JPH051151Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a preset device suitable for application to a receiver equipped with a synthesizer tuner, a compact disk (CD) performance device, and the like.

[Prior Art] For example, in a receiver equipped with a synthesizer tuner (such as an AM receiver), in order to take advantage of the characteristics of the synthesizer tuner, it is possible to directly select a broadcast station to be received. In this case, there is a one-to-one relationship between the preset keys and the broadcast stations to be received, and one preset key has one
Only one station can be preset.

Therefore, if there are N preset keys,
The number of broadcast stations that can be preset in advance is N.

[Problems to be Solved by the Invention] Incidentally, as the number of broadcasting stations tends to increase in recent years, the number of stations to be preset also tends to increase accordingly.

However, as mentioned above, there is always a one-to-one relationship between the number of broadcast stations that can be preset and the preset keys used to select them, so as the number of broadcast stations to be received increases, the number of preset keys should also increase accordingly.

However, it is impossible to expand the preset keys to correspond to the number of broadcast stations that can be received. This is because, in addition to the disadvantage that the operation becomes complicated as the number of preset keys increases, it is almost impossible to install as many preset keys as possible to preset all broadcast stations on the operation panel of a certain specified area.

In order to solve these drawbacks, we have developed a numeric keypad (10
It is conceivable to provide a key) on the operation unit. this
If you use the 10 keys, there is a preset ability that can accommodate a large number of broadcast stations to receive.

However, when presetting a broadcast station, it is of course necessary to operate the memory keys, so if you want to preset a broadcast station with 2 digits or more, in addition to operating the memory keys, press the 10 key at least twice. The disadvantage is that the above operations are required and the operations become complicated.

This drawback is not limited to receivers equipped with synthesizer tuners, but also exists in, for example, CD players and the like.

This is because modern CD playing devices allow the selection of over 20 stations, so in order to directly select one of these stations, a certain number of preset keys are required. In this case as well, 10 keys are prepared and it is possible to select a specific song by selectively using those keys, but even in this case, the operability is such that multiple keys have to be operated. The complexity cannot be avoided.

Therefore, this invention solves these conventional problems with a simple structure, and proposes a preset device for selecting channels, playing music, etc., which reduces the number of preset keys and improves key operability. .

[Means for Solving the Problems] In order to solve the above-mentioned problems, this invention has a plurality of preset keys, and information in different areas is read out depending on the length of time the same preset key is held down. It is characterized by what has been done.

[Example] Next, an example of the preset device according to this invention will be described below.
The application to a receiver will be described in detail with reference to FIG. 1 and subsequent figures.

FIG. 1 is a system diagram showing an example of a synthesizer type AM receiver 10 in which this invention is applied to a channel selection device.

1 is a high frequency amplifier circuit, and 2 is a mixer. A synthesizer tuner 20 configured as a PLL is connected to the mixer 2.

3 is an intermediate frequency amplifier circuit, 4 is an AM detector, 5 is a low frequency amplifier, and 6 is a speaker.

The synthesizer tuner 20 has a PLL configuration. Therefore, it has a fixed reference oscillator 21 and a variable oscillator 22, and the output of the variable oscillator 22 is supplied to the mixer 2 as its local oscillation signal.
The voltage is supplied to the programmable divider 23, the divider output and the reference oscillation output of the reference oscillator 21 are phase-compared in the phase comparator 24, and the phase comparison output is supplied as a voltage control signal to the variable oscillator 22 via the low-pass filter 25. .

The programmable divider 23 is supplied with a command signal necessary for receiving a predetermined broadcast station from the microcomputer 30 that controls various controls of the AM receiver 10, and the programmable divider 23 is programmed according to the command signal. Value is controlled.

When a broadcast station is received, the signal detector 40 amplifies and detects a high frequency signal changed to an intermediate frequency, and outputs the presence or absence of the broadcast station.

The microcomputer 30 receives key inputs from the operating section 31 as shown in FIG.

In this example, the operation section 31 is composed of 10 preset keys P0 to P9 and a memory key M, and depending on the state of these key inputs, it can be used to preset a channel or call up a preset channel. Execution will take place.

Display section 3 in relation to microcomputer 30
2 is provided, and a buzzer (including its drive circuit) 33 is connected.

The buzzer 33 functions as an operation confirmation means. Instead of this buzzer 33, or this buzzer 33
In addition, the display section 32 may be configured to function as an operation confirmation means. In the embodiment, the confirmation means consists only of the buzzer 33.

Based on a command from the microcomputer 30, for example, when the channel is in memory mode, a memory display of "MEMORY" is displayed on the display section 32, and a number of buzzers corresponding to the operation time of the preset key are emitted. It is made so that it can be done.

That is, in this invention, information corresponding to different areas is read out depending on the length of operation time of the same preset key.

Further, the buzzer 33 is configured to emit a confirmation sound indicating the cumulative unit time for each unit time. As the unit time, it is sufficient to recognize a time of about one second, and therefore, the number of times the buzzer sounds differs every second. In this case, the first second is a single buzzer sound, the second second is a two-time buzzer sound, and the same number of confirmation sounds are emitted according to the unit time. .

Even when presetting multiple receiving stations using different preset keys, a confirmation tone is emitted when the unit time has elapsed so that the desired broadcast station can be preset in a different area for each unit time. be given

FIG. 3 is a diagram showing the relationship between such a confirmation sound and operation time, and shows four preset keys P0, P1, P2 and P9 as examples. If the operation time is within 1 second, a confirmation sound is emitted once, and if the operated preset key is P0, the corresponding broadcast station is preset to a specific address P00. Therefore, if it is 2 seconds, the address to be preset is changed to P10, and similarly, if it is 3 seconds, the address to be preset is changed to P20.
will be changed to.

Therefore, if the configuration is such that channels can be preset for, for example, three unit times, a maximum of 30 broadcast stations can be preset using a total of 10 preset keys.

FIG. 4 and subsequent figures are flowcharts showing an example of a control program showing a preset process and a read process thereof.

First, the preset processing operation of the broadcasting station will be explained with reference to FIG.

FIG. 4 is a flow chart showing an example of a control program 50 for accomplishing this preset processing. When this control program is started, a broadcasting station to be preset is first selected (step 51). This channel selection operation may be performed either manually or by auto scan operation.

When the channel selection operation is completed, the operating state of the memory key M is checked, and if the memory key M is not operated, a series of operations corresponding to other key operations are started (steps 52, 53). Further, when the memory key M is operated, the process shifts to channel preset processing.

That is, in this case, the memory is displayed on the display section 32 and the memory is prepared for writing. After that, preset keys P0 to P9 are read (step 54,
55). And these preset keys P0 to P9
The operating status of is checked. If no operation is performed after a predetermined period of time has elapsed, the memory display is turned off and the memory write mode is canceled (steps 56, 57).

On the other hand, if any key is pressed, the process moves to preset processing steps 70A to 70J. Therefore, first, it is checked which preset key has been pressed, and if the preset key P0 has been pressed, the first preset processing step 70A is performed.
to move to.

In this case, when the preset key P0 is pressed, the operation time of the key is checked.
If the time is within 10 seconds, a confirmation sound is issued once and the selected frequency is written into address P00 (steps 71-73).Then, the memory display goes off (step 70).

On the other hand, if the key operation time exceeds the unit time, and the key operation time is within 2 seconds, a confirmation tone will be emitted twice in succession, and the newly selected frequency will be switched to a different frequency. Address P10
will be written to. (Steps 74-76).

If the key operation time is 2 seconds or more, a confirmation sound is emitted three times in succession, and the newly selected frequency is written to another address P20 (steps 77-78). Thereafter, the memory display turns off (step 70).

When the preset key P0 is pressed in this way, the corresponding preset processing step 70A is executed.
is called, and the corresponding tuned frequency is written to the address corresponding to the key operation time.

Therefore, when the preset key P0 is not operated, it is checked in step 61, and when it is the preset key P1, the process moves to the corresponding preset process step 70B, and the corresponding write process is executed. In this case, as shown in Figure 3, the address is P0.
1, P11, and P21, and the other processing is the same as the preset processing step 70A, so a description thereof will be omitted.

Further, when the preset key P2 is operated, the process similarly moves to the preset processing step 70C, and similar writing processing is executed.

This kind of preset processing is the preset key P.
It is executed up to 9. When the preset key P8 is operated, it is checked in step 68, and the process moves to the corresponding processing step 70, and the preset key P0 to P8 is checked.
If a key other than one of the keys 8 is operated, it is determined that the key is the preset key P9, and the process proceeds to step 70J.

By going through this series of preset processing steps, you can use up to 10 preset keys to
30 stations can be preset.

FIG. 5 shows an example of a control program 80 for reading out each broadcast station preset in this manner.

First, after initialization of preset keys P0 to P9 is set, reading of these keys is executed (steps 81 and 82). Then, the on state of these keys is checked, and if no operations are performed on any keys, the presence or absence of memory key operations is checked (steps 83 and 84), and when no memory keys are operated, operations other than preset keys and memory keys are handled. The selected key operation will be executed (step 53).

On the other hand, when the memory key is operated, the process moves to a preset processing routine 50 shown in FIG.

Now, when any one of the preset keys P0 to P9 is operated, the reading of the corresponding address differs depending on which key was operated. Also in this case, read processing steps 100A to 1 related to the operated preset key
There is 00J.

First, when preset key P0 is operated in step 90, the operation time is checked;
If it is within 1 second, a confirmation tone is emitted once, the frequency of the address P00 corresponding to this is read out, and the broadcasting station of that frequency is received (steps 90, 101-103).

Similarly, if the time is within 2 seconds, a confirmation tone is emitted twice, the frequency of address P10 is read out, and channel selection is executed (steps 104 to 106). If it is within 3 seconds, three confirmation tones are output in succession, the frequency stored in address P20 is read out, and the broadcast station is received (steps 107-108).

This is the details of the read processing step 100A for preset key P0.

Similarly, in response to the operation of each preset key P1 to P9, the frequency stored in each address is read out, and the broadcasting station corresponding to that frequency is placed in the receiving state (steps 91 to 98 and read processing step 100B). ~100J).

In this way, specific information written at different addresses can be read out depending on the length of time the same preset key is operated.

In the above description, this invention is applied to a channel selection device for a receiver having a synthesizer tuner, but as mentioned above, it can also be applied to a device for selecting music programs such as a CD playing device. It's easy to understand.

In addition, in the above description, the operation time is exemplified as 3 seconds or less, but it is also possible to set a longer time than this.

Furthermore, although a case has been described in which sound is used as a confirmation means, the operation time or the like may be displayed so that the user can watch it silently.

[Effects of the invention] As explained above, according to this invention, information is written in different areas depending on the elapsed time of the operation, depending on how long or short the same preset key is held down. It was designed so that

According to this configuration, the number of stations that can be preset can be increased without increasing the number of preset keys. Furthermore, since the same preset key is simply operated and information stored in a plurality of areas is read out depending on the length of the operation time, the operability is very simple.

Therefore, the preset device according to the present invention is extremely suitable for application to the channel selection device of a receiver equipped with a synthesizer tuner, the channel selection device of a CD playing device, etc. as described above.

[Brief explanation of drawings]

Figure 1 is a system diagram showing an example of the case where the preset device according to this invention is applied to an AM receiver equipped with a synthesizer tuner, Figure 2 is a diagram showing the arrangement of keys on the operation section, and Figure 3 is a diagram showing the preset keys. FIG. 4 is a flowchart showing an example of the preset processing step, and FIG. 5 is a flowchart showing an example of the preset information reading processing routine. 10...AM receiver, 20...synthesizer tuner, 30...microcomputer, 31...
...Operation unit, 32...Display unit, 40...Signal detector, 33...Buzzer, P0 to P9...Preset keys.

Claims (1)

[Scope of Claim for Utility Model Registration] The above-mentioned utility model has a memory for storing information such as receiving stations and music to be performed, a memory key for specifying the state of writing to this memory, and a plurality of preset keys for presetting receiving stations, music for performance, etc. When a memory key is operated, the receiving station, music, etc. are preset in different memory areas depending on how long the same preset key is held down, and different memories are stored depending on how long the same preset key is held down A preset device characterized in that it is possible to call up the receiving stations, performance songs, etc. stored in the area.