WO2013084263A1 - Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi - Google Patents

Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi Download PDF

Info

Publication number
WO2013084263A1
WO2013084263A1 PCT/JP2011/006843 JP2011006843W WO2013084263A1 WO 2013084263 A1 WO2013084263 A1 WO 2013084263A1 JP 2011006843 W JP2011006843 W JP 2011006843W WO 2013084263 A1 WO2013084263 A1 WO 2013084263A1
Authority
WO
WIPO (PCT)
Prior art keywords
segment
information
unit
broadcast
pilot
Prior art date
Application number
PCT/JP2011/006843
Other languages
English (en)
Japanese (ja)
Inventor
翼 鈴木
崇 豊村
小畑　信一
城杉　孝敏
村上　真一
若林　昇
Original Assignee
日立コンシューマエレクトロニクス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立コンシューマエレクトロニクス株式会社 filed Critical 日立コンシューマエレクトロニクス株式会社
Priority to PCT/JP2011/006843 priority Critical patent/WO2013084263A1/fr
Publication of WO2013084263A1 publication Critical patent/WO2013084263A1/fr

Links

Images

Classifications

    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]

Definitions

  • the present invention relates to digital broadcasting transmission technology and reception technology for transmitting digital information such as video, audio and data.
  • Patent Document 1 when transmitting various pieces of information in segment units, a plurality of segments are processed and transmitted at the same time, and the receiver side selects an arbitrary segment from the received signal. It was possible to select and demodulate.
  • Patent Document 1 discloses that the transmitting side transmits various pieces of information on a segment basis, and the receiving side selects and demodulates an arbitrary segment.
  • the present invention has been made in view of such a situation, and an object thereof is to provide a transmission device or a reception device that associates information between segments and can select and demodulate segments according to the association. There is to do.
  • information between segments can be associated on the transmission side, and a segment can be selected and demodulated on the reception side according to the association, so that the amount of information that can be transmitted in one segment
  • the above information can be processed, and information on segments other than the selected and demodulated segments can be obtained.
  • FIG. 1 is a block diagram showing a system configuration of digital broadcast distribution in Embodiment 1 according to the present invention.
  • 101 is a content transmission device
  • 102 is a data transmission device for loss compensation
  • 103 is a license management device
  • 104 is a payment system / customer management system
  • 105 is a removable medium
  • 106 is a reception device
  • 107 is a storage device
  • 108 is metadata transmission Device.
  • Content to be distributed and metadata storing information related to the content are stored in the storage device 107 and registered in the content transmission device 101 for distribution.
  • the registered content and metadata are transmitted from the content transmitting apparatus 101 via broadcast waves together with access control common information and access control individual information.
  • the metadata may be transmitted from the metadata transmission apparatus 108 via communication as well as via broadcast waves.
  • Information relating to whether or not viewing is possible is managed by the license management apparatus 103 and the settlement system / customer management system 104, and access control common information and access control individual information are supplied to the content transmission apparatus 101.
  • the access control common information and the access control individual information may be distributed not only from the content transmission apparatus 101 via broadcast waves but also from the license management apparatus 103 via communication.
  • the access control common information and the access control individual information may be stored in the removable medium 105 and delivered directly to the user or sold through a store.
  • the deficiency complementing data sending device 102 has a function of sending data for repairing a deficiency when there is a deficiency in the content distributed by the broadcast wave when the receiving device 106 receives the content.
  • the missing complement data sending device 102 sends the missing complement data via communication in accordance with the missing complement data request from the receiving device 106. After the reception of the missing complement data is completed, the receiving device 106 transmits a reception report to the missing complement data sending device.
  • the content transmission device 101, the defect complement data transmission device 102, the license management device 103, the payment system / customer management system 104, the storage device 107, and the metadata transmission device 108 are all described as separate devices. There may be a device having a plurality of functions, and the present invention is not limited to the configuration of FIG.
  • Real-time broadcasting is a streaming-type distribution, and is a service for reproducing the content at the same time as receiving a broadcast wave.
  • pushcast broadcasting is download-type distribution and is a service that is played back at an arbitrary timing after receiving a broadcast wave.
  • the content transmission apparatus 101 transmits all content, metadata, access control common information, and access control individual information via broadcast waves.
  • the content transmission apparatus 101 acquires the access control common information and the access control individual information from the license management apparatus 103 in advance in order to transmit the access control common information and the access control individual information.
  • the receiving apparatus 106 separates / extracts content, metadata, access control common information, and access control individual information from the broadcast wave, and decodes the content using the acquired access control common information and access control individual information.
  • the access control individual information may be distributed from the license management apparatus 103 via the network or the removable media 105 from the viewpoint of effective use of the broadcast band.
  • the receiving apparatus 106 needs to obtain the access control individual information in advance before receiving the content.
  • the content sending apparatus 101 sends all content, metadata, access control common information, and access control individual information via broadcast waves.
  • the content transmission apparatus 101 acquires the access control common information and the access control individual information from the license management apparatus 103 in advance in order to transmit the access control common information and the access control individual information.
  • the receiving apparatus 106 separates / extracts content, metadata, access control common information, and access control individual information from the broadcast wave, and decodes the content using the acquired access control common information and access control individual information.
  • the metadata may be distributed from the metadata transmission device 108 via a network.
  • the access control common information and the access control individual information may be distributed from the license management apparatus 103 via a network or via the removable medium 105.
  • the receiving device 106 needs to obtain the access control individual information via the network or the removable medium 105 by the time of content reproduction.
  • the content transmission apparatus 101 may repeatedly transmit specific content multiple times in a certain time zone.
  • the content stored in the receiving device 106 may be repaired by sending data for defect complementation. If the receiving device 106 determines that the accumulated content is missing, the receiving device 106 transmits a missing complement data request to the missing complement data sending device 102 via the network. In response to the missing complement data request, the missing complement data sending device 102 sends the missing complement data to the receiving device 106 via the network. The receiving device 106 receives the missing complement data and attempts to repair the accumulated content, and transmits a reception report to the missing complement data sending device 102 via the network.
  • FIG. 2 is a block diagram showing a detailed configuration inside the content transmission apparatus 101.
  • a plurality of MPEG-2 transport streams (hereinafter referred to as TS) are each subjected to transmission path coding processing, and then subjected to a plurality of IFFTs (Inverse / Fast / Fourier / Transform). It is converted into an OFDM (Orthogonal Frequency Division Multiplexing) transmission signal consisting of subcarriers in a batch and transmitted as a broadcast wave.
  • TS MPEG-2 transport streams
  • IFFTs Inverse / Fast / Fourier / Transform
  • FIG. 3 is a block diagram showing a detailed configuration inside the multimedia signal generation 201.
  • 301 is a content / metadata registration function
  • 302 is a metadata generation function
  • 303 is a metadata storage function
  • 304 is a content storage / playback function
  • 305 is a content encryption function
  • 306 is a recording medium.
  • the content and metadata supplied from the outside of the content transmission apparatus 101 are registered by the content / metadata registration function 301.
  • the registered content and metadata are stored in the recording medium 306 by the content storage / playback function 304 and the metadata storage function 303, respectively.
  • Metadata relating to content transmission and license is generated by the metadata generation function 302 and stored in the recording medium 306 by the metadata storage function 303.
  • the stored content and metadata are encrypted by the content encryption function 305 and output as a stream.
  • FIG. 4 shows an example of the segment structure of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus of the present invention. First, FIG. 4 will be described.
  • This digital broadcast transmission signal is based on the segment-coupled transmission method among terrestrial multimedia broadcasts performed by broadcast stations using radio waves (VHF-High band) with a frequency of 207.5 MHz to 222 MHz. This is based on the transmission system of terrestrial digital television broadcasting and the transmission system of terrestrial digital audio broadcasting.
  • VHF-High band radio waves
  • the OFDM segment of the digital broadcast transmission signal is (1) OFDM segment in 13 segment format (type A super segment) compliant with digital terrestrial television broadcasting transmission system (2) 14 segment or less connected one-segment OFDM segments conforming to the transmission system of digital terrestrial audio broadcasting (Type B super segment) Are connected (hereinafter referred to as a connected OFDM segment).
  • one segment has a bandwidth obtained by dividing the channel bandwidth 6 MHz of terrestrial television broadcasting into 14 equal parts.
  • a concatenated OFDM segment always includes one or more type A super segments.
  • the transmission spectrum of each super segment is arranged in any one physical channel.
  • the frequency position of the physical channel may be defined by overlapping some bands. In this case, the frequency bandwidth of the overlapping portion is an integral multiple of 6/14 MHz.
  • sub-channels are defined as shown in FIG. 5 for the frequencies in the physical channel.
  • the sub-channel is a virtual channel with a bandwidth of 1/7 MHz, and the physical channel bandwidth of 6 MHz is numbered from 0 to 41 for each tuning step 1/7 MHz.
  • FIG. 5 shows an example of the relationship between subchannel numbers and segments.
  • FIG. 5 shows an example of one segment of the center subchannel number 22.
  • the subchannels 21, 22, and 23 constitute one segment.
  • subchannel numbers 0, 1, and 41 are arranged across physical channels.
  • the maximum number of connected OFDM segments is 33.
  • the physical channel shown in FIG. 4 and super segment arrangement are conceivable.
  • the center frequency that is the channel selection frequency for Super Segment 1 and center subchannel number 28 is 208 MHz.
  • the center frequency that is the channel selection frequency of super segment 1 and center subchannel number 31 is (208 + 3/7) MHz.
  • the center frequency that is the tuning frequency of super segment 1 and center subchannel number 34 is (208 + 6/7) MHz.
  • the center frequency, which is the channel selection frequency for super segment 1 and center subchannel number 37, is (209 + 2/7) MHz.
  • the center frequency that is the channel selection frequency of Super Segment 1 and center subchannel number 40 is (209 + 5/7) MHz.
  • the center frequency, which is the channel selection frequency of super segment 2 and center subchannel number 1, is (210 + 1/7) MHz
  • the center frequency that is the channel selection frequency of super segment 3 and center subchannel number 22 is (213 + 1/7) MHz
  • the center frequency, which is the channel selection frequency of super segment 4 and center subchannel number 1, is (216 + 1/7) MHz
  • the center frequency, which is the channel selection frequency for super segment 1 and center subchannel number 22, is (210 + 4/7) MHz.
  • the center frequency, which is the channel selection frequency of super segment 2 and center subchannel number 1, is (213 + 4/7) MHz.
  • the center frequency, which is the tuning frequency of super segment 2 and center subchannel number 4 is 214 MHz.
  • the center frequency, which is the channel selection frequency for super segment 2 and center subchannel number 7, is (214 + 3/7) MHz.
  • the center frequency that is the channel selection frequency for super segment 2 and center subchannel number 10 is (214 + 6/7) MHz.
  • the center frequency, which is the channel selection frequency of super segment 2 and center subchannel number 13, is (215 + 2/7) MHz.
  • the center frequency which is the channel selection frequency of super segment 2 and center subchannel number 16, is (215 + 5/7) MHz.
  • the center frequency that is the channel selection frequency of super segment 2 and center subchannel number 19 is (216 + 1/7) MHz,
  • the center frequency that is the channel selection frequency of super segment 3 and center subchannel number 22 is (219 + 1/7) MHz, It becomes.
  • the current VHF physical channels 10, 11, and 12 are used, so there is an effect that the channel selection section of the current television receiver is well matched.
  • the 13-segment format is arranged at both ends of the allocated band, even if interference from outside the allocated band is received, the effect of frequency interleaving is exerted, so that it is difficult to receive interference.
  • 201 is a multimedia signal generation unit
  • 202 is a 13 segment format encoding unit
  • 203 is a 3 segment format encoding unit
  • 204 is a concatenated frame configuration unit
  • 205 is a reconnection frame configuration unit
  • 206 is an inverse fast Fourier transform (hereinafter, IFFT) / guard interval adding unit
  • 207 is an up-converter unit
  • 208 is a transmission amplifier unit
  • 209 is an antenna.
  • 211 is an RS (Reed Solomon) encoding unit
  • 215 is a layer division unit
  • 212 is a modulation / coding unit
  • 216 is a layer synthesis unit
  • 213 is an interleaving unit
  • 214 is a frame configuration unit.
  • a segment format encoding unit 202 is configured.
  • the modulation / coding unit 212 includes three systems, a, b, and c.
  • 221 is an RS (Reed-Solomon) encoding unit
  • 222 is a modulation / coding unit
  • 223 is an interleaving unit
  • 224 is a frame configuration unit, which constitute a one-segment format encoding unit 203.
  • the 13-segment format encoding unit 202 includes two systems a and b
  • the 1-segment format encoding unit 203 includes seven systems a, b, c, d, e, f, and g. 33 segments (13 ⁇ 2 + 7) are connected OFDM segments.
  • FIG. 6 shows a detailed configuration of the modulation / coding units 212 and 222.
  • 601 is an input from the previous stage
  • 602 is an energy spreading unit
  • 603 is a delay correction unit
  • 604 is a byte interleaving unit
  • 605 is a convolutional coding unit
  • 606 is a carrier modulation unit
  • 607 is a bit interleaving unit
  • 608 is a mapping unit
  • 609 Is an output
  • the carrier modulation unit 606 is composed of a bit interleaving unit 607 and a mapping unit 608.
  • FIG. 7 shows a detailed configuration of the frame configuration units 214 and 224.
  • 701 is an input from the previous stage
  • 702 is a pilot signal configuration unit
  • 703 is a TMCC (Transmission and Multiplexing Configuration and Control) signal configuration unit
  • 704 is an AC (Auxiliary Channel) signal configuration unit
  • 705 is an OFDM frame configuration unit
  • 706 is an output is there.
  • the video signal, the audio signal, and the data are each encoded, and TS to be output to the 13 segment format encoding unit 202 and the 1 segment format encoding unit 203 is generated.
  • Each TS is converted into a burst signal format of 188 bytes by a clock four times the IFFT sample clock, and a Reed-Solomon outer code is added by the RS encoder 211.
  • the hierarchical division unit 215 performs hierarchical division in accordance with the designation of the hierarchical information, and inputs the signals to a maximum of three systems of modulation / coding units 212a, b, and c (input 601 in FIG. 6). ).
  • the modulation / coding units 212a, 212b, and 212c will be described with reference to FIG. 6.
  • Signals input from the input 601 are respectively energy spread by the energy spread unit 602, byte interleave by the byte interleave unit 604, and convolutional code. Then, convolutional coding by the conversion unit 605, bit interleaving by the bit interleaving unit 607, and mapping by the mapping unit 608 are performed, carrier modulation is performed as the carrier modulation unit 606, and output from the output 609.
  • the delay correction unit 603 performs delay correction on the delay time difference between hierarchies caused by the time axis operation of byte interleaving and bit interleaving in advance to adjust the timing.
  • the coding rate of the convolutional code, the interleave length, and the carrier modulation scheme are set independently in each layer.
  • the signal layered by the layer combining unit 216 is effective for error correction coding against electric field fluctuations and multipath interference in mobile reception.
  • the interleaving unit 213 performs time interleaving and frequency interleaving.
  • the time interleaving method is convolutional interleaving in order to shorten the combined delay time and reduce the memory capacity of the receiver.
  • frequency interleaving is configured by combining inter-segment and inter-segment interleaving so that a sufficient interleaving effect can be exhibited while ensuring a segment structure.
  • the output of the interleave unit 213 is input to the frame configuration unit 214 (input 701 in FIG. 7).
  • the operation of the frame configuration unit 214 will be described with reference to FIG.
  • a TMCC (Transmission-and-Multiplexing-Configuration-Control) signal is transmitted using a specific carrier as control information for smoothly performing the operation.
  • an AC (Auxiliary Channel) signal which is an extension signal for transmitting additional information related to transmission control of modulated waves assigned to a specific carrier and earthquake motion warning information, is used.
  • OFDM frame configuration section 705 OFDM is obtained by information data from interleave section 213, pilot signal for synchronous reproduction from pilot signal configuration section 702, TMCC signal from TMCC configuration section 703, and AC signal from AC signal configuration section 704.
  • a frame is constructed and output from output 706. This frame configuration is shown in FIG.
  • Si, j represents the carrier symbol in the data segment after interleaving.
  • SP Spcattered Pilot
  • SP is a reference pilot symbol for the receiver to perform quasi-synchronous detection. As shown in FIG. 8, it is inserted once in 12 carriers in the carrier direction and once in 4 symbols in the symbol direction. If SP is interpolated in the symbol direction on the receiving side, SP of 3 (12/4) carrier interval can be obtained. Since the maximum value of the guard interval length is 1/4 of the effective symbol length, multipath up to the maximum delay time that does not cause intersymbol interference is achieved by interpolation processing (transmission path characteristics estimation) by SP of 3 carrier intervals. Is possible. When the guard interval ratio is 1/4, an SP of 4 carrier intervals may be used in principle, but it is inserted once in 4 symbols in the symbol direction in consideration of the characteristics of the interpolation filter.
  • the example in FIG. 8 is mode 1, but the carrier number in mode 1 is 0 to 107, whereas in mode 2 and mode 3, it is 0 to 215 and 0 to 431, respectively.
  • the AC signal is arranged as shown in FIG. 8 and has a data amount of 204 bits per carrier.
  • two AC signals are arranged for each segment in mode 1, four in mode 2, and eight in mode 3.
  • TMCC signals are arranged as shown in FIG. 8 and have a data amount of 204 bits per carrier. Further, one TMCC signal is arranged for each segment in mode 1, two in mode 2, and four in mode 3.
  • All signals that have completed the frame configuration are output from the output 706 and input to the reconnection frame configuration unit 205.
  • the reconnection frame configuration unit 205 there are two 13-segment format encoding units 202a and 202b, which are input to the reconnection frame configuration unit 205, respectively.
  • Each TS is converted into a burst signal format of 188 bytes by a clock four times the IFFT sample clock, and a Reed-Solomon outer code is added by the RS encoder 221. Thereafter, the signal is input to the modulation / coding unit 222 (input 601 in FIG. 6).
  • the operation of the modulation / coding unit 222 is as described with reference to FIG. 6 in the case of the 13-segment format coding unit 202.
  • the code rate, interleave length, and carrier modulation scheme of the set convolutional code are used.
  • Interleaving section 223 performs time interleaving and frequency interleaving.
  • the time interleaving method is convolutional interleaving in order to shorten the combined delay time and reduce the memory capacity of the receiver.
  • frequency interleaving is configured by combining inter-segment and inter-segment interleaving so that a sufficient interleaving effect can be exhibited while ensuring a segment structure.
  • the output of the interleave unit 223 is input to the frame configuration unit 224 (input 701 in FIG. 7).
  • the operation of the frame configuration unit 224 is as described with reference to FIG. 7 in the case of the 13 segment format encoding unit 202.
  • All signals that have completed the frame configuration are input to the concatenated frame configuration unit 204.
  • the concatenated frame configuration unit 204 there are seven 1-segment format encoding sections 203a, b, c, d, e, f, and g, which are input to the concatenated frame configuration section 204, respectively.
  • Each segment of type B (5 segments) is assigned to each block of 203a [TS2], b [TS3], c [TS4], d [TS5], e [TS6] and connected.
  • the frames are connected by the frame configuration unit 204 and output to the reconnection frame configuration unit 205.
  • Super segment 2 A segment of type B (one segment) is assigned to a block 203f [TS7], is input to the concatenated frame configuration unit 204, and is output to the reconnection frame configuration unit 205.
  • Super segment 3 13 segments of type A (1 13 segments) are allocated to the block 202a [TS1] and output to the reconnection frame configuration unit 205.
  • Super segment 4 A segment of type B (one segment) is assigned to a block of 203g [TS8], is input to the concatenated frame configuration unit 204, and is output to the reconnection frame configuration unit 205.
  • Super segment 5 13 segments of type A (1 13 segments) are allocated to the block 202b [TS9] and output to the reconnection frame configuration unit 205.
  • Super segment 1 13 segments of type A (1 13 segments) are assigned to the block 202a [TS1] and output to the reconnection frame configuration unit 205.
  • Each segment of type B (7 segments per segment) is 203a [TS2], b [TS3], c [TS4], d [TS5], e [TS6], f [TS7], g [TS8 ] are concatenated by the concatenated frame configuration unit 204 and output to the reconnection frame configuration unit 205.
  • Super segment 3 13 segments of type A (1 13 segments) are allocated to the block 202b [TS9] and output to the reconnection frame configuration unit 205.
  • [] Is the TS number input to each of the 13-segment format encoding unit 202 and the 1-segment format encoding unit 203.
  • the subchannel and the TS number can be associated with each other.
  • the concatenated frame configuration unit 204 configures super segment 1 by concatenating five outputs of OFDM segments 203a, b, c, d, and e in one segment format. It is composed of one segment-format OFDM segment 203f output, super segment 4 is composed of one segment-format OFDM segment 203g output, each of which is a type B super segment, and is output to the reconnection frame configuration section 205.
  • the concatenated frame configuration unit 204 configures the super segment 2 by concatenating seven outputs of OFDM segments 203a, b, c, d, e, f, and g in one segment format.
  • the super segment of B is output to the reconnection frame configuration unit 205.
  • the outputs of the 13 segment format encoding units 202a and 202b are type A super segments, which are output to the reconnection frame configuration unit 205, respectively.
  • the reconnection frame configuration unit 205 receives the above type A super segment and type B super segment and concatenates these super segments to form a concatenated OFDM segment. When the super segments are connected, phase compensation for the center frequency difference and phase correction for pilot modulation phase mismatch are performed.
  • the IFFT / guard interval adding unit 206 converts the concatenated OFDM segment, which is an output signal of the reconcatenated frame configuration unit 205, into an OFDM signal by IFFT calculation, adds a guard interval, and converts it into an OFDM transmission signal. Then, it is converted into a digital broadcast transmission signal having a frequency determined by up-converter unit 207, power amplified by transmission amplifier unit 208, and transmitted by antenna 209.
  • This digital broadcast transmission signal is generated by collectively processing IFDM / guard intervals on connected OFDM segments.
  • the 13-segment format part is divided into a maximum of 3 layers (including 1 segment can be partially received), and the convolutional code coding rate, interleave length, carrier modulation method, etc. can be set independently for each layer. .
  • the convolutional code coding rate, interleave length, carrier modulation scheme, etc. can be set for each segment.
  • the digital broadcast transmitting apparatus corresponding to the super segment configuration in the example of FIG. 2 performs nine transmission path encoding processes in parallel.
  • the concatenated transmission of this digital broadcast transmission method refers to transmitting a plurality of segments (13 segment format and 1 segment format) from the same transmission point without a guard band.
  • the restrictions of parameters at the time of concatenated transmission are shown below.
  • the number of Type A super segments shall be one or more.
  • the structure of the OFDM segment carrier structure so that multiple segments can be connected, and the bandwidth and transmission characteristics suitable for the service. And terrestrial digital television system and terrestrial digital audio system can be interoperable, and hardware and software resources can be shared.
  • FIG. 9 shows the TMCC signal configuration (TMCC carrier bit allocation).
  • the TMCC signal is used to transmit information related to the demodulation operation of the receiver, such as a hierarchical configuration and transmission parameters of each OFDM segment.
  • TMCC signal bit assignment was the same as that for terrestrial digital television broadcasting and terrestrial digital audio broadcasting. This is to facilitate the TMCC signal decoding process and reduce the burden on the receiver.
  • the differential demodulation standard is 1 bit and specifies the amplitude and phase standards.
  • the synchronization signal consists of a 16-bit word.
  • the synchronization signal is used to establish synchronization of the TMCC signal and OFDM frame synchronization.
  • the polarity of the synchronization signal is inverted for each frame. Since the TMCC information is not inverted every frame, pseudo synchronization pull-in can be avoided by inversion every frame.
  • the segment format identification is a signal for identifying whether the segment is a differential modulation unit or a synchronous modulation unit. It is composed of 3 -bit words, and is assigned “111” in the case of the differential modulation unit and “000” in the case of the synchronous modulation unit.
  • the number of TMCC carriers varies depending on the segment format. When the partial reception segment belongs to the synchronous modulation unit, there is only one TMCC carrier. Even in this case, 3 bits are assigned to the identification signal so that reliable decoding is possible, and the inverted signal has the maximum intersymbol distance.
  • Figure 10 shows the bit assignment of TMCC information.
  • TMCC information is information that assists the demodulation and decoding operations of the receiver, such as system identification, transmission parameter switching index, emergency warning broadcast activation flag, current information, and next information.
  • TMCC information 90 bits are currently defined, but the remaining 12 bits are reserved for future expansion. All the reserved bits are stuffed with “1”.
  • B and C hierarchies of the 1-segment format are reserved for bit allocation in order to maintain compatibility with the 13-segment format. However, as will be described later, information indicating an unused hierarchy is assigned.
  • the 13-segment format compatible with the digital terrestrial television broadcasting system is '00'
  • the 1-segment format compatible with the digital terrestrial audio broadcasting system is '01'. The remaining values are reserved.
  • the current information indicates the current layer configuration and transmission parameters, and the next information indicates the transmission parameters after switching, and these are sent simultaneously. This is intended to improve the response of the receiver by using current information, assuming that the receiver is powered on or the channel is switched during the countdown.
  • the transmission parameter switching index is counted down.
  • the transmission parameter switching index is not counted down.
  • the receiver is notified of the switching and the timing is taken. This index usually takes a value of ‘1111’, but when the transmission parameter is switched, 1 is subtracted for each frame from 15 frames before the switching. It should be noted that after “0000”, it returns to “1111”.
  • the switching timing is the next frame synchronization for sending “0000”. That is, the new transmission parameter is applied from the frame returned to ‘1111’.
  • the next information can be set or changed at an arbitrary time before the switching countdown, but cannot be changed during the countdown.
  • Fig. 12 shows the allocation of emergency warning broadcast activation flags.
  • the activation flag is set to '1' when activation control for the receiver is performed, and the activation flag is set to '0' when activation control is not performed.
  • the partial reception flag is set to ‘1’ when the segment (segment No. 0) at the center of the transmission band is set for partial reception in the 13-segment format, and is set to ‘0’ otherwise.
  • segment No. 0 is set for partial reception
  • the layer is defined as layer A in FIG.
  • the flag is set to “0”. This is consistent with the fact that the digital terrestrial audio system uses this flag as a format identification flag, which is ‘0’ for the 1-segment format and ‘1’ for the 3-segment format. If there is no next information, the flag is set to ‘1’.
  • FIG. 14 shows transmission parameter information included in the current / next information. If there is no unused layer or next information in the transmission parameter information, those bits are set to ‘1’.
  • FIG. 15 shows an explanation of the connected transmission phase correction amount.
  • concatenated transmission when a received segment uses the lower end carrier of the upper adjacent segment as a reference signal, it is used to correct the phase of the carrier for each symbol. If there is no phase correction, including the case of no concatenated transmission, “111” is set.
  • TMCC information B20 to B121 is error-correction-encoded with a shortened code (184,102) of the difference set cyclic code (273,191).
  • TMCC information requires transmission reliability higher than that of a data signal in order to specify transmission parameters and control a receiver.
  • the error correction code of TMCC is a shortened code of the difference set cyclic code (273,191) ( 184,102). Further, since the TMCC signal is transmitted by a plurality of carriers, it is possible to reduce the required C / N and improve the reception performance by analog addition of the signals.
  • the TMCC signal can be received with a smaller C / N than the data signal.
  • the synchronization signal and the segment format identification information are excluded from the error correction target, all the bits of the plurality of TMCC carriers are made the same, and each bit including the parity bits is included. Enables majority vote.
  • FIG. 16 shows an embodiment of a service of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus of FIG.
  • 1601 is a pushcast broadcast
  • 1602 is a mixed broadcast of pushcast broadcast and real-time broadcast
  • 1603 is real-time broadcast
  • 1604 is pilot broadcast.
  • Pushcast broadcast 1601 is a service in which non-time-dependent file-type content is automatically downloaded. For example, electronic newspapers, music, sports clips, news clips, shopping, lifestyle information, gourmet magazines, cooking information, languages, dramas, movies, etc. can be considered. In addition, a menu linked to an information address (in FIG. 16, described as WEB) that can search for various types of information can be considered.
  • the feature of pushcast broadcasting is that content can be distributed in advance and viewed at a time convenient for the user.
  • Real-time broadcast 1603 is a stream-type broadcast, and a program in which “watching now” is important is provided. For example, news, weather forecast, sports, etc. You may broadcast shopping, education, and premium programs in real time.
  • Mixed broadcast 1602 is a broadcast in which real-time broadcast and pushcast broadcast are mixed according to time.
  • Pilot broadcast 1604 navigates the entire service of pushcast broadcast 1601, mixed broadcast 1602, and real-time broadcast 1603. It also indicates which service is transmitted on which subchannel or which TS of which super segment. Therefore, it is necessary to determine in advance which frequency arrangement the pilot broadcast 1604 is sent.
  • FIG. 17 is an explanatory diagram showing an example of a segment configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus of the present invention.
  • FIG. 17 shows the segment configuration example described with reference to FIG. 4.
  • 1701 is a pilot segment
  • 1702 is a pilot segment.
  • the pilot segment is a segment for transmitting a pilot broadcast, and is a 1-segment format segment or a 13-segment format partial reception segment.
  • the segment is [super segment 4, center subchannel number 1], and the center frequency is (216 + 1/7) MHz.
  • the center frequency is (214 + 6/7) MHz. This frequency arrangement is determined at this position in the example of FIG.
  • Type B (5 segments) is assigned 5 programs of real-time broadcast 1603 to each segment format, for example, TS2 is news, TS3 is weather, TS4 is shopping, TS5 is sport, TS6 is Education.
  • Super segment 2 One program of real-time broadcast 1603 is assigned to type B (one segment) to one segment format, and TS7 is made premium.
  • Pushcast broadcast 1601 is assigned to type A (1 13 segments) and TS1.
  • Pilot broadcast 1604 is assigned to type B (one segment) as a pilot segment, and TS8 is set.
  • Super segment 5 Mixed broadcast 1602 is assigned to type A (one 13 segment), and TS9 is set.
  • Super segment 1 Mixed broadcast 1602 is assigned to type A (one 13 segment), and TS1 is set.
  • Super segment 2 Type B (seven segments) type 6 (real-time broadcast 1603) programs and pilot broadcasts 1604 as pilot segments are all assigned to one segment format.
  • TS2 is news
  • TS3 is weather
  • TS4 is shopping
  • TS5 is pilot broadcast 1604
  • TS6 is sport
  • TS7 is education
  • TS8 is premium.
  • Pushcast broadcast 1601 is assigned to type A (1 13 segments) and is TS9.
  • This assignment is performed by the multimedia signal generation unit 201 in FIG.
  • one type B super segment of one segment type is used as a pilot segment
  • one segment among seven type B super segments connected in one segment type is used as a pilot. It is a segment. Therefore, the example of FIG. 17A is suitable when processing is performed in units of super segments, and the example of FIG. 17B has characteristics that are suitable when processing is performed in units of TS.
  • FIG. 18 is a configuration example of program information which is an example of pilot information transmitted by pilot broadcasting.
  • the program information includes the program identification representing the program, the broadcast type indicating whether the program is real-time broadcast, pushcast broadcast, or pilot broadcast, the date and time when it is broadcast, and the provider that broadcasts the program. There is an operator identification that represents.
  • information indicating which segment is being transmitted is necessary. As shown in [Formula 1], the center frequency of the segment being sent is determined if the start frequency and center subchannel number of the physical channel in which the super segment is arranged are known.
  • the receiving side needs information on the super segment type whether the segment is a 13-segment format or a 1-segment format.
  • the program information is [date / time, program identification, broadcast type, operator identification, super segment number, super segment type, physical channel, central subchannel]. If the physical channel is predetermined as shown in FIGS. 17 (a) and 17 (b), only the physical channel number need be indicated. Of course, only the frequency of the physical channel itself or the start frequency or the end frequency of the physical channel may be indicated. This is because the bandwidth of the physical channel is determined to be 6 MHz.
  • the super segment configuration in one segment format can be confirmed by indicating the number of connections in one segment format, and the super segment configuration can be determined by the super segment number.
  • pilot broadcasts such as program advertisements can be performed in addition to the pilot segment.
  • FIG. 18 (b) is such that the TS number is sent as program information instead of the super segment number, super segment type, physical channel, and subchannel of FIG. 18 (a).
  • the TS number can be represented by a super segment number, a super segment type, and a subchannel, and the center frequency can be determined by the start frequency of the physical channel and the center subchannel number.
  • this TS information is transmitted as pilot information.
  • FIG. 18 (c) shows the channel selection frequency on the receiving side directly in the program information. If the channel selection frequency and the super segment type are known, it can be determined whether or not reception is possible with a receiver described later.
  • the receiver can tune directly to the program simply by looking at the program information, and the channel selection operation is easy.
  • the pilot information shown in FIG. 18 is sent, even if the super segment configuration changes from a certain date and time, the program information setting from a certain date and time can be changed to follow the contents of the change in the super segment configuration. For example, there is an effect that the receiver side can receive without being aware of the change of the super segment configuration. However, the position (frequency arrangement) of the pilot segment should not be changed.
  • FIG. 19 is a block diagram showing a configuration of a digital broadcast receiving apparatus according to the second embodiment of the present invention.
  • the digital broadcast receiving apparatus in FIG. 19 receives a digital broadcast transmission signal transmitted from the digital broadcast transmitting apparatus in FIG.
  • 1926 is a digital broadcast receiver.
  • Reference numeral 1901 denotes an antenna
  • 1902 denotes a channel selection unit
  • 1903 denotes an orthogonal demodulation unit
  • 1904 denotes a fast Fourier transform (hereinafter referred to as FFT) unit
  • 1905 denotes demodulation / decoding operation for demodulating / decoding digital broadcast transmission signals from the FFT unit 1904 to the TS output.
  • 1906 is a synchronous reproduction unit
  • 1907 is a frame extraction unit
  • 1908 is a TMCC decoding unit, which reproduces a synchronous signal for operating the demodulation / decoding unit 1905 and obtains information such as transmission parameters.
  • a front end (hereinafter referred to as F / E) unit 1924 is configured from the channel selection 1902 to the TMCC decoding unit 1908.
  • 1928 is a descrambling part 1
  • 1929 is a descrambling part 2
  • 1909 is a demux part
  • 1910 is a decoding part of the compressed broadcast audio signal
  • 1911 is an audio output part for outputting the decoded broadcast audio signal
  • 1912 is a compression part 1913 is a presentation processing unit constituting a display screen
  • 1914 is a video output unit for displaying the decoded broadcast video signal
  • 1915 is PSI (Program Specific Information) / SI (Service Information). It is a system decoding unit that handles system information such as.
  • the descrambling part 1928, the descrambling part 2 1929, and the demax part 1909 to the system decoding part 1915 constitute a back-end trap (hereinafter B / E) part 1925.
  • 1916 is a rewritable nonvolatile memory (hereinafter referred to as NVRAM), 1917 is a ROM such as a font (Read Only Memory), 1918 is a main memory RAM (Random Access Memory), and 1919 is a communication line interface (hereinafter I / F).
  • 1920 is an input / output unit (hereinafter referred to as I / O)
  • 1921 is a system bus
  • 1922 is a central processing unit (hereinafter referred to as CPU)
  • 1923 is a button for operating a remote control
  • 1930 is a CAS ( Conditional Access System)
  • 1931 is a recording medium
  • 1927 is a removable medium.
  • a digital broadcast transmission signal input to the digital broadcast receiver 1926 by the antenna 1901 is converted into a TS (transport stream) by the F / E unit 1924.
  • the demodulated TS is selectively decrypted by the descrambling unit 1928 using the license information stored in the CAS 1930.
  • the license information may be supplied by the communication I / F 1919 via a network or may be supplied by the removable medium 1927.
  • the decoded TS is separated into video, audio, and other data by the demax unit 1909, and the video stream is output to the video decoding unit 1912 and the audio stream is output to the audio decoding unit 1910.
  • the decoded video signal forms a display screen by the presentation processing unit 1913 and is output by the video output 1914.
  • the decoded audio signal is output as an audio output 1911.
  • a digital broadcast transmission signal input to the digital broadcast receiving device 1926 by the antenna 1901 is converted into a TS (transport stream) by the F / E unit.
  • the demodulated TS is input to the descramble 1 unit 1928, but is not decoded here. Subsequently, only the data related to the content to be stored is separated and stored in the recording medium 1931 by the input demax unit 1909.
  • the access control common information and the access control individual information are distributed via the broadcast wave, they are separated by the demux unit 1909 and stored in the recording medium 1931.
  • the access control common information and the access control individual information are distributed via the network, they are acquired via the communication I / F 1919 before or during reproduction and stored in the recording medium 1931.
  • the access control common information and the access control individual information are distributed via the network, they are acquired via the I / O 1920 before or during reproduction and stored in the recording medium 1931.
  • data related to the content to be reproduced is read from the recording medium 1931 and input to the descrambling 2 unit 1929 and encrypted using the access control common information and the access control individual information stored in the recording medium 1931.
  • Decode data selectively.
  • the decoded TS is separated into video, audio, and other data by the demax unit 1909, and the video stream is output to the video decoding unit 1912 and the audio stream is output to the audio decoding unit 1910.
  • the decoded video signal forms a display screen by the presentation processing unit 1913 and is output by the video output 1914.
  • the decoded audio signal is output as an audio output 1911.
  • the CPU 1922 controls each block of the F / E unit 1924 and the B / E unit 1925 via the system bus 1921 so that the digital broadcast receiver 1926 reproduces normal video and audio. Do.
  • the data is once transferred to the RAM 1918, NVRAM 1916 or the like and processed by the CPU 1922.
  • the data on the RAM 1918 is transferred to the video and audio decoder simultaneously with the presentation of the characters and graphics, and processing such as video and audio playback processing is performed.
  • the communication I / F 1919 is used to exchange information with the outside of the digital broadcast receiver 1926.
  • the operation of the digital broadcast receiving apparatus can be performed with the button 1923 via the I / O 1920.
  • Fig. 20 shows the types of digital broadcast receivers.
  • the digital broadcast transmission signal from the digital broadcast transmission apparatus in FIG. 2 includes a 13-segment super segment and a 1-segment super segment. Receivers that can receive each of these can be defined, but 13/1 segment format reception that can receive both 13 segment format and 1 segment format, and only the partial reception layer of 13 segment format in addition to 1 segment format Can be defined partial reception / 1 segment format reception.
  • the digital broadcast receiving apparatus 1926 in FIG. 19 performs either 13/1 segment format reception or partial reception / 1 segment format reception.
  • FIG. 21 shows the configuration of the demodulation / decoding unit 1905 in the case of 13/1 segment format reception
  • FIG. 22 shows the configuration of the demodulation / decoding unit 1905 in the case of partial reception / 1 segment format reception.
  • 2101 and 2201 are input signals from the FFT unit 1904
  • 2102 and 2202 are carrier demodulation units
  • 2103 and 2203 are deinterleave units
  • 2104 and 2204 are demapping units
  • 2105 and 2205 are bit deinterleave units
  • 2106 and 2206 Is a depuncture unit
  • 2107 and 2207 are Viterbi decoding units
  • 2108 and 2208 are byte deinterleaving units
  • 2109 and 2209 are energy despreading units
  • 2110 and 2210 are TS reproduction units
  • 211 and 211 are RS (Reed-Solomon) decoding units.
  • Reference numerals 2112 and 2212 denote outputs of the demodulation / decoding unit 1905.
  • the bit deinterleaving unit 2105, the depuncturing unit 2106, the byte deinterleaving unit 2108, and the energy despreading unit 2109 are respectively provided for three layers a, b, and c, and 2121 and 2123 are divided into three layers. It is a layer composition unit that composes layers.
  • the channel frequency band to be received by the channel selection unit 1902 is extracted from the digital broadcast transmission signal received by the antenna 1901, the signal channel-selected by the orthogonal demodulation unit 1903 is orthogonally demodulated into a baseband signal, and the frequency is output by the FFT unit 1904. It is converted to axis processing, and FFT is performed for a period corresponding to an effective symbol among OFDM symbols. At that time, the multipath situation of the received signal is taken into consideration, and the FFT processing is performed in an appropriate period.
  • the carrier demodulation unit 2102 performs demodulation processing on each carrier on the frequency axis (for example, synchronization using a scattered pilot (SP) for QPSK, 16QAM, and 64QAM).
  • SP scattered pilot
  • Demodulation is performed to detect amplitude and phase information
  • frequency axis and time axis deinterleaving is performed by the deinterleaving unit 2103
  • demapping is performed by the demapping unit 2104.
  • Bit deinterleaving is performed by the interleaving units 2105a, b, and c
  • depuncturing is performed by the depuncturing units 2106a, b, and c
  • synthesis is performed by the layer synthesizing unit 2122
  • Viterbi decoding is performed by the Viterbi decoding unit 2107
  • each layer is divided by the layer dividing unit 2121.
  • Byte deinterleaving and energy in the interleaving unit 2108 -Despreading unit 2109 performs energy despreading
  • TS playback unit 2110 performs TS playback
  • RS decoding unit 2111 performs error correction
  • a digital broadcast signal is demodulated.
  • transport defined in MPEG2 Systems A stream (TS) signal is output to the descramble 1 unit 1928 and the demax unit 1909.
  • the system in the case of receiving a signal in 1 segment format and in the case of receiving in 13 segment format, the system is identified by the system identification shown in FIG. 11 of the TMCC signal decoded by the TMCC decoding unit 1908, and digital terrestrial audio
  • a 1-segment format is received
  • a 13-segment format is received (mainly handling the partial reception flag shown in FIG. 13).
  • the layer division 2121 and 2123 do not perform layer division, but perform processing using, for example, a system block. Since no hierarchical division is performed, hierarchical synthesis in the hierarchical synthesis 2122 is not necessary.
  • processing may be performed using only the system a as in the case of the one segment format, or may be divided into three layers and one of them may be processed as a partial reception layer. .
  • the channel frequency band of the channel selection 1902 may be extracted as one segment.
  • the channel frequency band to be received by the channel selection unit 1902 from the digital broadcast transmission signal received by the antenna 1901 in this case, the frequency band for one segment is extracted, and the channel-selected signal is orthogonally demodulated by the orthogonal demodulation unit 1903.
  • a band signal is converted into frequency axis processing by an FFT unit 1904, and FFT is performed for a period corresponding to an effective symbol among OFDM symbols. At that time, the multipath situation of the received signal is taken into consideration, and the FFT processing is performed in an appropriate period.
  • the carrier demodulation unit 2202 performs demodulation processing on each carrier on the frequency axis (for example, synchronization using scattered pilot (SP) for QPSK, 16QAM, and 64QAM).
  • SP scattered pilot
  • deinterleave unit 2203 for frequency axis and time axis, demap unit demapping unit 2204, bit deinterleave unit 2205, and depuncture unit 2206
  • Viterbi decoding unit 2207 performs Viterbi decoding
  • Byte deinterleaving unit 2208 performs byte deinterleaving
  • Energy despreading unit 2209 performs energy despreading
  • TS reproduction unit 2210 performs TS reproduction
  • RS decoding unit 2211 performs error correction.
  • Digital broadcasting The signal is demodulated, and, for example, a transport stream (TS) signal defined by MPEG2 Systems is output to the descramble 1 unit 1928 and the demax unit 1909.
  • TS transport stream
  • the system in the case of receiving a signal of 1 segment format and in the case of partial reception of 13 segment format, the system is identified by the system identification shown in FIG. 11 of the TMCC signal decoded by the TMCC decoding unit 1908, and the terrestrial digital
  • partial reception processing is performed in the 1 segment format, and in the case of a digital terrestrial television broadcasting system, partial reception processing is performed (mainly handling of the partial reception flag shown in FIG. 13).
  • the synchronization reproduction unit 1906 receives the baseband signal from the orthogonal demodulation unit 1903 and reproduces the OFDM symbol synchronization signal and the FFT sample frequency according to the mode and the guard interval length. When the mode and the guard interval length are unknown, the mode and guard interval length can also be determined based on the correlation of the guard period of the OFDM signal. Further, the frequency position of the TMCC signal is detected from the output signal of the FFT unit 1904. The frame extraction unit 1907 demodulates the TMCC signal at the detected frequency position and extracts a frame synchronization signal from the TMCC signal. The frame synchronization signal is output to the synchronization reproduction unit 1906, and phase adjustment with the symbol synchronization signal is performed.
  • the TMCC decoding unit 1908 performs error correction of the differential cyclic code on the demodulated TMCC signal, and extracts TMCC information such as a hierarchical structure and transmission parameters.
  • the TMCC information is output to the demodulation / decoding unit 1905 and used as various control information for the demodulation / decoding process. Since there is a phase difference between segments in the concatenated transmission signal, the carrier phase at the lower end of the upper adjacent segment must be corrected for reception of the synchronous modulation segment that uses the carrier at the lower end of the upper adjacent segment for demodulation.
  • the TMCC decoding unit 1908 is always operating when trying to receive an emergency alert broadcast, and monitors the emergency alert broadcast activation flag shown in FIG.
  • the channel selection unit 1902, the quadrature demodulation unit 1903, the FFT unit 1904, the synchronous reproduction unit 1906, and the frame extraction unit 1907 are always operating.
  • the operations of the channel selection unit 1902, the orthogonal demodulation unit 1903, the FFT unit 1904, the synchronous reproduction unit 1906, and the frame extraction unit 1907 are segment No. 0 in the case of 13 segment format, that is, only the partial reception part when receiving an emergency warning broadcast It is only necessary to perform the process. As a result, it is possible to achieve a low power consumption operation compared to processing the entire 13-segment band of this digital broadcast. In the case of 1 segment format, only 1 segment bandwidth is required.
  • descrambling 1 section 1928 and demax section 1909 descrambling of the scrambled TS signal for copyright protection is canceled, and the desired compressed broadcast video signal and compressed broadcast audio signal digital signal Are extracted and output to the decoding units 1910, 1912 and 1915.
  • the decoding unit 1912 decodes the compressed broadcast video signal
  • the decoding unit 1910 decodes the compressed broadcast audio signal
  • the decoded video signal forms a display screen in the presentation processing unit 1913
  • the video output unit 1914 decodes the display screen.
  • the audio signal thus output is output to the audio output unit 1911.
  • step 2301 the reception operation is started.
  • the CPU 1922 controls each block via the system bus 1921.
  • step 2302 the channel selection unit 1902 first selects the pilot segment 1701 or 1702 at the frequency position determined.
  • step 2303 the TS is demodulated by the F / E unit 1924, the pilot information of FIG. 18 is extracted by the descrambling unit 1928 and the demax unit 1909, and is decoded by the system decoding unit 1915.
  • FIG. 24 shows an example of the service tuning table. They are organized by operator identification, broadcast type, date / time, and program type, and a channel selection frequency and a super segment type are assigned to each content of a real-time broadcast program or pushcast broadcast content.
  • the channel selection frequency is the center frequency of the center subchannel.
  • step 2305 real-time broadcast, pushcast broadcast, and downloaded service table are displayed.
  • a real-time broadcast service table is preferentially displayed, and a user selects a pushcast broadcast or a downloaded service table using a menu or the like.
  • FIG. 25 shows an example of a service table.
  • FIG. 25A shows an example of real-time broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • FIG. 25A shows an example of real-time broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • FIG. 25A shows an example of real-time broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • FIG. 25A shows an example of real-time broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • FIG. 25 (a) the program broadcast at the current time is displayed.
  • the program In the case of partial reception / 1-segment format reception, if the program is transmitted in a layer other than the partial reception segment in type A (13 segment format), it cannot be received. Disable selection.
  • step 2306 select the program you want to watch.
  • you may have a function which searches a program by a date, time, and a provider.
  • the channel selection unit 1902 when the channel selection unit 1902 is a channel selection frequency and transmission is performed in a type A other than partial reception, the channel frequency band is 13 segment bandwidth, and the F / E unit 1924 is 13 segment format demodulation. To do.
  • the channel frequency band In the case of transmission by partial reception in type A and in the case of type B, the channel frequency band is a band of one segment, and the F / E section 1924 performs partial reception demodulation in the case of partial reception, and one segment format demodulation in the case of type B. To do.
  • step 2308 the program is output.
  • Fig. 25 (b) shows the contents that can be downloaded now.
  • the contents to be downloaded are selected.
  • the already downloaded contents are displayed as “downloaded” so that they cannot be selected.
  • step 2310 a download reservation is made. If it is time to download, the channel selection unit 1902 in step 2311 uses the content reserved by the service channel selection table of FIG. 24 as the channel selection frequency, and if it is transmitted by type A other than partial reception, the channel frequency band is 13 segments.
  • the F / E unit 1924 performs 13 segment format demodulation. In the case of transmission by partial reception in type A and in the case of type B, the channel frequency band is a band of one segment, and the F / E section 1924 performs partial reception demodulation in the case of partial reception, and one segment format demodulation in the case of type B. To do.
  • Fig. 25 (c) shows the content already downloaded. Playback is selected at step 2313 and output at step 2314.
  • the download service table may be selected at the start of step 2301.
  • FIG. 26 is an explanatory diagram showing an example of a service configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus according to the third embodiment of the present invention.
  • 2601 is a pushcast broadcast
  • 2602 is a mixed broadcast of pushcast broadcast and real-time broadcast
  • 2603 is a real-time broadcast
  • 2604 is a pushcast broadcast pilot broadcast
  • 2605 is a real-time pilot broadcast.
  • the pilot broadcast is provided independently for the pushcast broadcast and the real-time broadcast. As in FIG. 16, it is necessary to determine in advance which frequency arrangement the pilot broadcasts 2604 and 2605 are sent.
  • FIG. 27 is an explanatory diagram showing an example of a segment configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus of the present invention.
  • FIG. 27 shows an example of the segment configuration described in FIG. 2.
  • 2701 is a pilot segment for real time broadcasting
  • 2702 is a pilot segment for pushcast broadcasting
  • 2703 is a real time broadcasting in FIG.
  • 2704 is a pilot segment for pushcast broadcasting.
  • the pilot segment is a segment for transmitting a pilot broadcast, and is a 1-segment format segment or a 13-segment format partial reception segment.
  • the pilot segment 2701 for real-time broadcasting is the segment of [Super segment 2, center subchannel number 1], the center frequency is (210 + 1/7) MHz, and is used for pushcast broadcasting.
  • Pilot segment 2702 is a segment of [super segment 4, center subchannel number 1], and the center frequency is (216 + 1/7) MHz.
  • FIG. 27 (a) the pilot segment 2701 for real-time broadcasting is the segment of [Super segment 2, center subchannel number 1], the center frequency is (210 + 1/7) MHz, and is used for pushcast broadcasting.
  • Pilot segment 2702 is a segment of [super segment 4, center subchannel number 1], and the center frequency is (216 + 1/7) MHz.
  • the pilot segment 2703 for real-time broadcasting is the segment of [Super segment 2, center subchannel number 1], the center frequency is (213 + 4/7) MHz, and the pilot for pushcast broadcasting
  • the segment 2704 is a segment of [Super segment 2, center subchannel number 19], and the center frequency is (216 + 1/7) MHz. This frequency arrangement is determined at this position in the example of FIG.
  • Type B (5 segments) is assigned 5 programs of real-time broadcasting 2603 to each 1 segment format, for example, TS2 is news, TS3 is weather, TS4 is shopping, TS5 is sports premium, Let TS6 be an education.
  • Pilot broadcast 2605 for real-time broadcasting is assigned to type B (one segment) as a pilot segment for real-time broadcasting, and TS7 is set.
  • Super segment 3 Mixed broadcast 2602 is assigned to type A (1 13 segment) and TS1.
  • Super segment 4 Type B (one segment) is assigned a pilot broadcast 2604 for pushcast broadcast as a pilot segment for pushcast broadcast [TS8.
  • Pushcast broadcast 2601 is assigned to type A (one 13 segment) and TS9.
  • Type A (1 13 segments) mixed broadcast 2602 is assigned as TS1.
  • Super segment 2 Type B (7 segments) assigns 5 programs of real-time broadcast 2603, pilot broadcast 2605 for real-time broadcast and pilot broadcast 2604 for push-cast broadcast to each one segment format, for example, TS2 Is a pilot broadcast 2605 for real-time broadcasting, TS3 is news, TS4 is weather, TS5 is shopping, TS6 is a sports premium, TS7 is education, and TS8 is a pilot broadcast 2604 for pushcast broadcasting.
  • TS2 Is a pilot broadcast 2605 for real-time broadcasting
  • TS3 is news
  • TS4 weather
  • TS5 shopping
  • TS6 is a sports premium
  • TS7 is education
  • TS8 is a pilot broadcast 2604 for pushcast broadcasting.
  • Pushcast broadcast 2601 is assigned to type A (1 13 segments) and is TS9.
  • This assignment is performed by the multimedia signal generation unit 201 in FIG.
  • FIG. 28 is a configuration example of program information which is an example of pilot information transmitted by pilot broadcasting.
  • the program information is divided into (1) real-time broadcast information and (2) pushcast broadcast information, which are transmitted in real-time broadcast pilot broadcast and pushcast broadcast pilot broadcast, respectively.
  • (3) pilot broadcast information is provided and transmitted in a pilot broadcast for real-time broadcast and a pilot broadcast for pushcast broadcast, each of which is a pilot broadcast for real-time broadcast or a pilot signal for pushcast broadcast Indicate.
  • the program information for real-time broadcasting and pushcast broadcasting is separated, so that only the necessary broadcast information selected at that time can be obtained on the receiving side. This has the effect of shortening the time required to construct and display the service table shown in. Also, providing pilot broadcast information has an effect that the B / E unit 1925 can confirm whether the currently selected information is for real-time broadcast or pushcast broadcast.
  • FIG. 29 is a flowchart showing a receiving operation of the digital broadcast receiving device 1926 in the fourth embodiment according to the present invention.
  • step 2901 the reception operation is started.
  • the CPU 1922 controls each block via the system bus 1921.
  • step 2906 first, real-time broadcasting, pushcast broadcasting, and downloaded are selected.
  • steps 2902a, 2903a, 2904a, 2905a, 2306, 2307, 2308 are performed for real-time broadcasting, and steps 2902b, 2903b, 2904b, 2905b, 2309, 2309, for push-cast broadcasting. 2310 is selected.
  • step 2902a the channel selection unit 1902 selects the pilot segment 2701 or 2703 for real-time broadcasting at the frequency position determined first. It can be confirmed from the pilot broadcast information that the pilot segment is for real-time broadcasting.
  • step 2903a the F / E unit 1924 demodulates the TS, the descramble 1 unit 1928 and the demax unit 1909 extract the real-time broadcast information which is the pilot information for the real-time broadcast of FIG. .
  • Fig. 30 (a) shows an example of a service channel selection table for real-time broadcasting. They are organized by operator identification, date / time, and program type, and a tuning frequency and a super segment type are assigned to each program of real-time broadcasting.
  • the channel selection frequency is the center frequency of the center subchannel.
  • step 2905a a real-time broadcast service table is displayed.
  • Fig. 25 (a) shows an example of a service table for real-time broadcasting. The following is as described in FIG.
  • the channel selection unit 1902 selects the pilot segment 2702 or 2704 for pushcast broadcasting at the frequency position first determined. It can be confirmed from the pilot broadcast information that the pilot segment is for push cast broadcasting.
  • step 2903b the F / E unit 1924 demodulates the TS, the descramble 1 unit 1928 and the demax unit 1909 extract pushcast broadcast information which is pilot information for pushcast broadcast in FIG. 28, and the system decode unit 1915 Decode.
  • Fig. 30 (b) shows an example of a service channel selection table for pushcast broadcasting. They are organized by operator identification, date / time, and program type, and a tuning frequency and a super segment type are assigned to each pushcast broadcast content.
  • the channel selection frequency is the center frequency of the center subchannel.
  • step 2905b a pushcast service table is displayed.
  • Fig. 25 (b) shows an example of a service table for pushcast broadcasting. The following is as described in FIG.
  • the digital broadcast transmission signal can be received without being aware of the segment configuration. Also, since the program information for real-time broadcasting and pushcast broadcasting is separated, only the necessary broadcast information selected at that time can be obtained, and the service table shown in FIG. 25 is constructed by obtaining the information. This has the effect of shortening the time until display. Also, providing pilot broadcast information has an effect that the B / E unit 1925 can confirm whether the currently selected information is for real-time broadcast or pushcast broadcast.
  • pilot broadcast for pushcast broadcast and pushcast broadcast pilot broadcast for mixed broadcast and real-time broadcast
  • pilot broadcast for real-time broadcast and real-time broadcast pilot broadcast for real-time broadcast and real-time broadcast
  • the mixed broadcast and the pushcast broadcast pilot broadcast are arranged next to each other. Therefore, if the reception side receives the broadcast of each service and the pilot broadcast together, There is an effect that it is possible to shorten the tuning time at the time of tuning or downloading.
  • FIG. 31 is an explanatory diagram showing an example of a service configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus according to the fifth embodiment of the present invention.
  • 3101, 3102 and 3103 are broadcast service groups composed of pushcast broadcasts, real-time broadcasts, and pilot broadcasts having pilot information of those broadcasts.
  • the difference from FIG. 16 is that the broadcast service group that basically performs mixed broadcast is not divided into pushcast broadcast, mixed broadcast, and real-time broadcast, and the pilot service is provided in the broadcast service group. It only has pilot information for broadcasting inside.
  • FIG. 32 is an explanatory diagram showing an example of a segment configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus of the present invention.
  • FIG. 27 shows the segment configuration example described with reference to FIG. 4B, where 3201 is a pilot segment of the broadcast service group 3101, 3202 is a pilot segment of the broadcast service group 3103, and 3203 is a pilot segment of the broadcast service group 3102.
  • the pilot segment is a segment for transmitting a pilot broadcast, and is a 1-segment format segment or a 13-segment format partial reception segment.
  • the pilot segment 3201 of the broadcast service group 3101 is a 13-segment partial reception segment of [super segment 1, center subchannel number 22], the center frequency is (210 + 4/7) MHz
  • the pilot segment 3202 of the service group 3103 is a segment of [super segment 2, center subchannel number 10], the center frequency is (214 + 6/7) MHz
  • the pilot segment 3203 of the broadcast service group 3102 is [super segment 3,
  • the partial reception segment of the 13-segment format of the center subchannel number 22] the center frequency is (219 + 1/7) MHz. This frequency arrangement is determined at this position in the example of FIG.
  • broadcasting segment 3101 is assigned to super segment 1: type A (one 13 segment) and is TS1.
  • Broadcast service group 3103 is assigned to each type of segment B for type B (7 segments), TS2 is news (real-time broadcast), TS3 is weather (real-time broadcast), TS4 is sports (real-time broadcast), TS5 is pilot broadcasting, TS6 is education (real-time broadcasting), TS7 is shopping (pushcast broadcasting), and TS8 is premium (pushcast broadcasting).
  • Super segment 3 Broadcast service group 3102 is assigned to type A (one 13 segment), and TS9 is set.
  • each broadcasting service group is assigned to a super segment. This allocation is performed by the multimedia signal generator 201 in FIG.
  • FIG. 33 is a configuration example of program information which is an example of pilot information transmitted by pilot broadcasting. 18 differs from FIG. 18 in that the program information is divided into (1) super segment 1 information, (2) super segment 2 information, and (3) super segment 3 information, and broadcast information in each super segment is divided into each super segment. It is to be transmitted by pilot broadcasting.
  • broadcast service groups are assigned to super segments, pilot programs for pilot broadcasting are provided for each super segment, and program information is transmitted. Therefore, on the receiving side, program information can be managed in units of super segments. Since it is good, it is possible to obtain only the information of the necessary super segment selected at that time, and it is possible to shorten the time until the information is obtained and the service table shown in FIG. 25 is constructed and displayed.
  • a receiving device capable of receiving in the 13-segment format can receive a super segment 1 or super segment 3 type A super segment, and can also connect one segment in a super segment unit.
  • a receiving apparatus capable of receiving a format has an effect of selecting a program only in the super segment received by using the pilot broadcast in the super segment by collectively receiving the super segment 2.
  • pilot broadcasts are arranged in the partial reception layer of type A (13 segment format), even in a 1 segment format receiver, pilot broadcasts (pilot segments) of the type A super segment service group Can be received.
  • FIG. 34 is a flowchart showing a receiving operation of the digital broadcast receiving apparatus 1926 in the sixth embodiment according to the present invention.
  • step 3401 the reception operation is started.
  • the CPU 1922 controls each block via the system bus 1921.
  • a super segment is first selected.
  • a super segment may be assigned to a broadcasting company, and the broadcasting company may be selected in the menu.
  • the channel selection unit 1902 selects a pilot segment (3201 for super segment 1, 3202 for super segment 2, 3203 for super segment 3) at the predetermined frequency position of the super segment selected in step 3402. Bureau.
  • Step 3403 the F / E unit 1924 demodulates the TS, the descramble 1 unit 1928 and the demax unit 1909 extract the super segment information which is pilot information of FIG. 33, and the system decode unit 1915 decodes it.
  • Fig. 35 shows an example of the service tuning table.
  • Each super segment is organized by operator identification, broadcast type, date / time, and program type, and a tuning frequency and a super segment type are assigned to each program.
  • the channel selection frequency is the center frequency of the center subchannel.
  • step 3405 real-time broadcast, pushcast broadcast, and downloaded service table are displayed.
  • a real-time broadcast service table is preferentially displayed, and a user selects a pushcast broadcast or a downloaded service table using a menu or the like.
  • FIG. 25 shows an example of a service table.
  • FIG. 25A shows an example of real-time broadcasting
  • FIG. 25B shows an example of pushcast broadcasting
  • a receiving device capable of receiving in the 13-segment format can receive a super segment 1 or super segment 3 type A super segment, and can also connect one segment in a super segment unit.
  • a receiving apparatus capable of receiving a format has an effect of selecting a program only in the super segment received by using the pilot broadcast in the super segment by collectively receiving the super segment 2.
  • pilot broadcasts are arranged in the partial reception layer of type A (13 segment format), even in a 1 segment format receiver, pilot broadcasts (pilot segments) of the type A super segment service group Can be received.
  • FIG. 36 is an explanatory diagram showing an example of pilot information of a digital broadcast transmission signal transmitted by the digital broadcast transmission apparatus according to the seventh embodiment of the present invention.
  • the version information consists of a pilot version number and the next scheduled update date and time.
  • the pilot version number is incremented by one when any change is made to the pilot information. The next time it reaches full scale, it returns to zero.
  • the next scheduled update date and time indicates the date and time when the pilot information will be changed next.
  • This information is transmitted in a TS of a broadcast other than the pilot broadcast.
  • pilot version information is provided in this information.
  • the pilot version information has the same contents as the version information of the pilot information.
  • pilot version information can be managed on the receiving side by providing the version information. Further, providing the next update scheduled date and time has an effect that the receiver can prepare for the next update. Furthermore, since pilot version information is provided as TS transmission system information in TS of other broadcasts other than pilot broadcasts, real-time broadcasts and push cast broadcasts other than pilot broadcasts are not received. In this case, the pilot broadcast version information can be obtained from the received TS.
  • version information is added to the pilot signal of FIG. 18 (b), but the pilot information of FIGS. 18 (a) (c), 28 (a) (b) (c), and FIG. May be added to
  • FIG. 37 is a flowchart showing a receiving operation of the digital broadcast receiving apparatus 1926 in the eighth embodiment according to the present invention.
  • FIG. 23 The same reference numerals as those in FIG. 23 represent the same functions.
  • step 3701 the reception operation is started.
  • the CPU 1922 controls each block via the system bus 1921.
  • step 3702 the digital broadcast receiving apparatus 1926 confirms whether the version information of the pilot information is available.
  • the pilot version numbers of the pilot information and the pilot version information of the TS transmission system information are compared in step 3703. If the pilot version numbers are the same, the scheduled update date is confirmed in step 3704. If it is before the scheduled update date, it is determined that the service channel list is the same as that previously created, and the service table is displayed in step 2305.
  • step 3702 If the version information is not available in step 3702, the digital broadcast receiving device 1926 is first started up, the system is reset, etc. In this case, the service tuning table has not yet been created. Therefore, the service tuning table is created after step 2302.
  • the pilot version number of the pilot version information of the TS transmission system information is updated more than the pilot version number of the version information of the pilot information in step 3703, the pilot information is updated, so the service channel selection table needs to be updated. After step 2302, the service tuning table is updated.
  • the service tuning table needs to be updated because the pilot information has been updated, and after step 2302, the service tuning table is updated.
  • step 2302 and Step 2303 The operations in Step 2302 and Step 2303 are as described in FIG.
  • version information is also extracted as pilot information.
  • step 3705 version information is stored.
  • step 2304 a service channel selection table is created or updated and stored.
  • step 2305 the service table is displayed.
  • Steps 2306, 2307, and 2308 when real-time broadcasting is selected in Step 2305, Steps 2309, 2310, 2311, and 2312 when Pushcast broadcasting is selected, and Steps 2313 and 2314 when Downloaded is selected are as follows. As described in FIG.
  • pilot version information is extracted and stored.
  • Real-time broadcasting is processed in steps 3706a, 3707a, 3708a
  • pushcast broadcasting is processed in steps 3706b, 3707b, 3708b. Since the operations are the same, the operations will be described with the subscripts a and b omitted.
  • step 3706 the pilot version information is extracted from the TS transmission system information of FIG. 36 by the descrambling 1 unit 1928 and the demax unit 1909 from the TS demodulated in step 2307, and decoded by the system decoding unit 1915.
  • step 3707 the pilot version number of the pilot version information is confirmed, and if it has been updated as compared with what has been stored previously, or if there is no previous storage, the process proceeds to step 3708.
  • step 3708 the pilot version number of the pilot version information is stored, and the process returns to step 3706.
  • step 3707 the pilot version number of the pilot version information is confirmed, and if it is the same as previously stored, the process returns to step 3706.
  • steps 3706, 3707, and 3708 are repeated to always update the pilot version information to the latest one.
  • the digital broadcast transmission signal can be received without being aware of the segment configuration.
  • version management of pilot information using version information has the effect of promptly displaying the service table when the pilot version number is the same (not updated) and before the scheduled update date and time.
  • pilot version information is provided as TS transmission system information in TS of other broadcasts other than pilot broadcasts, real-time broadcasts and push cast broadcasts other than pilot broadcasts are not received. In this case, it is possible to obtain the pilot version information from the received TS and confirm the update of the pilot information.
  • FIG. 38 is an explanatory diagram showing an example of a segment configuration of a digital broadcast transmission signal transmitted by the digital broadcast transmission device according to the ninth embodiment of the present invention.
  • FIG. 38 shows the segment configuration example described with reference to FIG. 4.
  • reference numerals 3801 and 3802 denote pilot segments in the segment configuration examples (a) and (b), respectively.
  • the pilot segment is a segment for transmitting a pilot broadcast, and is a 1-segment format segment or a 13-segment format partial reception segment.
  • FIG. 38 differs from the segment configuration example of FIG. 17 in that the frequency arrangement of pilot segments is aligned in FIGS. 38 (a) and 38 (b).
  • the pilot segment 3801 is a segment of [super segment 4, center subchannel number 1], the center frequency is (216 + 1/7) MHz, and in the example of FIG.
  • the segment 3802 is a segment of [Super segment 2, center subchannel number 19], the center frequency is (216 + 1/7) MHz, and the pilot segment frequency arrangement is the same in FIGS. 38 (a) and (b). is there. This frequency arrangement is determined at this position in the example of FIG.
  • Super Segment 1 Type B (5 segments) is assigned 5 programs of real-time broadcasting 1603 to each segment format, TS2 is news, TS3 is weather, TS4 is shopping, TS5 is sports, TS6 is education To do.
  • Super segment 2 One program of real-time broadcast 1603 is assigned to type B (one segment) to one segment format, and TS7 is made premium.
  • Pushcast broadcast 1601 is assigned to type A (1 13 segments) and TS1.
  • Pilot broadcast 1604 is assigned to type B (one segment) as a pilot segment, and TS8 is set.
  • Super segment 5 Mixed broadcast 1602 is assigned to type A (one 13 segment), and TS9 is set.
  • Super segment 1 Type A (1 13 segments) is assigned pushcast broadcast 1601 to TS1.
  • Super segment 2 Type B (seven segments) type 6 (real-time broadcasting 1603) and pilot broadcasting 1604 as pilot segments are assigned to one segment format, TS2 is news, TS3 is weather, TS4 is shopping, TS5 Are sports, TS6 is education, TS7 is premium, and TS8 is pilot broadcasting 1604.
  • Super segment 3 Mixed broadcast 1602 is assigned to type A (one 13 segment) and TS9.
  • one type B super segment of one segment type is used as a pilot segment
  • one segment of seven type B super segments connected in one segment type is used as a pilot. It is a segment. Therefore, the example of FIG. 38 (a) is suitable when processing is performed in units of super segments, and the example of FIG. 38 (b) is suitable when processing is performed in units of TS.
  • FIG. 39 is an example of pilot information transmitted by pilot broadcasting.
  • Physical channel information defines the frequencies of three physical channels, physical channels 1, 2, and 3.
  • the frequency of the physical channel may be indicated by a start frequency to an end frequency, and since the physical channel bandwidth is determined to be 6 MHz, it may be defined by the start, end, and center frequencies. Note that the frequency position of the physical channel may be defined by overlapping some bands. In this case, the frequency bandwidth of the overlapping portion is an integral multiple of 6/14 MHz.
  • the super segment information links the super segment number and the super segment configuration.
  • Super segment type ⁇ type A (13 segments), type B (1 segment) ⁇ , number of connections, physical channel numbers ⁇ 1, 2, 3 ⁇ , central subchannel number ⁇ 0 to 41 ⁇ (13 segments for 13 segments) By indicating the value of the central segment), the super segment configuration and its frequency arrangement are determined.
  • TS information associates TS number (see Fig. 2) and super segment structure. If the super segment number, super segment type, and center subchannel number are known, the transmission segment of the TS number can be determined, and as a result, the transmission frequency arrangement can be known.
  • FIG. 40 (a) shows the physical channel information, super segment information, and TS information of FIG. 38 (a) and FIG. 40 (b).
  • the frequency arrangements of the pilot segments which are the pilot broadcasts in FIG. 38 and the pilot information transmitted in the pilot broadcasts in FIG. 39 are the same, the frequency arrangements of the pilot segments are the same in FIGS. 39.
  • a pilot segment having a frequency arrangement is selected and demodulated, whereby the super segment configuration can be recognized from the pilot information shown in FIG. 39. Therefore, when processing is performed in units of super segments shown in FIG. To a super segment configuration suitable for processing in units of TS in FIG. 38 (b), and a super segment configuration suitable for processing in units of TS in FIG. 38 (b). From the segment configuration to the super segment configuration suitable for processing in units of super segments in FIG. One even there is an effect that can be changed.
  • FIG. 41 is a block diagram showing a system configuration of digital broadcast distribution in the tenth embodiment according to the present invention.
  • Reference numeral 4101 denotes a content sending device
  • 4106 denotes a receiving device
  • 4111 denotes an audience rating information totaling device.
  • the content transmission device 4101 is a digital broadcast transmission device that transmits content as a digital broadcast.
  • a viewing information element (AudienceRating) is multiplexed and transmitted as metadata of the transmitted content.
  • a receiving device 4106 is a digital broadcast receiving device that receives a digital broadcast.
  • the viewing information element is included in the metadata of the content of the selected program, the viewing information data is transmitted to the audience rating information totaling device 4411 via the network.
  • a network connection function for connecting to a network using a wired or wireless communication network is provided.
  • the audience rating information totaling device 4111 counts the viewing information data sent from the receiving device 4106 and transmits the obtained audience rating information to the content sending device 4101.
  • the configuration of the content transmission device 4101 is the same as the configuration of the digital broadcast transmission device in FIG.
  • FIG. 42 is a block diagram showing a configuration of the receiving device 4106.
  • Reference numeral 4201 denotes a touch panel, and the operation of the digital broadcast receiving apparatus can be performed on the touch panel 4201 via the I / O 1920.
  • Reference numeral 4202 denotes a speaker, and 4203 denotes a video display unit such as a panel.
  • the speaker 4202 outputs the audio of the digital broadcast receiving device via the audio output 1911, and the video display unit 4203 displays the video of the digital broadcast receiving device via the video output 1914.
  • FIG. 43 is a block diagram illustrating a software configuration example of the reception device 4106 according to the present embodiment.
  • the control software 4300 for realizing the function of the receiving device 4106 is stored in the NVRAM 1916, the ROM 1917, or the recording medium 1931 of the receiving device 4106, and is expanded in the RAM 1918 and executed by the CPU 1922 at the time of execution.
  • the control software 4300 includes a metadata extraction unit 4301, a metadata analysis unit 4302, a program information extraction unit 4303, a viewing information data generation unit 4304, a receiver registration processing unit 4305, a receiver registration information generation unit 4306, and a receiver registration UI generation.
  • a unit 4307 and a network communication processing unit 4308 are included.
  • the metadata extraction unit 4301 acquires the metadata separated by the demux 1909 of the receiving device 4106.
  • the metadata analysis unit 4302 detects the ⁇ ProgramDescription> tag from the metadata information acquired by the metadata extraction unit 4301, and extracts “program description” in which information about the program and the audience rating is described.
  • “program description” receiver information transmission destination for registering receiver information, which is information on a receiver that transmits basic information on a program such as a program name of digital broadcasting and viewing information data Registered receiver data transmission destination information that is a URI (Uniform Resource Identifier) indicating the viewing information data, viewing information data transmission destination information that is a URI (Uniform Resource Identifier) indicating the transmission destination of the viewing information data, and the audience rating information of the program Described. Details of the metadata description will be described later.
  • the program information extraction unit 4303 acquires a program name, an identifier for identifying a program, and the like from an EIT (Event Information Table) included in the digital broadcast signal, and identifies a program being received.
  • EIT Event Information Table
  • the viewing information data generation unit 4304 identifies the program being viewed at 0 seconds per minute from the program information extraction unit 4303 and generates viewing information data for transmission to the audience rating information totaling device 4111.
  • the receiver registration processing unit 4305 detects the registered receiver data transmission destination information in the information extracted from the metadata analysis unit 4302, and when the registered flag is 0, the receiver registration data is registered receiver data.
  • the receiver registration UI generation unit 4307 is instructed to generate a receiver data transmission confirmation UI (User-Interface) that confirms to the user whether to transmit to the destination information.
  • the registered flag is reset to 0 when the power of the receiving device 4106 is turned off.
  • the receiver registration information generation unit 4306 includes a receiver that includes ID information that allows the audience rating information aggregating apparatus to uniquely identify the receiver 4106 when the user specifies that the receiver data is transmitted to the registered receiver data transmission destination information. Data is generated and output to the network communication processing unit 4308.
  • the receiver registration UI generation unit 4307 When instructed by the receiver registration processing unit 4305, the receiver registration UI generation unit 4307 generates a receiver data receiver data transmission confirmation UI and displays it on the display 4205 of the reception device 4106. Further, a normal response UI when the receiver data can be normally transmitted to the audience rating totaling apparatus 4111 and an error response UI when the transmission fails are displayed on the display 4205 of the receiving apparatus 4106.
  • the network communication processing unit 4308 transmits / receives data to / from the audience rating information totaling device 4111 connected to the network via the communication I / F 1919.
  • FIG. 44 is a block diagram showing the configuration of the audience rating information totaling apparatus 4111 according to this embodiment.
  • 4401 is a central processing unit (CPU)
  • 4402 is a RAM (Random Access ⁇ 4Memory), which is a main memory
  • 4403 is a ROM (Read Only ⁇ Memory) in which a boot program is stored
  • 4404 is a record for recording a program, data, and the like.
  • 4405 is an input / output unit (hereinafter referred to as I / O)
  • 4407 is a screen output unit for displaying a screen
  • 4408 is a system bus
  • 4409 is an I / O.
  • a keyboard that is one of the external input devices connected to the O4406, a mouse 4410 that is one of the external input devices connected to the I / O 4406, and an external display that is connected to the screen output unit 4407.
  • FIG. 45 is a diagram showing an example of metadata transmitted after being multiplexed with content.
  • Metadata 4501 is content description metadata that provides information about the program audience rating. Here, a description will be given taking as an example a case of description in XML (Extensible Markup Language).
  • the metadata 4501 is generated for each program, multiplexed with the program content, and repeatedly transmitted every predetermined time.
  • the ⁇ TVAMain> tag is a tag indicating the root element 4603 of the content description metadata.
  • the content description metadata is described from the ⁇ TVAMain> tag to the part enclosed by the ⁇ / TVAMain> tag.
  • 4503 is a data description part of content description metadata.
  • the ⁇ ProgramDescription> tag is a tag indicating that the content of the content description metadata is “program description”.
  • the receiver can determine the type of content description metadata by the ⁇ ProgramDescription> tag.
  • ⁇ UserDescription> indicating “viewer preference or content usage history description” is defined as a tag indicating the type of content.
  • program information description is provided as “program description” information
  • program audience information description is defined and described as one element in “program information description”.
  • the ⁇ ProgramInformationTable> tag is a tag indicating that this metadata has “program information description”. “Program information description” is described by a ⁇ ProgramInformation> tag.
  • the ⁇ ProgramInformation> tag has programId5808 which is an ID for uniquely identifying a program as attribute information.
  • programId5808 information for uniquely identifying the broadcaster is described. For example, a domain name such as "hitachi.com” is set.
  • the “bbb” portion of programId 5808 is set with an identifier for uniquely identifying a program within one broadcaster.
  • “ ⁇ broadcast date / time> / ⁇ content category> / ⁇ service ID> / ⁇ event ID>” is separated by “/” and configured with the broadcast date / time, content category, service ID, event ID, and the like.
  • ⁇ Broadcast date> is described in the YYMMDD format.
  • ⁇ Content category> indicates real-time broadcasting or storage broadcasting. Real-time broadcasting is described as rt, and storage broadcasting is described as fd.
  • These pieces of information are also information transmitted together with the broadcast program included in the digital broadcast signal, and information about the program being received can be acquired by the program information extraction unit 4303. Therefore, by configuring the programId 5808 as described above, the program being received can be easily associated with the acquired content description metadata.
  • ⁇ ProgramInformation> tag is an element tag as ⁇ BasicDescription> tag (program basic information description part) 4504, ⁇ ViewInformation> tag (viewing data collection information description part) 4505, ⁇ ViewRegistration> tag (registration destination information description part) 4506, ⁇ RatingInformation > Has a tag (viewing rate information description part) 4507
  • ⁇ BasicDescription> tag (program basic information description part) 4504 is a tag indicating that basic information about a program is described.
  • the program basic information description unit 4504 has a ⁇ Title> tag as an element tag.
  • the ⁇ Title> tag represents a program name, and the program name is described in a portion surrounded by the ⁇ Title> tag and the ⁇ / Title> tag.
  • ⁇ ViewInformation> tag (viewing data collection information description section) 4505 is a tag indicating that information for collecting information related to viewing is described.
  • the viewing data collection information description unit 4505 has a ⁇ ServerUri> tag as an element tag.
  • viewing information data transmission destination information which is a URI indicating the transmission destination of the viewing information data of the program is described.
  • ⁇ ViewRegistration> tag (registration destination information description part) 4506 is a tag indicating that information for registering a receiver that provides viewing information is described.
  • the registration destination information description unit 4506 has a ⁇ ServerUri> tag as an element tag.
  • receiver registration data transmission destination information which is a URI indicating a transmission destination of receiver registration data for registering a receiver that provides viewing information is described.
  • ⁇ RatingInformation> (viewing rate information description part) 4507 is a tag indicating that the rating information of the program indicated by programId5808 is described.
  • the ⁇ RatingInformation> tag describes information related to audience rating information of the program.
  • Viewing rate information description part) 4507 has ⁇ Time> tag, ⁇ Ratio> tag, etc. as element tags.
  • the ⁇ Time> tag describes the time zone used to calculate the audience rating of the program at any time. Usually, the time zone indicating the latest audience rating is described.
  • the ⁇ Ratio> tag describes the value of the audience rating (every minute audience rating) at 0 seconds per minute. Describe the numerical value in percentage display with the maximum value being 100, up to one decimal place. When there is no audience rating information, this tag is not included in the content description metadata.
  • FIG. 46 is a flowchart of a registration process for registering the receiving device 4106 as a receiver that provides viewing information. The registration process is executed only when the digital broadcast is being viewed and the receiver has not yet been registered, that is, when the value of the registered flag is 0.
  • the receiver registration processing unit 4305 determines whether the registration destination information description unit 4506 exists in the metadata 4501 by detecting ⁇ ViewRegistration> of the metadata. (Step 4601). When the receiver registration data transmission destination information is detected, the receiver registration processing unit 4305 detects the ⁇ ServerURI> tag in the registration destination information description unit 4506, and acquires “receiver registration data transmission destination information” (step S3). 4602). The receiver registration processing unit 4305 requests the receiver registration UI generation unit 4307 to generate a receiver data receiver data transmission confirmation UI, and displays it on the display 4205 (step 4603). A display example of the receiver data transmission confirmation UI is shown in FIG.
  • Reference numeral 5401 denotes a message for confirming transmission of receiver data.
  • the user selects the “Register” button 5402. If the receiver data is not transmitted, the user selects the “Cancel” button 5403.
  • the receiver registration processing unit 4305 determines which button of the receiver data transmission confirmation UI has been selected (step 4604). If the “Cancel” button 5403 is selected, the process ends.
  • the receiver registration information generating unit 4306 generates receiver data to be registered, and transmits the receiver data to the audience rating information totaling apparatus 4111 via the network communication processing unit 4308.
  • the information of the transmission destination is the receiver registration data transmission destination acquired in step 4602 (step 4605).
  • step 4606 It is determined whether a registration completion response to the receiver data transmitted to the audience rating information totaling apparatus 4111 has been received within a predetermined timeout time (step 4606).
  • the registered flag is set to 1 (step 4607).
  • the receiver registration UI generation unit 4307 When the registration completion response is received, the receiver registration UI generation unit 4307 generates a normal response UI (FIG. 54B), displays it on the display 4205, and ends the registration process (step 4608).
  • the receiver registration UI generation unit 4307 generates an error response UI (FIG. 54 (c)), displays the error response UI on the display 4205, and ends the registration process without being registered (step 4608).
  • FIG. 47 is a flowchart of viewing information data generation and transmission processing by the receiving device 4106.
  • FIG. The generation and transmission process flow is executed at 0 second per minute.
  • the viewing information data generation unit 4304 acquires the time when the process is executed. (Step 4701).
  • the service ID and event ID which are identification information of the program being viewed, are acquired from the program information extraction unit 4303. (Step 4702).
  • the viewing information data generation unit 4304 acquires metadata corresponding to the program being viewed from the metadata analysis unit 4302. At this time, the service ID and event ID acquired in step 4702 are passed as search arguments.
  • the metadata analysis unit 4302 compares the ⁇ programId> 4508 of the ⁇ ProgramInformation> tag with the argument service ID and the event ID that have been passed, and returns the requested metadata.
  • the viewing information data generation unit 4304 extracts the viewing data collection information description unit 4505 from the acquired metadata by detecting the ⁇ ViewInformation> tag, and acquires “viewing information data transmission destination information” described in the ⁇ ServerUri> tag. (Step 4703).
  • the viewing information data generation unit 4304 generates the viewing information data shown in FIG. 48 (step 4704).
  • the viewing information data generation unit 4304 transmits the generated viewing data to the viewing information data transmission destination extracted in step 4703 via the network communication processing unit 4308 (step 4705).
  • FIG. 48 is a diagram showing an example of viewing information data.
  • the viewing information data 4801 is described in XML
  • 4802 is an XML declaration.
  • ⁇ ViewInformationTable> is an element (tag) for describing a table related to viewing information of the receiving device 4106.
  • the ⁇ ViewInformationTable> tag has a ⁇ ViewInformation> tag, and a plurality of ⁇ ViewInformation> tags can be described in one ⁇ ViewInformationTable> tag.
  • the ⁇ ViewInformation> tag is an element (tag) for describing viewing information for each program.
  • ⁇ ViewInformation> tag has ⁇ programId> tag, ⁇ Time> tag, and ⁇ ReceiverId> tag.
  • the ⁇ programId> tag is a tag that describes channel information of a viewing program, and uses the programId 4508 of attribute information of the ⁇ ProgramInformation> tag in the metadata 4501 transmitted from the content transmission apparatus 4101.
  • the ⁇ Time> tag indicates the time when the viewing information data was taken. The time is described in the YYYY-MMDDThh: mm: ss format. YYYY is a 4-digit year, MM is a 2-digit month, DD is a 2-digit day, hh is a 2-digit hour, mm is a 2-digit minute, and ss is always 00.
  • the ⁇ ReceiverId> tag describes the same receiver data that uniquely identifies the receiving device 4106.
  • FIG. 49 is a diagram illustrating an example of receiver data generated and transmitted by the receiver registration information generation unit 4306.
  • a description will be given by taking an example described in XML.
  • Receiver data 4901 is described in XML, and 4902 is an XML declaration.
  • ⁇ ViewRegistrationTable> is an element (tag) for describing a table related to receiver information of the receiving device 4106.
  • the ⁇ ViewRegistrationTable> tag has a ⁇ ViewRegistration> tag.
  • the ⁇ ViewRegistration> tag is an element (tag) for describing information for uniquely identifying the receiving device 4106.
  • the ⁇ ViewRegistration> tag has a ⁇ ReceiverId> tag.
  • the ⁇ ReceiverId> tag describes information for identifying the receiving device 4106 as a position. Specifically, in the case of a mobile phone, a telephone number, an e-mail address, etc. correspond to this.
  • FIG. 50 is a diagram illustrating a software configuration example of the audience rating information totaling device 4111.
  • Control software that realizes the function of the audience rating information totaling apparatus 4111 is stored in the RAM 4402, the ROM 4403, or the recording medium 4404 of the audience rating information totaling apparatus 4111, and is expanded in the RAM 4402 and executed by the CPU 4401 at the time of execution.
  • 50 includes a viewing information data reception processing unit 5001, a receiver data reception processing unit 5002, an audience rating information calculation unit 5003, and an audience rating information provision unit 5004.
  • the flow processed by the viewing information data reception processing unit 5001 will be described with reference to FIG.
  • Viewing information report data reception processing unit 5001 receives viewing information data 4801 from network communication processing unit 4308 (step 5501).
  • ⁇ ProgramId> information, ⁇ Time> information, and ⁇ ReceiverId> information are extracted from the viewing information data 4801 (step 5502). It is determined whether the ⁇ ReceiverId> information extracted in step 5502 includes ⁇ ReceiverId> information already registered as receiver data (step 5503). It is determined whether or not ⁇ ReceiverId> information has already been registered and viewing information data in which a combination of ⁇ programId> information, ⁇ Time> information, and ⁇ ReceiverId> information is duplicated is already stored (step 5504). .
  • the received viewing information data is stored in the storage medium 4404 (step 5505).
  • the received viewing information data is discarded (step 5506).
  • the receiver data reception processing unit 5002 receives the receiver data 4901 from the network communication processing unit 4308 (step 5601). ⁇ ReceiverId> information is extracted from the receiver data 4901 (step 5602). It is determined whether or not the viewing information data in which the ⁇ ReceiverId> information is duplicated is already stored (5603). If there is no overlap, that is, new receiver data, the received receiver data is stored in the storage medium 4404 (step 5604). If duplicate receiver data has already been stored, the received receiver data is discarded (step 5605). When the receiver data is stored, a normal response is transmitted, and when it is discarded, an error response is transmitted to the receiver via the network (step 5606).
  • the flow processed by the audience rating information calculation unit 5003 will be described with reference to FIG.
  • the audience rating information calculation unit 5003 waits until a predetermined timing and executes processing.
  • the predetermined timing may be changed to a 1-minute period at which the time is 00 seconds as a minimum unit, and may be changed to a 5-minute period or a 10-minute period as necessary.
  • a case of a 5-minute cycle will be described as an example.
  • the audience rating calculation timing at which the time is 00 seconds in a 5-minute cycle is determined (step 5701).
  • the time 1 minute before this timing is 00 seconds.
  • the number of viewing information data with ⁇ Time> information is counted for each ⁇ programId> information as the numerator, and the receiver data
  • the number of ⁇ ReceiverId> registered from 1 is used as a denominator, and a numerical value in percentage display with a maximum value of 100 is calculated as a viewing rate of the program to one decimal place (step 5702).
  • This audience rating is transmitted to the content transmission device 4401 as audience rating aggregate data (step 5703).
  • the audience rating information providing unit 5004 converts the audience rating aggregated data calculated by the audience rating information calculating unit 5003 into the same format as the metadata 4507, and transmits it to the content transmission apparatus 4101 via the network communication processing unit 4308.
  • FIG. 58 shows an example when the data to be transmitted by the audience rating information providing unit 5004 is described in XML.
  • the audience rating total data 5801 is described in XML, and 5802 is an XML declaration.
  • the audience rating data 5803, 5804, and 5805 for each program described by the ⁇ ProgramInformation> tag has different programId attribute information, and can be uniquely specified for each program.
  • the ⁇ Time> information in the ⁇ RatingInformation> information is the same because all the audience ratings at the same timing are totaled.
  • the ⁇ Ratio> information describes the audience rating for each ⁇ programId> information.
  • the content transmission apparatus that has received the audience rating data can use the audience rating data 5803, 5804, and 5805 as metadata 4507 as they are.
  • the audience rating information totaling apparatus can obtain the viewing information data from the receiver almost in real time during the program broadcast. Moreover, the acquired audience rating information is totaled and provided to the content transmission apparatus as needed. As a result, a broadcaster that sends out content can obtain the viewing rate of the broadcasted program almost in real time.
  • the receiver 4106 receives audience rating information of a program distributed using metadata and presents it to the user will be described.
  • FIG. 51 is a diagram illustrating a software configuration example of the reception device 4106 according to the present embodiment.
  • the audience rating information extraction unit 5101 extracts ⁇ RatingInformation> information 4507 of the metadata 4501 extracted from the metadata analysis unit 4302.
  • FIG. 52 is a diagram showing a processing flow for obtaining audience rating information from the metadata 4501 and presenting it to the user.
  • the program information extraction unit 4303 acquires the currently viewed program information, and the audience rating information extraction unit 5101 extracts ⁇ Ratio> information from the metadata 4507 (step 5201).
  • the audience rating information of ⁇ Ratio> is displayed in the upper right part of the display 4205 of the receiving device 4106 (step 5202).
  • FIG. 53 is a diagram showing a display example of audience rating information displayed on the display 4205 of the reception device 4106. At the same time as the program, audience rating information is displayed in the upper right part of the screen.
  • the audience rating information totaling apparatus can obtain the viewing information data from the receiver almost in real time during the program broadcast. Moreover, the acquired audience rating information is totaled and provided to the content transmission apparatus as needed. As a result, a broadcaster that sends out content can obtain the viewing rate of the broadcasted program almost in real time. Further, the content transmission device transmits the acquired audience rating information as content metadata by digital broadcast waves. Thereby, the user can know the audience rating of the program being viewed in almost real time.
  • this invention is not limited to an above-described Example, Various modifications are included.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
  • Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
  • Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor.
  • Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
  • a recording device such as a memory, a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.
  • control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.
  • Convolutional encoding unit 606 ... Carrier modulation unit 607 ... Bit interleaving unit 608 ... Mapping unit 609 ... Output 701 ... Input 702 ... Pilot signal configuration unit 703 ... TMCC (Transmission and Multiplexing Configuration Control) signal configuration unit 704 ... AC (Auxiliary Channel) signal configuration unit 705 ... OFDM frame configuration unit 706 ... Output 1901 ... Antenna 19 2 ... Channel selection unit 1903 ... Orthogonal demodulation unit 1904 ... Fast Fourier transform (FFT) unit 1905 ... Demodulation decoding unit 1906 ... Synchronous reproduction unit 1907 ... Frame extraction unit 1908 ... TMCC decoding unit 1909 ... Demax unit 1910 ...
  • FFT Fast Fourier transform
  • CAS Consumer Access System 1931 ... Recording medium 2101 ... Input 2102 ... Carrier demodulation unit 2103 ... Deinterleaving unit 2104 ... Demapping unit 2105 ... Bit deinterleaving unit 2106 ... Depuncture unit 2107 ... Viterbi decoding unit 2108 ... Byte deinterleaving unit 2109 ... Energy despreading unit 2110 ... TS reproduction unit 2111 ... RS (Reed-Solomon) decoding unit 2112 ... Output 2121 ... Hierarchy division unit 2122 ... Hierarchy synthesis unit 2201 ... Input 2202 ... Carrier demodulation unit 2203 ... Deinterleaving unit 2204 ...
  • Demapping unit 2205 Bit deinterleave Unit 2206 Depuncture unit 2207 Viterbi decoding unit 2208 Byte deinterleaving unit 2209 Energy despreading unit 2210 TS reproduction unit 2211 RS (Reed-Solomon) decoding unit 2212 Output 4 111 ... audience rating information totaling device 4301 ... metadata extraction unit 4302 ... metadata analysis unit 4303 ... program information extraction unit 4304 ... viewing information data generation unit 4305 ... receiver registration processing unit 4306 ... receiver registration information generation unit 4307 ... reception Machine registration UI generation unit 4308... Network communication processing unit 4501... Metadata 4504 distributed from the content sending device. Metadata element 4505 describing basic information of the program.
  • Metadata element 4506 describing viewing information data transmission destination information.
  • Metadata element 4507 describing registered receiver data transmission destination information ...
  • Metadata element 4801 describing audience rating information of program ... Viewing information data 4803 including viewing information of program ... Viewing information 4901 for each program ...
  • Receiver information Including receiver data 4903 ...
  • Hearing information data receiver 5002 ...
  • receiver data receiver 5003 ... ratings information calculation unit 5101 ... viewership processor

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Graphics (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La technique antérieure présente un désavantage en ce qu'il est impossible de collecter, en temps réel, des données d'informations de visualisation, qui doivent être utilisées pour calculer des taux d'audience de programmes de diffusion numérique, et de distribuer, en temps réel, les données de taux d'audience, qui ont été calculées à partir d'un résultat de la collecte, à des appareils récepteurs de diffusion numérique. A la lumière de ce problème, des données d'informations de visualisation sont transmises en temps réel et des données de taux d'audience calculées sont distribuées en temps réel. Les taux d'audience de programmes de diffusion numérique peuvent être vérifiés en temps réel.
PCT/JP2011/006843 2011-12-07 2011-12-07 Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi WO2013084263A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/006843 WO2013084263A1 (fr) 2011-12-07 2011-12-07 Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/006843 WO2013084263A1 (fr) 2011-12-07 2011-12-07 Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi

Publications (1)

Publication Number Publication Date
WO2013084263A1 true WO2013084263A1 (fr) 2013-06-13

Family

ID=48573675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/006843 WO2013084263A1 (fr) 2011-12-07 2011-12-07 Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi

Country Status (1)

Country Link
WO (1) WO2013084263A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104394433A (zh) * 2014-11-27 2015-03-04 北京国双科技有限公司 检测电视频道中多媒体文件的播放次数的方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004274394A (ja) * 2003-03-07 2004-09-30 Dainippon Printing Co Ltd 携帯端末受信向け放送の視聴情報収集方法
JP2006222574A (ja) * 2005-02-08 2006-08-24 Mitsubishi Electric Corp デジタル放送受信端末
WO2007097387A1 (fr) * 2006-02-22 2007-08-30 Access Co., Ltd. Systeme de diffusion de programme et systeme de distribution du contenu d'un programme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004274394A (ja) * 2003-03-07 2004-09-30 Dainippon Printing Co Ltd 携帯端末受信向け放送の視聴情報収集方法
JP2006222574A (ja) * 2005-02-08 2006-08-24 Mitsubishi Electric Corp デジタル放送受信端末
WO2007097387A1 (fr) * 2006-02-22 2007-08-30 Access Co., Ltd. Systeme de diffusion de programme et systeme de distribution du contenu d'un programme

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104394433A (zh) * 2014-11-27 2015-03-04 北京国双科技有限公司 检测电视频道中多媒体文件的播放次数的方法和装置
CN104394433B (zh) * 2014-11-27 2019-04-12 北京国双科技有限公司 检测电视频道中多媒体文件的播放次数的方法和装置

Similar Documents

Publication Publication Date Title
US11696000B2 (en) Method for transmitting broadcast signals and method for receiving broadcast signals
JP5733769B2 (ja) コンテンツ受信装置、コンテンツ受信方法、及び、デジタル放送送受信システム
US9736547B2 (en) Method for mapping signaling information to announcement information and broadcast receiver
JP4631235B2 (ja) デジタル放送送信方法、デジタル放送送信装置、並びに、デジタル放送受信装置
JP5071544B2 (ja) デジタル放送送信方法、デジタル放送送信装置並びにデジタル放送受信装置
US8347343B2 (en) Method for receiving a broadcast signal
US20160352793A1 (en) Apparatus for processing a hybrid broadcast service, and method for processing a hybrid broadcast service
KR101769381B1 (ko) 방송 신호 송수신 방법 및 그를 이용한 방송 수신 장치
EP3923589A1 (fr) Dispositif et procédé d'émission de signal de diffusion et dispositif et procédé de réception de signal de diffusion
JP6360184B2 (ja) 放送信号送信装置、放送信号受信装置、放送信号送信方法、及び放送信号受信方法
US8185925B2 (en) Digital broadcasting system and method of processing data in the digital broadcasting system
US20230353266A1 (en) Broadcast receiving apparatus and method of processing transmission waves
WO2012042746A1 (fr) Système d'émission/réception de diffusion numérique, et appareil d'envoi de contenu et appareil de réception
JP2012100179A (ja) デジタル放送の送信装置及び送信方法、並びに、デジタル放送の受信装置及び受信方法
WO2013084263A1 (fr) Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi
JP2013157680A (ja) 受信装置およびデジタル放送送受信システム
WO2013124900A1 (fr) Appareil émetteur, appareil récepteur et procédé d'émission/réception
WO2013084262A1 (fr) Système d'émission/réception de diffusion numérique, appareil récepteur, et appareil d'envoi de contenus
JP2014033331A (ja) 受信装置および送受信システム
US20170134809A1 (en) Broadcasting signal transmission apparatus, broadcasting signal reception apparatus, broadcasting signal transmission method, and broadcasting signal reception method
JP2012100178A (ja) デジタル放送の送信装置及び送信方法、並びに、デジタル放送の受信装置及び受信方法
JP2012074921A (ja) デジタル放送の送信装置および送信方法、並びに、デジタル放送の受信装置および受信方法
JP2013131876A (ja) デジタル放送送信装置及びデジタル放送受信装置
JP2013128231A (ja) デジタル放送送受信システム、デジタル放送送信装置、及びデジタル放送受信装置
KR20070070953A (ko) 프로그램 안내 정보 서비스를 위한 방법 및 이동형 방송 수신기

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11877146

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11877146

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP