JP6241242B2 - Tuner tuning device - Google Patents

Description

  The present invention relates to a tuner channel selection apparatus that allows a tuner to receive a broadcast station selected by a user's operation, and more particularly to a tuner channel selection apparatus including a touch panel.

Conventionally, a tuner such as a radio receiver is mounted on a vehicle. In recent years, with the widespread use of navigation systems, tuners are built in navigation systems, and the number of devices that use a touch panel as an input device for channel selection or the like is increasing.
Patent Document 1 describes a remote control device that selects a channel using a touch panel. This remote control device displays a bar-shaped slider indicating the tuning range and a cursor movable on the slider on a display unit integrated with the touch panel, and the user touches the cursor with his / her finger either left or right The program information corresponding to the touch position of the finger is displayed on the display unit by performing a sliding operation in the direction of. When the user's finger is released from the cursor, the remote control device selects the broadcast station of the program corresponding to the coordinate position when the user's finger is released.

JP 2009-141602 A

  However, in such a channel selection method, the user needs to operate while viewing the display unit of the remote control device until the operation is completed, which is not desirable as an in-vehicle device. A driver of a vehicle drives mainly while looking at the front and intermittently viewing other places. That is, it is desirable that the channel selection operation can be viewed and operated in a short time so as not to hinder the vehicle operation which is the main operation. For this purpose, it is desirable that the user's operation and the response of the device to this operation are repeated alternately.

  Therefore, an object of the present invention is to provide a tuner channel selection apparatus that can perform a channel selection operation without hindering driving of a vehicle.

A first aspect of the present invention includes a display unit that displays an image, and a touch panel that detects a contact state of a contact object that is provided on and in contact with the display unit, and according to the contact state with the touch panel. A tuner selecting apparatus for performing tuner tuning processing, wherein a touch operation detecting unit for detecting a touch operation with a short contact time of an object touching the touch panel and a tunable frequency band are displayed on a display unit When a touch operation is detected in the display area of the display processing unit and the tunable frequency band, a touch position frequency corresponding to the position where the touch operation is detected is calculated, and a preset range from the touch position frequency is calculated. a primary channel selection processing unit for selecting a frequency as a candidate frequency tuning of inner, Po to a position near the touch operation has been detected in the display unit the selected candidate frequency by the primary channel selection processing unit A second display processor for-up display, when the touch operation to the display area of the candidate frequency is detected, on the basis of the position where the touch operation is detected, determines the frequency to be received from the candidate frequency secondary channel selection process And a section.

As a second aspect of the present invention, there is provided a preset storage unit that stores an arbitrary frequency designated by the user, and the primary channel selection processing unit is present in a preset range from the touch position frequency. Is preferably selected as a candidate frequency.
As a 3rd aspect of this invention, it is provided with the receivable frequency memory | storage part which memorize | stores the frequency which can be received, and a primary channel selection process part exists in the range preset from the touch position frequency. Is preferably selected as a candidate frequency.

As a fourth aspect of the present invention, it is preferable that the primary channel selection processing unit set the frequency for receiving the candidate frequency having the smallest difference from the touch position frequency when a plurality of candidate frequencies are selected.
As a fifth aspect of the present invention, a preset storage unit that stores an arbitrary frequency designated by the user, and a receivable frequency storage unit that stores a receivable frequency, the primary channel selection processing unit, A frequency stored in a preset storage unit existing within a preset range from the touch position frequency is selected as the candidate frequency, and a frequency stored in the preset storage unit exists within a preset range from the touch position frequency. If not, it is preferable to select a frequency stored in a receivable frequency storage unit existing within a preset range from the touch position frequency as a candidate frequency.

  As a sixth aspect of the present invention, the second display processing unit causes the display unit to display a first operation region and a second operation region for instructing a change of the received frequency, and the secondary channel selection processing unit When a touch operation is detected in the first operation area, the frequency to be received is sequentially changed to a smaller one of the candidate frequencies, and when a touch operation is detected in the second operation area, the frequency to be received is selected. It is preferable to sequentially change the frequency to the larger one.

As a seventh aspect of the present invention, it is preferable that the first display processing unit displays a marker at the frequency position stored in the preset storage unit so as to overlap the tunable frequency band.

As described above, according to the first aspect, the frequency around the touch position is displayed as the candidate frequency by the primary channel selection operation in which the position to be selected in the frequency band displayed on the display unit is touch-operated. Since the frequency to be received is determined by the secondary channel selection operation in which the frequency to be selected is touched from the frequency, the target frequency can be narrowed down step by step, and the target can be accurately and quickly repeated with simple touch operations. Frequency can be selected. For this reason, the channel selection operation can be performed without obstructing the driving of the vehicle.
Moreover, since the candidate frequency by the primary channel selection operation is displayed in a pop-up, the selection content of the secondary channel selection can be fed back to the user in an easy-to-understand manner.

According to said 2nd aspect, since the preset frequency which exists in the periphery of the touch position of primary channel selection operation is made into a candidate frequency, the preset frequency preset can be selected easily and a user's load with respect to operation Can be reduced.
According to said 3rd aspect, since the receivable frequency which exists in the periphery of the touch position of primary channel selection operation is made into a candidate frequency, a receivable frequency can be selected easily and a user's load with respect to operation Can be reduced.

  According to the fourth aspect described above, in order to receive the frequency of the candidate frequency closest to the touch position of the primary channel selection operation, some broadcasts are received by the primary channel selection operation, and the channel selection is performed by the primary channel selection operation. Even if the stationed frequency and the frequency that the user wants to tune are different, it is easy to allow time to correct, and after concentrating on driving once, the “division of operation” to perform secondary tuning is It becomes possible.

According to the fifth aspect described above, when there is no preset frequency around the touch position of the primary channel selection operation, a receivable frequency around the touch position is set as a candidate frequency. A receivable frequency is set as a candidate frequency, and a channel selection operation reflecting the user's intention can be performed.
According to said 6th aspect, since the operation area | region for changing the frequency of the touch position of primary channel selection operation is provided, a frequency is selected roughly by primary channel selection, and frequency is finely selected by secondary channel selection. The target frequency can be accurately selected while reducing the number of operations.

According to a seventh aspect of the above, since the display the symbol at the preset frequency superimposed on the tone frequency band signals, to ensure the list of preset frequency, thereby selecting a frequency of exactly the purpose Can do.

FIG. 1 is a diagram showing a tuner channel selection apparatus according to an embodiment of the present invention, and is a conceptual block diagram thereof. FIG. 2 is a diagram of a display screen showing the screen configuration. FIG. 3 is a display screen showing the touch bandwidth. FIG. 4 is a diagram of a display screen showing the secondary channel selection interface of the preset channel. FIG. 5 is a diagram of a display screen showing the secondary channel selection interface of the receivable broadcasting station. FIG. 6 is a diagram of a display screen showing a secondary channel selection interface for manually changing the frequency. FIG. 7 is a flowchart for explaining the processing procedure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1-7 is a figure which shows the tuner channel selection apparatus 10 which concerns on one Embodiment of this invention.
In FIG. 1, a tuner tuning device 10 is mounted on a vehicle 1 and causes a tuner 20 to receive a radio broadcast station selected by a user.
The tuner channel selection device 10 includes a touch panel 15, an image display device 14, an image generation display device 13, an input device 16, a storage device 12, and a control device 11. It is mounted on the navigation system and performs channel selection control for selecting a broadcast station by an operation of the user's touch panel 15 for an image displayed on the image display device 14.

The image display device 14 includes a liquid crystal panel that displays and outputs an image, and displays an image generated by the image generation display device 13. That is, the image display device 14 constitutes a display unit.
The image generation / display device 13 generates and displays an image to be displayed on the image display device 14, and generates and displays an image according to an instruction from the control device 11. As an instruction from the control device 11, for example, position information on the display screen of the image display device 14 is given as display position information, and text or image file information is given as display object information. The image generation display device 13 generates an image in which the indicated display object is displayed at the instructed position, and causes the image display device 14 to display the generated image.

  The touch panel 15 is a transparent thin plate-shaped contact coordinate detection panel that is provided on the display screen of the image display device 14. When a touched object such as a finger comes into contact with the surface of the touch panel 15, as the information of the contact position, for example, the horizontal direction of the display screen of the image display device 14 is the X axis direction, and the vertical direction is the Y axis direction. An X-axis position signal indicating the upper position and a Y-axis position signal indicating the position on the Y-axis are output. The touch panel 15 continues to output the X-axis position signal and the Y-axis position signal while the contact object is in contact, and the time of the continuously output signal and the contact object in between are output. Depending on the presence or absence of movement, the type of operation (touch, slide, etc.) by the contact object can be identified.

Here, the “touch” of the operation with the contact object is an operation of tapping the surface of the touch panel with the contact object (the contact time with the contact object is short), and the “slide” is the operation with the contact object on the surface of the touch panel 15. It is an operation of moving while in contact.
The input device 16 converts the X-axis position signal and the Y-axis position signal output from the touch panel 15 into position information such as coordinate information in pixel units of the display screen with the upper left of the display screen of the image display device 14 as the origin. It converts and outputs to the control apparatus 11.

Based on the information of the input device 16, the control device 11 identifies the type of operation by the contact object, its position, and the movement locus of the contact object. That is, the control device 11 constitutes a touch operation detection unit 11a.
The storage device 12 stores information such as the frequency of a preset broadcast station (preset channel), information such as the frequency of a broadcast station that can be received for each region, and a radio wave intensity that is higher than a value preset by the tuner 20. Information on the frequency as a result of scanning the broadcast station, an image to be displayed on the image display device 14, and the like are stored.

In this preset channel, a broadcast station manually set by the user is set. That is, the storage device 12 constitutes a preset storage unit and a receivable frequency storage unit.
The control device 11 includes a CPU (Central Processing Unit), a memory, and the like, and displays images of preset channels and receivable broadcast stations stored in the storage device 12 in accordance with various control programs stored in the memory in advance. A channel selection instruction is transmitted to the tuner 20 so as to receive the frequency of the broadcast station displayed on the device 14 and selected by the user by operating the touch panel 15.

The tuner 20 is configured to be able to receive radio AM (Amplitude Modulation) / FM (Frequency Modulation) broadcasts, and receives a specified frequency according to an instruction from the control device 11 or scans a receivable frequency to obtain a result. Or reply information.
The tuner channel selection device 10 can select a target broadcast station by repeating a touch operation on the touch panel 15.

For example, when a radio function is selected in the navigation system, the control device 11 reads information on preset channels stored in the storage device 12 and information on receivable broadcast stations. The control device 11 may acquire position information of the host vehicle from the navigation system as information on receivable broadcast stations, and may use information on broadcast stations receivable in the area of the position information, or may be scanned by a tuner. You may use the information of the frequency which was made.
Based on the read information, the control device 11 instructs the image generation and display device 13 to display a tunable frequency band, preset channel registration contents, information on the currently receiving broadcast station, and the like. For example, the image generation / display device 13 generates an image as shown in FIG. 2 and outputs the image to the image display device 14.

  In FIG. 2, an area a1 is an area for displaying a frequency band that can be tuned by the tuner, and the control device 11 displays an equally spaced scale line and a reference frequency on the scale line, and the frequency of the broadcast station currently being received. A vertical line L of a mark is displayed. The position of this area detected by the touch panel 15 is associated with the frequency displayed at the position. For example, the frequency corresponding to the X-axis position and the Y-axis position detected by the touch panel 15 It is determined by the set map. The frequency band may be displayed in a strip shape in a direction parallel to the long side of the display screen of the image display device 14, and in the case of a general horizontally long display screen, it is displayed in a strip shape in the horizontal direction which is the long side. It is good.

The area a2 displays the position of the preset channel on the frequency band. The control device 11 displays a number for identifying the preset channel immediately above the area indicating the frequency band of the area a1, and the correspondence between the preset channel and the frequency. It is easy to put on.
The area a3 is an area for displaying preset channel registration contents, and the control device 11 displays information such as a number for identifying a preset channel and information such as a broadcasting station name if registered.

The area a4 is an area for displaying a receiving broadcast station. The control device 11 registers information such as the frequency being received and the identification number of the broadcast station registered in the preset channel and the name of the broadcast station. If it is, the information is displayed.
An area a5 is an area for displaying a broadcast band, and the control device 11 can recognize a receivable broadcast band by a button and a receiving broadcast band by displaying a frame. When a broadcast band button is touch-operated, the control device 11 switches to the broadcast band reception mode.

  That is, information on preset channels, information on receivable broadcasting stations, and information on receiving broadcasting stations are stored in the storage device for each broadcasting band. When the broadcast band to be received is selected by the broadcast band button, the control device 11 reads the information on the preset channel of the selected broadcast band and the information on the broadcast station that was being received when it was selected last time. The image display device 14 transmits a channel selection instruction to the tuner 20 so as to receive the frequency of the broadcast station that was in the middle, and displays information on the preset channel of the selected broadcast band and information on the broadcast station being received. Switch the display.

  An area a6 is an area for displaying operation buttons, and the control device 11 displays a button for manual tuning, a button for instructing to scan (seek) a receivable frequency, and the like. In FIG. 2, buttons Bd and Bu for manual tuning and seeking instructions are displayed. When this button is touched, the control device 11 increases the reception frequency by a preset value by the button Bu and decreases by the button Bd. When a preset time elapses while the button is pressed, the control device 11 causes the tuner 20 to scan the receivable frequency in the higher frequency with the button Bu and with the lower frequency in the button Bd. When a receivable frequency is detected, the tuner 20 is made to receive the frequency and the scanning process is terminated.

Receivable broadcast stations are not shown in particular, but the color and thickness of the scale lines are changed, for example, in the scale lines of the frequency band in a form that is less conspicuous than the display of the preset channel positions. May be displayed. In that case, it is preferable not to impair the visibility of other displays, such as reducing the number of displays by combining adjacent frequencies together.
From such a state, when a region where the frequency band of the region a1 is displayed is touched with a contact object, the control device 11 displays a frequency (touch position frequency) corresponding to the position where the touch operation is detected by a map or the like. In other words, if there is only one preset channel in the preset touch bandwidth centered on the frequency of the touch position, a tuning instruction is transmitted to the tuner 20 so as to receive the frequency of the broadcast station.

Here, the touch bandwidth is a range of errors that can occur between the frequency that is targeted when the user performs a touch operation and the frequency from the position that is actually detected by the touch panel. As described above, the frequency bandwidth for one index finger on the display screen of the image display device 14 is set and stored in the memory of the control device 11.
When there are a plurality of preset channels in the touch bandwidth, the control device 11 transmits a channel selection instruction to the tuner 20 so as to receive a broadcast station having a frequency closest to the frequency corresponding to the position where the touch operation is detected, and A list of preset channels existing in the touch bandwidth is popped up as a secondary channel selection interface near the position where the touch operation is detected.

In this preset channel list display, for example, as shown in FIG. 4, if the preset channel identification number, broadcast station name, etc. are registered, the control device 11 lists the information in the vertical direction, Enclose with and overlay on other displays.
The control device 11 stores an area displaying each broadcast station in the list of preset channels, and when a touch operation is performed on any of them, the frequency of the corresponding broadcast station is received. A tuning instruction is transmitted to the tuner 20.

When the touch operation is not performed for a preset time in the area displaying the preset channel list, the control device 11 stops displaying the preset channel list.
When there is no preset channel in the touch bandwidth, if there is only one receivable broadcast station in the touch bandwidth, the control device 11 selects the tuner 20 to receive the frequency of the broadcast station. Send instructions.

When there are a plurality of receivable broadcast stations in the touch bandwidth, the control device 11 transmits a channel selection instruction to the tuner 20 so as to receive a broadcast station having a frequency closest to the frequency corresponding to the position where the touch operation is detected. At the same time, a list of receivable broadcast stations existing in the touch bandwidth is displayed as a pop-up near the position where the touch operation is detected as a secondary channel selection interface.
In this list display of receivable broadcast stations, for example, as shown in FIG. 5, the control device 11 displays the information in the vertical direction if information such as receivable broadcast station frequencies and broadcast station names is registered. The list is surrounded by a frame and displayed on top of other displays.

The control device 11 stores an area displaying each broadcast station in the list of receivable broadcast stations, and receives a frequency of the corresponding broadcast station when a touch operation is performed on any of them. As a result, a tuning instruction is transmitted to the tuner 20.
When the touch operation is not performed for a preset time in the area displaying the list of receivable broadcast stations, the control device 11 stops displaying the list of receivable broadcast stations.

When there is no broadcast station that can be received in the touch bandwidth, the control device 11 transmits a channel selection instruction to the tuner 20 so as to receive a frequency corresponding to the position where the touch operation is detected.
And the control apparatus 11 pops up and displays in the vicinity of the position where the touch operation is detected, with the user manually changing the interface as the secondary channel selection interface.

  In the interface for manually changing the frequency, for example, as shown in FIG. 6, the control device 11 makes a list of the frequencies before and after the frequency corresponding to the position where the touch operation is detected centered in the vertical direction. Frequency changing buttons Bl and Br are arranged, surrounded by a frame, and displayed over another display. As for the frequency changing buttons, the left button Bl is a button for decreasing the frequency, and the right button Br is a button for increasing the frequency. That is, the left button Bl constitutes the first operation area, and the right button Br constitutes the second operation area.

The control device 11 stores the positions of the frequency changing buttons Bl and Br. When a touch operation is performed on any of them, the frequency assigned to the corresponding button is changed, and the frequency is changed. A tuning instruction is transmitted to the tuner 20 so as to receive it.
That is, the control device 11 configures a first display processing unit 11b, a primary channel selection processing unit 11c, a second display processing unit 11d, and a secondary channel selection processing unit 11e.

Although the touch bandwidth is the same for the preset channel and the receivable broadcast station, the presence / absence of the broadcast station may be confirmed using different bandwidths.
Also, in the secondary channel pop-up display, there is no need to select the broadcast station that is currently selected, so it is displayed smaller, and broadcast stations with a frequency close to the currently selected broadcast station are displayed larger. The touch operation for selection may be facilitated.

Further, even when there is only one broadcast station in the touch bandwidth by the first touch operation, the information on the broadcast station may be displayed in a pop-up for a certain period of time.
A channel selection control operation by the tuner channel selection apparatus 10 according to the embodiment of the present invention configured as described above will be described with reference to FIG. Note that the tuning control operation described below is executed when the area a1 in which the frequency band is displayed is touched with a contact object.

First, the control device 11 determines whether or not there is a preset channel at a frequency within the touch bandwidth around the frequency corresponding to the position where the touch operation is detected (step S11).
When it is determined that a preset channel exists in the touch bandwidth, the control device 11 transmits a channel selection instruction to the tuner 20 so as to receive a preset channel having a frequency closest to the frequency corresponding to the touched position (step S12). ).

Next, the control device 11 determines whether or not the number of preset channels existing within the touch bandwidth is one (step S13).
When it is determined that the number of preset channels existing in the touch bandwidth is one, the control device 11 ends the process.

When it is determined that there are a plurality of preset channels existing within the touch bandwidth, the control device 11 displays a list of the preset channels, and performs a secondary channel selection for selecting a preset channel from the list by a touch operation. Then, a channel selection instruction is transmitted to the tuner 20 so as to receive the frequency of the selected preset channel (step S14).
If it is determined in step S11 that there is no preset channel in the touch bandwidth, the control device 11 determines whether there is a receivable broadcasting station in the touch bandwidth (step S15).

When it is determined that there is a receivable broadcast station in the touch bandwidth, the control device 11 transmits a tuning instruction to the tuner 20 so as to receive a broadcast station having a frequency closest to the frequency corresponding to the touched position. (Step S16).
Next, the control device 11 determines whether or not the number of receivable broadcast stations existing within the touch bandwidth is one (step S17).

When it is determined that the number of receivable broadcast stations existing within the touch bandwidth is one, the control device 11 ends the process.
When it is determined that there are a plurality of receivable broadcasting stations existing within the touch bandwidth, the control device 11 displays a list of the broadcasting stations, and selects a broadcasting station from the list by a touch operation. A station selection instruction is transmitted to the tuner 20 so as to receive the frequency of the selected broadcast station (step S18).

If it is determined in step S15 that there is no receivable broadcasting station in the touch bandwidth, the control device 11 transmits a channel selection instruction to the tuner 20 so as to receive a frequency corresponding to the touched position (step S15). S19).
Next, the control device 11 displays an interface for manually changing the frequency, causes the secondary tuning to manually change the frequency, and transmits a tuning instruction to the tuner 20 so as to receive the changed frequency. (Step S20).

  Therefore, when the area a1 in which the frequency band is displayed is touch-operated with a contact object, the primary channel selection is performed such that the preset channel closest to the frequency corresponding to the touched position or the receivable broadcasting station is selected and received. When there are multiple preset channels and receivable broadcasting stations within a preset range from the touched position, secondary tuning processing is performed in which a list is displayed and the channel is selected by touch operation. Therefore, the broadcast station can be selected by repeating the touch operation, and the channel selection operation can be performed without hindering the driving of the vehicle.

In addition, when there are a plurality of preset channels and receivable broadcasting stations within a preset range of the frequency corresponding to the touched position, the list is displayed. The burden can be reduced.
In addition, because the preset channel closest to the frequency corresponding to the touched position and the receivable broadcasting station are selected and received, it is in a state of receiving some broadcast until the secondary tuning is performed, It can be made easier to allow time for the secondary channel selection.

Also, when there is no preset channel around the frequency corresponding to the touched position, it is checked whether there is a receivable broadcasting station. A channel selection operation reflecting the user's intention can be performed.
In addition, when there is no broadcasting station that can receive a preset channel around the frequency corresponding to the touched position, a frequency around the frequency corresponding to the touched position and a button for changing the frequency are displayed. Therefore, it is possible to select a rough frequency in the primary tuning and finely change the frequency in the secondary tuning.

Further, since the preset channel closest to the frequency corresponding to the touched position and the receivable broadcasting station are displayed in a pop-up, the result of the primary tuning can be fed back to the user in an easy-to-understand manner.
While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Tuner channel selection apparatus 11 Control apparatus 11a Touch operation detection part 11b First display process part 11c Primary channel selection process part 11d Second display process part 11e Secondary channel selection process part 12 Storage device 13 Image generation display apparatus 14 Image Display device 15 Touch panel 16 Input device 20 Tuner

Claims (7)

A tuner comprising: a display unit that displays an image; and a touch panel that detects a contact state of a contact object that is provided in contact with the display unit, and performs tuner tuning processing according to the contact state with the touch panel A channel selection device,
A touch operation detection unit for detecting a touch operation with a short contact time of the contact object to the touch panel;
A first display processing unit for displaying a tunable frequency band on the display unit;
When the touch operation is detected in the display area of the tunable frequency band, a touch position frequency corresponding to the position where the touch operation is detected is calculated, and the touch position frequency is within a preset range. A primary channel selection processing unit that selects a frequency as a channel selection candidate frequency;
A second display processing unit that pops up the candidate frequency selected by the primary channel selection processing unit in the vicinity of the position where the touch operation of the display unit is detected ;
When the touch operation is detected in the display area of the candidate frequency, a secondary channel selection processing unit that determines a frequency to be received from the candidate frequency based on a position where the touch operation is detected;
A tuner tuning device comprising: A preset storage unit that stores an arbitrary frequency designated by the user,
2. The tuner according to claim 1, wherein the primary channel selection processing unit selects a frequency stored in the preset storage unit existing within a preset range from the touch position frequency as the candidate frequency. Tuning device. A receivable frequency storage unit for storing receivable frequencies;
The said primary channel selection process part selects the frequency memorize | stored in the said receivable frequency memory | storage part which exists in the range preset from the said touch position frequency as said candidate frequency. Tuner tuning device.   The said primary channel selection process part is set as the frequency which receives the said candidate frequency with the smallest difference with the said touch position frequency, when the said some candidate frequency is selected. Tuner tuning device. A preset storage unit for storing an arbitrary frequency designated by the user;
A receivable frequency storage unit for storing a receivable frequency,
The primary channel selection processing unit selects a frequency stored in the preset storage unit existing within a preset range from the touch position frequency as the candidate frequency,
When the frequency stored in the preset storage unit does not exist within a preset range from the touch position frequency, the frequency is stored in the receivable frequency storage unit existing within the preset range from the touch position frequency. The tuner tuning apparatus according to claim 1, wherein the selected frequency is selected as the candidate frequency. The second display processing unit causes the display unit to display a first operation area and a second operation area for instructing a change in the frequency to be received.
When the touch operation is detected in the first operation area, the secondary channel selection processing unit sequentially changes a frequency to be received to a smaller one of the candidate frequencies, and the second operation area is touched. 2. The tuner tuning device according to claim 1, wherein when an operation is detected, the received frequency is sequentially changed to a higher one of the candidate frequencies.   The tuner selection apparatus according to claim 2, wherein the first display processing unit displays a marker at a frequency position stored in the preset storage unit so as to overlap the tunable frequency band.

Images