WO2010021363A1

WO2010021363A1 - Receiving device and broadcast system

Info

Publication number: WO2010021363A1
Application number: PCT/JP2009/064585
Authority: WO
Inventors: 弘幸堀居; 一廣家田
Original assignee: 三洋電機株式会社; 三洋電機コンシューマエレクトロニクス株式会社
Priority date: 2008-08-22
Filing date: 2009-08-20
Publication date: 2010-02-25
Also published as: CN102132576A

Abstract

A receiving device for receiving program information from a broadcasting device which allocates different program information sets to segments and broadcasts the program information sets. The receiving device includes a channel selecting section for selecting a segment to be received from preset channel selection candidate segments and a channel selection candidate setting section for setting at least one segment as the channel selection candidate segment(s) according to predetermined information. When, by using a specific segment, the broadcasting device broadcasts operation information representing which segment the program information is allocated to, the channel selection candidate setting section receives the broadcast of the specific segment, acquires the operation information, and makes the setting according to the operation information.

Description

Receiving apparatus and broadcasting system

The present invention relates to a receiving device that receives a broadcast signal from a broadcasting device, and a broadcasting system using the receiving device.

Conventionally, broadcast of program information (one-segment broadcasting) using one segment of each physical channel has been operated as one of the services by terrestrial digital broadcasting. This one-segment broadcasting currently uses a central segment among 13 segments of each physical channel, and is mainly intended for mobile terminals.

Further, according to Non-Patent Document 1, etc., only the one-segment broadcasting part is extracted from each physical channel of terrestrial digital broadcasting, and other contents are bundled and retransmitted using radio waves for one physical channel. A method is being considered. According to such a method, it is possible to reduce transmission power and to reduce the price of a re-transmission device as compared with a method in which radio waves of terrestrial digital broadcasting are retransmitted as they are.

In view of the circumstances described above, in the future, an operation in which separate program information is allocated (bundled) to each of a plurality of segments of each physical channel (such broadcasting will be referred to as “bundling segment” hereinafter). It is also conceivable that it may be referred to as “broadcast”). Further, in this case, a segment to which program information is assigned by using a specific segment (for example, a central segment) of each physical channel until the segment to which program information is assigned in each physical channel is completely standardized. It is also conceivable that operational information is broadcast.

In addition, for reasons such as facilitating the management of the bundled segment broadcasting service as much as possible, it is conceivable that which segment is preferentially used for the bundled segment broadcasting service in each physical channel.

In this case, for example, it is determined that the first segment should be preferentially used for the bundled segment broadcasting service in addition to the center (number 0) segment conventionally used for one-segment broadcasting. Under such circumstances, when the bundle segment broadcasting service is operated in any physical channel, the first segment is always adopted as the segment for the bundle segment broadcasting service. This can also be said that a specific (first) segment is an indispensable segment at the time of bundle seg broadcasting operation.

Also, for reasons such as facilitating management of the bundled segment broadcasting service as much as possible, it may be possible to provide regularity to segments to which program information is allocated for each physical channel. In this regard, each segment is assigned a number from 0 to 12 in order from the side closer to the center, and it is conceivable that program information is assigned in this order (that is, preferentially in order from 0).

In this case, for example, if five pieces of program information are assigned to a certain physical channel, these pieces of program information are assigned to the segments from No. 0 to No. 4, respectively. It will not be assigned. In other words, for example, a so-called “tooth missing” state where program information is assigned to segments 0 to 3 and 5 even though program information is not assigned to segment 4 is recognized. There will be no.

By the way, in a receiving apparatus such as a television broadcast receiver, a channel selection process is performed for switching the reception frequency in accordance with a user instruction so that the user can view a desired program. Prior to the channel selection process, an operation (channel scan) is performed in which all channels are scanned in advance to check channels that can be broadcasted in the viewer's residence area. As a result, basically, only channels for which broadcast reception was possible are set as candidates for channels to be received (selected).

However, when the operation of bundled segment broadcasting is started, if such a channel scan equivalent to the conventional one is executed, all segments (13 per one physical channel) in all physical channels (UHF13 to 62ch) are scanned. Thus, it is necessary to check whether broadcast reception is possible. For this reason, the number of segments to be scanned is greatly increased (theoretically 13 times) as compared with the case where it is sufficient to scan one segment per physical channel. As a result, there arises a problem that the time required for setting a candidate for a segment to be received is significantly increased.

In view of the above-described problems, the present invention has an object to provide a receiving apparatus and a broadcasting system capable of setting candidate segments to be received as quickly as possible when bundled segment broadcasting is operated. To do.

In order to achieve the above object, a receiving apparatus according to the present invention is a receiving apparatus that receives program information from a broadcasting apparatus that assigns and broadcasts separate program information to each of a plurality of segments. A channel selection unit that switches to any of the preset channel selection candidate segments, and a channel selection candidate setting unit that sets at least one segment to the channel selection candidate segment based on predetermined information. And when the broadcast device broadcasts operation information indicating to which segment the program information is allocated using a specific segment, the channel selection candidate setting unit broadcasts the specific segment. The operation information is received and acquired, and the setting is performed according to the operation information.

According to this configuration, operation information is acquired by receiving a broadcast of a specific segment, and channel selection candidate segments are set according to this operation information. Therefore, for example, the processing load related to the setting can be reduced as compared with the case where all the segments are searched and the channel selection candidate segment is set. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

It should be noted that the “program” here represents a unit of broadcasting organization, and its content does not matter. For example, it is not limited to a television program or a radio program, but may be for broadcasting some information.

Further, in the receiving apparatus configured as described above, the broadcast apparatus receives a plurality of physical channels over a plurality of physical channels, and receives the program information from a broadcast apparatus that allocates and broadcasts separate program information to each of the plurality of segments. When each operation information indicating which segment the program information is allocated to in the physical channel is broadcast using a specific segment in each of the channel selection candidates setting unit, the channel selection candidate setting unit A configuration may be adopted in which each broadcast of a specific segment is received, each of the operation information is acquired, and the setting is performed according to the operation information.

According to this configuration, even when the broadcast device broadcasts the operation information corresponding to the physical channel using a specific segment in each of the plurality of physical channels, the channel selection is performed according to the operation information. Candidate segment setting is performed. Therefore, for example, as compared with the case where channel selection candidate segments are set by searching all segments of each physical channel, the processing load related to the setting can be reduced. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

In the above configuration, the channel selection candidate setting unit sets a predetermined segment as a channel selection candidate segment for a physical channel that does not include the operation information in the broadcast of the specific segment. It is good also as composition to do.

According to this configuration, for example, when the operation information is not broadcasted as in the conventional one-segment broadcasting operation (only the central segment is used for broadcasting), but this segment is used in advance. Can be set as a channel selection candidate segment.

Further, in the above configuration, the channel selection candidate setting unit does not set any segment as the channel selection candidate segment for a physical channel that has not been able to receive the broadcast even if the broadcast of the specific segment is received. It is good.

Even if trying to receive a broadcast of a specific segment, it is considered that the physical channel that could not receive the broadcast is not used for the broadcast in the first place. It is. Therefore, according to this configuration, it is possible to exclude a segment for which tuning is not necessary from setting of a channel selection candidate segment. As a result, the tuning process can be executed more smoothly.

More specifically, as the above configuration, the specific segment may be a central segment among the 13 segments of each physical channel.

A broadcasting system according to the present invention includes a receiving device having the above-described configuration, and a broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels. Each operation information indicating which segment the program information is allocated to in the physical channel is broadcast using a specific segment in each of the plurality of physical channels. According to this configuration, it is possible to cause the receiving device to set candidate segments to be received as quickly as possible.

In order to achieve the above object, a receiving apparatus according to the present invention receives program information from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments including a specific segment other than the central segment. A receiving device for switching a segment to be received to one of preset channel selection candidate segments, and performing a determination process for determining whether or not the program information can be received for each segment; A channel selection candidate setting unit that sets at least one segment as the channel selection candidate segment based on the result of the determination process, and the channel selection candidate setting unit receives the program information for the specific segment. If the reception is determined to be impossible, other segments in the physical channel are excluded from the determination process. And it formed.

According to this configuration, when it is determined that the program information cannot be received for a specific segment, other segments in the physical channel are excluded from the determination process. Therefore, for example, regardless of the reception status of a specific segment, it is possible to reduce a processing burden related to setting of a channel selection candidate segment, compared to a case where all segments are searched and channel selection candidate segments are set. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

It should be noted that the “program” here represents a unit of broadcasting organization, and its content does not matter. For example, it is not limited to a television program or a radio program, but includes a program for broadcasting some other information.

Further, in the receiving apparatus having the above-described configuration for receiving program information from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments including at least the specific segment across a plurality of physical channels, the channel selection candidate setting The unit determines whether or not the program information can be received for each of the specific segments in the plurality of physical channels, and for the physical channel determined to be unreceivable, the other segment is excluded from the determination processing target. It is good also as a structure.

According to this configuration, for each of a plurality of physical channels, it is determined whether or not program information can be received in a specific segment. If it is determined that reception is not possible, other segments in that physical channel are excluded from the determination process. And Therefore, for example, compared to a case where a channel selection candidate segment is set by searching all segments unconditionally for a plurality of physical channels, it is possible to reduce the processing load related to the channel selection candidate segment setting. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

More specifically, in the configuration described above, the channel selection candidate setting unit determines whether or not the program information can be received for each of the specific segments in the plurality of physical channels, and the physical channel that has been determined to be received. For other physical segments that have not been subjected to discrimination processing, the other segments that have not yet been discriminated are subject to discrimination processing, while for physical channels that have been determined to be unreceivable, other segments that have not yet been discriminated are subject to discrimination processing. It is good also as a structure excluded from object.

In the above configuration, the channel selection candidate setting unit determines whether or not the program information can be received for each of the specific segments in the plurality of physical channels. Except for the segments, no segment may be set as the channel selection candidate segment.

本 According to this configuration, it is possible not to set a segment that is considered not to be used in the bundled segment broadcasting service as a channel selection candidate segment, and to perform channel selection processing smoothly. On the other hand, if conventional one-segment broadcasting (broadcast using a central segment) is operated, this broadcast can be selected as a channel selection candidate.

A broadcasting system according to the present invention includes the receiving device according to the above configuration and a broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments including at least the specific segment over a plurality of physical channels. The configuration. According to this configuration, it is possible to cause the receiving device to set candidate segments to be received as quickly as possible.

In order to achieve the above object, a receiving apparatus according to the present invention is a receiving apparatus that receives program information from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments, and receives the segment. Is switched to any of the preset channel selection candidate segments, and a determination process for determining whether or not the program information can be received for each segment is performed, and based on the result of the determination process, at least A channel selection candidate setting unit that sets one segment as the channel selection candidate segment, and the channel selection candidate setting unit performs the determination processing in order from the segment closest to the center and cannot receive the program information. When it is determined that the remaining segment in the physical channel is excluded from the determination processing target.

According to this configuration, the determination process is performed in order from the segment closest to the center, and when it is determined that the program information cannot be received, the remaining segments in the physical channel are excluded from the target of the determination process. Therefore, when the broadcasting device assigns program information preferentially in order from the segment closest to the center, it is naturally possible to eliminate the waste of performing the discrimination processing even for the segment where the program information cannot be received. It becomes.

This makes it possible to reduce the processing load related to the setting of the channel selection candidate segment, compared to, for example, searching all the segments and setting the channel selection candidate segment. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

In addition, the receiving apparatus configured as described above receives program information from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels, and the channel selection candidate setting unit includes the channel selection candidate setting unit. For each of a plurality of physical channels, the determination process is performed in order from the segment closest to the center, and when it is determined that the program information cannot be received, the remaining segments in the physical channel are excluded from the determination process. It is good also as a structure.

According to this configuration, for each of a plurality of physical channels, the determination processing is performed in order from the segment closest to the center, and when it is determined that the program information cannot be received, the remaining segments in the physical channel are determined. Not subject to processing. For this reason, when the broadcast apparatus preferentially assigns program information in order from the segment closest to the center for each physical channel, it is a waste of course to perform the discrimination process even for segments for which program information cannot be received. Can be omitted.

This makes it possible to reduce the processing load related to the setting of the channel selection candidate segment as compared with, for example, the case where the channel selection candidate segment is set by searching all the segments of each physical channel. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

In the above configuration, the channel selection candidate setting unit may not set the remaining segments as the channel selection candidate segment.

本 According to this configuration, it is possible not to set a segment that is considered not to be used in the bundled segment broadcasting service as a channel selection candidate segment, and to perform channel selection processing smoothly.

A broadcasting system according to the present invention includes a receiving device according to the above configuration, and a broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels, and the broadcasting device includes: For each physical channel, the program information is preferentially assigned in order from the segment closest to the center. According to this configuration, it is possible to cause the receiving device to set candidate segments to be received as quickly as possible.

The receiving apparatus according to the present invention can reduce the processing load related to setting a channel selection candidate segment, compared to, for example, searching all segments and setting a channel selection candidate segment. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

1 is a configuration diagram of a broadcast system according to an embodiment of the present invention. It is explanatory drawing which shows an example of the broadcast content by the broadcasting apparatus which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows an example of the bundle segment information table which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows an example of the searched flag table which concerns on 1st Embodiment of this invention. 5 is a flowchart of processing relating to channel scanning and seek channel selection according to the first to third embodiments of the present invention. It is the flowchart which showed more concretely the process of step S3 which concerns on 1st Embodiment of this invention. It is the flowchart which showed more specifically the process of step S4 which concerns on 1st Embodiment of this invention. 7 is a flowchart showing in more detail the process of step S5 according to the first to third embodiments of the present invention. It is explanatory drawing which shows an example of the content of the broadcast by the broadcast apparatus which concerns on 2nd, 3rd embodiment of this invention. It is explanatory drawing which shows an example of the bundle segment information table which concerns on 2nd Embodiment of this invention. It is explanatory drawing which shows an example of the searched flag table which concerns on 2nd Embodiment of this invention. It is the flowchart which showed more concretely the process of step S3 which concerns on 2nd Embodiment of this invention. It is the flowchart which showed more concretely the process of step S4 which concerns on 2nd, 3rd embodiment of this invention. It is explanatory drawing which shows an example of the bundle segment information table which concerns on 3rd Embodiment of this invention. It is explanatory drawing which shows an example of the searched flag table which concerns on 3rd Embodiment of this invention. It is the flowchart which showed more concretely the process of step S3 which concerns on 3rd Embodiment of this invention.

The embodiment of the present invention will be described below by taking the broadcasting system having the configuration shown in FIG. 1 as an example. As shown in the figure, the broadcasting system 9 includes a broadcasting device 1 that provides a bundled segment broadcasting service and a receiving device 2 that receives a broadcast from the broadcasting device 1.

The broadcasting device 1 executes broadcasting (bundled seg broadcasting) in which separate program information is assigned to each of a plurality of segments in each physical channel. Here, the physical channel is any one of UHF channels 13 to 62, and each physical channel has 13 segments (segment numbers 0 to 12) as is well known. The segment numbers are assigned as “1”, “2”,... “12” in order from the side closer to the center, with the center being “0”. In other words, “11”, “9”, “7”,... “8”, “10”, “12” are assigned in order from the segment with the lowest frequency.

The receiving device 2 includes a receiving unit 21, a broadcast signal processing unit 22, a display 23, a speaker 24, a calculation control unit 25, a storage unit 26, an operation unit 27, and the like. The receiving unit 21 includes an antenna and a tuner device. As a result, among the broadcast signals broadcast by the broadcast apparatus 1, the signal of the designated segment in the physical channel designated in advance is selected and received and transmitted to the subsequent stage. The physical channel and the segment to be received are designated by the operation unit 27.

The broadcast signal processing unit 22 extracts video and audio information from the broadcast signal transmitted from the receiving unit 21, and generates a video signal and an audio signal. The video signal is transmitted to the display 23 and the audio signal is transmitted to the speaker 24. The display 23 displays video based on the transmitted video signal, and the speaker 24 outputs audio based on the transmitted audio signal.

The arithmetic control unit 25 controls various processes performed by the receiving device 2. Of the processing, details of processing related to channel scanning and seek channel selection will be described in detail again.

The storage unit 26 is formed by a rewritable nonvolatile memory, and stores various information necessary for processing performed by the receiving device 2, such as a bundle segment information table and a searched flag table. The contents of the bundle segment information table and the searched flag table will be described in detail again.

The operation unit 27 is formed as a user interface having a push button switch or the like, and is operated by the user. The contents of the operation are transmitted to the arithmetic control unit 25 as instructions such as channel scan execution, seek channel selection execution, power ON / OFF, and volume adjustment.

With the above-described configuration, the receiving device 2 receives bundled seg broadcasting executed by the broadcasting device 1, and performs video display and audio output of the broadcast program. Thereby, the user of the receiving device 2 can view a program broadcast by bundled segment broadcasting.

In addition to receiving bundled segment broadcasting, the receiving device 2 performs channel scanning and seek channel selection as appropriate. Note that the channel scan is executed according to a user instruction when, for example, a segment capable of receiving a broadcast is changed due to a change in reception area. The seek channel selection is performed by automatically searching for a segment capable of receiving a broadcast in accordance with a user instruction (including designation of a desired segment).

Next, three embodiments of channel scanning and seek channel selection by the receiving device 2 will be described below. Each embodiment has a different bundle seg broadcasting system.

(First embodiment)
First, specific contents of broadcasting by the broadcasting device 1 in the first embodiment (here, as an example, 13ch to 15ch) will be described with reference to FIG.

As shown in FIG. 2, the broadcasting apparatus 1 broadcasts the programs A to G using the segments 0 to 6 for 13 ch, while the segments 7 to 12 are not used for broadcasting. . That is, each segment from No. 0 to No. 6 is the target of the bundle segment broadcasting service, and the other segments are not subject to the bundle segment broadcasting service.

For 14ch, HT programs are broadcast using all segments 0-12. That is, all segments are the target of bundled segment broadcasting service. For 15ch, no segment is used for broadcasting. In other words, the 15ch itself is excluded from the bundled segment broadcasting service.

Also, the broadcasting device 1 broadcasts operation information of bundled segment broadcasting in addition to program information, using the center (number 0) segment of each physical channel. This operation information indicates a segment for bundle seg broadcasting in a physical channel to which the operation information belongs (that is, information indicating which segment is used for bundle seg broadcast).

According to the operation information (operation information 1) of bundled seg broadcasting broadcast on 13ch, the segments (numbered segments 0 to 6) that are the target of bundled seg broadcasting service on 13ch are indicated. Similarly, according to the operation information (operation information 2) of bundled seg broadcasting that is broadcast on 14ch, the segments (numbered segments 0 to 12) that are the target of bundled seg broadcasting service on 14ch are indicated. .

For 15ch, all segments are excluded from the bundled segment broadcasting service, so the bundled segment broadcast operation information is not broadcast. By broadcasting such bundle seg broadcast operation information, the receiving device 2 can easily determine the bundle seg broadcast segment in each physical channel.

The contents of the bundle segment information table and the searched flag table in the first embodiment will be described with reference to FIGS.

In the bundle segment information table, as shown in FIG. 3, information of “search result flag” and “bundle segment broadcast flag” is assigned to each physical channel. The “search result flag” is represented by any one of “a” to “c”, “a” indicates that bundled segment broadcast operation information has been acquired, and “b” indicates that a broadcast signal has been received. However, the operation information of bundled segment broadcasting is not acquired, and “c” indicates that no broadcast signal is received.

The “bundle seg broadcast flag” is represented by “0” or “1” corresponding to each segment, and “0” is not used for the bundle seg broadcast (that is, the bundle seg broadcast service). On the other hand, “1” indicates that the segment is used for bundled segment broadcasting (that is, the subject of bundled segment broadcasting service). Since the “bundle seg broadcast flag” is set based on the operation information of the bundle seg broadcast, it is not set for a physical channel for which the operation information has not been acquired.

Also, as shown in FIG. 4, the searched flag table is assigned a value of “0” or “1” corresponding to each segment (0 to 12) in each physical channel. “0” indicates a segment that has not been searched yet in seek channel selection, which will be described later, while “1” indicates a segment that has already been searched (including segments that are not searched).

Next, details of processing related to channel scanning and seek channel selection in the first embodiment will be described below with reference to the flowcharts of FIGS.

As shown in FIG. 5, the receiving apparatus 2 monitors whether a channel scan execution instruction has been given by the user (step S1) and a seek channel selection execution instruction has been given by the user (step S2). If a channel scan execution instruction is given (Y in step S1), the receiving apparatus 2 executes the channel scan and updates the bundle segment information table (step S3). And after updating a bundle segment information table, it returns to the process of step S1. Here, the specific content of the process of step S3 will be described with reference to FIG.

First, the receiving device 2 initializes the contents of the bundle segment information table (see FIG. 3) (step S11). Next, 13ch, which is the first physical channel among all physical channels, is selected (step S12), and the signal of the center (0th) segment of the selected physical channel is received (step S13).

Then, the receiving device 2 determines whether or not a broadcast signal (program information) has been received through the reception (step S14) and whether or not bundled segment broadcast operation information has been acquired (step S15). As a result, when the broadcast signal is not received (N in Step S14), the search result flag of the bundle segment information table is set to “c” for the physical channel selected this time (Step S16). When the broadcast signal is received but the operation information of bundle seg broadcasting is not acquired (N in step S15), the search result flag of the bundle seg information table is set to “b” for the physical channel selected this time. (Step S17).

If the operation information of bundle seg broadcasting is acquired (Y in step S15), the search result flag of the bundle seg information table is set to “a” for the physical channel selected this time. Further, the bundle seg broadcast flag in the bundle seg information table is edited according to the operation information (step S18). For example, if the operation information indicates that “the 0th to 6th segments are the target of the bundled segment broadcasting service”, the bundled segment broadcast flag for the 0th to 6th segments is set to “1”. Others are set to “0”.

After any of the processes in steps S16 to S18, if there is a physical channel that has not been selected (Y in step S19), the next physical channel is newly selected (step S20), and then step S13. Repeat the process. On the other hand, if all physical channels have been selected (N in step S19), the process in step S3 ends. With the processing so far, the update of the bundle segment information table is completed.

Returning to FIG. 5, when there is an instruction to execute seek tuning (Y in step S <b> 2), the receiving device 2 first uses the preset bundle segment information table to set the searched flag table. Update (step S4). Here, the specific content of the process of step S4 will be described with reference to FIG.

First, the receiving device 2 initializes the searched flag table by setting all the searched flags in the searched flag table (see FIG. 4) to “0” (step S21). Thereafter, the receiving device 2 selects the first physical channel among all physical channels (step S22). For example, when selecting sequentially from 13 ch to 62 ch, 13 ch is selected first.

Then, it is determined whether the preset search result flag is “a” to “c” for the selected physical channel (steps S23 and S24). As a result, if the search result flag is “a” (Y in step S23), for the physical channel selected this time, a searched flag is set according to the contents of the bundle seg broadcast flag (step 25). Specifically, for a segment whose bundle segment broadcast flag is “0”, the searched flag is “1” (searched), and for a segment whose bundle segment broadcast flag is “1”, the searched flag is “0”. "(Unsearched).

If the search result flag is “b” (Y in step S24), for the physical channel selected this time, the searched flag of the center (number 0) segment is set to “0”, while other segments are selected. Is set to "1" (step S26). If the search result flag is “c” (N in step S24), the searched flag for all segments is set to “1” for the physical channel selected this time (step S27).

After any of the processes in steps S25 to S27, if there is a physical channel that has not been selected (Y in step S28), the next physical channel is newly selected (step S29), and step S23 is performed. Repeat the process. On the other hand, if all physical channels have been selected (N in step S28), the process in step S4 ends. By the processing so far, the update of the searched flag table is completed.

Returning to FIG. 5, when the processing of step S4 is completed, the receiving apparatus 2 next performs seek channel selection using the searched flag table (step S5). Then, after executing seek channel selection, the process returns to step S1. Here, the specific content of the process of step S5 will be described with reference to FIG.

First, the receiving device 2 selects the segment closest to the segment designated by the user from among the segments having the searched flag “0” in all physical channels (step S31). That is, if the searched segment flag of the designated segment is “0”, the segment is selected. Otherwise, the segment having the searched flag of “0” is selected from the side closer to the designated segment. In order, search and select other physical channels.

Then, the selected segment is searched, and it is determined whether or not the bundled segment broadcast can be received in this segment (step S32). When the search is completed, the searched flag of the currently selected segment is updated to “1” (step S33).

If it is determined in step S32 that the bundled seg broadcast can be received (Y in step S34), the receiving apparatus 2 receives the bundled seg broadcast using the currently selected segment, and broadcast program Video and audio are output. At the same time, an instruction to continue the search by the user is accepted (step S35).

At this time, if the search continuation instruction is not given (N in step S35), the currently selected segment is determined as the segment to be selected. As a result, the purpose of seek channel selection has been achieved, and the process of step S5 is terminated. However, if the bundled seg broadcast cannot be received (N in step S34), or if there is an instruction to continue the search (Y in step S35), the receiving device 2 does not use all the physical channels. It is determined whether the searched flag of the segment is “1” (step S36).

As a result, when all the searched flags are “1” (Y in step S36), there is no segment to be newly searched, and in this case, the process of step S5 is also terminated. At this time, a message indicating that “a segment to be newly searched does not exist” or the like may be displayed as appropriate.

On the other hand, if the segment with the searched flag “0” remains (N in step S36), the receiving apparatus 2 newly selects the next segment from the segments with the searched flag “0”. (Step S37), the process of step S32 is repeated.

Note that the processing in step S37 may be performed such that, for example, the next segment is selected in ascending order of frequency (that is, seek channel selection is executed in ascending order of frequency). In this case, if the state of the searched flag table is as shown in FIG. 4, if the currently selected segment is the 6th segment of 13ch, the next segment (search target) is the 11th of 14ch. Segment. However, the process of step S37 is not limited to the process in which the next segment is selected in ascending or descending order of frequency, and other methods may be employed. For example, in the same physical channel, the next segment may be selected in ascending order of segment numbers.

In addition, regarding the above-described processing, the processing in step S35 may be omitted. In this case, if it is determined that the bundled seg broadcast can be received (Y in step S34), the currently selected segment is selected as the segment to be selected without receiving an instruction to continue the search by the user. It only has to be determined.

Here, according to the processing of steps S31 and S37, only the segment whose searched flag is “0” is the target of the search (step S32) in the seek channel selection. In other words, when the searched flag table is set in the process of step S4, segments for which the searched flag is set to “1” in advance are excluded from the search target in seek channel selection.

Thereby, the receiving apparatus 2 is configured such that the search is omitted for a segment that is considered unnecessary for the search in the channel selection. This point will be specifically described below.

First, operation information of bundle seg broadcasting is acquired for the physical channel in which the search result flag is set to “a” by the process of step S3. Therefore, the segment shown in the operation information (the segment that is the target of the bundled segment broadcasting service) is a segment that needs to be searched for seek tuning, and the segment that is not shown (the target of the bundled segment broadcasting service) The segment which is outside) can be said to be an unnecessary segment for searching in the seek channel selection.

Therefore, for the segment indicated in the operation information, the searched flag is set to “0” in advance, and the search is performed in seek channel selection, while the segment not indicated in the operation information is searched in advance. The flag is set to “1” and is not subject to search in seek channel selection (see step S25).

Also, as a result of the processing in step S3, for the physical channel for which the search result flag is set to “b”, the operation information of bundle seg broadcasting has not been acquired, but the broadcast signal can be received. In this case, in the physical channel, there is a possibility that broadcasting (so-called one-segment broadcasting) using the center (number 0) segment of the physical channel is performed as in the past. Therefore, when such one-segment broadcasting is targeted for seek selection, the central segment is a segment that needs to be searched for seek selection. This is a necessary segment.

Therefore, with respect to the physical channel, the searched flag is set to “0” in advance for the center segment, and the search flag is set to “1” in advance for the segment other than the center. As a result, it is excluded from the search target in the seek channel selection (see step S26).

However, for the physical channel in which the search result flag is set to “b”, for example, the searched flag of all segments may be set to “0” in advance, and may be a search target in seek channel selection. As a result, the processing time of seek channel selection increases, but the operation information of bundle seg broadcasting is not acquired for some reason even though the physical channel is the target of bundle seg broadcast service operation. It is possible to respond appropriately.

In addition, the physical channel whose search result flag is set to “c” by the process of step S3 is not used for broadcasting by the broadcasting apparatus 1 in the first place, or the radio wave does not reach the receiving apparatus 2 for some reason. Can be considered. Therefore, it can be said that the physical channel does not normally need to be searched for seek selection.

Therefore, with respect to the physical channel, the searched flag is set to “1” in advance for all segments, and is not subject to search in seek channel selection (see step S27). However, even for a physical channel with the search result flag set to “c”, the search completed flag of a predetermined segment (for example, the center) is set to “0” for the sake of precaution, and the search channel may be set as a search target in seek tuning. I do not care.

In addition, the segment in which the searched flag is set to “0” by the process of step S4 can be said to be a segment (tuning candidate segment) that can be a target of channel selection (switching of received segments). Further, the processing of steps S3 to S4 can be said to be processing for setting at least one segment as a channel selection candidate segment based on information such as a channel scan result. The process of step S5 can be said to be a process of switching the received segment to any one of the preset channel selection candidate segments.

If new bundle seg operation information can be acquired while performing seek channel selection, the bundle seg information table and the searched flag table are updated each time, and the segment that is the target of the newly found bundle seg broadcast service May be a search target in seek channel selection.

By executing the above-described series of processing (steps S1 to S5), the receiving device 2 can appropriately execute channel scanning and seek channel selection. In particular, the channel scan can be executed more quickly than a receiving apparatus that employs a conventional channel scan technique, and the processing time is greatly reduced.

That is, in a receiving apparatus that adopts the conventional channel scan technique, when trying to support the bundled segment broadcasting service, it is necessary to search all segments of each physical channel when executing the channel scan. Therefore, much time is required for channel scanning. However, in the receiving apparatus 2 of this embodiment, it is sufficient to search only one segment of each physical channel, so that the time required for channel scanning is greatly reduced. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

(Second Embodiment)
Next, specific contents of broadcasting by the broadcasting apparatus 1 in the second embodiment (here, as an example, 13ch to 15ch) will be described with reference to FIG.

As shown in FIG. 9, the broadcasting device 1 broadcasts the programs A to G using the segments 0 to 6 for 13ch, while the segments 7 to 12 are not used for broadcasting. . That is, each segment from No. 0 to No. 6 is the target of the bundle segment broadcasting service, and the other segments are not subject to the bundle segment broadcasting service.

For each physical channel that is the target of the bundle segment broadcasting service, in addition to the center (number zero) segment, the first segment is a segment for the bundle segment broadcasting service (program information of the bundle segment broadcasting service). Is preferentially applied as a segment). That is, in any physical channel, when the bundle segment broadcasting service is operated, the first segment is always adopted as the segment for the bundle segment broadcasting service. This can also be said to be that a specific segment (number 1) other than the center (number 0) is an indispensable segment in the operation of the bundle segment broadcasting service. In this embodiment, as an example, the first segment is preferentially applied as a segment for the bundled segment broadcasting service, but other segments (for example, the fifth segment) other than the center are prioritized. It does not matter if it is applied to the target.

Therefore, the receiving device 2 determines whether or not the program information can be received for the first segment of each physical channel. If reception is not possible, the other segment of the physical channel does not need to be received and bundled segment broadcasting is performed. It can be determined that the service program information cannot be received.

The contents of the bundle segment information table and the searched flag table in the second embodiment will be described with reference to FIGS.

In the bundle segment information table, as shown in FIG. 10, information of “bundle segment information flag” is assigned to each physical channel. The “bundle seg information flag” is represented by “0” or “1” corresponding to each segment. “0” indicates that the bundle seg broadcast cannot be received by the segment, while “1” Indicates that bundle segment broadcasting can be received by the segment.

Further, as shown in FIG. 11, a value of “0” or “1” is assigned to the searched flag table corresponding to each segment (0 to 12) in each physical channel. “0” indicates a segment that has not been searched yet in seek channel selection, which will be described later, while “1” indicates a segment that has already been searched (including segments that are not searched).

Next, details of processing related to channel scanning and seek channel selection in the second embodiment will be described below with reference to the flowcharts of FIGS. 5, 8, 12, and 13.

First, the receiving apparatus 2 initializes the contents of the bundle segment information table (see FIG. 10) by setting all the bundle segment information flags to “0” (step S41). Next, 13ch, which is the first physical channel among all physical channels, is selected (step S42). Then, the reception of the signal of the first segment of the selected physical channel is executed, thereby determining whether or not the program information can be received (step S43).

As a result, if it is determined that reception is possible (Y in step S43), the bundle segment information flag of the first segment is updated to “1” (step S44). Thereafter, the receiving apparatus 2 sequentially performs signal reception in the same manner for each of the other segments (other than No. 1) in the selected physical channel, thereby determining whether or not the program information can be received. Is determined. Based on the determination result, the bundle segment information flag is edited (step S45).

In other words, the bundle seg information flag is set to “1” for a segment that can receive program information, and the bundle seg information flag is set to “0” for a segment that cannot receive program information. . Since it is known in advance that the segment No. 0 is the target of the bundle segment information service, the bundle segment information flag is set to “1” without determining whether or not the program information can be received. It doesn't matter if you do.

If the program information cannot be received in the first segment (N in step S43), the processes in steps S44 and S45 are omitted. As a result, all the bundle segment information flags remain “0” for the currently selected physical channel. In other words, regarding the currently selected physical channel, it is considered that the program information cannot be received by any segment.

When the process of step S45 is completed, or when it is determined that the program information cannot be received in the process of step S43 (N of step S43), the receiving device 2 has not yet been selected. It is determined whether or not there is a channel (step S46).

As a result, if there is an unselected physical channel (Y in step S46), the next physical channel is newly selected (step S47), and the process of step S43 is repeated. On the other hand, if all the physical channels have been selected (N in step S46), the process in step S3 ends. With the processing so far, the update of the bundle segment information table is completed.

First, the receiving device 2 initializes the searched flag table by setting all the searched flags in the searched flag table to “0” (step S51). Thereafter, the receiving device 2 selects the first physical channel among all physical channels (step S52). For example, when selecting sequentially from 13 ch to 62 ch, 13 ch is selected first.

For the selected physical channel, unless all bundle segment information flags are “0” (N in step S53), a searched flag is set according to the bundle segment information flag (step S54). Specifically, for a segment whose bundle segment information flag is “0”, the searched flag is “1” (searched), and for a segment whose bundle segment information flag is “1”, the searched flag is “0”. "(Unsearched).

However, if all the bundle segment information flags are “0” (Y in step S53), the searched flag of the 0th segment is set to “0”, while the other (1st to 12th) The searched segment flag is set to “1”. That is, the searched flag of the segment other than the number 0 is set to “1” (searched) (step S55).

After the processing in step S54 or S55, if there is a physical channel that has not yet been selected (Y in step S56), the next physical channel is newly selected (step S57), and the processing in step S53 is performed. repeat. On the other hand, if all physical channels have been selected (N in step S56), the process in step S4 ends. By the processing so far, the update of the searched flag table is completed.

Note that the processing in steps S31 and S37 may be performed such that the next segment is selected, for example, in ascending order of frequency (that is, seek channel selection is executed in ascending order of frequency). In this case, if the state of the searched flag table is as shown in FIG. 11, if the currently selected segment is the 6th segment of 13ch, the next segment (search target) is the 11th of 14ch. Segment. However, the process of step S37 is not limited to the process in which the next segment is selected in ascending or descending order of frequency, and other methods may be employed. For example, in the same physical channel, the next segment may be selected in ascending order of segment numbers.

Thereby, the receiving apparatus 2 is configured such that the search is omitted for a segment that is considered unnecessary for the search in the channel selection. More specifically, for the segment whose bundle segment information flag is “0”, it is impossible to receive the program information of the bundle segment broadcast service in advance (thus, the search in the seek channel selection is considered unnecessary). It is discriminated or regarded as. Therefore, for these segments, the search in the seek channel selection is omitted by setting the searched flag to “1” in the process of step S54.

However, a physical channel whose bundle segment information flag of all segments is “0” (that is, a channel that is determined to be unreceivable in the process of step S43) can be compatible with a conventionally operated one-segment broadcasting, etc. Therefore, as a precaution, the searched flag of the 0th segment is set to “0” by the process of step S55. In other words, the searched flag is set to “1” for any segment except the central segment. In this regard, for the 0th segment, the searched flag may be set to “1” so as not to be searched in seek channel selection.

For the segment whose bundle segment information flag is “1”, it is determined that the program information of the bundle segment broadcasting service can be received in advance (thus, the search in the seek channel selection is considered necessary). The search in the seek channel selection is executed by setting the searched flag to “0” in the process of step S54.

In addition, the segment in which the searched flag is set to “0” by the process of step S4 can be said to be a segment (tuning candidate segment) that can be a target of channel selection (switching of received segments). Further, the processing of steps S3 to S4 is processing for determining whether or not program information can be received for each segment, and setting at least one segment as a channel selection candidate segment based on the determination result. . The process of step S5 can be said to be a process of switching the received segment to any one of the preset channel selection candidate segments.

That is, in a receiving apparatus that employs a conventional channel scan technique, when trying to support the bundled segment broadcasting service, in the channel scan, it is determined whether or not the program information can be received for all segments of each physical channel. There is a need. Therefore, much time is required for channel scanning.

However, in the receiving apparatus 2 of the present embodiment, it is determined whether or not the program information can be received for an essential segment (first segment) in the operation of the bundle segment broadcasting service among the physical channels (step S43). When it is determined that it is not possible (N in step S43), it can be said that program information cannot be received for other segments of the same physical channel. Discrimination is omitted. As a result, the time required for channel scanning is greatly reduced. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

Note that the receiving device 2 focuses on whether or not the program information can be received in the first segment, not in the center (number 0) segment used in the conventional one-segment broadcasting. Therefore, in the process of step 42, even if a physical channel that is a service target of the conventional one-segment broadcasting is selected, it is erroneously determined that the physical channel is a target of the bundle-segment broadcasting service. Can be avoided.

In addition, for the physical channels that are the target of the bundle segment broadcasting service, it can be said that the center (number 0) segment is usually also subject to the bundle segment broadcasting service. Therefore, for example, immediately before the process of step S43 described above, it may be determined whether or not the program information can be received in the center (number 0) segment of the selected physical channel. In this case, if the program information can be received, the bundle segment information flag of the 0th segment is set to “1” and the process proceeds to step S43. If the program information cannot be received, step S43 is performed. The processing in steps S45 to S45 may be omitted and the processing may proceed to step S46.

(Third embodiment)
Next, specific contents of broadcasting by the broadcasting apparatus 1 in the third embodiment (here, as an example, 13ch to 15ch) will be described with reference to FIG.

In addition, for each physical channel that is the target of the bundle segment broadcasting service, program information of the bundle segment broadcasting service is preferentially allocated in order from the segment closer to the center (that is, in order of the segment with the smallest segment number). Is set. For example, if five pieces of program information are assigned to a certain physical channel, these pieces of program information are assigned to the respective segments from No. 0 to No. 4, and are not assigned to the segments after No. 5. It will be.

In other words, for example, a so-called “tooth missing” state is recognized in which program information is assigned to segments 0 to 3 and 5 even though program information is not assigned to segment 4. There will be no. Therefore, the receiving device 2 determines whether or not the program information can be received for each segment in order from the smallest segment number. When the reception becomes impossible, the receiving device 2 receives the program information without trying to receive the remaining segments. Can be determined to be impossible.

The contents of the bundle segment information table and the searched flag table in the third embodiment will be described with reference to FIGS.

In the bundle segment information table, as shown in FIG. 14, information of “bundle segment information flag” is assigned to each physical channel. The “bundle seg information flag” is represented by “0” or “1” corresponding to each segment. “0” indicates that the bundle seg broadcast cannot be received by the segment, while “1” Indicates that bundle segment broadcasting can be received by the segment.

Also, as shown in FIG. 15, the searched flag table is assigned a value of “0” or “1” corresponding to each segment (0 to 12) in each physical channel. “0” indicates a segment that has not been searched yet in seek channel selection, which will be described later, while “1” indicates a segment that has already been searched (including segments that are not searched).

Next, details of processing related to channel scanning and seek channel selection in the third embodiment will be described below with reference to the flowcharts of FIGS. 5, 8, 13, and 16.

First, the receiving apparatus 2 initializes the contents of the bundle segment information table (see FIG. 14) by setting all the bundle segment information flags to “0” (step S61). Next, 13ch, which is the first physical channel in all physical channels, is selected (step S62), and the segment of the first number (number 0) of the selected physical channels is selected (step S63). Then, the reception of the signal of the segment selected this time is executed, thereby determining whether or not the program information can be received (step S64).

As a result, if it is determined that reception is possible (Y in step S64), the bundle segment information flag of the selected segment is updated to “1” (step S65). If there is a next number segment (Y in step S66), the next number segment is newly selected (step S67), and the process in step S64 is repeated.

If the program information cannot be received in the process in step S64 (N in step S64), the processes in steps S65 and S66 are omitted. As a result, the bundle segment information flag of the remaining (not yet selected) segment remains “0” for the currently selected physical channel. In other words, depending on the currently selected segment and the remaining segments, it is considered that the program information cannot be received.

If there is no segment with the next number (N in step S66), or if it is determined in step S64 that reception is not possible (N in step S64), the receiving device 2 is still selected. It is determined whether there is a physical channel that has not been set (step S68).

As a result, if there is an unselected physical channel (Y in step S68), the next physical channel is newly selected (step S69), and the process of step S63 is repeated. On the other hand, if all physical channels have been selected (N in step S68), the process in step S3 ends. With the processing so far, the update of the bundle segment information table is completed.

Returning to FIG. 5, when there is an instruction to execute seek tuning (Y in step S <b> 2), the receiving device 2 first uses the preset bundle segment information table to set the searched flag table. Update (step S4). Since the specific processing content of the step S4 is the same as the processing of FIG. 13 in the second embodiment described above, detailed description is omitted here.

When the processing in step S4 is completed, the receiving apparatus 2 next performs seek channel selection using the searched flag table (step S5). Then, after executing seek channel selection, the process returns to step S1. Since the specific processing content of the step S5 is the same as the processing of FIG. 8 in the second embodiment described above, detailed description thereof is omitted here.

That is, in a receiving apparatus that employs a conventional channel scanning technique, in order to support the bundled segment broadcasting service, in the channel scanning, it is determined whether or not the program information can be received for all segments of each physical channel. There is a need. Therefore, much time is required for channel scanning.

However, in the receiving device 2 of this embodiment, it is determined in each physical channel whether or not program information can be received in order from the segment closest to the center (step S64). When it is determined that it is not possible (N in step S64), it can be said that the program information cannot be received for the remaining segments of the same physical channel. Discrimination is omitted. As a result, the time required for channel scanning is greatly reduced. As a result, when bundled seg broadcasting is used, it is possible to set candidate candidates for segments to be received as quickly as possible.

Although the embodiments of the present invention have been described above, the receiving device 2 is applied to various electronic devices that are desired to support bundled seg broadcasting services, such as portable television broadcast receivers and car navigation systems. It is possible.

The present invention is not limited to the above contents. The present invention can be implemented with various modifications without departing from the spirit of the present invention.

The present invention can be used in the field of receivers that receive so-called bundled segment broadcasting.

DESCRIPTION OF SYMBOLS 1 Broadcasting apparatus 2 Receiving apparatus 9 Broadcasting system 21 Receiving part 22 Broadcast signal processing part 23 Display 24 Speaker 25 Calculation control part 26 Storage part 27 Operation part

Claims

A receiving device that receives program information from a broadcasting device that assigns and broadcasts separate program information to each of a plurality of segments,
A channel selection unit that switches a segment to be received to one of preset channel selection candidate segments,
A channel selection candidate setting unit that sets at least one segment to the channel selection candidate segment based on predetermined information;
With
When the broadcast device broadcasts operation information indicating which segment the program information is assigned to using a specific segment,
The channel selection candidate setting unit
Receiving the broadcast of the specific segment, obtaining the operational information,
A receiving apparatus that performs the setting according to the operation information.
The receiving device according to claim 1, wherein the program information is received from a broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels,
When the broadcast device uses each specific segment in each of a plurality of physical channels to broadcast each operation information indicating which segment the program information is assigned to in the physical channel,
The channel selection candidate setting unit
Receiving broadcasts of specific segments of the plurality of physical channels, respectively, obtaining each of the operation information,
A receiving apparatus that performs the setting according to the operation information.
The channel selection candidate setting unit
For physical channels in which the operation information is not included in the broadcast of the specific segment,
The receiving apparatus according to claim 2, wherein a predetermined segment set in advance is set as the channel selection candidate segment.
The channel selection candidate setting unit
About physical channels that could not receive the broadcast even if they tried to receive the broadcast of the specific segment,
The receiving apparatus according to claim 2, wherein no segment is set as the channel selection candidate segment.
The specific segment is
The receiving apparatus according to claim 1, wherein the receiving apparatus is a central segment among 13 segments of each physical channel.
A receiving device according to claim 2;
A broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels,
The broadcasting device
A broadcast system characterized by using a specific segment in each of a plurality of physical channels and broadcasting each operation information indicating to which segment in the physical channel the program information is allocated.
A receiving device that receives program information from a broadcasting device that assigns and broadcasts separate program information to each of a plurality of segments including a specific segment other than the central segment,
A channel selection unit that switches a segment to be received to one of preset channel selection candidate segments,
A channel selection candidate setting unit that performs a determination process for determining whether or not the program information can be received for each segment, and sets at least one segment as the channel selection candidate segment based on a result of the determination process;
With
The channel selection candidate setting unit
For the specific segment, determine whether to receive the program information,
When it is determined that the reception is not possible, the other segment in the physical channel is excluded from the determination processing target.
The receiving apparatus according to claim 7, wherein the program information is received from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments including at least the specific segment over a plurality of physical channels. And
The channel selection candidate setting unit
For each of the specific segments in the plurality of physical channels, determine whether to receive the program information,
A receiving apparatus characterized in that, for a physical channel determined to be unreceivable, other segments are excluded from the determination process.
The channel selection candidate setting unit
For each of the specific segments in the plurality of physical channels, determine whether to receive the program information,
For physical channels that have been determined to be receivable, other segments that have not yet been subjected to discrimination processing are targeted for discrimination processing,
9. The receiving apparatus according to claim 8, wherein for a physical channel that has been determined to be unreceivable, other segments that have not yet been subjected to determination processing are excluded from the determination processing target.
The channel selection candidate setting unit
For each of the specific segments in the plurality of physical channels, determine whether to receive the program information,
10. The receiving apparatus according to claim 9, wherein for a physical channel determined to be unreceivable, no segment is set as the channel selection candidate segment except for a central segment.
A receiving device according to claim 8;
A broadcasting system, comprising: a broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments including at least the specific segment over a plurality of physical channels.
A receiving device that receives program information from a broadcasting device that assigns and broadcasts separate program information to each of a plurality of segments,
A channel selection unit that switches a segment to be received to one of preset channel selection candidate segments,
A channel selection candidate setting unit that performs a determination process for determining whether or not the program information can be received for each segment, and sets at least one segment as the channel selection candidate segment based on a result of the determination process;
With
The channel selection candidate setting unit
A receiving apparatus characterized in that the determination processing is performed in order from the segment closest to the center, and when it is determined that the program information cannot be received, the remaining segments in the physical channel are excluded from the determination processing target.
13. The receiving apparatus according to claim 12, wherein the program information is received from a broadcasting apparatus that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels,
The channel selection candidate setting unit
For each of the plurality of physical channels, the determination process is performed in order from the segment closest to the center, and when it is determined that the program information cannot be received, the remaining segments in the physical channel are excluded from the target of the determination process. And a receiving device.
The channel selection candidate setting unit
The receiving apparatus according to claim 13, wherein the remaining segments are not set as the channel selection candidate segments.
A receiving device according to claim 13,
A broadcasting device that allocates and broadcasts separate program information to each of a plurality of segments over a plurality of physical channels,
The broadcasting system preferentially assigns the program information to each physical channel in order from a segment closer to the center.