WO2010110357A1 - 放送受信機、放送受信機制御方法、放送局特定方法、放送受信機制御プログラム、放送局特定プログラム - Google Patents
放送受信機、放送受信機制御方法、放送局特定方法、放送受信機制御プログラム、放送局特定プログラム Download PDFInfo
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- WO2010110357A1 WO2010110357A1 PCT/JP2010/055189 JP2010055189W WO2010110357A1 WO 2010110357 A1 WO2010110357 A1 WO 2010110357A1 JP 2010055189 W JP2010055189 W JP 2010055189W WO 2010110357 A1 WO2010110357 A1 WO 2010110357A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
- H04H20/22—Arrangements for broadcast of identical information via plural broadcast systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
Definitions
- the present invention relates to a broadcast receiver for both broadcast wave type broadcast and IP type broadcast, a method for controlling the broadcast receiver, and a program for causing a computer to execute the method.
- IP broadcasts that deliver content such as broadcast programs over the Internet, such as VOD (Video on Demand) and terrestrial digital television broadcast IP (Internet Protocol) retransmission, and Internet radio, etc.
- Internet radio can be viewed on a PC (personal computer) connected to the Internet using a web browser etc.
- VOD is viewed using a receiver such as a television or STB (set top box) connected to the Internet It is possible.
- IP re-transmission of terrestrial digital television broadcasting can be viewed by using an STB connected to NTT's Next Generation Network (NGN).
- NTN Next Generation Network
- Patent Document 1 discloses a receiving apparatus in which Internet distribution content can be viewed with limited area (paragraphs 0023 and 0025 of FIG. 1 and FIG. 1).
- the receiver acquires current latitude and longitude information of the receiver using GPS (Global Positioning System) (81 in FIG. 6 of Patent Document 1), and a flagged country area, ie, the user is Sky Perfect etc. Search the countries that have received a contract with the satellite broadcasting platform provider of the country (see 82 in Figure 5 and 6 in Patent Document 1), and if the current position is within the reception contract area, the content is output (84 YES, 88 of FIG. 6 of Patent Document 1).
- GPS Global Positioning System
- Patent Document 2 discloses an IP broadcast system (FIGS. 1 and 2 of Patent Document 2). According to the broadcast system, information on the user selection channel and the position of the IP broadcast terminal is sent from the IP broadcast terminal (set top box) to the IP broadcast server (S23 and S24 in FIG. 4 of Patent Document 2). Whether or not the position is included in the browsing area of the selected channel is determined with reference to the operating area table (S25 and paragraph 0051 in FIG. 4 of Patent Document 2), and it is determined that it is included. Transmits data of the selected channel from the IP broadcast server to the IP broadcast terminal (paragraph 0051 of Patent Document 2 and S27 to S29 of FIG. 4). In the operation area table, areas where the IP broadcast terminal enables its operation are stored for each channel (paragraph 0047 of Patent Document 2).
- Patent Document 3 discloses a viewing terminal (mobile phone) capable of receiving content from both a broadcast network and a mobile communication network (FIG. 1 of Patent Document 3).
- the viewing terminal transmits the ID of the broadcasting station of the content to the viewing management server via the mobile communication network when the content quality on the broadcasting network side is lowered (for example, S02 and S04 in FIG. 4 of Patent Document 3).
- the viewing management server searches the corresponding reproduction telephone number or reproduction URL with reference to the content storage information (FIG. 2 of Patent Document 3), and returns it to the viewing terminal (for example, S05, S06 of FIG.
- the viewing terminal accesses the returned reproduction telephone number or reproduction URL, receives the content from the simultaneous retransmission server at the access destination, and reproduces the content (see, for example, FIG. S08 to S10).
- Patent Document 3 further discloses restricting viewing of content of mobile communication network distribution in a viewing terminal based on broadcast station specification information (paragraph 0005 of Patent Document 3).
- the broadcast receivers of Patent Documents 1 and 2 do not output anything when the output of the Internet broadcast content is prohibited, and the convenience is low.
- the broadcast receiver of Patent Document 3 switches to the mobile communication network and outputs the content of the mobile communication network when the content quality on the broadcast network side is low, but when the broadcast wave is an analog broadcast wave
- the content quality of the analog broadcast wave is usually inferior to the content quality of the Internet broadcast, and the user is given priority to view the low quality broadcast.
- An object of the present invention is to provide a broadcast receiver, a control method, and a program capable of effectively outputting both broadcasts in a broadcast receiver for broadcast wave type broadcast and IP type broadcast.
- IP-type broadcast includes all broadcasts for distributing contents via a network (in particular, the Internet) using IP (Internet Protocol), and at least “Internet broadcast”, “IP “Broadcast” and “IP Retransmission” shall be included.
- the broadcast receiver according to the first aspect of the present invention is a broadcast receiver for both broadcast wave type broadcast and IP type broadcast, and basically corresponds to the content of the broadcast wave type broadcast of the selected station or the broadcast wave type broadcast
- a broadcast output unit for outputting the content of the IP type broadcast attached and, when the content of the IP type broadcast of the selected station can be output, the content of the IP type broadcast of the selected station is outputted to the broadcast output unit
- the output control unit is configured to cause the broadcast output unit to output the content of the broadcast wave type broadcast of the selected station.
- the broadcast receiver is a broadcast receiver for both broadcast wave type broadcast and IP type broadcast, and basically, the contents of the broadcast wave type broadcast of the selected station or the broadcast wave type
- a broadcast output unit that outputs an IP-type broadcast content associated with a broadcast, and an IP-type broadcast content of the selected station when the IP-type broadcast of the selected station can be output, and the content of the IP-type broadcast of the selected station does not include audio.
- it is composed of an output control unit that causes the content output unit to output sound of broadcast wave type broadcast and moving image or still image of IP type broadcast.
- the broadcast receiver basically comprises a current position detection unit for detecting the current position, a frequency detection unit for detecting the frequency of the broadcast wave of the selected station, and the broadcast of the broadcast wave If a server search unit for searching for a distribution server of IP type broadcast associated with the wave type broadcast based on the detected current position and frequency, and a distribution server to be searched are found, the found distribution server is accessed It comprises the access part which supplies the delivery content of IP type
- the present invention also provides a broadcast receiver control method or a broadcast station identification method as a second embodiment.
- the broadcast receiver control method according to the first aspect of the present invention is basically a broadcast receiver control method for both broadcast wave type broadcast and IP type broadcast, and a selected station can basically output IP type broadcast And, if the selected station can output IP-type broadcast, the content of the IP-type broadcast of the selected station is output, and if the selected station can not output IP-type broadcast, the selected station Outputting the content of the broadcast wave type broadcast of
- a broadcast receiver control method according to a second aspect of the present invention is a control method of a broadcast receiver for both broadcast wave type broadcast and IP type broadcast, and basically, outputs IP type broadcast of the selected station Determining whether it is possible, determining whether the content of the IP-type broadcast of the selected station does not include audio and is only a moving image or a still image, and when the IP-type broadcast of the selected station can be output, Step of causing the content output unit to output the sound of broadcast wave type broadcast and the moving image or
- the current position detection step of detecting the current position the frequency detection step of detecting the frequency of the broadcast wave of the selected station, and the detected current position and frequency
- the present invention provides, as a third embodiment, a program that causes a computer to execute the above method.
- a program according to a first aspect of the present invention is a broadcast receiver control program, which causes a computer to execute the above broadcast receiver control method.
- a program according to a second aspect of the present invention is a broadcast station identification program, which causes a computer to execute the broadcast station identification method.
- both broadcasts can be output effectively in a broadcast receiver for broadcast wave type broadcast and IP type broadcast.
- FIG. 5 is a sequence diagram of a processing portion that allows an IP broadcast output in the broadcast switching method of FIG. 3;
- FIG. 5 is a sequence diagram of a processing portion for prohibiting IP broadcast output in the broadcast switching method of FIG. 3;
- FIG. 3 is a structural diagram of table information held by the broadcast receiver in FIG. 2 in order to search for an access destination URL. It is the figure which entered concrete data in the corresponding
- FIG. 5 is a flowchart of a broadcast receiver control method.
- IP broadcast is used in the concept including Internet broadcast and IP retransmission. That is, all broadcasts that deliver broadcast content from a server to a broadcast receiver via a network using IP are defined as "IP broadcasts". Further, in the embodiment of FIGS. 1 to 14, the case where the broadcast wave is an analog radio broadcast is described. Furthermore, “IP broadcast” in the description of the embodiment of FIGS. 1 to 14 is particularly “IP retransmission”, that is, a broadcast in which a program identical to a broadcast program by radio broadcast waves is distributed almost simultaneously on the Internet. There is.
- a broadcast system 10 includes, as main components, a broadcast station 11, receivers for both broadcast waves and IPs such as a stationary broadcast receiver 12 and a mobile broadcast receiver 13, and the Internet 16.
- the mobile broadcast receiver 13 measures the current position by, for example, GPS radio waves from the GPS satellites 17.
- the broadcast station 11 broadcasts a program from the transmission antenna 19 by broadcast waves (radio waves) according to the schedule edited in the editing room 20, and broadcasts almost simultaneously via the Internet 16.
- the receiver which comprises the broadcast system 10 also includes an on-vehicle type. Although only one broadcast station 11 is illustrated in the broadcast system 10, the actual broadcast system 10 includes a plurality of broadcast stations 11. Although only two receivers are shown for convenience of illustration, the actual broadcast system 10 includes a large number of receivers. In each receiver, the desired broadcast station 11 is selected by the user, and the broadcast content of the broadcast station 11 is output. Each broadcast station 11 has its broadcast target area defined by law.
- Dual-purpose receivers such as the stationary broadcast receiver 12 and the mobile broadcast receiver 13 receive broadcast waves from the transmitting antenna 19 and output video and / or audio of the program from the monitor or speaker of the own device. .
- the dual purpose receiver is also distributed to each broadcast station 11 via the Internet 16 by IP broadcast the same program as the broadcast wave from the transmission antenna 19 only when it is present in the broadcast target area. And its output is allowed.
- the stationary broadcast receiver 12 and the mobile broadcast receiver 13 are connected to the Internet 16 by wireless or wired communication, and receive an IP broadcast program from the Internet 16 via the wireless or wired communication.
- the stationary broadcasting receiver 12 or the mobile broadcasting receiver The output quality of the program at 13 is higher in IP broadcasts than in broadcast waves. Therefore, as described later, in the stationary broadcast receiver 12 and the mobile broadcast receiver 13, the output of the IP broadcast is prioritized over the output of the broadcast wave.
- IP broadcast content is the same as broadcast wave content.
- IP broadcast contents include video, still images, and other contents such as advertisement information in addition to broadcast wave contents.
- IP broadcast content is content completely different from broadcast wave content.
- the broadcast system 10 may be any of (a) to (c).
- FIG. 2 is a block diagram of the main part of the broadcast receiver 21.
- the broadcast receiver 21 is a generic term for the stationary broadcast receiver 12 and the mobile broadcast receiver 13.
- the broadcast receiver 21 may be installed at a predetermined place in a building such as a house as the stationary broadcast receiver 12, may be carried by a user as the mobile broadcast receiver 13, and may be installed in a car. Including what is The broadcast receiver 21 frequently goes in and out of the broadcast target area of the broadcast station 11 to view and listen to, particularly when it is a portable type or an on-vehicle type, and the IP station 11 broadcasts the IP broadcast of the broadcast station 11. It is desirable to control the output of the broadcast receiver 21 appropriately only when the broadcast receiver 21 exists in the broadcast target area of the broadcast wave associated with the IP broadcast.
- the antenna 22 captures radio waves of terrestrial analog radio broadcasts from the transmission antenna 19 (FIG. 1), and the RF signal is sent to the tuner unit 23.
- the tuner unit 23 selects an RF signal of a predetermined frequency according to an instruction from the main control unit 24, converts it into an IF signal, and sends it to the demodulation unit 25.
- the demodulator 25 demodulates the IF signal to generate an audio signal and sends it to the main controller 24.
- the communication unit 27 intervenes between the Internet 16 and the main control unit 24 to exchange data with the Internet 16 (FIG. 1) via the wireless antenna 28 and to the main control unit 24. Send and receive data.
- the data includes content data of IP broadcast from the broadcast station 11.
- the current position detection unit 29 measures the current position based on the GPS radio wave from the GPS satellite 17 (FIG. 1), and sends the current position information to the main control unit 24.
- the operation unit 33 is equipped with a key or the like for receiving a user operation, and sends operation information to the main control unit 24.
- the display control unit 34 is supplied with a signal related to display information from the main control unit 24 and displays the display information on the display device 35.
- the audio control unit 36 converts the audio data from the main control unit 24 into an audio signal and sends it to the speaker 37.
- the speaker 37 converts the audio signal from the audio control unit 36 into sound and outputs the sound.
- Programs and fixed data are recorded in the ROM 40, and the main control unit 24 can appropriately read the recorded data of the ROM 40.
- the RAM 41 is used by the main control unit 24 to temporarily store data during arithmetic processing.
- FIG. 3 is a flowchart of the broadcast switching method 45
- FIG. 4 is a sequence diagram of a processing portion for permitting an IP broadcast output in the broadcast switching method 45
- FIG. 5 is a sequence diagram of the processing portion for prohibiting the IP broadcast output in the broadcast switching method 45.
- the broadcast switching method 45 is applied to the broadcast receiver 21 and is started when the user turns on the power of the broadcast receiver 21 in the operation unit 33 (FIG. 2) or switches the broadcast station to be listened to. Ru. The user switches the listening station to switch the selected frequency of the broadcast wave in the broadcast receiver 21.
- a predetermined video (eg, advertisement) may be added to the audio of the radio broadcast wave.
- the broadcast receiver 21 may output an IP broadcast before the start of the broadcast switching method 45.
- the broadcast switching method 45 first, the output of the video and audio of the broadcast received before the switching is stopped (S46, S47).
- the network connection with the server of the distribution source is established, and the communication of the network is disconnected (S48).
- the selected frequency in the tuner unit 23 is switched to the frequency of the broadcast wave of the broadcast station after switching (S49).
- the reception signal of the selected frequency in the tuner unit 23 waits for stabilization (S50), and after the stabilization, the reception signal Level is obtained (S51), and it is confirmed whether the received signal level indicates a certain value or more (S52). Then, if a value greater than or equal to a certain value is indicated, the process proceeds to S53, and if a value less than the certain value, the process proceeds to S68.
- the fact that the signal level indicates a certain value or more means that the broadcast receiver 21 exists in the broadcast target area of the broadcast station 11 for the broadcast wave related to the received signal. means. Therefore, the broadcast station 11 can be permitted to output the content of the IP broadcast associated with the broadcast wave from the broadcast receiver 21.
- the broadcast receiver 21 accesses the distribution server via the Internet 16 by using the URL (Uniform) of the access destination server. It is necessary to obtain Resource Locator).
- FIG. 6 is a structural diagram of table information held by the broadcast receiver 21 in order to search for the access destination URL.
- FIG. 7 is a diagram in which specific data is entered in the correspondence field in the table information of FIG.
- the broadcast receiver 21 specifies the current position based on the GPS radio waves from the GPS satellites 17 as described above with reference to FIGS. 1 and 2 (S53). In this way, the latitude and longitude of the current position are acquired, and the prefecture is specified from this latitude and longitude.
- the prefecture can be identified from latitude and longitude by using the function. If the receiver does not have such a function, a known server having a function capable of identifying the prefecture from the latitude and longitude exists on the Internet 16, and thus the server is accessed Prefectures can be obtained by inquiring. The specific method of acquiring the URL by the inquiry will be described later with reference to FIGS. 8 to 11.
- the access destination for accessing the distribution server (corresponding to the distribution server 74 in FIG. 9 described later) in the Internet 16 is the URL
- the database (table information in FIGS. 6 and 7) in the broadcast receiver 21 is searched based on the prefectures obtained by these methods and the current selected frequency, and the broadcasting station of the transmission source of the broadcast wave of the selected frequency Is identified (S54), and the URL that is the access destination is acquired based on the identified broadcasting station. If the current position is Tokyo and the current selected frequency is 81.5 [MHz], the radio broadcast station uses CCC_FM and the URL is “http: // www. It turns out that it is ".ccc.co.jp / contents.htm”.
- the broadcast target area of each radio broadcast is managed on a prefectural basis, but it may be managed in more detail by combining a prefectural and a municipality.
- one frequency is associated with one radio broadcasting station, but since there are cases where a radio broadcasting station transmits broadcast waves from a plurality of relay stations, one radio broadcasting Multiple frequencies can be associated with a station.
- one radio broadcast station holds a plurality of URLs, but when one radio broadcast station distributes a plurality of broadcasts, the access is made to each URL. This is because switching of broadcasts and programs to be viewed is considered, and in the case of distributing only one broadcast, it is sufficient to associate only one URL with that broadcast station.
- the broadcast receiver 21 When the URL is stored in this database (in the case of "YES" in S55), the broadcast receiver 21 establishes communication with the distribution server indicated by the URL in order to access the acquired URL (S60). After communication is established (S61 "YES"), authentication is performed between distribution servers indicated by the URL (S62). This means that broadcasts distributed via the Internet will be accessed based on the URL, but if distributed via the Internet, once the URL is known, the broadcast will be performed using a personal computer from any region It becomes possible to receive. This leads to the distribution of the broadcast to any area far beyond the broadcast target area approved as a broadcaster, so a specific device using an authentication means such as user authentication or device authentication The purpose is to put restrictions so that you can only view and listen.
- the main control unit 24 switches the audio output to the broadcast wave decoding side, that is, switches to the audio signal related to the demodulated signal from the demodulation unit 25, and then cancels the audio mute in S69.
- the content of the IP broadcast can be audio-only content, audio + video content, or video-only content, regardless of the broadcast wave associated with the radio broadcast or the television broadcast.
- S68 and S69 deal with such a user, and at least the voice from the broadcast wave is output even in a situation where the Internet broadcast can not be viewed when the signal level is below a certain value. Also, depending on the user, the channel may be switched immediately because there is much noise. Also, instead of S68 and S69, processing may be performed to notify the user by voice output and / or visual display that the current location is an area where output of IP broadcast is prohibited.
- FIG. 8 is a flowchart of another broadcast switching method 71.
- the same steps as the steps of the broadcast switching method 45 of FIG. 3 are assigned the same numbers as the numbers given to the steps of the broadcast switching method 45.
- the broadcast system 10 of FIG. 1 when the frequency is changed, the reception signal level falls below a certain value, and when the reception quality can not be sufficiently secured, the broadcast distributed via the Internet 16 is not received, and the broadcast is performed. It is designed to output broadcasts delivered by waves.
- the broadcast system according to FIG. 8 broadcast switching method 71 even in the situation where the broadcast wave can not be received, if the current position of the receiver can be identified by the information acquired from the GPS radio wave from GPS satellite 17, Since it can be judged from the current position whether the broadcast of the unreceivable broadcast wave is within the broadcast target area, it is decided based on the current position whether or not the broadcast distributed via the Internet 16 can be viewed.
- the difference between the broadcast switching method 71 and the broadcast switching method 45 of FIG. 3 is that in the broadcast switching method 71, S52 of the broadcast switching method 45 is omitted.
- the table information (database) of FIG. 7 is used to specify the URLs corresponding to them from the current position and the frequency of the selected broadcast wave. Do.
- the URL specified from the current position is the URL of the IP broadcast of the broadcast station 11 whose broadcast target area is the current position.
- the broadcast switching method 71 the signal of the broadcast wave of the IP broadcast Although the level is not detected, the content output of the IP broadcast from the broadcast receiver 21 can be limited only when the broadcast receiver is present in the broadcast target area of the broadcast wave associated with the IP broadcast.
- the entire broadcast switching method 71 will be described.
- the output of the video and audio of the broadcast received before the switching is stopped (S46, S47).
- the connection with the network is established, and the network is disconnected (S48).
- the reception frequency is switched to the target frequency (S49).
- the latitude and longitude are acquired from GPS (S53), and the URL corresponding to the current position and the current frequency is acquired (S54) as described in the above embodiment (S54). If it is stored, the broadcast being distributed via the Internet 16 is viewed (S55, S60 to S67).
- the broadcast switching method 71 when it is possible to connect to the Internet 16 even in a low-viewing area, it is possible to receive a broadcast distributed via the Internet 16, so that it is possible to take measures against the low-viewing area.
- FIG. 9 is a block diagram of the broadcast system 73 when the broadcast receiver 21 acquires the URL of the distribution source server of the IP broadcast from the outside.
- elements overlapping with elements of the broadcast system 10 of FIG. 1 are assigned the same codes as those given to elements of the broadcast system 10, and the description thereof is omitted, and only the main points will be described. .
- the broadcast station 11 is equipped with a distribution server 74 and an authentication server 75
- the URL management center 76 is equipped with a URL management server 77.
- the distribution server 74, the authentication server 75, and the URL management server 77 are connected to the Internet 16.
- the broadcast receiver 21 of the broadcast system 10 has the table information of FIG. 7, but the broadcast receiver 21 of the broadcast system 73 does not have the information.
- the table information of FIG. 7 is installed in the URL management server 77 of the URL management center 76, and the broadcast receiver 21 uses the URL of the broadcast station 11 of the currently selected frequency via the Internet 16
- the management server 77 is inquired, and the URL management server 77 is notified.
- FIG. 10 is a flowchart of a broadcast switching method 80 applied to the broadcast receiver 21 in the broadcast system 73 of FIG.
- FIG. 11 is a sequence diagram of the broadcast switching method 80 of FIG.
- the same steps as the steps of the broadcast switching method 45 of FIG. 3 are given the same numbers as the numbers given to the steps of the broadcast switching method 45.
- S81 to S83 are inserted between S53 and S60 in place of S54 and S55 of the broadcast switching method 45 of FIG.
- the broadcast receiver 21 establishes a connection with the URL management server 77 via the Internet 16.
- the current position and the set frequency are transmitted to the URL management server 77.
- the URL management server 77 searches the current position and the set frequency received from the broadcast receiver 21 in the database (table information in FIG. 7) held by the own device for the URLs associated with them, and broadcasts the search results. It returns to the receiver 21. If there is a corresponding URL, the broadcast receiver 21 can know it from the received information of the search result from the URL management server 77. In S83, it is determined whether or not acquisition of the URL has succeeded, and if the determination is positive, the process proceeds to S60, and if no, the process proceeds to S68.
- FIG. 12 is a flowchart of a broadcast switching method 85 in which the authentication process is omitted in the broadcast switching method 45 of FIG.
- FIG. 13 is a sequence diagram of the broadcast switching method 85 of FIG.
- the same steps as the steps of the broadcast switching method 45 of FIG. 3 will be assigned the same numbers as the numbers given to the steps of the broadcast switching method 45, and the description thereof will be omitted.
- S62 and S63 of the broadcast switching method 45 of FIG. 3 are omitted.
- the broadcast receiver 21 When the broadcast receiver 21 holds the URL of the distribution server 74 in its own machine or acquires it from a specific server, the possibility that the URL leaks to the outside is considered to be low. Since there is no need to restrict the devices that can be received, in particular, there is no need to restrict the devices that can be received, as it can not be received by any device such as a PC (personal computer) without leaking outside, in such cases user authentication and device authentication There is no need to Also, by omitting the authentication procedure, it is possible to output the received video and audio more quickly, so that the switching time can be shortened when the frequency is switched (the broadcasting station to be received is switched), It can be provided to viewers more quickly.
- the broadcast switching method 85 of FIG. 12 contributes to the convenience improvement of the broadcast receiver 21 under the situation where there is no external leak of the URL.
- FIG. 14 is a flowchart of the reception level monitoring method 100 implemented in the broadcast receiver 21 of FIG.
- the reception level monitoring method 100 is activated at predetermined time intervals while the broadcast receiver 21 is in operation. And if the signal level of the broadcast wave of the selected station in operation of the broadcast receiver 21 is monitored, and the signal level falls from a certain value or more to less than a certain value, conversely, if it becomes a certain value or more from less than a certain value. , Switch output from IP broadcast to broadcast wave or vice versa.
- the same steps as the steps of the broadcast switching method 45 of FIG. 3 are assigned the same numbers as the numbers attached to the steps of the broadcast switching method 45, and the description is omitted. Will be explained only.
- S101 it is determined whether the user of the broadcast receiver 21 is viewing IP broadcast, that is, whether the output of the broadcast receiver 21 is IP broadcast, and if the determination is positive, the reception level If the monitoring processing method 100 is ended, the process proceeds to step S102.
- the processing contents of S101 and S102 are the same as S55 and S61 of the broadcast switching method 45 of FIG. 3, but the destination according to the determination result is S101 if the determination is positive, the process proceeds to S102.
- the reception level monitoring method 100 ends. If the determination is positive in S102, the process proceeds to S46. If the determination is negative, the reception level monitoring method 100 ends.
- the user can view the IP broadcast as soon as the broadcast receiver 21 enters the broadcast target area of the broadcast wave associated with the currently output IP broadcast.
- S111 it is determined whether the user of the broadcast receiver 21 is viewing an IP broadcast, that is, whether the output of the broadcast receiver 21 is an IP broadcast, and the determination is positive. If yes, the process proceeds to step S46. If no, the reception level monitoring method 100 ends. S115 and S116 are inserted between S47 and S68. In S115, the reproduction of the IP broadcast is stopped, and in S116, the communication with the distribution server of the IP broadcast is disconnected. After S116, S68 and S69 are performed. Thus, when the broadcast receiver 21 is out of the broadcast target area of the broadcast wave associated with the currently output IP broadcast, the content of the broadcast wave is output instead of the IP broadcast from the broadcast receiver 21. Ru.
- the broadcast receiver 21 when the broadcast receiver 21 outputs an IP broadcast, the broadcast receiver 21 is a broadcast target area under the law of broadcast wave broadcast associated with the IP broadcast.
- the case is strictly limited to the prefectural area of However, the broadcast receiver 21 may be operated with lessening such strictness.
- the broadcast wave spills over from the prefectural area as a broadcast target area under the law, reaches the adjacent prefectural area, and can be viewed there. Based on such current conditions, even when the broadcast receiver 21 is in the adjacent prefecture area, particularly when the broadcast receiver 21 is in an area close to the prefectural border within the adjacent prefecture area, the output of the IP broadcast is sent to the broadcast receiver 21. Allow it.
- the prefecture area shown in Fig. 6 is not a prefecture area as a broadcast area under the law of broadcast waves, but is a prefecture area including an adjacent prefectural area or a prefectural border that divides the broadcast area under the law of broadcast waves. To the prefecture area where you extended the predetermined distance.
- FIG. 15 is a block diagram of the broadcast receiver 160.
- the above-mentioned broadcast receiver 21 is an example of the broadcast receiver 160.
- the broadcast receiver 160 is for both broadcast wave type broadcast and IP type broadcast.
- IP-type broadcast includes "Internet broadcast”, “IP broadcast” and “IP re-transmission”.
- the broadcast receiver 160 includes a broadcast output unit 161, a signal level detection unit 162, and an output control unit 163.
- the broadcast receiver 160 can further include current position detection means 166, frequency detection means 167, server search means 168, and access means 169.
- the broadcast output means 161 outputs the content of the broadcast wave type broadcast of the selected station or the content of the IP type broadcast associated with the broadcast wave type broadcast.
- the signal level detection means 162 detects the signal level of the broadcast wave of the selected station.
- the output control means 163 permits the output of the content of the IP type broadcast of the selected station from the broadcast output means 161 when the detection signal level is equal to or higher than a predetermined value, and prohibits the output when less than the predetermined value. .
- Broadcast wave type broadcasts and IP type broadcasts are not limited to radio broadcasts. It may be a television broadcast.
- the selected station is an analog broadcast station, in particular an analog radio station (radio station of AM and FM), but the selected station may be a digital station.
- the analog broadcast wave does not include the ID of the broadcast station, and it is difficult to identify the broadcast station from the broadcast wave itself.
- the broadcast wave type broadcast of the selected station and the IP type broadcast associated with the broadcast wave type broadcast typically broadcast the same content substantially at the same time.
- the content of the broadcast wave type broadcast of the selected station and the content of the IP type broadcast associated with the broadcast wave type broadcast are not limited to the same content.
- the selected station is an analog radio station
- the content of the broadcast wave type broadcast is only audio, but the content of IP type broadcast can add the audio and the video information related to the audio.
- the selected station limits the area to which the output of the content of the IP type broadcast is permitted to the broadcast target area for the broadcast type broadcast, the content to be delivered by the IP type broadcast is completely the same as the content of the broadcast type broadcast. It may be different.
- the broadcast receiver 160 allows the output of IP type broadcast to be permitted and prohibited when the own device is present or absent in the broadcast target area, respectively, in the broadcast wave type broadcast associated with the IP type broadcast. Since the determination is made based on the signal level of the broadcast wave, each point may be controlled without holding the information as to whether it is the broadcast target area of the broadcast wave type broadcast associated with the IP type broadcast. it can. In addition, as a result, when the broadcast receiver 160 moves to an area where the information is not held, or when the broadcast target area is changed but the information has not been updated, the content output of the IP type broadcast It is possible to control permission and prohibition properly.
- the broadcast target area is not limited to the prefectures defined as broadcast target areas according to laws and regulations.
- broadcast waves are built over from the prefectures designated as legal broadcast target areas to reach the neighboring prefectures, and the viewing there, especially the prefecture border with the broadcast target area among the neighboring prefectures.
- the current position of the broadcast receiver 160 is substantially fixed, so the broadcast receiver 160 moves beyond the broadcast target area
- the effect on content output when moving to an area that does not have broadcast target area information of the broadcast station is not very effective, but there has been a change in the broadcast target area If the information has not been updated, sufficient effects can be exhibited.
- the output control means 163 causes the broadcast output means 161 to output the content of the IP type broadcast of the selected station when the detection signal level is equal to or higher than the predetermined value and the selected station implements the IP type broadcast.
- the selected station is an analog broadcast station
- the content delivered from the IP-type broadcast has higher reception quality than the content of the broadcast wave. Therefore, the output of the IP type broadcast content of the selected station causes the user to view high-quality content (it is assumed that "listening" is included in "listening" in the broadcast receiver 160). Can.
- the output control means 163 is a broadcast output means when the detection signal level is less than a predetermined value or when the selected station of the broadcast wave on which the detection signal level is based is not implementing IP type broadcasting.
- the content of the broadcast wave type broadcast of the selected station is output at 161.
- the output control means 163 can also stop the output from the broadcast output means 161 at all or output alternative content if the detection signal level is less than the predetermined value.
- the broadcast receiver 160 is not installed at a place in a house but is mounted on a car or portable, the current position of the broadcast receiver 160 is dynamic, and the broadcast receiver 160 is also a broadcast station during its operation. Entry and exit to and from each broadcast target area will occur.
- the output control unit 163 outputs the content of the IP type broadcast of the selected station when the detection signal level becomes lower than the predetermined value when the broadcast output unit 161 outputs the content of the IP type broadcast of the selected station. The output is switched to the broadcast wave type broadcast of the selected station.
- the output control means 163 outputs the output of the broadcast output means 161 at the selected station when the detection signal level becomes equal to or higher than a predetermined value when the broadcast output means 161 outputs the contents of the broadcast wave type broadcast of the selected station. Switch to IP-type broadcasting.
- a specific example of the output switching of the broadcast wave type broadcast and the IP type broadcast in the broadcast receiver 160 accompanying this in order for the broadcast receiver 160 to move during operation and move in and out of the broadcast target area of each selected station This is the reception level monitoring method 100 of FIG.
- the broadcast receiver 160 is outputting the content of IP type broadcast or broadcast wave type broadcast of the selected station, it is possible for the selected station to enter or leave the broadcast target area due to the movement of the broadcast receiver 160. Therefore, IP type broadcast output limited to the broadcast target area of the selected station can be accurately implemented.
- the current position detection means 166 detects the current position.
- the frequency detection means 167 detects the frequency of the broadcast wave of the selected station.
- the server search means 168 searches the distribution server 174 of the IP type broadcast associated with the broadcast wave type broadcast of the broadcast wave based on the detected current position and the detected frequency. If the detected signal level is equal to or higher than a predetermined value and there is a distribution server 174 to be searched, the access unit 169 accesses the distribution server 174 and supplies the broadcast output unit 161 with the distributed content of the IP type broadcast from the selected station. Do.
- the broadcast receiver 160 smoothly accesses the distribution server 174 by receiving the current position detection means 166, the frequency detection means 167, the server search means 168, and the access means 169, and receives content distribution from that. it can.
- the current position detection by the current position detection means 166 is not limited to GPS radio waves. It detects the transmission and reception frequency of the mobile phone base station at the point, detects the frequency of all broadcasts that can be received above the predetermined signal level at the point, and can receive all the detected frequencies for each area. It can be collated with the frequency information of the broadcasting station and detected based on the collated result.
- the broadcast receiver 160 uses the external URL management server 176 even if it does not have the information of the URL of the distribution server 174 of the IP type broadcast associated with the broadcast wave type broadcast of the frequency of the broadcast wave by itself. And the corresponding URL can be obtained. Also, in that case, detection of the current position can be omitted. For example, in Japan, broadcast waves of the same frequency are hardly assigned to different broadcast stations. Even if they were, their stations were far enough away. The moving distance of the user of the broadcast receiver 160 is less likely to extend across the country, and is limited to, for example, the Kanto area or the Kansai area.
- the current position of the broadcast receiver 160 can be specified from the information of only the frequency of the broadcast wave.
- the server search means 168 transmits the information of the detection frequency to the URL management server 176 via the Internet, and the URL management server 176 broadcasts the detection frequency of the detection frequency.
- Information on the URL of the distribution server 174 of the IP-type broadcast associated with the broadcast is received.
- the access means 169 accesses the distribution server 174 based on the URL and distributes the IP type broadcast content from the selected station. Are supplied to the broadcast output means 161.
- FIG. 16 is a flow chart of a broadcast receiver control method 180 applied to the broadcast receiver 160.
- the signal level of the broadcast wave of the selected station is detected.
- the output of the content of the IP type broadcast of the selected station is permitted.
- the output of the content of the IP type broadcast of the selected station is prohibited.
- the process of S181 corresponds to the function of the signal level detection means 162 of the broadcast receiver 160.
- the processes of S182 to S184 correspond to the function of the output control means 163 of the broadcast receiver 160.
- the specific aspect described above about the function of the signal level detection means 162 and the output control means 163 is applicable as a specific aspect of a process of a corresponding step.
- the broadcast receiver control method 180 can be added with processing steps associated with the functions of the current position detection means 166, the frequency detection means 167, the server search means 168, and the access means 169 of the broadcast receiver 160. Those adding steps are added after S183.
- a program to which the present invention is applied causes a computer to function as each means of the broadcast receiver 160.
- Another program to which the present invention is applied causes a computer to execute the steps of the broadcast receiver control method 180.
- the radio broadcasting station broadcasts the same program as the program by the broadcast wave in substantially real time.
- the user may move in the area while listening to a program of a radio station on either a broadcast wave or the Internet using a car-mounted radio or a portable radio for both the broadcast wave and the Internet. In this area movement, the radio broadcast station may exceed the broadcast target area defined by law.
- the broadcast receiver can accurately control the output permission / prohibition of the IP type broadcast without using the information of whether the current position is the area of the output permission / prohibition of the IP type broadcast. , Methods and programs can be provided.
- FIG. 17 shows the relationship between the presence or absence of radio broadcast and IP broadcast being broadcast by the broadcast station 11 selected by the broadcast receiver 21 and the broadcast source of video and audio outputted by the broadcast receiver 21. It shows.
- the presence or absence of the radio broadcast and the IP broadcast broadcasted by the broadcast station 11 selected by the broadcast receiver 21 (this will be referred to as a "reception pattern") is " ⁇ " and "-".
- the output patterns of the video and audio broadcast sources output by the broadcast receiver 21 are indicated by words in the rightmost column of the table of FIG. Patterns 1 to 5 in FIG. 17 are input / output patterns which are combinations of reception patterns and output patterns.
- the image means a moving image and is distinguished from a still image.
- the videos in FIGS. 3 to 8 (examples: S46 and S64) are used including moving pictures and still pictures.
- the broadcast station 11 is on the air (" ⁇ ") for analog radio broadcasting in all of the patterns 1 to 5.
- the broadcast station 11 broadcasts a combined content in which one or more are selected from video, audio and still images.
- the broadcast receiver 21 is, by default, IP broadcast priority for its output. Therefore, according to the video / audio output example of the rightmost column in the table of FIG. 17, when the IP broadcast includes audio, the audio output of the broadcast receiver 21 is IP broadcast audio rather than analog radio broadcast audio. Take precedence.
- the IP broadcast does not include audio and is broadcast of only video or a still image
- the video output of the broadcast receiver 21 is the video or still image of the IP broadcast
- the audio output of the broadcast receiver 21 is analog radio broadcast
- the voice of In the patterns 1, 3 and 4 the output from the broadcast receiver 21 is only the content of the IP broadcast, whereas in the patterns 2 and 5, the video content of the IP broadcast or the still image and the audio of the analog radio broadcast Content and content will be mixed and output.
- the priority output in the broadcast receiver 21 is IP broadcast or analog radio broadcast can be changed according to the manual setting of the user or the product specification.
- the analog radio broadcast is set to the priority output by the user or the product specification indicates that the analog radio broadcast is the priority output, the audio of the analog radio broadcast is output even if the voice of the IP broadcast can be received.
- IP broadcast can be received, and if IP broadcast includes video (video or still image may be included), output IP broadcast video. It is also good.
- the broadcast receiver 21 is equipped with a setting that allows the user to reflect his / her preference so that the broadcast receiver 21 outputs the video (screen) held in advance. You may
- FIG. 18 is a flowchart of the reception failure countermeasure method 80.
- the reception failure countermeasure method 80 is executed during a period in which the broadcast receiver 21 is outputting any of the video, the still image and the moving image of the IP broadcast by the broadcast switching method 45 or 71 (FIG. 3 or 8).
- S81 it is determined whether the IP broadcast has started, and as soon as the determination is positive, the process proceeds to S82.
- the IP broadcast is received and output from the broadcast receiver 21.
- the input and output patterns showing the relationship between reception and output include patterns 1 to 5 in FIG. 17. In patterns 2 and 5, the output of IP broadcast is only video or still image, and the sound is not IP broadcast, It becomes the sound of analog radio broadcast.
- S83 it is determined whether the reception of the IP broadcast is to be ended. If the determination is positive, the reception failure countermeasure method 80 is ended, and if it is not, the process proceeds to S84.
- S84 it is determined whether the data reception of the IP broadcast via the Internet 16 has timed out, and if the determination is positive, the process proceeds to S88, and if no, the process proceeds to S85.
- the broadcast receiver 21 prepares several data buffers for data reception of IP broadcasts via the Internet 16. The data is received in the data buffer in a fine size (for example, in packets), and when the data becomes a meaningful size (for example, in frames), the data is stored or decoded depending on the situation, and the reproduction is performed. It will be.
- the determination in S84 is positive as a timeout.
- the pulling of the data transfer rate below the predetermined value includes the down of the IP broadcast server 20, the down of the access point to the Internet 16, the traffic congestion, and the like.
- S85 is executed when the reception of the IP broadcast is normal.
- the retry counter is cleared, and the process proceeds to S82.
- the retry counter counts the number of consecutive times (the number of times of execution of S95) determined to be timed out in S84.
- S89 it is determined whether to switch the output of the broadcast receiver 21 from IP broadcast to analog broadcast. If the determination is positive, the process proceeds to S90, and if no, the process proceeds to S95. Specifically, the determination as to whether or not to switch to analog broadcasting is executed after the connection is disconnected in (a) S88, so the determination of switching is abolished and almost forcibly (conditionally ) It may be switched to analog broadcasting.
- B When the broadcast receiver 21 is a portable type or an on-vehicle type, the broadcast receiver 21 may temporarily enter a tunnel and be disconnected from the Internet 16. In that case, Use GPS, etc. to determine whether the current position is within the tunnel, and detect the tunnel length and transit time based on navigation map data etc. Within the transit time, withhold the judgment of S89, and that time After the passage of time, it is checked whether the transfer rate is still less than the predetermined value. If the transfer rate is less than the predetermined value, the determination of S89 may be made positive.
- the reception of the broadcast receiver 21 is switched from IP broadcast to analog broadcast, and the content of analog broadcast is output from the broadcast receiver 21. If the output pattern from the broadcast receiver 21 before execution of S90 is the pattern 2 or 5 in FIG. 17, only the video output from the broadcast receiver 21 is discontinued, and the audio output from the broadcast receiver 21 is performed. Will keep the sound of analog broadcasting as it is.
- the retry counter is incremented by one.
- S97 data reception of the IP broadcast is retried, and then the process returns to S84. In the data reception timeout in S84, the transfer rate after the start of the data retry is remeasured.
- S101 it is determined whether to switch the output of the broadcast receiver 21 from IP broadcast to analog broadcast. If the determination is positive, the process proceeds to S102, and if no, the process proceeds to S97.
- the specific determination method of S101 is the same as that of S89 mentioned above.
- S102 executes the same process as S90 described above.
- FIG. 19 is a block diagram of the broadcast receiver 120. As shown in FIG. A specific example of the broadcast receiver 120 is the broadcast receiver 21 (FIG. 2).
- the broadcast receiver 120 may be stationary, portable or on-vehicle.
- the broadcast receiver 120 includes a content output unit 121, a fault monitoring unit 122, and an output control unit 123.
- the content output unit 121 outputs the content of the broadcast wave type broadcast or the IP type broadcast received from the broadcast station whose current position is within the broadcast target area of the broadcast wave.
- the failure monitoring unit 122 monitors the reception failure of the IP broadcast while the content output unit 121 is outputting the IP broadcast.
- the output control means 123 outputs the content output from the content output unit 121, and the content of the broadcast wave broadcast of the broadcast station broadcasting the IP broadcast from the IP broadcast when the reception failure of the IP broadcast occurs. Switch to
- a specific example of the content output unit 121 is the display device 35 and the speaker 37 (FIG. 2).
- the reception failure of the IP type broadcast includes, for example, the case where the IP broadcast server 20 is down, the access point to the Internet 16 is down, traffic congestion, and underground.
- the broadcast receiver 120 receives IP broadcasts via an IP network.
- IP type broadcasting is not limited to simultaneous broadcasting of broadcast wave type broadcasting. It is assumed that the content of IP type broadcast may be irrelevant to the content of broadcast type broadcast.
- the presence or absence of an IP type broadcast reception failure is determined based on whether the data transfer rate of the IP type broadcast is less than a predetermined value.
- the fault monitoring means 122 further determines whether the current position is a position where broadcast waves can be received, specifically, whether the current position is underground or in a tunnel, and based on navigation map data etc. The length or transit time of the underground or tunnel is detected, and the monitoring of the reception status is suspended within the transit time, and after the transit time passes, the IP is based on whether the transfer rate is still less than a predetermined value. Determine whether there is a failure in the reception status of the broadcast. Whether or not the current position is underground or in a tunnel can be determined, for example, by collating the current position with map data of navigation.
- the length of the tunnel can also be detected from navigation map data. For example, in a tunnel, GPS radio waves can not be received, so the current position is detected based on acceleration and vehicle speed detected by, for example, a gyro sensor and a vehicle speed sensor, and the broadcast receiver 120 is mounted based on comparison of the current position and map data of navigation. It can be determined whether the car of the vehicle has entered or left the tunnel. Then, the failure monitoring means 122 stops the monitoring of the reception state in the tunnel, and resumes the monitoring of the reception state as soon as it is taken out of the tunnel.
- GPS radio waves can not be received, so the current position is detected based on acceleration and vehicle speed detected by, for example, a gyro sensor and a vehicle speed sensor, and the broadcast receiver 120 is mounted based on comparison of the current position and map data of navigation. It can be determined whether the car of the vehicle has entered or left the tunnel. Then, the failure monitoring means 122 stops the monitoring of the reception state in the tunnel, and resumes the monitoring of the reception state as
- the content output unit 121 outputs the content of the IP type broadcast rather than the content of the broadcast wave type broadcast of the broadcast station. Give priority to output. Further, when the content of the IP type broadcast of the broadcast station does not contain audio and is only video or a still image, the output control means 123 outputs the content in a period in which the content of IP type broadcast of the broadcast station can be normally output. If the sound of broadcast wave type broadcast and the video or still image of IP type broadcast are output to section 121, and if reception failure of IP type broadcast occurs, the content output section 121 outputs the sound of broadcast wave type broadcast. Output of IP type broadcast video or still images can be stopped while maintaining the output of
- FIG. 20 is a flow chart of the broadcast receiver control method 130.
- the broadcast receiver control method 130 is applied to the broadcast receiver 120.
- S131 it is determined whether the content output unit 121 is outputting an IP-type broadcast. If the determination is positive, the process proceeds to S132, and if it is not, the broadcast receiver control method 130 is ended.
- S132 the reception failure of the IP type broadcast is monitored.
- S133 it is determined whether or not reception failure of the IP type broadcast has occurred, and if the determination is positive, the process proceeds to S134, and if no, the process returns to S132 and the monitoring is continued.
- S134 the output content from the content output unit 121 is switched from the IP type broadcast to the content of the broadcast wave type broadcast of the broadcast station broadcasting the IP type broadcast.
- the processes of S131 to S133 correspond to the function of the failure monitoring means 122 of the broadcast receiver 120 (FIG. 19).
- the process of S134 corresponds to the function of the output control means 123 of the broadcast receiver 120.
- the specific aspect described above for each means of the broadcast receiver 120 is also applicable as a specific aspect of the corresponding steps in the broadcast receiver control method 130.
- a program to which the present invention is applied causes a computer to function as each means of the broadcast receiver 120.
- Another program to which the present invention is applied causes a computer to execute the steps of the broadcast receiver control method 130.
- the present specification discloses various scopes and levels of inventions.
- the invention exerts functions and effects independent of each device and each method within the scope of expansion or generalization as well as each device and each method of various technical scope and specific level described in the present specification. What extracted one or more elements, what changed one or more elements in the range of expansion or generalization, and further, a combination of one or more elements between each device and each method Including those replaced.
- 160 broadcast receiver
- 161 broadcast output means
- 162 signal level detection means
- 163 output control means
- 166 current position detection means
- 167 frequency detection means
- 168 server search means
- 169 access means
- 174 Distribution server
- 176 URL management server
- 180 Broadcast receiver control method
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- Computer Networks & Wireless Communication (AREA)
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- Circuits Of Receivers In General (AREA)
Abstract
Description
さらに、本発明の第3の観点による放送受信機は、基本的に、現在位置を検出する現在位置検出部、前記選択局の放送波についてその周波数を検出する周波数検出部、前記放送波の放送波型放送に対応付けられているIP型放送の配信サーバを、検出された現在位置及び周波数に基づき検索するサーバ検索部、及び検索対象の配信サーバが見つかれば、見つかった配信サーバへアクセスして前記選択局からのIP型放送の配信コンテンツを前記放送出力部へ供給するアクセス部から構成される。
また、本発明の第2の観点による放送受信機制御方法は、放送波型放送及びIP型放送両用の放送受信機の制御方法であって、基本的に、前記選択局のIP型放送を出力可能か判断するステップ、前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみであるか判断するステップ、及び前記選択局のIP型放送を出力可能な場合で、かつ、前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみである場合には、前記コンテンツ出力部に、放送波型放送の音声とIP型放送の動画又は静止画とを出力させるステップ、を有する。
さらに、本発明の第3の観点による放送局特定方法は、現在位置を検出する現在位置検出ステップ、選択局の放送波についてその周波数を検出する周波数検出ステップ、及び 検出された現在位置及び周波数に基づき放送局を特定する放送局特定ステップ、を有する。
また、本発明の第2の観点によるプログラムは、放送局特定プログラムであって、上記放送局特定方法をコンピュータに実行させるものである。
また、本実施例では、例えば、ラジオ放送局が、放送波による番組と同一番組をほぼリアルタイムでインターネット放送することを想定している。これに対し、ユーザは、放送波及びインターネット両用の車載ラジオや携帯ラジオでラジオ放送局の番組を放送波及びインターネットのどちらかで聴取しつつ、地域を移動することがある。この地域移動では、該ラジオ放送局に対して法令上、定められている放送対象地域を越えることがある。両用ラジオの現在位置に応じて、インターネット放送の出力を的確に許容及び禁止する必要がある。
上記実施例では現在位置がIP型放送の出力許可・禁止の地域であるか否かの情報を使用しなくても、IP型放送の出力許可・禁止を的確に制御することができる放送受信機、方法及びプログラムを提供することができる。
上記実施例によればIP型放送に受信障害が生じた時に有効に対処することができる放送受信機、制御方法及びプログラムを提供することが可能となる。
Claims (26)
- 放送波型放送及びIP型放送両用の放送受信機であって、
選択局の放送波型放送のコンテンツ又は前記放送波型放送に対応付けられているIP型放送のコンテンツを出力する放送出力部、及び
前記選択局のIP型放送のコンテンツを出力可能な場合には、前記放送出力部に前記選択局のIP型放送のコンテンツを出力させ、前記選択局のIP型放送のコンテンツを出力不可能な場合には、前記放送出力部に前記選択局の放送波型放送のコンテンツを出力させる出力制御部、
を備えることを特徴とする放送受信機。 - 前記出力制御部は前記選択局がIP型放送を実施していない場合を前記選択局のIP型放送のコンテンツを出力不可能な場合として判断することを特徴とする請求項1記載の放送受信機。
- 前記出力制御部は前記選択局がIP型放送を実施している場合で、かつ、前記IP型放送を受信可能な場合を前記選択局のIP型放送のコンテンツを出力可能な場合として判断することを特徴とする請求項1又は2記載の放送受信機。
- 前記選択局の放送波についてその信号レベルを検出する信号レベル検出部を備え、
前記出力制御部は、前記選択局がIP型放送を実施している場合で、かつ、前記信号レベル検出部で判断した検出信号レベルが所定値以上である場合を前記選択局のIP型放送のコンテンツを出力可能な場合として判断することを特徴とする請求項1から3のいずれか1項に記載の放送受信機。 - 前記選択局の放送波についてその信号レベルを検出する信号レベル検出部を備え、
前記出力制御部は、前記信号レベル検出部で判断した検出信号レベルが所定値未満である場合を前記選択局のIP型放送のコンテンツを出力不可能な場合として判断することを特徴とする請求項1から4のいずれか1項に記載の放送受信機。 - 前記出力制御部は、
前記選択局のIP型放送のコンテンツを出力可能な場合で、かつ、前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみである場合には、前記コンテンツ出力部に、放送波型放送の音声とIP型放送の動画又は静止画とを出力させる
ことを特徴とする請求項1から5のいずれか1項に記載の放送受信機。 - 放送波型放送及びIP型放送両用の放送受信機であって、
選択局の放送波型放送のコンテンツ又は前記放送波型放送に対応付けられているIP型放送のコンテンツを出力する放送出力部、及び
前記選択局のIP型放送を出力可能な場合で、かつ、前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみである場合には、前記コンテンツ出力部に、放送波型放送の音声とIP型放送の動画又は静止画とを出力させる出力制御部、
を備えることを特徴とする放送受信機。 - 前記選択局のIP放送の実施有無を管理サーバに問い合わせる通信部を有し、
前記出力制御部は前記管理サーバからの返答により、前記選択局のIP放送の実施有無を判断する請求項2から7のいずれか1項に記載の放送受信機。 - 放送局とIP型放送の配信サーバを特定する情報とを対応付けて記憶した管理サーバに対して前記選択局の配信サーバを特定する情報を問い合わせるサーバ検索部、及び
前記管理サーバから前記選択局の配信サーバを特定する情報が返答された場合は、前記返答された選択局の配信サーバを特定する情報に基づいて前記選択局の配信サーバにアクセスするアクセス部を備え、
前記出力制御部はIP型放送のコンテンツを取得した場合、前記放送出力部に前記配信コンテンツを出力させることを特徴とする請求項1から7のいずれか1項に記載の放送受信機。 - 前記選択局の放送波についてその周波数を検出する周波数検出部、
管理サーバへ検出周波数の情報を送信するとともに前記管理サーバから前記検出周波数の放送波型放送に対応付けられているIP型放送の配信サーバを特定する情報を受信するサーバ検索部、及び
前記配信サーバを特定する情報が判明した場合には前記配信サーバを特定する情報に基づき前記配信サーバヘアクセスして前記選択局のIP型放送の配信コンテンツを取得するアクセス部、を備え、
前記出力制御部は前記IP型放送の配信コンテンツを取得した場合、前記放送出力部に前記配信コンテンツを出力させることを特徴とする請求項1から7のいずれか1項に記載の放送受信機。 - 現在位置を検出する現在位置検出部、
前記サーバ検索部は検出された現在位置及び検出された周波数を前記管理サーバに送信するとともに前記管理サーバから前記検出された現在位置及び検出された周波数の放送波型放送に対応付けられているIP型放送の配信サーバを特定する情報を受信することを特徴とする請求項10記載の放送受信機。 - 現在位置を検出する現在位置検出部、
前記選択局の放送波についてその周波数を検出する周波数検出部、及び
前記放送波の放送波型放送に対応付けられているIP型放送の配信サーバを特定する情報を、前記検出された現在位置及び周波数に基づき検索するサーバ検索部、を備え、
前記出力制御部は、前記検出された現在位置及び周波数に該当する配信サーバを特定する情報が見つかった場合、前記配信サーバを特定する情報に基づき前記配信サーバへアクセスして前記選択局からのIP型放送の配信コンテンツを前記放送出力部へ出力させることを特徴とする請求項1から7のいずれか1項に記載の放送受信機。 - 前記選択局と前記選択局のIP型放送の配信コンテンツを配信する配信サーバを特定する情報とを対応付けて記憶する記憶部を備え、
前記出力制御部は、前記記憶部に前記選択局の配信サーバを特定する情報が格納されているか否かを判別して前記選択局のIP放送の実施有無を判断する請求項2から7のいずれか1項に記載の放送受信機。 - 前記出力制御部は、前記放送出力部が前記選択局のIP型放送のコンテンツを出力している場合に、前記検出信号レベルが前記所定値未満になると、前記放送出力部の出力を前記選択局の放送波型放送へ切替えることを特徴とする請求項4から13のいずれか1項に記載の放送受信機。
- 前記出力制御部は、前記放送出力部が前記選択局の放送波型放送のコンテンツを出力している場合に、前記検出信号レベルが前記所定値以上になると、前記放送出力部の出力を前記選択局のIP型放送へ切替えることを特徴とする請求項5から14のいずれか1項に記載の放送受信機。
- 前記コンテンツ出力部からIP型放送の出力中、前記IP型放送の受信状態を監視する障害監視部、を備え、
前記出力制御部は、前記IP型放送の受信状態に障害が発生したならば前記コンテンツ出力部からの出力コンテンツを、IP型放送から前記IP型放送を放送している放送局の放送波型放送のコンテンツに切替えることを特徴とする請求項1から15のいずれか1項に記載の放送受信機。 - 前記IP型放送の受信状態の障害の有無は、前記IP型放送のデータ転送レートが所定値未満であるか否かにより判断することを特徴とする請求項16記載の放送受信機。
- 地図データを記憶する記憶部を有し、
前記障害監視部は、現在位置が放送波を受信できる位置か否かを前記地図データに基づき判別するとともに、受信できない位置の場合は、受信状態の監視を保留し、受信できる位置になってから、転送レートがなお所定値未満であるか否かに基づき前記IP型放送の受信状態の障害の有無を判断することを特徴とする請求項16又は17に記載の放送受信機。 - 前記コンテンツ出力部からIP型放送の出力中、前記IP型放送の受信状態を監視する障害監視部、を有し、
前記IP型放送の受信状態に障害が発生したならば、前記コンテンツ出力部に、放送波型放送の音声の出力を維持しつつ、IP型放送の動画又は静止画の出力を停止させる前記出力制御部、
を備えることを特徴とする請求項6記載の放送受信機。 - 前記選択局はアナログラジオ放送の放送局であることを特徴とする請求項1から19のいずれか1項に記載の放送受信機。
- 現在位置を検出する現在位置検出部、
前記選択局の放送波についてその周波数を検出する周波数検出部、
前記放送波の放送波型放送に対応付けられているIP型放送の配信サーバを、検出された現在位置及び周波数に基づき検索するサーバ検索部、及び
検索対象の配信サーバが見つかれば、見つかった配信サーバへアクセスして前記選択局からのIP型放送の配信コンテンツを前記放送出力部へ供給するアクセス部、
を備えることを特徴とする放送受信機。 - 放送波型放送及びIP型放送両用の放送受信機制御方法であって
選択局がIP型放送を出力可能か否か判断するステップ、及び
選択局がIP型放送を出力可能な場合は前記選択局のIP型放送のコンテンツを出力させ、前記選択局がIP型放送を出力不可能な場合は前記選択局の放送波型放送のコンテンツを出力させるステップ、
を有する放送受信機制御方法。 - 放送波型放送及びIP型放送両用の放送受信機の制御方法であって、
前記選択局のIP型放送を出力可能か判断するステップ、
前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみであるか判断するステップ、及び
前記選択局のIP型放送を出力可能な場合で、かつ、前記選択局のIP型放送のコンテンツが音声を含まず動画又は静止画のみである場合には、前記コンテンツ出力部に、放送波型放送の音声とIP型放送の動画又は静止画とを出力させるステップ、
を有することを特徴とする放送受信機制御方法。 - 現在位置を検出する現在位置検出ステップ、
選択局の放送波についてその周波数を検出する周波数検出ステップ、及び
検出された現在位置及び周波数に基づき放送局を特定する放送局特定ステップ、を有する放送局特定方法。 - 請求項22又は23に記載の放送受信機制御方法をコンピュータに実行させる放送受信機制御プログラム。
- 請求項24に記載の放送局特定方法をコンピュータに実行させる放送局特定プログラム。
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CN2010800224271A CN102439882A (zh) | 2009-03-27 | 2010-03-25 | 广播接收机、广播接收机控制方法、广播电台确定方法、广播接收机控制程序、广播电台确定程序 |
US13/259,625 US20120023538A1 (en) | 2009-03-27 | 2010-03-25 | Broadcasting receiver, broadcasting receiver control method, broadcast station identifying method, broadcasting receiver control program, and broadcast station identifying program |
EP10756153A EP2413508A4 (en) | 2009-03-27 | 2010-03-25 | BROADCAST RECEIVER, METHOD FOR CONTROLLING THE BROADCAST RECEIVER, METHOD FOR IDENTIFYING BROADCASTING STATIONS, PROGRAM FOR CONTROLLING THE BROADCAST RECEIVER AND PROGRAM FOR IDENTIFICATION OF BROADCASTING STATIONS |
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US9680583B2 (en) * | 2015-03-30 | 2017-06-13 | The Nielsen Company (Us), Llc | Methods and apparatus to report reference media data to multiple data collection facilities |
US10536232B2 (en) * | 2015-06-29 | 2020-01-14 | Visteon Global Technologies, Inc. | Integrating audio content with additional digital content |
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DE102016012172A1 (de) * | 2016-10-12 | 2018-04-12 | Frank Baumann | WIFI, WLAN, DAB, DAB+, UKW Kopfhörer |
US11743806B2 (en) * | 2017-12-05 | 2023-08-29 | Ford Global Technologies, Llc | Method and apparatus for wireless communication suppression |
CN108989835B (zh) * | 2018-08-02 | 2021-03-16 | 北京数码视讯科技股份有限公司 | 节目信号控制方法、装置及*** |
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RU2011143331A (ru) | 2013-05-10 |
EP2413508A1 (en) | 2012-02-01 |
EP2413508A4 (en) | 2013-02-27 |
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