JP5933063B2 - Receiving apparatus and receiving method - Google Patents

Description

  The technical field relates to a three-dimensional (three-dimensional) video broadcast receiving apparatus, receiving method, and transmitting / receiving method.

  Patent Document 1 has a problem of “providing a digital broadcast receiver capable of actively notifying that a program requested by a user starts on a certain channel” (see Patent Document 1 [0005]). As a means for solving the problem, “a means for extracting program information included in a digital broadcast wave and selecting a program to be notified using selection information registered by the user; and a message indicating the presence of the selected program to be notified And a means for interrupting and displaying the screen being displayed "(see Patent Document 1 [0006]).

  Further, Patent Document 2 provides “an image data generation device that provides versatility to image data for three-dimensional display, and an image data reproduction device that reproduces the data” (see Patent Document 2 [0014]). As a means for solving the problem, “the image data recording apparatus inputs a parameter representing a condition for photographing a three-dimensional image and encodes the parameter to generate photographing condition information. A generation unit, and a file generation unit that generates a multimedia information file including at least one of the imaging condition information and the 3D image data, or the 3D image data or the 2D image data ”(Patent Document 2 [0015] Reference) etc. are described.

JP 2003-9033 A JP 2009-124719 A

  However, Patent Document 1 does not disclose the viewing of 3D content. For this reason, there is a problem that the receiver cannot recognize that the program currently received or received in the future is a 3D program.

  Further, Patent Document 2 does not disclose from the viewpoint of how to disclose recorded 3D information to users. Therefore, there is a problem that the advantages as a receiving device cannot be fully utilized.

  In order to solve the above-described problems, an embodiment of the present invention may use, for example, the technical idea described in the claims.

  According to the above means, the receiver can recognize that the program currently received or received in the future is a 3D program, and can recognize which of the recorded programs is a 3D program. It becomes possible to improve the convenience of the user.

An example of the block diagram which shows the structural example of a system. 1 is an example of a block diagram illustrating a configuration example of a transmission device 1. FIG. Example of stream format type assignment. An example of the structure of a component descriptor. An example of component contents and component types that are components of a component descriptor. An example of component contents and component types that are components of a component descriptor. An example of component contents and component types that are components of a component descriptor. An example of component contents and component types that are components of a component descriptor. An example of component contents and component types that are components of a component descriptor. An example of the structure of a component group descriptor. An example of component group type. An example of component group identification. An example of charging unit identification. An example of the structure of a 3D program detail descriptor. The figure which shows the example of 3D / 2D classification. The figure which shows the example of 3D system classification. An example of the structure of a service descriptor. An example of service type. An example of the structure of a service list descriptor. An example of the transmission operation rule in the transmission apparatus 1 of a component descriptor. An example of the transmission operation rule in the transmission apparatus 1 of a component group descriptor. An example of the transmission operation rule in the transmission apparatus 1 of 3D program detailed descriptor. An example of the transmission operation rule in the transmission apparatus 1 of a service descriptor. An example of the transmission operation rule in the transmission apparatus 1 of a service list descriptor. An example of the process with respect to each field of a component descriptor in the receiver 4. An example of processing for each field of the component group descriptor in the receiving device 4 An example of the process with respect to each field of 3D program detail descriptor in the receiver 4. FIG. An example of the process with respect to each field of a service descriptor in the receiver 4. An example of the process with respect to each field of a service list descriptor in the receiver 4. An example of the block diagram of the receiver of this invention. An example of the schematic diagram of a CPU internal function block diagram in the receiver of this invention. An example of a flowchart of 2D / 3D video display processing based on whether or not the next program is 3D content. An example of message display. An example of message display. An example of message display. An example of message display. An example of the flowchart of the system control part at the time of the next program start. An example of message display. An example of message display. An example of the block diagram which shows the structural example of a system. An example of the block diagram which shows the structural example of a system. Explanatory drawing of an example of 3D reproduction | regeneration / output / display processing of 3D content. Explanatory drawing of an example of 2D reproduction | regeneration / output / display processing of 3D content. Explanatory drawing of an example of 3D reproduction | regeneration / output / display processing of 3D content. Explanatory drawing of an example of 2D reproduction | regeneration / output / display processing of 3D content. An example of a flowchart of 2D / 3D video display processing based on whether or not the current program is 3D content. An example of message display. An example of a display processing flowchart after user selection. An example of message display. An example of a flowchart of 2D / 3D video display processing based on whether or not the current program is 3D content. An example of message display. The example of the combination of the stream at the time of 3D video transmission. An example of a program guide display. An example of a program guide display. An example of message display. An example of the flowchart at the time of displaying an unsupported 3D system message. An example of message display. An example of a program display. An example of the structure of a content descriptor. An example of the code table about a program genre. An example of a code table for program characteristics. An example of a code table for program characteristics. An example of a block diagram showing a configuration example of a recording / reproducing unit 27. FIG. An example of a folder / file structure of data to be recorded on the recording medium. An example of a folder / file structure of data to be recorded on the recording medium. An example of the flowchart at the time of recording 2D / 3D identification information. An example of the flowchart at the time of recording 2D / 3D identification information. An example of the flowchart at the time of recording 2D / 3D identification information. An example of a folder / file structure of data to be recorded on the recording medium. An example of a folder / file structure of data to be recorded on the recording medium. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of 3D information display when creating a playlist. An example of a local network configuration. An example of 3D information display when displaying a list of programs recorded on the recording medium. An example of the flowchart at the time of transmitting the program information of 3D program to a network connection apparatus. An example of 3D information display at the time of dubbing execution.

  Hereinafter, examples (examples) of the preferred embodiments of the present invention will be described. However, the present invention is not limited to this embodiment. The present embodiment mainly describes the receiving apparatus and is suitable for implementation in the receiving apparatus, but does not hinder application to other than the receiving apparatus. Moreover, it is not necessary to employ all the configurations of the embodiment, and can be selected.

<System>
FIG. 1 is a block diagram illustrating a configuration example of a system according to the present embodiment. The case where information is transmitted / received by broadcast and recorded / reproduced is illustrated. However, it is not limited to broadcasting but may be VOD by communication, and is also collectively referred to as distribution.

  1 is a transmission device installed in an information providing station such as a broadcasting station, 2 is a relay device installed in a relay station or a broadcasting satellite, 3 is a public line connecting the general household and the broadcasting station such as the Internet, or a user's home A receiving device 4 installed in a network network to be installed in a user's home or the like is a receiving recording / reproducing unit 10 built in the receiving device 4. The reception recording / reproducing unit 10 can record and reproduce the broadcast information, or reproduce the content from a removable external medium.

  The transmission device 1 transmits the modulated signal radio wave via the relay device 2. As shown in the figure, in addition to transmission by satellite, for example, transmission by cable, transmission by telephone line, transmission by terrestrial broadcasting, transmission via a network such as the Internet via the network 3 including a public line, etc. can also be used. As will be described later, the signal radio wave received by the receiving device 4 is demodulated into an information signal and then recorded on a recording medium as necessary. Alternatively, in the case of transmission via the public line network, the receiving device 4 that has received the data after being converted into a format such as a data format (IP packet) conforming to a protocol (for example, TCP / IP) suitable for the public line network Is decoded into an information signal, which is recorded on a recording medium as a signal suitable for recording if necessary. In addition, the user can watch the video and audio indicated by the information signal by connecting the receiving device 4 and a display (not shown) when the receiving device 4 has a built-in display, and connecting the receiving device 4 to a display (not shown). Can do.

<Transmitter>
FIG. 2 is a block diagram illustrating a configuration example of the transmission device 1 in the system of FIG.

  11 is a source generation unit, 12 is an encoding unit that compresses MPEG2 or H.264 and adds program information, 13 is a scramble unit, 14 is a modulation unit, 15 is a transmission antenna, and 16 is management information. Part. Information such as video and audio generated by the source generation unit 11 including a camera and a recording / playback device is compressed by the encoding unit 12 so that it can be transmitted in a smaller occupied band. If necessary, the scrambler 13 performs transmission encryption so that a specific viewer can view. The signal is modulated as a signal suitable for transmission, such as OFDM, TC8PSK, QPSK, and multilevel QAM, by the modulation unit 14, and then transmitted as a radio wave from the transmission antenna 15 toward the relay device 2. At this time, the management information adding unit 16 sets program identification information such as content attributes created by the source generation unit 11 (for example, video and audio encoding information, audio encoding information, program configuration, 3D video In addition, program arrangement information created by the broadcasting station (for example, the configuration of the current program and the next program, the format of the service, the configuration information of the program for one week, etc.) is also added. The program specifying information and the program arrangement information are collectively referred to as program information below.

  In many cases, a plurality of pieces of information are multiplexed in one radio wave by a method such as time division or spread spectrum. Although not shown in FIG. 2 for simplicity, in this case, there are a plurality of systems of the source generation unit 11 and the encoding unit 12, and a multiplex for multiplexing a plurality of pieces of information between the encoding unit 12 and the scramble unit 13. Part (multiplexing part) is placed.

  Similarly, for signals transmitted via the network 3 including the public line, the signal generated by the encoding unit 12 can be viewed by a specific viewer at the encryption unit 17 as necessary. Is encrypted as follows. After being encoded by the communication path encoding unit 18 so as to be a signal suitable for transmission on the public line network, it is transmitted from the network I / F (Interface) unit 19 toward the public line network.

<3D transmission system>
There are roughly two types of transmission methods for 3D programs transmitted from the transmission apparatus 1. One method is a method in which video for the left eye and right eye is stored in one image by utilizing an existing 2D program broadcasting method. This method is an MPEG2 (Moving Picture Experts Group 2) or H.264 standard as a video compression method. H.264 AVC is used, and its features are compatible with existing broadcasts, can use existing relay infrastructure, and can be received by existing receivers (STB, etc.). Half (vertical or horizontal) 3D video transmission. For example, as shown in FIG. 39A, one image is divided into right and left, and the horizontal width of each of the left-eye video (L) and the right-eye video (R) is about half that of a 2D program, A “Side-by-Side” method with a screen size that is the same size as a 2D program, and a single image divided vertically into left-eye video (L) and right-eye video (R) in the horizontal direction. “Top-and-bottom” method, which is the same as 2D programs in width and about half the screen size of 2D programs in the vertical direction, “Field alternative” method that uses interlace, and each scanning line There is a “Line alternative” method that alternately stores left-eye and right-eye images, and a “Left + Depth” method that stores 2-dimensional (one side) image and depth (distance to subject) information for each pixel of the image. . Since these methods divide one image into a plurality of images and store a plurality of viewpoint images, the encoding method itself is MPEG2 or H.264 which is not originally a multi-view video encoding method. The H.264 AVC (excluding MVC) encoding method can be used as it is, and there is an advantage that 3D program broadcasting can be performed by utilizing the existing 2D program broadcasting method. In addition, for example, when a 2D program can be transmitted with a screen size of 1920 dots in the maximum horizontal direction and 1080 lines in the vertical direction, one piece is required when 3D program broadcasting is performed in the “Side-by-Side” format. The left-eye video (L) and the right-eye video (R) are each stored in a screen size of 960 dots in the horizontal direction and 1080 lines in the vertical direction and transmitted. Similarly, in this case, when 3D program broadcasting is performed by the “Top-and-Bottom” method, one image is divided into left and right images (L) and right eye images (R) in the horizontal direction. May be transmitted with a screen size of 1920 dots and a vertical size of 540 lines.

  As another method, there is a method of transmitting the left-eye video and the right-eye video in separate streams (ES). In this embodiment, this method is hereinafter referred to as “2-viewpoint-specific ES transmission”. As an example of this method, for example, H., which is a multi-view video encoding method. There is a transmission system based on H.264 MVC. The feature is that high-resolution 3D video can be transmitted. When this method is used, there is an effect that high-resolution 3D video can be transmitted. Note that the multi-view video encoding method is a standardized encoding method for encoding multi-view video, and multi-view video can be encoded without dividing one image for each viewpoint. A separate image is encoded for each viewpoint.

  When transmitting 3D video in this manner, for example, the encoded image for the left-eye viewpoint may be used as the main viewpoint image, and the encoded image for the right eye may be transmitted as another viewpoint image. In this way, the main viewpoint image can be compatible with the existing 2D program broadcasting system. For example, H.264 is used as a multi-view video encoding method. When H.264 MVC is used, H.264 is used. For the base layer sub-bitstream of H.264 MVC, the main viewpoint image is H.264. H.264 AVC 2D images can be kept compatible, and the main viewpoint image can be displayed as a 2D image.

  Furthermore, in the embodiment of the present invention, the following scheme is also included as another example of the “3D2 viewpoint-specific ES transmission scheme”.

  As another example of the “3D2 viewpoint-specific ES transmission method”, the encoded image for the left eye is encoded as the main viewpoint image in MPEG2, and the encoded image for the right eye is set as another viewpoint image. H.264 AVC is encoded and included in a separate stream. According to this method, since the main viewpoint image becomes MPEG2 compatible and can be displayed as a 2D image, it is possible to maintain compatibility with an existing 2D program broadcasting method in which MPEG2 encoded images are widely used. is there.

  Another example of the “3D2 viewpoint-specific ES transmission method” is that the encoded image for the left eye is encoded with MPEG2 as the main viewpoint image, the encoded image for the right eye is encoded with MPEG2 as the other viewpoint image, and each stream is separate. Include the method. In this method, since the main viewpoint image is compatible with MPEG2 and can be displayed as a 2D image, it is possible to maintain compatibility with an existing 2D program broadcasting method in which encoded images based on MPEG2 are widely used.

  As another example of the “3D2 viewpoint-specific ES transmission method”, an encoded image for the left eye is used as a main viewpoint image, and H.264 AVC or H.264. It is possible to encode with H.264 MVC and encode with MPEG2 the encoded image for the right eye as another viewpoint image.

  Apart from the “3D2 viewpoint-specific ES transmission scheme”, MPEG2 and H.264 which are not originally defined as multi-view video encoding schemes. Even with an encoding method such as H.264 AVC (excluding MVC), 3D transmission is also possible by generating a stream in which left-eye video and right-eye frames are alternately stored.

<Program information>
Program identification information and program arrangement information are referred to as program information.
The program specific information is also called PSI (Program Specific Information), and is information necessary for selecting a required program, and specifies a packet identifier of a TS packet that transmits a PMT (Program Map Table) related to the broadcast program. (Program Association Table), a packet identifier of a TS packet that transmits each encoded signal constituting a broadcast program, and a PMT that specifies a packet identifier of a TS packet that transmits common information among related information of pay broadcasting, a modulation frequency, etc. From four tables, NIT (Network Information Table) for transmitting information relating road information and broadcast programs, and CAT (Conditional Access Table) for specifying packet identifiers of TS packets for transmitting individual information among related information of pay broadcasting. Therefore, it is defined in the MPEG2 system standard. For example, it includes video encoding information, audio encoding information, and program configuration. In the present invention, information indicating whether or not the video is a 3D video is newly included. The PSI is added by the management information adding unit 16.

  Program sequence information, also called SI (Service Information), is a variety of information defined for the convenience of program selection, including MPEG-2 system standard PSI information, program name, broadcast date, program content, etc. There are an EIT (Event Information Table) in which information related to a program is described, an SDT (Service Description Table) in which information related to an organized channel (service) is described, such as an organized channel name and a broadcaster name.

  For example, the management information adding unit 16 includes information indicating the configuration of the currently broadcast program, the program to be broadcast next, the format of the service, and the program configuration information for one week.

  The program information includes a component descriptor, a component group descriptor, a 3D program detail descriptor, a service descriptor, a service list descriptor, and the like, which are constituent elements of the program information. These descriptors are described in tables such as PMT, EIT [schedule basic / schedule extended / present / following], NIT, and SDT.

  For example, the PMT and EIT tables are used only for the information on programs currently broadcasted, so that information on programs broadcast in the future cannot be confirmed. However, since the transmission cycle from the transmission side is short, the time until the reception is completed is short, and the reliability is high in the sense that the information is not changed because it is information on the currently broadcast program. On the other hand, for EIT [schedule basic / schedule extended], information up to 7 days ahead can be acquired in addition to the currently broadcasted program, but the time until the reception is completed because the transmission cycle from the transmission side is longer than the PMT. There is a demerit such as low reliability in the sense that it requires a long storage area and may be changed due to a future event. As for EIT [following], information on the program of the next broadcast time can be acquired.

  The program specific information PMT uses a table structure defined by ISO / IEC13818-1, and stream_type (stream format type) which is 8-bit information described in the 2nd loop (loop for each ES (Elementary Stream)). Thus, the ES format of the broadcast program can be indicated. In the embodiment of the present invention, the ES format is increased as compared with the prior art. For example, as shown in FIG.

  First, the base-view sub-bitstream (main viewpoint) of a multi-view video encoding (eg H.264 / MVC) stream is defined by the existing ITU-T recommendation H.264 | ISO / IEC 14496-10 video The same 0x1B as the AVC video stream is allocated. Next, a sub-bit stream (other viewpoint) of a multi-view video encoded stream (for example, H.264 MVC) that can be used for a 3D video program is assigned to 0x20.

  Also, the existing ITU-T recommendation for the H.262 (MPEG2) system base-view bitstream (main viewpoint) when using the "3D2 viewpoint-specific ES transmission system" that transmits multiple viewpoints of 3D video in separate streams. H.262 | ISO / IEC 13818-2 Assign 0x02 which is the same as video. Here, the H.262 (MPEG2) base-view bitstream (main viewpoint) when transmitting multiple viewpoints of 3D video in separate streams is only the video of the main viewpoint among the 3D video of multiple viewpoints. This is a stream encoded by the H.262 (MPEG2) system.

  Furthermore, a bit stream of another viewpoint of the H.262 (MPEG2) scheme when transmitting a plurality of viewpoints of 3D video in different streams is assigned to 0x21.

  In addition, a bit stream of another viewpoint bit stream of the AVC stream method specified by ITU-T recommendation H.264 | ISO / IEC 14496-10 video when multiple viewpoints of 3D video are transmitted in different streams is assigned to 0x22. .

  In this description, H.262 (MPEG2) in the case of assigning a sub-bit stream of a multi-view video encoded stream that can be used for a 3D video program to 0x20 and transmitting multiple viewpoints of 3D video in separate streams. The bit stream of the other viewpoint of the system is assigned to 0x21, and the AVC stream specified by the ITU-T recommendation H.264 | ISO / IEC 14496-10 video when transmitting the multiple viewpoints of 3D video as separate streams is set to 0x22 Although assigned, it may be assigned to any of 0x23 to 0x7E. Further, the MVC video stream is merely an example, and a video stream other than H.264 / MVC may be used as long as it represents a multi-view video encoded stream that can be used for a 3D video program.

  As described above, when the broadcaster on the transmission apparatus 1 side transmits (broadcasts) the 3D program by allocating the stream_type (stream format type) bit, in the embodiment of the present invention, for example, as shown in FIG. It is possible to transmit in such a stream combination.

  In combination example 1, a base-view sub-bit stream (main viewpoint) (stream format type 0x1B) of a multi-view video encoding (eg, H.264 / MVC) stream is transmitted as a main viewpoint (left-eye) video stream, Sub-viewpoint (for right eye) Another viewpoint sub-bit stream (stream format type 0x20) is transmitted as a multi-view video encoding (eg, H.264 / MVC) stream as a video stream.

  In this case, both the main-viewpoint (left-eye) video stream and the sub-viewpoint (right-eye) video stream use multi-viewpoint video encoding (eg, H.264 / MVC) format streams. The multi-view video encoding (eg, H.264 / MVC) method is a method for transmitting multi-view video in the first place, and can transmit a 3D program most efficiently among the combination examples in FIG. .

  Further, when 3D display (output) of a 3D program, the receiving apparatus processes both the main viewpoint (for left eye) video stream and the sub-viewpoint (for right eye) video stream to reproduce the 3D program. Is possible.

  When the receiving apparatus displays (outputs) a 3D program in 2D, it can display (output) as a 2D program by processing only the main-viewpoint (left-eye) video stream.

  Since the multi-view coding method H.264 / MVC base-view sub-bit stream and the existing H.264 / AVC (excluding MVC) video stream are compatible, both of them are as shown in FIG. By assigning the stream format type to the same 0x1B, the following effects are obtained. That is, even if a receiving device that does not have the function of 3D display (output) of a 3D program receives the 3D program of Combination Example 1, the video stream of the existing H.264 / AVC (excluding MVC) is received by the receiving device. As long as it has a function to display (output) (AVC video stream defined by ITU-T recommendation H.264 | ISO / IEC 14496-10 video), the main viewpoint of the program (for the left eye) based on the stream format type This is an effect that the video stream can be recognized as a stream similar to the existing H.264 / AVC (excluding MVC) video stream and displayed (output) as a normal 2D program.

  In addition, since the sub-viewpoint (for the right eye) video stream is assigned a stream format type that has not been used in the past, it is ignored by existing receivers. As a result, it is possible to prevent the substation (for the right eye) video stream from being unintentionally displayed (output) by the broadcasting station in the existing receiving apparatus.

  Therefore, even if the 3D program broadcast of Combination Example 1 is newly started, it is displayed (output) by an existing receiving device having a function of displaying (outputting) an existing H.264 / AVC (excluding MVC) video stream. ) You can avoid the situation that you can not. As a result, it is possible to view even a receiving device that does not support the 3D display (output) function, since the 3D program broadcast was newly started by broadcasting operated by advertising revenue such as CM (commercial message). By limiting the function of the device, it is possible to avoid a decrease in the audience rating, and there is a merit on the broadcasting station side.

  In combination example 2, an H.262 (MPEG2) base-view bit stream (main viewpoint) (stream format type 0x02) when transmitting multiple viewpoints of 3D video as separate streams as the main viewpoint (left-eye) video stream AVC stream (stream format specified by ITU-T recommendation H.264 | ISO / IEC 14496-10 video when transmitting multiple viewpoints of 3D video as separate video streams as sub-viewpoint (right-eye) video streams Type 0x22) is transmitted.

  As in the combination example 1, when 3D display (output) of a 3D program is performed, the receiving apparatus processes both the main viewpoint (left-eye) video stream and the sub-viewpoint (right-eye) video stream to perform 3D When a receiver can display (output) a 3D program in 2D, it can display (output) it as a 2D program by processing only the main-viewpoint (left-eye) video stream. It becomes.

  In addition, the H.262 (MPEG2) base-view bitstream (main viewpoint) when multiple viewpoints of 3D video are transmitted as separate streams is converted into the existing ITU-T recommendation H.262 | ISO / IEC 13818-2 video. The stream is compatible with the stream, and the stream format type of both is assigned to the same 0x1B as shown in Fig. 3 to display (output) the existing ITU-T recommendation H.262 | ISO / IEC 13818-2 video stream If the receiving device has a function to do this, even a receiving device that does not have a 3D display (output) function can display (output) it as a 2D program.

  Further, as in the combination example 1, the sub-viewpoint (for the right eye) video stream is assigned a stream format type that has not been conventionally used, and thus is ignored by existing receiving apparatuses. As a result, it is possible to prevent the substation (for the right eye) video stream from being unintentionally displayed (output) by the broadcasting station in the existing receiving apparatus.

  Receiving devices with a display (output) function for existing ITU-T Recommendation H.262 | ISO / IEC 13818-2 video streams are widely used. Therefore, it is possible to realize the most preferable broadcasting for the broadcasting station.

  Furthermore, the sub-viewpoint (for the right eye) is changed to the AVC stream (stream format type 0x22) defined by the ITU-T recommendation H.264 | ISO / IEC 14496-10 video as the sub-viewpoint (for the right eye). A video stream can be transmitted at a high compression rate.

  That is, according to the combination example 2, it is possible to achieve both the commercial merit of the broadcasting station and the technical merit of high-efficiency transmission.

  In combination example 3, an H.262 (MPEG2) base-view bit stream (main viewpoint) (stream format type 0x02) in the case of transmitting multiple viewpoints of 3D video as separate streams as the main viewpoint (left-eye) video stream And a bit stream (stream format type 0x21) of another viewpoint of the H.262 (MPEG2) system when transmitting a plurality of viewpoints of 3D video as separate streams as a sub-viewpoint (right eye) video stream.

  Also in this case, as in the combination example 3, if the receiving apparatus has a function of displaying (outputting) an existing ITU-T recommendation H.262 | ISO / IEC 13818-2 video stream, a 3D display (output) function It is possible to display (output) as a 2D program even in a receiving apparatus that does not have the.

  In addition to the commercial merits of the broadcast station, which further prevents a decrease in audience rating due to restrictions on the functions of the receiving device, the encoding method of the main viewpoint (left eye) video stream and the sub viewpoint (right eye) video stream is H. By unifying the 262 (MPEG2) system, the hardware configuration of the video decoding function in the receiving apparatus can be simplified.

  Note that, as in combination example 4, as the main viewpoint (left-eye) video stream, a multi-view video encoding (eg, H.264 / MVC) stream base-view sub-bit stream (main viewpoint) (stream format type 0x1B) And a bit stream (stream format type 0x21) of another viewpoint of the H.262 (MPEG2) system when transmitting multiple viewpoints of 3D video as separate streams as a sub-viewpoint (for the right eye) video stream Is also possible.

  47, instead of the base-view sub-bitstream (main viewpoint) (stream format type 0x1B) of the multi-view video coding (eg, H.264 / MVC) stream, the ITU-T recommendation H.264 | Similar effects can also be obtained as an AVC video stream (stream format type 0x1B) defined by ISO / IEC 14496-10 video.

  47, instead of the base view bit stream (main viewpoint) of the H.262 (MPEG2) method when transmitting multiple viewpoints of 3D video in separate streams, the ITU-T recommendation H.262 | ISO The same effect can be obtained with / IEC 13818-2 video stream (stream format type 0x1B).

  FIG. 4 shows an example of the structure of a component descriptor (Component Descriptor) which is one piece of program information. The component descriptor indicates the type of a component (element constituting a program. For example, video, audio, character, various data, etc.), and is also used for expressing an elementary stream in a character format. This descriptor is placed in the PMT and / or EIT.

  The meaning of the component descriptor is as follows. In other words, descriptor_tag is an 8-bit field and describes a value that can identify this descriptor as a component descriptor. descriptor_length is an 8-bit field and describes the size of this descriptor. The stream_content (component content) is a 4-bit field and represents a stream type (video, audio, data), and is encoded according to FIG. The component_type (component type) defines the type of component such as an 8-bit field, video, audio, and data, and is encoded according to FIG. The component_tag (component tag) is an 8-bit field. The component stream of the service can refer to the description content (FIG. 5) indicated by the component descriptor by this 8-bit field.

  In the program map section, the component tag value given to each stream should be different. The component tag is a label for identifying the component stream, and has the same value as the component tag in the stream identification descriptor (provided that the stream identification descriptor exists in the PMT). The 24-bit field of ISO_639_language_code (language code) identifies the language of the component (speech or data) and the language of the character description contained in this descriptor.

  The language code is represented by a three-letter code defined in ISO 639-2 (22). Each character is encoded with 8 bits according to ISO8859-1 (24) and inserted in the 24-bit field in that order. For example, Japanese is “jpn”, which is a three-letter code of the alphabet, and is encoded as follows. “0110 1010 0111 0000 0110 1110”. text_char (component description) is an 8-bit field. A series of component description fields define the character description of the component stream.

  FIGS. 5A to 5E show examples of stream_content (component content) and component_type (component type) that are components of the component descriptor. The component content 0x01 shown in FIG. 5A represents various video formats of a video stream compressed in the MPEG2 format.

  Component content 0x05 shown in FIG. 5B represents various video formats of a video stream compressed in the H.264 AVC format. Component content 0x06 shown in FIG. 5C represents various video formats of a 3D video stream compressed by multi-view video coding (for example, H.264 MVC format).

  Component content 0x07 shown in FIG. 5 (d) represents various video formats of 3D video Side-by-Side stream compressed in MPEG2 or H.264AVC format. In this example, the same component content value is used in MPEG2 and H.264 AVC format, but different values may be set in MPEG2 and H.264AVC.

  Component content 0x08 shown in FIG. 5 (e) represents various video formats of a 3D video Top-and-Bottom format stream compressed in MPEG2 or H.264AVC format. In this example, the same component content value is used in the MPEG2 and H.264AVC formats, but different values may be set in the MPEG2 and H.264AVC formats.

  As shown in FIG. 5 (d) and FIG. 5 (e), whether or not it is 3D video depending on the combination of stream_content (component content) and component_type (component type) that are components of the component descriptor. By adopting a configuration that shows a combination of resolution and aspect ratio, it is possible to transmit various types of video system information including 2D program / 3D program identification with a small transmission amount even in mixed 3D and 2D broadcasting. .

  In particular, using a coding method such as MPEG2 or H.264AVC (excluding MVC) that is not originally defined as a multi-view video coding method, the Side-by-Side format or the Top-and-Bottom format. When a 3D video program including a plurality of viewpoint images in one image is transmitted, only the above-described stream_type (stream format type) includes a plurality of viewpoint images in one image for the 3D video program. It is difficult to identify whether the image is transmitted or a normal image of one viewpoint. Therefore, in this case, identification of various video systems including 2D program / 3D program identification for the program may be performed by a combination of stream_content (component content) and component_type (component type). Also, by receiving component descriptors related to programs that are currently being broadcast or will be broadcast in the future by EIT, the receiver 4 creates an EPG (program guide) by acquiring the EIT, and as EPG information. It can be created whether it is 3D video, whether it is 3D video system, resolution, aspect ratio, 3D video. The receiving apparatus has an advantage that such information can be displayed (output) on the EPG.

  As described above, the receiver 4 monitors stream_content and component_type, so that it is possible to recognize that the currently received program or a future received program is a 3D program.

  FIG. 6 shows an example of the structure of a component group descriptor (Component Group Descriptor), which is one piece of program information. The component group descriptor defines and identifies the combination of components in the event. That is, grouping information of a plurality of components is described. This descriptor is placed in the EIT.

  The meaning of the component group descriptor is as follows. In other words, descriptor_tag is an 8-bit field, and a value that can identify this descriptor as a component group descriptor is described. descriptor_length is an 8-bit field and describes the size of this descriptor. component_group_type (component group type) is a 3-bit field and represents the group type of the component in accordance with FIG. Here, 001 represents a 3DTV service and is distinguished from 000 multi-view TV services. Here, the multi-view TV service is a TV service capable of switching and displaying a 2D video of a plurality of viewpoints for each viewpoint. For example, in a multi-view video encoded video stream or a stream of an encoding method that is not originally an encoding method defined as a multi-view video encoding method, a stream in which images of a plurality of viewpoints are transmitted in one screen May be used not only for 3D video programs but also for multi-view TV programs. In this case, even if a multi-view video is included in the stream, it may be impossible to identify whether the stream is a 3D video program or a multi-view TV program only by the above-described stream_type (stream format type). In such a case, identification by component_group_type (component group type) is effective. total_bit_rate_flag (total bit rate flag) is a 1-bit flag and indicates the description state of the total bit rate in the component group in the event. When this bit is “0”, it indicates that the total bit rate field in the component group does not exist in the descriptor. When this bit is “1”, it indicates that the total bit rate field in the component group exists in the descriptor. num_of_group (number of groups) is a 4-bit field and indicates the number of component groups in the event.

  component_group_id (component group identification) is a 4-bit field and describes the component group identification according to FIG. num_of_CA_unit (billing unit number) is a 4-bit field and indicates the number of billing / non-billing units in the component group. CA_unit_id (charging unit identification) is a 4-bit field and describes the charging unit identification to which the component belongs according to FIG.

  num_of_component (number of components) is a 4-bit field and indicates the number of components belonging to the component group and belonging to the billing / non-billing unit indicated by the immediately preceding CA_unit_id. component_tag (component tag) is an 8-bit field indicating the value of the component tag belonging to the component group.

  total_bit_rate (total bit rate) is an 8-bit field, and describes the total bit rate of the components in the component group by rounding up the transport stream packet transmission rate every 1/4 Mbps. text_length (component group description length) is an 8-bit field and represents the byte length of the subsequent component group description. text_char (component group description) is an 8-bit field. A series of character information fields describes a description about the component group.

  As described above, the monitoring of the component_group_type by the receiving device 4 has an effect of recognizing that a program that is currently received or that will be received in the future is a 3D program.

  Next, an example in which a new descriptor indicating information related to a 3D program is used will be described. FIG. 10A shows an example of the structure of a 3D program detail descriptor, which is one piece of program information. The 3D program detailed descriptor indicates detailed information when the program is a 3D program, and is used for determining a 3D program in the receiver. This descriptor is placed in the PMT and / or EIT. The 3D program detail descriptor may coexist with stream_content (component content and component_type (component type) for the 3D video program shown in FIGS. 5 (c) to 5 (e) already described. By transmitting the child, the stream_content (component content or component_type (component type)) for the 3D video program may not be transmitted. The meaning of the 3D program detail descriptor is as follows. In this field, a value (for example, 0xE1) that can distinguish this descriptor from the 3D program detail descriptor is described, and descriptor_length is an 8-bit field that describes the size of this descriptor.

3d_2d_type (3D / 2D type) is an 8-bit field and represents the type of 3D video / 2D video in the 3D program according to FIG. 10B. This field is information for identifying whether a 3D video or a 2D video in a 3D program in which the main part of the program is a 3D video and a commercial inserted in the middle of the program is composed of 2D video, for example. Yes, it is arranged for the purpose of preventing malfunction in the receiving apparatus (display (output) problem that occurs because the broadcast program is 2D video even though the receiving apparatus performs 3D processing). 0x01 represents 3D video, and 0x02 represents 2D video.
3d_method_type (3D method type) is an 8-bit field and represents a 3D method type according to FIG. 0x01 represents the “3D2 viewpoint-specific ES transmission scheme”, 0x02 represents the Side-by-Side scheme, and 0x03 represents the Top-and-Bottom scheme. The stream_type (stream format type) is an 8-bit field and indicates the ES format of the program according to FIG. 3 described above. The 3D program detail descriptor may be transmitted in the case of a 3D video program and not transmitted in a 2D video program. It is possible to identify whether the program is a 2D video program or a 3D video program only by transmitting or not transmitting the 3D program detail descriptor for the received program.

  The component_tag (component tag) is an 8-bit field. The component stream of the service can refer to the description content (FIG. 5) indicated by the component descriptor by this 8-bit field. In the program map section, the component tag value given to each stream should be different. The component tag is a label for identifying the component stream, and has the same value as the component tag in the stream identification descriptor (provided that the stream identification descriptor exists in the PMT).

  As described above, the receiving device 4 monitors the 3D program detail descriptor, and if this descriptor exists, there is an effect that it is possible to recognize that the program currently received or received in the future is a 3D program. In addition, when the program is a 3D program, the type of the 3D transmission method can be identified, and when 3D video and 2D video are mixed, the identification can be performed.

  Next, an example in which 3D video or 2D video is identified on a service (organization channel) basis will be described. FIG. 12 shows an example of the structure of a service descriptor (Service Descriptor) which is one piece of program information. The service descriptor represents the organization channel name and the business operator name together with the service format type by a character code. This descriptor is placed in the SDT.

  The meaning of the service descriptor is as follows. That is, service_type (service format type) is an 8-bit field and represents the type of service according to FIG. 0x01 represents a 3D video service. The 8-bit field of service_provider_name_length (operator name length) represents the byte length of the subsequent operator name. char (character code) is an 8-bit field. A series of character information fields represents a business name or a service name. The 8-bit field of service_name_length (service name length) represents the byte length of the subsequent service name.

  As described above, there is an effect that the reception device 4 can recognize that the service (organization channel) is a 3D program channel by monitoring service_type. In this way, if it is possible to identify whether a service (organization channel) is a 3D video service or a 2D video service, it is possible to display, for example, that the service is a 3D video program broadcast service by EPG display or the like. . However, even a service that broadcasts mainly 3D video programs may need to broadcast 2D video, such as when the source of advertisement video is only 2D video. Therefore, the identification of the 3D video service based on the service_type (service type type) of the service descriptor is the same as the identification of the 3D video program based on the combination of the stream_content (component content) and the component_type (component type) already described, and the component_group_type (component group type). 3D video program identification by 3) or 3D video program identification by 3D program detail descriptor is desirable. When a plurality of pieces of information are combined and identified, it is a 3D video broadcasting service, but it is also possible to identify that only some programs are 2D video. If such identification can be made, the receiving device, for example, EPG can clearly indicate that the service is a “3D video broadcasting service”, and the service includes a mixture of 2D video programs in addition to 3D video programs. Even when the program is received, the display control or the like can be switched as necessary between the 3D video program and the 2D video program.

  FIG. 14 shows an example of the structure of a service list descriptor (Service List Descriptor) which is one piece of program information. The service list descriptor provides a list of services according to service identification and service type. That is, a list of organization channels and their types is described. This descriptor is placed in the NIT.

  The meaning of the service list descriptor is as follows. That is, service_id (service identification) is a 16-bit field, and uniquely identifies the information service in the transport stream. The service identification is equal to the broadcast program number identification (program_number) in the corresponding program map section. The service_type (service type type) is an 8-bit field and represents the type of service according to FIG. 12 described above.

  Since it is possible to identify whether or not it is “3D video broadcasting service” by these service_type (service type type), for example, by using the list of organized channels and their types indicated in the service list descriptor, EPG In the display, it is possible to perform a display in which only “3D video broadcasting service” is grouped.

  As described above, there is an effect that the receiving device 4 can recognize that the organization channel is a channel of a 3D program by monitoring service_type.

  The examples of descriptors described above describe only representative members. Having other members, combining multiple members into one, and converting one member into multiple members with detailed information. Dividing is also conceivable.

<Examples of program information transmission operation rules>
The component descriptor, component group descriptor, 3D program detail descriptor, service descriptor, and service list descriptor of the program information described above are generated and added by the management information adding unit 16, for example, and the MPEG-TS PSI ( This is information that is stored in SI (eg, EIT, SDT, or NIT) and transmitted from the transmission apparatus 1 as an example.

An example of program information transmission operation rules in the transmission apparatus 1 will be described below.
FIG. 15 shows an example of a transmission operation rule in the component descriptor transmission apparatus 1. In “descriptor_tag”, “0x50” indicating a component descriptor is described. In “descriptor_length”, the descriptor length of the component descriptor is described. The maximum descriptor length is not specified. In “stream_content”, “0x01” (video) is described.

  In “component_type”, the video component type of the component is described. The component type is set from FIG. “Component_tag” describes a component tag value that is unique within the program. “ISO_639_language_code” describes “jpn (“ 0x6A706E ”)”.

  “Text_char” is described with a video type name of 16 bytes (8 full-width characters) or less when there are multiple video components. Do not use a line feed code. This field can be omitted if the component description is the default string. The default character string is “video”.

  It should be noted that at least one video component having a component_tag value of 0x00 to 0x0F included in the event (program) is always transmitted.

  As described above, when the transmission apparatus 1 performs the transmission operation, the reception apparatus 4 monitors the stream_content and the component_type, so that it is possible to recognize that the program currently received or received in the future is a 3D program.

  FIG. 16 shows an example of a transmission operation rule in the component group descriptor transmission apparatus 1.

  In “descriptor_tag”, “0xD9” indicating a component group descriptor is described. In “descriptor_length”, the descriptor length of the component group descriptor is described. The maximum descriptor length is not specified. “Component_group_type” indicates the type of component group. '000' indicates multi-view television and '001' indicates 3D television.

  In “total_bit_rate_flag”, if all the total bit rates in the group in the event are at the specified default value, set to “0”, and one of the total bit rates in the group in the event exceeds the specified default value. If it is present, it indicates '1'.

  “Num_of_group” describes the number of component groups in the event. The maximum is 3 for multi-view television (MVTV) and 2 for 3D television (3DTV).

  “Component_group_id” describes component group identification. In the case of the main group, “0x0” is assigned, and in the case of each subgroup, the broadcaster assigns it uniquely within the event.

  “Num_of_CA_unit” describes the number of charge / non-charge units in the component group. The maximum value is 2. Set to "0x1" if no component to be charged is included in the component group.

  “CA_unit_id” describes the charging unit identification. The broadcaster assigns it uniquely within the event. “Num_of_component” describes the number of components belonging to the component group and belonging to the billing / non-billing unit indicated by the immediately preceding “CA_unit_id”. The maximum value is 15.

  “Component_tag” describes a component tag value belonging to the component group. “Total_bit_rate” describes the total bit rate in the component group. However, “0x00” is described for the default value.

  “Text_length” describes the byte length of the subsequent component group description. The maximum value is 16 (8 full-width characters). “Text_char” always describes the description about the component group. No default string is specified. Also, no line feed code is used.

  When performing multi-view TV service, “component_group_type” is always transmitted as “000”. When performing 3D television service, “component_group_type” is always transmitted as “001”.

  By performing transmission operation in the transmission apparatus 1 in this way, there is an effect that the reception apparatus 4 can recognize that the program currently received or received in the future is a 3D program by monitoring component_group_type.

  FIG. 17 shows an example of a transmission operation rule in the transmission device 1 for the 3D program detail descriptor. In “descriptor_tag”, “0xE1” indicating a 3D program detail descriptor is described. In “descriptor_length”, the descriptor length of the 3D program detail descriptor is described. “3d_2d_type” describes 3D / 2D identification. It sets from FIG.10 (b). “3d_method_type” describes 3D method identification. The setting is made from FIG. “Stream_type” describes the ES format of the program. The setting is made from FIG. “Component_tag” describes a component tag value that is unique within the program.

  By performing transmission operation in the transmission apparatus 1 in this way, the reception apparatus 4 monitors the 3D program detail descriptor, and if this descriptor exists, a program that is currently received or will be received in the future is a 3D program. There is an effect that can be recognized.

  FIG. 18 shows an example of a transmission operation rule in the service descriptor transmission apparatus 1. In “descriptor_tag”, “0x48” indicating a service descriptor is described. In “descriptor_length”, the descriptor length of the service descriptor is described. “Service_type” describes the service type.

  The service format type is set from FIG. “Service_provider_name_length” describes the name of the operator in BS / CS digital television broadcasting. The maximum value is 20. Since service_provider_name is not used in terrestrial digital television broadcasting, describe “0x00”.

  “Char” describes an operator name in BS / CS digital television broadcasting. Maximum 10 characters. Nothing is described for digital terrestrial television broadcasting. “Service_name_length” describes the organization channel name length. The maximum value is 20. “Char” describes the organization channel name. It is within 20 bytes and within 10 full-width characters. Note that only one is always arranged for the target knitting channel.

  By performing transmission operation in the transmission apparatus 1 in this manner, there is an effect that the reception apparatus 4 can recognize that the organization channel is a 3D program channel by monitoring service_type.

  FIG. 19 shows an example of a transmission operation rule in the service list descriptor transmitting apparatus 1. In “descriptor_tag”, “0x41” indicating a service list descriptor is described. In “descriptor_length”, the descriptor length of the service list descriptor is described. “Loop” describes a loop of the number of services included in the target transport stream.

  “Service_id” describes service_id included in the transport stream. “Service_type” describes the service type of the target service. The setting is made from FIG. Note that this is always arranged for the TS loop in the NIT.

  By performing transmission operation in the transmission apparatus 1 in this manner, there is an effect that the reception apparatus 4 can recognize that the organization channel is a 3D program channel by monitoring service_type.

  As described above, the transmission example of the program information in the transmission apparatus 1 has been described. When the program is switched from the 2D program to the 3D program, on the first screen where the 3D program starts, for example, using a telop, the “3D program is started. “When viewing with 3D display, wearing 3D viewing glasses”, “Recommending viewing with 2D display when eyes are tired or unwell”, “3D program length For a user who views a 3D program on the receiving device 4 by inserting and sending it to the video of the 3D program created by the transmitting device 1 such as “viewing time may cause eyestrain or poor physical condition”. There is a merit that warning / warning for 3D program viewing can be performed.

<Hardware configuration of receiving device>
FIG. 25 is a hardware configuration diagram illustrating a configuration example of the receiving device 4 in the system of FIG. 21 is a CPU (Central Processing Unit) that controls the entire receiver, 22 is a general-purpose bus for transmitting control and information between the CPU 21 and each part in the receiver, 23 is a radio (satellite, ground), broadcast transmission such as a cable A broadcast signal transmitted from the transmission apparatus 1 is received via the network, a specific frequency is selected, demodulation, error correction processing, and the like are performed, and an MPEG2-Transport Stream (hereinafter also referred to as “TS”) or the like. A tuner that outputs multiplexed packets, 24 is a descrambler that decodes scrambled data by the scrambler 13, and 25 is a network I / F that transmits / receives information to / from the network and transmits / receives various information and MPEG2-TS between the Internet and the receiving device. Interface) 26 is, for example, an HDD (Hard Disk Drive), a flash memory, or a removable device built in the receiver 4. A recording medium 27 such as a DD, a disk-type recording medium, a flash memory, etc. 27 controls a recording medium 26, and a recording / reproducing unit 29 controls the recording of signals to the recording medium 26 and the reproduction of signals from the recording medium 26, It is a demultiplexing unit that demultiplexes signals multiplexed in a format such as MPEG2-TS into signals such as video ES (Elementary Stream), audio ES, and program information. An ES is each of compressed and encoded image / sound data. 30 is a video decoding unit that decodes the video ES into a video signal, 31 is an audio decoding unit that decodes the audio ES into an audio signal and outputs it to the speaker 48 or output from the audio output 42, and 32 is the video decoding unit 30. The decoded video signal is superposed on the video signal by processing to convert the 3D or 2D video signal into a predetermined format by a conversion process to be described later according to the instruction of the CPU, and the display such as OSD (On Screen Display) created by the CPU 21. The processed video signal is output to the display 47 or the video signal output unit 41, and the synchronization signal and control signal (used for device control) corresponding to the processed video signal format are output to the video signal output unit. 41 and a video conversion processing unit 33 output from the control signal output unit 43, 33 is an operation input (for example, IR (Infrared Radiation) Control signal transmission / reception for receiving a device control signal (for example, IR) to the external device generated by the CPU 21 or the video conversion processing unit 32 from the device control signal transmission unit 44. , 34 has a counter inside and a timer for holding the current time, 46 performs necessary processing such as encryption on the TS reconfigured by the demultiplexing unit, and outputs the TS to the outside, or A high-speed digital I / F such as a serial interface or an IP interface that decodes TS received from the outside and inputs it to the demultiplexing unit 29, 47 is decoded by the video decoding unit 30, and video is converted by the video conversion processing unit 32 Display for displaying 3D video and 2D video, 48 is a speaker for outputting sound based on the audio signal decoded by the audio decoding unit The receiving device 4 is mainly composed of these devices. In the case of 3D display on the display, if necessary, the synchronization signal and the control signal are output from the control signal output unit 43 and the device control signal transmission terminal 44.

  Examples of the system configuration including the receiving device, the viewing device, and the 3D viewing assistance device (for example, 3D glasses) are shown in FIG. 35 and FIG. FIG. 35 shows a system configuration in which the receiving device and the viewing device are integrated, and FIG. 36 shows an example in which the receiving device and the viewing device are configured separately.

  In FIG. 35, 3501 is a display device including the configuration of the receiving device 4 and capable of 3D video display and audio output, 3503 is a 3D viewing assist device control signal (for example, IR signal) output from the display device 3501, and 3502 is 3D shows a 3D viewing assistance device. In the example of FIG. 35, the video signal is displayed from a video display included in the display device 3501, and the audio signal is output from a speaker included in the display device 3501. Similarly, the display device 3501 includes an output terminal that outputs a 3D viewing assist device control signal output from the device control signal 44 or the output portion of the control signal 43.

  The above description has been made on the assumption that the display device 3501 and the 3D viewing assistance device 3502 shown in FIG. 35 perform display by an active shutter method to be described later, but the display device 3501 and the 3D viewing assistance device shown in FIG. In the case of a method of performing a 3D video display device by polarization separation, which will be described later, the 3D viewing assistance device 3502 only needs to perform polarization separation so that different images are incident on the left eye and the right eye, and the display device 3501. Therefore, the 3D viewing assist device control signal 3503 that is output to the 3D viewing assist device 3502 from the output unit of the device control signal 44 or the control signal 43 may not be output.

  In FIG. 36, 3601 is a video / audio output device including the configuration of the receiving device 4, 3602 is a transmission path (for example, HDMI cable) for transmitting video / audio / control signals, 3603 is a video signal input from the outside, Represents a display that displays and outputs audio signals.

  In this case, the video signal output from the video output 41 of the video / audio output device 3601 (reception device 4), the audio signal output from the audio output 42, and the control signal output from the control signal output unit 43 are transmitted through the transmission path 3602. Is converted into a transmission signal in a format suitable for the format specified in (for example, a format specified by the HDMI standard), and input to the display 3603 via the transmission path 3602. The display 3603 receives the transmission signal, decodes it to the original video signal, audio signal, and control signal, outputs video and audio, and outputs a 3D viewing assist device control signal 3503 to the 3D viewing assist device 3502. To do.

  The above description has been made on the assumption that the display device 3603 and the 3D viewing assistance device 3502 shown in FIG. 36 display by an active shutter method described later, but the display device 3603 and the 3D viewing assistance device shown in FIG. In the case of a method of performing a 3D video display device by polarization separation, which will be described later, the 3D viewing assistance device 3502 only needs to perform polarization separation so that different images are incident on the left eye and the right eye, and the display device 3603. 3D viewing assist device control signal 3603 does not have to be output from 3D to 3D viewing assist device 3502.

  A part of each of the constituent elements 21 to 46 shown in FIG. 25 may be composed of one or a plurality of LSIs. Moreover, it is good also as a structure which implement | achieves a part of function of each structural requirement of 21-46 shown in FIG. 25 with software.

<Functional block diagram of receiver>
FIG. 26 is an example of a functional block configuration of processing inside the CPU 21. Here, each functional block exists, for example, as a software module executed by the CPU 21, and some means (for example, message passing, function call, event transmission) is performed between each module to exchange and control information and data. Give instructions.

  Each module also transmits / receives information to / from hardware in the receiving device 4 via the general-purpose bus 22. Moreover, although the relationship line (arrow) described in the figure mainly describes the part related to this explanation, there is a communication means and a process that requires communication between other modules. For example, the channel selection control unit 59 appropriately acquires program information necessary for channel selection from the program information analysis unit 54.

  Next, the function of each functional block will be described. The system control unit 51 manages the state of each module, the user instruction state, and the like, and issues a control instruction to each module. The user instruction receiving unit 52 receives and interprets a user operation input signal received by the control signal transmitting / receiving unit 33 and transmits the user instruction to the system control unit 51. The device control signal transmission unit 53 instructs the control signal transmission / reception unit 33 to transmit a device control signal in accordance with instructions from the system control unit 51 and other modules.

  The program information analysis unit 54 acquires program information from the demultiplexing unit 29, analyzes the contents, and provides necessary information to each module. The time management unit 55 acquires time correction information (TOT: Time offset table) included in the TS from the program information analysis unit 54 and manages the current time, and uses the counter of the timer 34 to An alarm (notification of the arrival of a specified time) and a one-shot timer (notification of the elapse of a certain time) are performed as requested.

  The network control unit 56 controls the network I / F 25 and acquires various information and TS from a specific URL (Unique Resource Locater) or a specific IP (Internet Protocol) address. The decoding control unit 57 controls the video decoding unit 30 and the audio decoding unit 31 to start and stop decoding and acquire information included in the stream.

  The recording / playback control unit 58 controls the recording / playback unit 27 to read a signal from the recording medium 26 from a specific position of a specific content and in any reading format (normal playback, fast forward, rewind, pause). . Further, control is performed to record the signal input to the recording / reproducing unit 27 on the recording medium 26.

  The channel selection control unit 59 controls the tuner 23, the descrambler 24, the demultiplexing unit 29, and the decoding control unit 57 to receive broadcasts and record broadcast signals. Alternatively, control is performed until reproduction from the recording medium and output of the video signal and the audio signal. Detailed broadcast reception operation, broadcast signal recording operation, and reproduction operation from the recording medium will be described later.

  The OSD creation unit 60 creates OSD data including a specific message, and instructs the video conversion control unit 61 to superimpose the created OSD data on the video signal and output it. Here, the OSD creation unit 60 creates parallax OSD data for left eye and right eye, and requests the video conversion control unit 61 to perform 3D display based on the left-eye and right-eye OSD data. As a result, message display in 3D is performed.

  The video conversion control unit 61 controls the video conversion processing unit 32 to convert the video signal input from the video decoding unit 30 to the video conversion processing unit 32 into 3D or 2D video according to an instruction from the system control unit 51. The converted video and the OSD input from the OSD creation unit 60 are superimposed, and the video is further processed as necessary (scaling, PinP, 3D display, etc.) and displayed on the display 47 or output to the outside. Details of a method for converting 3D video and 2D video into a predetermined format in the video conversion processing unit 32 will be described later. Each functional block provides these functions.

<Broadcast reception>
Here, a control procedure and a signal flow when performing broadcast reception will be described. First, the system control unit 51 that has received a user instruction (for example, pressing the CH button on the remote controller) indicating broadcast reception of a specific channel (CH) from the user instruction receiving unit 52 uses the CH (hereinafter designated CH) designated by the user. The channel selection control unit 59 is instructed to select a channel.

  Upon receiving the instruction, the channel selection control unit 59 instructs the tuner 23 to perform reception control of the designated CH (tuning to the designated frequency band, broadcast signal demodulation processing, error correction processing), and sends the TS to the descrambler 24. Output.

  Next, the channel selection control unit 59 instructs the descrambler 24 to descramble the TS and output it to the demultiplexing unit 29. The demultiplexing unit 29 receives the demultiplexing of the input TS, In addition, an instruction to output the demultiplexed video ES to the video decoding unit 30 and to output the audio ES to the audio decoding unit 31 is given.

  Further, the channel selection control unit 59 instructs the decoding control unit 57 to decode the video ES and the audio ES input to the video decoding unit 30 and the audio decoding unit 31. Upon receiving the decoding instruction, the decoding control unit 31 controls the video decoding unit 30 to output the decoded video signal to the video conversion processing unit 32, and the audio decoding unit 31 receives the decoded audio signal from the speaker. 48 or the audio output 42 is controlled. In this way, control is performed to output the video and audio of the CH designated by the user.

  Further, in order to display a CH banner (OSD for displaying a CH number, program name, program information, etc.) at the time of channel selection, the system control unit 51 instructs the OSD creation unit 60 to create and output a CH banner. . The OSD creation unit 60 that has received the instruction transmits the created CH banner data to the video conversion control unit 61, and the video conversion control unit 61 that has received the data outputs the CH banner superimposed on the video signal. To control. In this way, a message is displayed at the time of channel selection.

<Recording of broadcast signal>
Next, broadcast signal recording control and signal flow will be described. When recording a specific CH, the system control unit 51 instructs the channel selection control unit 59 to select a specific CH and output a signal to the recording / reproducing unit 27.

  The channel selection control unit 59 that has received the instruction instructs the tuner 23 to receive the designated channel and controls the descrambler 24 of the MPEG2-TS received from the tuner 23 in the same manner as the broadcast reception process. The descrambling / demultiplexing unit 29 is controlled to output the input from the descrambler 24 to the recording / reproducing unit 27.

In addition, the system control unit 51 instructs the recording / playback control unit 58 to record the input TS to the recording / playback unit 27. Receiving the instruction, the recording / playback control unit 58 performs necessary processing such as encryption on the signal (TS) input to the recording / playback unit 27, and also adds additional information (recording CH of the recording CH) required for recording / playback Program information, bit rate and other content information), and management data (recorded content ID, recording position on recording medium 26, recording format, encrypted information, etc.), and then the MPEG2-TS In addition, a process of writing additional information and management data to the recording medium 26 is performed. In this way, the broadcast signal is recorded.

<Reproduction from recording media>
Next, playback processing from a recording medium will be described. When reproducing a specific program, the system control unit 51 instructs the recording / reproduction control unit 58 to reproduce the specific program. As an instruction at this time, the content ID and the reproduction start position (for example, the beginning of the program, the position of 10 minutes from the beginning, the continuation of the previous time, the position of 100 Mbyte from the beginning, etc.) are instructed. The recording / playback control unit 58 that has received the instruction controls the recording / playback unit 27 to read out a signal (TS) from the recording medium 26 using additional information and management data, and perform necessary processing such as decryption of encryption. After that, processing is performed to output TS to the demultiplexing unit 29.

  In addition, the system control unit 51 instructs the channel selection control unit 59 to output the video and audio of the reproduction signal. The channel selection control unit 59 that has received the instruction performs control so that the input from the recording / reproducing unit 27 is output to the demultiplexing unit 29, and the demultiplexing unit 29 performs demultiplexing and demultiplexing of the input TS. The output of the separated video ES to the video decoding unit 30 and the output of the demultiplexed audio ES to the audio decoding unit 31 are instructed.

  Further, the channel selection control unit 59 instructs the decoding control unit 57 to decode the video ES and the audio ES input to the video decoding unit 30 and the audio decoding unit 31. Upon receiving the decoding instruction, the decoding control unit 31 controls the video decoding unit 30 to output the decoded video signal to the video conversion processing unit 32, and the audio decoding unit 31 receives the decoded audio signal from the speaker. 48 or the audio output 42 is controlled. In this way, signal reproduction processing from the recording medium is performed.

<3D video display method>
As a 3D video display method that can be used in the present invention, left and right eye images that make the left and right eyes feel parallax are created, and a human being recognizes that a three-dimensional object exists. There is a method.

  As one method, the glasses worn by the user are shielded from light by the left and right glasses alternately using a liquid crystal shutter, etc., and the left and right eye images are displayed in synchronization with the glasses. There is an active shutter system that generates parallax in an image displayed on the screen.

  In this case, the receiving device 4 outputs a synchronization signal and a control signal from the control signal output unit 43 and the device control signal transmission terminal 44 to the active shutter glasses worn by the user. Further, the video signal is output from the video signal output unit 41 to an external 3D video display device, and the left-eye video and the right-eye video are alternately displayed. Alternatively, the same 3D display is performed on the display 47 of the receiving device 4. In this way, a user wearing active shutter glasses can view 3D video on the display 47 of the 3D video display device or the receiving device 4.

  As another method, for the glasses worn by the user, a film orthogonal to the linearly polarized light is applied to the left and right glasses, or a linearly polarized coating is applied, or a circularly polarized film with the rotation direction of the polarization axis reversed. Or apply a circularly polarized coat, and simultaneously output the image for the left eye and the image for the right eye with different polarizations corresponding to the polarization of the glasses for the left eye and the right eye respectively. There is a polarization method that generates parallax between the left eye and the right eye by separating them according to the polarization state.

  In this case, the receiving device 4 outputs a video signal from the video signal output unit 41 to an external 3D video display device, and the 3D video display device converts the left-eye video and the right-eye video in different polarization states. Display. Alternatively, the same display is performed on the display 47 of the receiving device 4. In this way, a user wearing polarized glasses can view 3D video on the display 47 of the 3D video display device or the receiving device 4. In the polarization method, since it is possible to view 3D images without transmitting a synchronization signal or a control signal from the receiving device 4 to the polarization method glasses, it is synchronized from the control signal output unit 43 or the device control signal transmission terminal 44. There is no need to output signals or control signals.

  In addition, a color separation method that separates the left and right eye images by color may be used. Alternatively, a parallax barrier method that creates a 3D image using a parallax barrier that can be viewed with the naked eye may be used.

  The 3D display method according to the present invention is not limited to a specific method.

<Example of specific determination method of 3D program using program information>
As an example of a 3D program determination method, information for determining whether or not a 3D program is newly included is obtained from various tables and descriptors included in the program information of the broadcast signal and the reproduction signal described above. It is possible to determine whether or not.

  Check the information to determine whether the 3D program is newly included in the component descriptor or component group descriptor described in the table such as PMT and EIT [schedule basic / schedule extended / present / following]. Or 3D program details descriptor, which is a new descriptor for 3D program determination, is newly included in the service descriptor, service list descriptor, etc. described in tables such as NIT and SDT It is determined whether or not it is a 3D program by checking information for determining whether or not it is a 3D program. These pieces of information are added to the broadcast signal in the transmission device described above and transmitted. In the transmission device, for example, the management information adding unit 16 adds these pieces of information to the broadcast signal.

  The use of each table is characterized in that, for example, only information on the current program is described for PMT, so information on future programs cannot be confirmed, but the reliability is high. On the other hand, for EIT [schedule basic / schedule extended], information on future programs as well as current programs can be acquired, but it takes a long time to complete reception, requires a large storage area, and is a future event. There are disadvantages such as low reliability. As for EIT [following], it is possible to obtain information on a program at the next broadcast time, and therefore it is suitable for application to the present embodiment. Further, EIT [present] can be used to obtain current program information, and information different from PMT can be obtained.

  Next, a detailed example of processing of the receiving device 4 related to the program information described in FIGS. 4, 6, 10, 12, and 14 sent from the transmitting device 1 will be described.

  FIG. 20 shows an example of processing for each field of the component descriptor in the receiving device 4.

  If “descriptor_tag” is “0x50”, it is determined that the descriptor is a component descriptor. Based on “descriptor_length”, it is determined to be the descriptor length of the component descriptor. If “stream_content” is “0x01”, “0x05”, “0x06”, “0x07”, it is determined that the descriptor is valid (video). In cases other than “0x01”, “0x05”, “0x06”, and “0x07”, it is determined that the descriptor is invalid. When “stream_content” is “0x01”, “0x05”, “0x06”, “0x07”, the following processing is performed.

  “Component_type” is determined as the video component type of the component. For this component type, one of the values in FIG. 5 is designated. From this content, it can be determined whether or not the component is a component for a 3D video program.

  “Component_tag” is a component tag value that is unique within the program, and can be used in association with the component tag value of the PMT stream identifier.

  “ISO_639_language_code” identifies the language of the component and the language of the character description included in this descriptor. For example, if the value is “jpn (“ 0x6A706E ”)”, the character code arranged later is handled as “jpn” (Japanese).

  “Text_char” is determined to be a component description within 16 bytes (8 full-width characters). If this field is omitted, it is determined as the default component description. The default character string is “video”.

  As described above, the component descriptor can determine the type of video component constituting the event (program), and the component description can be used when selecting the video component in the receiver.

  Note that only video components whose component_tag value is set to a value between 0x00 and 0x0F are to be selected independently. A video component set with a component_tag value other than the above is not a single selection target, and a target for a component selection function or the like.

  In addition, the component description may not match the actual component due to a mode change during an event (program). (The component descriptor's component_type describes the representative component type of the component, and this value is not changed in real time in response to a mode change during the program). The component_type described by the component descriptor is the default when the digital copy control descriptor, which is a description of the information for controlling the copy generation in the digital recording device and the maximum transmission rate, is omitted for the event (program). It is referred to when determining the maximum_bit_rate.

  In this way, by performing processing for each field of this descriptor in the receiving device 4, the receiving device 4 monitors the stream_content and component_type, so that the program currently received or received in the future is a 3D program. There is an effect that can be recognized.

  FIG. 21 shows an example of processing for each field of the component group descriptor in the receiving device 4.

  If “descriptor_tag” is “0xD9”, it is determined that the descriptor is a component group descriptor. Based on “descriptor_length”, it is determined to be the descriptor length of the component group descriptor.

  When “component_group_type” is “000”, it is determined as a multi-view TV service, and when it is “001”, it is determined as a 3D TV service.

  When “total_bit_rate_flag” is “0”, it is determined that the total bit rate in the group in the event (program) is not described in the descriptor. If “1”, it is determined that the total bit rate in the group in the event (program) is described in the descriptor.

  “Num_of_group” is determined as the number of component groups in the event (program). If the maximum value exists and exceeds this value, it may be processed as the maximum value. If “component_group_id” is “0x0”, it is determined as the main group. If it is not “0x0”, it is determined as a subgroup.

  “Num_of_CA_unit” is determined as the number of billing / non-billing units in the component group. If the maximum value is exceeded, it may be processed as 2.

  If “CA_unit_id” is “0x0”, it is determined as a non-billing unit group. If it is “0x1”, it is determined as a charging unit including the default ES group. If it is other than “0x0” and “0x1”, it is determined that the charging unit is not identified above.

  “Num_of_component” is determined to be the number of components belonging to the component group and belonging to the billing / non-billing unit indicated by the immediately preceding CA_unit_id. If it exceeds the maximum value, it may be processed as 15.

  “Component_tag” is determined to be a component tag value belonging to the component group, and can be used in correspondence with the component tag value of the PMT stream identifier. “Total_bit_rate” is determined as the total bit rate in the component group. However, when it is “0x00”, it is determined as the default.

  If “text_length” is 16 (8 full-width characters) or less, it is determined as the component group description length. If it is greater than 16 (8 full-width characters), the description for the component group description length exceeding 16 (8 full-width characters) is You can ignore it.

  “Text_char” indicates an explanatory text related to the component group. Note that the arrangement of the component group descriptor of component_group_type = '000' determines that the multi-view TV service is to be performed in the event (program), and can be used for processing for each component group.

  Further, the arrangement of the component group descriptor of component_group_type = '001' makes it possible to determine that a 3D television service is to be performed in the event (program) and use it for processing for each component group.

  Furthermore, the default ES group of each group is always described in the component loop arranged at the head of the CA_unit loop.

In the main group (component_group_id = 0x0)
・ If the group's default ES group is non-chargeable, set free_CA_mode = 0 and do not set a component loop with CA_unit_id = 0x1.
-If the default ES group of the group is the object of billing, set free_CA_mode = 1 and be sure to set and describe the component loop with CA_unit_id = "0x1".
In the subgroup (component_group_id> 0x0)
-Only the same charging unit as the main group or a non-charging unit can be set for the sub group.
-If the default ES group of the group is a non-billing target, set and describe a component loop with CA_unit_id = 0x0.
・ If the group's default ES group is a chargeable target, set and describe a component loop with CA_unit_id = 0x1.

  In this way, by performing processing for each field of this descriptor in the receiving device 4, the receiving device 4 monitors the component_group_type, so that a program that is currently received or that will be received in the future is a 3D program. There is a recognizable effect.

  FIG. 22 shows an example of processing for each field of the 3D program detail descriptor in the receiving device 4.

  If “descriptor_tag” is “0xE1”, it is determined that the descriptor is a 3D program detail descriptor. Based on “descriptor_length”, the descriptor length of the 3D program detail descriptor is determined. “3d_2d_type” is determined to be 3D / 2D identification in the 3D program. It is specified from FIG. “3d_method_type” is determined to be 3D method identification in the 3D program. It is specified from FIG.

  “Stream_type” is determined to be the ES format of the 3D program. It is specified from FIG. “Component_tag” is determined to be a component tag value that is unique within the 3D program. It can be used in correspondence with the component tag value of the PMT stream identifier.

  Note that it may be configured to determine whether or not the program is a 3D video program based on the presence or absence of the 3D program detail descriptor itself. That is, in this case, if there is no 3D program detailed descriptor, it is determined as a 2D video program, and if there is a 3D program detailed descriptor, it is determined as a 3D video program.

  In this way, by performing processing for each field of this descriptor in the receiving device 4, the receiving device 4 monitors the 3D program detail descriptor, and if this descriptor exists, it is currently received. Alternatively, it is possible to recognize that a program to be received in the future is a 3D program.

  FIG. 23 shows an example of processing for each field of the service descriptor in the receiving device 4. If “descriptor_tag” is “0x48”, it is determined that the descriptor is a service descriptor. Based on “descriptor_length”, it is determined to be the descriptor length of the service descriptor. If “service_type” is other than the service_type shown in FIG. 13, the descriptor is determined to be invalid.

  When “service_provider_name_length” is 20 or less in the case of reception of BS / CS digital television broadcasts, it is determined that the name of the operator is greater than 20, and if it is greater than 20, the operator name is determined to be invalid. On the other hand, in the case of reception of digital terrestrial television broadcasting, it is determined that anything other than “0x00” is invalid.

  In the case of receiving BS / CS digital television broadcasting, “char” is determined to be a business name. On the other hand, in the case of receiving terrestrial digital television broadcasting, the description is ignored. If “service_name_length” is 20 or less, it is determined as the composition channel name length, and if it is greater than 20, the composition channel name is determined to be invalid.

  “Char” is determined as the organization channel name. If the SDT in which the descriptor is arranged cannot be received according to the example of the transmission operation rule described with reference to FIG. 18, it is determined that the basic information of the target service is invalid.

  Thus, by performing processing for each field of this descriptor in the receiving device 4, there is an effect that the receiving device 4 can recognize that the organization channel is a 3D program channel by monitoring service_type.

  FIG. 24 shows an example of processing for each field of the service list descriptor in the receiving device 4. If “descriptor_tag” is “0x41”, it is determined that the descriptor is a service list descriptor. Based on “descriptor_length”, it is determined that it is the descriptor length of the service list descriptor.

  “Loop” describes a loop of the number of services included in the target transport stream. “Service_id” is determined to be service_id for the transport stream. “Service_type” indicates the service type of the target service. It is determined that the service types other than those specified in FIG. 13 are invalid.

  As described above, the service list descriptor can be determined as information on the transport stream included in the target network.

  Thus, by performing processing for each field of this descriptor in the receiving device 4, there is an effect that the receiving device 4 can recognize that the organization channel is a 3D program channel by monitoring service_type.

  Next, specific descriptors in each table will be described. First, the ES format can be determined as described with reference to FIG. 3 according to the data type in the stream_type described in the 2nd loop of PMT (loop for each ES). If there is a description indicating that the stream is 3D video, the program is determined to be a 3D program (for example, multi-view video encoding (eg, H.264 / MVC) stream sub-type in stream_type) If there is 0x1F indicating a stream (other viewpoint), the program is determined to be a 3D program.

  In addition to stream_type, it is also possible to newly assign a 3D program or a 2D / 3D identification bit for identifying a 2D program to an area that is currently reserved in the PMT, and make a determination based on the area.

  Similarly, EIT can be determined by newly assigning a 2D / 3D identification bit to the reserved area.

When a 3D program is determined by a component descriptor arranged in the PMT and / or EIT, a type indicating 3D video is assigned to component_type of the component descriptor as described in FIGS. 4 and 5 (for example, FIG. 5). (C) to (e)) If there is a component_type representing 3D, it is possible to determine that the program is a 3D program. (For example, assign FIGS. 5C to 5E and confirm that the value exists in the program information of the target program.)
As described above with reference to FIGS. 6 and 7, as a determination method using the component group descriptor arranged in the EIT, a description representing 3D service is assigned to the value of component_group_type, and the value of component_group_type represents 3D service. 3D program can be discriminated (for example, 001 in the bit field assigns a 3D TV service or the like, and confirms that the value exists in the program information of the target program).
As a determination method using the 3D program detail descriptor arranged in the PMT and / or EIT, as described in FIGS. 10 and 11, when determining whether the target program is a 3D program, the 3D program detail descriptor It can be determined by the content of 3d_2d_type (3D / 2D type). If no 3D program detail descriptor is transmitted for the received program, it is determined to be a 2D program. In addition, if the receiving apparatus is compatible with the 3D method type (3d_method_type) included in the descriptor, a method of determining the next program as a 3D program is also conceivable. In this case, although the descriptor analysis process is complicated, it is possible to stop the operation for performing the message display process and the recording process for the 3D program that cannot be handled by the receiving apparatus.

  As described with reference to FIGS. 12, 13, and 14, a 3D video service is assigned to 0x01 in the service_type information included in the service descriptor arranged in the SDT and the service list descriptor arranged in the NIT. When certain program information is acquired, it can be determined as a 3D program. In this case, the determination is not made in units of programs, but in units of services (CHs, organization channels), and 3D program determination of the next program in the same organization channel cannot be made, but information acquisition is not in units of programs. There is also an advantage such as easy.

  There is also a method of acquiring program information through a dedicated communication channel (broadcast signal or the Internet). Even in this case, if there is a program start time, CH (broadcast organization channel, URL or IP address), and an identifier indicating whether the program is a 3D program, the 3D program determination is possible.

  In the above description, various information (information included in tables and descriptors) for determining whether or not a 3D video is a service (CH) or a program unit has been described. There is no need. What is necessary is just to transmit required information according to a broadcast form. Of these pieces of information, each piece of information may be checked to determine whether it is a 3D video for each service (CH) or program, or a combination of multiple pieces of information for 3D for each service (CH) or program. You may determine whether it is an image | video. When determining by combining a plurality of pieces of information, it is a 3D video broadcasting service, but it is also possible to determine that only some programs are 2D video. If such a determination can be made, the receiving device, for example, EPG can clearly indicate that the service is a “3D video broadcasting service”, and the service includes a mixture of 2D video programs in addition to 3D video programs. Even when the program is received, the display control or the like can be switched between the 3D video program and the 2D video program.

  When the 3D program is determined to be a 3D program by the above-described 3D program determination method, for example, the 3D component specified in FIGS. 5C to 5E is appropriately processed (displayed and output) by the receiving device 4. If it can be processed in 3D (playback, display, output), and cannot be properly processed (playback, display, output) in the receiving device 4 (for example, it corresponds to the specified 3D transmission method) For example, when there is no 3D video playback function to be performed), processing (playback, display, output) may be performed in 2D. At this time, along with the display and output of the 2D video, it may be displayed that the 3D video program cannot be appropriately 3D displayed or 3D output by the receiving apparatus.

  FIG. 50 shows a message display example in this case. Reference numeral 701 denotes an example of an entire screen displayed or output by the apparatus, and reference numeral 5001 denotes an example of a message indicating to the user that the receiving apparatus 4 is a 3D system type that cannot be processed. The message 5001 may display an error code indicating an error type, a 3D method type (for example, a value of 3d_method_type), and a value obtained by combining them. As a result, there is a merit that the user can determine the situation inside the receiving apparatus.

  An example of the processing flow of the system control unit 51 when displaying an error message in this way will be described with reference to FIG. The system control unit 51 acquires program information of the current program from the program information analysis unit 54 (S201), and determines whether or not the current program is a 3D program by the above-described 3D program determination method. When the current program is not a 3D program (No in S202), no particular processing is performed. If the current program is a 3D program (Yes in S202), it is next checked whether the receiving apparatus supports the 3D system type of the current program (S802). Specifically, there is a method of determining whether the 3D method type (for example, 3d_method_type described in the 3D program details descriptor) included in the program information is a value representing the 3D method supported by the receiving device 4 or the like. . The corresponding 3D method type value may be stored in advance in the storage unit of the receiving device 4 and used for the determination. As a result of the determination, in the case of the 3D system type supported by the receiving apparatus (yes in S802), no message display or the like is particularly performed. If the 3D system type is not supported by the receiving device (no in S802), a message that does not support the device is displayed as shown in FIG. 49 (S803).

  In this way, the user needs to know whether the program is broadcast as a 2D video program or is a program broadcast as a 3D video program, but the 2D video is displayed because it cannot be properly processed by the receiving device. Can do.

<Example of electronic program guide display and screen display of 3D program>
FIG. 48 shows a display example of an electronic program guide including 3D programs. The electronic program guide is composed mainly of program information included in the EIT that is multiplexed and transmitted to the broadcast signal, but other than that, program information data transmission in the original multiplexing system in broadcasting, or via the Internet You may also send program information at. The information used in the electronic program guide includes the program name, broadcast start time, broadcast period, and other detailed information about the program (performers, directors, information on video and audio decoding, series 48), and an electronic program guide as shown in FIG. 48 is constructed based on these pieces of information. The EIT is transmitted not only for the currently broadcasted program but also for the future broadcasted program. That is, the receiving apparatus can perform display processing such as the following electronic program guide using information included in the EIT for the currently received program and the future received program.

  In the figure, reference numeral 701 denotes the entire screen displayed or output by the apparatus, 4801 denotes the entire electronic program guide presented on the screen, the horizontal axis represents service (CH: channel), and the vertical axis represents time. In this example, electronic program guides from 7:00 to 12:00 for services 1CH, 3CH, 4CH, and 6CH are displayed. When displaying the electronic program guide, only the electronic program guide may be displayed without playing the currently received program. Alternatively, the electronic program guide may be displayed superimposed on the video of the currently received program. In the receiving apparatus of FIG. 25, these processes may be performed by the video conversion processing unit 32 under the control of the CPU 21 (system control unit 51, OSD creation unit 60).

  In this example, when an event (program) included in the electronic program guide data (for example, EIT) includes a 3D program determined by the above method (for example, in the example of FIG. 48, 8 in 3CH). : A program represented by a rectangle displayed at 10:00 to 10:00), a mark such as 4802 (hereinafter referred to as a 3D program mark), for example, which indicates that the program is a 3D program, is given to the program. Is displayed within a range that is known to be present (for example, within a rectangular range representing a program, or within a specified range around the rectangle). In this way, the user can easily recognize which program is a 3D program in the electronic program guide.

  Here, as a display method of the 3D program mark, in addition to the display example of 4802, for example, the 3D method type of the program is acquired from the information of the 3d_method_type as in 4803, and the character or mark indicating the 3D broadcast method is obtained. May be displayed. In the case of this example, an example is shown in which a mark “MVC” representing the multi-view coding method is displayed. In this case, the user can easily determine from the electronic program guide whether the program is a 3D program and what type of 3D system is being broadcast.

  As another display method, when the 3D method type acquired from the 3d_method_type is not supported by the receiving device as in the example of 4804, a mark indicating non-correspondence (for example, “X” in the figure) and the display color are displayed. If the program is a 3D system type that the receiving device supports, such as changing the display (shading in the figure or changing the color of the electronic program display area to gray, etc.) A method of changing the display contents depending on whether the 3D system type of the program is supported by the receiving device, such as a mark indicating the correspondence (for example, “◯” is displayed instead of the display position of × in the figure). Can be considered. In this way, the user can easily recognize whether the program is a 3D system type program supported by the receiving apparatus.

  In addition, by combining these displays, it is possible to display the 3D system type of the program while changing the display color to indicate that the own apparatus is an unsupported 3D system type. In that case, the user can easily determine the 3D system type supported by the receiving apparatus while confirming the 3D system type of the program.

  When the user operates the cursor (selected area) displayed on the electronic program guide via the remote control and the cursor is focused on the 3D program, a 3D program mark is displayed in an area other than the selected area. It may be displayed. As a specific example, as shown by 4902 in FIG. 49, for example, detailed information of the program (for example, CH number, broadcast time, program name shown in 4901) is displayed outside the rectangular range represented by the selected program. May be. In the example of FIG. 49, an area for 3D program mark display 4902 and detailed information display 4901 of the program is provided outside the program list display area 4903 of the electronic program guide.

  In addition to the display method of the electronic program guide, when the user performs a specific operation (for example, pressing a button or setting in a menu) via the remote control, or opening an electronic program guide dedicated to a 3D program, or If it is a 3D-compatible device, only 3D programs may be displayed on the electronic program guide. This makes it easier for the user to search for 3D programs.

  In addition to the electronic program guide, the program display (for example, CH banner) displayed when selecting a program, changing program information, or when the user presses a specific button (for example, “screen display”) is also used for a 3D program. A mark may be displayed. When it is determined that the current program is a 3D program by the same 3D program determination method as described above, the 3D program mark is displayed on the program display 5301 when the 3D program is displayed in 2D as in the example of FIG. Is also possible. This makes it possible to determine whether the program is a 3D program without opening the program guide. Also in this case, for example, it may be displayed together with detailed program information such as CH number, broadcast time, and program name shown in 5301. 53 may also be displayed when a 3D program is displayed in 3D.

  Here, regarding the display of the 3D program mark, in addition to the descriptor used in the above 3D program determination method, the specific position (for example, the text_char portion of the short format event descriptor included in the EIT) of the electronic program guide character data (for example, The character “3D” included in the first part) may be used. In this case, even with an existing receiving device, the user can recognize a 3D program from the electronic program guide.

<3D playback / output / display processing of 3D content by 3D2 viewpoint-based ES transmission method>
Next, processing during playback of 3D content (digital content including 3D video) will be described. Here, first, description will be made regarding the playback processing in the case of the 3D2 viewpoint-specific ES transmission method in which the main viewpoint video ES and the sub-viewpoint video ES exist in one TS as shown in FIG. First, when the user gives an instruction to switch to 3D output / display (for example, pressing the “3D” key on the remote controller), the user instruction receiving unit 52 that has received the key code converts the 3D video to the system control unit 51. (Note that the following processing is similar even when switching to 3D output / display for 3D2 viewpoint-specific ES transmission type content under conditions other than the user switching instruction to 3D display / output of 3D content. I do). Next, the system control unit 51 determines whether or not the current program is a 3D program by the above method.

  If the current program is a 3D program, the system control unit 51 first instructs the channel selection control unit 59 to output 3D video. Upon receiving the instruction, the channel selection control unit 59 first receives a PID (packet ID) and an encoding method (for example, H.264 / MVC, MPEG2) from the program information analysis unit 54 for each of the main viewpoint video ES and the sub-viewpoint video ES. , H.264 / AVC, etc.), and then the demultiplexing unit 29 is controlled to demultiplex and demultiplex the main viewpoint video ES and sub-viewpoint video ES and output them to the video decoding unit 30.

  Here, for example, the demultiplexing unit 29 is controlled so that the main viewpoint video ES is input to the first input of the video decoding unit and the sub-viewpoint video ES is input to the second input of the video decoding unit. Thereafter, the channel selection control unit 59 transmits to the decoding control unit 57 the information that the first input of the video decoding unit 30 is the main viewpoint video ES and the second input is the sub-view video ES and the respective encoding methods. And instruct to decrypt these ESs.

  In order to decode 3D programs having different encoding methods between the main-view video ES and the sub-view video ES, as in combination example 2 and combination example 4 of the 3D2 viewpoint-specific ES transmission method shown in FIG. 47, the video decoding unit 30 It is sufficient to configure so as to have a plurality of types of decoding functions corresponding to the respective encoding methods.

  In order to decode a 3D program having the same encoding method between the main viewpoint video ES and the sub-view video ES as in combination example 1 and combination example 3 of the 3D2 viewpoint-specific ES transmission method shown in FIG. 47, the video decoding unit 30 A configuration having only a decoding function corresponding to a single encoding method may be used. In this case, the video decoding unit 30 can be configured at low cost.

  Upon receiving the instruction, the decoding control unit 57 performs decoding corresponding to the encoding methods of the main viewpoint video ES and the sub viewpoint video ES, and outputs the left-eye and right-eye video signals to the video conversion processing unit 32. Here, the system control unit 51 instructs the video conversion control unit 61 to perform 3D output processing. The video conversion control unit 61 that has received the instruction from the system control unit 51 controls the video conversion processing unit 32 to output from the video output 41 or display a 3D video on the display 47 provided in the receiving device 4.

  The 3D playback / output / display method will be described with reference to FIG.

  FIG. 37 (a) is an explanatory diagram of a frame sequential method output for alternately displaying and outputting videos of the left and right viewpoints of 3D content in the 3D2 viewpoint-specific ES transmission method, and a playback / output / display method corresponding to the display. . The upper left frame sequence (M1, M2, M3,...) Is a plurality of frames included in the main viewpoint (left eye) video ES of the content in the 3D2 viewpoint-specific ES transmission method, and the lower left frame in the figure. The columns (S1, S2, S3,...) Represent a plurality of frames included in the sub-viewpoint (for the right eye) video ES of the content in the 3D2 viewpoint-specific ES transmission method. In the video conversion processing unit 32, each frame of the input main viewpoint (for left eye) / sub-viewpoint (for right eye) video signal is converted into a right frame sequence (M1, S1, M2, S2, M3, S3). As indicated by..., Frames are alternately output / displayed as video signals. According to such an output / display method, the maximum resolution that can be displayed on the display for each viewpoint can be used, and high-resolution 3D display is possible.

  In the system configuration of FIG. 36, when the method of FIG. 37 (a) is used, the video signals are output and synchronized so that each video signal can be discriminated for the main viewpoint (left eye) and for the sub viewpoint (right eye). A signal is output from the control signal 43. The external video output device that has received the video signal and the synchronization signal outputs the video of the main viewpoint (for the left eye) and the sub-viewpoint (for the right eye) according to the synchronization signal, and supports 3D viewing. By sending a synchronization signal to the device, 3D display can be performed. Note that the synchronization signal output from the external video output device may be generated by the external video output device.

  In the system configuration of FIG. 35, when the video signal is displayed on the display 47 included in the receiving device 4 using the method of FIG. 37A, the synchronization signal is transmitted to the device control signal transmission unit 53 and the control signal. 3D display is performed by outputting from the device control signal transmission terminal 44 via the transmission / reception unit 33 and controlling the external 3D viewing assistance device (for example, shading switching of the active shutter).

  FIG. 37 (b) is an explanatory diagram of the output / reproduction / display method corresponding to the output and display of the method of displaying the video of the left and right viewpoints of 3D content in the 3D2 viewpoint-specific ES transmission method in different areas of the display. In this process, the 3D2 viewpoint-specific ES transmission system stream is decoded by the video decoding unit 30 and the video conversion processing unit 32 performs the video conversion process. Here, to display in different areas includes, for example, a method of displaying odd lines and even lines of the display as display areas for the main viewpoint (left eye) and the sub viewpoint (right eye), respectively. Alternatively, the display area does not have to be in line units, and in the case of a display having different pixels for each viewpoint, a combination of a plurality of pixels for the main viewpoint (left eye) and a plurality of pixels for the sub viewpoint (right eye) Each display area of the combination may be used. For example, in the above-described polarization type display device, for example, images of different polarization states corresponding to the respective polarization states of the left eye and right eye of the 3D viewing assistance device may be output from the different regions. According to such an output / display method, the resolution that can be displayed on the display for each viewpoint is smaller than that in the method of FIG. 37 (a), but the video for the main viewpoint (left eye) and the sub viewpoint (right eye). Video can be output / displayed simultaneously, and there is no need to display them alternately. Thereby, 3D display with less flicker than the method of FIG.

  In any of the system configurations shown in FIGS. 35 and 36, when the method shown in FIG. 37 (b) is used, the 3D viewing assistance device may be polarization-separated glasses and does not need to perform electronic control. . In this case, the 3D viewing assistance device can be provided at a lower cost.

<3D2 2D output / display processing of 3D content by viewpoint-based ES transmission method>
The operation in the case of performing 2D output / display of 3D content in the 3D2 viewpoint-specific ES transmission method will be described below. When the user gives an instruction to switch to 2D video (for example, pressing the “2D” key on the remote control), the user instruction receiving unit 52 that has received the key code instructs the system control unit 51 to switch the signal to 2D video. (The following processing is performed even when switching to 2D output / display under conditions other than the user switching instruction to 2D output / display of 3D content in the 3D2 viewpoint-specific ES transmission method). Next, the system control unit 51 first instructs the channel selection control unit 59 to output 2D video.

  The channel selection control unit 59 that has received the instruction first acquires the PID of the ES for 2D video (the main viewpoint ES or the ES having the default tag) from the program information analysis unit 54, and sends it to the demultiplexing unit 29. Control is performed to output the ES to the video decoding unit 30. Thereafter, the channel selection control unit 59 instructs the decoding control unit 57 to decode the ES. That is, in the 3D2 viewpoint-specific ES transmission method, since the substream or ES is different between the main viewpoint and the subview, it is only necessary to decode the substream or ES of the main viewpoint.

  Upon receiving the instruction, the decoding control unit 57 controls the video decoding unit 30 to decode the ES and outputs a video signal to the video conversion processing unit 32. Here, the system control unit 51 controls the video conversion control unit 61 to perform 2D video output. The video conversion control unit 61 that has received the instruction from the system control unit 51 performs control to output a 2D video signal from the video output terminal 41 to the video conversion processing unit 32 or display a 2D video on the display 47.

  The 2D output / display method will be described with reference to FIG. Although the configuration of the encoded video is the same as that of FIG. 37, as described above, since the second ES (sub-viewpoint video ES) is not decoded by the video decoding unit 30, one ES to be decoded by the video conversion processing unit 32 The video signal on the side is converted into a 2D video signal as represented by the right frame sequence (M1, M2, M3,...) And output. In this way, 2D output / display is performed.

  Here, the method of not decoding the right-eye ES as a 2D output / display method has been described, but both the left-eye ES and the right-eye ES are decoded and the video conversion processing unit 32 performs the same as in 3D display. You may perform 2D display by implementing the process which thins out the video signal for right eyes. In that case, the switching process between the decoding process and the demultiplexing process is eliminated, and effects such as a reduction in switching time and simplification of software processing can be expected.

<3D output / display processing of 3D content in Side-by-Side format / Top-and-Bottom format>
Next, when there is a left-eye video and a right-eye video in one video ES (for example, a left-eye video and a right-eye video in one 2D screen as in the Side-by-Side method and the Top-and-Bottom method) 3D content playback processing will be described. When the user instructs to switch to 3D video in the same manner as described above, the user instruction receiving unit 52 that has received the key code instructs the system control unit 51 to switch to 3D video (note that The same processing is performed even when switching to 2D output / display under conditions other than the user switching instruction to 2D output / display of 3D content of the Side-by-Side system or Top-and-Bottom system). Next, the system control unit 51 similarly determines whether or not the current program is a 3D program by the above method.

  If the current program is a 3D program, the system control unit 51 first instructs the channel selection control unit 59 to output 3D video. Upon receiving the instruction, the channel selection control unit 59 first obtains the PID (packet ID) of 3D video ES including 3D video and the encoding method (for example, MPEG2, H.264 / AVC, etc.) from the program information analysis unit 54. Then, the demultiplexing unit 29 is controlled to demultiplex and output the 3D video ES to the video decoding unit 30, and the video decoding unit 30 is subjected to a decoding process according to the encoding method to perform decoding. Control is performed so that the processed video signal is output to the video conversion processing unit 32.

  Here, the system control unit 51 instructs the video conversion control unit 61 to perform 3D output processing. Upon receiving the instruction from the system control unit 51, the video conversion control unit 61 converts the input video signal into a left-eye video and a right-eye video and performs processing such as scaling (details will be described later). An instruction is given to the processing unit 32. The video conversion processing unit 32 outputs the converted video signal from the video output 41 or displays the video on the display 47 provided in the receiving device 4.

  The 3D video playback / output / display method will be described with reference to FIG.

  FIG. 39 (a) shows a frame sequential output that alternately displays and outputs video from the left and right viewpoints of 3D content in the Side-by-Side format or the Top-and-Bottom format, and the playback / output / It is explanatory drawing of a display method. The descriptions of Side-by-Side and Top-and-Bottom are shown together as encoded video, but the only difference between the two is the difference in the arrangement of the left-eye video and the right-eye video in the video. Therefore, in the following description, description will be made using the Side-by-Side method, and description of the Top-and-Bottom method will be omitted. The left-side frame sequence (L1 / R1, L2 / R2, L3 / R3...) Is a side-by-side video signal in which left-eye and right-eye images are arranged on the left / right side of one frame. Represents. The video decoding unit 30 decodes the side-by-side video signal arranged on the left / right side of the left-eye and right-eye video frames, and the video conversion processing unit 32 decodes the decoded Side- Each frame of the by-Side video signal is separated into left and right images so that it becomes a left-eye image and a right-eye image, and is further scaled (expanded / interpolated or compressed / decimated to match the horizontal size of the output image) )do. Further, as represented by the right frame sequence (L1, R1, L2, R2, L3, R3,...), Frames are alternately output as video signals.

  In FIG. 39 (a), the processing after the conversion to the output / display video for alternately outputting / displaying the frame, the output of the synchronization signal and the control signal to the 3D viewing assistance device, etc. have already been described. Since this is the same as the 3D playback / output / display processing of 3D content in the 3D2 viewpoint-specific ES transmission method described in (a), description thereof is omitted.

  FIG. 39 (b) shows the output of the method of displaying the left and right viewpoint video of the 3D content of the Side-by-Side method or Top-and-Bottom method in different areas of the display, and playback / output / display corresponding to the display. It is explanatory drawing of a method. As in FIG. 39 (a), descriptions of side-by-side and top-and-bottom methods are shown together as encoded video, but the difference between the two is that the video for the left eye and the video for the right eye In the following description, description will be made using the Side-by-Side method, and description of the Top-and-Bottom method will be omitted. The left-side frame sequence (L1 / R1, L2 / R2, L3 / R3...) Is a side-by-side video signal in which left-eye and right-eye images are arranged on the left / right side of one frame. Represents. The video decoding unit 30 decodes the side-by-side video signal arranged on the left / right side of the left-eye and right-eye video frames, and the video conversion processing unit 32 decodes the decoded Side- Each frame of the by-Side video signal is separated into left and right images so that it becomes a left-eye image and a right-eye image, and is further scaled (expanded / interpolated or compressed / decimated to match the horizontal size of the output image) )do. Further, the scaled left-eye video and right-eye video are output and displayed in different areas. Similar to the description in FIG. 37 (b), displaying in different areas means, for example, that the odd lines and even lines of the display are used as the display areas for the main viewpoint (left eye) and the sub viewpoint (right eye), respectively. There are methods such as displaying. In addition, the display processing in different areas, the display method in the polarization type display device, and the like are the same as the 3D playback / output / display processing of 3D content of the 3D2 viewpoint-specific ES transmission method described in FIG. Therefore, the description is omitted.

  In the method of FIG. 39 (b), when the vertical resolution of the display and the vertical resolution of the input video are the same, the left-eye video and the right-eye video are output and displayed on the odd-numbered line and the even-numbered line of the display, respectively. In some cases, it is necessary to reduce the vertical resolution of each, but in such a case as well, thinning corresponding to the resolution of the display area of the left-eye video and the right-eye video may be performed in the scaling process.

<2D output / display processing of 3D content in Side-by-Side format / Top-and-Bottom format>
The operation of each unit when performing 2D display of 3D content in Side-by-Side format or Top-and-Bottom format will be described below. When the user gives an instruction to switch to 2D video (for example, pressing the “2D” key on the remote control), the user instruction receiving unit 52 that has received the key code instructs the system control unit 51 to switch the signal to 2D video. (Note that the following processing is the same even when switching to 2D output / display under conditions other than the user switching instruction to 2D output / display of 3D content in the Side-by-Side format or Top-and-Bottom format) Process). The system control unit 51 that has received the instruction instructs the video conversion control unit 61 to output 2D video. The video conversion control unit 61 that has received the instruction from the system control unit 51 performs control so that 2D video output is performed on the video signal input to the video conversion processing unit 32.

  A video 2D output / display method will be described with reference to FIG. FIG. 40 (a) illustrates the Side-by-Side method, and FIG. 40 (b) illustrates the Top-and-Bottom method. Both differ only in the arrangement of the left-eye video and the right-eye video. Therefore, the description will be made using the Side-by-Side method of FIG. The left-side frame sequence (L1 / R1, L2 / R2, L3 / R3...) Is a side-by-side system in which video signals for left eye and right eye are arranged on the left / right side of one frame. Represents a video signal. The video conversion processing unit 32 separates each frame of the input side-by-side video signal into left and right left-eye video and right-eye video frames, and then only the main viewpoint video (left-eye video) portion. Is scaled, and only the main viewpoint video (left-eye video) is output as a video signal as represented by the right frame sequence (L1, L2, L3,...).

  The video conversion processing unit 32 outputs the processed video signal as a 2D video from the video output 41 and outputs a control signal from the control signal 43. In this way, 2D output / display is performed.

  FIGS. 40C and 40D also show an example of performing 2D output / display of 3D content of the Side-by-Side system or Top-and-Bottom system as it is, with 2 viewpoints stored in one image. For example, as shown in FIG. 36, when the receiving device and the viewing device have different configurations, the receiving device stores the decoded side-by-side or top-and-bottom video in two viewpoints in one image. The video may be output as it is, and the viewing device may perform conversion for 3D display.

<Example of 2D / 3D video display processing flow based on whether or not the current program is 3D content>
Next, content output / display processing when the current program is 3D content or when the current program becomes 3D content will be described. When viewing the 3D content when the current program is a 3D content program or when it becomes a 3D content program, if the display of the 3D content is unconditionally started, the user cannot view the content. There is a possibility that the convenience of the user is impaired. On the other hand, user convenience can be improved by performing the following processing.

  FIG. 41 is an example of a processing flow of the system control unit 51 that is executed when the current program or program information is changed at the time of program switching. In the example of FIG. 41, the flow is for performing 2D display of video from one viewpoint (for example, the main viewpoint) for both 2D programs and 3D programs.

  The system control unit 51 acquires the program information of the current program from the program information analysis unit 54, determines whether or not the current program is a 3D program by the above 3D program determination method, and further determines the 3D system type of the current program (For example, determination based on the 3D system type described in the 3D program detail descriptor, such as 2-view ES transmission system / Side-by-Side system) is obtained from the program information analysis unit 54 in the same manner (S401). The acquisition of the program information of the current program is not limited to when the program is switched, and may be acquired periodically.

  As a result of the determination, if the current program is not a 3D program (No in S402), control is performed so that 2D video is displayed in 2D (S403).

  When the current program is a 3D program (Yes in S402), the system control unit 51 uses the method described in FIGS. 38 and 40 (a) and 40 (b) to generate a 3D video signal in a format corresponding to each 3D system type. Control is performed so that one of the viewpoints (for example, the main viewpoint) is displayed in 2D (S404). At this time, a display indicating that the program is a 3D program may be displayed superimposed on the 2D display video of the program. In this way, when the current program is a 3D program, the video from one viewpoint (for example, the main viewpoint) is displayed in 2D.

  Even when the channel selection operation is performed and the current program is changed, the above-described flow is performed in the system control unit 51.

  As described above, when the current program is a 3D program, the video of one viewpoint (for example, the main viewpoint) is displayed in 2D for the time being. As a result, even if the user is not ready for 3D viewing, such as when the user is not wearing a 3D viewing assistance device, the user can view almost the same as the 2D program for the time being. In particular, in the case of 3D content in the Side-by-Side format or Top-and-Bottom format, as shown in FIGS. As shown in FIGS. 40 (a) and 40 (b), an instruction for 2D display of one viewpoint from a video stored in two viewpoints in one image by using 2D output / display of one viewpoint, a remote control or the like Even if the user does not perform it manually, it is possible for the user to view the program in the same way as a normal 2D program.

  Next, FIG. 42 shows an example of a message that is displayed in 2D in step S404 and the system control unit 51 displays on the OSD creation unit 60, for example. A message notifying the user that the 3D program has started is displayed, and an object (hereinafter referred to as a user response receiving object: for example, a button on the OSD) 1602 to which the user responds is displayed, and the subsequent operation is selected.

  When the message 1601 is displayed, for example, when the user presses the “OK” button on the remote controller, the user instruction receiving unit 52 notifies the system control unit 51 that “OK” has been pressed.

  As an example of a user selection determination method in the screen display of FIG. 42, when the user operates the remote control and presses the <3D> button on the remote control, or moves the cursor to “OK / 3D” on the screen and <OK> on the remote control When the button is pressed, the user selection is determined as “3D switching”.

  Or, when the user presses the <Cancel> button or <Return> button on the remote control, or when the cursor is placed on "Cancel" on the screen and <OK> is pressed on the remote control, the user selection is determined to be "other than 3D switching" To do. In addition to this, for example, when an operation is performed in which the state of whether or not the user is ready for 3D viewing (3D viewing preparation state) is OK (for example, wearing 3D glasses), the user selection is “3D switching”. "

  FIG. 43 shows a processing flow of the system control unit 51 executed after the user makes a selection. The system control unit 51 acquires the user selection result from the user instruction receiving unit 52 (S501). If the user selection is not “3D switching” (No in S502), the video ends in 2D display, and no processing is performed.

  When the user's selection is “3D switching” (yes in S502), the video is displayed in 3D by the above 3D display method (S504).

  With the above flow, when the 3D program starts, the video of one viewpoint is output / displayed in 2D, and the user wants to perform 3D viewing, such as after the user prepares for operation or 3D viewing, etc. Can be output / displayed to view the video in 3D, and a viewing method suited to the convenience of the user can be provided.

  In the display example of FIG. 42, the object for the user to respond to is displayed. However, a character that simply indicates that the program is a program corresponding to “3D viewing”, such as “3D program”, or It is also possible to display only a logo, a mark or the like. In this case, the user who has recognized that the program is compatible with “3D viewing” depresses the “3D” key of the remote controller and receives the signal from the remote controller from the user instruction receiver 52 to the system controller 51. Switching from 2D display to 3D display is triggered by the notification.

  Furthermore, as another example of the message display displayed in step S404, a method of clearly indicating whether the program display method is 2D video or 3D video as well as simply OK as shown in FIG. . FIG. 44 shows an example of the message and the user response reception object in that case.

  This makes it easier for the user to determine the operation after the button is pressed as compared to the “OK” display as shown in FIG. 42, and allows the user to explicitly indicate a 2D display (see “2D described in 1202”). When “view with” is pressed, the user 3D viewing preparation state is determined to be NG), and convenience is improved.

  It is also possible to display a warning message like 5201, 5202, 5203 described in (a) to (c) of FIG. 52 instead of the message display (message displayed in 1601 or 1201) in FIG. It is done. By displaying a message such as 5201, consideration is given to the health of the user and by prompting the user to view in 2D video, or by displaying a message such as 5202, the health It is possible to call attention to the guardian regarding the child viewing such as 5203.

  Furthermore, the user response reception response object shown in FIG. 42 or 44 may be displayed on the screen together with these messages. In that case, the user can perform an operation of switching the video to 2D / 3D while checking the message.

  The timing for displaying the messages of FIGS. 52 (a), 52 (b), and 52 (c) is convenient for the user to prepare for viewing before the start of the program as in the above example. It is also possible to display after starting the program or when switching to 3D video. When a message is displayed at the start of a program, for example, since it is a video switching point, there is an advantage that it is easy for the user to recognize that the message is related to the program and to draw attention. In addition, the message display at the timing when the video is switched to the 3D video (for example, when the user presses the 3D button) has a merit that the user is likely to be operating and the user is highly likely to visually recognize the message. is there.

  It is also conceivable to reproduce and output sound effects at the same time as displaying the messages in FIGS. 52 (a), (b) and (c). In this case, there is an effect of attracting attention to the message to the user. For example, when the broadcast station starts to send a 3D broadcast program or starts sending a descriptor related to 3D broadcast, the sound effect is multiplexed and transmitted to the audio ES or data broadcast ES and received. May be played back and output. Further, the sound effect incorporated in the receiving device may be reproduced and output (for example, data is read out from the inside of the audio decoding device 31 or from the ROM or the recording medium 26 and decoded).

  Next, an example in which specific video / audio is output or video / audio is muted (black screen display / display stop, audio output is stopped) when 3D program viewing is started will be described. This is when the user starts viewing a 3D program. If the display of the 3D content is started unconditionally, the user cannot view the content, and there is a possibility that the convenience of the user is impaired. On the other hand, user convenience can be improved by performing the following processing.

  FIG. 45 shows a processing flow executed by the system control unit 51 at the start of the 3D program in this case. A difference from the processing flow of FIG. 41 is that a step (S405) of outputting specific video and audio is added instead of the processing of S404.

  The specific video / audio here includes, for example, a 3D preparation message, a black screen, a still image of a program, etc. for video, and the audio includes silence or fixed pattern music (environmental music), etc. Is mentioned.

  For display of fixed pattern video (message, environment video, 3D video, etc.), data is read from the video decoding unit 30 or from a ROM or recording medium 26 not shown in the figure, and the video decoding unit 30 decodes and outputs the data. This can be achieved. The output of the black screen can be realized, for example, by the video decoding unit 30 outputting only the video signal indicating black, or the video conversion processing unit 32 muting the output signal or outputting the black video.

  Similarly, in the case of fixed pattern sound (silence, environmental music), it can be realized by reading out data from the inside of the sound decoding unit 31 or from the ROM or the recording medium 26, decoding output, muting the output signal, and the like.

  The output of the still image of the program video can be realized by instructing the recording / playback control unit 58 from the system control unit 51 to play back the program and pause the video. The processing of the system control unit 51 after the user selection is executed as shown in FIG.

  This makes it possible to prevent the program video and audio from being output until the user completes preparation for 3D viewing.

  Similar to the above example, the message display displayed in step S405 is as shown in FIG. The difference from FIG. 42 is that only the displayed video and audio are different, and the displayed message, the configuration of the user response receiving object, and the operation of the user response receiving object are the same.

  As for the message display, not only simply OK as shown in FIG. 46, but also a method of clearly specifying whether the display method of the program is 2D video or 3D video. In this case, the message and an example of the user response receiving object can be displayed in the same manner as in FIG. 44. In this way, the user can judge the operation after pressing the button more than the display of “OK” as described above. In addition to facilitating the convenience, it is possible to explicitly instruct display in 2D, and the convenience is improved as in the above example.

<Example of 2D / 3D video display processing flow based on whether the next program is 3D content>
Next, content output / display processing when the next program is 3D content will be described. Regarding the viewing of the 3D content program that is the next program when the next program is 3D content, if the user is not in a state of viewing the 3D content and the display of the 3D content starts, the user is best. In such a state, the content cannot be viewed, which may impair user convenience. On the other hand, user convenience can be improved by performing the following processing.

  In FIG. 27, when the time until the start of the next program changes due to channel selection processing or the like, or by the start time of the next program or the end time information of the current program included in the EIT of the program information transmitted from the broadcast station, It is an example of the flow performed by the system control unit 51 when it is determined that the start time of the next program has changed. First, the system control unit 51 acquires program information of the next program from the program information analysis unit 54 (S101), and determines whether or not the next program is a 3D program by the 3D program determination method.

  If the next program is not a 3D program (No in S102), the process ends without performing any particular process. When the next program is a 3D program (yes in S102), the time until the start of the next program is calculated. Specifically, the start time of the next program or the end time of the current program is acquired from the EIT of the acquired program information, the current time is acquired from the time management unit 55, and the difference is calculated.

  If it is not less than X minutes until the next program start (No in S103), the process waits until X minutes before the next program start without any particular processing. When it is X minutes or less until the next program start (yes in S103), a message is displayed to the user that the 3D program will start soon (S104).

  FIG. 28 shows an example of message display at that time. Reference numeral 701 denotes an entire screen displayed by the apparatus, and reference numeral 702 denotes a message displayed by the apparatus. In this way, it is possible to alert the user to prepare the 3D viewing assistance device before the 3D program is started.

  As for the determination time X before the start of the program, if X is reduced, the user may not be ready for 3D viewing before the start of the program. Further, if X is increased, there is a demerit that message display is hindered for a long period of time, and there is a gap after preparation is completed, so it is necessary to adjust to an appropriate time.

  Further, when displaying a message to the user, the start time of the next program may be specifically displayed. FIG. 29 shows a screen display example in that case. A message 802 displays the time until the start of the 3D program. Here, description is made in units of minutes, but description may be made in units of seconds. In that case, the user can know the start time of the next program in more detail, but there is a demerit that the processing load increases.

  In addition, although the example which displays the time until a 3D program is started was shown in FIG. 29, you may make it display the time when a 3D program starts. When the 3D program starts at 9:00 pm, for example, a message “3D program starts from 9:00 pm. Please wear 3D glasses” may be displayed. By displaying such a message, the user can know the specific start time of the next program and prepare for 3D viewing at an appropriate pace.

  In addition, as shown in FIG. 30, it is also conceivable to add a mark (3D check mark) that looks stereoscopic when using the 3D viewing assistance device. 902 is a message for notifying the start of a 3D program, and 903 is a mark that looks three-dimensional when the 3D viewing assistance device is used. Thereby, the user can confirm the normal operation of the 3D viewing assistance device before the start of the 3D program. For example, when a malfunction (for example, battery exhaustion or failure) occurs in the 3D viewing assistance device, it is possible to take measures such as repair or replacement before the program starts.

  Next, after notifying the user that the next program is 3D, it is determined whether or not the user is ready for 3D viewing (3D viewing preparation state), and the video of the 3D program is displayed in 2D or 3D. A method of switching to will be described.

  The method for notifying the user that the next program is 3D is as described above. However, the message displayed to the user in step S104 is different in that an object to which the user responds (hereinafter, a user response receiving object: for example, a button on the OSD) is displayed. An example of this message is shown in FIG.

  Reference numeral 1001 denotes an entire message, and reference numeral 1002 denotes a button for a user to respond. When the message 1001 in FIG. 31 is displayed, for example, when the user presses the “OK” button on the remote controller, the user instruction receiving unit 52 notifies the system control unit 51 that “OK” has been pressed.

  The system control unit 51 that has received the notification saves the state that the user's 3D viewing preparation state is OK. Next, a processing flow of the system control unit 51 when time has elapsed and the current program becomes a 3D program will be described with reference to FIG.

  The system control unit 51 acquires program information of the current program from the program information analysis unit 54 (S201), and determines whether or not the current program is a 3D program by the above-described 3D program determination method. When the current program is not a 3D program (No in S202), control is performed so that the video is displayed in 2D by the above method (S203).

  If the current program is a 3D program (yes in S202), then the user's 3D viewing preparation status is confirmed (S204). If the 3D viewing preparation state stored by the system control unit 51 is not OK (No in S205), the control is similarly performed so that the video is displayed in 2D (S203).

  When the 3D viewing preparation state is OK (Yes in S205), control is performed so that the video is displayed in 3D by the above method (S206). In this way, when it is confirmed that the current program is a 3D program and the user's 3D viewing preparation is completed, the video is displayed in 3D.

  As the message display displayed in step S104, not only simply OK as shown in FIG. 31, but also a method of clearly indicating whether the display method of the next program is 2D video or 3D video is conceivable. Examples of the message and the user response reception object in that case are shown in FIGS.

  In this way, compared to the “OK” display as described above, the user can more easily determine the operation after the button is pressed, and the user can explicitly instruct the display in 2D (see “2D in 1202”). When “view” is pressed, the user 3D viewing preparation state is determined to be NG, and convenience is enhanced.

  The determination of the 3D viewing preparation state of the user is performed by operating the user menu on the remote controller here, but the 3D viewing preparation state is also determined by a user wearing completion signal transmitted by, for example, the 3D viewing assistance device. A method or an imaging device may be used to photograph a user's viewing state, and image recognition or user's face recognition may be performed based on the photographing result to determine that a 3D viewing assistance device is worn.

  By making such a determination, it is possible to save the user from having to perform any operation on the receiving device, and to avoid erroneously setting 2D video viewing and 3D video viewing due to an erroneous operation. Is possible.

  As another method, when the user presses the <3D> button on the remote control, the 3D viewing preparation state is determined to be OK, and the user presses the <2D> button, the <Return> button, or the <Cancel> button on the remote control. There is also a method of determining that the 3D viewing preparation state is NG when pressed. In this case, the user can clearly and easily notify the device of his / her state, but there are also disadvantages such as erroneous operation and state transmission due to misunderstanding.

  In the above example, it is also conceivable to perform processing by determining only the program information of the next program acquired in advance without acquiring information of the current program. In this case, a method of using program information acquired in advance (for example, step S101 in FIG. 27) without determining whether the current program is a 3D program in step S201 in FIG. 32 is also conceivable. In this case, there is a merit that the processing structure becomes simple. However, there is a possibility that the 3D video switching process may be executed even when the program configuration is suddenly changed and the next program is not a 3D program. There are disadvantages.

  The message display for each user described in this embodiment is preferably deleted after a user operation. In this case, there is an advantage that the video can be easily viewed after the user performs the operation. Similarly, after a certain period of time has elapsed, it is assumed that the user has already recognized the message information, and deleting the message to make it easy to view the video improves the user's convenience.

  According to the embodiment described above, the user can complete 3D viewing preparation in advance for the start portion of the 3D program, or the user can use the recording / playback function to start the 3D program when the 3D program is not ready for the start. The user can view the 3D program in a better state, such as displaying video again after preparation for viewing is completed. In addition, it is possible to improve user convenience, such as automatically switching the video display to a display method that is desirable for the user (3D video display when viewing 3D video, or vice versa). The same effect can be expected when switching to a 3D program by channel selection or when starting playback of a recorded 3D program.

  In the above description, an example has been described in which the 3D program detail descriptor described in FIG. 10A is arranged and transmitted in a table such as a PMT (Program Map Table) or an EIT (Event Information Table). Instead of this, or in addition to this, information included in the 3D program detail descriptor may be stored and transmitted in a user data area or an additional information area that is encoded together with the video during video encoding. In this case, these pieces of information are included in the program video ES.

  Examples of stored information include 3d_2d_type (3D / 2D type) information described with reference to FIG. 10B and 3d_method_type (3D method type) information described with reference to FIG. When storing, the 3d_2d_type (3D / 2D type) information and the 3d_method_type (3D method type) information may be different information, but information indicating whether the 3D video or 2D video is classified It is good also as information which identifies collectively whether it is a 3D system.

  Specifically, when the video encoding method is the MPEG2 method, encoding is performed by including the 3D / 2D type information and the 3D method type information in the user data area following the Picture header and Picture Coding Extension. Good.

  In addition, when the video encoding method is the H.264 / AVC method, the additional information (supplemental enhancement information) region included in the access unit is encoded including the 3D / 2D type information and the 3D method type information. Can be done.

  As described above, by transmitting the information indicating the type of 3D video / 2D video or the information indicating the type of 3D system in the video encoding layer in the ES, it is possible to identify the video in units of frames (pictures). There is an effect of becoming.

  In this case, since the identification can be performed in a shorter unit than when stored in a PMT (Program Map Table), the response speed of the receiver with respect to switching of 3D video / 2D video in the transmitted video can be improved. This makes it possible to further suppress noise and the like that may occur when switching between 3D video / 2D video.

  In addition, when the above information is stored in a video coding layer that is encoded together with a video at the time of video coding without placing the 3D program detail descriptor in a PMT (Program Map Table), a conventional 2D broadcast broadcast When a 2D / 3D mixed broadcast is newly started at a station, for example, the broadcast station only needs to configure only the encoding unit 12 in the transmission device 1 of FIG. 2 to newly support the 2D / 3D mixed broadcast. It is not necessary to change the configuration of the PMT (Program Map Table) added by the management information adding unit 16, and 2D / 3D mixed broadcasting can be started at a lower cost.

  It should be noted that 3D related information (particularly 3D) such as 3d_2d_type (3D / 2D type) information and 3d_method_type (3D method type) information is added to predetermined areas such as a user data area and additional information area that are encoded together with video during video encoding. / 2D identification information) is not stored, the receiver may be configured to determine that the video is a 2D video. In this case, for the 2D video, the broadcasting station can omit storing these pieces of information during the encoding process, and the processing man-hours in broadcasting can be reduced.

  In the above description, as an example of arranging identification information for identifying 3D video in units of programs (events) and services, it is included in program information such as a component descriptor, a component group descriptor, a service descriptor, and a service list descriptor. The example which provided the 3D program detailed descriptor newly and the example was demonstrated. In addition, these descriptors are transmitted by being included in tables such as PMT, EIT [schedule basic / schedule extended / present / following], NIT, and SDT.

  Here, as yet another example, an example will be described in which identification information of a 3D program (event) is arranged in a content descriptor shown in FIG.

  FIG. 54 shows an example of the structure of a content descriptor that is one piece of program information. The content descriptor describes information on the genre of the event (program). This descriptor is placed in the EIT. In the content descriptor, in addition to event (program) genre information, information indicating program characteristics can be described.

The structure of the content descriptor is as follows. The descriptor_tag is an 8-bit field for identifying the descriptor itself, and a value “0x54” that can identify this descriptor as a content descriptor is described. descriptor_length is an 8-bit field and describes the size of this descriptor.
content_nibble_level_1 (genre 1) is a 4-bit field and represents the first stage classification of content identification. Specifically, the major classification of the program genre is described. Specify "0xE" to indicate program characteristics.
content_nibble_level_2 (genre 2) is a 4-bit field and represents the second stage classification of content identification in more detail than content_nibble_level_1 (genre 1). Specifically, the middle classification of the program genre is described. When content_nibble_level1 = “0xE”, the type of program characteristic code table is described.
user_nibble (user genre) is a 4-bit field and describes the program characteristics only when content_nibble_level1 = “0xE”. In other cases, it is set to “0xFF” (undefined). As shown in FIG. 54, two 4-bit fields of user_nibble can be arranged, and the combination of the values of the two user_nibble (hereinafter, the first arranged bit is the “first user_nibble bit” and arranged later) Bits are referred to as “second user_nibble bits”) to define program characteristics.

  If the descriptor_tag is “0x54”, the receiver that has received the content descriptor determines that the descriptor is a content descriptor. Further, the end of data described by this descriptor can be determined by descriptor_length. Further, it is determined that the description of the portion equal to or shorter than the length indicated by descriptor_length is valid, and the processing of the portion exceeding the length is ignored.

  Further, the receiver determines whether or not the value of content_nibble_level_1 is “0xE”. If the value is not “0xE”, the receiver determines that the program category is a major category. When it is not “0xE”, it is not determined as a genre, and it is determined that some program characteristic is specified by the subsequent user_nibble.

  If the value of the content_nibble_level_1 is not “0xE”, the receiver determines that the content_nibble_level_2 is a medium category of the program genre, and uses it for searching, displaying, etc. together with the large category of the program genre. If the value of the content_nibble_level_1 is “0xE”, it is determined that it indicates the type of program characteristic code table defined by the combination of the first user_nibble bit and the second user_nibble bit.

  When the value of the content_nibble_level_1 is “0xE”, the receiver determines that the first user_nibble bit and the second user_nibble bit are bits indicating program characteristics by combining them. When the value of the content_nibble_level_1 is not “0xE”, any value in the first user_nibble bit and the second user_nibble bit is ignored.

  Therefore, if the content_nibble_level_1 value of the content descriptor is not “0xE”, the broadcasting station can transmit the genre information of the target event (program) to the receiver by a combination of the content_nibble_level_1 value and the content_nibble_level_2 value. .

  Here, for example, as shown in FIG. 55, when the value of content_nibble_level_1 is “0x0”, the major category of the program genre is defined as “news / report”, the value of content_nibble_level_1 is “0x0”, and the value of content_nibble_level_2 Is defined as "weather" when the value is "0x1", the value of content_nibble_level_1 is "0x0" and the value of content_nibble_level_2 is "0x2" is defined as "special feature / document", and the value of content_nibble_level_1 is "0x1" In this case, the major category of the program genre is defined as “sports”, and the content_nibble_level_1 value is “0x1” and the content_nibble_level_2 value is “0x1” is defined as “baseball”, and the content_nibble_level_1 value is “0x1” The case where the value of content_nibble_level_2 is “0x2” is defined as “soccer”.

  In this case, the receiver can determine whether the major category of the program genre is “news / report” or “sports” based on the value of content_nibble_level_1, and “news” It is possible to determine up to the middle category of the program genre, which is a lower program genre than the major category of the program genre such as “/ report” and “sport”.

  In order to realize the determination process, genre code table information indicating the correspondence between the combination of the value of content_nibble_level_1 and the value of content_nibble_level_2 and the definition of the program genre should be stored in advance in the storage unit of the receiver. .

  Here, a case will be described in which the 3D program-related program characteristic information of the target event (program) is transmitted using the content descriptor. Hereinafter, a case will be described in which identification information of a 3D program is transmitted as a program characteristic instead of a program genre.

  First, when transmitting 3D program-related program characteristic information using a content descriptor, the broadcast station transmits the content descriptor's content_nibble_level_1 value as “0xE”. Thereby, the receiver can determine that the information transmitted by the content descriptor is not the genre information of the target event (program) but the program characteristic information of the target event (program). Further, it can be determined that the first user_nibble bit and the second user_nibble bit described in the content descriptor indicate the program characteristic information by the combination thereof.

  Here, for example, as shown in FIG. 56, when the value of the first user_nibble bit is “0x3”, the program characteristic information of the target event (program) transmitted by the content descriptor is “3D program related program characteristics”. Information ”, the program characteristics when the value of the first user_nibble bit is“ 0x3 ”and the value of the second user_nibble bit is“ 0x0 ”,“ 3D video is included in the target event (program) ” And the program characteristics when the value of the first user_nibble bit is “0x3” and the value of the second user_nibble bit is “0x1” are “the target event (program) video is 3D video” If the value of the first user_nibble bit is “0x3” and the value of the second user_nibble bit is “0x2”, the program characteristics are defined as “3D video and 2D video during the target event (program)”. Will be described.

  In this case, the receiver can determine the 3D program-related program characteristics of the target event (program) by the combination of the value of the first user_nibble bit and the value of the second user_nibble bit, and the content descriptor is included. In the electronic program guide (EPG) display, the receiver that has received the EIT indicates that “a 3D video is not included” for a program that is received in the future or that is currently received, and that it is a “3D video program” for the program. With respect to the program, it is possible to display an explanation to the effect that “3D video and 2D video are included” and to display a graphic indicating the fact.

  In addition, the receiver that has received the EIT including the content descriptor can search for a program that does not include 3D video, a program that includes 3D video, a program that includes 3D video and 2D video, and the like. It is possible to display a list of programs.

  In order to realize the determination process, a program characteristic code table indicating a correspondence relationship between the combination of the value of the first user_nibble bit and the value of the second user_nibble bit and the definition of the program characteristic is stored in the storage unit of the receiver. Information may be stored in advance.

  As another definition example of the program characteristic information related to the 3D program, for example, as shown in FIG. 57, when the value of the first user_nibble bit is “0x3”, the target event (program ) Is defined as “program characteristic information related to 3D program”, the value of the first user_nibble bit is “0x3”, and the value of the second user_nibble bit is “0x0” The characteristic is defined as “the target event (program) does not include 3D video”, and the value of the first user_nibble bit is “0x3” and the value of the second user_nibble bit is “0x1” Is defined as “the target event (program) includes 3D video and the 3D video transmission method is the Side-by-Side method”, and the value of the first user_nibble bit is “0x3” and the second When the user_nibble bit value is “0x2”, the program characteristics are set to “Target event (program 3D video is included, and the 3D video transmission method is a top-and-bottom method ”, the value of the first user_nibble bit is“ 0x3 ”and the value of the second user_nibble bit is“ 0x3 ” The case where “3D video is included in the target event (program) and the 3D video transmission method is the 3D2 viewpoint-specific ES transmission method” will be described.

  In this case, the receiver can determine the 3D program-related program characteristics of the target event (program) based on the combination of the value of the first user_nibble bit and the value of the second user_nibble bit. It is possible to determine the 3D transmission method when not only the video is included but also the 3D video is included. If information on a 3D transmission method that can be supported by the receiver (3D playback is possible) is stored in advance in a storage unit included in the receiver, the receiver can perform the corresponding (reproduceable) 3D transmission stored in the storage unit in advance. By comparing the system information with the 3D transmission system information of the target event (program) determined by the content descriptor included in the EIT, in the electronic program guide (EPG) display, it is received in the future or currently received “3D video is not included” for the program, “3D video is included and 3D playback is possible with this receiver” for the program, and “3D video is included with the receiver,” It is possible to display an explanation to the effect that “3D playback is not possible” and to display a graphic indicating that effect.

  Further, in the above example, the program characteristic when the value of the first user_nibble bit is “0x3” and the value of the second user_nibble bit is “0x3” is “the target event (program) includes 3D video. The 3D video transmission method is a 3D2 viewpoint-specific ES transmission method ”, but a second user_nibble bit value is prepared for each detailed stream combination of the“ 3D2 viewpoint-specific ES transmission method ”shown in FIG. May be. In this way, further detailed identification is possible at the receiver.

  Moreover, you may display the information of the 3D transmission system of an object event (program).

  A receiver that receives an EIT including the content descriptor includes a program that does not include 3D video, a program that includes 3D video, and a 3D video that can be played back by the receiver. It is possible to search for programs that cannot be played back in 3D, and to display a list of the corresponding programs.

  In addition, programs that include 3D video can be searched for each 3D transmission system, and a list of programs can be displayed for each 3D transmission system. Searching for programs that include 3D video but cannot be played back in 3D with this receiver, or search for programs for each 3D transmission method, for example, playback of other 3D video programs that the user has even if 3D playback is not possible with this receiver. This is effective when playback is possible on the device. Even if a program includes 3D video that cannot be played back in 3D by this receiver, the program is output from the video output unit of this receiver to another 3D video program playback device in the form of a transport stream. It is also possible to 3D play the received transport stream program on the playback device, and if the receiver has a recording unit for recording content on the removable medium, the program is recorded on the removable medium. This is because the above-mentioned program recorded on the removable medium can be played back in 3D by the other 3D video program playback device.

  In order to realize the determination process, a program characteristic code indicating a correspondence relationship between the combination of the value of the first user_nibble bit and the value of the second user_nibble bit and the definition of the program characteristic is stored in the storage unit of the receiver. The table information and the information of the 3D transmission method that the receiver can support (3D playback is possible) may be stored in advance.

<Example of processing for storing information in recording medium 26>
58 and the subsequent drawings, an example of the operation of a receiving apparatus that records information on whether video data to be recorded is 3D or not when recording broadcast data on the recording medium 26 by the recording / reproducing unit 27 will be described. .

  FIG. 58 shows an internal block diagram of the recording / reproducing unit 27. A partial TS (or full TS) to be recorded is selected by the demultiplexing unit 29 and a stream to be recorded is input to the recording / reproducing unit 27. The demultiplexing unit 29 also separates and acquires program information such as EIT included in the broadcast stream. Of the obtained program information, recorded program information that may be necessary for reproduction list display or the like is collected, and this data is also input.

  In FIG. 58 (a), the stream separated by the demultiplexing unit is input to the demultiplexer 5801 and the information acquisition unit 5802. The demultiplexer 5801 analyzes the information up to the ES level and acquires, for example, a 3D / 2D identifier written in the UserData area. The acquired information is transferred to the program information management unit 5806 via the CPU 21 and recorded together with other program information. The information acquisition unit 5802 acquires information that can be acquired at the TS level. For example, data read position information (also referred to as clip information) necessary for playback of a recorded program, particularly special playback, is created.

  Next, the encryption unit 5803 encrypts the stream data from the viewpoint of security. The encryption method may be a unique method or a method defined by some standard. The data that has been encrypted is passed to the file system 5804. In the file system 5804, data is recorded on the recording medium 26 in a unique or predetermined format.

  When recording or reading is performed, data processing is performed through the recording medium control unit 5805. The program information described above is received by the program information management unit 5806 and matched with data in a predetermined format. Completed program information is sent to the file system 5804 and written to the recording medium 26.

  Reference numeral 5807 denotes a general-purpose bus connected from the general-purpose bus 22, and the control signal is transmitted between the CPU 21 and each block.

  The timing for recording the program information may be any timing at which the information is considered to be confirmed, and examples include, for example, 10 seconds after recording is started or after all recording is completed. Further, the demultiplexer 5801 may stop the operation at a timing when it is considered that the 2D / 3D information is confirmed.

  FIG. 58B is a modification of the above (a). The stream data selected by the demultiplexing unit 27 is input to the demultiplexer 5801. The information acquisition unit 5802 can acquire ES level 2D / 3D information from the demultiplexed data. Re-formation is performed in the form of a partial TS at the remax portion 5803, and the subsequent recording is performed in the same manner as described with reference to FIG.

  For example, video signal / audio signal format conversion (also referred to as transcoding) or bit rate conversion (translation) may be performed between demax and remax. When transcoding the video signal, it is necessary to appropriately generate and record a flag indicating the 2D / 3D format accordingly.

  An example of a method for storing 3D / 2D information in the recording medium 26 will be described with reference to FIGS. FIG. 59 shows an example of a folder and file structure at the time of recording. In the overall information file, for example, how many programs are recorded, information such as the recording position and data size of the management data (also referred to as program information file) is recorded. The menu thumbnail file records the number of all recorded menu thumbnail images, image data used on the menu screen for displaying a list of recorded programs, and recording position information for reading out the image data. .

  The chapter thumbnail file includes the number of recorded thumbnail images for chapters, image data displayed when a list of chapter information to be described later on each recorded program is displayed, and recording position information for reading out the image data. It is recorded.

  In FIG. 59, the program information file (program information N) corresponding to each recorded program file (program N (N is a natural number of 1 or more)) including video / audio data, and the recording position and playback time of the video / audio data are linked. 2 illustrates a folder and file configuration in which clip information files (clip information N) to be recorded are recorded in separate folders.

  In this case, for example, when a new program is recorded, a program 3 file is generated below the stream directory, for example, and the program information 3 file is created below the playlist directory and the clip information 3 file is created below the clip information directory. When permitting the user to edit data, information of a plurality of recorded program files may be recorded in one program information file or clip information file, or only a part of information of the recorded program file may be recorded.

  For example, when the program information 1 indicates that information corresponding to all of the program 1 and a part of the program 2 is combined, it is possible to show them to the user as one reproduction program.

  Further, when deleting recorded program data, for example, if the user's editing designation is content deletion designation in units of program information, the corresponding program information file is deleted, and the associated recorded program file (program) is deleted. All of them are checked whether they are associated only with the relevant program information file, and if the association is associated only with the relevant program information file, they are deleted, and if they are associated with other program information files, they are not deleted.

  By doing so, the association between the program information file and the recorded program file is maintained. As for the menu thumbnail file and the chapter thumbnail file, it is only necessary to confirm the association in the same manner as the recorded program file and maintain a consistent state. Further, the entire information is appropriately corrected and maintained consistent every time there is a change in data in the same directory (in the AV file directory in FIG. 59).

  An example of adding the data structure inside the program information file and the 3D / 2D discrimination information is shown in FIG.

  For example, information held without depending on the associated program is recorded in the common program information. “Character set” specifies, for example, a language code for recording the following information. For example, when the value of the “reproduction protect flag” is 1, it means that there is a restriction that reproduction is not possible unless the user inputs a PIN code. When the value is 0, playback is possible without limitation.

  For example, when the value of “write protect flag” is 1, it means that the user cannot edit or delete. When the value is 0, the user can freely perform operations such as editing / deleting. The write protect flag may be set by the user by providing an OSD (interface) such as a setting menu.

  The “unreproduced flag” indicates that, for example, if the value is 1, reproduction has not been performed by a user operation even after recording. A value of 0 indicates that playback has been performed even once. “Edit flag”, for example, if the value is 0, indicates that editing processing such as partial deletion, division / combination has not been performed even after recording. A value of 1 indicates that some editing has been performed by the user.

  “Time zone” represents, for example, the time zone of the land where the program information is recorded. “Recording date and time” indicates, for example, the date and time when this program information was recorded. “Reproduction time” indicates, for example, the total recording time of each program associated with this program information in terms of time.

  “Manufacturer ID” registers, for example, a numerical value representing a device manufacturer that is uniquely determined when the program information is generated. “Manufacturer model code”, for example, registers the device model number uniquely determined by the device manufacturer when the program information is generated. “Broadcasting station number” records the broadcasting station number when the recorded program is data received by broadcasting, for example.

  “Broadcasting station name” records the broadcasting station name, for example, in the case where the recorded program is data transmitted and received. “Program name” stores, for example, the program title name of the recorded program. The program name may be freely reorganized by the user even after recording. “Program details” stores, for example, detailed information representing the contents of a recorded program. For example, the program contents in which the performers of the programs included in SI / PSI and simple story explanations are described may be recorded as they are.

  3D / 2D identification information is added to the reserved area of the program common information. For example, if the value is 1 and the value is 1, this indicates that there is a program including at least one 3D video signal in the program related to the playlist, and if the value is 0, the program related to the 3D video signal. Indicates that it is not included. In this case, the 3D system of the 3D video signal does not matter.

  By recording information here, for example, when displaying a list of recorded programs, it is possible to notify the user whether or not 3D video is included in a certain program with reference to this information.

  For example, “play item number” is recorded in “play list information”. “Play item” means, for example, one program associated with this program information. In other words, play items and programs are associated one-on-one. Therefore, the “number of play items” means the number of programs associated with the program information.

  “Play item information” is stored in a number equal to the number of play items, and information unique to each corresponding program is recorded therein. “Program name” holds the name of the corresponding program. “Codec identification information” indicates the encoding method of the video / audio data of the corresponding program. For example, for video, MPEG2 or H.264 is used. In the case of H.264, audio, it is an audio encoding format such as MPEG2-AAC, MP3, or MPEG1-Layer2.

  The “start time” indicates the start position of the program corresponding to the position indicated by the play item information. The specified value may be recorded by time information such as PTS / DTS. The “end time” indicates the end position of the program corresponding to the position indicated by the play item information. The specified value may be recorded by time information such as PTS / DTS.

  In the example of FIG. 60, only one piece of play item information is shown, but when there are a plurality of associated programs, a plurality of pieces of play item information may be recorded in the same manner.

  As a typical example, FIG. 60 shows an example in which 3D / 2D identification information is added to the program common information. However, when “reserve area” is included in the play item information, the 3D / 2D identification information is included here. May be added, or may be recorded in both. For example, a 1-bit information value of 1 indicates that the corresponding program includes a 3D video signal, and a value of 0 indicates that a 3D video signal is not included in the program. By recording here, management in more detailed units becomes possible. In addition, in order to add 3D / 2D identification information, it is only necessary to add it in an area where information indicating video signal characteristics such as a codec is gathered and where there is an empty area for registering information.

  In the chapter information file, the number of “mark information” indicating how many chapters (also referred to as chapter marks or simply marks) are set in the program information is recorded. “Mark information” is recorded as time information that can uniquely identify where the mark is in the program file by combining information on the number of updates of PTS and STC, for example, for each mark. For example, when a chapter is added to a corresponding program by a user operation or a function for automatically registering a chapter, the mark information is increased by one.

  When the value of the “mark invalid flag” is 1, it means that the corresponding chapter is invalid and is not displayed to the user, for example. If the value is 0, it means that the corresponding chapter is valid and displayed. “Mark type” means a classification of a mark. It is a mark indicating the resume position, a mark indicating the chapter position, or the like.

  If the manufacturer of the receiving device 4 can also arbitrarily set the classification, for example, a mark indicating the chapter position indicating the division between the main program and the CM and a mark indicating the chapter position set by the user operation are possible. It is. “Manufacturer ID” registers a numerical value representing a device manufacturing company that is uniquely determined when the mark is generated.

  “Play item ID” holds the ID of the corresponding play item information. “Mark time” indicates a position on the program corresponding to the mark information. “Entry ES PID” indicates which ES in the corresponding program is the mark information.

  As a result, even if there is a plurality of video ESs in the corresponding program, the target can be uniquely specified. Although “thumbnail reference” is not shown in the figure, when a thumbnail still image file at the position of each mark is held, an ID for specifying the file is held.

  “Mark name” holds information when a name is assigned to the mark. In the example of FIG. 60, only one mark information is shown. However, when there are a plurality of marks generated by a user operation or automatically generated by a program in the recording / reproducing apparatus, a plurality of mark information may be recorded in the same manner. .

  As shown in the above embodiment, 3D / 2D identification information is recorded in a place where the information has been recorded in the reserved area, so that the 3D / 2D information is ignored in an old device that cannot recognize 3D information. There is an effect that does not cause malfunction. Even when recording in a data format different from the present embodiment, the same effect can be obtained by using the reserved area.

  Further, it is possible to grasp 2D / 3D switching in units of frames by viewing up to the video ES level information with the demultiplexer 5801. By using this to store the position at which 2D / 3D is switched as mark information, the receiving device can manage the switching position more strictly. For example, the above-described message for wearing glasses to the user during playback There is an advantage that the display timing can be controlled more accurately. The mark type may be held as a type (classification) indicating 2D / 3D switching.

  The clip information file recorded in the clip information directory is a file that has a one-to-one correspondence with a program file, for example, and records data position information of the corresponding program file. For example, the information acquisition unit 5802 detects a packet including I picture head data of a stream to be recorded and its time information (for example, PTS), and the file system 5804 can uniquely determine the head data position of the I picture. For example, it is recorded in the clip information file as data combining the number of packets from the beginning of the program and time information.

  By recording this information, it is possible to read the necessary I picture data instead of reading all the data when starting playback from the position of an arbitrary I picture at the time of playback, or when performing fast forward / rewind playback. Control such as display is possible.

  Alternatively, if the I picture position cannot be detected by the information acquisition unit 5802, for example, data combining a certain data size and time information (for example, PCR or PTS) may be recorded in the clip information file. As a result, the control is not as accurate as when the I picture position is recorded, but it is possible to start playback from the display position recorded in the same way and to realize special playback by partial display.

  In the embodiment described above, the recorded program file including the program information and the video / audio data, the program information file, and the clip information file are provided in different folders, but may be recorded in the same folder as a modified example. The program information file may be bundled with the recorded program file in the form of a stream directory.

  Also, the data structure in the program information file is not limited to the example in FIG. 60, and it is sufficient that all files are recorded in a fixed format and information can be regularly read during reproduction, and the same effect can be obtained. I can do it.

  The data structure examples described above describe only representative members. Having other members, combining multiple members into one, and converting one member into multiple members with detailed information. Dividing is also conceivable.

  FIG. 61 shows an example of a determination sequence for determining whether or not a program to be recorded is a program including, for example, an SBS stereoscopic display image. In S6101, an identifier for determining 3D / 2D on the PSI or SI information as shown in FIGS. 7, 10A, and 56 is acquired from the stream recorded by the demultiplexing unit 29, data is transmitted to the CPU 21, and the process proceeds to S6102. move on.

  In step S6102, it is determined whether information indicating 3D / 2D exists in the information acquired by the CPU 21. If it is determined that the identifier is present (Yes), the process proceeds to S6103. If not (No), the process proceeds to S6104.

  In S6103, it is determined whether or not the information acquired by the CPU 21 indicates a 3D program. If it is a 3D program (Yes), the process proceeds to S6104. If it indicates a 2D program (No), the process proceeds to S6105.

  In S6104, the CPU 21 instructs the program information management unit 5806 to record 3D in the program information according to a prescribed format as shown in FIG.

  In step S6105, the CPU 21 instructs the program information management unit 5806 to record 2D in the program information according to a prescribed format as shown in FIG. 60, for example, and the process ends.

  FIG. 62 shows another example of the determination sequence for determining whether the program is a 3D program. In S6201, 3D identification information (for example, information in UserData of MPEG2 video, Frame Packing Arrangement SEI information of H.264 video) existing in the video ES of the stream to be recorded by the demultiplexer 5801 is acquired and transmitted to the CPU 21 and sent to S6202. move on.

  In S6202, the CPU 21 determines whether or not the acquired information is a 3D program. If the acquired information indicates a 3D program (Yes), the process proceeds to S6104. If the acquired information indicates a 2D program (No), the process proceeds to S6105. .

  In S6104, the CPU 21 instructs the program information management unit 5806 to record 3D in the program information according to a prescribed format as shown in FIG. In step S6105, the CPU 21 instructs the program information management unit 5806 to record 2D in the program information according to a prescribed format as shown in FIG. 60, for example, and the process ends.

  Information recorded in PSI or SI and information recorded in user_nibble can exist simultaneously in one stream. FIG. 63 shows an example of a sequence for determining whether the information is a 3D program using both pieces of information.

  In S6101, an identifier for determining 3D / 2D on PSI or SI information as shown in FIGS. 7 and 10A is acquired from the stream recorded by the demultiplexing unit 29, data is transmitted to the CPU 21, and the process proceeds to S6201.

  In S6201, information described in user_nibble as shown in FIG. 56 is acquired from the stream recorded by the demultiplexer 5801, and is transmitted to the CPU 21, and the process proceeds to S6301. In S6301, the CPU 21 determines whether or not the stream to be recorded is 3D from the two pieces of information obtained. If both are information indicating 3D, the process proceeds to S6104, and if both are information indicating 2D, the process proceeds to S6105.

  In S6104, the CPU 21 instructs the program information management unit 5806 to record 3D in the program information according to a prescribed format as shown in FIG.

  In step S6105, the CPU 21 instructs the program information management unit 5806 to record 2D in the program information according to a prescribed format as shown in FIG. 60, for example, and the process ends.

  The timing for executing the processing shown in FIGS. 61 to 63 is arbitrary, but for example, when the reserved recording is performed from the head of a certain program, the receiving device 4 may establish the recording (save the data in the recording medium 26). The accompanying program information may be recorded in accordance with the fixed timing, or a value obtained after a certain time has elapsed after the start of recording may be recorded. If the system is one recording file for each broadcast program, the program information may be recorded after a predetermined time has elapsed (for example, 10 seconds) after the switching of the broadcast program is detected.

  There may be an arbitrary time lag from the 3D determination of the recorded program by the CPU 21 to the actual recording of the program information on the recording medium 26. For example, the information acquisition and analysis are performed after a certain time from the recording start, and the recording end Program information may be recorded on the recording medium 26 at the timing.

  FIG. 64A is an example in which 3D broadcast system identification information is further added to the data configuration example in the program information file shown in FIG. When there is sufficient “reserved area” in the common program information, “3D / 2D identification information” and “3D system identification information” are added.

  In this figure, the display of the parts such as chapter information that is not changed is omitted. FIG. 64B shows an example of the bit string of “3D system identification information” and the meaning indicated by it. If the bit value is 0x00, the corresponding program includes a side-by-side 3D video signal. If the bit value is 0x01, the corresponding program includes a top-and-bottom 3D video signal. If the bit value is 0x02, a frame sequential 3D video signal is included. 0x03 is reserved for future expansion.

  As a result, when the receiving device 4 receives and records a plurality of different 3D broadcasts, the receiver 4 can also display the information by recording the 3D system. Is possible.

  The information acquisition sequence at the time of recording is the same as the example shown in FIGS. 61 to 63, and 3D system identification information may be recorded when the program information is recorded on the recording medium 26. This makes it possible to present the 3D system to the user when displaying the recorded program list. If 3D presentation is not required, it may be presented only that 3D video is included.

  Further, “3D / 2D identification information” and “3D system identification information” may be recorded in the “reserved area” in the play item information. This makes it possible to present the 3D system to the user in more detailed units.

  As a further different modification, “3D / 2D identification information” may be recorded in the program common information, and “3D identification information” may be recorded in the play item information. In this way, it is possible to present to the user whether or not the 3D video signal is included only by referring to the common program information, and when presenting the information in more detail, the 3D method is presented by referring to the play item information. Is possible.

  FIG. 64 shows an example in which “3D / 2D identification information” and “3D system identification information” are recorded separately, but these may be combined into one piece of information such as “3D identification information”. For example, if the bit value of this information is 0x00, the corresponding program does not include a 3D video signal. If it is 0x01, the corresponding program includes a side-by-side 3D video signal. If the bit value is 0x02, the corresponding program includes a top-and-bottom 3D video signal. If the bit value is 0x03, a frame sequential 3D video signal may be included, and even if a 3D display method other than the one described in this embodiment is used, sufficient bits are allocated and sequentially defined. By doing so, the same effect as the above-described embodiment can be obtained.

<Example of information display processing during playback>
As described above, if the 3D discrimination information is included in the program information recorded on the recording medium 26, the following effects can be obtained during reproduction.

  FIG. 65 shows an example of a screen display when a list of program data recorded on the recording medium 26 is displayed. Reference numeral 6501 denotes a display for display. Reference numeral 6502 denotes an area for displaying a tag indicating which recording medium is currently displayed when the receiving apparatus can connect a plurality of recording media. Reference numeral 6503 denotes an area for displaying a classification information tab to be selected when the user wants to classify and display a program.

  For example, when the tab “unviewed” is selected using the up and down keys of the remote controller, only the program that has not been reproduced yet is displayed in the display area 6504 after the corresponding recording. Tabs displayed in this hierarchy may extend over a plurality of hierarchies. For example, when “genre” is selected, another similar tab display area can be provided in the area 6503, and genre tabs such as “drama”, “news”, and “animation” can be arranged.

  For example, if the user selects “drama” from among them, only the drama program corresponding to the display area 6504 is displayed. Therefore, genre information needs to be recorded in the program information. Reference numeral 6504 denotes an area for displaying a list of recorded program data matching the classification selected in 6503. The user performs an operation such as selecting a program to be reproduced from the programs displayed here.

  If there are more than the number of recorded programs (five in this example) that can fit on one screen, they are displayed across multiple pages. A scroll bar may be displayed on the side. Information to be displayed in one recorded program data is arbitrary. For example, a thumbnail image, recorded date and time, program name, recording mode when recording, and the like are displayed. The thumbnail image may be a still image or a moving image. Reference numeral 6505 denotes a guide display area for displaying a simple operation explanation to the user and operation contents that can be operated by the remote controller.

  In FIG. 65A, when all the programs recorded on the recording medium 26 are displayed as a list, the 3D discrimination information of the program information is referred to, and a mark (also referred to as an icon) indicating the 3D program is displayed. It is an example. Program B and program D are 3D programs, and other programs are 2D programs, so nothing is displayed.

  As a result, the user can easily find the 3D program. Of course, the display is not limited to icons, and a character string indicating a 3D program may be added to the program title for display. Similarly, a mark indicating 2D may be displayed on a 2D program. In that case, the display color may be changed so that the user can further distinguish between 3D and 2D.

  FIG. 65B shows an example in which “3D” is selected on the classification tab and 3D programs recorded on the recording medium 26 are displayed as a list. By recording the 3D discrimination information as program information at the time of recording, it is possible to display by such classification. This can be realized by referring to the 3D discrimination information of the program information of all recorded programs by the CPU 21 and extracting and displaying only the 3D programs.

  As a result, the user can easily search for 3D programs even when there are many recorded programs. In this example, a mark indicating that each program is a 3D program is displayed in the list display area 6504. However, since it is clear that a 3D program is displayed in the classification tab area 6503, the mark may not be displayed. good.

  The information shown in the display area 6504 is not limited to the content shown in FIG. That is, the display order of each information such as the program name and program recording time may be different from this example, and the information to be displayed is other than this example, for example, a mark indicating unviewed or a mark indicating that a chapter is registered. The information derived from the program information may be displayed.

  FIG. 66 shows an example of a list display in which the program display method in the list display area 6504 of each program is different. Although the display contents for each program are simplified, many programs can be displayed at one time. Also in this display example, the user can easily distinguish the 3D program by displaying the mark indicating the 3D program together.

  Further, when 3D system identification information is recorded together with program information, the 3D system may be displayed at the time of list display as shown in FIG. By displaying the marks such as side-by-side, top-and-bottom, and frame sequential, it is possible to easily understand which 3D system the user is using.

  As a result, the user can easily understand which program is a 3D broadcast including the transmission method. 67 illustrates the case where “3D” is selected on the classification tab, but the method type information may be displayed in the same manner when “all” or other tabs are selected.

  When a 3D program is detected according to the sequence shown in FIGS. 61 to 63 as an operation at the time of recording, the CPU 21 starts the program name of the program information recorded by the program information management unit 5806 in the operation of S6104. A further effect can be obtained by recording the character data “3D]”.

  The character string to be added may be a character string such as “[3D]” or “(3D)” as long as it is known that the character string is a 3D program. It may be a character string such as “broadcast as a 3D program”. If there is an upper limit to the number of characters that can be recorded in the program name, and the upper limit is exceeded by adding the character string “[3D]”, a data amount sufficient to add the last character data (for example, 4 full-width characters in this example) Character) is deleted and character data “[3D]” is added to the head.

  FIG. 68 shows an example of a recorded program list screen displayed when such control is performed. Since character strings are added to the heads of the program names of the program 1 and the program 4 which are 3D programs, it is possible to determine at a glance which program is a 3D broadcast by using only the program name. At this time, a mark indicating a 3D program as shown in FIG. 65 may be displayed together. Even when displaying in the list display format, the same effect can be obtained by the same display.

  Considering the case where the receiving device 4 is provided with a removable recording medium, and the removed recording medium can be used by connecting it to a different device, this control reads the 3D discrimination information of the program information recorded by the connected device. Even if the device cannot be output, reading the program name allows the user to determine which program is 3D when displaying information of the recorded program.

  A display example of the recorded program list at this time is shown in FIG. In the recording medium information display area program list display area 6504 in FIG. 6502, “[3D]” is shown in the programs 1 and 4 as in (a). As a result, the user can easily determine a 3D program on the list even when using a device that cannot read 3D determination information.

  In this example, the “3D” tab is not displayed in the classification tab display area 6503, but there is regularity at the beginning of the program name, so that, for example, a tab “3D” can be created and displayed by detecting this. Is possible.

  The thumbnail images in the list display format shown in FIG. 65 are small in size and may be created and displayed in 2D even if they are thumbnails of 3D programs. For example, in the case of a program having a side-by-side video signal, data is read from the recording medium 26, the video on the left side is decoded by the video decoding unit 30, a video expanded and contracted twice in the horizontal direction is captured, and converted to a still image such as JPEG And stored in the corresponding part of the recording medium 26. This is recorded in the previous program information data and updated.

  The playback content created by connecting all or part of a plurality of recorded programs is expressed as a playlist. In the list display illustrated in FIG. 65, the user can switch to the playlist list display by pressing the blue button on the remote control device. Change.

  FIG. 69 shows an example of displaying a playlist content list. In this case, 6504 is a list display area of the created playlist. The program information of the individual program included in each playlist is confirmed, and if at least one of the values of the 3D / 2D identification information is a value that includes 3D, the display location of the playlist is displayed. A mark indicating 3D is displayed together.

  As a result, the user can recognize a stream including a 3D program at a glance. Furthermore, information regarding at which position in the playlist the 2D / 3D is switched can be dealt with by recording a mark as the chapter information described above.

  In FIG. 69, when the user selects 3D from the classification tab or when the list display is performed after the green button on the remote controller is pressed, the same display as in FIG. 65B or 66 is performed. When a playlist is edited or newly created, displaying the 3D / 2D identification information based on the 3D / 2D identification information allows the user to check which position the 3D program enters.

  FIG. 70 shows an example of a screen display for creating a playlist by extracting a program or scene of a recorded program stored in the recording medium 26. Reference numeral 7001 denotes a display area of program data serving as a source for creating a playlist, and displays thumbnail images in units of programs and chapters of each program.

  The user can add the scene to the playlist by selecting the thumbnail image of the desired scene. An area 7002 displays the contents of the playlist being created as a sequence of thumbnail images of each scene. For example, the user selects a desired scene with the left and right keys of the remote controller in the area 7001 and then inserts the scene at a desired location in the area 7002 to create a playlist.

  For example, when the yellow button is pressed in the area 7002, the scene on which the cursor is placed is deleted from the playlist. When there is chapter information indicating the 3D / 2D switching, 3D / 2D can be determined by referring to this chapter information for each program or scene displayed in 7001 and 7002, and the 3D program or scene can be identified. A mark indicating 3D is displayed.

  The mark may be displayed by analyzing video data or program information of a program or scene. As a result, the user can create a playlist while confirming at which position the 3D program is inserted.

<Example of list display / playback processing in another system configuration>
Consider a case in which the video / audio output device 3601 (receiving device 4) holds a recording medium in the system configuration shown in FIG. As shown in FIG. 60, for example, if only 1-bit information is added to the program information and information indicating whether each recorded program includes 3D video is held, the information is stored via the transmission path 3602 in FIG. A list screen on which the user can easily identify the 3D program as shown in FIG.

  When viewing recorded program data including 3D video data with this system configuration, if 3D metadata can be transmitted in the format defined by the transmission path 3602 (for example, the format defined by the HDMI standard), The audio output device 3601 (reception device 4) notifies the display 3603 of 3D system type information as metadata together with video output. If the 3D metadata cannot be transmitted in the format defined by the transmission line 3602, the display 3603 receives the recorded program data including the 3D video data, decodes it to the original video signal, and determines the 3D system type. It ’s fine.

  If the video / audio output device 3601 allocates a plurality of bits as shown in FIG. 64 and holds 3D system identification information as program information, a list that allows the user to easily identify up to 3D system as shown in FIG. A screen can be displayed on the display 3603. At this time, when viewing recorded program data including 3D video data with this system configuration, 3D metadata can be transmitted in a format defined by the transmission path 3602 (for example, a format defined by the HDMI standard). For example, 3D system type information can be notified to the display 3603 by converting the 3D system identification information held in the program information into a prescribed metadata format and transmitting it.

<Example of viewing processing via network>
The program recorded by the receiving device 4 of the present invention can be played back by another playback device connected by, for example, a home network. FIG. 71 shows an example in which the receiver 4 is connected to the playback device 7102 and the recording / playback device 7103. The connection control device 7101 is, for example, a device such as a modem having a routing function, and transfers data input from the network 3 including the public line by determining an appropriate device from the connected devices. Alternatively, it manages data transfer processing between devices connected to the connection control device 7101.

  The playback device 7102 acquires and displays the list information of programs recorded on the recording medium 26 in the reception device 4 via the network, and plays back the desired program by receiving data via the network and viewing it. Device. As a specific method of controlling content via a network, for example, it may be based on a formulated specification such as DLNA (Digital Living Network Alliance).

  The recording / reproducing apparatus 7103 has a recording medium, and acquires / displays the list information of programs in the receiving apparatus 4 in the same manner as the reproducing apparatus 7102, and receives and views the desired program via the network for receiving and receiving data. Data of an arbitrary program in the device 4 can be copied to a recording medium and used. In the data output procedure of the receiving device 4, the CPU 21 converts the program information into a format suitable for network transfer, and outputs it from the network I / F 25 to the network 3.

  In order to output the video / audio data, the recording / reproducing unit 27 reads out the program data recorded on the recording medium 26, and the CPU 21 performs appropriate encryption processing for transmission to the network by the recording / reproducing control unit. Output from I / F25.

  On the contrary, the receiving device 4 acquires / displays the list information of the programs recorded on the recording medium in the recording / reproducing device 7103, receives the desired program over the network and views it, It is also possible to copy program data to the recording medium 26 for use.

  In the device connection configuration shown in FIG. 71, FIG. 72 shows an example of displaying a list of programs recorded on the recording medium 26 on the playback device 7102. Reference numeral 7201 denotes an area for displaying a list of devices connected via the network. The user can call up program information from a desired device by operating the up and down keys of the remote controller.

  Reference numeral 7202 denotes a selection button for moving up one level. Reference numeral 7203 denotes an area for displaying a list of programs recorded in the selected folder of the selected device. In this example, in addition to the program name, recording date and time, and recording time length, in FIG. 72A, an icon indicating that is displayed for the 3D program.

  When a list of programs recorded on the recording medium 26 is displayed, for example, the 3D / 2D identification information of the program information data is obtained together with information on the program name and the program length through the network. An easy-to-understand display such as displaying is possible.

  On the other hand, when the playback device 7102 does not support 3D playback or the like and does not hold icon data for 3D programs, such display is impossible.

  FIG. 72 (b) shows a case where the receiving apparatus 4 corrects the program name at the time of recording and records the character string “[3D]” on the recording medium 26 in the reproducing apparatus 7102 as described with reference to FIG. An example of displaying a list of recorded programs is shown. Thus, even when the playback device 7102 does not hold icon data for 3D programs, the user can identify which program is a 3D program.

  Reference numeral 7204 denotes an area for displaying a user's operation guide, similar to 6505. The setting contents in 6505 may be different, such as assigning a function for returning the display screen to the previous state without assigning a function to the “red” and “blue” buttons.

  The same applies to the case of displaying on the recording / reproducing apparatus 7103 and the case of displaying the list of recorded programs in the recording / reproducing apparatus 7103 on the receiving apparatus 4.

  The apparatus can be connected by directly connecting the reproduction apparatus 7102 and the diagnosis apparatus 4 as a configuration for realizing the above embodiment. Also, a larger number of playback devices, recording / playback devices, or reception devices than those shown in FIG. 71 may be connected, and connection control devices may be combined in multiple stages. Each device and the connection control device may be connected by a wireless network. Even in such a different connection configuration, it is possible to view the recorded program of the receiving device 4 from the connected playback device in the same manner as the playback device 7201. It is also possible to browse a recorded program of another recording device from the receiving device 4.

  When the playback apparatus 7102 is an apparatus that cannot display 3D, the reception apparatus 4 may recognize the characteristics of the playback apparatus 7102 in advance and do not send 3D content information. FIG. 73 shows a sequence.

  In 7301, the playback device 7102 makes an inquiry to the reception device 4 for a list of contents via the network. In 7302, the CPU 21 of the receiving apparatus 4 determines whether or not the 3D program can be reproduced, for example, by acquiring the model information of the reproducing apparatus 7102. If it is determined that reproduction is not possible, the process proceeds to 7304. If reproduction is possible or unknown, the process proceeds to 7303.

  In 7303, a list of recorded programs including 3D program information is sent, and the process ends. In 7304, a list of recorded programs is sent without including 3D program information, and the process ends. As a result, when the playback device 7102 cannot play back the 3D program, when displaying the list of recorded programs in the recording medium 26 of the receiving device 4, without displaying extra information (information of the 3D program that cannot be played back). It is easy to use because it is completed.

  Alternatively, when the playback device 7102 cannot display 3D, the recorded program information is transmitted including the 3D program, and when the user selects and plays back the 3D program on the playback device 7102, the 3D program is converted into 2D in the reception device 4. Then, the user-friendliness may be improved by outputting video data.

<Example of data copy / move processing via network>
In the configuration as shown in FIG. 71, for example, data recorded on the recording medium of the receiving device 4 can be copied / moved to the recording medium of the recording / reproducing device 7103 via the network. The CPU 21 of the receiving device 4 converts the program information and recorded program data into a transmission signal in a format suitable for a format defined by the network transmission path (for example, a format defined by DLNA), and performs the procedure specified by the network transmission path. Send data in a suitable way.

  For example, first perform device authentication to check whether the source and destination devices can be copied / moved without problems, and once authentication is established, if the data is moved, the source data cannot be reproduced. Disable, transmit program information in a specified format (for example, XML format), transfer recorded program data in a specified format (for example, MPEG-TS format with DTCP-IP encryption), and complete the transfer to the end Then, close the session. The recording / reproducing apparatus 7103 converts the transmitted data into a data format and encryption method specified for recording the data in the apparatus as appropriate, and records the data on a recording medium.

  If the 3D / 2D identification information is defined by the data format on the network transmission path and the data format when recording in the recording / reproducing device 7103, the data information is recorded / reproduced as program information of the recording / reproducing device 7103. Equivalent information is retained and user convenience is improved. The 3D system identification information may be transmitted in the same manner.

<Dubbing processing example between recording media>
As usage scenes of 3D / 2D discrimination information, there are data copying and movement (generically called dubbing) between recording media. For example, when a plurality of recording media can be connected to the receiving device 4 via the recording / reproducing unit 27, dubbing from one recording medium to another recording medium is possible.

  In addition, if the recording medium has portability such as an optical disk, the user can reproduce the dubbed data with yet another reproducing apparatus. FIG. 74A shows a display screen when dubbing target data is selected from recorded programs recorded on the recording medium 26.

  The program list display area 6504 displays whether each program can be copied or the number of times that the program can be copied as information relating to dubbing. For example, a program marked “copy prohibited” cannot be moved or copied, a program indicated as “move” can be moved (the original data can be deleted when data is moved to another device), and “copy N times” is indicated. The program is displayed such that (N-1) copies can be copied (the last one is a move).

  Among them, icons and the like that can be easily discriminated for 3D programs are displayed in the same manner as in the display example of the recorded program list. As a result, even when dubbing is performed, the user can easily determine the 3D program.

  When performing dubbing, the folder / file structure may differ depending on the type of the recording medium at the movement source and the recording medium at the movement destination. Therefore, the CPU 21 understands in advance the data format to be recorded of the movement source and the movement destination, and appropriately converts the information to be recorded (program information, thumbnail file, recorded video / audio data) to the transfer destination format and performs dubbing. However, it is not necessary to move all information.

  For example, if the 2D / 3D identification information is not defined in the program information of the data format that the destination recording medium follows, the CPU 21 cannot record the 3D / 2D identification information at the destination. Alternatively, if the thumbnail image data is large and is not an essential recording item according to the destination recording medium, the thumbnail image data may not be dubbed in consideration of the time to complete the dubbing operation. is there.

  When the 2D / 3D identification information is not dubbed due to the data format of the destination recording medium as described above, for example, a character string such as “[3D]” is added to the program name as described in the previous embodiment. As a result, the user can see the program name and understand whether it is 3D or not, so that convenience can be improved.

  FIG. 74B shows a display example of a list of recorded programs in the optical disc after dubbing is performed after the program name is changed from the recording medium 26 to the optical disc, and dubbing is completed. Even if there is no icon display as shown in FIG. 74A, the user can easily identify a 3D program by the program name. If the dubbing is executed together with the 2D / 3D identification information, the icon may be displayed in FIG. 74 (b). Similarly, 3D system identification information may be displayed in FIG. 74 (b) as long as the information can be taken over during dubbing.

DESCRIPTION OF SYMBOLS 1 Transmission apparatus 2 Relay apparatus 3 Network 4 Reception apparatus 10 Recording / reproducing part 11 Source generation part 12 Encoding part 13 Scramble part 14 Modulation part 15 Transmission antenna part 16 Management information 17 Encryption part 18 Channel encoding part 19 Network I / F Part 21 CPU
22 General-purpose bus 23 Tuner 24 Descrambler 25 Network I / F
26 Recording medium 27 Recording / reproducing unit 29 Demultiplexing unit 30 Video decoding unit 31 Audio decoding unit 32 Video conversion processing unit 33 Control signal transmission / reception unit 34 Timer 41 Video output unit 42 Audio output unit 43 Control signal output unit 44 Device control signal transmission 45 User operation input 46 High-speed digital interface 47 Display 48 Speaker 51 System control unit 52 User instruction reception unit 53 Device control signal transmission unit 54 Program information analysis unit 55 Time management unit 56 Network control unit 57 Decoding control unit 58 Recording / playback control unit 59 Station control unit 60 OSD creation unit 61 Video conversion control unit

Claims (2)

  In a receiving device capable of receiving a digital signal for transmitting a program and displaying the program,
  The digital signal is in MPEG transport stream format,
  The MPEG transport stream of the digital signal includes a video elementary stream and an event information table describing program information related to a program included in the digital signal,
  In the event information table, first identification information indicating whether or not 3D video is included in the program included in the digital signal can be arranged,
  The first identification information is information that can be arranged in program units in the event information table,
  Second identification information is arranged in the video elementary stream of the MPEG transport stream of the digital signal,
  The second identification information is for identifying whether the video in the video elementary stream of the digital signal is a 3D video or a 2D video, and enables video identification in units of pictures. In order to do so, it is information that can be arranged in units of pictures in the video elementary stream,
  A receiver for receiving the MPEG transport stream of the transmitted digital signal;
  A decoding unit that decodes the video elementary stream of the MPEG transport stream received by the receiving unit;
  An output unit for outputting program information related to a program included in the digital signal received by the receiving unit or a video decoded by the decoding unit;
  A control unit that controls the receiving unit, the decoding unit, and the output unit;
  In the control state by the control unit,
  According to the first identification information indicating whether or not 3D video is included in the program included in the digital signal, which is arranged in the event information table, 3D video is included in the program included in the digital signal. A first control state for controlling to output to the output unit information about whether to include,
  According to the second identification information arranged in the video elementary stream of the MPEG transport stream of the digital signal, the output state of the video obtained by decoding the video elementary stream is changed and the video is output to the output unit. And a second control state for controlling to output to
  In the second control state, when the second identification information does not exist in the video elementary stream of the MPEG transport stream of the digital signal, the video in the video elementary stream of the digital signal is determined to be 2D video. And outputting the video to the output unit,
  A receiving apparatus.   In a receiving method in a receiving apparatus capable of receiving a digital signal for transmitting a program and displaying the program,
  The digital signal is in MPEG transport stream format,
  The MPEG transport stream of the digital signal includes a video elementary stream and an event information table describing program information related to a program included in the digital signal,
  In the event information table, first identification information indicating whether or not 3D video is included in the program included in the digital signal can be arranged,
  The first identification information is information that can be arranged in program units in the event information table,
  Second identification information is arranged in the video elementary stream of the MPEG transport stream of the digital signal,
  The second identification information is for identifying whether the video in the video elementary stream of the digital signal is a 3D video or a 2D video, and enables video identification in units of pictures. In order to do so, it is information that can be arranged in units of pictures in the video elementary stream,
  Receiving the MPEG transport stream of the transmitted digital signal;
  A decoding step of decoding the video elementary stream of the MPEG transport stream received in the receiving step;
  Outputting the program information related to the program included in the digital signal received in the receiving step or the video decoded in the decoding step, and
  In the output state in the output step,
  According to the first identification information indicating whether or not 3D video is included in the program included in the digital signal, which is arranged in the event information table, 3D video is included in the program included in the digital signal. A first output state that outputs information about whether or not to include in the output step;
  According to the second identification information arranged in the video elementary stream of the MPEG transport stream of the digital signal, the output step of changing the output state of the video obtained by decoding the video elementary stream is the output step. There is a second output state that is output at
  In the second output state, when the second identification information does not exist in the video elementary stream of the MPEG transport stream of the digital signal, the video in the video elementary stream of the digital signal is determined as 2D video. And outputting the video in the output step,
  And a receiving method.

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