JP2007188610A - Optical disk player, optical disk and optical disk reproduction system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk reproduction system in which advertising content to be reproduced before a main content does not become out-of-date even though the time elapses from release of the optical disk such as a movie DVD. <P>SOLUTION: A main movie content, the plurality of advertising contents, and reproduction control information for alternatively updating the selection of any one among the plurality of advertising contents based on a reproduction date and time of the disk, are written onto the optical disk. The optical disk player is equipped with a timer function for measuring the present date and time, and when the reproduction of the optical disk is instructed, the advertising content to be reproduced is selected on the basis of the current date and time and the reproduction period information, and the selected advertising content and main movie content are continuously reproduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical disc playback apparatus, an optical disc, and an optical disc playback system that play back additional content such as advertisements before and after main content such as movies.

  Many optical discs such as movie DVDs currently on the market are such that advertisement content is played before the main movie content. Most of this advertising content is to advertise the screening of other movies, and the content is based on the start of sales of this optical disc. In other words, when other movies that are targeted for advertising are being shown in movie theaters at the time of the optical disc release, advertising content such as “** (movie title) being a big hit” is written. It is.

Note that Patent Document 1 describes a recording medium playback apparatus in which a playback period is set for each of a plurality of randomly played contents, and playback of the contents after the playback period is not permitted is described. . Patent Document 2 describes a digital broadcast recording / reproducing apparatus capable of viewing interactive programs in which communication with a server is prohibited when an interactive program with an expired expiration date is reproduced. ing.
JP 2005-196836 A JP 2002-290891 A

  However, in the case of an optical disc including advertisement content as described above, the advertisement content becomes obsolete or becomes a thing of the past when time elapses from the start of the sale. In other words, after the screening of the movie to be advertised is finished, the “big hit showing” advertisement is old and false. Therefore, when the old advertisement content is reproduced in this way, there is a problem that not only the advertising effect is not obtained but also the impression of the movie to be advertised is worsened.

  In the devices disclosed in Patent Documents 1 and 2 above, playback or the like is prohibited for content for which the playback time limit has passed. However, with this configuration, playback of old content can only be prohibited, and content is updated and displayed. I couldn't.

  An object of the present invention is to provide an optical disc playback apparatus, an optical disc, and an optical disc playback system in which advertisement content that is played back does not become obsolete even after a lapse of time from the start of sales of an optical disc such as a movie DVD.

  The present invention has the following configuration in order to solve the above problems.

(1) In an optical disk playback system comprising an optical disk and an optical disk playback device for playing back the optical disk,
The optical disc includes main content, a plurality of additional content corresponding to multi-angle playback or multi-story playback, playback period information for sequentially and sequentially updating additional content to be played back in a predetermined period, playback date and time, A procedure for selectively selecting any one of the plurality of additional contents based on the reproduction period information, and a procedure for continuously reproducing the selected additional contents and the main content are executed on the optical disc reproducing apparatus. Storing playback control program information,
The optical disc playback apparatus includes a disc reading unit that reads data from the optical disc, a video / audio playback unit that plays back video and / or audio based on the read data, and a timer function that measures the current date and time. When reproduction is instructed, based on the reproduction control program information, the additional content to be reproduced is selected based on the date and time and the reproduction period information at that time, and the selected additional content and the main content are read. In addition to controlling the disk reading unit and controlling the video / audio reproduction unit to reproduce the read data, in this case, when the reproduction period information is not included in the reproduction period information, And a control unit that skips reproduction of the additional content.

  (2) On an optical disc storing main content, a plurality of additional content corresponding to multi-angle playback or multi-story playback, and playback period information for sequentially and sequentially updating the additional content to be played back in a predetermined period; Is further memorized.

  In this configuration, a plurality of additional contents to be reproduced accompanying the main contents are stored. The plurality of additional contents correspond to multi-angle playback or multi-story playback, and any one of them is alternatively selected and played back by playback control. The additional content is, for example, advertising content that is produced in anticipation of the reproduction time (predicted in advance). In this way, if the additional content is produced by accurately predicting the playback time, it can always be played back as timely content if played according to the playback period information.

  (3) A procedure for selectively selecting any one of the plurality of additional contents based on the reproduction date and time and the reproduction period information, a procedure for continuously reproducing the selected additional contents and the main content, Is further stored with reproduction control program information for causing the optical disc reproduction apparatus to execute the above.

  By storing the playback control program information for realizing the automatic selection function of the additional content on the optical disc side, the optical disc playback device can store the playback control program information even if the playback control program is not installed in the device. If there is a function to be read and executed, it is possible to execute a reproduction control operation for selectively selecting and reproducing a plurality of additional contents according to the reproduction period information.

  (4) An optical disc playback apparatus that includes a disc reading unit that reads data from an optical disc and a video / audio playback unit that plays back video and / or audio based on the read data, and includes a timer function that measures the current date and time. When the reproduction of the optical disc described in (2) is instructed, the reproduction period table is searched by the date and time at that time, the additional content to be reproduced is selected, and the selected additional content and the main content are read. And a control unit for controlling the disk reading unit and executing a reproduction control process for controlling the video / audio reproduction unit to reproduce the read data.

  The present invention is an apparatus for reproducing an optical disc storing main content and a plurality of additional content. A plurality of additional contents are selectively selected based on the reproduction date / time and the reproduction period information, and the most suitable content is reproduced. The additional content is, for example, advertising content that is produced by predicting the playback time in advance. By reproducing the additional content produced by accurately predicting the reproduction time as described above according to the reproduction period information, it is possible to always reproduce timely content.

  (5) The control unit executes the reproduction control process based on reproduction control program information stored in the optical disc.

  In the present invention, the automatic selection function of the additional content is executed using the playback control program information stored in the optical disc, so that the playback control program can be used even if the playback control program is not installed in the optical disc playback apparatus. If there is a function to read and execute information, it is possible to execute a playback control operation in which playback control program information is read from the optical disc, and a plurality of additional contents are selectively selected according to the playback period information and played back. Become.

  (6) The control unit skips the reproduction of the additional content when the date and time when the reproduction is instructed is not included in the reproduction period information.

  In the present invention, when the reproduction period information does not include the date and time when the reproduction instruction is given, reproduction of the additional content is skipped without selecting any of the plurality of additional content. As a result, when all the additional content becomes obsolete or has become a thing in the past, it is possible to eliminate the possibility that the viewer's impression is deteriorated by reproducing the older additional content.

  As described above, according to the present invention, since a plurality of additional contents are selectively selected according to the reproduction date and reproduced, each additional content is produced with contents corresponding to the reproduction period. Additional content that is always timely can be reproduced whenever the optical disk is reproduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an optical disc reproducing apparatus 20 according to the embodiment. This optical disk reproducing apparatus reproduces a movie DVD as the optical disk 1. As shown in FIG. 2, the movie DVD includes an advertisement title VTS1 including an advertisement content reproduced prior to the main movie, in addition to the main title VTS2 including the main movie content.
The movie DVD in FIG. 2 includes a plurality of advertisement contents (contents 1, 2, and 3) and reproduction control information for multi-angle reproduction as advertisement titles. However, this multi-angle playback is not freely selectable by the user, and one advertisement content is selectively selected according to the playback date and time based on the playback period information and playback control program information included in the playback control information. Is. When playing back this movie DVD, the optical disk playback device 20 in FIG. 1 first selects and plays back one advertisement content corresponding to the date and time at that time based on the playback control information of the advertisement title VTS1, and then plays the main part. Play movie content.

  In FIG. 1, an optical disk reproducing device 20 has a tray for setting an optical disk 1 such as a DVD. The optical disk 1 set on the tray is rotated by a spindle motor (not shown), and pits recorded on the optical disk 1 are optically read as a high frequency signal by an optical pickup (not shown). The servo control circuit 4 is a control circuit for controlling the focus and tracking of the optical pickup and for controlling the rotation of the optical disc.

  The high-frequency signal read by the optical pickup is sent to a synchronization detection / AD (analog-digital) conversion circuit 2 to be amplified, detected synchronously based on a reference clock, and converted from an analog signal to a digital signal. The high-frequency signal converted into the digital signal is sent to the demodulation / error correction circuit 3 and demodulated into data, and the data error at the time of reading is strongly corrected.

  The data error-corrected by the demodulation / error correction circuit 3 is input to the CPU 7, the video signal processing circuit 5, and the audio signal processing circuit 6 according to the contents of the data. If the data is program information (navigation data), it is input to the CPU 7. When the data is presentation data, the data is separated into a video signal, a sub-picture signal, and an audio signal, the video signal and the sub-picture signal are sent to the video signal processing circuit 5, and the audio signal is sent to the audio signal processing circuit. 6 is sent.

  The video signal and sub-picture signal sent to the video signal processing circuit 5 are decoded by the video signal processing circuit 5 and rearranged, and a video signal according to a predetermined signal system, for example, the NTSC (National Television System Committee) system. The video signal is encoded, converted from a digital signal to an analog signal, and output to the monitor device 30 as a video signal.

  The audio signal sent to the audio signal processing circuit 6 is decoded by the audio signal processing circuit 6, converted from a digital signal to an analog signal, and output to the monitor device 30 connected to the optical disc playback device 20. The

  The CPU 7 controls the reproduction order of titles, angle selection in the case of multi-angle titles, and the like based on the program information input to the demodulation / error correction circuit 3. The CPU 7 receives control signals and information signals that are reproduced by the video signal processing circuit 5 and the audio signal processing circuit 6. The CPU 7 controls reproduction of video and audio by these control signals and information signals.

  The CPU 7 includes a ROM 8 for storing a control program for controlling the system, a RAM 9 for storing various control information, a timer 10 for timing the current date and time, a title number during playback of the optical disc 1, a chapter number, a playback A display unit 11 for displaying various information such as time and a remote control receiving unit 12 for receiving a command signal by a key operation of the remote control device 13 are connected.

  The CPU 7 receives the command signal sent from the remote control device 13 and sends control signals to the servo control circuit 4, the video signal processing circuit 5, and the audio signal processing circuit 6 to control the system of the optical disc playback device 20.

  The remote control device 13 includes a power key for sending a signal for turning on / off the optical disc playback device 20, a playback key for sending a playback control signal for the optical disc, a stop key, a pause key, a fast forward key, a fast reverse key, a title / Various keys (not shown) such as a numeric keypad for selecting chapters are provided, and the optical disk reproducing apparatus 20 can be operated as desired by the viewer operating these keys.

  Various keys provided on the remote control device 13 for operating the optical disc playback device 20 may also be provided on the operation panel of the optical disc playback device 20. Various information displayed on the display unit 11 may be displayed on the screen of the monitor device 30 connected to the optical disk reproducing device 20.

  FIG. 2 is a diagram showing a file structure of an optical disc reproduced by the optical disc reproducing apparatus of FIG. Two titles, an advertisement title VTS1 (Video Title Set) and a main title VTS2, are recorded on this optical disc. These titles are configured as a folder containing presentation data including content to be reproduced and navigation data (reproduction control information) for controlling the reproduction time and reproduction procedure (hereinafter referred to as the word “title”). Is a folder containing presentation data and navigation data). The presentation data of the main title VTS2 is, for example, linear movie content, and the presentation data of the advertisement title VTS1 is, for example, content such as a trailer of another movie.

  VMG (Video Manager) is a folder containing information for controlling the entire disc (volume), and this disc is composed of the advertisement title VTS1 and the main title VTS2, and is used for continuous playback in the order of VTS1 → VTS2. Program information is recorded.

  The advertisement title VTS1 includes VTSI (Video Title Set Information) 100 that is reproduction control information and three advertisement contents (contents 101, 102, and 103) that are presentation data. The advertisement contents 101, 102, and 103 are alternatively reproduced as multi-angle contents. The reproduction control information 100 includes reproduction control program information for selectively selecting the advertisement content according to the reproduction date and time and executing multi-angle reproduction, and reproduction period information 100a for determining the reproduction period of each advertisement content. .

  Further, the main title VTS2 is a linear title without a branch, and thus detailed description thereof is omitted.

FIG. 3 is a diagram for explaining the three advertisement contents 101, 102, 103 included in the advertisement title VTS1 and the reproduction period thereof. This advertisement title VTS1 is a title for advertising a movie (advertisement target movie) different from the movie of the main title VTS2.
The advertisement content 101 is a content for advertising the screening of the movie to be advertised in a movie theater, and includes the word “currently showing a big hit”. Therefore, the advertisement content 101 has a playback period from the release (start of sale) of the DVD (optical disc) to the date (July 6, 2005) when the screening of the advertisement target movie ends.

  Further, the advertising content 102 is a content for advertising that the screening of the movie to be advertised at the movie theater has ended and that the DVD has been released and rented. For this reason, the reproduction period of the content 102 of the advertisement is set to a period in which the advertisement is not obsolete after the screening of the movie to be advertised in the movie theater is finished and the sale / rental of the DVD is started. Here, it is a period until the date (October 8, 2005) when the release decision of the second movie of this movie series is announced. In other words, the advertising content is a pre-recorded future content that can be predicted when sales of the optical disc 1 are started.

  The advertising content 103 is content for advertising the release decision of the second movie of this movie series. For this reason, the reproduction period of the advertisement content 103 is the entire period after the date on which the release decision of the second work is announced (October 8, 2005). However, if this content is played back for a long time, the content becomes obsolete, and after the second work is actually released, it becomes the past content, so the end of the playback period of this advertising content 103 Is also determined appropriately. Here, it is set to April 7, 2005, six months after the reproduction start date (October 8, 2005).

  The end of the reproduction period of the final advertisement content may be written in the reproduction control information of the optical disc in this way. On the other hand, even if this final information is not written in the playback control information of the optical disc, the optical disc playback device calculates the period after the playback of the final advertising content, and this exceeds a certain period. In this case, it may be automatically determined that the reproduction period has ended. When this optical disc is played after the final advertising content playback period has ended, playback of the main content is directly skipped, skipping playback of the advertising content.

  FIG. 4 is a flowchart showing the operation of the optical disk reproducing apparatus according to the embodiment.

First, the optical disk 1 is set on the tray of the optical disk reproducing apparatus 20 (s1). It is assumed that the data shown in FIGS. 2 and 3 are written on the optical disc 1. Next, when the playback key is pressed, playback starts (s2). When reproduction of the optical disk 1 starts, first, VMG (Video Manager) is read (s3), and titles are reproduced in the order specified by the VMG. In the case of the optical disc 1, first, in order to reproduce the advertisement title (VTS1), the reproduction control information (VTSI) 100 of this title is read (s4). The advertisement title reproduction control information 100 indicates that the title is the title of the multi-angle content that is automatically switched. Therefore, the determination whether the title is an automatic switching title in s5 is positively passed, and the process proceeds to s6.

In s6, since automatic switching is performed, multi-angle manual switching operation is prohibited. Then, the current date is read from the timer 7 (s7), the date and time are compared with the reproduction period information 100a included in the reproduction control information 100, the advertisement content to be reproduced is selected (s8), and it is reproduced. (S9, s10, s11).
That is, in the example of FIGS. 2 and 3, the advertisement content 101 is reproduced from the start of sales to July 6, 2005 (s8 → s9). The advertising content 102 is reproduced during the period from July 7, 2005 to October 7, 2005 (s8 → s10). If it is a period from October 8, 2005 to April 7, 2006, the advertisement content 103 is reproduced (s8 → s11). After the reproduction of the advertising content, the process proceeds to the main title reproduction operation (s12).

  On the other hand, if it is after April 8, 2006, the reproduction of the advertisement title is skipped because there is no content to be reproduced, and the flow proceeds to the reproduction operation s12 of the main title.

  In the above flowchart, the playback of the advertisement title is skipped when the playback date and time has passed the playback period of the last advertisement content, but the last advertisement content is continued ignoring the playback period information written on the optical disc. You may make it reproduce automatically.

  Further, the playback period information for selecting the advertisement content is a period in units of days, but a playback period of “from what time of what day to what time of day” may be defined in units of time.

  In the present invention, the additional title is not limited to the advertisement title. Further, the multi-angle additional title is not limited to one, and a plurality of multi-angle titles may be included in one volume.

  Further, the method for automatically switching the reproduction of advertisements is not limited to the multi-angle method. For example, a multi-story system may be used. In the case of the multi-story system, the playback time of each content may not be the same.

1 is a block diagram of an optical disc playback apparatus according to an embodiment of the present invention. It is a figure explaining the data structure of the optical disk which is embodiment of this invention. It is a figure explaining the multi-angle advertisement content currently recorded on the said optical disk. It is a flowchart explaining operation | movement of the said optical disk reproducing | regenerating apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Optical disk 5 ... Video signal processing circuit 6 ... Audio signal processing circuit 7 ... CPU
8 ... ROM
9 ... RAM
20 ... Optical disk playback device 30 ... Monitor 100 ... Playback control information (VTSI)
100a ... advertising period information 101, 102, 103 ... advertising content

Claims (6)

In an optical disk playback system comprising an optical disk and an optical disk playback device for playing back the optical disk,
The optical disc is
Main content and
Multiple additional content that supports multi-angle playback or multi-story playback,
Reproduction period information for sequentially and sequentially updating additional content to be reproduced in a predetermined period;
Optical disc playback includes a procedure for selectively selecting any one of the plurality of additional contents based on the playback date and the playback period information, and a procedure for continuously playing the selected additional contents and the main content. Playback control program information to be executed by the device;
Remember
The optical disc playback apparatus comprises:
A disk reader for reading data from the optical disk;
A video / audio reproduction unit for reproducing video and / or audio based on the read data;
A timer function for measuring the current date and time, and when the playback of the optical disc is instructed, based on the playback control program information, selects additional content to be played based on the current date and time and the playback period information; The disc reading unit is controlled to read the selected additional content and the main content, and the video / audio reproduction unit is controlled to reproduce the read data. In this case, when the reproduction is instructed A control unit that skips reproduction of the additional content when date and time is not included in the reproduction period information;
Optical disc playback system with In the optical disc storing the main content,
An optical disc further storing a plurality of additional contents corresponding to multi-angle reproduction or multi-story reproduction, and reproduction period information for sequentially and sequentially updating additional contents to be reproduced in a predetermined period.   Optical disc playback includes a procedure for selectively selecting any one of the plurality of additional contents based on the playback date and the playback period information, and a procedure for continuously playing the selected additional contents and the main content. The optical disc according to claim 2, further storing reproduction control program information to be executed by the apparatus. In an optical disc reproducing apparatus comprising a disc reading unit for reading data from an optical disc, and a video / audio reproducing unit for reproducing video and / or audio based on the read data,
A timer function for measuring the current date and time is provided, and when playback of the optical disk according to claim 2 is instructed, the additional content to be played is selected by searching the playback period table at the date and time at that time, and the selected content is selected. An optical disc playback apparatus comprising: a control unit that controls the disc reading unit to read additional content and the main content, and executes a playback control process for controlling the video / audio playback unit to play back the read data.   5. The optical disc playback apparatus according to claim 4, wherein the control unit executes the playback control process based on playback control program information stored in the optical disc.   6. The optical disc playback apparatus according to claim 4 or 5, wherein the control unit skips playback of the additional content when a date and time when the playback is instructed is not included in the playback period information.

Images