JP2008109530A - Broadcast receiver, control method of broadcast receiver, and control program for controlling broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcast receiver with an auto preset function for presetting a broadcast station desired by a user without performing complicated operations. <P>SOLUTION: The broadcast receiver includes a broadcast station information acquisition means for acquiring broadcast station information regarding receivable broadcast stations by scanning a receiving frequency band and the auto preset function for storing the broadcast station information in a storage part 7 of itself by being associated with a predetermined channel, wherein a memory control means for prohibiting storage of the broadcast station information of a broadcast station at the starting which is the received broadcast station in the storage part 7 at the starting of the auto preset function during execution of the auto preset function, is included. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a broadcast receiving device having an auto-preset function, a control method for the broadcast receiving device, and a control program for controlling the broadcast receiving device.

Conventionally, a function of scanning a reception frequency band and acquiring information about a receivable broadcast station, and an auto-preset function of sequentially storing the acquired information about a broadcast station in its own storage unit in association with a predetermined channel; There is known a broadcast receiving apparatus comprising:
In this type of broadcast receiving apparatus, the frequency of a broadcasting station that is not desired by a user such as a traffic information broadcasting station is stored in advance in the storage unit of the broadcast receiving apparatus as data, and the above-mentioned undesired value is executed when the auto-preset function is executed. There has been proposed a broadcast receiving apparatus having a function of prohibiting presetting of a broadcast station of frequency data that matches the frequency data (see, for example, Patent Document 1).
JP-A-6-303108

However, in order to prevent an undesired broadcast station from being preset when the auto-preset function is executed using the broadcast receiving apparatus described above, the frequency of the undesired broadcast station is registered in advance and stored in the storage unit. There was a problem that work was necessary.
In particular, when the user desires to receive a broadcasting station other than the currently receiving broadcasting station, the user generally executes the auto preset function.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a broadcast receiving apparatus having an auto-preset function that presets information on a broadcast station desired by a user without performing complicated operations. And

  In order to achieve the above object, the present invention scans a reception frequency band and acquires broadcast station information that is information relating to a receivable broadcast station, and the broadcast station information is set to a predetermined value. In a broadcast receiving apparatus having an auto-preset function that sequentially stores in a storage unit corresponding to a channel, a start-time broadcast station that is received at the start of the auto-preset function during execution of the auto-preset function And a memory control means for prohibiting storage of the broadcast station information in the storage unit.

  According to the present invention, during execution of the auto-preset function, the same broadcast station that was received at the start of auto-preset is not preset, so the user-desired broadcast station is preset without performing complicated operations. be able to.

  Here, in the broadcast receiving apparatus according to the invention, the broadcast station information may include at least one of frequency information and program identification information.

Further, in the broadcast receiving apparatus of the above invention, the memory control means prohibits storage of the broadcast station information having the same program identification information as the program identification information of the start broadcast station in the storage unit. Also good.
According to this configuration, even when a state in which broadcast stations having different frequencies and the same program identification information are present appears, the broadcast station desired by the user can be preset by executing the auto-preset function. .

  In order to achieve the above object, the present invention scans a reception frequency band, acquires broadcast station information that is information relating to receivable broadcast stations, and the broadcast station information. In a broadcast receiving apparatus having an auto-preset function that sequentially stores in a storage unit corresponding to a predetermined channel, while the auto-preset function is being executed, until the scan of all reception frequency bands is completed by the broadcast station information acquisition unit Prohibits the storage of the start broadcast station information, which is the broadcast station information of the start broadcast station, which is the broadcast station received at the start of the auto preset function, into the storage unit, and scans the entire reception frequency region. After the completion, if there is an empty channel, the prohibition is canceled, and the start broadcast station information is associated with the empty channel to the storage unit. It characterized in that it comprises a storage control means for 憶.

  According to the present invention, during the auto-preset execution, after the scan of the reception frequency band is completed, if there is an empty channel in the channel, the broadcast station received at the start of the auto-preset is preset, so that the user-desired broadcast station Can be preset, and the storage area of the storage unit can be used efficiently.

  Here, in the broadcast receiving apparatus according to the invention, the broadcast station information may include at least one of frequency information and program identification information.

Further, in the broadcast receiving apparatus of the above invention, the storage control means is configured to prohibit storage of the broadcast station information having the same program identification information as the program identification information of the start broadcast station in the storage unit. Also good.
According to this configuration, even when a state in which broadcast stations having different frequencies and the same program identification information are present appears, the broadcast station desired by the user can be preset by executing the auto-preset function. .

  In order to achieve the above object, the present invention provides a broadcast receiving apparatus having an auto-preset function for sequentially storing broadcast station information, which is information relating to receivable broadcast stations, in a storage unit in association with a predetermined channel. In the control method, when the auto-preset function is started, a process of storing the start broadcast station information, which is the broadcast station information of the start broadcast station that is the currently receiving broadcast station, in the storage unit; Scanning the frequency domain, acquiring the broadcast station information, comparing the acquired broadcast station information that is the acquired broadcast station information and the start broadcast station information, if these are different, And storing the acquired broadcast station information in the storage unit in association with a predetermined channel.

  According to the present invention, during execution of the auto-preset function, the same broadcast station that was received at the start of auto-preset is not preset, so the user-desired broadcast station is preset without performing complicated operations. be able to.

  In order to achieve the above object, the present invention provides a broadcast receiving apparatus having an auto-preset function for sequentially storing broadcast station information, which is information relating to receivable broadcast stations, in a storage unit in association with a predetermined channel. In the control method, when the auto-preset function is started, a process of storing the start-time broadcast station information that is the broadcast station information of the start-time broadcast station that is the currently receiving broadcast station in the storage unit, and a reception frequency The process of scanning the area to acquire the broadcast station information, the acquired broadcast station information that is the acquired broadcast station information, and the start broadcast station information are compared. The process of storing the broadcast station information in association with a predetermined channel in the storage unit, and when there is an empty channel after the scan of the entire reception frequency region is completed, the start broadcast Information in correspondence with the free channels, characterized in that a step of storing into said storage unit.

  According to the present invention, during the auto-preset execution, after the scan of the reception frequency band is completed, if there is an empty channel in the channel, the broadcast station received at the start of the auto-preset is preset, so that the user-desired broadcast station Can be preset, and the storage area of the storage unit can be used efficiently.

  In order to achieve the above object, the present invention provides a broadcast receiving apparatus having an auto-preset function for sequentially storing broadcast station information, which is information about receivable broadcast stations, in a storage unit in association with a predetermined channel. In a control program for controlling by a computer, when the start of the auto preset function is instructed, the start broadcast station information which is the broadcast station information of the start broadcast station which is the currently receiving broadcast station is stored. The received broadcast station information is acquired by scanning the reception frequency region, and the acquired broadcast station information that is the acquired broadcast station information is compared with the start broadcast station information, which are different from each other. In this case, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel.

  According to the present invention, during execution of the auto-preset function, the same broadcast station that was received at the start of auto-preset is not preset, so the user-desired broadcast station is preset without performing complicated operations. be able to.

  In order to achieve the above object, the present invention provides a broadcast receiving apparatus having an auto-preset function for sequentially storing broadcast station information, which is information about receivable broadcast stations, in a storage unit in association with a predetermined channel. In a control program for controlling by a computer, when the start of the auto-preset function is instructed, a storage unit that stores start-time broadcast station information that is the broadcast-station information of the start-time broadcast station that is currently being received If the received broadcast station information is acquired by scanning the reception frequency region, and the acquired broadcast station information, which is the acquired broadcast station information, is compared with the start broadcast station information. In addition, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel, and after the scan of all reception frequency regions is completed, an empty channel is stored. If present, characterized in that to store the start time of the broadcasting station information in correspondence with the free channel to the storage unit.

  According to the present invention, during the auto-preset execution, after the scan of the reception frequency band is completed, if there is an empty channel in the channel, the broadcast station received at the start of the auto-preset is preset, so that the user-desired broadcast station Can be preset, and the storage area of the storage unit can be used efficiently.

  According to the present invention, it is possible to reliably preset a broadcast station desired by a user without performing complicated work.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a functional configuration of an RDS broadcast receiving apparatus 1 according to the present embodiment. The RDS broadcast receiving apparatus 1 has a function of receiving a multiplex broadcast signal related to RDS broadcast, extracts RDS data from the received multiplex broadcast signal, and uses the extracted RDS data to perform various services. Can be provided. The RDS data includes a PI code (Program Identification Code) that is a code for identifying a program corresponding to the broadcast signal.

  As shown in this figure, an RDS broadcast receiving apparatus 1 includes an antenna 2 that detects a broadcast signal such as a multiplex broadcast signal, a receiver 3 that receives the broadcast signal via the antenna 2 and outputs it as an audio signal, The amplifier 4 that amplifies the audio signal output from the receiver 3, the speaker 5 that outputs the audio signal amplified by the amplifier 4, and the controller 6 that centrally controls each unit of the RDS broadcast receiver 1. A storage unit 7 for storing various data such as a channel table 30, a current channel table 31, a work channel table 32, which will be described later, a display unit 8 for displaying various types of information, power ON, start of auto preset, And an operation unit 9 that outputs an instruction input by the user such as auto-preset mode selection to the control unit 6.

  The receiving unit 3 generates an audio signal from the broadcast signal received via the antenna 2, and outputs the audio signal to the amplifier 4. The control unit 6 converts the audio signal into an arbitrary frequency broadcast signal. A PLL 11 that generates a tuning frequency signal for tuning, a BPF 12 that passes only a broadcast signal having a frequency in a predetermined frequency range among broadcast signals received by the tuner 10, and outputs to the RDS decoder 13, and this BPF 12 outputs And an RDS decoder 13 for extracting the RDS data and outputting the RDS data to the control unit 6. The control unit 6 stores the RDS data output from the RDS decoder 13 in the storage unit 7. Further, the control unit 6 acquires information on the level of the received signal received by the antenna 2 (hereinafter simply referred to as “reception level”) via the tuner 10 and stores it in the storage unit 7 as reception level data. save.

FIG. 2A is an example of the channel table 30 stored in the storage unit 7. The channel table 30 is a table for storing the channel number data 30A, the frequency data 30B, the PI code data 30C, and the reception level data 30D in the storage unit 7 in association with each other. As shown in this figure, the channel table 30 includes channel number data 30A, frequency data 30B, PI code data 30C, and reception level data 30D. The channel number data 30A includes a number “1”. ] To “6” are allocated. In the present embodiment, the number of channels that can be stored in the channel table 30 is “6”, but the number of channels is not limited to “6”, and can be set as appropriate according to the storage area.
In the present embodiment, “broadcast station is preset” means that frequency data 30B, PI code data 30C, and reception level data 30D of the broadcast station are stored in the channel table 30 and correspond to the channel number data 30A. It is attached and memorized.

  FIG. 2B is an example of the current channel table 31 stored in the storage unit 7. The current channel table 31 temporarily stores the frequency data 31B, PI code data 31C, and reception level data 31D of the broadcast station currently received by the RDS broadcast receiving apparatus 1 at the start of auto-preset described later. It is a table to do. As shown in this figure, the current channel table 31 stores frequency data 31B, PI code data 31C, and reception level data 31D.

  FIG. 2C is an example of the work channel table 32 stored in the storage unit 7. The work channel table 32 is a table used by the control unit 6 as a work area during auto presetting. As shown in this figure, the work channel table 32 stores frequency data 32B, PI code data 32C, and reception level data 32D.

Next, the operation at the time of auto presetting of the RDS broadcast receiving apparatus 1 according to the present embodiment will be described with reference to FIGS. 3 and 4. Here, the RDS broadcast receiving apparatus 1 has a mode A and a mode B described below as the operation modes of the auto preset.
(1) Mode A
The broadcast station having the same frequency data or the same PI code data as the broadcast station that was received when auto-preset was started is not preset in the operation mode (2) mode B
A broadcast station having the same frequency data or the same PI code data as the broadcast station that was received when auto-preset was started has a space in the channel table 30 after a broadcast station other than this broadcast station is preset. Only when the operation mode is preset The user operates the operation unit 9 in advance to set which mode is to be used.

First, the operation of the RDS broadcast receiving apparatus 1 in mode A will be described.
FIG. 3 is a flowchart showing the operation of the RDS broadcast receiving apparatus 1 in mode A.
When the user performs an operation to start auto-preset on the operation unit 9, the control unit 6 receives a signal from the operation unit 9 and starts auto-preset (step SA1). The control unit 6 stores the frequency, PI code, and reception level of the currently received broadcasting station in the current channel table 31 as frequency data 31B, PI code data 31C, and reception level data 31D, respectively. At the same time, the value stored in the channel table 30 is reset (step SA2). Thereafter, the control unit 6 scans the broadcast station by sweeping from the lower limit frequency (step SA3). Here, in the present embodiment, it is assumed that a broadcast station is scanned in the FM band. Therefore, the lower limit frequency and the upper limit frequency mean the lower limit frequency and the upper limit frequency in the reception frequency band of the FM band.

  When a broadcast station is acquired by the above scan (step SA4: YES) (hereinafter, the acquired broadcast station is referred to as “acquired broadcast station”), the control unit 6 determines the frequency, PI code, The reception levels are overwritten and stored in the work channel table 32 as frequency data 32B, PI code data 32C, and reception level data 32D, respectively (step SA5). Thereafter, the control unit 6 determines whether or not the frequency data 32B stored in the work channel table 32 matches the frequency data 31B stored in the current channel table 31 (step SA6). When the frequency data 31B and the frequency data 32B match (step SA6: YES), the control unit 6 moves the process to step SA12. When the frequency data 31B and the frequency data 32B are different (step SA6: NO), the control unit 6 determines that the PI code data 32C stored in the work channel table 32 is the PI code data stored in the current channel table 31. It is determined whether or not it matches 31C (step SA7).

  When the PI code data 31C matches the PI code data 32C (step SA7: YES), the control unit 6 moves the process to step SA12. When the PI code data 31C and the PI code data 32C are different (step SA7: NO), the control unit 6 determines whether there is an empty channel in the channel table 30 (step SA8). Here, the empty channel means a channel in which the frequency data 30B, the PI code data 30C, and the reception level data 30D are not stored in the channel table 30. When there is an empty channel (step SA8: YES), the control unit 6 sets the frequency data 32B and PI code data 32C of the work channel table 32 to the channel with the smallest channel number data 30A among the empty channels. And reception level data 32D is stored (step SA9).

  On the other hand, when there is no empty channel in the channel table 30 at step SA8 (step SA8: NO), the control unit 6 receives the reception level data 32D of the work channel table 32 and the reception level stored in the channel table 30. The data 30D is compared (step SA10). When reception level data 30D having a value smaller than the reception level data 32D of the work channel table 32 exists in the channel table 30 (step SA10: YES), the control unit 6 has the smallest value of the reception level data 30D. The channel frequency data 30B, PI code data 30C, and reception level data 30D are overwritten with the frequency data 32B, PI code data 32C, and reception level data 32D of the work channel table 32 (step SA11). On the other hand, when the reception level data 30D smaller than the reception level data 32D stored in the work channel table 32 does not exist in the channel table 30, the control unit 6 advances the process to step SA12.

  In step SA12, the control unit 6 determines whether the scan of the broadcast station has reached the upper limit frequency. If the scan has reached the upper limit frequency (step SA12: YES), the control unit 6 stops auto-preset (step SA14) because the search in the entire searchable frequency has been completed. When the search has not reached the upper limit frequency (step SA12: NO), the control unit 6 determines whether or not the user has performed an operation to cancel the auto preset on the operation unit 9 (step SA13). When the above operation is performed (step SA13: YES), the control unit 6 stops the auto preset (step SA14). If the above operation has not been performed (step SA13: NO), the control unit 6 returns the process to step SA3 and starts scanning the broadcast station again.

  Thus, according to mode A, during execution of auto preset, a broadcast station having the same frequency or the same PI code as the broadcast station received at the start of auto preset is not preset. Therefore, it is possible to preset a broadcast station desired by the user without performing complicated work.

  Next, the operation of the RDS broadcast receiving apparatus 1 in mode B will be described using FIG. FIG. 4 is a flowchart showing the operation of the RDS broadcast receiving apparatus 1 in mode B. In this figure, the same parts as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In step SB12, the control unit 6 determines whether or not the scanning of the broadcasting station has reached the upper limit frequency. When the scan has not reached the upper limit frequency (step SB12: NO), the control unit 6 determines whether or not the user has performed an operation for canceling the auto preset on the operation unit 9 (step SB13). When the above operation is performed (step SB13: YES), the control unit 6 stops the auto preset (step SB14). If the above operation has not been performed (step SB13: NO), the control unit 6 moves the process to step SA3 and starts scanning the broadcast station again.

  On the other hand, when the broadcast station scan reaches the upper limit frequency in step SB12 (step SB12: YES), the control unit 6 determines whether or not there is an empty channel in the channel table 30 (step SB15). When there is no empty channel (step SB15: NO), the control unit 6 stops the auto preset (step SB14). When there is an empty channel (step SB15: YES), the control unit 6 converts the frequency data 31B, PI code data 31C, and reception level data 31D stored in the current channel table 31 into empty channels in the channel table 30. (Step SB16), and auto-preset is stopped (step SB14).

  Thus, according to mode B, in the auto preset, after the FM band scan ends, when there is an empty channel in the channel table 30, the broadcast station received at the start of the auto preset is preset, so that the user's A desired broadcast station can be preset and the channel table 30 can be used efficiently.

Furthermore, according to the present embodiment, in mode A and mode B, it is determined whether or not the acquired broadcast station is to be stored in the channel table 30 by comparing not only frequency data but also PI code data. Therefore, for example, even when FM / Band has a situation in which there are broadcast stations with different frequencies and the same program (the same PI code data), by executing auto-preset, the broadcast desired by the user can be performed. You can preset stations.
In addition, as an example of the above-mentioned “state in which broadcast stations with different frequencies and the same program exist”, the RDS broadcast receiving apparatus 1 is mounted on a vehicle, and the vehicle is positioned at the boundary of the reception area. It may be the case.

  Furthermore, according to the present embodiment, when auto-preset is performed in an area where there are many receivable broadcast stations, the frequency of performing auto-preset can be reduced. That is, conventionally, after executing auto-preset, when the currently received broadcast station is preset, it was necessary to perform auto-preset many times until the broadcast station is no longer preset. According to the embodiment, since the currently received broadcasting station is not preset in mode A and preset in low priority in mode B, the number of times that auto-preset is executed is reduced.

The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied within the scope of the present invention.
For example, in the present embodiment, in comparison between the data stored in the current channel table 31 and the work channel table 32 (see steps SA6 and SA7 in FIGS. 3 and 4), the frequency data and the PI code data Although a comparison is performed, this may be a comparison of only frequency data or PI code data.

  Further, the RDS broadcast receiving apparatus 1 according to the present embodiment has a function of receiving multiple broadcast signals such as RDS broadcast, but it is not always necessary to have this function. In this case, since the PI code of the broadcasting station cannot be received, the data stored in the work channel table 32 and the current channel table 31 is compared with the frequency data (step SA7 in FIGS. 3 and 4). No comparison is made.)

  In this embodiment, the value stored in the channel table 30 is reset in step SA2. However, it is not always necessary to reset, and the channel in which the next value is stored in the channel table 30 by the pointer. When the value is stored in the channel table 30, the value may be overwritten on the channel indicated by the pointer.

The block diagram which shows the functional structure of the RDS broadcast receiver which concerns on this embodiment. (A) is a figure which shows a channel table, (B) is a figure which shows a current channel table, (C) is a figure which shows a work channel table. The flowchart which shows the operation | movement in the mode A of a RDS broadcast receiver. The flowchart which shows the operation | movement in the mode B of an RDS broadcast receiver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 RDS broadcast receiver 2 Antenna 3 Receiving part 4 Amplifier 5 Speaker 6 Control part 7 Memory | storage part 8 Display part 9 Operation part 10 Tuner 11 PLL
12 BPF
13 RDS decoder

Claims (10)

A broadcast station information acquisition unit that scans a reception frequency band and acquires broadcast station information that is information about a receivable broadcast station;
In the broadcast receiving apparatus having an auto-preset function that sequentially stores the broadcasting station information in its own storage unit in association with a predetermined channel,
A memory control unit that prohibits storage of the broadcast station information of the start broadcast station, which is a broadcast station received at the start of the auto preset function, into the storage unit during execution of the auto preset function; Broadcast receiving device. The broadcast receiving apparatus according to claim 1, wherein the broadcast station information includes at least one of frequency information and program identification information. 2. The broadcast according to claim 1, wherein the memory control unit prohibits storage of the broadcast station information having the same program identification information as the program identification information of the start broadcast station in the storage unit. Receiver device. A broadcast station information acquisition unit that scans a reception frequency band and acquires broadcast station information that is information about a receivable broadcast station;
In the broadcast receiving apparatus having an auto-preset function that sequentially stores the broadcasting station information in its own storage unit in association with a predetermined channel,
During the execution of the auto preset function, the broadcast station information of the start broadcast station, which is the broadcast station received at the start of the auto preset function, is used until the scan of all reception frequency bands is completed by the broadcast station information acquisition means. When storage of certain start broadcast station information in the storage unit is prohibited, and there is an empty channel after the scan of all reception frequency regions is completed, the prohibition is canceled, and the start broadcast station information is A broadcast receiving apparatus comprising storage control means for storing in the storage unit in association with the empty channel. The broadcast receiving apparatus according to claim 4, wherein the broadcast station information includes at least one of frequency information and program identification information. 5. The broadcast according to claim 4, wherein the storage control unit prohibits storage of the broadcast station information having the same program identification information as the program identification information of the start broadcast station in the storage unit. Receiver device. In a control method of a broadcast receiving apparatus having an auto-preset function that sequentially stores in a storage unit broadcast station information corresponding to a predetermined channel, information on a receivable broadcast station,
When the auto preset function is started, a process of storing in the storage unit the start broadcast station information that is the broadcast station information of the start broadcast station that is the currently receiving broadcast station;
Scanning the reception frequency region to obtain the broadcast station information;
The acquired broadcast station information that is the acquired broadcast station information is compared with the start broadcast station information, and when these are different, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel. A control method characterized by comprising: In a control method of a broadcast receiving apparatus having an auto-preset function that sequentially stores in a storage unit broadcast station information corresponding to a predetermined channel, information on a receivable broadcast station,
When the auto-preset function is started, a process of storing the start-time broadcast station information that is the broadcast station information of the start-time broadcast station that is the currently receiving broadcast station in a storage unit;
Scanning the reception frequency region to obtain the broadcast station information;
The acquired broadcast station information that is the acquired broadcast station information is compared with the start broadcast station information, and when these are different, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel. Process,
A control method comprising: a step of storing the start broadcast station information in association with a vacant channel in the storage unit when a vacant channel exists after scanning of all reception frequency regions is completed. . In a control program for controlling a broadcast receiving apparatus having an auto-preset function for sequentially storing in a storage unit broadcast station information corresponding to a predetermined channel, which is information relating to receivable broadcast stations,
When the start of the auto-preset function is instructed, the storage unit stores start-time broadcast station information that is the broadcast station information of the start-time broadcast station that is currently receiving the broadcast station,
Scan the reception frequency range, get the broadcast station information,
The acquired broadcast station information which is the acquired broadcast station information is compared with the start broadcast station information, and when these are different, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel. A control program characterized by causing In a control program for controlling a broadcast receiving apparatus having an auto-preset function for sequentially storing in a storage unit broadcast station information corresponding to a predetermined channel, which is information relating to receivable broadcast stations,
When the start of the auto-preset function is instructed, the start-time broadcast station information that is the broadcast station information of the start-time broadcast station that is the currently receiving broadcast station is stored in the storage unit,
Scan the reception frequency range, get the broadcast station information,
The acquired broadcast station information that is the acquired broadcast station information is compared with the start broadcast station information, and when these are different, the acquired broadcast station information is stored in the storage unit in association with a predetermined channel. Let
A control program characterized by storing the start broadcast station information in the storage unit in association with an empty channel when there is an empty channel after scanning of all reception frequency regions is completed.

Images