JP2002135755A - Interactive data broadcasting system and its receiving apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow broadcast contents desired by a viewer to be viewed by acquiring information on a viewer's interest and preference which is utilized by both a sending side and a receiving side of the information. SOLUTION: An interactive data broadcast system for servicing contents, wherein access frequency is acquired and processed (access history data generation/accumulation unit 31) as access history data to the contents desired by a viewer by using physical quantity representing the contents, and the access history data is filtered by polling from the transmission side (a transmitter 1) for collection, so that a problem of congestion in an incoming channel in the interactive system of large scale such as broadcast is reduced, a trend of desired contents is grasped, and changing of transmission frequency of data to be transmitted is controlled by the transmission side. Furthermore, particular contents are preferentially received by the receiving side (a receiver 2) in accordance with the data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast content desired by a viewer by acquiring interest information such as a hobby and preference information of the viewer and using the information on both a transmitting side and a receiving side. The present invention relates to a two-way data broadcasting system and a receiving device for making it possible to view a broadcast.

[0002]

2. Description of the Related Art Conventionally, in a two-way data broadcasting system, the transmission frequency and contents of data to be transmitted are determined in advance, and uniform broadcast contents are transmitted and received accordingly. At this time, when trying to directly grasp the viewing trend of the viewer, a keyword is frequently used as an expression of the hobby and preference of the viewer.
And when using this keyword, processing such as extracting from what the viewer is always watching, comparing and saving becomes very complicated, and processing for linking the keyword with the actual content becomes necessary. I have.

On the other hand, as a method of data broadcasting using response data of a viewer, there is a method in which response data such as quiz answers are collected on the transmission side, the results are totaled, and the program is advanced. At this time, as one method of deepening the connection with the viewers in the broadcast, means for directly returning information such as a direct answer to each viewer or a message of congratulation to the correct answer is desired.

[0004]

In the above-mentioned prior art, for example, in order for a viewer to notify a desired content to a receiving apparatus, it is necessary to register a keyword on some setting screen. Therefore, the process of linking the keyword and the content is complicated and inconvenient. Also,
If the information of the desired content is stored as characters,
Although the viewer's intention is accurately reflected, the process of comparison with the received data is very complicated, and the probability of matching is low.

[0005] Further, when a viewer views desired content immediately from a broadcast data content without a waiting time, the viewer receives all the data at once instead of receiving the data each time the viewer operates. It is necessary to receive it, and a sufficient memory is required on the receiving device side. Also, when collecting response data from a receiving device on the transmitting side, simply collecting data from all receiving devices may cause problems such as congestion. Then, in order to deepen the connection with each viewer from the transmitting side, it is not practical to individually communicate with each other because a transmission medium having an extremely large transmission capacity is required.

The present invention has been made in view of the above problems, and obtains a contact frequency at which a viewer has accessed a content using a physical quantity representing the content, and retains the frequency as a history data. Judging that the higher the content is the content desired by the viewer and receiving it preferentially, immediately waiting for the content desired by the viewer without having to receive all the information being broadcast It is an object of the present invention to provide a two-way data broadcasting system and a receiving device thereof that enable viewing in a short time.

[0007] Further, the contact history data is filtered and collected by issuing polling on the transmitting side to reduce the problem of congestion on the uplink to grasp the viewing trend, and to respond to the response data. Another object of the present invention is to provide a two-way data broadcasting system and a receiving device thereof, which enable data broadcasting to satisfy viewers by changing the transmission frequency of the broadcast.

Further, when individual information is returned to each viewer based on response data from the viewer such as a quiz program, if the individual information is returned individually from the transmission side, an extremely large amount of transmission capacity is required. On the other hand, the information is divided into several patterns, and the information of all of these patterns is transmitted in a data broadcast, for example, collectively to all the receiving devices, and the individual information addressed to each viewer is the response of each viewer. By processing the data inside the receiving device, selecting from among those patterns and emitting individual information from each receiving device, information can be transmitted efficiently, and a broadcast form with a large service effect can be created. It is another object of the present invention to provide a two-way data broadcasting system and a receiving device thereof.

[0009]

According to an aspect of the present invention, there is provided an interactive data broadcasting system for providing contents, wherein a receiving side uniquely assigns the contents to each of the contents. Generates and accumulates a contact history of the receiving side for the content using the identification code to be stored, based on the contact history collected as response data of the receiving side to polling from the transmitting side,
An interactive data broadcasting system that preferentially transmits content desired by a viewer is provided.

[0010] With this configuration, the contact frequency of the viewer with respect to the content is acquired on the receiving side by using the physical quantity representing the content, and collected by using the response data held as the history data on the transmitting side. Then, by reusing the data, it becomes possible to transmit data more efficiently in accordance with information from the viewer such as the viewer's hobbies and preferences. Also, the receiving side can preferentially receive the content corresponding to the hobbies and preferences of the viewer.

According to a second aspect of the present invention, there is provided the interactive data broadcasting system for providing the contents according to the first aspect, wherein the individual information is returned to the viewer based on the response data on the receiving side. Side, the above information is divided into several patterns in advance, and information of all these patterns is transmitted to the receiving side, for example, collectively via data broadcasting, and the receiving side transmits the entire information based on the response data. A bidirectional data broadcasting system is provided in which a pattern addressed to each viewer is selected from the patterns, and individual information addressed to each viewer is generated on the receiving side based on this pattern.

[0012] With this configuration, the information to be sent to each viewer is not individual, and attention can be paid to the fact that the purpose can be achieved by selecting from several patterns. And send it to the receiving side, and when contacting each viewer, process the response data of each viewer inside the receiving side to select from these patterns and receive information such as individual messages It is supposed to originate from the side.

[0013] Further, the invention according to claim 3 is a receiving device used in the interactive data broadcasting system according to claim 1, wherein an identification code uniquely given to each of the contents from the transmission side is provided. A contact history data generating / accumulating means for generating and accumulating contact history data for the content in accordance with an operation of a viewer, and transmitting the contact history data as response data on a receiving side to polling from a transmitting side. And a data transmission means for transmitting the data to the receiving device of the interactive data broadcasting system.

[0014] With this configuration, the content desired by the viewer is processed as contact history data via the contact history data generating / accumulating means by using the physical quantity representing the content, and is polled by the transmitting side. By transmitting the contact history data to the transmitting side using the data transmitting means, it is possible to reduce the problem of congestion in the uplink, to grasp viewing trends and to change the frequency of transmitting data to be transmitted. It is possible to provide a receiving device that can receive specific content preferentially on the side according to the data.

The invention described in claim 4 is the same as the claim 2.
A receiving device used in the interactive data broadcasting system according to the above, addressed to each viewer based on the response data from among all pattern information addressed to the viewer sent from the transmitting side based on the response data Of the interactive data broadcasting system provided with individual information generating means for generating, on the receiving side, individual information addressed to each viewer based on the individual pattern information.

With this configuration, the viewer can receive the individual pattern information sent to each viewer via the individual information generating means without performing any special operation. . Further, the amount of memory required to obtain the same effect can be reduced.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of a transmitting device in the interactive data broadcasting system according to the present invention. Here, MPEG-2 (Moving Pictur
An example in which data transmission is performed in digital broadcasting conforming to the e coding Experts Group 2) system will be described with reference to the drawings. However, the present invention can be similarly applied to other similar broadcasting systems.

Hereinafter, a specific description will be given. The transmission device 1 illustrated in FIG. 1 includes a response data collection unit 11, a response data management unit 1,
2. It includes a transmission data management unit 13, a video / audio encoding unit 14, a data encoding unit 15, a multiplexing unit 16, a modulation transmitting unit 17, a transmission data determining unit 18, and a multiplexing control unit 19.

The response data collecting unit 11 is for issuing polling to an arbitrary receiving device 2 and collecting contact history data accumulated from a specific receiving device 2 as response data f.

The response data management unit 12 manages the collected response data f by performing processing such as selecting only information relating to the transmission channel on the transmission side. When returning individual information to each viewer based on the response data f from the viewer, the response data management unit 12 also performs processing for dividing the response data into several patterns.

The transmission data management unit 13 manages data broadcast contents, and outputs content data to the data encoding unit 15 and sends content information to the transmission data determination unit 18.

The transmission data determination unit 18 determines which content is transmitted and to what extent based on content history information using a physical quantity representing the content from the response data management unit 12 and content information from the transmission data management unit 13. It decides whether to transmit at a frequency, and outputs information to the multiplexing control unit 19.

For example, the transmission data deciding unit 18 determines whether the mo data for a specific first information group selected from arbitrary information is
There are many contact histories of contents corresponding to dule_id,
When the history of the content corresponding to the module_id for the information group is small, and the modu for the third information group
Assuming that the history of the content corresponding to le_id is average, the content of the third information group is weighted with the same weight as before, the content of the first information group is doubled, and the second information group is doubled. The content of the group is redistributed as a whole with half the weight as before, and each is transmitted.

Then, when individual information is returned to each viewer based on response data f from the viewer, the information is divided into several patterns, and the information of all these patterns is used for data broadcasting, for example. The transmission data determination unit 18 also determines whether to add new pattern information when transmitting the transmission data to all the receiving devices in a lump, and controls the transmission data management unit 13.

For example, when the answer such as a quiz is four choices, four patterns of information are prepared in advance, and a new message such as a message to the correct answerer of all the questions and a commentary on the answer with many mistakes is provided later. It is possible to add various pattern information.

Thus, in the response data from the viewer, it is possible to increase the transmission cycle for contents having a high contact frequency and to decrease the transmission cycle for contents having a low contact frequency. At this time, it is necessary for the multiplexing control unit 19 to perform control so as not to change the overall band.

As shown in FIG. 1, the multiplexing control unit 19
It receives the data content multiplexing information g from the transmission data determining unit 18 and controls the multiplexing unit 16. The multiplexing unit 16 multiplexes the packet signal b containing the video and audio signals generated by the video / audio coding unit 14 and the packet signal c containing the data signal generated by the data coding unit 15 with multiplexing control. The multiplexing is performed according to the control of the unit 19 and transmitted to the modulation transmitting unit 17 for transmission.

The receiving apparatus 2 not only displays information such as contents transmitted from the transmitting side in the form of images, sounds, characters, etc., but also processes response data of each viewer in the receiving apparatus. The individual information h addressed to each viewer is transmitted from the receiving device 2 to, for example, a mobile phone 3 owned by the viewer.

Next, the operation of the transmitting device 1 in the interactive data broadcasting system will be described. As shown in FIG.
In the two-way data broadcasting system, first, the response data collection unit 11 of the transmission device 1 polls an arbitrary reception device 2 and uses contact history data held by a specific reception device 2 as response data f. collect. At this time, the collected response data f is stored in the response data collection unit 1
1 to the response data management unit 12, the response data management unit 12 selects only information on the transmission channel on the transmission side from the response data f, and based on the response data f, Processing for dividing response data for returning individual information into several patterns is performed.

Here, the PSI uniquely assigned to the data content on the transmission side as a physical quantity representing the content.
(Program Specific Information) / SI (Service
(Information: information specifying a program included in the transport stream), a general-purpose identification code such as module_id is used, and the frequency of contact with the code is processed in the form of a contact history of the viewer.

When the data held by the receiving device 2 is collected by the transmitting device 1, it is not feasible to collect the data from all the receiving devices 2 due to a network congestion problem and the like. Therefore, by using the viewing history by the module_id or the like, it is easy to filter the response to the polling from the transmission device 1, and it is easy to collect the data by coding the response data, and to enable the reuse. ing. On the transmitting device 1 side, which content is
Since it is known whether or not the data is transmitted by dule_id, by collecting and reusing the response data, it is possible to easily grasp the viewing trend of the viewer and efficiently multiplex.

That is, the receiving device 2 acquires the contact frequency of the viewer with respect to the content using a physical quantity representing the content, and uses the response data held as the history data to collect the contact frequency. By reusing, the data is transmitted more efficiently in accordance with information from the viewer such as the hobbies and preferences of the viewer. The content corresponding to the content is preferentially received.

[0033] More specifically, as a case where the process of dividing the response data for returning individual information to each receiving device 2 into several patterns based on the response data f is performed, more specifically,
For example, as illustrated in FIG. 3 or FIG. 4, the transmission data determination unit 18 has many contact histories of contents with module_id “0000” and “0001”, and has module_id “0002” and “0003”.
Is small, and the content information is module
If there is information with _id “0000” to “0004”, mo
The content of dule_id “0004” is weighted with the same weight as before, the content of module_id “0000” and “0001” is doubled, and the module_id “000”
The contents of "2" and "0003" are redistributed as a whole with half the weight as before, and each is transmitted.

As described above, by dividing the response data f into arbitrary patterns, it is possible to preferentially transmit the content desired by the viewer and to return individual information to each viewer. The transmission data determination unit 18 determines whether to add new pattern information (for example, a congratulation message to a quiz answer) when transmitting information of all patterns in a data broadcast, for example, collectively to all reception devices. Can also be performed. Therefore, the communication with each viewer is performed by processing the response data f of each viewer in the receiving device 2 and selecting from the above-mentioned pattern division, and transmitting information such as individual messages from the receiving device 2. Can be emitted.

As a specific message display example at this time, a method of displaying a combination of characters, images, music, and the like on the screen of the receiving device 2 may be used.
Also, in order for the viewer to perceive the feeling of contact as more realistic, a message is transmitted directly from the receiving device 2 to a personal mobile phone by a modem (telephone function) installed in the receiving device 2 in advance. It is good also as a method of transmitting.

Next, an embodiment of the receiving apparatus 2 according to the present invention will be described with reference to FIG. The receiving apparatus 2 in the two-way data broadcasting system of the present invention includes a demodulation reception processing unit 21, a data packet separation unit 22, a data selection unit 23,
Data storage control unit 24, memory 25, video / audio decoding unit 2
6. Data decoding unit 27, combination presentation unit 28, contact service acquisition unit 29, contact data acquisition unit 30, contact history data generation / accumulation unit 31, input operation unit 32, control unit 33, and modem 34. You.

The demodulation / reception processing unit 21 selects and receives a broadcast radio wave of a modulation method according to a transmission path according to a control signal from the control unit 33 in response to a user operation on the input operation unit 32, and receives a received packet. This is a means for outputting the signal a. Further, the demodulation / reception processing unit 21 outputs to the control unit 33 program selection information necessary for data selection, such as a packet identifier according to the type of data, and simultaneously outputs a transport identifier and a service identifier of the selected service. The information is output to the contact service acquisition unit 29 together with the information.

The contact service acquisition unit 29 is a means for generating a contact service table d based on the transmitted information and outputting the contact service table d to the contact history data generation / storage unit 31. An example is shown in FIG. 3 as <Table 1>. As shown in FIG. 3, the contact service table d includes a transport stream identifier (transport stream_id) and a service identifier (s
Each entry is composed of (ervice_id) and time (time). The data packet separation unit 22 includes a demodulation reception processing unit 2
This is a means for separating and outputting a packet signal b including a video / audio signal and a packet signal c for realizing a data service, using the packet identifier obtained from No. 1.

The data selecting section 23 controls the control section 33 based on the packet identifier obtained from the data packet separating section 22 from the packet signal c containing the data contents in accordance with the user's operation on the input operation section 32. It is a means for selectively filtering desired content and receiving it by a signal. Then, the data selection unit 23
The component tag (compon
The ent tag) and the module identifier (module_id) are also output to the contact data acquisition unit 30 together with the time information (time).

The contact data acquisition section 30 is a means for generating a contact data table e and outputting it to the contact history data generation / accumulation section 31. The entry configuration of the contact data table e is shown as <Table 2> in FIG. As shown in the figure, the contact data table e is a contact service table d.
And a component tag (module tag) and a module identifier (module_id) are added to the entry configuration of Table 1 as entries.

Note that the response data of each viewer is
In the case where individual information addressed to each viewer is obtained by selecting from all received patterns by performing processing internally, control is performed in accordance with the contact history data in the contact history data generation / accumulation unit 31. A desired content is selectively filtered and received according to a control signal from the unit 33.
Therefore, here, the contact history data generation / accumulation unit 31 and the control unit 33 constitute an individual information generation unit.

The contact history data generating / accumulating section 31 is means for generating contact history data from the obtained contact service table d and contact data table e. An example of the contact history data is shown in FIG. 5 as <Table 3>. The contact history data includes a rank, a transport stream identifier (transport stream_id), and a service identifier (servi).
ce_id), a component tag (component tag), and a module identifier (module_id). If the response is obtained by polling from the response data collection unit 11 (see FIG. 1) on the sending side, the contact history data is returned to the response data collection unit 11 as response data f via the memory 25 and the modem 34. .

The data accumulation control unit 24 temporarily accumulates and saves the packet signal of the data content in the memory 25 selectively according to the contact history data in the contact history data generation / accumulation unit 31, This is a means for outputting to the data decoding unit 27 under the control of the control unit 33 in accordance with the operation of the receiving device 2 or the setting of the receiving device 2. Further, the data accumulation control unit 24 processes the response data of each viewer in the receiving device 2 so that individual information addressed to each viewer is transmitted from each receiving device 2 to the mobile phone 3 possessed by each viewer. When a call is issued, the call is also sent to the mobile phone 3 as individual information data h from the memory 25 via the modem 34. Here, the memory 25 and the modem 34 constitute data transmission means.

The data decoding section 27 is means for decoding data contents in accordance with a data encoding method. Further, a packet signal b including a video / audio signal
Is decoded by the video / audio decoding unit 26, and then synthesized and presented by the data information and the synthesizing presentation unit 28, so that the final presentation output of the data service is obtained.

In the embodiment of the present invention, the physical quantity representing the content for identifying the touched data is AR
NIT (Net) based on IB STD (Radio Telecommunications Industry Association) -B10
A method using a combination of a transport stream identifier (Transport stream id) in a workInformationTable) and a service identifier (service_id) in a service list descriptor, and a component tag of a stream identifier in a PMT (Program Map Table) and an ARIB ST
Although the method is described as being performed using a method using history data in combination with a module identifier (module_id) of DII (DownloadInfoIndication) compliant with D-B24, another similar broadcasting system or another data identification method,
For example, in accordance with ARIB STD-B10, EIT (Event Infor
mation table) can be realized in the same way.

As described above, the transmission frequency of the data transmitted on the transmission side is weighted by using the contact history data of the viewer using the physical quantity representing the content, or the congestion of the uplink is considered. It is possible to provide a data broadcast that is more satisfying for a viewer, for example, by grasping the viewing trend without receiving the information, or receiving the specific content preferentially on the receiving device side.

Here, the contact history data has been described as the specific physical quantity in the desired content of the viewer. However, for example, a form in which information of a specific genre is automatically used according to the age of the viewer is also available. It is clear that this is equally feasible. Although the algorithm for determining the data content multiplexing information g has been described as a simple example, a more complicated algorithm can be realized in the same manner.

Further, in a two-way service in which individual information is returned to each viewer based on response data from the viewer, an effective service can be provided without increasing the load on the transmission efficiency of the transmission path. It is.

[0049]

As described above, according to the present invention, a physical quantity representing a content is used, and the physical quantity is processed as contact history data to a desired content of a viewer.
Filtering and collecting the contact history data by polling from the transmission side reduces the problem of congestion on the uplink in large-scale interactive systems such as broadcasting, grasps viewing trends, and frequency of transmission of transmitted data. Or a data broadcasting system capable of receiving the specific content preferentially on the receiving side according to the data can be provided. As a result, the transmitting side can grasp the viewing trend of the viewer, and at the same time, can transmit according to the trend. Therefore, the degree of satisfaction as a whole viewer is improved.

Also, the viewer can preferentially receive the desired content without performing any special operation. For example, for a service that is always viewed every day, even if the service is transmitted at the same cycle, It becomes possible to watch without even being conscious of the waiting time that you feel as you get used to it. Further, the amount of memory required to obtain the same effect can be reduced, and an inexpensive receiving device can be realized.

Further, based on the response data from the viewers, individual information addressed to each viewer is transmitted using the transmission path of the data broadcast, which is a downlink, efficiently. Can provide a two-way data broadcasting system that can achieve the same service effect as a transmission path that is secured for individual viewers without increasing the transmission efficiency burden on the transmission path. The effect of improved service can be realized.

Furthermore, when individual information addressed to each viewer is transmitted by efficiently utilizing the transmission path of the data broadcast which is a downlink, a contact history is generated to create response data, and several patterns are generated. By processing the information for returning the individual information to the viewer, the newly added data is transmitted to all the receivers, and the viewer who needs the added data is processed. Can be transmitted to the user.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a transmission device in an interactive data broadcasting system according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a receiving device in the interactive data broadcasting system according to the present invention.

FIG. 3 is a diagram showing an example of a contact service table used in the present invention as <Table 1>.

FIG. 4 is a diagram showing an example of a contact data table used in the present invention as <Table 2>.

FIG. 5 shows an example of contact history data used in the present invention.
It is the figure shown as Table 3>.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Transmission apparatus 2 ... Receiving apparatus 3 ... Mobile telephone 11 ... Response data collection part 12 ... Response data management part 13 ... Transmission data management part 14 ... Video / audio coding part 15 ... Data coding part 16 ... Multiplexing part 17 ... Modulation transmission unit 18 Transmission data determination unit 19 Multiplex control unit 21 Demodulation reception processing unit 22 Data packet separation unit 23 Data selection unit 24 Data storage control unit 25 Memory 26 Video and audio decoding unit 27 Data Decryption unit 28 Synthetic presentation unit 29 Contact service acquisition unit 30 Contact data acquisition unit 31 Contact history data generation / accumulation unit (contact history data generation / accumulation unit means) 32 Input operation unit 33 Control unit 34 modem

Continuation of the front page (72) Inventor Seiichi Namba 1-10-11 Kinuta, Setagaya-ku, Tokyo Japan Broadcasting Corporation Japan Broadcasting Research Institute F-term (reference) 5C061 BB03 CC01 CC05 5C064 BA01 BA07 BB04 BC16 BC20 BD03 BD08 BD14

Claims (4)

[Claims] 1. A two-way data broadcasting system for serving contents, wherein a receiving side generates and stores a contact history of the contents on the receiving side using an identification code uniquely assigned to each of the contents. An interactive data broadcasting system characterized by transmitting content desired by a viewer preferentially based on the contact history collected as response data of a receiving side to polling from a transmitting side. 2. A two-way data broadcasting system for providing contents, wherein when transmitting individual information to a viewer based on the response data on the receiving side, the transmitting side preliminarily analyzes the information on the receiving side. The information of all these patterns is transmitted to the receiving side via data broadcasting, and the receiving side selects a pattern addressed to each viewer from the all patterns based on the response data. 2. The interactive data broadcasting system according to claim 1, wherein individual information addressed to each viewer is generated on the receiving side based on the pattern. 3. The receiving apparatus used in the interactive data broadcasting system according to claim 1, wherein the receiving apparatus uses an identification code uniquely assigned to each of the contents from a transmitting side in response to an operation of a viewer. Contact history data generating / accumulating means for generating and accumulating contact history data for content; and data transmitting means for transmitting the contact history data to the transmitting side as response data on the receiving side to polling from the transmitting side. A receiving device for an interactive data broadcasting system. 4. The receiving apparatus used in the interactive data broadcasting system according to claim 2, wherein the response is selected from all pattern information addressed to a viewer sent from a transmitting side based on the response data. Bidirectionally characterized by comprising individual information generating means for selecting individual pattern information addressed to each viewer based on data and generating individual information addressed to each viewer on the receiving side based on the individual pattern information. Receiving device for data broadcasting system.