JP2003235003A - Digital broadcast system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for distributing contents of each program in details at one time point and famous scenes or the like on other time point by means of a moving picture so as to provide a sense of greater depth to the contents of each program and allowing a viewer to easily utilize each program by linking a sub-service to each program. <P>SOLUTION: Sub-services defined by a PMT (Program Map Table) is integrated in transport streams TS by the SI similarly to the case with other program and the system delivers as required a reproduction or re-edit digest version of other program contents. Further, a sub-service identifier is newly defined to a PES packet stream ID of the sub-service for a receiver to recognize the sub-service. Moreover, in order to link the sub-service to its related program, PID information of the PMT of the program related to a reserve area of PES extension filed of a sub-service PES packet is newly defined. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes at least one subservice-dedicated program in a TS, the contents of which are additional information of related other programs in the same TS, and linked with those programs. The present invention relates to a digital broadcasting system including program content production, an editing station, a broadcasting station, and a receiver, which allows a viewer to easily view or record additional information.

[0002]

2. Description of the Related Art When there is at least one data-dedicated program in a TS, when a program other than that is being viewed, an indicator of "data broadcast" is displayed on the screen and the viewer is the data viewing button of the remote controller. When a text button or the like is pressed, the contents are arranged on the screen according to the mapping defined in the data broadcast.

FIG. 5 is a diagram showing an arrangement example on a monitor screen when an image of TS structure and a data program are received. In FIG. 5, 501 is a program in which PMT is defined as A, and 502 is PMT is a program defined by B, 503 is a program whose PMT is defined by C, 504 is a program whose PMT is defined by Y, 5
Reference numeral 05 denotes a data service dedicated program in which PMT is defined by Z, and these programs 501, 502, 503, 504, and data service dedicated program 505 form one TS. The horizontal axis of this TS is represented by the elapsed time t. 506 is a case of viewing the program 501, 5
Reference numeral 07 indicates a case where the program 501 is viewed, 508 indicates a case where the program 503 is viewed, and 509 indicates a case 50.
6 and case 507, the viewer presses the text button to select whether or not to enter the viewing mode of the data service dedicated program 505. Reference numeral 510 is the same as case 509. In case 508, the viewer presses the text button to select the data service dedicated program 505. Selection to enter viewing mode, 511 is an indicator that each program indicates to the viewer that the data service dedicated program 505 exists in the TS, 512 is data included in the data service dedicated program 505, and 513 is a data service dedicated program. Data included in the data service 505, 514 is data included in the data service dedicated program 505, 51
5 is data 51 arranged on the monitor screen when the viewer presses the text button in the selection 509 and enters the viewing mode of the data service dedicated program 505.
2, one arrangement example including data 513 and data 514, 5
16 is the content of the program 501, 517 is the selection 5
A case where the viewer presses the text button to enter the viewing mode of the data service dedicated program 505 in 09, and 518 returns to the viewing mode of the original program 501 by pressing the text button again when the viewer wants to exit the viewing mode of the data service dedicated program 505. Route, 51
9 is a case where the viewer presses the text button in the selection 510 to enter the viewing mode of the data service dedicated program 505, and 520 is the data service dedicated program 5
This is a route to return to the viewing mode of the original program 503 by pressing the text button again when it is desired to exit the viewing mode of 05.

Data service dedicated program 5 in TS
05 exists, data service dedicated program 505
Since other programs 501, 502, 503, and 504 are notified of the presence of the data service on the screen by the indicator 511, the data service dedicated program 505 exists regardless of which program is received while receiving this TS. It is a mechanism that makes it easy to understand things.

When the data service dedicated program 5 exists in the TS, each of the other programs 501, 502, 50
3 and 504 are notified by the indicator 511, the viewer inputs a text button which is a data program viewing key of the remote controller, and switches to the data service dedicated program viewing mode, the data is passed under the control of the data service dedicated program 505 through the case 517. 51
2, the data 513, the data 514, and the program 501 being viewed before switching to the data service dedicated program viewing mode are sequentially taken in, and an image such as one arrangement example 515 is output on the monitor screen.

To exit from the data service dedicated program viewing mode, enter the data service dedicated program viewing key such as a text button again to obtain the route 51.
8 to return to the viewing mode of the original program 501. This is not limited to switching from the program 501 to the data service dedicated program viewing mode, and is the same as switching from the program 503 to the data service dedicated program viewing mode.
Content 51 of the program 501, which is one component of the
Only the part 6 changes to the content display of the program 503.

[0007] Further, the data service dedicated program 505
The contents, layout specifications on the monitor screen, and link contents are updated at any time, and the latest data is always viewed with the latest specifications when the viewer switches to the data viewing mode.

[0008]

However, in the case of the data service dedicated program 505 as described above, the content is only data such as a still image and text, and the reproduction of other programs and the editing station of the contents of each program. We do not re-edit in real time and link only related programs depending on the situation.

According to the present invention, when the contents of each program content are detailed, when detailed, the name scene or the like is distributed as a moving image to increase the thickness of each program content.
And it is a system that viewers can easily use by linking with each program.

[0010]

The digital broadcasting system of the present invention incorporates a sub-service defined by PMT into a TS in the same manner as other programs by SI, and reproduces or re-edits other program contents as necessary. In addition to the contents of each conventional program by playing the digest version etc., linking it with related programs and playing and recording according to the viewer's preference, it is a more complete service by adding the above sub-services Can be provided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention of claim 1 of the present invention is to be transmitted between an editing station for digital broadcasting, a transmitter capable of transmitting digital broadcasting, and a receiver capable of receiving the same. A sub service dedicated program that is PMT-managed by the SI in the TS as well as other programs is prepared. Before the sub service starts with this sub service dedicated program, the viewer watching the program is notified on-screen of the monitor that the sub service is about to start.

Next, the viewer can select whether to switch to the sub-service or to continue watching the program as it is. When switching to the sub-service, pressing the prepared remote control key for switching, the video and audio being watched. Is switched to the content of the program dedicated to the sub-service, and when it is finished, the original program is automatically returned, and the additional information of the program the viewer is viewing can be referred to. Specific examples of use include reproduction of a soccer goal scene with sound, reproduction of a baseball home run scene with sound, and scene reproduction from different angles.

According to a second aspect of the present invention, when the sub-service dedicated program is a data storage type and the receiver is decoding a program other than the sub-service, the sub-service packet is also taken in at the same time, and the packet It is necessary to have a memory function capable of accumulating data, and when the packet capture is completed, the viewer watching the related program is notified on-screen of the sub service that the sub service is available.
The advantage of this is that since it is a storage type, the viewer can view the sub-service at any time and any number of times.

According to a third aspect of the present invention, as in the second aspect, the sub-service-dedicated program is a data storage type, and the receiver has an IEEE 1394 function instead of the memory function described in the second aspect. While the receiver is decoding a program other than the sub-service, the sub-service packet is output to the IEEE 1394 at the same time and the sub-service dedicated program packet is recorded in the VTR connected via the IEEE 1394. Upon completion, it will notify viewers of the related program on-screen on the monitor that the sub-service is available upon completion of recording.

According to the invention of claim 4 of the present invention, V in claim 3
When a viewer plays back sub-service contents by allocating a part of the sub-service-dedicated program data sent to the TR to a banner advertisement, the banner advertisement is also played back by occupying a part of the screen.

Embodiments of the present invention will be described below with reference to FIGS. 1, 2, 3, and 4.

(Embodiment 1) FIG. 1 shows an image of a TS structure and a PES packet structure.
01 is a program in which PMT is defined by A, 102 is P
MT is a program defined by B, 103 is PMT by C
, 104 is a program whose PMT is defined as Y, and 105 is a sub-service dedicated program whose PMT is defined as Z. These programs 1
01, the program 102, the program 103, the program 104, and the sub-service-dedicated program 105 constitute one TS. The horizontal axis of this TS is the elapsed time t
It is represented. Reference numeral 106 indicates a case of viewing the program 101, 107 indicates a case of viewing the program 101, 108 indicates a case of viewing the program 103, 10
In case 106, the viewer presses the text button in case 106 and case 107, and the sub service dedicated program 105
Selection of whether or not to enter the viewing mode, 110 is selection 109
In the case where the viewer presses the sub-service viewing button to enter the viewing mode of the sub-service dedicated program 105, 111 is a program for linking the packet content of the sub-service dedicated program 105 with the related program 101 when the packet is not an empty packet. 10
1 standby indicator, 112 is an empty packet included in the sub-service dedicated program 105, 113 is a sub-service for the program 101 included in the sub-service dedicated program 105, 114 is an empty packet included in the 105, 115 is a sub-service for the program 101 11
A route for automatically returning to the viewing mode of the original program 101 when 3 is finished, and 116 indicates the contents of the packet when the constituent packet of the sub-service dedicated program 105 is not an empty packet, like the standby indicator 111 for the program 101. The standby indicator for the program 103 to be linked with the program 103, 117 is the selection of whether the viewer presses the sub service viewing button in the case 108 to enter the viewing mode of the sub service dedicated program 105 in the same way as the selection 109, and 118 is selected. In 117, the viewer presses the sub-service viewing button to enter the viewing mode of 105,
Reference numeral 119 denotes a sub-service for the program 103 included in the sub-service dedicated program 105, 120 denotes a route for automatically returning to the viewing mode of the original program 103 when the sub-service 119 for the program 103 ends, 1
21 is an empty packet included in the sub-service dedicated program 105, and 122 is the sub-service 1 for the program 101.
13 or a PES packet configuration that is the details of the sub-service 119 for the program 103, 123 is a 24-bit packet start header, 124 is an 8-bit stream ID, 125 is a 16-bit PES packet length display,
126 is a PES header option, 127 is an option field, 128 is a PES extension, 129 is a PES extension field, and 130 is PES packet data.

Program 10 dedicated to sub-service in TS
The detailed structure of No. 5 is represented by the PES packet structure 122, and it is identified to the receiver by the stream ID 124 whether the PES packet is a sub service, another packet, or an empty packet. The identification ID of the sub-service will be newly defined by mapping to an address currently reserved according to the MPEG2 standard. Further, it is possible to identify which program the PES packet of the sub-service is related to by P in the option field 127 in the PES header option 126.
MP in PES extension field 129 in ES extension 128
Since the EG2 standard currently has a reserved area, the PID information of the PMT of the program related thereto is newly defined. The receiver can extract the PMT PID in the PES extension field 129 and identify which program it is.

The receiver recognizes the PES packet in the sub-service dedicated program 5 with the stream ID 124 as the sub-service packet, and then P
If the video stream ID or audio stream ID extracted from the PMT PID in the ES extension field 129 matches the video stream ID or audio stream ID of the program currently being viewed by the viewer, the standby indicator 11
Alternatively, 116 is issued and a symbol indicating that the sub-service 113 or 119 is available is output on the screen.

When the symbol is output, the viewer can select whether to switch to the sub-service by pressing the sub-service viewing key prepared by the remote control. If the key is not pressed, the viewer can continue to view the program 101. it can. When the key is pressed, the program 105 is switched to the sub-service dedicated program 105, and the program can be viewed through the case 110.

When the sub-service 113 or the sub-service 119 ends, the program 101 or 103 that was originally viewed is automatically restored.

When the sub-service 113 or the sub-service 119 does not exist in the sub-service dedicated program 5, the stream ID 124 is the padding stream ID defined by the MPEG2 standard like the empty packet 112, the empty packet 114, and the empty packet 121. Send the packet shown. At this time, the PES extension field 129 is not read by the receiver and the PES packet data 1
All 30 are stuffing bytes.

By associating the sub-service in the sub-service dedicated program with another program in the form as described above, it is possible to provide a more fulfilling service.

(Second Embodiment) FIG. 2 is an image diagram of a TS structure. In FIG. 2, 201 is a program in which PMT is defined by A, 202 is a program in which PMT is defined by B, and 203 is PMT by C. A defined program,
Reference numeral 204 is a program in which PMT is defined as Y, and 205 is a sub-service dedicated program in which PMT is defined as Z. These programs 201, 202,
The program 203, the program 204, and the sub-service dedicated program 205 form one TS. The horizontal axis of this TS is represented by the elapsed time t. 20
6 is the case of viewing the program 1, 207 is the case of viewing the program 201, and 208 is the program 203.
, 209 is a sub-service for the program 201 included in the sub-service dedicated program 205,
Reference numeral 210 is a standby indicator for the program 201, which informs the viewer of the related program 201 that the recording of the sub-service dedicated program 205 is completed in the memory of the receiver when the constituent packet of the program 205 is not an empty packet.
Reference numeral 1 indicates whether or not the viewer presses the sub-service viewing button to enter the viewing mode of the sub-service dedicated program 205 in cases 206 and 207, and 212 indicates the recorded sub-service 209 for the program 201 on the memory of the receiver. , 213 is the subservice reproduced from the memory of the receiver again, 21
Reference numeral 4 is a sub-service for the program 203 included in the sub-service dedicated program 205, and 215 is a viewer of the related program 203 indicating that recording is completed in the memory of the receiver when the constituent packet of the sub-service dedicated program 205 is other than an empty packet. A standby indicator 216 for the program 203 to notify the user is selected in case 208 whether or not the viewer presses the sub-service button to enter the viewing mode of the sub-service dedicated program 205.
217 is the sub-service 2 for the recorded program 203
14 is a sub service reproduced from the memory of the receiver,
218 is a standby indicator 2 for the program 203
After 15 is displayed, select option 216 to select program 2
Elapsed time according to the viewer's preference before viewing the 03 sub-service 214, 219 is an empty packet included in the sub-service dedicated program 205, 220 is the program 202 sub-service included in the sub-service dedicated program 205, 221 Is a sub-service dedicated program 2
A program 202 relating to the fact that the recording of the configuration packet of 05 has been completed in the memory of the receiver at the time other than the empty packet.
The standby indicator 222 for the program 202 that informs the viewer of the program is shown in case 225 when the viewer presses the sub service button and the program 2 dedicated to the sub service is displayed.
Selection of whether to enter the viewing mode of 05, 223 is a sub service in which the recorded sub service 220 for the program 202 is reproduced from the memory of the receiver, 224 is an empty packet included in the sub service dedicated program 205, 2
25 is a case of viewing the program 202.

The receiver uses the sub service dedicated program 20.
The means for identifying whether the PES packet in 5 is a sub service or an empty packet, and if it is a sub service, which program it is associated with, is the same as that described in the first embodiment. Since it is exactly the same, it is omitted.

The receiver uses the sub service dedicated program 20.
If the sub-service 209 for the program 201 related to the program 201 is detected in step 5, the sub-service 209 for the program 201 is recorded in the memory in parallel with the program 201 already viewed, and if completed, the standby for the program 201 is completed. The indicator 210 is displayed on the screen to notify the viewer. The viewer may immediately reproduce the sub-service 209 for the program 201 as in the selection 211, or may reproduce the sub-service 209 for the program 201 after a while as in the time 218. Also, since it is recorded in the memory, it can be viewed any number of times unless the power of the receiver is turned off.

By associating the sub-service in the sub-service dedicated program with another program and recording the program in the form as described above, it is possible to provide a more fulfilling service.

(Embodiment 3) FIG. 3 is an image diagram of a TS structure and a VT similar to a receiver equipped with IEEE1394.
FIG. 3 is a diagram in which R is connected by IEEE 1394, and in the figure, 301 is a program in which PMT is defined by A, 302
Is a program in which PMT is defined by B, and 303 is PMT
Is a program defined in C, 304 is a program in which PMT is defined in Y, and 305 is a sub-service dedicated program in which PMT is defined in Z. These programs 301, 302, 303, 304, 304 The service dedicated program 305 constitutes one TS. The horizontal axis of this TS is represented by the elapsed time t. Reference numeral 306 relates to the case where the program 301 is viewed, 307 relates to the sub-service for the program 301 included in 305, and 308 relates to the fact that the recording is completed in the memory of the receiver when the constituent packet of the sub-service dedicated program 305 is not an empty packet. A standby indicator for the program 301 to notify the viewer of the program 301, 309 is an empty packet included in the sub-service dedicated program 305, and 310 is IEEE13.
A receiver equipped with 94, 311 is a VTR equipped with IEEE 1394, and 312 is an IEEE 1394 connection line.

The receiver uses the sub service dedicated program 30.
The means for identifying whether the PES packet in 5 is a sub service or an empty packet, and if it is a sub service, which program it is associated with, is the same as that described in the first embodiment. Since it is exactly the same, it is omitted.

The receiver is the sub service dedicated program 30.
If the sub-service 309 for the program 301 related to the program 301 is detected in 5, the sub-service-dedicated program 3 in parallel with the program 301 already viewed
The TS header is added to the 05 elementary stream, and the sub service 7 for program 1 is recorded from the IEEE 1394 port equipped in the receiver to the VTR connected by IEEE 1394 to the outside. Indicator 308
Is displayed on the screen to inform the viewer. The viewer reproduces the content of the sub-service-dedicated program 305 recorded in the VTR as in the case of the second embodiment, because there is no time limitation, and the description thereof will be omitted. However, since the data is recorded in the VTR in the third embodiment, the recording is not erased even if the power of the receiver is once turned off, unlike the case of recording the data in the memory of the receiver as in the second embodiment. It can be regenerated.

By associating the sub-service in the sub-service dedicated program with another program and recording the program in the form as described above, it is possible to provide a more fulfilling service.

(Embodiment 4) FIG. 4 is a diagram in which the recorded sub-service is reproduced on the screen. In FIG.
1 is the content of the sub-service recorded on the VTR, 4
Reference numeral 02 is a banner advertisement and 403 is a monitor screen.

By adding the banner advertisement to the content recorded in the VTR described in the third embodiment, the banner advertisement is reproduced every time the viewer reproduces the content, and the advertisement can be effectively advertised to the viewer. Have.

[0034]

As described above, according to the present invention, S
As in other programs, subservices defined by PMT by I are incorporated into TS, and other stream contents can be played or re-edited as necessary to send digest versions, etc., linked with related programs, and viewer's preference. The system is capable of providing a more fulfilling service by adding the above-mentioned sub-services in addition to the contents of each conventional program by reproducing and recording according to the above.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a digital broadcasting system according to an embodiment of claim 1 of the present invention.

FIG. 2 is an explanatory diagram of a digital broadcasting system according to an embodiment of claim 2 of the present invention.

FIG. 3 is an explanatory diagram of a digital broadcasting system according to an embodiment of claim 3 of the present invention.

FIG. 4 is an explanatory diagram of a digital broadcasting system according to an embodiment of claim 4 of the present invention.

FIG. 5 is an explanatory diagram of a digital broadcasting system using conventional data broadcasting.

[Explanation of symbols]

101 program 102 program 103 program 104 program 105 sub service dedicated program 106 program viewing case 107 program viewing case 108 program viewing case 109 sub service dedicated program selection of whether to enter the program viewing mode 110 sub service dedicated Case of entering program viewing mode, 111 Standby indicator for linking program, 112 Empty packet included in sub-service dedicated program 113 Sub-service for program included in sub-service dedicated program 114 Empty packet included in sub-service dedicated program 115 yuan Route to return to program viewing mode, 116 Program standby indicator 117 Sub service Select whether or not to enter the viewing mode of the dedicated program 118 Case in which the sub-service viewing button is pressed to enter the viewing mode 119 Sub-service for the program included in the dedicated program of the service 120 Route to return to the viewing mode of the original program 121 Sub Empty packet included in the service dedicated program 105 122 PES packet structure 123 24-bit packet start header 124 8-bit stream ID 125 16-bit PES packet length display 126 PES header option 127 option field 128 PES extension 129 PES extension field 130 PES packet data 201 Program 202 Program 203 Program 204 Program 205 Sub-service dedicated program 206 View program Case 207 Watching a program Case 208 Watching a program 209 Program sub-service 210 included in the sub-service dedicated program Program standby indicator 211 for informing the viewer of a related program Whether to enter the viewing mode of the sub-service dedicated program Selection 212 a subservice 213 in which the recorded program subservice is reproduced from the memory of the receiver, a subservice 214 reproduced from the memory of the receiver again, and a subservice 215 for a program included in the subservice dedicated program Program standby indicator 216 to notify the viewer of the program to be played Select whether to enter the viewing mode of the program dedicated to the sub service 217 Play the sub service from the memory of the receiver Sub service 218 Elapsed time according to viewer's preference after the standby indicator is displayed until the sub service for viewing after selection 219 Empty packet 220 included in the dedicated program for sub service 220 Included in program dedicated for sub service Program sub-service 221 Program standby indicator 222 that informs the viewer of the related program Select whether to enter the viewing mode of the sub-service dedicated program 223 View the sub-service 224 program reproduced from the memory of the receiver Case 301 Program 302 Program 303 Program 304 Program 305 Sub-service dedicated program 306 Watch program 307 Watch program Case 308 Watch program Case 309 Empty packet included in sub-service dedicated program 310 Receiver 311 with IEEE 1394 VTR 312 with IEEE 1394 312 Connection with IEEE 1394 Connection line 401 Sub-service content recorded on VTR 402 Banner advertisement 403 Monitor screen 501 Program 502 Program 503 Program 504 Program 505 Data service dedicated program 506 Program viewing case 507 Program viewing case 508 Program viewing case 509 Select whether to enter the data service dedicated program viewing mode 510 Enter the data service dedicated program viewing mode Selection 511 Indicator 512 indicating existence in TS 512 Data included in data service dedicated program 13 Data included in data service-dedicated program 514 Data included in data service-dedicated program 515 Arrangement example on monitor screen 516 Program content 517 Case of entering data service-dedicated program viewing mode 518 Original program viewing mode Route 519 to return to the viewing mode of the data service dedicated program 520 Route to return to the viewing mode of the original program

Claims (4)

[Claims] 1. A digital broadcast editing station, a transmitter capable of transmitting digital broadcasts, and a receiver capable of receiving the same, wherein a program of any other program is included in a transport stream (TS) to be transmitted. There is at least one program (hereinafter, sub-service-dedicated program) that includes content that supplements the content, and PM is provided in the service information (hereinafter, SI) like other programs.
It is managed by T, and has a means to notify a viewer who is watching the program by linking with other related programs when the sub-service starts in this sub-service dedicated program, and the viewer switches to the sub-service or remains as it is. You can choose whether or not to continue watching the program, and when you switch to the sub-service, the video and audio you are watching switches to the content of the program dedicated to the sub-service, and when it finishes, it returns to the original program and the viewer watches it. A digital broadcasting system characterized by being able to refer to additional information, etc., of the programs in use. 2. The sub-service-dedicated program is a data storage type, and when the receiver is decoding a program, the sub-service is simultaneously decoded and has a memory function capable of storing the data, so that the viewer is free to do so. The digital broadcasting system according to claim 1, wherein the sub-service content can be reproduced and viewed any number of times at any time. 3. A sub-service-dedicated program notifies a viewer who is watching a related program when the sub-service starts, and the receiver sends the sub-service content to an external VTR or the like via a known IEEE 1394. The digital broadcasting system according to claim 1, wherein the digital broadcasting system can record automatically. 4. The sub-service dedicated program data is partly applied to a banner advertisement, and each time the viewer plays the sub-service content, the banner advertisement is also played back by occupying a part of the screen. The digital broadcasting system according to items 2 and 3.