JPH055697Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a preset type electronic tuning receiver having a last channel memory, and in particular to a preset type electronic tuning receiver in which the last channel memory is shared between the first band side and the second band side. Concerning electronically tuned receivers.

<Prior Art> FIG. 3 is a diagram for explaining a conventional preset type electronic tuning receiver having a last channel memory.

In the figure, 1 to 6 are channel selection switches, and 7 is a band selection switch. These switches are used to broadcast six stations on each of the first and second bands within the same band (for example, within the FM band). You can now select a station. Numeral 8 is a preset key for setting the preset mode, and numeral 9 is a seek key, which when pressed performs automatic channel selection.
The reason why the FM band is divided into the 1st and 2nd bands and six stations can be preset selected for each band is because FM broadcasting has become popular in Europe and there are so many FM stations. This is to facilitate channel selection.

RAM is a last channel memory (LCM) 11 that stores the last broadcast station in the first and second bands selected by the switches 1 to 6.
It also has a preset memory 21 for storing specific broadcast stations selected by the channel selection switches 1-6. Note that 11a is the last channel memory corresponding to the first band side, 11b is the last channel memory corresponding to the second band side, and 21a to 21a are the last channel memories corresponding to the second band side.
26a is a preset memory corresponding to the first band side, and 21b to 26b are preset memories corresponding to the second band side.

In order to receive a predetermined broadcasting station with such a conventional preset type electronic tuning receiver, the band (first band, second band) to which the broadcasting station belongs is selected by the band selection switch 7, and then the broadcasting station is All you have to do is press the preset channel selection switches 1-6. However, in order to perform such preset tuning, it is necessary to preset the broadcasting stations in the first band and the broadcasting stations in the second band in each of the tuning switches 1 to 6 in advance.

FIG. 4 is a flowchart illustrating the presetting procedure of the preset type electronic tuning receiver shown in FIG.

First, the preset key 8 is operated to enter the preset mode (step 100), and the band selection switch 7 is operated to select a desired band from the first band and the second band (step 100). Next, it is determined whether the first band side or the second band side is selected (step
102), if the first band side is selected, the broadcast station stored in the last channel memory 11a is called up and received (step 103).

It is determined whether the broadcasting station at this time is the desired one (step 104), and if it is not, the desired station is received using seek key 9 (step 105).
Save the desired station frequency to the last channel memory 11a.
(Step 106).

Next, if you want to set the currently received broadcasting station on the tuning switch 1, press the tuning switch 1 to set the reception frequency stored in the last channel memory 11a to the preset according to the tuning switch 1. It is preset in the set memory 21a (step 107).

Note that if the broadcasting station is the desired station in step 104, the preset is immediately performed in step 107.

After that, it is checked whether the preset to the channel selection switch is completed (step 108), and if it is not completed, repeat the process from step 101 onwards. If it is not completed, press the preset key 8 to cancel the preset mode. (Step 109) to end the preset.

On the other hand, if the second band side is selected in step 102, the last channel memory 11b
The broadcast station stored in the broadcast station is called up and received (step 110).

It is determined whether the broadcasting station at this time is the desired one (step 111), and if it is not, the desired station is received using seek key 9 (step 112).
Save the desired station frequency to the last channel memory 11b
(Step 113).

Next, if you want to set the currently received broadcasting station on the tuning switch 1, press the tuning switch 1 to set the reception frequency stored in the last channel memory 11b to the preset according to the tuning switch 1. Preset to the set memory 21b (step
114), and thereafter repeats the processing from step 108 onwards.

The conventional preset electronic tuning receiver described above can select two broadcast stations in the same band, one on the first band side and one on the second band side, with the same tuning switch, without increasing the number of tuning switches. The number of preset stations can be increased.

<Problems to be Solved by the Invention> However, in areas where there are few broadcasting stations that can be received, there may be cases where six broadcasting stations are sufficient to store in the preset memory 21. In such a case, in order to easily perform the channel selection operation, the same broadcasting stations as those on the first band side are preset in the preset memories 21b to 26b on the second band side, regardless of whether they are on the first band side or the second band side. Channel selection switch 1~
There was a request from users that they wanted to unify the broadcast stations that can be selected using 6.

However, in the conventional preset type electronic tuning receiver, it has not been possible to preset the same broadcast station in the preset memories on the first and second band sides.

In view of the above, an object of the present invention is to provide a preset type electronic tuning receiver that can preset the same broadcasting station in the preset memory of the first band side and the second band side, and improves the operability of channel selection. be.

Another object of the present invention is to provide a preset-type electronic device that allows the first and second band sides to share the last channel memory and to preset the same broadcast station in the preset memory of the first and second band sides with a simple operation. An object of the present invention is to provide a tuned receiver.

<Means for Solving the Problems> According to the present invention, the above problems are solved by a last channel memory that stores the broadcasting station that was being received before the band switching after the band is switched by the band selection switch, and a last channel memory that stores the broadcast station that was being received before the band switching after the band is switched by the band selection switch. a reception control means for receiving a broadcast station stored in the last channel memory; and a reception control means for receiving a broadcast station stored in the last channel memory by a preset operation, and selecting a designated selection as a broadcast station on the side of the band switched by the band selection switch. This is accomplished by presetting means assigned to the switch.

<Function> The broadcasting station that was being received before the band switching by the band selection switch is stored in the last channel memory, and after the band switching, the broadcasting station stored in the last channel memory is received, and the preset operation The broadcasting station stored in the channel memory is assigned to the designated channel selection switch as the broadcasting station on the side of the band switched by the band selection switch.

In this way, even if you preset a broadcast station in the preset memory for one band and then switch to the other band using the band selection switch, you can still receive the broadcast of the preset station. This allows the broadcast station to be preset in the other band's preset memory as a broadcast station on the other band side, and the contents of the first and second band side preset memories can be made the same with a simple operation, improving the operability of channel selection. You can improve.

Furthermore, even if you preset a broadcast station on one band and then switch to the other band using the band selection switch, you can still receive the broadcast of the preset selected broadcast station. This broadcasting station can be preset in the preset memory of the other band as the broadcasting station of the other band, and the contents of the first and second band side preset memories can be made the same with a simple operation, improving the operability of channel selection. can.

<Embodiment> FIG. 1 is a block diagram of a preset type electronic tuning receiver showing an embodiment of the present invention, and the same parts as in FIG. 3 are given the same reference numerals.

In the figure, 1 to 6 are channel selection switches, and 7 is a band selection switch, which selects the first band side and the second band side within the same band. Numeral 8 is a preset key for setting the preset mode, and numeral 9 is a seek key, which when pressed performs automatic channel selection. 2
1 is a preset memory, and 31 is an operation section.

A control microcomputer 32 inputs frequency control data FCD corresponding to a predetermined frequency to a PLL circuit 36, which will be described later, by operating the channel selection switches 1 to 6 and operating the seek key 9.

33 is a last channel memory according to the present invention provided in the RAM, which stores the last broadcast station received through the first band side and the second band side selected by the band selection switch 7.

34 is a reception control means (reception control routine) according to the present invention provided in the control microcomputer 32, and causes the broadcast station stored in the last channel memory 33 to be received when the power is turned on or the band is switched.

Reference numeral 35 denotes a preset means (preset routine) according to the present invention provided in the control microcomputer 32, and when presetting broadcast stations to the channel selection switches 1 to 6, the last channel memory 33
The broadcast stations stored in the channel are assigned to the channel selection switches 1 to 6 designated by the preset operation.

The PLL circuit 36 is connected to the control microcomputer 32
According to the frequency control data FCD input from
A control signal for the local oscillation frequency of the tuner section 37 is output. The tuner unit 37 outputs the difference between the oscillation frequency of the built-in local oscillator and the reception frequency f from the antenna ANT, that is, an intermediate frequency component.
The intermediate frequency amplification circuit 38 amplifies the intermediate frequency component output from the tuner section 37 and outputs it to a subsequent stage detection circuit (not shown), while also amplifying the intermediate frequency component outputted from the tuner section 37 .
Also output to 9. The level detector 39 detects whether the output level of the amplified intermediate frequency has reached a predetermined level when the seek key 9 is pressed and automatic tuning is performed. Note that during up/down seek operation, the control microcomputer 32 does not control the frequency control data until a signal indicating output level OK is input from the level detector 39.
The FCD is varied by a predetermined frequency to the higher or lower frequency side.

FIG. 2 is a flowchart illustrating the presetting procedure of the preset type electronic tuning receiver of the present invention.

First, the preset key 8 is operated to enter the preset mode (step 200), and the band selection switch 7 is operated to select a desired band from the first band and the second band (step 201). Next, it is determined whether the first band side or the second band side is selected (step
202), if the first band side is selected, the broadcast station stored in the last channel memory 33 is called up and received (step 203).

It is determined whether the broadcasting station at this time is the one desired (step 204), and if it is not, the desired station is received using seek key 9 (step 205).
The frequency of the desired station is stored in the last channel memory 33 (step 206).

Next, if you want to set the currently received broadcasting station on the tuning switch 1, press the tuning switch 1 to set the reception frequency stored in the last channel memory 33 to the preset according to the tuning switch 1. Preset to the set memory 21a (step
207).

Note that if the broadcasting station is the desired station in step 204, the preset is immediately performed in step 207.

After that, it is checked whether the preset to the channel selection switch is completed (step 208), and if it is not completed, the process from step 201 is repeated, and if it is completed, the preset key 8 is pressed to cancel the preset mode. (Step 209) to end the preset.

On the other hand, in order to preset the same broadcasting station as the channel selection switch on the first band side to the channel selection switch on the second band side, the following operation is performed. That is, after presetting the first band broadcast station frequency to the channel selection switch 1, the band selection switch 7 presets the second band frequency.
Select a band. As a result, the answer is NO in step 202, and the first band broadcast station stored in the last channel memory 33 is read out and received (step 210).

It is determined whether the broadcasting station at this time is the desired one (step 211), and if it is the desired one, in other words, the broadcasting station to be selected with the channel selection switch 1 in the first band and the second band is determined. If you want to unify them, press the tuning switch 1 to preset the receiving frequency stored in the last channel memory 33 into the preset memory 21b corresponding to the tuning switch 1 (step 212), and then step 208.
Repeat the following process.

On the other hand, if it is not the desired station as determined in step 211, in other words, if the stations to be selected by the channel selection switch 1 are not unified in the first band and the second band, the desired station is received by the seek key 9. (Step 213), stores the frequency of the desired station in the last channel memory 33 (Step 214), and returns to Step 212.

In addition, in the above, the first and second
When presetting the same broadcasting station (broadcasting frequency) in the preset memory on the band side, but when the broadcasting station is already preset in the preset memories 21a to 26a of one band (referred to as the first band). , the same broadcasting station is stored in the preset memory 21b on the other band side (second band side).
To store in ~26b, do the following.

That is, after selecting the first band side with the band selection switch 7, a desired broadcasting station on the first band side is selected by preset tuning. At this time,
The frequency of the broadcast station is stored in the last channel memory 33. In this state, press band selection switch 7.
Then, the broadcast station stored in the last channel memory 33 is stored in the second band side preset memories 21b to 26b by a preset operation. Note that if a broadcast station has already been preset in the second band preset memories 21b to 26b, the same broadcast station can be preset in the first band side preset memory 21.
The same can be done when storing data in a to 26a.

As mentioned above, in the preset type electronic tuning receiver of the present invention, after the desired station is received on the first band side, when the band selection switch 7 switches to the second band side, the reception on the first band side starts. station is received. Therefore, the operation for selecting a desired reception station on the second band side can be omitted, and the preset operation can be simplified.

<Effects of the invention> According to the invention, in the preset mode, after presetting a broadcasting station in the preset memory of one band, even if the band selection switch is used to switch to the other band, the preset broadcasting You can receive the broadcast of a station, and by preset operation, you can preset that station as a broadcast station on the other band side in the preset memory of the other band, and you can easily change the contents of the first and second band side preset memories. can be made the same, improving the operability of channel selection.

Furthermore, according to the present invention, even if one presets a broadcasting station on one band and then switches to the other band using the band selection switch, the broadcast of the presetally selected broadcasting station can be received as is. Furthermore, by performing a preset operation, the broadcast station can be preset in the preset memory of the other band as a broadcast station on the other band side, and the contents of the first and second band side preset memories can be made the same with a simple operation. The operability of the station can be improved.

Furthermore, according to the present invention, in areas where there are few broadcast stations that can be received, the same broadcast station can be preset in the preset memory of the first band side and the second band side, so the desired broadcast station can be preset without operating the band selection switch. You can receive preset broadcast stations and improve operational performance.

Furthermore, according to the present invention, in the case of an area where there are many broadcast stations that can be received, different broadcast stations can be preset in the preset memory of the first band side and the second band side. After operating the selection switch and selecting the first and second bands,
A desired broadcast station can be preset received by operating a predetermined channel selection switch.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a preset type electronically tuned receiver showing one embodiment of the present invention, Fig. 2 is a flow chart explaining the preset procedure of the preset type electronically tuned receiver of the present invention, Fig. 3 is a diagram for explaining a conventional preset type electronically tuned receiver having a last channel memory, Fig. 4 is a flow chart explaining the preset procedure of the preset type electronically tuned receiver shown in Fig. 3. 1-6...station selection switch, 7...band selection switch, 32...control microcomputer, 33...
. . last channel memory, 34 . . . reception control means, 35 .

Claims (1)

[Claim for Utility Model Registration] Two broadcast stations on the first band side and the second band side within the same band are preset to the same tuning switch, and when the predetermined tuning switch is operated,
In a preset type electronic tuning receiver that selects and receives the broadcasting station in the band selected by the band selection switch out of the two broadcasting stations preset in the channel selection switch, after the band is switched by the band selection switch. a last channel memory for storing the broadcast station being received before band switching; a reception control means for receiving the broadcast station stored in the last channel memory after the band switching; 1. A preset type electronic tuning receiver comprising a preset means for assigning a broadcast station in a band selected by the band selection switch to a designated channel selection switch.