JP2009278247A - Digital television broadcast recording and reproducing device, digital television broadcast recording and reproducing method, commercial message sending-out device, and commercial message sending-out method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a CM audience rating by limiting special reproduction in a commercial message during digital television broadcast reception. <P>SOLUTION: The digital television broadcast recording and reproducing device includes: a receiving means of receiving a digital television broadcast; a storage means of recording and storing a received bit stream; an input means of receiving instructions for the start and stop of reproduction, special reproduction, etc., from a viewer; a reproduction control means of controlling a read from the storage means and extracting the bit stream for the reproduction and special reproduction; a CM attribute detecting means of detecting attribute information of a CM from the bit stream output from the reproduction control means; an output means of outputting the bit stream output from the reproduction control means as video and audio; and a special reproduction limiting means of limiting the special reproduction of the CM according to attribute contents when the CM attribute detecting means detects the CM attribute information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a digital television broadcast recording / playback apparatus, a commercial transmission apparatus in a broadcasting station, a digital television broadcast recording / playback method, and a commercial transmission method in a broadcasting station.

  2. Description of the Related Art In recent years, with the advancement of satellites such as broadcasting satellites and communication satellites and broadband digital communication technologies such as optical cables, systems for digitizing and transmitting TV (television) broadcast signals and receiving them at home are becoming widespread. is there.

  Digital TV broadcasters that are free to viewers insert commercials in the middle of a program, create and broadcast programs based on advertising revenue, and improve the audience rating of commercials to increase advertising revenue It is necessary.

  On the other hand, viewers will be able to record and play audio and video on the hard disk for a long time with the expectation that the hard disk will be faster and larger in capacity, and the recording density will be improved by about twice in a year. It is becoming. By recording on a storage medium capable of random access such as a hard disk from sequential access such as a video tape, it is possible to skip only commercials and reproduce only the program.

Examples of the above include Patent Document 1 and Patent Document 2 below.
Japanese Patent Laid-Open No. 11-187310 JP 11-112903 A

  However, in conventional digital TV broadcast receiving systems, viewers watch only programs without watching commercials, and businesses lose their advertising revenue due to a decrease in advertising effectiveness, and the business base is fluctuated. Faced with a crisis.

  The present invention has been made in view of the above-described points, and it is an object of the present invention to prevent a viewer from viewing a program by skipping the commercial and to allow the viewer to view the commercial.

  Another object of the present invention is to prevent a viewer from misunderstanding that a malfunction or inconvenience has occurred in a viewer when special playback of a commercial is restricted.

  In order to achieve the above object, the present invention described in claim 1 is a digital television broadcast recording / playback device, wherein the reception means receives digital television broadcast, the storage means records and stores the received bitstream, Input means for receiving instructions for starting / stopping, rewinding, fast-forwarding, and time jump special playback from the viewer, and controlling the reading from the storage means for playback and special playback. Reproduction control means to be taken out, commercial detection means for detecting whether the bit stream outputted from the reproduction control means is commercial, output means for outputting the bit stream outputted from the reproduction control means as video and audio, and the detection If commercial information is detected by the means, special playback restriction means for restricting special playback of commercials Characterized in that it obtain.

  The present invention according to claim 2 further comprises notification means for notifying the viewer that special reproduction cannot be performed when commercial is detected by the commercial detection means and special reproduction is instructed by the input device. Features.

  According to a third aspect of the present invention, there is provided a commercial transmission device in a broadcasting station, which is provided with attribute information that can be detected by the commercial detection means of the digital television broadcast recording / reproducing device according to the first or second aspect. It is characterized by sending out.

  Furthermore, the present invention described in claim 4 is a receiving step for receiving digital television broadcast, an accumulating step for recording and accumulating the received bit stream, and starting / stopping, rewinding, fast-forwarding, and rewinding from the viewer. An input step for receiving an instruction for special playback of jumps, a playback control step for controlling the reading from the storage step to extract a bit stream for playback and special playback, and a bit stream output from the playback control step A commercial detection step for detecting whether or not the video is a commercial, an output step for outputting the bit stream output from the playback control step as video and audio, and, when commercial information is detected by the detection means, restricts the special playback of the commercial And a special reproduction limiting step That.

  Further, the present invention according to claim 5 has a notification step of notifying the viewer that special playback is not possible when the commercial is detected by the commercial detection step and special playback is instructed from the input device. Features.

  Further, the commercial transmission method applied to the commercial transmission device in the broadcasting station according to the present invention described in claim 6 can be detected by the commercial detection method of the digital TV broadcast recording and reproducing method according to claim 4 or 5. And a step of sending the attribute information.

  As described above, the digital television broadcast recording / playback device according to claim 1 or 2, the commercial transmission device according to claim 3, and the digital television broadcast recording / playback according to claim 4 or 5. According to the method and the commercial sending method according to claim 6, there is an effect that the viewer is prevented from viewing the program only by skipping the commercial and the viewer is allowed to view the commercial.

  Further, according to the digital TV broadcast recording / playback apparatus according to claim 2 and the digital TV broadcast recording / playback method according to claim 5, when the special playback of the commercial is restricted, the viewer may experience malfunction or inconvenience. This has the effect of not misunderstanding that

  Next, details of the present invention will be described in accordance with the description of the embodiments.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of a commercial transmission apparatus according to the present invention.

  The commercial transmission device includes a commercial server 1, a commercial insertion unit 4, a system control unit 6, and a broadcast transmission unit 5. In the figure, the commercial server 1 receives the conventional commercial material 2 and the commercial attribute information 3 according to the present invention, and outputs commercial data obtained by mixing both data at a timing according to the contract with the advertiser. The commercial insertion unit 4 inserts commercial data into the program data. The broadcast sending unit 5 sends out the broadcast in a manner that can be received by the receiving means. The system control unit 6 outputs the commercial to be broadcast to the commercial server, and performs control to insert the commercial into the commercial insertion unit at an appropriate timing. The timing for inserting the commercial is based on the commercial insertion instruction information included in the program data, a timer device that starts at a predetermined time, or a switching operation by a person.

  FIG. 2 shows an example of the state of the data passing through the program data input point and the output point after the commercial insertion in the commercial insertion unit of the commercial transmission device on the time axis, and particularly shows the state of switching to the commercial. is there.

  Reference numerals 10 to 12 show how program data is input to the commercial insertion unit. There are some cases depending on the contents of the program. In any case, the program data is a bit stream in which video information, audio information, and meta information of the program are multiplexed. The meta information can include information such as text, images, and sound accompanying the program, system control unit control information for instructing insertion of a commercial, and the like. Reference numeral 10 denotes a case where program data is input even during commercial hours, such as sports or live broadcast images. Reference numeral 11 denotes a case where program data is not input during commercial switching, such as an edited program such as a drama or a movie. Reference numeral 12 denotes a case where the local station broadcasts the commercial by replacing the commercial for use in an environment in which the commercial-inserted data is sent from the broadcasting station. Reference numeral 13 denotes an output state of the commercial insertion unit. Like the program data, a commercial material composed of video information, audio information, and meta information is inserted in the commercial, and commercial attribute information data is transmitted prior to the commercial material.

  FIG. 3 shows an example of the structure of commercial attribute information data.

  The commercial attribute information includes a commercial attribute information start identifier 20, a commercial length start identifier 21, a commercial length entity 22, a commercial length end identifier 23, and a commercial attribute information end identifier 24.

  Each information will be described in detail below.

  The commercial attribute information start identifier 20 indicates the start of commercial attribute information. The commercial length start identifier 21 indicates the start of commercial length information. The commercial length entity 22 indicates the playback time of the commercial. The commercial length end identifier 23 indicates the end of the commercial attribute information. The commercial attribute information end identifier 24 indicates the end of the commercial length information.

  Since the data structure is used by the commercial detection means of this embodiment to detect that commercial playback is in progress, this attribute information is used for the purpose of skipping commercials in addition to the representation by the character string according to this embodiment. In order to prevent this from happening, it is possible to express a specific bit string that can be detected only by the commercial detection means.

  FIG. 4 shows the configuration of a digital television broadcast recording / playback apparatus. The operation of each part of the digital television broadcast recording / playback apparatus will be described with reference to FIG. The receiving unit 31 has a function of receiving, amplifying, and demodulating a digital television broadcast sent by wire or wireless and outputting a bit stream that is digital data. The storage unit 32 has a function of recording the bit stream output from the reception unit in the recording device 33 and outputting the bit stream recorded at a predetermined address in accordance with an instruction from the reproduction control unit.

  The playback control unit 34 receives commands such as video playback, stop, and special playback, and sequentially obtains addresses where necessary data is stored and instructs the storage unit 32.

  Special playback is a video playback method that uses functions such as rewinding, high-speed playback, time jumping at a specified time, and starting time from the specified location. This refers to all playback methods that are not effective for appealing.

  The commercial detection unit 35 receives the bit stream output from the storage unit and detects the reproduction of the commercial. That is, the commercial attribute information data in the bit stream is detected, the commercial length is obtained, and the commercial playback identification signal is output during playback of the commercial. When the output unit 36 receives a bit stream, the output unit 36 converts the bit stream into video and audio signals, and performs display and audio output.

  The special reproduction restriction unit 37 restricts special reproduction based on the commercial reproduction identification signal and instructs the notification unit to notify. In response to an instruction from the special reproduction restriction unit, the notification unit 38 receives the special reproduction command to the viewer, but notifies that the special reproduction is invalid.

  FIG. 5 shows a system configuration of a digital television broadcast recording / reproducing apparatus according to the present invention. Note that the configuration shown in FIG. 5 is an example, and the configuration is not limited to the illustrated configuration.

  Hereinafter, the configuration will be described in detail with reference to FIG.

  The CPU 41 controls the digital TV broadcast recording / playback apparatus according to the present embodiment, and via the bus 51, the RAM 42, the ROM 43, the storage device 44, the network interface Net I / F 45, the output device 46, the input device 48, The warning device 49 and the tuner 50 are connected to each other so that data can be transmitted and received between them. Further, the CPU 41 executes processing shown in a flowchart of FIG. The RAM 42 is a readable / writable memory that temporarily stores various calculation results and input information. The ROM 43 is a read-only memory that stores various processing programs executed by the CPU 41. The storage device 44 is configured by a hard disk or the like, and stores received broadcast data. You may comprise by the memory | storage device exchangeable using the mass storage medium which can be accessed randomly, such as DVD-RAM.

  The Net I / F 45 is a network interface configured by a telephone line, IEEE1394, or the like. The output unit 46 is configured by a decoder, a digital-analog converter, and the like, decodes digital data, converts it into video and audio signals, and outputs them. The TV 47 is a television that displays and utters video and audio signals.

  The input unit 49 is configured by a keyboard, an infrared remote control transmitter / receiver, and the like, and is a user interface input unit for a viewer to instruct special playback to the digital TV broadcast recording / playback apparatus. The notification device 49 is configured by a method such as lighting and blinking of a light emitting diode, display on a character panel, on-screen display display on a video output unit of the TV 47, and outputting a warning sound to an audio output unit. Notify viewers that special playback is not possible. The tuner 50 is a receiver that receives a digital television broadcast, decodes it, and converts it into digital data.

  FIG. 6 is a flowchart illustrating a determination method in the special reproduction restriction unit.

  When a command input is generated from the user interface unit, step S1 is activated. In step S2, the input command is evaluated to determine whether the command is special playback.

  If the instruction is for special playback, the process proceeds to step S3, where the commercial playback identification signal from the commercial detection unit is evaluated to determine whether commercial playback is in progress. If commercial playback is in progress, the process proceeds to step S4 to invalidate the input. That is, the special reproduction command input from the user interface unit is not transmitted to the reproduction control unit 34. In step S5, a notification instruction is given to the notification unit 38 to notify the viewer that the input is invalid. If it is determined in step S2 that the input command is not a special playback command or if commercial playback is not being performed in step S3, the process proceeds to step S6 and the input is passed. That is, the input of the user interface unit is transmitted to the reproduction control unit 34.

  A mechanism by which a viewer can obtain the digital TV broadcast recording / playback apparatus according to the present invention at low cost will be described. FIG. 7 is a diagram illustrating the relationship among the broadcaster 71, viewer 72, advertiser 73, and recording / playback apparatus provider 74. Each service and the flow of money will be described based on this figure.

  The broadcaster 71 listens to the advertising fee from the advertiser 73 to create a program and broadcasts it to the viewer 72 together with the commercial. The broadcaster 71 can secure the commercial audience rating by the widespread use of the recording / playback apparatus of the present invention, and can secure the advertising revenue. Further, a part of the recording / reproducing apparatus is paid to the recording / reproducing apparatus provider 74 from the advertising revenue as a consideration for improving the audience rating of the advertisement according to the present invention. The advertiser 73 pays an advertisement fee to the broadcaster 71 as consideration for broadcasting the advertisement to the viewer 72. The advertiser can select whether or not to suppress the special reproduction according to the present invention for the commercial, and the advertisement fee becomes higher when the suppression is performed than when the suppression is not performed. The recording / playback apparatus provider 74 sells the recording / playback apparatus to the viewer 72 at a low cost corresponding to the burden from the broadcaster. The viewer 72 can purchase the recording / playback apparatus of the present invention at a low cost from the recording / playback apparatus provider 74, and watches the programs and commercials broadcast from the broadcaster 71 and purchases the products provided by the advertiser 73.

  By storing information for clarifying the commercial start point in the commercial attribute information, the commercial attribute information may be inserted not before the commercial start but before a predetermined time.

  In the configuration of the digital TV broadcast recording / playback apparatus according to the present invention shown in FIG. 5, the storage device 44 is connected to the bus 51. However, the storage device 44 is connected to an external device via the Net I / F 45 and stored in the external device. The present invention may be implemented by configuring a possible storage unit.

  In addition, the storage unit may be connected to a plurality of digital TV broadcast recording / playback devices via a network, and may be configured to share digital data stored in the storage unit among the plurality of digital TV broadcast recording / playback devices. .

  The digital TV broadcasting system is a data communication using a wireless telephone network composed of a wireless telephone base, a repeater, and a receiver in addition to a wireless broadcast via terrestrial and artificial satellites and a wired broadcast using a cable TV line. It can be implemented regardless of broadcasting media, such as cable broadcasting over the network, telephone line, and power line, and video broadcasting over the Internet.

  In the first embodiment, the commercial detection means executed by the CPU 41 and the processing program for realizing the special reproduction restriction means are stored in the ROM 43. However, the program is stored in the storage device 44, and the program is stored in the storage device 44 after the power is turned on. May be read into the RAM 42 and executed. In this case, the program stored in the storage device 44 receives the program via the Net I / F 45, or receives the bit stream in which the program is multiplexed via the tuner 50 and separates the program data. And you can get it.

It is a block diagram which shows schematic structure of the commercial transmission apparatus of this invention. It is a figure explaining the flow of data in the commercial transmission apparatus of this invention. It is explanatory drawing which shows the commercial attribute information data based on the Example of this invention. It is a block diagram which shows schematic structure of the television broadcast recording / reproducing apparatus of this invention. It is a block diagram which shows the system configuration | structure of the television broadcast recording / reproducing apparatus of this invention. It is a flowchart which shows the procedure of the control program memorize | stored in ROM of the television broadcast recording / reproducing apparatus of this invention. It is the figure explaining the relationship between a broadcast provider, a viewer, an advertiser, and a recording / reproducing apparatus provider.

Claims (6)

  A digital TV broadcast recording / playback device, which receives a digital TV broadcast, a storage means for recording and storing the received bitstream, and starts, stops, rewinds, fast-forwards, and time jumps from the viewer. Input means for receiving a special reproduction instruction, reproduction control means for controlling the reading from the storage means to extract a bit stream for reproduction and special reproduction, and the bit stream output from the reproduction control means is a commercial A commercial detection means for detecting whether or not a bit stream output from the reproduction control means is output as video and audio, and special information for restricting special reproduction of commercials when commercial information is detected by the detection means A digital television broadcast recording / reproducing device characterized by comprising reproduction limiting means .   2. The digital television broadcast according to claim 1, further comprising notification means for notifying the viewer that special reproduction cannot be performed when a commercial is detected by the commercial detection means and special reproduction is instructed by the input device. Recording / playback device. In a commercial transmission device at a broadcasting station,
3. A commercial transmission apparatus characterized in that the commercial detection means of the digital television broadcast recording / playback apparatus according to claim 1 or 2 sends the attribute information that can be detected. A recording / playback method applied to a digital television broadcast recording / playback apparatus,
A receiving step for receiving a digital television broadcast, an accumulating step for recording and accumulating the received bitstream, an input step for receiving an instruction to start / stop playback, rewind, fast-forward, and time jump special playback from the viewer; For reproduction and special reproduction, a reproduction control step for controlling reading from the accumulation step to extract a bit stream, a commercial detection step for detecting whether the bit stream output from the reproduction control step is a commercial, and An output step for outputting the bit stream output from the playback control step as video and audio, and a special playback restriction step for limiting the special playback of the commercial when commercial information is detected by the detecting means. Digital TV broadcast recording and playback .   5. The digital television broadcast according to claim 4, further comprising a notification step of notifying the viewer that special reproduction cannot be performed when the commercial is detected by the commercial detection step and special reproduction is instructed from the input device. Recording playback method.   A commercial transmission method applied to a commercial transmission device in a broadcasting station, the step of adding attribute information detectable by the commercial detection method of the digital television broadcast recording / reproducing method according to claim 4 or 5 and transmitting the attribute information A commercial transmission method characterized by comprising:

Images