JP2009094972A - Re-distribution device and receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce processing burdens when, for example, a program of terrestrial digital television and data broadcast are re-distributed. <P>SOLUTION: This re-distribution device (1) includes: receiving means (10, 20) for receiving terrestrial digital television broadcast by one or more physical channels; and a recording means (30) for performing stream recording of a desired program included in the terrestrial digital television broadcast to be received including one segment part for one segment broadcast among 13 segments constituting a physical channel corresponding to the desired program. Then, the re-distribution device is further provided with: a separation means (91) for separating one segment part from the desired program to be recorded; and a re-distribution means (90) for re-distributing the one segment part to be separated to a receiver via an IP network as a video format adopted to the one segment broadcast. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a redistribution apparatus for redistributing a terrestrial digital television broadcast program and data broadcast, and a technical field related to those reception apparatuses.

  In this type of redistribution device, when redistributing an analog broadcast program, there is a technique for redistributing by changing the resolution and bit rate of the video according to the communication speed of the network and the processing capability of the receiving device. For example, in Patent Document 1, an AV (Audio Visual) server includes a TV tuner for selecting a TV (Television) broadcast station and receiving an analog broadcast signal, and is selected by the TV tuner under the control of an AV client device. In addition to receiving the broadcast analog broadcast signal, the received broadcast signal is encoded into an image compression method suitable for distribution by an MPEG (Moving Picture Experts Group) encoder or the like, and the encoded digital data is transmitted to the AV client device via the network. A technique for transmitting is disclosed.

JP 2005-204273 A

  However, for example, the technology disclosed in the above-mentioned Patent Document 1, or the technology related to location free (registered trademark of Sony Corporation) and SlingPlayer (registered trademark of Sling Media, Inc.), format conversion processing such as an MPEG encoder is performed. is necessary. Even if these redistribution devices are realized by digital terrestrial television broadcasting instead of analog broadcasting, if a similar format conversion process is performed, it is a load on the redistribution device. The burden is particularly severe if you intend to redistribute high-definition broadcasting.

  The present invention has been made in view of, for example, the above-described problems, and provides a redistribution device and a receiving device thereof that can reduce processing load when redistributing a terrestrial digital television broadcast program or data broadcast. This is the issue.

  In order to solve the above-described problem, the redistribution apparatus of the present invention receives a terrestrial digital television broadcast on one or a plurality of physical channels and a desired program included in the received terrestrial digital television broadcast. A recording means for recording a stream including at least one segment for one segment out of 13 segments constituting a physical channel corresponding to the desired program, and the one segment portion from the desired program to be recorded Separation means for separating, and redistribution means for redistributing the separated one segment portion to a receiving apparatus via an IP (Internet Protocol) network in the video format adopted in the one segment broadcast.

  In order to solve the above-described problem, a receiving apparatus according to the present invention receives a 1-segment portion for 1-segment broadcasting in digital terrestrial television broadcasting in order to receive a program or the like redistributed from the re-distributing apparatus. One segment for one segment of the program stream-recorded by one receiving means and the redistribution device, and redistributed via the IP network in the video format adopted in the one segment broadcast A second receiving means for receiving an object; a decoding means for decoding one segment portion received by each of the first receiving means and the second receiving means; and from the second receiving means to the decoding means, The output rate from the second receiving means is the same as the output rate from the first receiving means when outputting one segment portion. And an adjustment means for performing the buffering of one segment portion that.

  The operation and other advantages of the present invention will become apparent from the best mode for carrying out the invention described below.

  Hereinafter, a redistribution apparatus and a reception apparatus according to an embodiment of the present invention as the best mode for carrying out the invention will be described in order.

  In order to solve the above-described problem, the redistribution apparatus according to the present embodiment receives a terrestrial digital television broadcast on one or a plurality of physical channels, and a request included in the received terrestrial digital television broadcast. Recording means for recording a stream including at least one segment portion for one segment out of 13 segments constituting a physical channel corresponding to the desired program; and Separating means for separating the segment portion, and redistributing means for redistributing the separated one segment portion to the receiving device via the IP network in the video format adopted in the one segment broadcast.

  According to the redistribution apparatus according to the present embodiment, first, the terrestrial digital television broadcast is received by the receiving unit through one or a plurality of physical channels. The receiving means is a digital tuner capable of receiving UHF band broadcast waves used in terrestrial digital television broadcasting, but can also receive BS digital and 110 degree CS digital broadcasting in addition to or instead of terrestrial digital television broadcasting. There may be. The predetermined physical channel is, for example, any one of 13ch to 52ch (including 53 to 62ch until 2012) included in the UHF band.

  At this time, in response to an instruction from the user or automatically, a desired program included in the received digital terrestrial television broadcast is a one-segment broadcast out of 13 segments constituting a physical channel corresponding to the desired program. For example, the recording unit includes at least one segment portion for recording. That is, the transport stream is recorded as it is. Here, the recording means is, for example, an optical recording means using an optical disc as a recording medium, or a magnetic recording means such as a hard disk drive.

  For example, when a reproduction request for reproducing a desired program is received from the receiving apparatus, a desired segment recorded is not a 12-segment portion for so-called full-segment broadcasting, but for one-segment broadcasting. The one segment portion is separated by the separating means.

  One segment portion separated in this way is a target of redistribution. Since this 1-segment portion has a relatively low data rate, it is redistributed by the redistribution means to the receiving device via the IP network with the video format (for example, H.264) adopted in 1-segment broadcasting. .

  As described above, the redistribution device according to the present invention records in advance a stream including at least one segment part for one segment broadcasting, and does not convert the video format by separating the stream during redistribution. To the receiving device via the IP network.

  Therefore, the output rate can be suppressed as compared with the case of redistributing the 12 segment portion, and the processing load when redistributing a terrestrial digital television broadcast program or data broadcast can be reduced.

  In one aspect of the redistribution apparatus according to the present embodiment, the receiving unit further receives a data broadcast accompanying the terrestrial digital television broadcast, and the recording unit further records the received data broadcast, A data broadcast search database for searching the recorded data broadcast, and extracting means for extracting information stored in the data broadcast search database from the recorded data broadcast according to a predetermined table structure; Data broadcast search means for returning a search result in the data broadcast search database to the receiving device via the IP network is further provided.

  According to this aspect, the data broadcast accompanying the terrestrial digital television broadcast is further received by the receiving means and recorded by the recording means. The recording means includes a data broadcast search database for searching for data broadcasts recorded in this way. Information to be stored in the data broadcast search database is extracted by extraction means from a data broadcast recorded according to a predetermined table structure (for example, a structure including fields including “title”, “category”, etc.) of the data broadcast. The In the data broadcast search database, various data broadcast information recorded in the recording means is accumulated. Such a data broadcast search database is constructed as a relational database management system, for example, and search conditions specified by the receiving device are described in a database language such as SQL. Then, the search result in the data broadcast search database is described in, for example, HTML, and returned to the receiving device by the data broadcast search means via the IP network. In this way, data broadcasts such as past program guide information and various information related to recorded content are recorded and can be searched.

  Thus, in the aspect in which the data broadcast is recorded, the data broadcast search database stores the recorded data broadcast in association with the stream recorded program according to the structure of the predetermined table. A program database and a program index database for extracting and storing information displayed as a search index in the receiving device from a predetermined field of the program database may be included.

  According to this aspect, the data broadcast search database includes the following program database and program index database. Here, the program database is a database for storing the recorded data broadcast in association with the stream-recorded program in accordance with a predetermined table structure. That is, various information included in the data broadcast corresponding to each program is shaped in a form suitable for search. The program index database is a database for extracting and storing information listed as a search index in the receiving device from a predetermined field of the program database. Thus, the user can select or search for a desired data broadcast while referring to the search index in the receiving device.

  In another aspect of the redistribution device according to the present embodiment, the redistribution device and the reception device belong to the same LAN (Local Area Network), and the local IP assigned to the redistribution device in the LAN. Symbol creation means for creating a symbol uniquely associated with the address, and display means for displaying the created symbol on the receiving apparatus are further provided.

  According to this aspect, the symbol (for example, QR code) uniquely associated with the local IP address assigned to the redistribution device in the LAN is created by the symbol creating means including the microprocessor and Displayed on the receiving device by a simple display means. Since this receiving device belongs to the same LAN as the redistribution device, the redistribution device can be accessed via the LAN based on a local IP address obtained by image analysis of this symbol.

  Alternatively, in another aspect of the redistribution device according to the present embodiment, a management server for managing the global IP address dynamically allocated to the redistribution device in the redistribution device, the receiving device, and the Internet, Symbol creation means for creating a symbol that is connectable to the Internet and that is uniquely associated with the global IP address that is fixedly assigned to the management server in the Internet and the identification information of the redistribution device. And a display means for displaying the generated symbol on the receiving device.

  According to this aspect, the symbol that is uniquely associated with the global IP address that is fixedly assigned to the management server in the Internet and the information that includes the identification information of the redistribution device is created by the symbol creating means, It is displayed on the receiving device by such display means. The receiving device first accesses the management server via the Internet based on the global IP address of the management server obtained by image analysis of the symbol. Then, by making an inquiry using the identification information of the redistribution device, it is possible to identify the redistribution device among several managed global IP addresses. Based on the global IP address thus obtained, the receiving device can access the redistribution device via the Internet. Note that a global IP address is “fixedly assigned” means that the frequency of assignment is low (that is, there is less change) than when “dynamically assigned” by a DHCP (Dynamic Host Configuration Protocol) server, for example. It is not necessary until the global IP address does not change forever.

  A receiving apparatus according to the present embodiment includes a first receiving unit that receives a one-segment portion for one-segment broadcasting in terrestrial digital television broadcasting in order to receive a program or the like redistributed from the re-distributing apparatus; Receiving a one-segment part for one-segment broadcasting out of a program stream-recorded by the re-distribution device, which is re-distributed via the IP network in the video format adopted in the one-segment broadcasting. 2 receiving means; decoding means for decoding together one segment portion received by each of the first receiving means and the second receiving means; and outputting the one segment portion from the second receiving means to the decoding means 1 segment output from the second receiving means so as to make the output rate in the same case as that from the first receiving means And an adjustment means for performing partial buffering.

  According to this receiving apparatus aspect, the 1-segment part for 1-segment broadcasting is received by the 1st receiving means among terrestrial digital television broadcasting. In parallel with this, one segment portion redistributed by the redistribution device is received by the second receiving means. The one segment portion received by each of the first receiving means and the second receiving means is decoded by the common decoding means. At this time, the output rate when the one segment portion is output from the second receiving means to the decoding means is considered to be higher than that from the first receiving means. Therefore, the buffering of the one segment portion output from the second receiving means is performed by the adjusting means having a buffer memory, for example. If the two output rates are the same, the decoding means can be shared. Note that “the same” output rate here is not limited to being completely the same, and a slight margin may be allowed.

  As described above, according to the redistribution apparatus of the present embodiment, since the reception unit, the recording unit, the separation unit, and the redistribution unit are provided, a digital terrestrial television broadcast program and data broadcast can be replayed. It is possible to reduce the processing load at the time of distribution. Furthermore, according to the receiving apparatus of the present embodiment, it is possible to receive programs and data broadcasts redistributed by the redistribution apparatus with a relatively easy configuration.

  The operation and other advantages of the present embodiment will be clarified from the examples described below.

  Embodiments of the present invention will be described below with reference to the drawings.

(1-1) Basic Configuration of Redistribution Device and Receiving Device According to Embodiment FIG. 1 is a block diagram illustrating a basic configuration of a redistribution device 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the redistribution device 1 according to the embodiment includes constituent elements described in detail below, and records the content of digital terrestrial television broadcast received by the receiving antenna 10 in the main storage device 30. Is redistributed to the receiving apparatus 210 via the IP network 12 by the one-segment redistribution unit 90. The provisions relating to digital terrestrial broadcasting have been established by the Association of Radio Industries and Businesses (ARIB).

  The receiving antenna 10 receives a TS (Transport Stream) of digital terrestrial television broadcasting transmitted from a neighboring base station 11. In the TS, a television broadcast of a plurality of channels composed of encoded video data and audio data and a data broadcast accompanying the television broadcast are multiplexed. Note that encoding schemes employed in 12-segment broadcasting and 1-segment broadcasting are, for example, MPEG2 and H.264, respectively. H.264.

  The digital broadcast tuner module 20 uses the receiving antenna 10 to selectively receive a terrestrial digital television broadcast TS.

  The main storage device 30 is, for example, a semiconductor memory, and records video / program information 31. Specifically, the main storage device 30 records the TS that is selectively received by the digital broadcast tuner module 20 as it is. At this time, it is desirable to record all 13 segments in order to achieve both the re-distribution of the 1-segment portion via the IP network 12 and the viewing on the monitor 220 of the 12-segment portion. In addition, the main storage device 30 further records program information (for example, broadcast date and time, program title, etc.) obtained by referring to the data being broadcast. The use mode of the video / program information 31 will be described later with reference to FIG.

  The control unit 40 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) storing programs executed by the CPU and various control data, and a RAM (Random Access Memory) used by the CPU for work. The control software for recording processing in the main storage device 30 and the control software for redistribution processing by the one-segment redistribution unit 90 are read and executed in accordance with user input by operation or the like.

  The one-segment separation unit 91 separates one segment portion of the content requested to be reproduced from the TSs stream-recorded in the main storage device 30 and outputs the TS packet to the one-segment redistribution unit 90.

  The one-segment redistribution unit 90 generates an IP packet by adding a UDP header and an IP header to the TS packet input by the one-segment separation unit 91, such as a TS-IP converter, and generates the IP packet. Redistribute to 12. The IP network 12 is, for example, the Internet or a LAN network, and the communication protocol is, for example, IPv4 or IPv6.

  The network communication unit 70 is connected to the control unit 40, the main storage device 30 and the like via a bus, and is connected to the receiving device 210 via the IP network 12. The network communication unit 70 receives a request based on, for example, HTTP (HyperText Transfer Protocol), creates browsing data that can be browsed by the browser of the receiving apparatus 210 such as HTML, and returns the data to the receiving apparatus 21 as a response. For example, the network communication unit 70 controls all or part of the playback operation / recording reservation function and the data broadcast search function. Here, regarding the playback operation / recording reservation function, the network communication unit 70 performs a playback request from the receiving device 210 (for example, a request indicating identification information of content to be played back) or a recording reservation request (for example, according to an electronic program guide). The request indicating the designated recording desired content) is received via the IP network 12. Then, in response to the playback request, the control unit 40 sets the one segment separation unit 91 and the one segment redistribution unit 90 so as to redistribute the one segment portion of the desired content to the receiving device 210 via the IP network 12. Control. Alternatively, the control unit 40 stream-records content corresponding to the recording reservation request in the main storage device 30. As for the data broadcast search function, the network communication unit 70 receives a search request (for example, a request indicating a search keyword) from the receiving device 210 via the IP network 12. Here, the contents of the digital data and the index information are recorded in the main storage device 30 in, for example, a relational database format, and the control unit 40 searches from there and returns the search result to the network communication unit 70. Details will be described later with reference to FIG.

  The 12-segment decoding unit 60 is a plurality of pieces of information multiplexed in the 12-segment (ie, full-segment) portion of the TS stream-recorded in the main storage device 30 or the TS acquired by the digital broadcast tuner module 20. (Video, audio, data carousel, etc.) are separated and their output terminals are provided. That is, the 12-segment decoder 60 selects and decodes the 12-segment packet. A configuration in which a packet of one segment is ignored may be adopted.

  The monitor 220 is, for example, a plasma display, a liquid crystal television, or the like, and is a display device for viewing the currently broadcasted or recorded content decoded by the 12 segment decoding unit 60. In addition, the monitor 220 includes an audio output unit based on the audio signal.

  As described above, the redistribution device 1 according to the embodiment records the content of the digital terrestrial television broadcast received by the receiving antenna 10 in the main storage device 30, and one segment separated by the one segment separation unit 91 among them. The part is redistributed to the receiving apparatus 210 via the IP network 12 by the one-segment redistribution unit 90 without being re-encoded by an MPEG encoder or the like. At this time, since 13 segments to be digitally broadcast are recorded, one segment portion can be used for redistribution as it is, thereby reducing the load and cost of re-encoding processing in the redistribution apparatus 1. Then, even if a family is watching a program that is currently being broadcast or a recorded program at home, one segment of another recorded program is redistributed to the IP network 12 and is simultaneously viewed by the receiving device 210 in another room. It can be very convenient.

  Note that the receiving apparatus 210 that receives one segment portion of the content to be redistributed is configured as shown in FIG.

  FIG. 2 is a block diagram showing a basic configuration of the receiving apparatus 210 according to the embodiment of the present invention.

  As shown in FIG. 2, the receiving apparatus 210 according to the embodiment of the present invention can cope with stream input from the IP network 12 in addition to stream input from a one-segment broadcast wave received via the receiving antenna 2120. Composed. Specifically, the receiving apparatus 210 includes a control signal input unit 215, a monitor unit 214, a network communication unit 211, a one-segment broadcast tuner unit 212, and a one-segment decoding unit.

  The 1-segment broadcast tuner unit 212 is a digital tuner for 1-segment broadcast provided in a terminal having a one-segment broadcast reception function like a recent mobile phone, and selectively receives 1-segment broadcast.

  The network communication unit 211 includes, for example, packet communication and a wireless LAN function, and transmits a reproduction request and a recording reservation request from the control signal input unit 215 to the redistribution device 1 via the IP network 12. On the other hand, one segment portion of the content redistributed from the redistribution device 1 is received via the IP network 12 and output to the one segment decoding unit 213. Considering that this output is input to the 1-segment broadcast tuner unit 212 and the 1-segment decode unit 213 shared with the 1-segment broadcast tuner unit 212, for example, a buffer memory is further provided, and the output rate is set to be the same level as the 1-segment broadcast tuner unit 212 Adjustments are preferably made.

  The 1-segment decoding unit 213 performs OFDM demodulation and error correction on the selectively received 1-segment broadcast, and restores the same TS packet as that transmitted by the base station 11. In addition to video and audio, TS packets contain data information such as subtitles and program information. The video and audio packets and data broadcast packets are sorted, and video and audio signals are decoded from the video and audio packets, respectively. To do. The decoded video signal and the subtitle or data broadcast image are superimposed and sent to the monitor unit 214 together with the audio signal.

  The monitor unit 214 is, for example, a liquid crystal display, and is a display device that displays content including the above-described video and data broadcast images. In addition, an audio output unit may be provided based on the audio signal. Note that an HTML browser or a dedicated application is used for viewing / operation on the monitor unit 214.

  The control signal input unit 215 includes, for example, buttons with “0” to “9”, “#”, and “*” and a cross button that can be used to specify the vertical and horizontal directions. The recording reservation request can be input by the user. A user input is converted into an electrical signal by a piezoelectric element or the like and output to the network communication unit 211.

  As described above, the receiving device 210 according to the present embodiment includes not only the one-segment broadcast tuner unit 212 but also the network communication unit 211, so that not only the one-segment broadcast currently being broadcast but also the redistribution device 1 You can also watch content recorded on At this time, according to a receiving device having both a one-segment broadcast receiving function and an IP network connection function as in the case of a recent mobile phone, the necessity for adding a function hardly occurs, so that it is very convenient in practice.

(1-2) Regarding Database of Redistribution Device According to Embodiment Next, a more detailed configuration of the database recorded in the main storage device 30 of the redistribution device 1 according to the embodiment and a usage mode thereof will be described with reference to FIG. And it demonstrates using FIG. Here, FIG. 3 is a block diagram illustrating a database of the redistribution device 1 according to the embodiment. FIG. 4 is a schematic diagram illustrating how the database of the redistribution device 1 according to the embodiment is operated from the reception device 210.

  As shown in FIG. 3, the main storage device 30 stores a data broadcast search database 32 in addition to the video / program information 31, and further includes a database extraction / creation unit 33 that bridges the two.

  The database extraction and creation unit 33 extracts browsing data and its search index from the data broadcast content, and stores them in the program database 322 and the program index database 321 of the data broadcast search database 32, respectively.

  The data broadcast search database 32 includes a program database 322 and a program index database 321. The program database 322 includes a data broadcast title, broadcast date and time, corresponding program information, a category to which the program belongs (for example, a category such as news, weather forecast, program information, and stock price), a text, an image, and the like for each program. Store. The program index database 321 stores a category list for displaying a list of data broadcasting categories stored in the program database 322, a title list for displaying a list of titles, and the like, and a program database which is a main body of data. A pointer to 322 is also held.

  As a result, as shown in FIG. 4, a list of categories and titles stored in the program index database 321 is displayed on the WEB browser or the dedicated browser of the receiving device 210 via the network communication unit 70 and the IP network 12. The Then, it is possible to search and browse data broadcasts based on categories and titles. For example, it is very convenient because it is possible to browse program information related to the program being viewed, or browse the latest news collectively.

(1-3) Access to Redistribution Device 1 Using QR Code Hereinafter, a procedure for using a QR code for access to the redistribution device 1 according to the embodiment will be described. The procedure differs depending on whether the IP network 12 serving as an access route is a LAN or the Internet. Therefore, both paths will be described individually with reference to FIGS.

  FIG. 5 is a schematic diagram conceptually showing a procedure when a QR code is used for access to the redistribution apparatus 1 according to the embodiment (via a LAN (Local Area Network) 121).

  As shown in FIG. 5, prior to the reception device 210 accessing the redistribution device 1 via the LAN 121, the initial setting is performed in the following procedure. First, the QR code generated by the control unit 40 based on the local IP address of the redistribution device 1 in the LAN 121 is displayed on the monitor 220 directly connected to the redistribution device 1 (step S11). The receiving device 210 is provided with a general QR code reader composed of an imaging device and an image analysis device, reads the displayed QR code, and redistributes it in the LAN 121 from a predetermined correspondence between images and numbers. The local IP address of the device 1 is specified. Based on this, the receiving device 210 accesses the redistribution device 1 via the LAN 121 (step S12). Information including the local IP address of the redistribution device 1 is registered in the reception device 210 (step S13). If the state of the network connection is not changed, the operations from the above steps S11 to S13 are not necessary for the next and subsequent accesses.

  Next, as shown in FIG. 5, normal viewing and the like are performed according to the following procedure. That is, by starting a WEB browser or a dedicated application provided in the receiving apparatus 210 and transmitting a reproduction request to the redistributing apparatus 1 accessed based on the local IP address that is initially set as described above, the redistributing apparatus The user can perform operations such as viewing the desired content recorded in 1 (step S14). In addition, the recording reservation list information transmitted from the redistribution device 1 can be confirmed on the monitor unit 214 of the receiving device 210, or the recording reservation request can be set by transmitting a recording reservation request to the redistribution device 1. It is possible (step S15).

  FIG. 6 is a schematic diagram conceptually illustrating a procedure when a QR code is used for access to the redistribution apparatus 1 according to the embodiment (example of connection via the Internet 121).

  As shown in FIG. 6, when the receiving device 210 accesses the redistribution device 1 via the Internet 122, the redistribution device 1 is unique to the redistribution device 1 on the Internet 122 in order to open the redistribution device 1 to the Internet 122. A global IP address must be assigned. Here, a general user rarely owns a global IP address. Normally, each time the redistribution apparatus 1 connects to the Internet 122, a global IP address is dynamically assigned by a DHCP (Dynamic Host Configuration Protocol) server. It is done. The receiving device 210 can directly access via the Internet 122 based on the global IP address dynamically assigned to the redistribution device 1 in this way, but the receiving device 210 side has the global IP address of the redistribution device 1. Work to cope with changes will occur. Therefore, an access method using the IP address management server 14 having a fixed global IP address as an intermediary will be described.

  As shown in FIG. 6, prior to the reception device 210 accessing the redistribution device 1 via the Internet 122, the initial setting is performed in the following procedure. First, the user registers the redistribution apparatus 1 as a distribution server in the IP address management server 14 on the Internet 122 while confirming on the setting screen displayed on the monitor 220 (step S21). Specifically, the latest identification among the fixed identification information (for example, host name) of the redistribution device 1 and the global IP address dynamically assigned to the redistribution device 1 is registered. It is preferable that the management information related to the redistribution device 1 in the IP address management server 14 is sequentially updated every time the global IP address of the redistribution device 1 is dynamically assigned or periodically. In the monitor 220 directly connected to the redistribution device 1, the QR code generated by the control unit 40 based on the global IP address of the IP address management server 14 and the identification information of the redistribution device 1 is displayed for a time limit (for example, , 30 seconds) (step S22). The user specifies the global IP address of the IP address management server 14 in the Internet 122 by reading the displayed QR code with the QR code reader of the receiving device 210 within the time limit. (Step S23). Based on this, the receiving device 210 accesses the IP address management server 14 via the Internet 122 (step S24). The identification information of the redistribution device 1 is passed to the IP address management server 14, the latest global IP address of the redistribution device 1 corresponding thereto is received, and the redistribution device 1 is accessed via the Internet 122. Information including the global IP address of the redistribution device 1 is registered in the reception device 210 (step S13). If the state of the network connection is not changed, the operation in step S23 is not necessary for subsequent access.

  Next, as shown in FIG. 6, normal viewing and the like are performed according to the following procedure. That is, the redistribution apparatus is activated by starting a WEB browser or a dedicated application provided in the reception apparatus 210 and transmitting a reproduction request to the redistribution apparatus 1 accessed based on the global IP address that is initially set as described above. It is possible to perform operations such as viewing the desired content recorded in 1 via the Internet 122 (step S25). Further, the recording reservation list information transmitted from the redistribution device 1 is confirmed on the monitor unit 214 of the receiving device 210, a recording candidate is selected with reference to the information, and the recording reservation request is transmitted via the Internet 122. Transmission reservation, that is, recording reservation setting via the Internet 122 is also possible (step S15).

  As described above, according to the present embodiment, the content of one segment portion redistributed by the redistribution device 1 can be received and viewed by the reception device 210 by a relatively easy operation.

  Note that the receiving device 210 need not be limited to the QR code as long as the IP address of the redistribution device 1 can be directly or indirectly specified. Further, when performing distribution corresponding to IPV6, since the redistribution apparatus 1 has a unique global IP address, the same configuration as that via the LAN may be used. In addition, in order to limit the use to an individual or a family, the registration of the receiving apparatus 210 may be restricted by providing a time limit for the setting using the QR code. In addition, when a plurality of receiving devices 21 are set, access such as recording reservation is possible, but distribution may be limited to one receiving device 21.

  In the above-described embodiments, the redistribution device 1 is an example of a “redistribution device” according to the present invention, and the reception antenna 10 and the digital broadcast tuner module 20 are examples of a “reception unit” according to the present invention. The main storage device 30 is an example of the “recording unit” according to the present invention, the one-segment separation unit 91 is an example of the “separating unit” according to the present invention, and the one-segment redistribution unit 90 is the “recording unit” according to the present invention. The data broadcast search database 32 is an example of the “data broadcast search database” according to the present invention, the program database 322 is an example of the “program database” according to the present invention, and the program index database. Reference numeral 321 denotes an example of a “program index database” according to the present invention, and the database extraction creation unit 33 is an “extraction means” according to the present invention. The control unit 40 and the network communication unit 70 are examples of the “data broadcasting search unit” according to the present invention, the control unit 40 is an example of the “symbol creation unit” according to the present invention, and the monitor 220 is the present example. It is an example of the “display unit” according to the invention, the receiving device 210 is an example of the “receiving device” according to the present invention, and the one-segment broadcast tuner unit 212 is an example of the “first receiving unit” according to the present invention. The network communication unit 211 is an example of the “second receiving unit” according to the present invention, the one-segment decoding unit 213 is an example of the “decoding unit” according to the present invention, and the network communication unit 211 is the “ It is an example of “adjustment means”.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification, and a redistribution apparatus with such changes In addition, the receiving device is also included in the technical scope of the present invention.

It is a block diagram which shows the basic composition of the redistribution apparatus 1 which concerns on the Example of this invention. It is a block diagram which shows the basic composition of the receiver 210 which concerns on the Example of this invention. It is a block diagram which shows the database of the redistribution apparatus 1 which concerns on an Example. It is a schematic diagram which shows a mode that the database of the redistribution apparatus 1 which concerns on an Example is operated from the receiver 210. It is a schematic diagram which shows notionally the procedure at the time of using QR code for the access to the redistribution apparatus 1 which concerns on an Example (in the case of via LAN (Local Area Network) 121). It is a schematic diagram which shows notionally the procedure at the time of using a QR code for the access to the re-distribution apparatus 1 which concerns on an Example (example of connection via the internet 121).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Redistribution apparatus 10 Receiving antenna 20 Digital broadcasting tuner part module 30 Main memory 90 1 Segment redistribution part 91 1 Segment separation part 32 Data broadcast search database 321 Program index database 322 Program database 33 Database extraction creation part 40 Control part 70 Network Communication unit 220 Monitor 210 Receiver 211 Network communication unit 212 1 segment broadcast tuner unit 213 1 segment decoding unit

Claims (6)

Receiving means for receiving digital terrestrial television broadcast on one or more physical channels;
Recording to record a desired program included in the received terrestrial digital television broadcast, including at least one segment portion for one segment out of 13 segments constituting a physical channel corresponding to the desired program Means,
Separating means for separating the one segment portion from the desired program to be recorded;
A redistribution device comprising: a redistribution unit that redistributes the separated one segment portion to a reception device via an IP network in a video format adopted in the one segment broadcast. The receiving means further receives a data broadcast accompanying the terrestrial digital television broadcast,
The recording means further includes the data broadcast search database for further recording the received data broadcast and searching for the recorded data broadcast,
Extracting means for extracting information stored in the data broadcast search database from the recorded data broadcast according to a structure of a predetermined table;
The redistribution device according to claim 1, further comprising data broadcast search means for returning a search result in the data broadcast search database to the receiving device via the IP network. The data broadcast search database is:
A program database for storing the recorded data broadcast in association with the stream-recorded program according to the structure of the predetermined table;
The redistribution according to claim 2, further comprising: a program index database for extracting and storing information displayed as a search index in the receiving device from a predetermined field of the program database. apparatus. The redistribution device and the receiving device belong to the same LAN,
A symbol creating means for creating a symbol uniquely associated with the local IP address assigned to the redistribution device in the LAN;
The redistribution device according to any one of claims 1 to 3, further comprising display means for displaying the created symbol on the reception device. The redistribution device, the receiving device, and a management server for managing a global IP address dynamically assigned to the redistribution device in the Internet can be connected to the Internet, respectively.
A symbol creating means for creating a symbol that is uniquely associated with a global IP address that is fixedly assigned to the management server in the Internet and information including identification information of the redistribution device;
The redistribution device according to any one of claims 1 to 3, further comprising display means for displaying the created symbol on the reception device. First receiving means for receiving one segment portion for one segment of the terrestrial digital television broadcast;
Receiving a one-segment part for one-segment broadcasting out of a program stream-recorded by the re-distribution device, which is re-distributed via the IP network in the video format adopted in the one-segment broadcasting. Two receiving means;
Decoding means for decoding together one segment portion received by each of the first receiving means and the second receiving means;
One segment output from the second receiving means so that the output rate when the one segment portion is output from the second receiving means to the decoding means is the same as that from the first receiving means. A receiving device comprising: adjusting means for buffering a portion.

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