JP2004363819A - Channel selecting method for ground digital broadcasting, drawn-up channel setting method, and television receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To individually select drawn-up channels of remote control key IDs even when the they are the same. <P>SOLUTION: It is confirmed whether there exists a broadcasting station having the same remote control key ID inside and outside the same broadcasting area. Further, it is confirmed whether there exists a broadcasting station given the same remote control key ID outside the area. When a broadcasting station having the same remote control key ID is present, a branch number as identification information is added to a drawn-up channel number allocated to the broadcasting station and saved in a television receiver. When a drawn-up channel is selected, a drawn-up channel number including the branch number is specified for direct channel selection which is carried out by specifying the drawn-up channel number. Therefore, a specific broadcasting station can be selected, even when the broadcasting station has the same remote control ID and, hence, the same drawn-up channel number, by using a drawn-up channel number with a branch number. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a channel selection method, a formation channel setting method and a television receiver in digital terrestrial broadcasting.
[0002]
Specifically, when a plurality of broadcasting stations having the same remote control key identification number can be received, identification information for identifying them is added to the organization channel number relating to the broadcasting station, and the broadcasting channel is directly designated by specifying this organization channel number. When selecting a station, by specifying the organization channel number to which the identification information is added, it is possible to receive a terrestrial digital broadcast of a specific broadcasting station among a plurality of broadcasting stations having the same remote control key identification number. Things.
[0003]
[Prior art]
In terrestrial digital broadcasting (terrestrial digital broadcasting), which is scheduled to start broadcasting in the near future, when a television receiver capable of receiving terrestrial digital broadcasting is installed, channel selection is set. This channel setting is automatically performed. Normally, a terrestrial digital broadcast signal is received (scanned), and a remote control key identification signal (remote control key ID) inserted into the terrestrial digital broadcast signal is extracted and separated. After that, the contents are decoded and the channel selection number assigned to the remote control key ID is automatically assigned. By this automatic allocation, a desired channel (broadcasting station) can be selected with one touch only by specifying a channel selection number. Since the broadcasting station can be selected with one touch by the automatically assigned channel selection number, this channel selection number may be called a one-touch key number.
[0004]
Assignment to one-touch keys, in other words, assignment of organization channels to one-touch keys, is performed by the broadcasting station. Here, the organization channel is a virtual channel provided for distinguishing each of a plurality of programs (three programs) that can be received simultaneously by one transmission channel given to the broadcasting station.
[0005]
A typical organization channel of each broadcasting station is assigned to the one-touch key number. When selecting another organization channel, a three-digit channel number (organization channel number) designated for each organization channel is directly input. Will be specified. Therefore, in addition to channel selection by one-touch keys, direct channel selection by designating a three-digit number using, for example, a remote controller can be performed.
[0006]
In the case of performing such direct channel selection, if a conventional technique is used, for example, a channel selection method as disclosed in Patent Document 1 can be used. This tuning method is shown in FIG. FIG. 13 shows an example of a case where a channel is selected using a remote controller (remote control device), and the numbers shown in the figure indicate remote controller key numbers (numerical keys).
[0007]
First, after selecting the "10 key input" key provided on the remote controller, a three-digit organization channel number (for example, remote controller key numbers of 1, 2, and 3) is input, and then a decision key (for example, remote controller key number 12) By pressing this key, a channel with a channel number of "123" can be directly selected.
[0008]
In addition to this channel selection method, a method is conceivable in which a channel is selected immediately after a three-digit organization channel number is pressed. For example, as shown in FIG. 14, when (1, 2, 3) is pressed, when the third digit number "3" is pressed, the knitting channel specified by the three-digit number (123) is immediately sent directly. This is the method of tuning.
[0009]
In the former channel selection method, the channel selection operation does not immediately start even if a three-digit number is input, and the input number is not determined unless the determination key is pressed. For example, if the fourth digit (for example, number 4) is input as shown in FIG. 15, the first input number "1" becomes invalid, and the organization channel number of (234) is designated. It was done. Therefore, even when an erroneous number (numerical number) is input, the correct number is input again one after another, so that the correct channel number can be corrected and the channel can be selected.
[0010]
On the other hand, in the latter channel selection method, the channel selection operation is immediately performed when the three-digit numbers are completed. Therefore, when an incorrect number is input, select the channel once and then input a new correct number, or discard the number input by another means before the three-digit number is prepared. Then, by inputting a three-digit number again, a desired broadcasting station is selected.
[0011]
Considering this, it can be said that the direct channel selection in digital terrestrial broadcasting preferably uses the former channel selection method.
[0012]
[Patent Document 1]
Japanese Patent Publication No. 6-101820
[0013]
[Problems to be solved by the invention]
The relationship between the remote control key ID and the one-touch key number is as shown in FIG. FIG. 16 shows the case of Tokyo as a broadcasting area, and shows the relationship between remote control key IDs and one-touch key numbers at broadcasting stations in Tokyo.
[0014]
For example, since the remote control key ID of the NHK General TV is "1", the number "1" is automatically assigned as the one-touch key number of the remote control. The number “011” is given as the representative organization channel number of the NHK General TV. The representative organization channel number is hereinafter simply referred to as an organization channel number.
[0015]
Since the remote control key ID of the NHK Educational TV is "2", "2" is automatically assigned as the one-touch key number. The channel number of the NHK Educational Television is "021". Similarly, one-touch or two-digit one-touch key numbers for the respective remote control key IDs are automatically assigned to other private broadcasters.
[0016]
Therefore, as described above, when "1" or "2" is designated as the one-touch key number, the NHK general television or NHK educational television can be selected with one touch.
[0017]
Incidentally, the above-mentioned three-digit channel selection number (composition channel number) for designating a composition channel is determined by a broadcasting station in the area. The relationship between the remote control key ID and the three-digit organization channel number is specified so as not to be duplicated within the same area (within the broadcasting area). For example, in the same area, for example, in Tokyo, the remote control key ID “1” is an identification number given to only the NHK General TV, and its organization channel number is “011”.
[0018]
On the other hand, remote control key IDs may be duplicated between broadcast stations outside the area, and different broadcast stations may be assigned to the same remote control key ID. In the case of Tokyo, neighboring regions include Kanagawa Prefecture, Chiba Prefecture, and Saitama Prefecture, and each has a broadcasting station within each region. As shown in FIG. 16, there are terrestrial digital broadcasting stations such as "TV Kanagawa", "Chiba Television Broadcasting", and "TV Saitama" so far.
[0019]
These remote control key IDs are all “3”. On the side of the television receiver, the same number as the remote control key ID is assigned to the one-touch key, but the one with the same remote control key ID is assigned an empty one-touch key. As a result, the one-touch key numbers assigned by these remote control key IDs are "3" for TV Kanagawa, "10" for Chiba TV broadcast, and "11" for TV Saitama as shown in FIG. On the other hand, the three-digit organization channel numbers addressed to the respective broadcasting stations are all the same “031”.
[0020]
In this organization channel number, the first two digits “03” indicate the remote control key ID of the broadcast station, and the third digit number “1” is the channel number (representative channel number) assigned to the broadcast station. . Therefore, in the above case, the organization channel numbers are all the same “031”.
[0021]
Therefore, as for these out-of-range broadcasting stations, a desired broadcasting station can be selected as long as the one-touch key number is used. However, if a three-digit number “031” is input to perform direct tuning, the desired broadcasting station is selected. It is not always possible to select a station.
[0022]
The problem associated with such direct channel selection also occurs in other broadcasting areas. For example, an example of Mie prefecture is shown in FIG. In addition to NHK and private broadcasting in Aichi prefecture, there are five private broadcasting outside the area, and the same remote control key ID exists both within the area and outside the area. A broadcasting station using the same remote control key ID exists outside the area.
[0023]
For example, as an example of crossing the area inside and outside the area, the local broadcasting station “Chukyo Television Broadcasting” and the outside broadcasting area “Mainichi Broadcasting” have the same remote control key ID “4”. Therefore, the respective organization channel numbers are the same number “041”. Similarly, since the in-area broadcasting station “Nagoya Television Broadcasting” and the out-of-area broadcasting station “Asahi Broadcasting” have the same remote control key ID “6”, their organization channel numbers also have the same number “061”.
[0024]
Also, there is an example in which the same remote control key ID is used between out-of-area broadcasting stations. For example, as shown in FIG. Since the ID is “10”, the respective organization channel numbers are also the same number “101”.
[0025]
Because of this relationship, if direct tuning is performed by specifying a three-digit tuning number, a desired broadcast station may not be able to be received. Then, the same problem occurs with respect to direct channel selection regardless of whether the channel selection method as disclosed in Patent Document 1 is employed or the other channel selection methods described above.
[0026]
Therefore, the present invention solves such a conventional problem. In particular, when performing direct channel selection, when the same organization channel number exists, a different branch number (branch number as identification information) is assigned to each of them. The present invention proposes a terrestrial digital broadcast channel selection method, a knitting channel setting method, and a television receiver, which can be added and registered, and by specifying up to the branch numbers, the adverse effects associated with direct channel selection can be eliminated.
[0027]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the terrestrial digital broadcasting channel selection method according to the present invention, when receiving a plurality of terrestrial digital broadcasts having the same remote control key identification number,
By adding identification information to the knitting channel number corresponding to the above remote control key identification number, and using a different knitting channel number even if the remote control key identification number is the same, the ground control unit having the same remote control key identification number Digital broadcasting can be arbitrarily selected.
[0028]
Further, in the composition channel setting method according to the present invention described in claim 5, a step of scanning a digital terrestrial broadcast signal to select each broadcast station,
A step of determining a broadcasting station having the same remote control key identification number inserted in the terrestrial digital broadcasting signal of the selected broadcasting station;
When the same broadcasting station exists, adding identification information to the organization channel number set for the broadcasting station, and storing the organization channel number with the identification information added as a new organization channel number. It is characterized by.
[0029]
Also, in the television receiver according to the present invention described in claim 11, a tuner for receiving terrestrial digital broadcasting,
A signal processing unit having a decoder for demodulating the selected terrestrial digital broadcast signal and decoding the demodulated digital signal;
A video display unit for displaying a video signal from the signal processing unit;
A control unit for controlling the tuner and the signal processing unit;
A remote control signal receiving unit that sends a remote control signal to the control unit,
When there are a plurality of broadcasting stations having the same remote control key identification number, a new organization channel number obtained by adding different identification information to the organization channel number is stored in the memory means provided in the control unit. It is characterized by the following.
[0030]
According to the present invention, digital terrestrial broadcasting is scanned to check whether there is a broadcasting station having the same remote control key ID in the same broadcasting area (within the area) and outside the area. Similarly, it is checked whether or not there is a broadcast station with the same remote control key ID only outside the area. When there is a broadcast station having the same remote control key ID, a branch number as identification information is added to the organization channel number assigned to the broadcast station and stored in the television receiver.
[0031]
At the time of selecting a knitting channel, in the direct channel selection by specifying a knitting channel number, a knitting channel number including this branch number is specified. The original organization channel number is three digits, and the branch number constitutes the fourth digit. Therefore, the organization channel is selected by designating the four-digit number. Thus, even if the broadcasting station has the same remote control key ID and therefore has the same organization channel number, a specific broadcasting station can be selected by using the organization channel number with the branch number.
[0032]
When there is a broadcasting station having the same remote control key ID in the area and outside the area, the branch number in the area is set to “0”, and the broadcasting stations outside the area are branched in the order of the area identification numbers assigned to the broadcasting stations. The number is assigned, for example, from “1”. When there is a broadcast station having the same remote control key ID only outside the area, branch numbers are assigned in the order of area identification numbers, for example, from “1”.
[0033]
In this way, by adopting a knitting channel setting method of resetting the knitting channel number using the identification information, any broadcasting station can be reliably selected even if there is a duplicate knitting channel number. become. When the organization channel numbers overlap, identification information is added to the overlapping organization channel numbers, and a desired broadcasting station can be selected by employing a channel selection method using the organization channel numbers including the identification information.
[0034]
If a broadcasting station having an overlapping channel number can be received, a memory means for registering a channel number obtained by adding identification information to the overlapping channel number as a new channel number can be provided in the television receiver. For example, direct channel selection is possible by designating the organization channel number including the identification information, whereby an arbitrary broadcast station can be selected.
[0035]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a method of selecting a terrestrial digital broadcast, a method of setting an organization channel, and a television receiver according to the present invention will be described in detail with reference to the drawings.
[0036]
FIG. 1 is a system diagram of a main part showing an embodiment of a television receiver 10 according to the present invention. The terrestrial digital broadcast wave (UHF broadcast wave) received by the UHF antenna 12 is supplied to the tuner 14, and the desired broadcast station (terrestrial digital broadcast wave) is received (selected) by the tuner 14.
[0037]
The tuned digital terrestrial broadcast wave is supplied to the signal processing unit 16, where demodulation and decoding of the terrestrial digital broadcast wave is performed. First, an OFDM demodulation unit 18 demodulates a terrestrial digital broadcast signal that has been subjected to orthogonal frequency division multiplexing (OFDM) modulation. Correction processing is performed, and the stream data is returned to the stream data (Transport Stream (TS) packet data) on the transmission side.
[0038]
Thereafter, the stream data is supplied to the demultiplexing unit 22 and separated into video packet data, audio packet data, and other packet data (electronic program guide (EPG) data, remote control key ID data, data for data broadcasting, etc.). You. The packet data is supplied to a control unit 32 including a CPU, which will be described later.
[0039]
The separated video and audio packet data are supplied to the decoder 24, where the packet data compressed and decompressed by the MPEG2 (Moving Picture Experts Group 2) system is subjected to expansion processing and decoding processing.
[0040]
In this way, the signal processing unit 16 performs demodulation and decoding processing of the received terrestrial digital broadcast signal, and the decoded video signal is displayed in the signal combining unit 26 on a screen display generated by, for example, an OSD (On Screen Demand) unit 28. The combined signals are supplied to the video display unit 30. The screen display signal may be a display signal for displaying an electronic program guide, a display signal for displaying a menu, a display signal for a channel number, or the like. The image display unit 30 can use a flat display monitor or a CRT monitor made of a liquid crystal or the like.
[0041]
The above-described tuner 14, signal processing unit 16, OSD unit 28, and the like are controlled based on control signals from a control unit 32 including a CPU. The control unit 32 is provided with a memory means 34 such as a RAM, which stores data such as a one-touch key number for a broadcast station that can be received by the television receiver 10 and a channel number of the broadcast station. . The knitting channel number includes a knitting channel number with a newly set branch number as described later.
[0042]
The control unit 32 is further provided with a memory means 36 such as a ROM, in which a terrestrial digital broadcast wave scan process for setting a reception broadcast station and a one-touch operation based on a remote control key ID obtained by the scan process are performed. A processing program for assigning a key number, a processing program for adding identification information to a set channel number addressed to a specific broadcasting station, and the like are stored.
[0043]
The control unit 32 is controlled by a remote control signal or the like. For this purpose, the control unit 32 is provided with a remote control receiving unit 38, and supplies a remote control signal and the like received by the remote control receiving unit 38 for channel selection. The control unit 32 decodes the received remote control signal and generates various control signals for executing the corresponding processing.
[0044]
FIG. 2 shows an embodiment of a remote controller 40 applicable to the present invention. A power switch PW for the television receiver 10 is provided at an upper end of the remote control main body 41. In this example, the ten-key (10-key) unit 44 can select up to 12 channels with one touch. A "10 key input" key 51 is provided to enable selection of three digits. In this example, the numeric keys 10 to 12 are dual-purpose keys. The key number 12 is a channel selection key for determining a channel selection, and the key number 11 is a channel number when a branch number is added to the organization channel number. Shows the branch number key for specifying the branch number.
[0045]
A shift key 46 is provided below the numeric keypad 44, and further a menu selection key 50 and keys 52 and 54 for channel and volume adjustment are provided. Note that the types of these keys and the key arrangement provided on the remote control main body 41 are merely examples.
[0046]
Now, in the present invention, when a channel that can be received by the television receiver 10 is set, the process of setting the organization channel number as described below is also performed. The setting process of the organization channel number including the reception channel setting will be described with reference to FIG.
[0047]
As described above, in order to receive a terrestrial digital broadcast, first, a channel setting process is performed. Therefore, when the setting processing mode is selected from the menu, first, automatic reception processing (automatic reception frequency scanning processing) of the terrestrial digital broadcast signal is performed. Then, a remote control key identification signal (remote control key ID) inserted into the received terrestrial digital broadcast signal of the broadcast station is extracted and separated. After that, the content of the remote control key ID is decoded, and the one-touch key number assigned to the remote control key ID is automatically allocated. As described above, in the case of Tokyo, the relationship between the remote control key ID and the one-touch key number in this regional broadcasting station is as shown in FIG.
[0048]
At the same time as the one-touch key number assignment processing, the identification information addition processing of the organization channel number is performed. Therefore, it is determined whether there is a broadcast station outside the Tokyo area that is the same as the remote control key ID assigned to the broadcast station in the area.
[0049]
For example, if the area where the television receiver 10 is to be installed can receive three broadcast stations as out-of-area broadcasts other than Tokyo as shown in FIG. 3, all of the out-of-area broadcast stations use the same remote control key ID “3”. Have.
[0050]
As described above, when the same remote control key ID exists and the same remote control key ID is out of the area, the identification information is automatically allocated in the order of the area identification number of the broadcasting station. Since the organization channel number is composed of a three-digit number, a branch number is preferable as the identification information to be added. In this case, branch numbers are consecutively added to the fourth digit.
[0051]
As a result, as shown in FIG. 3, "1" is automatically assigned as the branch number to "TV Kanagawa" which is the broadcast station with the smallest area identification number. Since the next is "Chiba Television Broadcasting", the branch number is "2", and the branch number of the last "TV Saitama" is "3". Therefore, the new organization channel number is an organization channel number with branch numbers as shown in FIG. If you want to select “TV Kanagawa” and select direct channel selection, the channel number is “031”. ₁ Will be specified. Here, the subscript numbers indicate branch numbers.
[0052]
The same remote control key ID may exist in the same area and outside the area. For example, in the case of Mie Prefecture, as shown in FIG. 4, remote control key IDs overlap between an in-area broadcast station and an out-of-area broadcast station. Further, in the example of FIG. 4, remote control key IDs are duplicated between out-of-area broadcasting stations.
[0053]
In such a case, the process of assigning a branch number from "1" to the organization channel number of the in-area broadcasting station to "0" as a branch number and to the out-of-area broadcasting station in order of the area identification number is performed. Since the branch number “0” can be omitted, for example, if the branch number is assigned by omitting the branch number “0”, the example of Mie Prefecture becomes the organization channel number as shown in FIG. Therefore, for example, when directly selecting "Chukyo Television Broadcasting", the organization channel number "041" is specified. The number "041 ₁ Will be specified.
[0054]
As described above, the branch number is assigned “0” in the area, and is assigned from “1” outside the area. Even if a plurality of the same remote control key IDs exist outside the area and the same number does not exist in the area, the branch number is assigned from “1” to the same remote control key ID outside the area. This is because a broadcasting station in the area at the beginning of the broadcast is not opened, and it is necessary to assign “0” as a branch number of the broadcasting station in the area when the station is opened later.
[0055]
The display and input of the smallest branch number can be omitted. In the case of Tokyo, “TV Kanagawa” is the smallest branch number and can be omitted. In this case, it is “031” as shown in FIG. “Chiba Television Broadcasting” is “031 ₂ ”,“ TV Saitama ”is“ 031 ₃ Is displayed. In the future, if a broadcast station with a remote control key ID of “3” is opened in Tokyo, “TV Kanagawa” will be changed to “031”. ₁ ”And the branch number“ 1 ”are required. “Chiba Television Broadcasting” and “TV Saitama” do not change with the same branch number (the one-touch key number changes).
[0056]
Also, when there is a broadcast station that uses the same remote control key ID outside the area in addition to a broadcast station that straddles the area and outside the area as in the case of Mie Prefecture, the branch number “1” is assigned only to the outside broadcast area. Is done. Also, since the smallest branch number can be omitted, in the case of Mie Prefecture, the organization channel number of “Yomiuri TV Broadcasting” is “101” and the organization channel number of “TV Aichi” is “101” as shown in FIG. ₂ ".
[0057]
Therefore, according to the knitting channel setting method of the present invention, when a plurality of identical remote control key IDs exist, identification information is added to the corresponding knitting channel number, and when direct tuning is performed, the branch number is included. By simply specifying the set channel number, the desired broadcast station can be selected.
[0058]
Next, a method of setting a channel for digital terrestrial broadcasting according to the present invention will be described with reference to the flowchart of FIG. This process is performed at the time of setting up a menu, and it is assumed that the receiving direction of the UHF antenna 12 is set so as to be directed to a broadcasting station so that terrestrial digital broadcast waves can be received.
[0059]
First, the power of the television receiver 10 is turned on, and then an area for determining the receiving location is set (step 62). For example, if the receiving location is Tokyo, the area is set to “Tokyo” as described above. Subsequently, a menu screen is selected, an initial scan mode or a rescan mode is selected from the menu screen (setup screen), and the reception frequency is swept to scan for a receivable broadcast station (step 63).
[0060]
Here, the initial scan mode is a mode performed when the television receiver 10 is installed for the first time. The rescan mode is a mode in which a new channel list is obtained while leaving the conventional channel list. If there is the same channel, overwrite the previous channel list.
[0061]
By selecting this scan mode, the remote control key ID of each broadcasting station is obtained, the one-touch key number is automatically allocated from the obtained remote control key ID, and the allocated one-touch key number is stored in the memory means 34. I do. This scan mode can be performed any number of times, and when the area where terrestrial digital broadcasting is received changes, rescan is performed, and the one-touch key number setting process for the receiving broadcast station that matches the area is performed .
[0062]
Subsequent to the one-touch key number setting processing, next, as a result of scanning (sweeping) the reception frequency, it is analyzed whether a broadcasting station having the same remote control key ID exists (step 64). As a result of the analysis, when there is no broadcast station having the same remote control key ID, the process of adding the branch number to the organization channel number is not performed (step 65).
[0063]
On the other hand, when there is a broadcasting station having the same remote control key ID, and all the broadcasting stations are out-of-area broadcasting stations, in this example, the same area identification numbers are assigned to out-of-area broadcasting stations in the same order. A process of adding the branch number of the organization channel number of the broadcasting station having the remote control key ID from "1" is performed (step 67). The composition channel number with the branch number is stored in the memory means 34 as a new composition channel number.
[0064]
When a broadcasting station having the same remote control key ID exists in the area and outside the area, a branch number of “0” is assigned to the broadcasting channel in the area, and the broadcasting station outside the area is assigned a branch number of “0”. Then, a process of sequentially assigning from "1" based on the area identification number is performed (step 68). The organization channel number having the assigned branch number is stored in the memory means 34 as a new organization channel number for the broadcast station.
[0065]
When the process of adding the identification information of these organization channel numbers is completed, a channel list including the direct channel selection is displayed on the video display unit 30 (step 69). FIG. 8 shows a display example of the channel list. FIG. 8 shows an example of Tokyo. In this example, the names of broadcasters that can be received and their one-touch key numbers and direct channel selection numbers, that is, the organization channel numbers with branch numbers are displayed. Since the branch number of “TV Kanagawa” in FIG. 8 is the smallest, it is omitted and becomes “031”. FIG. 9 is an example of a channel list in Mie Prefecture. By displaying such a channel list, a user can reliably specify a desired broadcasting station (digital terrestrial broadcasting) when performing direct channel selection. The channel list can be redisplayed from the menu list.
[0066]
Next, a method for selecting a digital terrestrial broadcast according to the present invention will be described with reference to FIG. As described above, when there is a broadcasting station having the same remote control key ID in the reception broadcasting area, the organization channel number provided with the branch number as shown in FIG. 8 or 9 is used as the direct channel selection number.
[0067]
Then, of the ten keys provided on the remote controller 40, for example, the ten key number "11" is also used as the ten key number for designating the branch number. The ten key number “12” is also used as the ten key number for the channel selection key (channel selection key) as described above. FIG. 10 shows an example in which a broadcast station is directly selected using the remote controller 40 having such a dual-purpose key.
[0068]
For example, the organization channel number "123 ₁ As shown in FIG. 10, after pressing the "10 key input" key, "1", "2", and "3" are sequentially pressed using the ten key numbers, and then the branch number is specified. Press the numeric keypad number "11". By this operation, the display monitor displays “ground 123_” and an instruction to input a branch number is issued. Here, the “ground” displayed on the video display unit 30 is a terrestrial digital broadcast (broadcasting station).
[0069]
Subsequently, by pressing the numeric keypad number “1” and inputting the numeric keypad number “12”, the input of direct channel selection is completed, and the organization channel number “123” ₁ Is selected. For example, the organization channel number “031 ₁ ", The user can select" TV Kanagawa "and change only the branch number, for example, the channel number" 031 ". ₃ ", You can select" TV Saitama "directly.
[0070]
When the branch number is incorrectly input, for example, as shown in FIG. 11, by pressing "2" following the branch number "1" and pressing the tuning key "12", the organization channel number becomes "123". ₁ "To" 123 ₂ ”, It is easy to correct an input error. In other words, the branch number can be corrected until the tuning key "12" is pressed. Of course, until the branch number key "11" is pressed, the three-digit number can also be corrected as shown in FIG. 12, so that the correction is easy by using the branch number key "11" or the tuning key "12". A simple tuning method can be realized.
[0071]
The OSD section 28 shown in FIG. 1 generates a video display signal in the direct channel selection mode so as to provide such a channel display.
[0072]
【The invention's effect】
As described above, according to the composition channel setting method for digital terrestrial broadcasting according to the present invention, when the same remote control key ID exists, identification information such as a branch number is added to the composition channel number. It is. As a result, even when a plurality of identical remote control key IDs exist, a desired broadcast station can be reliably selected.
[0073]
Further, since the television receiver according to the present invention has the memory means for storing the organization channel number to which the identification information such as the branch number is added, the television receiver is in an area where a plurality of broadcasting stations having the same remote control key ID can be received. However, it has the characteristic that it can receive any broadcast station specified by the user.
[0074]
Further, according to the terrestrial digital broadcasting channel selection method of the present invention, even when a broadcast station having the same remote control key ID and the same organization channel number is selected, a branch number is added. It has the feature that a desired broadcast station can be received simply by directly specifying the organization channel number.
[Brief description of the drawings]
FIG. 1 is a system diagram of a main part showing an embodiment of a television receiver according to the present invention.
FIG. 2 is a plan view showing an example of a key arrangement of a remote control device applicable to the television receiver of FIG. 1;
FIG. 3 is a diagram showing a relationship between one-touch key numbers and organization channel numbers (part 1).
FIG. 4 is a diagram showing a relationship between one-touch key numbers and organization channel numbers (part 2).
FIG. 5 is a diagram showing a relationship between one-touch key numbers and organization channel numbers (part 3).
FIG. 6 is a diagram showing a relationship between one-touch key numbers and organization channel numbers (part 4).
FIG. 7 is a flowchart showing an embodiment of a composition channel setting method according to the present invention.
FIG. 8 is a diagram illustrating a display example after setting a composition channel (part 1).
FIG. 9 is a diagram illustrating a display example after setting a composition channel (part 2).
FIG. 10 is a diagram showing a channel selection order showing an embodiment of a terrestrial digital broadcast channel selection method according to the present invention (part 1).
FIG. 11 is a diagram showing a channel selection order showing an embodiment of a terrestrial digital broadcast channel selection method according to the present invention (part 2).
FIG. 12 is a diagram showing a channel selection order showing an embodiment of a terrestrial digital broadcast channel selection method according to the present invention (part 3).
FIG. 13 is a diagram showing a conventional channel selection order (part 1).
FIG. 14 is a diagram showing a conventional channel selection order (No. 2).
FIG. 15 is a diagram showing a conventional channel selection order (part 3).
FIG. 16 is a diagram showing the relationship between one-touch key numbers and organization channel numbers of digital terrestrial broadcasting (part 1).
FIG. 17 is a diagram showing a relationship between one-touch key numbers and organization channel numbers of digital terrestrial broadcasting (part 2).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... TV receiver, 14 ... Tuner, 16 ... Signal processing part, 18 ... OFDM demodulation part, 22 ... Demultiplexing part, 24 ... Decoder, 28 ... OSD part , 30 ... Video display unit, 32 ... Control unit, 34 ... Memory means, 38 ... Remote control receiving unit

Claims (13)

When receiving multiple terrestrial digital broadcasts with the same remote control key identification number,
By adding identification information to the knitting channel number corresponding to the remote control key identification number and setting a different knitting channel number even if the remote control key identification number is the same, the ground control unit having the same remote control key identification number can be used. A method for selecting digital terrestrial broadcasting, wherein digital broadcasting can be arbitrarily selected. 2. The terrestrial digital broadcasting channel selection method according to claim 1, wherein the terrestrial digital broadcasting channel selection is a direct channel selection by designating the organization channel number. 2. The terrestrial digital broadcasting channel selection method according to claim 1, wherein the identification information is a branch number added to a fourth digit of the three-digit organization channel number. 4. The method according to claim 3, wherein the branch number is added based on an area identification number of a broadcast area. Scanning digital terrestrial broadcasting signals to select each broadcasting station;
A step of determining a broadcasting station having the same remote control key identification number inserted in the terrestrial digital broadcasting signal of the selected broadcasting station;
When the same broadcasting station exists, adding identification information to the organization channel number set for the broadcasting station, and storing the organization channel number with the identification information added as a new organization channel number. A knitting channel setting method characterized by the following. 6. The method according to claim 5, wherein the selection of the terrestrial digital broadcast after setting the composition channel number is a direct channel selection by designating the composition channel number. 7. The knitting channel setting method according to claim 6, wherein the identification information is a branch number added to the fourth digit of the three-digit knitting channel number. When all the broadcasting stations with the same remote control key identification number are out of the broadcasting stations, the method has a step of attaching branch numbers used as the identification information in the order of the area identification numbers addressed to the broadcasting stations. The method according to claim 5, wherein: When a broadcasting station with the same remote control key identification number exists in the same broadcasting area and outside the same broadcasting area, the branch number as identification information added to the organization channel number in the same broadcasting area is set to zero. 6. The method according to claim 5, further comprising the step of assigning the branch numbers to the organization channel numbers outside the same broadcasting area in the order of the area identification numbers where the broadcasting stations outside the same broadcasting area exist. 6. The knitting channel setting method according to claim 5, further comprising the step of displaying a new knitting channel number to which the identification information has been added as a channel list. A tuner for receiving terrestrial digital broadcasts,
A signal processing unit having a decoder for demodulating the selected terrestrial digital broadcast signal and decoding the demodulated digital signal;
A video display unit for displaying a video signal from the signal processing unit;
A control unit for controlling the tuner and the signal processing unit;
A remote control signal receiving unit that sends a remote control signal to the control unit,
When there are a plurality of broadcasting stations having the same remote control key identification number, a new organization channel number obtained by adding different identification information to the organization channel number is stored in the memory means provided in the control unit. A television receiver characterized in that: The television receiver according to claim 11, wherein the selection of the terrestrial digital broadcast is a direct selection by designating the new organization channel number to which identification information is added. The television receiver according to claim 11, wherein the identification information is a branch number added to a fourth digit of the three-digit organization channel number.

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