JP3167579B2 - Channel selection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel selecting device having a built-in tuner such as a television and a video, and more particularly to a channel selecting device having a button for operating a channel.

[0002]

2. Description of the Related Art At present, channel selecting devices having a built-in tuner such as a television and a video have become so popular that it is difficult to think about life without them.

[0003] The number of channels selected by these channel selection devices is increased by the spread of satellite broadcasting (broadcast satellite broadcasting, communication satellite broadcasting, etc.) and cable broadcasting (CATV).
It tends to increase with the year.

In addition, as the functions of channel selection devices such as televisions and videos have become sophisticated and various operations can be performed, the operation section is likely to be complicated, and operations frequently used become difficult to use. Tends to. In order to realize an easy-to-use and multi-functional operation unit, an operation that is frequently used is mainly made easier to use than an operation that is rarely used. The above-mentioned problem cannot be solved if the number of emphasized operations increases, so that the operations to be emphasized must be carefully selected.

Here, the operation of the channel is one of the most frequently used operations over the entire operation of the television, and the operation frequency of the video is not low. Among them, the operation of sequentially forwarding the channel number and the operation of backwardly forwarding the channel number are important. Therefore, a channel selection device having two buttons, a button for forwarding the channel number and a button for backwardly forwarding the channel number, has been used conventionally. I have. In the following, a button for forwarding a channel number is called a forward button, and a button for forwarding a channel number is called a reverse button.

[0006] When these buttons are pressed, a microcomputer (hereinafter abbreviated as a microcomputer) determines a channel number to be newly selected from the currently viewed channel number and the pressed button, and determines the channel number. Is sent to the tuner and the channel display unit. As a result, the channel is selected in the tuner.

The operation of the microcomputer when operating these channel numbers will be described below with reference to the flowchart shown in FIG.

That is, in step 53 (hereinafter abbreviated as S53), the process waits until a button is pressed. S5
When the button is pressed in step 3, it is determined whether or not the button is a forward button (S54).

If the pressed button is a forward button,
The channel number is increased by one, and the data of the channel number is transmitted to the tuner and the channel number display unit (S
55, S56).

Next, the counter t for measuring the time is set to 0 (S57), and thereafter, the value t is increased while the forward button is being pressed, and it is waited that the button is continuously pressed for the time T or more. (S58, S59, S60).

In S60, when t becomes larger than T, the process returns to S55, and the processing when the button is continuously pressed is performed. As a result, if the forward button is kept pressed, the channel numbers are sequentially forwarded one channel at a time T interval.

If it is detected in step S58 that the forward button has not been pressed, the process returns to step S53 and waits until the next button is pressed.

In S54, if the pressed button is not a forward button, it is determined whether the pressed button is a reverse button (S61). If the pressed button is not the reverse button, the process returns to S53 and waits until the next button is pressed.

When the reverse button is pressed in S61,
The channel number is reduced by one, and the data of the channel number is transmitted to the tuner and the channel number display section (S
62, S63).

Next, the counter t for measuring the time is set to 0 (S64), and thereafter t is increased while the reverse feed button is being pressed, so that the button is continuously pressed for the time T or more. Wait (S65, S66, S67).

In step S67, when t becomes larger than T, the process returns to step S62, and the processing when the button is continuously pressed is performed. As a result, when the reverse button is kept pressed, the channel number is reversely transmitted one channel at a time T interval.

If it is detected in S65 that the reverse feed button has not been pressed, the process returns to S53 and waits until the next button is pressed.

By operating the microcomputer as described above, in a channel selection device having two buttons, a forward button and a backward button, the channel number is:
Each time the forward button is pressed for less than a certain time T, 1
Channels are forwarded by channel, and if you keep pressing for more than time T,
The data is sequentially fed one channel at a time T interval. When the reverse button is pressed, the channel number is reversed in the above-mentioned operation instead of sequentially moving the channel number.

[0019]

However, in the above-described channel selection device, if the number of the currently selected channel and the number of the next channel to be selected are apart from each other, the operation required for the channel selection is performed. And the time is increased.

For example, FIG. 9 shows an operation example in which 55 channels are selected after viewing 10 channels, and then 10 channels are selected.

That is, in the state where ten channels are selected (operation step D1), if the forward button is pressed once, the channel number becomes 11 (operation step D).
2).

If the button is kept depressed after pressing the forward button, the channel number is incremented by one at intervals of time T. If you stop pressing the button shortly before reaching the target channel number, the channel number stops increasing. Here, it is assumed that the operation is stopped at channel 52 (operation step D3).

Thereafter, the forward button is pressed three times to set the channel number to 55 (operation steps D4, D5, D
6).

Next, when the reverse button is pressed while channel 55 is selected, the channel number becomes 54. By continuing to press the button as it is, the channel number decreases by one at intervals of time T. When you stop pressing the button, the channel number stops decreasing. Here, it is assumed that channel 14 is stopped (operation step D
7).

Thereafter, the reverse button is pressed four times to set the channel number to 10 (operation steps D8, D9, D1).
0, D11).

As described above, in the conventional channel selection device, the number of operations is large and the operation takes time. In particular, the operation steps D3 and D7 require a long time. Here, if the time T is shortened in the flowchart of the operation of the microcomputer shown in FIG. 8, it becomes difficult to stop at a desired position when the number of channels continuously increases or decreases.
When an attempt is made to increase or decrease each channel, a plurality of channels are increased or decreased at a stretch, and the operability is rather deteriorated. If the time T is set too short, it becomes difficult to watch the channel being increased or decreased on a television or the like, and it becomes impossible to guess the channel number based on the content of the broadcast and select a channel. Therefore, there is a limit to shortening the time T to shorten the operation time.

As described above, in the channel selection device having the button for operating the channel number, as the currently selected channel and the next channel to be selected are separated, the operation and time required for the channel selection become longer. There is a problem of increasing. The solution to this problem becomes more important as the number of channels increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to increase the number of buttons on the operation unit, have an operation unit that is easy to understand and operate, and select an arbitrary channel in a short time. It is an object of the present invention to provide a channel selecting device capable of performing the above.

[0029]

According to a first aspect of the present invention, there is provided a channel tuning apparatus having a button for sequentially forwarding channel numbers and a button for reversely forwarding channel numbers. Button is pressed for less than the predetermined time
Forward one channel at a time, with the forward button
When the button is held down for a predetermined time or more, the channel number is set by sequentially moving a plurality of channels, and a button for reversely moving the channel number is provided .
Reverse feed by one channel each time pressed for less than the specified time
And the reverse button is pressed after the predetermined time.
A channel number setting means for setting a channel number by backward feeding a plurality of channels when the button is continuously pressed upward is provided.

Further, the channel selecting apparatus according to the second aspect of the present invention is characterized in that the number of the plurality of channels is set to ten.

According to a third aspect of the present invention, in the channel selecting apparatus according to the first or second aspect of the present invention,
A button to advance the channel number and a channel number
And a band switching means for switching the selected band to another band when the button for reverse feeding is pressed at the same time.

In a fourth aspect of the present invention, in the channel selecting apparatus according to the third aspect of the present invention, the band switching means switches between the UHF band and the VHF band.

[0033]

According to the configuration of the first aspect of the present invention, in the channel selection apparatus, the channel number setting means changes the channel number by a plurality of channels when the forward button (the button for sequentially forwarding the channel number) is kept pressed. The channel number is set in the forward direction, and if the reverse button (button for reversely feeding the channel number) is kept pressed, the channel number is set in the reverse direction by a plurality of channels.

As a result, it is possible to reduce the time and operation required for the operation of selecting a channel, as compared with the conventional case where the channel is continuously forward-forwarded or backward-forwarded one by one.

Further, when the channel numbers are continuously changed, the time required for the operation and the operation can be reduced without shortening the time interval at which the channel numbers change. As a result, it is easy to stop the change of the channel at a desired position when the channel number is continuously changed, and when trying to increase or decrease for each channel, a plurality of channels are increased or decreased at once. Never.
Further, it is easy to watch the channel being increased or decreased on a television or the like, and the channel can be selected by estimating the channel number based on the content of the broadcast.

Further, it is not necessary to increase the number of buttons for operating the channel.

Further, according to the configuration of the second aspect of the present invention, in the configuration of the first aspect of the present invention, the number of channels that changes when the forward button and the backward button are kept pressed is set to ten channels.

As a result, since the channel number changes by 10, only the tens digit in decimal display changes, and it is easy to predict the next changing channel number.

Next, in the configuration of the third aspect of the present invention ,
In the structure of the invention according to claim 1 or 2, the channel number
Button to forward the channel number, and button to reverse the channel number.
When the buttons are pressed simultaneously, the channel number setting means selects a channel of a band different from the band currently being viewed.

As a result, it is not necessary to separately provide a button for switching the band, and the operation unit can be simplified.
Further, when the operation of switching the band and the operation of changing the channel number are performed continuously, the operation can be performed without releasing the button for operating the channel, so that the operability is improved.

In addition, the time and operation required for selecting a channel in a band different from the band of the channel currently being viewed can be reduced.

According to the configuration of the fourth aspect of the invention, in the configuration of the third aspect of the invention, the band can be switched between the UHF band and the VHF band.

Since the UHF band and the VHF band channels are the most widespread, band switching between the UHF band and the VHF band occurs most frequently.

For this reason, if the band to be switched is limited to the UHF band and the VHF band, the time and operation required for frequently switching the band between the two can be reduced.
Further, the band can be reliably switched between the two bands without erroneously switching to another band.

[0045]

[Embodiment 1] An embodiment of the present invention will be described below with reference to FIGS.

The main part of the channel selection device 1 is shown in FIG.
As shown in FIG. 1A, the antenna 2 includes a tuner 3, an intermediate frequency signal processing circuit 4, a microcomputer 5 (channel number setting means or band switching means), a channel number display section 6, and a channel number operation button 7. I have.

The signal a input from the antenna 2 is VH
Channels in the F (very-high frequency) band and UHF (ultra-high frequency)
uency) Tuner 3 that can select channels in the band
As a result, it is converted into an intermediate frequency signal if composed of video and audio signals of the selected channel. The intermediate frequency signal if is output by the intermediate frequency signal processing circuit 4 as a video signal p and an audio signal s.

The microcomputer 5 (hereinafter abbreviated as the microcomputer 5) sends the channel selection data b of the channel designated by the channel number operation button 7 to the tuner 3, and the tuner 3 selects that channel. Tuning data c for displaying the selected channel
Is sent to the channel number display section 6, and the channel number display section 6 displays the selected channel number.

In this embodiment, as the channel number operation buttons 7, a forward button 8 (a button for sequentially forwarding channel numbers) as shown in FIG.
(Button to reverse the channel number).

The operation of the microcomputer 5 will now be described with reference to the flowchart shown in FIG.

That is, in step 1 (hereinafter abbreviated as S1), it is determined whether or not the button has been pressed. If the button has not been pressed, S1 is repeated, and the process waits until the button is pressed.

When the button is pressed in S1, it is determined whether or not the button is the forward button 8 (S2). If it is not the forward button 8, the process proceeds to the step (S10) described later.

In S2, if the pressed button is the forward button 8, the channel number is forwarded by one (S2).
3) The channel number data is transmitted to the tuner 3 and the channel number display section 6 (S4).

Next, the counter t is set to 0 in order to measure the time (S5), and thereafter, it is determined whether or not the forward button 8 is kept pressed (S6). T if held down
Is increased by one (S7), and t is a predetermined time T
It is checked whether it is greater than (S8). When t is smaller than T, S6 and the subsequent steps are repeated, and it waits until the forward button 8 is continuously pressed for a time T or more.

If t is greater than T in S8, the channel number is advanced by 10 (S9), and then S
4, the processing when the forward button 8 is continuously pressed is performed. As a result, when the forward button 8 is kept pressed, the channel number is set to 10 at time T intervals.
It is sequentially forwarded.

In S6, if it is detected that the forward button 8 has not been pressed, the process returns to S1 and waits until the next button is pressed.

In S2, if the pressed button is not the forward button 8, it is determined whether or not the pressed button is the reverse button 9 (S10). If the pressed button is not the reverse button 9, the process returns to S 1 and waits until the next button is pressed.

If it is determined in S10 that the reverse feed button 9 has been pressed, the channel number is reversed by one (S11), and the data of the channel number is transmitted to the tuner 3 and the channel number display section 6 (S12). ).

Next, the counter t is set to 0 in order to measure the time (S13), and thereafter, it is determined whether or not the reverse feed button 9 is kept pressed (S14). If the button is kept depressed, t is incremented by 1 (S15), and it is checked whether or not t is longer than a predetermined time T (S16). If t is smaller than T, S14 and subsequent steps are repeated, and the reverse feed button 9
Wait until the button is continuously pressed for the time T or more.

In S16, when t becomes larger than T, the channel number is reversed by 10 (S17), and thereafter, the process returns to S12 to perform processing when the reverse button 9 is continuously pressed. As a result, when the reverse button 9 is kept pressed, the channel number is reversely fed by 10 at intervals of the time T.

In S14, if it is detected that the reverse feed button 9 has not been pressed, the process returns to S1 and waits until the next button is pressed.

By operating the microcomputer 5 in this way, the channel number is shorter than the time T and the forward button 8
Each time is pressed, the data is sequentially advanced by one channel. If the forward button 8 is kept pressed for more than the time T, the time T
At 10 intervals. When the reverse feed button 9 is pressed, the channel number is reversed in the above operation instead of sequentially moving the channel number. As a result, when the currently selected channel is distant from the next channel to be selected, the operation and time required for the channel selection can be reduced as compared with the related art.

In addition, the number of channel number operation buttons has not increased as compared with the conventional case. Naturally, the channel operation button section is as simple as the conventional one.

Next, the relationship between the button operation and the channel to be selected in this embodiment will be described with reference to the operation example shown in FIG. Here, for example, a case is described in which 55 channels are selected while viewing 10 channels, and then 10 channels are selected.

That is, in a state where channel 10 is selected (operation step A1), the forward button 8 is set to 1
When pressed once, the channel number becomes 11 (operation step A2).

Next, when the forward button 8 is pressed, the channel number is changed to 12. If the channel number is continuously pressed, the channel number is sequentially advanced at intervals of time T.
2, 32 ... When the user stops pressing the forward button 8, the channel number is not forwarded. Here, it is assumed that the operation is stopped at channel 52 (operation step A3).

Thereafter, the forward button 8 is pressed three times to set the channel number to the target value of 55 (operation step A4,
A5, A6).

Next, when the reverse feed button 9 is pressed while channel 55 is selected, the channel number becomes 54. By continuing to press the button as it is, the channel number is changed at intervals of time T, such as 44, 34,.
Reverse feed is performed by 10 channels. When the user does not press the reverse feed button 9, the channel number is not reversed. Here, it is assumed that the operation is stopped at channel 14 (operation step A7).

Thereafter, the reverse feed button 9 is pressed four times to set the channel number to the target value of 10 (operation step A8,
A9, A10, A11).

The time required for the operation steps A3 and A7 in this operation example is about one tenth of that of the operation steps D3 and D7 in the conventional operation example shown in FIG. The time can be significantly reduced.

Second Embodiment Another embodiment of the present invention will be described below with reference to FIGS. For convenience of explanation, members having the same functions as those shown in the drawings of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Here, since the configuration of the channel selection device 1 is the same as that of the first embodiment, other operations of the microcomputer 5 will be described based on the flowchart shown in FIG.

That is, the process waits until the button is pressed (S1).
8) When the button is pressed, the button is changed to the forward button 8
It is determined whether or not it is (S19).

If the pressed button is the forward button 8, it is determined whether or not the backward button 9 is simultaneously pressed (S20).

When the two buttons are pressed at the same time, it is determined whether or not the channel number (ch) indicates a channel in the VHF band (S21).

At S21, the channel number is VHF
When indicating a band channel (1 ≦ ch ≦ 12)
Sets the channel number to 13, for example, and selects a channel in the UHF band (S22). If the channel number does not indicate a channel in the VHF band, the channel number is set to 1, for example, and a channel in the VHF band is selected (S2).
3).

In this embodiment, for example, 13 channels are selected as the first channel when the UHF band is selected, and
For example, one channel is selected as the first channel in the HF band, but another channel number may be selected in each band.

Next, after transmitting the channel number data to the tuner 3 and the channel number display section 6 (S24), the process returns to S18 and waits until the next button is pressed.

In S20, when the reverse feed button 9 is not pressed, it means that only the forward feed button 8 is pressed. At this time, in the following steps S25 to S30, the same processing as in steps S3 to S8 in the first embodiment is performed, and it is determined whether or not the forward button 8 is continuously pressed after the channel number is sequentially advanced by one.

If it is determined in step S28 that the forward button 8 has not been pressed, the process returns to step S18 and waits until the next button is pressed.

In S30, if t is larger than T, the flow returns to S25, and the processing when the forward button 8 is continuously pressed is performed. As a result, when the forward button 8 is kept pressed, the channel numbers are sequentially forwarded one by one at intervals of the time T.

If the pressed button is not the forward button 8 in S19, it is determined whether or not the pressed button is the reverse button 9 (S31). If the pressed button is not the reverse button 9, the process returns to S 18 and waits until the next button is pressed.

If the reverse button 9 is selected, the reverse button 9
Only that is pressed. At this time, in the following steps S32 to S37, the same processing as in steps S11 to S16 in the first embodiment described above is performed, and after the channel number is reversed by one, it is determined whether or not the reverse button 9 is continuously pressed. judge.

If it is determined in S35 that the reverse feed button 9 has not been pressed, the process returns to S18 and waits until the next button is pressed.

If t is larger than T in S37, the flow returns to S32, and the processing is performed when the reverse button 9 is continuously pressed. As a result, when the reverse feed button 9 is kept depressed, the channel numbers are reversely fed one by one at intervals of the time T.

In the channel selection device having the two buttons of the forward button 8 and the reverse button 9 as described above, by simultaneously pressing the two buttons, the channel number indicating the band different from the band currently being viewed is changed. You can choose.

In this embodiment, bands are switched by simultaneously pressing two buttons, a forward button 8 and a backward button 9, as buttons for operating the channel number. However, the present invention is limited to these combinations. For example, there are two buttons, a button for sequentially moving the tenth place of the channel number and a button for moving forward the first place of the channel number.
The band may be switched by simultaneously pressing two other buttons, such as one button.

As a result, it is not necessary to separately provide a button for switching the band. When switching bands, it is often the case that the channel is changed at the same time, but during these operations, the band can be switched and the channel number can be operated without releasing the hand from the channel operation buttons. improves.

In this embodiment, each time the forward button 8 or the reverse button 9 is pressed for less than the time T,
When the channel number is forward or backward by one channel at a time, and the key is kept pressed for a certain time T or more, the channel number is continuously forward or backward by one channel at time T intervals.

However, the present invention is not limited to this. For example, by continuously pressing a button, forward or backward feed of 10 channels may be performed.

Further, in the present embodiment, the VHF band and the UHF band are selected as the bands that can be switched. However, the present invention is not limited to this. For example, the tuner can transmit satellite broadcasting such as BS broadcasting and CS broadcasting and cable television such as CATV. If the channel can be selected, it may be switched to these.

Next, the relationship between the button operation and the channel to be selected in this embodiment will be described with reference to the operation example shown in FIG.

That is, when the user is watching channel 36 in the UHF band (operation step B1), the forward button 8
When the and the reverse feed button 9 are simultaneously pressed, one channel which is a channel in the VHF band is selected (operation step B).
2).

Further, when only the forward button 8 is continuously pressed, the channel numbers are sequentially advanced one by one at intervals of time T.
If you stop pressing the button, the channel numbers will not be incremented. Here, it is assumed that the operation is stopped at 8 (operation step B
3). Next, the forward button 8 is pressed twice to set the channel number to the target value of 10 (operation steps B4 and B5).

Next, when the forward button 8 and the reverse button 9 are simultaneously pressed while the channel 10 of the VHF band is selected, the channel 13 of the UHF band is selected (operation step). B6).

Subsequently, when only the forward button 8 is continuously pressed, the channel numbers are sequentially forwarded one by one at intervals of time T.
If you stop pressing the button where appropriate, the channel numbers will not be incremented. Here, it is assumed that the operation is stopped at channel 34 (operation step B7).

Further, the forward button 8 is pressed twice to select the target 36 channel (operation steps B8, B
9).

As described above, it is possible to reduce the time and operation required to select a channel in a band different from the band of the channel currently being viewed.

When the band is switched between the UHF band and the VHF band, the time and operation required for band switching between the two can be reduced.
Further, the band can be surely switched between the two without mistakenly switching to another band.

Third Embodiment Still another embodiment of the present invention will be described below with reference to FIGS. For convenience of explanation, members having the same functions as those shown in the drawings of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, the channel number operation button 7 shown in FIG.
It has a zero-order forward button 10 (a button for operating the tenth digit of the channel number) and a first-order forward button 11 (a button for operating the first digit of the channel number). The configuration other than the channel operation buttons is the same as that described in the first embodiment.

In this embodiment, the tenth order forward buttons 10 and 1
Although the order-advance button 11 is made to have the same size, one of them may be made larger than the other to make it easier to distinguish.

Here, the operation of the microcomputer 5 in this embodiment will be described with reference to the flowchart shown in FIG.

First, it waits until a button is pressed (S3
8) When the button is pressed, it is determined whether or not the button is the tenth order forward button 10 (S39).

If the button pressed in S39 is the tenth order forward button 10, the channel number is forwarded ten times (S40), and the data of the channel number is transmitted to the tuner 3.
And to the channel number display section 6 (S41).

Next, the counter t is set to 0 in order to measure the time (S42), and thereafter, it is determined whether or not the tenth order forward button 10 is kept pressed (S43). If the button is kept depressed, t is increased by 1 (S44), and it is checked whether or not t is longer than a predetermined time T (S45).
When t is smaller than T, S43 and the subsequent steps are repeated, and the control waits until the tenth order forward button 10 is continuously pressed for the time T or longer.

If t is larger than T in S45, the process returns to S40, and the processing when the tenth-order forward button 10 is continuously pressed is performed. As a result, while the tenth order forward button 10 is kept pressed, the channel numbers are sequentially advanced by 10 at intervals of time T.

In S43, the tenth order forward button 10
If it is detected that is not pressed, the process returns to S38 and waits until the next button is pressed.

In the above S39, the pressed button is 1
If it is not the 0th order forward button 10, it is determined whether or not the pressed button is the 1st place forward button 11 (S46).
If the pressed button is not the first place forward button 11, S
Return to step 38 and wait until the next button is pressed.

When the first place forward button 11 is pressed, the channel number is forwarded by one (S47), and the data of the channel number is transmitted to the tuner 3 and the channel number display section 6.
(S48).

Next, the counter t is set to 0 in order to measure the time (S49), and thereafter, it is determined whether or not the first place forward button 11 is kept pressed (S50). If the button is kept pressed, t is increased by 1 (S51), and it is checked whether or not t is longer than a predetermined time T (S52). t
If T is smaller than T, S50 and subsequent steps are repeated, and the first place forward button 11 is continuously depressed for a time T or longer.

If t is greater than T in S52, the process returns to S47 to perform the processing when the first place forward button 11 is continuously pressed. As a result, while the first place forward button 11 is kept pressed, the channel numbers are sequentially forwarded one by one at intervals of time T.

In S50, if it is detected that the first place forward button 11 has not been pressed, the process returns to S38 and waits until the next button is pressed.

By operating the microcomputer 5 in this manner, every time the tenth order forward button 10 is pressed for less than the time T, the channel number is sequentially advanced by ten channels. When the tenth order forward button 10 is pressed for more than the time T, the channel number is 1 at the time T interval.
It is forwarded by 0 at a time. On the other hand, every time the first place forward button 11 is pressed for less than the time T, the channel number is forwarded by one. When the first place forward button 11 is kept pressed for the time T or more, the channel number is forwarded one by one at intervals of the time T. You. As a result, the tenth and first places of the channel number can be operated independently.

In this embodiment, the tenth order forward button 1
Although 0 and the first-order forward button 11 are provided, the present invention is not limited to this combination.
It may be a combination of a button for operating the 0th place and a button for operating the first place of the channel number.

Next, in this embodiment, the relationship between the button operation and the channel to be selected will be described with reference to the operation example shown in FIG. Here, an example is described in which 55 channels are selected while viewing 10 channels, and then 10 channels are selected.

That is, in a state where ten channels are selected (operation step C1), if the tenth order forward button 10 is kept pressed, the channel numbers are sequentially advanced by 10 at intervals of the time T, and the number of channels is 20.30.・ ・
If you stop pressing the button, the channel numbers will not be incremented. Here, it is assumed that the operation is stopped at channel 50 (operation step C2).

Thereafter, the channel number is set to the target value of 55 by stopping the pressing of the first place forward button 11 at an appropriate time after the button is continuously pressed (operation step C3).

Next, when the tenth order forward button 10 is kept pressed while channel 55 is being selected, the channel numbers are 65, 75, 85, 95.5,.... If you stop pressing the button, the channel numbers will not be incremented. Here, it is assumed that the operation is stopped at channel 15 (operation step C4).

Thereafter, the first place forward button 11 is kept pressed for an appropriate period to set the channel number to the target value of 10 (operation step C5).

In this operation example, the time required for the operation steps C2 and C4 is shorter than the operation steps D3 and D7 in the operation example of the conventional example shown in FIG.

[0122]

As described above, the channel selection apparatus according to the first aspect of the present invention provides one channel each time the button for sequentially moving the channel number is pressed for less than a predetermined time.
Forward by channel, and the forward button is
When the button is pressed for more than a predetermined time, the channel number is set by moving forward multiple channels at a time, and the button to reverse the channel number is pressed for a predetermined time.
Each time the button is pressed for a shorter time, it reverses by one channel.
When the button for reverse feed is pressed for more than the predetermined time, the apparatus is provided with a channel number setting means for setting the channel number by performing reverse feed for a plurality of channels.

As a result, it is possible to reduce the time and operation required for the operation of selecting a channel, as compared with the conventional case where the channel is continuously forward-forwarded or backward-forwarded one by one.

When the channel numbers are continuously changed, the time required for the operation and the operation can be reduced without shortening the time interval at which the channel numbers change. As a result, it is easy to stop the change of the channel number at a desired position when the channel number is continuously changed, and when trying to increase or decrease for each channel, a plurality of channels are increased or decreased at once. Never.
Further, it is easy to watch the channel being increased or decreased on a television or the like, and the channel can be selected by estimating the channel number according to the content of the broadcast.

In addition, it is not necessary to increase the number of buttons for operating channels.

Thus, the operation and time required for selecting a channel can be reduced while holding the operation unit which is easy to understand and operate.

The channel selecting apparatus according to the second aspect of the present invention has a configuration in which the number of the plurality of channels is ten.

Since the channel number changes by 10 each time, 1
Only the tens digit in the 0-ary display changes, and it is easy to predict the next changing channel number.

As a result, in addition to the effect of the first aspect of the invention, there is an effect that the operability is further improved.

[0130] The channel selection device according to the third aspect of the present invention is the channel selection device according to the first or second aspect of the present invention,
Button to advance the channel number and reverse the channel number
When the button for sending is simultaneously pressed, a band switching means for switching the selected band to another band is provided.

As a result, the effect of the invention of claim 1 or 2
In addition to this, it is not necessary to separately provide a button for switching the band, so that the operation unit can be simplified. Further, when the operation of switching the band and the operation of changing the channel number are performed continuously, the operation can be performed without releasing the button for operating the channel, so that the operability is improved.

In addition, the time and operation required for selecting a channel in a band different from the band of the channel currently being viewed can be reduced.

Thus, the effect of further simplifying the operation section, the effect of improving the operability, and the effect of being able to select an arbitrary channel in a short time are provided.

The channel selecting apparatus according to a fourth aspect of the present invention is the channel selecting apparatus according to the third aspect of the present invention, wherein the band switching means switches between the UHF band and the VHF band.

Therefore, it is possible to reduce the operation and time required for switching the band between the UHF band and the VHF band, which occurs most frequently, and to surely switch the band.

As a result, in addition to the effect of the third aspect, the effect of further improving the operability and the effect of being able to select an arbitrary channel in a shorter time are exhibited.

[Brief description of the drawings]

FIG. 1 is a flowchart showing one embodiment of a channel selection operation in a channel selection device according to the present invention.

FIG. 2 is an explanatory diagram showing an operation example at the time of channel selection using a forward button and a backward button provided in the channel selection device.

FIG. 3 is a flowchart showing a channel selection operation and a band switching operation as another embodiment of the channel selection device.

FIG. 4 is an explanatory diagram showing an example of a channel selection operation and a band switching operation using a forward button and a backward button provided in the channel selection device.

FIG. 5 is a flowchart showing a channel selection operation by a tenth-order forward button and a first-order forward button as still another embodiment in the channel selection apparatus.

FIG. 6 is an explanatory diagram showing an operation example at the time of channel selection using the 10th-order forward button and the 1st-order forward button provided in the channel selection device.

FIG. 7 shows an embodiment of the present invention, and (a)
Is an explanatory diagram showing a configuration of a main part of the channel selection device,
(B), (c) is explanatory drawing which shows the structural example of a channel number operation button.

FIG. 8 is a flowchart showing a conventional channel selection operation.

FIG. 9 is an explanatory diagram showing an operation example at the time of conventional channel selection.

[Explanation of symbols]

1 channel selection device 5 microcomputer (channel number setting means;
Band switching means) 7 channel number operation button 8 forward button (button to forward channel number) 9 reverse button (button to reverse channel number) 10 10th forward button (button to operate 10th channel number) 11 1st place forward button (button to operate the 1st place of channel number)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H03J 7/18 H03J 5/02 H04N 5/44

Claims (4)

(57) [Claims] In a channel selecting apparatus having a button for sequentially forwarding a channel number and a button for backwardly forwarding a channel number, the button for sequentially forwarding a channel number is predetermined.
Each time it is pressed for less than the time, it will advance one channel at a time,
When the forward button is pressed for more than the predetermined time, a channel number is set by sequentially feeding a plurality of channels, and a button for reversely feeding the channel number is set at a predetermined time. Each time it is pressed briefly
Reverse feed one channel at a time.
A channel selection device comprising channel number setting means for setting a channel number by reversely feeding a plurality of channels each time the button is pressed for a predetermined time or more . 2. The channel selection device according to claim 1, wherein the number of said plurality of channels is ten. 3. A button for sequentially moving the channel number
3. The apparatus according to claim 1, further comprising band switching means for switching the selected band to another band when the button for reversely feeding the channel number is pressed simultaneously . Channel tuning device. 4. The apparatus according to claim 1, wherein said band switching means comprises a UHF
The channel selection device according to claim 3, wherein the band and the VHF band are switched with each other.