JP4345257B2 - Television receiver - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a television receiver having an on-screen display function.
[0002]
[Prior art]
In television broadcasting, in order to prevent interference between stations, broadcast radio waves are divided into predetermined frequency bands (channels) and assigned to each broadcasting station. This channel is not normally changed. For this reason, in general, a television receiver has a one-to-one correspondence between a channel number assigned to a television broadcasting station and a local oscillation frequency of a tuner for receiving broadcast radio waves of this channel number. The microcomputer incorporated in the John receiver controls the local oscillation frequency of the tuner to a predetermined value based on the channel selection operation, and receives the television broadcast of the selected broadcasting station. However, the allocated frequency band may rarely be changed for some policy reasons.
[0003]
For example, in Australia, the frequency of a conventional broadcast radio wave (video carrier frequency) is 6 MHz to 9 A, between channels 6 to 9 A, 6 MHz between 9 A and 10 channels, 10 and 11 channels. The interval was set to 7 MHz and the interval between the 11th channel and the 12th channel was set to 8 MHz. However, in Australia, when a new television broadcasting station is opened after 1996, the 10th and 11th channels are 1 MHz higher than the conventional frequency so that the frequency interval of the broadcast radio wave between each channel number is 7 MHz. It was obliged to broadcast on the broadcast radio.
[0004]
Therefore, in the case of Australia, for channels 10 and 11, broadcast stations that broadcast at a conventional frequency (hereinafter referred to as standard frequency) and broadcast at a frequency 1 MHz higher than the standard frequency (hereinafter referred to as new frequency). There may be a mix of stations. For this reason, in the conventional television receiver, the channel number and the local oscillation frequency of the tuner are in one-to-one correspondence. Therefore, it is not possible to receive a television broadcast of a broadcasting station that opens after 1996. In addition, a television receiver compatible with the new frequency cannot receive a television broadcast broadcast at a standard frequency. For this reason, a television receiver capable of receiving a standard frequency television broadcast and a new frequency television broadcast is desired.
[0005]
By the way, some television receivers have a frequency adjustment that changes the local oscillation frequency of the tuner for the purpose of receiving non-standard television signals other than broadcast radio waves input from connected game consoles or VCRs. Some have functions. The frequency adjustment function of the television receiver is configured to change the local oscillation frequency in a stepwise manner by a certain frequency each time a predetermined key on the operation unit (remote control) of the television receiver is pressed. In other words, this makes it possible to finely adjust the reception frequency of the tuner by several tens of kHz (generally 62.5 kHz) by a single key press operation so that a non-standard television signal can be received with the best quality. The purpose is that. For example, when the reception frequency is adjusted higher, the frequency is adjusted as shown in FIG.
[0006]
As shown in step 10 of FIG. 5, when the user presses a predetermined key on the remote controller in the direction of stepping up the frequency, the microcomputer of the television receiver performs the key pressing operation within the frequency adjustment range. It is determined whether or not it is an operation (step 11). That is, the microcomputer counts the number of times the frequency step up key is pressed, and determines whether or not the number is equal to or less than a preset upper limit value. If the frequency step-up key has been pressed more than the upper limit value, the process proceeds from step 11 to step 12 to invalidate the frequency changing operation. Therefore, the local oscillation frequency remains unchanged at the upper limit frequency that can be adjusted.
[0007]
On the other hand, if the microcomputer determines in step 11 that the frequency step-up key has been pressed below the upper limit value, the microcomputer proceeds to step 13 and raises the local oscillation frequency by 62.5 kHz, for example, from the current frequency. In step 14, the new local oscillation frequency data is output to a tuner (electronic tuner). In this way, fine adjustment of the reception frequency is performed.
[0008]
[Problems to be solved by the invention]
However, the frequency adjustment function in the television receiver is that the frequency that changes in one step, that is, one step is generally 62.5 kHz, and the frequency of the broadcast radio wave is shifted by 1 MHz as in the case of Australia described above. In this case, the key must be pressed 16 times. For this reason, when the frequency adjustment of 1 MHz is performed, the operation is complicated and a number of key operations are required. Therefore, it is not easy to adjust the frequency such as miscounting the number of operations. In addition, it is necessary for the user to determine whether or not the frequency has been adjusted based on the state of the image displayed on the screen and the sound output from the speaker, and the frequency adjustment may not be performed accurately. is there.
[0009]
The present invention has been made in order to eliminate the drawbacks of the prior art described above. A standard frequency for one channel is different from the standard frequency. Lap The purpose is to enable easy switching between the two when there is a wave number.
[0010]
[Means for Solving the Problems]
In order to eliminate the disadvantages of the prior art, the present invention is based on an operation unit that outputs channel selection information for selecting a broadcasting station, and the channel selection information output by the operation unit. Corresponding broadcast wave A controller for receiving the tuner, and the tuner received by the tuner. Broadcast radio wave In a television receiver having a display unit for displaying video based on Tuning information The reception frequency setting unit that stores the frequency of the broadcast radio wave received corresponding to the frequency that is different from the frequency stored in the reception frequency setting unit. Release From the frequency information of the transmitted radio wave and the frequency information By the operation part of the previous term Selected frequency information In association with the receiving station information that identifies the broadcasting station An on-screen display storage unit that stores the received station information, frequency information, and selected frequency information stored in the on-screen display storage unit by a predetermined operation of the operation unit; And displaying the image superimposed on or replaced with the image displayed on the display unit and the control unit Selected frequency information selected by the operation unit from the frequency information read by Based on the received frequency of the tuner Above It is characterized by switching to the selected frequency information.
[0011]
In the present invention as described above, when a predetermined operation of the operation unit is performed, the control unit receives the receiving station information stored in the on-screen display storage unit, Release The frequency information and the selected frequency information of the transmitted radio wave are read out and displayed by superimposing or replacing the video displayed on the display unit. Further, the control unit switches the received frequency of the tuner to the selected frequency by switching the selected frequency information based on the channel selection information output from the operation unit. Therefore, when there is a standard frequency and a new frequency for a broadcast radio wave of one channel number, the frequency switching operation can be easily performed.
[0012]
Further, the control unit determines the frequency of the broadcast radio wave stored in the reception frequency setting unit from the frequency information based on a predetermined operation of the operation unit. By the operation unit The selected frequency information is selected. rewrite You can
[0013]
On-screen display The function of reading out the receiving station information, frequency information, and selected frequency information stored in the storage unit and displaying the information superimposed on or replaced with the video displayed on the display unit is the frequency stored in the reception frequency setting unit. Different Release It can be configured to operate limited to a channel in which a radio wave exists.
[0014]
As described above, the control unit determines the frequency of the broadcast radio wave stored in the reception frequency setting unit from the frequency information based on a predetermined operation of the operation unit. Depending on the operation unit In selected frequency information rewrite Therefore, the frequency information by the broadcast radio wave selection operation is maintained, and the trouble of the broadcast radio wave switching operation is eliminated.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of a television receiver according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a block diagram of a television receiver according to an embodiment of the present invention. In FIG. 1, a television receiver main body 20 includes a tuner 24 connected to an antenna 22 for receiving a high-frequency television signal that is a broadcast radio wave.
[0016]
The tuner 24 is an electronic tuner, and includes a high-frequency amplifier circuit 26 that amplifies a high-frequency television signal received by the antenna 22, and a PLL (Phase Locked Loop) circuit 28 that receives reception frequency information from the control unit 40 via a bus line. A local oscillation circuit 30 whose oscillation frequency is controlled by an output signal of the PLL circuit, and a mixer 32 that mixes the output signal of the high frequency amplifier circuit 26 and the output signal of the local oscillation circuit 30 and outputs an intermediate frequency signal. ing.
[0017]
An audio circuit 50 and a video circuit 60 are connected to the output side of the tuner 24. The audio circuit 50 includes an audio filter 52 including a surface acoustic wave filter that extracts an audio intermediate frequency signal from the output signal of the tuner 24, an audio detection circuit 54 provided on the output side of the audio filter 52, and an audio detection circuit And an audio processing circuit 56 connected to the output side of 54. A speaker 42 is connected to the output side of the audio processing circuit 56.
[0018]
On the other hand, the video circuit 60 includes a video filter 62 composed of a surface acoustic wave filter that extracts a video intermediate frequency signal from the output signal of the tuner 24, a video detection circuit 64 connected to the output side of the video filter 62, and a video And a video demodulation circuit 66 provided on the output side of the detection circuit 64. Then, the video detection circuit 64 extracts the composite video signal from the output signal of the video filter 62, and the video demodulation circuit 66 performs color demodulation on the RGB primary color signal from the composite video signal output from the video detection circuit 64, and outputs it. Is displayed as an image on the display unit 44 connected to.
[0019]
The video detection circuit 64 is connected to a synchronization detection circuit 46, which detects a synchronization signal from the composite video signal and inputs it to the control unit 40 as a channel selection signal for television broadcasting. The control unit 40 is composed of a microcomputer, and channel selection information, volume adjustment information, and the like are input from an operation unit (remote controller) 48. In addition, an on-screen display storage unit (OSD storage unit) 70 and a reception frequency setting unit 72 are connected to the control unit 40.
[0020]
Since the OSD storage unit 70 is composed of a non-volatile memory and will be displayed (on-screen display) superimposed on the video displayed on the display unit 44 as will be described in detail later, the received television broadcast Channel selection information indicating a station by channel number, frequency information indicating a plurality of broadcast radio waves to be selected for the broadcast station, selection frequency information indicating which broadcast radio wave is selected, and further output from the speaker 42 Volume information for displaying the volume level is stored. The reception frequency setting unit 72 is composed of a non-volatile memory, and stores the frequency (local oscillation frequency) of the received broadcast radio wave corresponding to the channel selection information (channel number). In the case of this embodiment, the default setting of the television receiver is designated by default as the standard frequency of the local oscillation frequency, and is stored in the reception frequency setting unit 72.
[0021]
When the tuning information is input from the remote controller 48, the control unit 40 reads the local oscillation frequency corresponding to the tuning information (channel number) from the reception frequency setting unit 72, and buses it to the PLL circuit 28 of the tuner 24. Give through the line. Further, as will be described later, the control unit 40, when a predetermined operation of the remote control 48 is performed, the channel number from the OSD storage unit 70, and a plurality of different frequencies of the broadcast radio wave received corresponding to the channel number. The information and the selected frequency information selected from the frequency information are read out, provided to the video demodulation circuit 66, and superimposed on the video to be displayed on the display unit 44.
[0022]
The operation unit (remote control) 48 is configured as shown in FIG. 2, for example, and includes a power on / off key 48a, an input switching key 48b for switching between receiving a television broadcast and playing a video, and a broadcasting station. A channel number key 48c numbered from 1 to 12 for selection is provided. Further, the remote controller 48 has a channel up key 48d and a channel down key 48e for sequentially increasing or decreasing the channel number. Further, the remote controller 48 has a volume increase key 48f and a volume decrease key 48g for adjusting the volume output from the speaker 42, and a mute key 48h for setting the output of the speaker 42 to zero.
[0023]
When the channel selection information (channel number) of the television broadcast station is selected via the channel number key 48c of the remote controller 48, the television receiver main body 20 of the present embodiment is similar to a normal television receiver. The broadcast wave from the selected broadcast station is received and the video is displayed on the display unit 44, and the selected channel number is displayed on the upper right of the display unit (display screen) 44 for a predetermined time. In addition, when the television receiver main body 20 depresses a predetermined operation of the remote controller 48, for example, the channel number key 48c and simultaneously depresses the input switching key 48b, a setting menu based on selection frequency information described later is superimposed on the video. Is displayed on the screen in the upper right of the display unit 44. Then, when the setting menu based on the selected frequency information is displayed on the screen, a predetermined operation of the remote controller 48, for example, pressing of the channel up key 48d or the channel down key 48e makes the reception frequency of the tuner 24 the selected frequency. Switching operation can be performed.
[0024]
The operation of this embodiment is as follows. In the following description, the reception frequency of the tuner 24 is higher than the standard frequency set in advance in the reception frequency setting unit 72 for each channel by 1 MHz when the television receiver is initially set. A case where the frequency (new frequency) is switched and received will be described.
[0025]
It is assumed that other channel selection information (for example, channel number 10) is selected via the remote controller 48 from the currently received channel selection information in a state where the television receiver body 20 is on. That is, when “10” of the channel number key 48c of the remote controller 48 is pressed and a 10-channel broadcasting station is selected, the channel selection information is input to the control unit 40 including a microcomputer. The control unit 40 reads the local oscillation frequency received corresponding to the reception station information selected based on the channel selection information from the reception frequency setting unit 72 and sets it in a register made up of a RAM (Random Access Memory). The data of the local oscillation frequency is supplied to the PLL circuit 28 of the tuner 24 via
[0026]
The tuner 24 amplifies a high-frequency television signal (broadcast radio wave) received by the antenna 22 by the high-frequency amplifier circuit 26 and outputs the amplified signal to the mixer 32. The PLL circuit 28 controls the oscillation frequency of the local oscillation circuit 30 based on the local oscillation frequency information given from the control unit 40 and also controls the tuning frequency (reception frequency) of the high-frequency amplifier circuit 26. The high-frequency television signal amplified by the high-frequency amplifier circuit 26 and the local oscillation frequency signal output from the local oscillation circuit 30 are mixed in the mixer 32, converted into an intermediate frequency signal, and output from the tuner 24. The intermediate frequency signal output from the tuner 24 is input to the audio circuit 50 and the video circuit 60.
[0027]
In the audio circuit 50, the audio filter 52 made of a surface acoustic wave filter extracts the audio intermediate frequency signal from the intermediate frequency signal and sends it to the audio detection circuit 54. The sound detection circuit 54 amplifies the sound intermediate frequency signal and detects the sound signal. Then, the sound is output from the speaker 42 via the sound processing circuit 56.
[0028]
On the other hand, the video circuit 60 includes a video intermediate frequency obtained by removing the video intermediate frequency signal and audio signal of the adjacent channels on both sides from the input intermediate frequency signal by the video filter 62 made of a surface acoustic wave filter. The signal is extracted and input to the video detection circuit 64. The video detection circuit 64 amplifies the video intermediate frequency signal extracted by the video filter 62, extracts the composite video signal, and sends it to the video demodulation circuit 66. The video demodulation circuit 66 color-demodulates the composite video signal into RGB primary color signals and displays them on the display unit 44 as video.
[0029]
The synchronization detection circuit 46 connected to the video detection circuit 64 detects a synchronization signal included in the composite video signal output from the video detection circuit 64 and inputs the synchronization signal to the control unit 40. The control unit 40 detects whether the channel selection information (channel number) of the television broadcast station being received is a presence signal or no signal based on the synchronization signal input from the synchronization detection circuit 46.
[0030]
By the way, when the frequency of the broadcast radio wave of the newly opened television broadcasting station is 1 MHz higher than the conventional frequency (standard frequency) (new frequency), the output frequency of the local oscillation circuit 30 is the new frequency at the standard frequency. I cannot receive broadcast waves. Therefore, in the present embodiment, it is possible to perform a switching operation of the selected frequency information so that a new broadcast wave can be received from the OSD storage unit 70 by a predetermined operation of the remote control 48 of the television receiver. It has become. FIG. 3 is a flowchart for explaining the operation of the control unit 40 at the time of a broadcast radio wave switching operation.
[0031]
The processing program shown in FIG. 3 is activated by a predetermined operation of the remote controller 48. For example, when the channel number key 48c “10” is pressed and the input switching key 48b is pressed at the same time, the channel frequency switching processing program incorporated in the television receiver body 20 is activated, and the control unit 40 As shown in step 100, the channel frequency setting menu is read from the OSD storage unit 70 and output to the video demodulation circuit 66 of the video circuit 60.
[0032]
The video demodulation circuit 66 color-demodulates the composite video signal extracted from the broadcast radio wave as described above into RGB primary color signals, and displays the on-screen display signal input from the control unit 40 as the color demodulated signal. As shown in 4 (1), the channel frequency setting menu 92 is displayed so as to be superimposed on the video 90 displayed on the display unit 44. In the present embodiment, the channel frequency setting menu 92 is displayed at the upper right of the display screen, but can be displayed at an arbitrary size at an arbitrary position on the display screen.
[0033]
The channel frequency setting menu 92 is, for example, as shown in FIG. 4B, and includes a channel selection information (channel number) display column 94 that is a receiving television broadcasting station (receiving station information), and a plurality of broadcasts. And a frequency information column 96 indicating radio waves. In the case of the present embodiment, the frequency information column 96 includes “standard” 96a indicating a standard frequency (default specified frequency) at the time of initial setting of the television receiver, and “+1 MHz” indicating a new frequency higher by 1 MHz than the standard frequency. 96b. In the channel frequency setting menu 92, the selected frequency information is indicated by selected frequency information (cursor) 98, indicating that the broadcast radio waves received by the ten channels are the standard frequency.
[0034]
When the control unit 40 displays the channel frequency setting menu 92 on the display unit 44 on the screen in step 100, the control unit 40 proceeds to step 101 and determines whether or not an operation for selecting a received broadcast radio wave (switching operation of selected frequency information) has been performed. To do. When the switching operation of the selected frequency information is not performed, the process returns to step 100. Further, when the channel frequency setting menu 92 is displayed on the screen, for example, when the channel up key 48d or the channel down key 48e of the remote controller 48 is operated, the control unit 40 performs the switching operation of the selected frequency information. As a result, the selected frequency information (cursor) 98 is moved from the position of “standard” 96a shown by the solid line in FIG. 4B to the position of “+1 MHz” 96b as shown by the broken line (step 102). .
[0035]
Then, the control unit 40 determines whether or not the frequency of the selected broadcast radio wave is standard (step 103). When the selected frequency is standard, the control unit 40 reads the standard frequency set in advance in the reception frequency setting unit 72 for the channel and sets it as a local oscillation frequency in a register (not shown) as in step 104. The local oscillation frequency data is supplied to the PLL circuit 28 of the tuner 24 (step 106). In addition, when the selected broadcast radio wave is not the standard frequency, that is, when “+1 MHz” 96b in the frequency information column 96 is selected, the control unit 40 proceeds from step 103 to step 105 and proceeds to a frequency (new) higher than the standard frequency by 1 MHz. Frequency) is set in the register as the local oscillation frequency, and the data of the local oscillation frequency set in the register is applied to the PLL circuit 28 of the tuner 24 (step 106). The tuner 24 selectively receives broadcast radio waves corresponding to the given local oscillation frequency from the high-frequency television signal input from the antenna 22 as described above.
[0036]
Thereafter, when a predetermined operation of remote controller 48 is performed, control unit 40 writes the new frequency in reception frequency setting unit 72 that is a storage unit. In the present embodiment, the predetermined operations of the remote controller 48 are a channel switching operation and an operation for turning off the power.
[0037]
That is, after giving local oscillation frequency data to tuner 24, control unit 40 determines whether or not a channel switching operation, that is, selection of another television broadcasting station has been performed (step 107). When the channel switching operation is performed, the control unit 40 writes the new frequency corresponding to the channel number in the reception frequency setting unit 72 which is a storage unit by the selection operation of the broadcast radio wave (step 108). The control unit 40 reads out the local oscillation frequency corresponding to the broadcast station set in the reception frequency setting unit 72 based on the channel selection information of the newly selected broadcast station, and the PLL circuit 28 of the tuner 24. (Step 109), and the processing of this program is terminated.
[0038]
On the other hand, when the channel switching operation has not been performed, the control unit 40 proceeds from step 107 to step 110, and determines whether or not a power-off operation has been performed by the power key 48a of the remote controller 48. If the power-off operation has not been performed, the process returns to step 100 and the processes in steps 100 to 107 are repeated. If the control unit 40 determines that the power-off operation has been performed in step 110, the control unit 40 proceeds to step 111 and writes the new frequency in the reception frequency setting unit 72. Is finished (step 112).
[0039]
As long as the broadcast radio wave received again is not changed for the channel on which the selection frequency information is switched, the control unit 40 performs the channel on which the selection frequency information is switched (channel 10 in this embodiment). When is selected, the tuner 24 is controlled to receive the frequency written in the reception frequency setting unit 72. Note that the control unit 40 displays the channel displayed on the screen when a predetermined time (for example, 10 seconds) elapses after the channel frequency setting menu 92 in step 100 is displayed or the broadcast radio wave switching operation is performed. The frequency setting menu 92 is erased from the display unit 44.
[0040]
As described above, in the present embodiment, the frequency stored in the reception frequency setting unit 72 is different from the frequency stored in the channel information display field 94 of the channel frequency setting menu 92 displayed on the display unit 44 on the screen. Release The frequency information of the transmitted radio wave is displayed, and the displayed frequency information can be arbitrarily selected by a predetermined operation of the remote controller 48, and the control unit 40 controls the tuner 24 according to this selection and is selected. Since the frequency information is received, even when the frequency of the selected frequency information is different by 1 MHz or more, the selected frequency information can be easily switched. For this reason, when moving by a vehicle or the like, it is possible to easily receive a television broadcast when passing through an area where the frequency of the broadcast radio wave is different while being on the same channel. In addition, since the information on the broadcast radio wave to be selected is displayed on the screen, the broadcast radio wave selection operation (frequency switching operation) can be easily and reliably performed.
[0041]
Further, in the present embodiment, by changing the received channel selection information (channel number) or turning off the power, the frequency set by the selection operation of the broadcast radio wave is set in the reception frequency setting unit 72 and received. Yes. Therefore, since the frequency information by the selection operation of the broadcast radio wave is maintained, the complexity of the broadcast radio wave switching operation is eliminated.
[0042]
In addition, embodiment mentioned above is one Embodiment of this invention, Comprising: It is not limited to this. For example, in the above-described embodiment, the case where the frequency information displayed in the channel frequency setting menu 92 is “standard” 96a and “+1 MHz” 96b has been described. Alternatively, it may be different by 2 MHz, or may be different by −1 MHz relative to the standard. In the above-described embodiment, the case where the selection frequency information displayed as frequency information is two of the standard and the difference of +1 MHz from the standard has been described. However, the selection frequency information is three or more. Also good.
[0043]
In the above-described embodiment, the case where the channel frequency setting menu 92 is displayed when the channel number key 48c and the input switching key 48b of the remote controller 48 are simultaneously pressed has been described. The channel frequency setting menu 92 may be displayed when pressed for a long time (for example, 5 seconds) or longer, or the channel frequency setting menu 92 is displayed when two predetermined keys are continuously pressed. You may make it do. The channel frequency setting menu 92 has been described as being superimposed on the video 90 displayed on the display unit 44. However, the video 90 may be replaced with the channel frequency setting menu 92 for display. Furthermore, in the above-described embodiment, the case where the channel up key 48d or the channel down key 48e is operated when selecting the broadcast radio wave displayed as frequency information has been described. You may do it. Further, in the above-described embodiment, the case where the operation unit is the remote control 48 has been described, but the operation unit includes those provided in the television receiver main body 20.
[0044]
【The invention's effect】
As described above, according to the present invention, the frequency information of a plurality of different broadcast radio waves is displayed on the display unit, and the selected frequency information selected from the frequency information is switched and operated. When there is a standard frequency and a new frequency for the broadcast radio wave of the channel number, the switching operation can be easily performed.
[Brief description of the drawings]
FIG. 1 is a block diagram of a television receiver according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram of an example of an operation unit according to the embodiment of the present invention.
FIG. 3 is a flowchart illustrating a broadcast radio wave switching selection operation of the television receiver according to the embodiment of the present invention.
FIG. 4 is an explanatory diagram showing an example of a channel frequency setting menu according to the embodiment of the present invention.
FIG. 5 is a flowchart illustrating conventional fine adjustment of frequency.
[Explanation of symbols]
20 ......... Television receiver main body, 24 ......... Tuner, 40 ......... Control section, 44 ......... Display section, 48 ......... Operation section (remote control), 50 ......... Audio circuit, 60 ... ... Video circuit, 70 ... On-screen display storage (OSD storage), 72 ... Reception frequency setting section, 92 ... Channel frequency setting menu, 94 ... Channel selection information (channel) display field, 96... Frequency information field, 98... Selected frequency information (cursor).

Claims (2)

An operation unit that outputs a channel number for selecting a broadcast station to receive ,
A control unit that causes a tuner to receive a corresponding broadcast radio wave based on the channel number output by the operation unit;
A display unit for displaying an image based on the broadcast radio wave received by the tuner;
In a television receiver having a,
On-screen display that stores frequency information composed of a plurality of frequencies that can be selected in the channel indicated by the channel number and selected frequency information that indicates the frequency selected by the operation unit from the frequency information in association with the channel number. a storage unit,
A reception frequency setting unit that stores the frequency indicated by the selected frequency information in association with the channel number, and
The control unit reads the channel number , frequency information, and selection frequency information stored in the on-screen display storage unit according to a predetermined operation of the operation unit, and displays the video displayed on the display unit. and displays superimposed or replaced, on the basis of the previous SL frequency information has been selected frequency information selected by the operation unit, for switching operation of the reception frequency of the tuner to a frequency indicated by the selected frequency information,
A television receiver. The television receiver according to claim 1,
The control unit rewrites a frequency corresponding to the channel number stored in the reception frequency setting unit to a frequency indicated by the selection frequency information based on a predetermined operation of the operation unit.
A television receiver.

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