JP3824520B2 - Broadcast channel setting device and setting method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a television signal receiver with a channel preset automatic channel selection function provided in video equipment such as a television receiver and a video tape recorder.
[0002]
[Prior art and problems to be solved by the invention]
An operation for setting (storing) a channel of a television broadcast to be received by a receiving device using a frequency synthesizer (FS) method, for example, as a system for receiving a television broadcast is referred to as a channel preset. In general, the broadcast channel set for each channel position in this way is selected by selecting the channel position.
There are various channel preset methods, and typical methods will be described.
[0003]
(1) Auto search method
A broadcast that can be received is searched from a low-frequency broadcast, and the broadcast that has been received is automatically preset to the channel position in sequence, but the desired broadcast cannot be set to the desired channel position.
(2) Search method
If the desired broadcast is found and received, the preset operation to the desired channel position is performed for each channel position, but the setting work is troublesome.
[0004]
(3) Directly preset the desired broadcast channel you want to set for the channel position without receiving the broadcast
It cannot be set unless the user knows how many channels the desired broadcast is broadcast on.
[0005]
(4) Automatic setting method of regional broadcasting channel
Store the data for each region in the receiver according to how many channels the television broadcasting station is transmitting, and input the region code that specifies the region at the time of channel preset to this receiver. This is a method of presetting a channel of a broadcast suitable for the region in the channel position by the data of the television broadcast classified by region.
This method is an excellent setting method that has an advantage that a desired broadcast channel can be accurately set to a desired channel position. First, the user must always input a code for designating a region.
[0006]
By the way, the terrestrial television broadcasting wave reception area (hereinafter referred to as a station) is limited in the area where radio waves can be received, and it is impossible to cover the whole country with one station, and there are many stations. To do.
A plurality of television broadcasts are transmitted from the station, and the frequency (broadcast channel) of the transmission radio wave of the television broadcast differs from station to station in order to prevent interference. However, not all stations are different, and the same may occur between non-adjacent stations. The fact that the transmission channels from the stations are different means that the broadcast channels differ from region to region even in the same broadcast.
[0007]
In the automatic setting method of regional broadcast channels (4), the number of channels of a plurality of television broadcasts transmitted from individual stations is stored in advance corresponding to the channel position, and the broadcast pattern of the station is stored. I will call it.
[0008]
A pattern number (referred to as a regional code) is assigned to this broadcast pattern, and this is stored in the device as data. By informing the user of the area (city, town, village) that can receive radio waves transmitted from each station and its area code in the instruction manual, etc., the user can input the area code to the device when channel presetting. Based on the area code, the stored broadcast pattern is read and automatically set to the channel position of the device.
[0009]
In this method (4), since the broadcast station name (channel position) is added to the stored data, the broadcast channel of each broadcast station can be set to the intended channel position, and the operation is very simple. Is an advantage, but there is an enormous amount of material that informs the user of the region name and region code covering the whole country. For this reason, there is a problem in that, if the posting region is limited, the region that enjoys the great advantage is limited.
[0010]
For example, it is assumed that the broadcasting patterns for each region of Japanese television broadcasting are classified into 100 types.
The 100 types of classified pattern data are written in the ROM of the microcomputer. Let 100 patterns be 0-99 region codes.
[0011]
To preset a channel, you only need to enter the region code of the stations that can be received. The broadcast station designated according to the pattern data can be set to channel positions 1 to 12 according to the input region code. Therefore, in the channel selection device of the magnetic recording / reproducing apparatus with the built-in recording reservation function provided by Gemsta, Inc. (GEMSTAR, Ltd.), after setting the channel position as described above, it corresponds to each channel position. By setting the guide channel, the guide channel setting is also completed.
Therefore, if the above-described method for automatically setting the regional broadcast channel is used, user operability is improved.
[0012]
However, in order to find and input a region code corresponding to the region where the user lives from among the 100 region codes, an instruction describing 100 pattern numbers (region codes) is required. Moreover, since there are 100 pattern numbers, there is a problem that the area name (or pattern number) to be received is not always known in advance at the place where the user is present.
[0013]
In Japanese Patent Laid-Open No. 8-23489, the broadcast channel preset in the preset operation step corresponds to the channel position where the reception channel for each region stored in the storage means in advance is to be preset. By comparing with the “Regional Broadcast Channel Preset Pattern”, it is possible to specify which pattern the preset broadcast channel corresponds to.
As a result, the local broadcast channel can be automatically set without inputting the regional code.
[0014]
[Problems to be solved by the invention]
However, in the setting method described in Japanese Patent Application Laid-Open No. 8-23489, when the regional broadcast channel preset pattern becomes the same pattern in a plurality of regions, which pattern the preset broadcast channel corresponds to There is a problem that it becomes impossible to specify whether or not.
[0015]
In addition, when receiving receivable broadcasts sequentially from low frequency radio waves and automatically presetting them, not only receive radio waves with a predetermined strong electric field originally in a certain region, but also a weak electric field lower than the electric field strength of this radio wave. You may receive the radio wave.
For example, it is not necessary to receive what is broadcast as a strong electric field radio wave in an area adjacent to the area, but it is often received as a weak electric field radio wave because it is a considerable distance away.
[0016]
As described above, there are two types of received radio waves: a strong electric field radio wave that can be received locally and a radio wave that is not necessarily received but can be received as a weak electric field radio wave.
However, in the channel preset method as described above, only a strong electric field is received, and a strong electric field is used without distinguishing between a strong electric field and a weak electric field. Preset is being performed. That is, presetting is not performed by receiving radio waves of weak electric fields.
[0017]
Accordingly, the present invention has been made in consideration of the above-described circumstances, and it is easy to set a reception broadcast channel corresponding to each region by collating preset patterns for each of a strong electric field and a weak electric field. The task is to do.
[0018]
[Means for Solving the Problems]
The present invention relates to a preset processing unit that sequentially presets a channel of a broadcast station received as a strong electric field broadcast to a predetermined channel position from a low frequency, a channel pattern of the broadcast station received as a strong electric field broadcast, and a weak electric field broadcast. A pattern that can match the channel pattern of the broadcast station received as a strong electric field broadcast channel preset pattern for each region stored in advance, and Pre-stored Search among weak electric field broadcast channel preset patterns for each region. , Matched by two preset patterns that can be matched Identify the region area When the specific processing unit and the searched pattern that can be matched are specified as the only region, the received signal is received as a strong electric field broadcast using the strong electric field broadcast channel preset pattern of the region corresponding to the matching pattern. A broadcast channel setting device including a re-preset processing unit for presetting a broadcast station channel and a predetermined channel position is provided.
[0019]
According to this, since a broadcast channel is set using a preset pattern of a broadcast station that is not originally received in a certain area but can be received as a weak electric field broadcast, the user searches for the area code of that area. The broadcast channel can be easily set.
[0020]
Here, the three processing units included in the broadcast channel setting device of the present invention include hardware mainly including a microcomputer mainly including a CPU, a ROM, a RAM, an I / O controller, a timer, and the like. And a program for executing one process. This program is provided by a semiconductor memory such as ROM and RAM, a hard disk, an FD, a CD-ROM, an MO, a CD-R, a DVD-ROM, and other recording devices and recording media, as well as via a communication line. It is also provided by downloading from a server or the like.
[0021]
Furthermore, in the present invention, it is preferable to provide a device or function for detecting the electric field strength of the received radio wave in order to distinguish and receive the radio wave from the broadcast station into the strong electric field broadcast or the weak electric field broadcast.
[0022]
In this case, the present invention provides a first storage unit in which a plurality of preset patterns of broadcast channels of broadcast stations that perform strong electric field broadcast unique to each region are recorded in advance, and a broadcast station that can receive a weak electric field broadcast for each region. A second storage unit in which a plurality of preset patterns of broadcast channels are recorded in advance; an electric field strength detection unit that detects at least a strong electric field and a weak electric field by detecting an electric field intensity of the received broadcast; and a received broadcast that is determined to be a strong electric field A preset unit that sequentially presets the channels in a predetermined channel position from a low frequency, a weak electric field broadcast channel storage unit that sequentially stores received broadcast channels determined to be weak electric fields, and a reception broadcast preset by the preset unit A preset pattern in which a strong electric field pattern that can match a channel is stored in the first storage unit. And a preset pattern in which a weak electric field pattern that can match a received broadcast channel stored in the weak electric field broadcast channel storage unit is stored in the second storage unit. When a strong electric field matching unit that checks whether or not two or more matchable strong electric field patterns are detected by the strong electric field matching unit, the strong electric field pattern is specified by the matching strong electric field pattern. When there is a region specified by the region specifying unit that determines whether or not a weak electric field pattern that can be matched by the weak electric field matching unit can be specified uniquely, and a region specified by the region specifying unit. In addition, a broadcast channel setting including a re-preset unit that presets a broadcast station channel and a predetermined channel position based on a strong electric field pattern of the specific area. It is to provide a location.
[0023]
According to this, since the broadcast channel is set using the broadcast channel preset pattern of the weak electric field, the user does not need to input the area code of the specific area, and can easily set the broadcast channel. Can do.
Each functional unit can be realized by cooperating the hardware and the program as described above.
[0024]
In addition, the present invention presets broadcast station channels received as strong electric field broadcasts sequentially from a low frequency to a predetermined channel position, and receives the broadcast station channel patterns received as strong electric field broadcasts and weak electric field broadcasts. A pattern that can be matched with the channel pattern of the broadcast station that has been stored in advance is stored in a strong electric field broadcast channel preset pattern for each region, Pre-stored Search from the weak electric field broadcast channel preset patterns for each region, 2 channel preset patterns that can be matched Only region But When specified, the broadcast station channel received as a strong electric field broadcast and a predetermined channel position are preset using a local strong electric field broadcast channel preset pattern corresponding to the pattern that can be matched. A broadcast channel setting method is provided.
[0025]
Further, presetting the channel of the broadcasting station received as a strong electric field broadcast sequentially from a low frequency to a predetermined channel position, sequentially storing the channel of the broadcasting station received as a weak electric field broadcast, and the preset Detecting a strong electric field pattern that can match the pattern of a strong electric field broadcast channel from a broadcast channel preset pattern of a strong electric field broadcast station unique to each prestored region, and two or more matching strong electric field patterns Is detected for each region that is stored in advance, the weak field pattern that can be matched with the stored channel pattern of the weak electric field broadcast for each region that is identified by the matching strong electric field pattern. Among the broadcast channel preset patterns of broadcast stations that can be received as weak electric field broadcasts, A step of determining whether or not a weak electric field pattern exists, and presetting a broadcasting station channel and a predetermined channel position based on a strong electric field pattern in a specific area corresponding to the weak electric field pattern The present invention provides a broadcast channel setting method characterized by comprising steps.
This method is realized by the microcomputer operating based on a program describing processing of each function. According to this method, it is possible to easily set a channel in a region where the user lives by simply performing an operation that prompts the user to start the channel setting first.
[0026]
Also, the present invention sequentially presets the channel of the broadcast station received as a strong electric field broadcast to a predetermined channel position from a low frequency. Step A channel pattern of a broadcast station received as a strong electric field broadcast, and a channel pattern of a broadcast station received as a weak electric field broadcast, respectively, Pre-stored Search among weak electric field broadcast channel preset patterns for each region. , By two matching channel preset patterns Identify the region Step When the searched matching pattern is identified as the only region, the broadcasting station channel received as the strong electric field broadcast using the strong electric field broadcasting channel preset pattern of the region corresponding to the matching pattern. And preset the channel position again And a broadcast channel setting program characterized in that Is to provide.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below based on the embodiments shown in the drawings. However, this does not limit the present invention.
FIG. 1 is a block diagram showing the main part of one embodiment of a recording reservation apparatus to which the method for automatically setting regional broadcast channels according to the present invention is applied.
The broadcast channel setting device of the present invention can be configured as one independent device and incorporated in the recording reservation device. Usually, however, the hardware components mounted on the recording reservation device and the hardware are combined. In some cases, it is not possible to physically extract only the broadcast channel setting device.
As shown in FIG. 1, the recording reservation apparatus is composed of the following functional blocks.
[0028]
(1) A channel selection unit 1 having a plurality of channel positions and receiving a broadcast channel using channel selection data.
(2) Electric field strength detection unit 2 for detecting the electric field strength of the broadcast channel received by the channel selection unit 1
(3) In the preset mode, based on the auto search instruction, the channel selection unit 1 is made to receive sequentially from the low frequency broadcast channel using the channel selection data, and the received strong electric field broadcast channel is sequentially set to the channel position. The preset unit 3 that presets the channel position of the tuning unit 1 to the broadcast in the area
[0029]
(4) A weak electric field broadcast channel storage unit 4 which sequentially stores broadcast channels detected as weak electric fields by the electric field intensity detection unit 2 at the preset time.
(5) Strong electric field broadcast channel pattern information storage unit 5 for each region that stores the received broadcast channel for each region in association with the channel position where it should be preset.
(6) Area-specific weak electric field broadcast channel pattern information storage section 6 defining broadcast channels in adjacent areas unique to each area
(7) Microcomputer 7 for performing predetermined processing on each functional block
(8) Display unit 8 for displaying each processing state
[0030]
In addition to this, although not shown, a memory for storing information necessary for executing the processing of each functional block, information indicating a correspondence relationship between a preset channel position and a broadcast channel, A memory for storing a program for causing the microcomputer 7 to execute processing is provided.
As these memories, in addition to a semiconductor memory such as a RAM and a flash memory, and a disk medium such as a hard disk, other various recording media can be used.
[0031]
Moreover, it is preferable that the program and the regional strong electric field broadcast channel preset pattern and the regional weak electric field broadcast channel preset pattern stored in advance are preferably stored in a nonvolatile read-only memory such as ROM, but other RAM, hard disk, etc. You may memorize | store in this recording medium.
[0032]
In this embodiment, the broadcast channel set to the channel position is a channel of a broadcasting station that emits a radio wave of a strong electric field in a certain region in principle, and the channel of the broadcasting station received as a radio wave of a weak electric field is the channel position. Shall not be set. That is, the pattern of the weak electric field broadcast channel is used to uniquely identify the channel pattern of the strong electric field broadcast station in the area and set the strong electric field broadcast station to the channel position. However, although different from the original purpose of the present invention, the broadcast channel of the broadcast station with a weak electric field may be set to an empty channel position even if the image is somewhat poor.
[0033]
The electric field intensity information detected by the electric field intensity detector 2 and the auto search instruction input by the preset unit 3 are given to the microcomputer 7.
[0034]
In the present invention, the microcomputer 7 mainly performs the following three processes.
A) Preset processing for tuning unit 1
B) A specific process for specifying a broadcast channel pattern in which region the broadcast channel preset by auto search is a pattern
C) Re-preset processing for resetting the specified broadcast channel to the channel position of the tuning unit 1.
[0035]
In the preset processing A, when an auto search instruction is given in the preset mode, the channel selection data is sequentially supplied to the channel selection unit 1 based on this, and the channel selection reception is sequentially received from the low frequency broadcast channel. The broadcast channel numbers thus created are sequentially stored in the memory in correspondence with the channel positions of the channel selection unit 1.
[0036]
Here, when a radio wave is received by auto search, the electric field strength detection unit 2 measures the strength of the radio wave and compares it with a predetermined threshold electric field strength, so that the received radio wave is a strong electric field or Judge whether the electric field is weak.
The broadcast channel number of the radio wave determined to be a strong electric field is stored in the memory in association with the channel position, for example, as shown in FIG.
On the other hand, the broadcast channel number of the radio wave determined to be a weak electric field is stored in the memory in association with a predetermined storage position, for example, as shown in FIG.
[0037]
In the specific processing B, the broadcast channel pattern of the area preset by the preset unit 3 is stored in advance in the broadcast channel pattern of each area stored in the regional strong electric field broadcast channel pattern information storage unit 5. By collating, the broadcast channel pattern set in the preset unit 3 is identified as the broadcast channel pattern in which region is stored in the regional strong electric field broadcast channel pattern information storage unit 5 To do. Then, in the re-preset process C, the relationship between the channel position and the broadcast channel for the channel selection unit 1 is reset so as to match the specified broadcast channel pattern.
[0038]
If it is not possible to specify one pattern in the specifying process B, the broadcast channel stored in the weak electric field broadcast channel storage unit 4 is stored in advance in the weak electric field broadcast channel pattern information storage unit 6. By comparing with the weak electric field broadcast channel preset pattern for each area, the pattern corresponding to the broadcast channel set by the preset unit 3 is specified. Note that the re-preset process C is the same process as conventionally performed.
[0039]
Next, the local broadcast channel automatic setting process in the recording reservation apparatus of the present invention will be described with reference to one embodiment shown in FIGS.
In the following, the “region-specific strong electric field broadcast channel preset pattern” stored in the storage unit 5 is “preset pattern S”, and the “region-specific weak electric field broadcast channel preset pattern” stored in the storage unit 6 is “weak electric field”. This is called “pattern W”.
In the following embodiments, Japanese television broadcasting is described as an example, but it can also be applied to foreign broadcasting.
[0040]
FIG. 2 is a flowchart executed by the microcomputer 7 for the automatic setting process of the regional broadcast channel.
In Japan, channels of each broadcasting station are allocated to 62 broadcasting channels of VHF 1ch to 12ch and UHF 13ch to 62ch.
Broadcaster assignments vary from region to region.
[0041]
FIG. 3 shows an example of a regional broadcast channel pattern when the region is classified into 100 types.
FIG. 4 shows the pattern shown in FIG. 3 with the addition of guide channel notation for several areas.
As described above, the information shown in FIGS. 3 and 4 is stored in advance in the ROM or the like as a regional strong electric field broadcast channel preset pattern (preset pattern S).
[0042]
First, in FIG. 2, when it is detected that the user has pressed the preset key of the reservation device, the preset mode is set (steps S1 and S2). Next, the user selects auto when selecting auto search or manual search (step S3). As a result, VHF with the lowest video carrier frequency is used for auto search.
Start from 1ch (step S4).
[0043]
When the first strong electric field broadcast is found, the found broadcast channel is preset to channel position 1 (steps S5 and S6), and when the next strong electric field broadcast is found, it is preset to channel position 2, Repeat until UHF 62ch (step S7). As a result, presets are sequentially performed from position 1 to position 12 in the order received.
[0044]
At this time, if the field intensity detection unit 2 determines whether the searched broadcast station is a strong electric field, a weak electric field, or no station, and determines that the broadcast station is a weak electric field broadcast, Are stored in the memory. (Steps S8 and S9).
In this embodiment, the pattern of the strong electric field broadcast channel preset by auto search is as shown in FIG. 5 or FIG. 6, and the preset pattern of the weak electric field broadcast channel is as shown in FIG. .
[0045]
If no strong electric field broadcast is found even after searching for UHF 62ch in step S4, a preset invalid (NG) warning is displayed and the preset mode is canceled (steps S10 to S12).
[0046]
In step S4, if one or more strong electric field broadcasts are found by searching up to UHF 62ch, the microcomputer 7 stores a broadcast pattern including the same channel combination as the preset broadcast channel combination in a ROM or the like in advance. The stored preset pattern S is collated (step S13).
[0047]
For example, when a preset strong electric field broadcast channel has a pattern as shown in FIG. 5 (when VHF 4ch, VHF 6ch, VHF 10ch, VHF 12ch, UHF 21ch, UHF 27ch, UHF 35ch exist as broadcast channels). A search is made for a broadcast pattern matching the combination of the broadcast channels from the preset pattern S of FIG.
In the case of FIG. 5, it can be seen that the preset pattern that can be matched among the 100 patterns is the pattern of the region number 3 (step S14).
[0048]
Next, it is determined whether or not there is only one pattern in the ROM that matches the preset pattern (step S15).
If there is only one matching pattern (as in the example of FIG. 5), it can be determined that the area number has been determined. The process is automatically redone to set a guide channel (step S16). This completes the preset of the desired broadcast station number at the desired channel position, and the automatic setting confirmation screen is displayed on the television and the process is terminated. (Step S17). Thus, the automatic setting of the regional broadcast channel is completed.
[0049]
Next, the case where the pattern of the broadcast channel of the strong electric field preset by the search in step S4 is a pattern as shown in FIG. 6 will be described.
FIG. 6 shows an example in which the broadcast channel pattern of the strong electric field preset by the auto search cannot be specified as one of the preset patterns S shown in FIG.
[0050]
As shown in FIG. 6, when VHF 2ch, VHF 9ch, VHF 11ch, UHF 31ch, UHF 33ch, UHF 35ch are present as broadcast channels, searching for a broadcast pattern that matches this combination of broadcast channels from FIG. Since there are two area numbers 49, the transmission pattern of the broadcast received in step S15 cannot be specified. As shown in FIG. 4, in the area number 19 and the area number 49, the guide channel set is different even if the broadcast channel preset in each channel position is the same. Therefore, the guide channel cannot be automatically set as it is. . That is, it is not possible to determine which of the two area numbers should be selected only with the broadcast channel pattern of the strong electric field.
[0051]
Therefore, it is stored in advance as follows: weak The specific process is performed using the electric field pattern W. The microcomputer 7 collates the broadcast pattern including the same channel combination as the combination of the weak electric field broadcast channels stored in steps S8 and S9 (FIG. 8) with the weak electric field pattern W stored in advance (FIG. 7). (Step S18).
[0052]
FIG. 7 shows a part of the regional weak electric field broadcast channel preset pattern (weak electric field pattern W).
Here, for example, a pattern in which a preset weak electric field broadcast channel matches a pattern as shown in FIG. 8 (VHF 1ch, UHF 16ch, UHF 52ch are stored as a weak signal broadcast channel pattern) is shown in FIG. Search from pattern W.
[0053]
According to FIG. 7, it can be seen that the region number 49 matches the pattern of FIG. 8 among the region numbers 19 and 49 (step S19).
That is, since the area number can be determined as one, the process proceeds to step S16. In step S16, as described above, automatic rearrangement of channel presets and setting of guide channels are performed, and automatic setting of regional broadcast channels is completed.
[0054]
If there is no matching broadcast pattern in step S18 or if no matching broadcast pattern is specified, the process moves to the GEMSTAR guide channel setting in step S20. This process is the same as that conventionally performed.
[0055]
As described above, the received broadcast channel pattern is stored separately for each of the strong electric field and the weak electric field, and the preset is automatically determined by comparing with the pre-stored strong electric field and the weak electric field broadcast channel preset pattern. By redoing, the preset that matches the guide channel setting is automatically completed. Therefore, it is not necessary for the user to search for and input a desired area code from an instruction manual or the like in which many area codes are written, and the user can easily set the area broadcast channel.
[0056]
【The invention's effect】
According to the regional broadcast channel setting method and apparatus of the present invention, the strong electric field broadcast channel preset received by auto search is compared with the prestored regional strong electric field broadcast channel preset pattern. Even if it is not possible to specify which pattern the preset broadcast channel of the strong electric field corresponds to, the weak electric field broadcast channel pattern performed by the auto search is stored for each region stored in advance. Since the weak electric field broadcast channel preset pattern is collated, it is possible to specify which pattern the preset broadcast channel corresponds to. Therefore, the user does not need to input a desired area code for each area, and the operability of channel setting can be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main part of an embodiment of a recording reservation apparatus to which a regional broadcast channel automatic setting method according to the present invention is applied.
FIG. 2 is a flowchart of an operation for automatically setting a regional broadcast channel according to the present invention.
FIG. 3 is an example of a regional strong electric field broadcast channel preset pattern (preset pattern S) when the region is classified into 100 types.
4 is an explanatory diagram of a pattern obtained by adding notation of a guide channel to the regional broadcast channel preset pattern of FIG. 3;
FIG. 5 is an explanatory diagram (an example in which a region can be specified) of an embodiment of presetting of a strong electric field broadcast channel preset by auto search.
FIG. 6 is an explanatory diagram of an example of presetting of a strong electric field broadcast channel preset by auto search (an example in which an area cannot be specified).
FIG. 7 is an explanatory diagram of an embodiment of a weak electric field broadcast channel preset pattern (weak electric field pattern W) for each region when the regions are classified into 100 types in the present invention.
FIG. 8 is an explanatory diagram of an embodiment of presetting of a weak electric field broadcast channel preset by auto search in the present invention.
[Explanation of symbols]
1 tuning department
2 Field strength detector
3 Preset section
4 Weak electric field broadcast channel storage
5 Regional broadcast channel pattern information storage
6 Weak electric field broadcast channel pattern information storage by region
7 Microcomputer
8 Display section

Claims (5)

A preset processing unit that sequentially presets a channel of a broadcast station received as a strong electric field broadcast from a low frequency to a predetermined channel position, a channel pattern of the broadcast station received as a strong electric field broadcast, and a weak electric field broadcast. matching possible patterns into a channel pattern of the broadcasting station, and searches the weak electric field broadcast channel preset pattern for each region stored prestored in each region strong electric field channels preset patterns and advance respectively can be matched A region identification processing unit for identifying a region associated with two preset patterns, and a strong electric field broadcast channel of a region corresponding to the pattern that can be matched when the searched matching pattern is identified as the only region Receiving as a strong electric field broadcast using a preset pattern Broadcast channel setting device that includes a re-preset processing unit to re-presetting the broadcasting station channel and the predetermined channel position is.   A first storage unit that records in advance a plurality of broadcast channel preset patterns for broadcast stations that perform strong electric field broadcast unique to each region, and a plurality of broadcast channel preset patterns that can be received as weak electric field broadcasts for each region A second storage unit that is recorded in advance, an electric field intensity detection unit that detects electric field strength of the received broadcast and determines at least a strong electric field and a weak electric field, and a channel of the received broadcast that is determined to be a strong electric field is a predetermined channel A preset unit that sequentially presets positions from a low frequency, a weak electric field broadcast channel storage unit that sequentially stores channels of received broadcasts determined to be weak electric fields, and a strong electric field that can match the received broadcast channels preset by the preset unit Whether the pattern is included in the preset pattern stored in the first storage unit Whether or not a weak electric field pattern that can be matched with the received electric broadcast channel stored in the weak electric field broadcast channel storage unit is included in the preset pattern stored in the second storage unit. When two or more matching strong electric field patterns are detected by the weak electric field matching unit to be matched and the strong electric field matching unit, the weak electric field matching is performed for an area specified by the matching strong electric field pattern. If there is an area identification unit that determines whether or not a weak electric field pattern that can be matched by the area is uniquely identified, and an area that is uniquely identified by the area identification unit, the strong electric field pattern of that specific area A broadcast channel setting device comprising a re-preset unit that presets a broadcast station channel and a predetermined channel position based on the above. Broadcast station channels received as strong electric field broadcasts are preset in order from a low frequency to a predetermined channel position in order from a low frequency, and broadcast station channel patterns received as strong electric field broadcasts and broadcast station channels received as weak electric field broadcasts. the match possible patterns into a pattern, and searches the weak electric field broadcast channel preset pattern for each region stored prestored in each region strong electric field channels preset patterns and advance respectively, matching two possible channel preset When a unique area is specified by the pattern, the broadcast station channel received as a strong electric field broadcast and a predetermined channel position are preset using the strong electric field broadcast channel preset pattern corresponding to the pattern that can be matched. Characterized by rework Broadcasting channel setting method.   Presetting a channel of a broadcasting station received as a strong electric field broadcast in order from a low frequency to a predetermined channel position, a step of sequentially storing a channel of the broadcasting station received as a weak electric field broadcast, and the preset strong A step of detecting a strong electric field pattern that can match the pattern of the electric field broadcast channel from a preset broadcast channel preset pattern of the strong electric field broadcast station for each pre-stored area, and detection of two or more matching strong electric field patterns If the weak electric field pattern that can be matched with the stored weak electric field broadcast channel pattern is stored in the weak electric field pattern for each pre-stored area, the region specified by the strong electric field pattern that can be matched. Only present in broadcast channel preset patterns of broadcast stations that can be received as broadcast Determining whether or not there is a weak electric field pattern, and presetting a broadcasting station channel and a predetermined channel position based on the strong electric field pattern of a specific area corresponding to the weak electric field pattern; A broadcast channel setting method characterized by comprising: The channel of the received broadcast stations as a strong electric field broadcasting, comprising the steps of sequentially preset from low frequencies predetermined channel position, strength and channel pattern of the broadcasting stations received as a field broadcasting, broadcasting stations received as a weak electric field broadcasting The channel pattern is searched from the strong electric field broadcast channel preset pattern for each region stored in advance and the weak electric field broadcast channel preset pattern for each region stored in advance, and the region is determined by two channel preset patterns that can be matched. identifying, if the retrieved match possible patterns are identified only region, the strong electric field broadcast channel preset pattern area corresponding to the matching-pattern using, received as a strong electric field broadcasting Broadcast channel and predetermined channel Broadcast channel setting program characterized by executing the steps of re-presetting the position of.

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