiver,
The broadcast transmitting device is:
A broadcast transmitter for transmitting the broadcast;
An audio output unit for outputting an audio signal on which information related to the broadcast is superimposed, and
The broadcast receiving device is:
A broadcast receiving unit for receiving the broadcast;
An audio input unit for acquiring an audio signal from the outside;
A voice analysis unit that performs voice analysis as to whether or not information related to broadcasting is superimposed on the voice signal acquired by the voice input unit;
As a result of audio analysis by the audio analysis unit, when information related to the broadcast is superimposed, channel information included in the information is set in the broadcast reception unit, and the broadcast control unit is configured to receive the broadcast. A featured broadcast system. A broadcast transmission step of transmitting a broadcast from the broadcast transmission device;
An audio output step for outputting an audio signal on which information related to the broadcast is superimposed from the broadcast transmitting device;
An audio input step in which the broadcast receiving device acquires an audio signal from the outside;
A voice analysis step for voice analysis to determine whether or not information related to the broadcast is superimposed on the voice signal acquired by the voice input step;
As a result of voice analysis by the voice analysis step, when information related to the broadcast is superimposed, a channel reception step for setting the channel information included in the information and receiving the broadcast; and
A broadcasting method comprising:

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