JP2005051311A - Additional information acquisition apparatus and additional information acquisition method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an additional information acquisition apparatus which properly displays an acquisition state of additional information over a plurality of networks. <P>SOLUTION: The additional information acquisition apparatus is provided with: a time counter 26 that detects a period of additional information transmitted with periodicity by each of the plurality of networks to specify a time required to acquire all acquisition desirable additional information items, and outputs an acquisition ratio of each of all the acquisition desirable additional information items at a prescribed interval resulting from spacing the time; and a network counter 25 for outputting an acquisition state of the period information by each network. The apparatus is configured so as to correct the count of the time counter 26 in a timing when the acquisition of the information is finished by each network. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to additional information for extracting additional information to be applied to a receiver that receives a digital broadcast in which additional information including information related to the program is transmitted separately from video and audio data constituting the program. The present invention relates to an acquisition apparatus and an additional information acquisition method, and more particularly to an apparatus and method for efficiently acquiring additional information transmitted by a data carousel method.
[0002]
[Prior art]
Currently, digital broadcasting that transmits and receives digital signals is in practical use. In this broadcasting, a moving picture image coding experts group (MPEG) 2 system, which is a moving picture coding standard system, is adopted, and multi-channel coded image data that has been subjected to high-efficiency compression coding is multiplexed and transmitted. The digital transmission system is used. The system using the MPEG2 system is described in the document “ISO / IEC 13818-1”.
[0003]
On the broadcast station side, the digital video / audio data and additional information data constituting the program are respectively compressed by the above-described compression method, and a multiplexed signal in the form of TS (transport stream) is generated and broadcast.
Furthermore, in addition to this multiplexed signal, PMT (Program Map Table) in which description about the program is described as program information data, PAT (Program Association Table) for extracting PMT of each program, and information related to pay broadcasting are described. Data such as CAT (Conditional Access Table) and NIT (Net Work Information Table) in which information on the network used is described is also time-division multiplexed.
[0004]
Furthermore, the program information data includes EDT (Event Information Table) in which information related to the program such as SDT (Service Description Table) in which information related to the organization channel is described, program name, broadcast date and time, and description of the program content is described. Etc. are also included and similarly time-division multiplexed.
[0005]
PAT, PMT, NIT, and CAT are referred to as program specific information (PSI), and SDT, EIT, and the like are referred to as program arrangement information (SI). Information included in the PSI and SI is used to construct a program table of EPG (Electric Program Guide), for example.
[0006]
In addition, a transmission form is defined in which a plurality of TSs are multiplexed and transmitted as a set, and a system is adopted in which TSs from different broadcasting stations are multiplexed and defined as one network and transmitted together with a network identification value. .
SI includes all-station SI that transmits program information of all broadcasting stations that are broadcasting in the network simultaneously in all TSs in the network, and only information related to the broadcast-scheduled programs of its own station only in its own TS There is a station SI to transmit at. The all-station SI is transmitted for each network.
[0007]
Information transmitted by the all-station SI is limited to the minimum because the amount of information is limited. However, in the receiver, program information of a channel that is not received by the all-station SI is within the same network. Can be acquired.
The EIT is retransmitted periodically. The period is subject to change, and minimum and maximum ranges are specified. By continuously receiving a channel of a program transmitted in a desired TS over a period of at least one cycle and acquiring the EIT as the all-station SI, it is possible to acquire program information in the network in which the channel exists. The period varies depending on the content of the information and may be very slow, but there is information that is in units of minutes. These signal formats are described in, for example, documents such as “ARIB STD-B15” and “ARIB STD-B14” as operational regulations for digital broadcasting.
[0008]
That is, the video / audio data constituting the program is transmitted in a flowing manner while being sequentially updated in real time, but some additional information data is periodically transmitted like EIT, Such data is repeatedly transmitted so that the same information can be provided to the user at any time during a certain period. In other words, the data is transmitted by the data carousel transmission system, and the television receiver receives and accumulates the sequentially transmitted data, and uses it after receiving all the data.
[0009]
In the data carousel transmission method, since data is repeatedly transmitted at a predetermined cycle, all necessary data can be acquired if a certain time corresponding to the cycle elapses whenever data acquisition starts. Is possible. On the other hand, in order to use data, in principle, it is a condition that reception of all data is completed.
[0010]
By the way, as a lot of information can be transmitted by the practical application of digital broadcasting, the number of programs has increased, and the function of the program table (EPG) that presents program information and the search of the program and the contents thereof are presented. Usefulness such as a genre search function that enables a user to easily select a program that the user wants to watch has increased.
[0011]
The program table is configured to display a program scheduled to be broadcast in a specific time zone from information stored in the receiver as a list for each channel. In the genre search, the user designates the genre classification of the program, and based on the genre classification, the corresponding program is narrowed down from all program information data stored in the receiver, and the program obtained as a result This is a function for displaying information.
[0012]
However, in the above-described conventional technology, in a form in which a plurality of networks are broadcast, the program information is searched across all the networks or a desired plurality of networks, and the program contents matching the extraction conditions are presented. When trying to do it, it is not possible to acquire information on a network that includes a TS that has not been received. Therefore, for each network, one ETS is received and transmitted as EIT information as each station SI. Must be performed for all networks that you want to select.
[0013]
Specifically, first select a representative channel in one network, acquire EIT information in that network, and acquire all the information until the EIT transmission cycle time is fixed and acquired. After completing the above, the representative channel of the next network is selected, and the operation of continuing to select until all the EIT information is accumulated is performed for all the networks to be targeted.
[0014]
Therefore, it takes a maximum amount of time for the total EIT transmission period of each network before program information about all networks in the range in which information is desired to be obtained, which takes a considerable amount of time. Also, the EIT transmission cycle may be changed, and the time until completion cannot be specified.
[0015]
At this time, the user waits for a long time, and a desire to know the progress of acquisition is assumed. However, there is a problem that it is not possible to know how much time is required until completion or how much the amount of information currently acquired is relative to the total amount of information that needs to be acquired.
[0016]
Conventionally, in digital broadcasting receivers, for example, Japanese Patent Application Laid-Open No. 2004-151867 has been proposed to notify download progress when downloading received music data or the like to a storage device. It does not mention the progress when acquiring program information over the above, and does not solve the conventional problems described above.
[0017]
[Patent Document 1]
JP 2002-30366 A
[0018]
[Problems to be solved by the invention]
As described above, conventionally, when acquiring program information across a plurality of networks, no proposal has been made to appropriately inform the user of the progress of acquisition, and there has been a practical application of a device having such a function. It was predicted that there would be a strong demand.
The present invention has been made in consideration of the above points, and presents the ratio of the acquired information to the total amount of information of a plurality of networks for which information is desired to be acquired, and enables addition of the progress status until completion An object is to provide an information acquisition apparatus and an additional information acquisition method.
[0019]
[Means for Solving the Problems]
The additional information acquisition device according to the present invention includes a plurality of different networks, and reception for specifying and receiving a predetermined plurality of networks from a broadcast signal in which additional information with different contents having periodicity is multiplexed and transmitted for each network. Based on the periodic information of the additional information included in the additional information separated by the additional information separating means, the additional information separating means for separating the additional information from the received signal, From the time setting means for specifying the time required to acquire additional information, the storage means for storing the separated additional information, the time set by the time setting means and the storage execution time in the storage means, Calculation means for calculating a ratio of the accumulation state of additional information in the storage means, and display means for displaying a value calculated by the calculation means. It is characterized in.
[0020]
According to the present invention, even additional information over a plurality of networks can be acquired accurately and reliably while monitoring the acquisition status.
The additional information acquisition device according to the present invention includes a plurality of different networks, and reception for specifying and receiving a predetermined plurality of networks from a broadcast signal in which additional information with different contents having periodicity is multiplexed and transmitted for each network. Based on the periodic information of the additional information included in the additional information separated by the additional information separating means, the additional information separating means for separating the additional information from the received signal, From the time setting means for specifying the time required to acquire additional information, the storage means for storing the separated additional information, the time set by the time setting means and the storage execution time in the storage means, A calculating means for calculating a ratio of the accumulation status of additional information in the accumulating means; a display means for displaying a value calculated by the calculating means; Determination means for determining whether or not storage of the additional information in the storage means is completed for each network, and correction means for correcting the calculation result of the calculation means based on the determination result by the determination means It is characterized by that.
[0021]
According to the present invention, even additional information over a plurality of networks can be acquired accurately and reliably while monitoring the acquisition status.
The additional information acquisition device according to the present invention includes a plurality of different networks, and reception for specifying and receiving a predetermined plurality of networks from a broadcast signal in which additional information with different contents having periodicity is multiplexed and transmitted for each network. Based on the periodic information of the additional information included in the additional information separated by the additional information separating means, the additional information separating means for separating the additional information from the received signal, Time setting means for specifying a time required to acquire additional information, storage means for storing the separated additional information, and time set by the time setting means are divided at predetermined time intervals, and divided time A counter for sequentially outputting a ratio to the set time for each interval; display means for displaying the output of the counter; and the plurality of networks. Determination means for determining whether or not the accumulation of the additional information in the accumulation means is completed for each work, and correction means for correcting the value of the counter based on a determination result by the determination means It is characterized by.
[0022]
According to the present invention, even additional information over a plurality of networks can be acquired accurately and reliably while monitoring the acquisition status.
The method for acquiring additional information according to the present invention includes a step of identifying and receiving a predetermined plurality of networks from a broadcast signal including a plurality of different networks and transmitting additional information having different contents with periodicity for each network. And a step of separating the additional information from the received signal, and a time required to acquire the additional information of the predetermined plurality of networks based on period information of the additional information included in the separated additional information A ratio of the accumulation state of the additional information in the accumulating means from the step of accumulating the separated additional information, the time set by the time setting means and the accumulation execution time in the accumulating means And a step of displaying the calculated value.
[0023]
According to the present invention, even additional information over a plurality of networks can be acquired accurately and reliably while monitoring the acquisition status.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit configuration diagram of a television receiver provided with an embodiment of the program information acquisition apparatus of the present invention.
In FIG. 1, a television receiver 10 has an antenna input terminal 11 for receiving a broadcast signal from an antenna (not shown). The antenna input terminal 11 is connected to the channel selection unit 12 where the channel desired by the user is selected. The channel selection unit 12 receives a channel selection signal from the control unit 13 and executes a channel selection operation. The user operates the input unit 14 to send a signal for specifying a reception channel to the control unit 13. send.
[0025]
For this purpose, the input unit 14 may be configured by a plurality of operation buttons or a receiving unit that receives a remote control signal from a remote controller (not shown). In addition, the control unit 13 performs operation setting, function adjustment, and the like of each part of the entire television receiver 10.
[0026]
The received signal of the channel selected by the channel selection unit 12 is supplied to the demodulation unit 15 where demodulation and error correction are performed and output from the demodulation unit 15 as a TS signal. In the TS signal from the demodulator 15, the multiplexed data is separated in packet units in the TS decoder 16.
[0027]
Of the data constituting the TS signal, the video data constituting the program is supplied to the MPEG2 decoder 17 to perform MPEG2 decoding, and is supplied to the graphic superimposing unit 18 as an uncompressed digital signal.
The graphic superimposing unit 18 superimposes and outputs information indicating the acquisition status of program information described later on the output of the MPEG2 decoder 17. The output of the graphic superimposing unit 18 is supplied to the video signal processing unit 19, for example, converted into an analog video signal and converted into a standard television signal, and supplied to the display unit 28 for display.
[0028]
Next, characteristic circuit components of the additional information acquisition apparatus of the present invention will be described. Program information included in the TS signal is acquired by the program information acquisition unit 21 under the control of the control unit 13 and sequentially stored in the program information storage unit 22. That is, when a program information presentation request is given to the control unit 13 by a user's operation of the input unit 14, the control unit 13 controls the program information acquisition unit 21 so as to extract program information that satisfies a predetermined requirement. The acquired program information is sequentially stored in the program information storage unit 22.
[0029]
Further, the program information stored in the program information storage unit 22 is selected and extracted by the refinement extraction unit 23 under the control of the control unit 13 and transferred to the display memory 24.
A network number counter 25 and a time counter 26 are further connected to the control unit 13. The network number counter 25 is configured as a counter that converts the number of networks for which acquisition of program information has been completed into a display count value for all the numbers of networks that the user desires to acquire program information.
[0030]
The display count value of the network number counter 25 is updated with a step size based on the number of networks for which program information is desired to be acquired under the control of the control unit 13. For example, when the number of networks for which program information is desired to be acquired is five, the network number counter 25 indicates 0% of the initial state in a state where acquisition of program information is not completed for any network. In the state where the program information of all the networks has been acquired, the count value of the network number counter 25 is updated five times. In this state, the operation is performed to display 100% as the display count value. That is, when the number of networks is 5, the network number counter 25 operates so as to be updated every 20%. Of course, the step size depends on the number of networks.
[0031]
The time counter 26 is a counter that counts the time during which the process of acquiring program information (accumulating in the program information storage unit 22) is being executed. The control unit 13 inputs a program information presentation request from the user, and simultaneously sends a measurement start control signal to the time counter 26 to instruct measurement start. The time counter 26 is updated by incrementing the increment at regular intervals, and the increment is a value calculated from the expected completion time of acquisition of all program information. The estimated time is set from the maximum value of the EIT transmission cycle. For example, when the estimated time required from the start to completion of program information acquisition is 10 minutes, the time counter 26 is updated 10 times every minute. Assume that Thereby, the time counter 26 is updated so that the value is incremented by 10% every minute from the initial state where the information acquisition is started to 0% to 100% when the acquisition of all program information is completed. The
[0032]
In the television receiver 10 configured as described above, when the user operates the input unit 14 to input a display request in order to display the program information on the display unit 28, the control unit 13 displays the input unit 14. The channel selection signal is output to the channel selection unit 12 in order to select a channel represented in one network based on the request signal from.
[0033]
As a result, the representative channel is selected, and the received signal is derived to the TS decoder 16 via the demodulator 15. From the data separated and extracted by the TS decoder 16, the program information requested by the user via the input unit 14 is acquired by the program information acquisition unit 21 and sequentially stored in the program information storage unit 22. At the same time that the program information presentation request is input from the input unit 14, the control unit 13 drives the clock counter 26 to start measurement.
[0034]
The program information acquisition unit 21 notifies the control unit 13 of a completion notification when information acquisition regarding one network is completed. The completion notification is generated when acquisition of data for one cycle of program information is completed. The cycle is affected by the cycle of EIT set on the transmission side, and the range from the minimum value to the maximum value. have.
[0035]
Based on this completion notification, the control unit 13 updates the network number counter 25 in increments, and outputs a channel selection signal to the channel selection unit 12 to select a channel representing the next network.
Similarly, the program information of each network is acquired and stored in the program information storage unit 22.
The display counter 27 is supplied with the value of the network number counter 25 and the value of the time counter 26 and operates so as to update the display value by combining these values. That is, the count value of the clock counter 26 is corrected by the value of the network number counter 25, acquisition of the program information of all networks is completed, and the network number counter 25 becomes a value of 100%. Is controlled to be updated to a count value of 100%. For example, when the number of networks is 2 and those EITs have the same period, the time counter 25 is updated at twice the time interval as compared with the case where the number of networks is 1.
[0036]
The value of the display counter 27 indicates the progress of acquisition of program information, which is supplied to the display unit 20 via the graphic superimposing unit 18 and the video signal processing unit 19 and displayed.
In addition, the control unit 13 inputs a control signal based on a designated condition set by the user via the input unit 14 to the narrowing and extraction unit 23 regarding the display of the program information. The narrow-down extraction unit 23 extracts program information that matches the specified condition from the program information stored in the program information storage unit 22. The extracted program information is stored in the display memory unit 24 and supplied to the display unit 20 via the graphic superimposing unit 18 and the video signal processing unit 19 as display information.
[0037]
Next, an embodiment of the present invention will be described using specific numerical values. That is, a case will be described in which it is assumed that the number of networks from which program information is to be acquired is 2 and the EIT cycle is a maximum of 6 minutes.
If the time of one period of program information is 6 minutes at the maximum and the number of networks included in the range where information is desired to be acquired is 2, the information acquisition is expected to be completed at a maximum of 12 minutes. It is expected that information acquisition of about 8% of the whole will be completed per minute. Therefore, the time counter 26 is configured to be updated by incrementing by 8% every minute, with the start time being 0% and the completion time point being 100%.
[0038]
The transition of the count value of the time counter 26 at this time is shown in FIG. FIG. 2 (a) shows the passage of time and shows up to 12 minutes in 1 minute units. FIG. 2B is a value output from the clock counter 26 and indicates the information acquisition progress status in%. That is, the value changes in increments of 8% from 8% to 96%, and the time counter 26 converts the time in units of 1 minute into a value in units of 8% and outputs the value.
[0039]
FIG. 3 shows the count transition of the network number counter 25. FIG. 3A shows that the number of networks is two. Further, FIG. 3 (b) shows the progress of information acquisition relative to the number of networks in%. If the number of networks is 1, 50% information acquisition is completed, and 2 indicates that 100% information acquisition is completed. Show.
[0040]
When the above values are calculated, the estimated end time = 6 minutes × 2 networks = 12 minutes, and the progress rate per minute = 100 ÷ 12 minutes = about 8% (time counter step width = 8%). Further, the progress rate per completion of one network = 100 ÷ 2 = 50%, and the network number counter step size = 50%.
[0041]
The update of the display counter will be further described. First, the display counter 27 updates the value of the display counter 27 every time the time counter 26 is updated, and then every time the network number counter 25 is updated. Correct the count value.
The transition of the value of the display counter is shown in FIG. FIG. 4A shows the elapsed time of 1 minute intervals, and FIG. 4B shows a state in which the information acquisition progress is displayed in units of 8%. As shown in FIG. 4A, the acquisition of the first network information is completed between 6 minutes and 7 minutes. This timing is the timing when the acquisition of 50% information is completed, as shown in FIG.
[0042]
Here, the information acquisition rate at the time when 6 minutes have elapsed is 48%, and it has only increased by 2% from 48% to 50%, and does not satisfy the condition of updating in units of 8%. However, in actuality, 50% of the information has been acquired, and the display counter 27 corrects the value of the time counter 26 to a value that matches the actual condition by the count value of the network number counter 25.
[0043]
In the next 7 to 12 minutes, the value is increased by 8% from 50%, and when the acquisition of the program information of the second network is completed after 12 minutes, the value of the display counter 27 is corrected to 100%.
As described above, the network number counter 25, the time counter 26, and the display counter 27 are provided, and the value of the time counter 26 is corrected by the value of the network number counter 25 as shown in FIG. This makes it possible to display the program information acquisition status accurately and easily for all the targeted networks.
[0044]
Next, an example in which the number of networks is 5 and one EIT cycle is a maximum of 3 minutes will be described. That is, when the time of one cycle of program information is 3 minutes at the maximum and the number of networks from which information is to be acquired is 5, the information acquisition completion expectation is 15 minutes at the maximum, and the progress status is measured every 1 minute. It is expected that information acquisition of about 6% of the total will be completed. Therefore, the time counter 26 is updated by incrementing by 6% every minute, with 0% at the start and 100% at the completion time.
[0045]
When it is calculated by a mathematical formula, the estimated time of information acquisition completion = 3 minutes × 5 = 15 minutes, and the progress rate per minute = 100 ÷ 15 minutes = about 6%, so the increment of the time counter 26 = 6 %. Further, since the progress rate per completion of one network = 100 ÷ 5 = 20%, the increment of the network number counter 25 = 20%.
[0046]
The transition of the value of the time counter 26 in this case is shown in FIG. FIG. 5A shows an elapsed time of 1 minute intervals, and FIG. 5B shows a state in which the information acquisition progress is displayed in units of 6%. That is, the elapsed time from 1 minute to 16 minutes is displayed as 6% to 96%. As shown in FIG. 5A, the information acquisition of the first network is completed between 6 minutes and 7 minutes. This timing is the timing when the acquisition of 50% information is completed, as shown in FIG.
[0047]
Also, the transition of the value of the network number counter 25 in this case is shown in FIG. FIG. 6A shows the number of networks, and FIG. 6B shows a state in which the information acquisition status is displayed in increments of 20%.
FIG. 7 shows transition of display values of the display counter 27 generated based on the values of the time counter 26 and the network number counter 25 shown in FIGS. FIG. 7A shows the elapsed time, and FIG. 7B shows the information acquisition progress in%.
[0048]
In FIG. 7 (a), 5 times between 3 and 4 minutes, 6 and 7 minutes, 9 and 10 minutes, 12 and 13 minutes, and 15 minutes after It is shown that a program information acquisition completion state arrives for each network. In FIG. 7B, the information acquisition progress is corrected to 20%, 40%, 60%, 80%, and 100% at the program information acquisition completion timing of each network.
[0049]
Also in this example, a network number counter 25, a time counter 26, and a display counter 27 are provided, and the value of the time counter 26 is corrected by the value of the network number counter 25 as shown in FIG. Program information acquisition status can be displayed accurately and easily for all targeted networks.
[0050]
Note that the increment of the count of the time counter 26 is set based on the maximum time of one EIT period. Naturally, if such setting is made, a network having an EIT period shorter than that period. Is also wasted on time. Even in such a case, the wastefulness can be eliminated by correcting the value of the time counter 26 with the value of the network counter 25.
[0051]
For example, when the number of networks is 2 and the step size of the clock counter 26 is set based on the maximum EIT period of 6 minutes, the actual required time for completing information acquisition for one network is 3 minutes. Will be described.
The update state of the value of the time counter 26 is shown in FIG. In FIG. 8A, the elapsed time is shown from 1 minute to 12 minutes, and in FIG. 8B, the information acquisition progress status is shown from 8% to 98% corresponding to the elapsed time. The information progress increases in increments of 8% and reaches 96% in 12 minutes.
[0052]
The transition of the value of the network number counter 25 is shown in FIG. FIG. 9A shows the number of networks, and FIG. 9B shows the progress of information acquisition corresponding to the number of networks.
The transition of the value of the display counter 27 in this example is shown in FIG. FIG. 10A shows the elapsed time, and FIG. 10B shows the information acquisition progress state corresponding to the elapsed time. FIG. 10A shows that the network information acquisition completion state arrives between 3 minutes and 4 minutes and after 6 minutes. At each timing, the information acquisition progress is corrected by the value of the network counter 25 so that it becomes 50% and 100%.
[0053]
Also in this example, a network number counter 25, a time counter 26, and a display counter 27 are provided. As shown in FIG. 10, the value of the time counter 26 is corrected by the value of the network number counter 25, so Can be displayed accurately and easily in an easy-to-understand manner.
[0054]
The increment of the count value of the time counter 26 described above is not limited to the described value, but is set based on the expected completion time and the number of networks.
FIG. 11 shows an example in which the information income status for each network is displayed. A network identification number for which information acquisition has been completed is indicated by a circle.
FIG. 12 shows a result of setting whether to acquire information for each network. It is set to acquire information for networks marked with ○. This setting is made by the user via the input means 14.
The additional information acquisition apparatus of the present invention is not limited to the above-described form, and can be implemented in various ways without changing the gist thereof.
[0055]
【The invention's effect】
As described above, the additional information acquisition device of the present invention can reliably and efficiently display the acquisition status of program information across a plurality of networks.
[Brief description of the drawings]
FIG. 1 is a circuit configuration diagram of a television receiver including an embodiment of an additional information acquisition apparatus according to the present invention.
FIG. 2 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
FIG. 3 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
4 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
FIG. 5 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
6 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
7 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
FIG. 8 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
FIG. 9 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
10 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
FIG. 11 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
12 is a configuration diagram for explaining the operation of the apparatus shown in FIG. 1;
[Explanation of symbols]
10 ... Television receiver
11 ... Antenna input terminal
12 ... Channel selection
13. Control unit
14 ... Input section
15 ... demodulator
16 ... TS decoder
17 ... MPEG2 decoder
18 ... Graphic superimposition part
19 ... Video signal processing section
20 ... Display section
21. Program information acquisition unit
22 ... Program information storage unit
23 ... Refinement extraction unit
24 ... Display memory
25 ... Network number counter
26 ... hour counter
27 ... Display counter

Claims (6)

Receiving means for identifying and receiving a predetermined plurality of networks from a broadcast signal transmitted by multiplexing and transmitting additional information of different contents having a periodicity for each network including a plurality of different networks;
Additional information separating means for separating the additional information from the received signal;
Time setting means for specifying the time required to acquire the additional information of the predetermined plurality of networks based on the periodic information of the additional information included in the additional information separated by the additional information separating means;
Storage means for storing the separated additional information;
A calculating means for calculating a ratio of the accumulation status of the additional information in the accumulation means from the time set by the time setting means and the accumulation execution time in the accumulation means;
Display means for displaying the value calculated by the calculating means;
An additional information acquisition device comprising: Receiving means for identifying and receiving a predetermined plurality of networks from a broadcast signal transmitted by multiplexing and transmitting additional information of different contents having a periodicity for each network including a plurality of different networks;
Additional information separating means for separating the additional information from the received signal;
Time setting means for specifying the time required to acquire the additional information of the predetermined plurality of networks based on the periodic information of the additional information included in the additional information separated by the additional information separating means;
Storage means for storing the separated additional information;
A calculating means for calculating a ratio of the accumulation status of the additional information in the accumulation means from the time set by the time setting means and the accumulation execution time in the accumulation means;
Display means for displaying the value calculated by the calculating means;
Determining means for determining whether or not the storage of the additional information in the storage means is completed for each of the plurality of networks;
Correction means for correcting the calculation result of the calculation means based on the determination result by the determination means;
An additional information acquisition device comprising: Receiving means for identifying and receiving a predetermined plurality of networks from a broadcast signal transmitted by multiplexing and transmitting additional information of different contents having a periodicity for each network including a plurality of different networks;
Additional information separating means for separating the additional information from the received signal;
Time setting means for specifying the time required to acquire the additional information of the predetermined plurality of networks based on the periodic information of the additional information included in the additional information separated by the additional information separating means;
Storage means for storing the separated additional information;
A counter that divides the time set by the time setting means at a predetermined time interval and sequentially outputs a ratio to the set time for each divided time interval;
Display means for displaying the output of the counter;
Determining means for determining whether or not the storage of the additional information in the storage means is completed for each of the plurality of networks;
Correction means for correcting the value of the counter based on the determination result by the determination means;
An additional information acquisition device comprising: The said time setting means specifies the time required for acquiring the said additional information based on the longest period among the additional information which has the said periodicity, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The additional information acquisition device described in 1. 5. The additional information according to claim 1, wherein the determination unit includes a second counter that outputs a ratio of the number of networks that have completed accumulation in the accumulation unit with respect to the plurality of networks. Acquisition device. Identifying and receiving a predetermined plurality of networks from a broadcast signal transmitted by multiplexing and transmitting additional information of different contents having a periodicity for each of the networks including a plurality of different networks;
Separating the additional information from the received signal;
Identifying the time required to acquire the additional information of the predetermined plurality of networks based on the periodic information of the additional information included in the separated additional information;
Storing the separated additional information;
Calculating a ratio of the accumulation status of additional information in the accumulation means from the time set by the time setting means and the accumulation execution time in the accumulation means;
Displaying the calculated value;
The additional information acquisition method characterized by comprising.

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