KR20000074154A - Method for radio tunning - Google Patents

Abstract

PURPOSE: A method for tuning radio stations is provided to make one functional button replace three broadcasting station tuning modes and to generate a beep signal before a seek time is started when three composite functions are performed, so that a user can easily recognize a present functional mode. CONSTITUTION: If a tune up/down key is pressed, a micro computer retrieves time to take while the key is pressed. If the time is under a preset time for deciding functions, the micro computer converts a mode into a manual up/down functional mode and performs frequency up/down processes as one step, to tune a radio station. If the time is over the preset time, the micro computer generates a beep signal during a predetermined time and confirms whether the tune up/down key is off. If the tune up/down key is pressed after generating the beep signal, the micro computer converts the mode into a speed manual up/down functional mode to tune a radio station. If the tune up/down key is off, the micro computer converts the mode into a seek up/down functional mode and tunes a radio station with a seek up/down function.

Description

Radio tuning method {Method for radio tunning}

The present invention relates to a radio tuning method, and in particular, a radio station tuning function such as a manual tuner up / down function, a fast tuner up / down function, and a seek up / down function can be performed by one button operation. It relates to a radio tuning method.

In general, a conventional broadcasting station tuning method for tuning a broadcasting station in an electronically tuned radio (ETR) is as follows.

First, there is a method of tuning a broadcasting station by moving the frequency by one step according to the operation of the manual up / down key, and by pressing the manual up / down button continuously, the manual speed up / down can be used to quickly change the frequency. There is a method of moving and tuning a broadcast station.

There is also a way to automatically seek and tune to stations above the seek sensitivity level by pressing the seek up / down buttons.

In addition, another tuning method is a method of tuning a broadcast station by repeating a process of listening to a broadcast above a seek sensitivity level for a predetermined time by a scan up / down button.

However, in the conventional broadcasting station tuning method as described above, the above-mentioned multiple tuning functions are selected by using the respective buttons. In this case, the size of the device is increased due to the large number of buttons, and the buttons are each configured, which makes the operation inconvenient. It follows.

In particular, in the case of a car car audio, a lot of radio listening while driving, in this case there are a lot of buttons to operate because there is a risk of causing an accident when selecting a radio station.

Therefore, the present invention has been proposed to solve various problems that occur when tuning the conventional radio station as described above,

SUMMARY OF THE INVENTION An object of the present invention is to provide a radio tuning method in which a radio station tuning function such as a manual tuner up / down function, a fast tuner up / down function, and a seek up / down function can be performed with one button. There is.

The present invention for achieving the above object,

If a TUNE up / down key is pressed, searching for a time at which the key is pressed;

If the time when the tune up / down key is pressed is less than or equal to a preset time for function determination, switching to the manual up / down function mode and tuning by up / down executing the frequency step by step;

Generating a beep signal for a predetermined time when the time for which the tune up / down key is pressed is greater than or equal to the set time and checking whether the tune up / down key is off;

If the tune up / down key is pressed after the beep signal is generated, switching to the speed manual up / down function mode and tuning a broadcast station with the speed manual up / down function;

When the tune up / down key is turned off after the beep signal is generated, switching to the seek up / down function mode is performed, and tuning a broadcast station with the seek up / down function is performed.

The method may further include automatically performing a seek up / down function mode when the tune up / down key is turned off while the manual manual up / down function is performed, and ending the tuning of a broadcasting station.

1 is a schematic configuration diagram of a radio receiver system to which the present invention is applied;

2 is a flowchart showing a radio tuning method according to the present invention;

3 is an explanatory diagram for explaining a process of finding an arbitrary frequency in the present invention;

<Explanation of symbols for the main parts of the drawings>

2: tuner

3: key input unit

4: Micom

8: Beep signal generator

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above in detail.

1 is a block diagram of a radio receiver system to which the present invention is applied.

As shown therein, the key input unit 3 inputs a function signal such as broadcasting station tuning, volume control, radio on / off, etc., and the microcomputer 4 is tuned according to a function selected by the key input unit 3. It outputs a control voltage, outputs a volume control signal, counts the on time of the manual up / down keys, determines a mode corresponding to the corresponding key, and controls the entire radio tuning process according to the determination mode.

The tuner 2 then tunes the high frequency received by the antenna 1 according to the tuning voltage obtained by the microcomputer 4 and outputs the intermediate frequency of the corresponding channel.

In addition, the electronic volume 5 adjusts the volume of the audio output from the tuner 2 according to the control of the microcomputer 4, and the amplifier 6 controls the audio level obtained from the electronic volume 5 at a predetermined level. Amplifies the signal to the speaker 7 and transmits the beep signal generated by the beep signal generator 8 to the speaker 7 under the control of the microcomputer 4.

2 is a flowchart illustrating a radio tuning method according to the present invention, which is software performed by the microcomputer 4 when radio stations are tuned.

As shown in the figure, when the TUNE up / down key is pressed, searching for the time when the key is pressed (S11 to S12), and the time when the tune up / down key is pressed in advance for function determination. If the time is less than the set time, switch to the manual up / down function mode, and select and tune by frequency up / down by 1 step (S13 to S14). Generating a beep signal for a predetermined time and checking whether the tune up / down key is turned off (S15 to S16), and if the tune up / down key is pressed after generating the beep signal, the manual manual up / down function is performed. In step S18 to S19, when the tune up / down key is turned off after the beep signal is generated, the user switches to the seek up / down function mode and seeks up. Station with up / down function Tuning step is made (S17).

According to the present invention made in this manner, first, when the tune up / down key provided in the key input unit 1 is pressed (S11), the microcomputer 4 counts the time for which the tune up / down key is pressed. Then, the counted time is compared with a preset reference time (0.5 seconds) in order to determine the broadcasting station tuning mode (S12).

As a result of the comparison, if the pressed time of the tune up / down key is less than or equal to the reference time (0.5 seconds), the user switches to the manual up / down function mode (S13), and up / down the broadcasting station frequency by one step as before. Tune to the broadcasting station (S14).

Next, if the pressed time of the tune up / down key exceeds the reference time, that is, if the pressed time of the tune up / down key is 0.5 seconds or more, the microcomputer 4 turns on the beep signal generator 8. By controlling for 0.1 second so that the beep signal is transmitted to the outside through the speaker (7) (S15).

The beep signal is generated here to inform the user that the seek up / down operation is performed.

Next, after the beep signal is generated, the operation state of the tune up / down key is checked (S16), and when the tune up / down key is turned off, the seek up / down function mode is automatically executed to select a broadcast station having a seek level or higher. Tuning automatically (S17).

On the contrary, if the tune up / down key is continuously pressed after the beep signal is generated, the user switches to the speed manual up / down function mode and performs a speed manual up / down function while the key is pressed to select a broadcasting station. (S18).

If the tune up / down key is turned off while the manual manual up / down function is performed as described above, the seek up / down function is automatically switched to perform the seek up / down operation again. (S19) (S17).

Figure 3 shows an example of a radio tuning method according to the present invention, assuming that the current frequency position is 87.5MHz, and that the user wants to find the station frequency is 101.9MHz, the tune up / down key Press to switch to manual up / down function mode unconditionally.

If the time for which the tune up / down key is pressed exceeds 0.5 seconds, a beep signal is generated for 0.1 second. Then, after checking the state of the tune up / down key, if the tune up / down key is pressed continuously, Switch to up / down mode to quickly search for frequencies. Then, when the tune up / down key is turned off in the 100 MHz band, it automatically switches to the seek up / down mode and finds a frequency of 101.9 MHz.

As described above, the present invention has the effect of replacing three broadcasting station tuning function modes with one function button (tune up / down button), and the beep signal before the seek start time in three complex functions. By generating them, the user can conveniently recognize the current function mode.

In addition, by switching to the seek up / down function mode immediately after fast tuning up / down, it is possible to quickly and easily tune into a desired broadcast. It is possible to reduce the size of the device by replacing three function buttons with a single button. There is a possible advantage.

Claims (2)

In the radio station tuning method, If a TUNE up / down key is pressed, searching for a time at which the key is pressed; If the time when the tune up / down key is pressed is less than or equal to a preset time for function determination, switching to the manual up / down function mode and tuning by up / down executing the frequency step by step; Generating a beep signal for a predetermined time when the time for which the tune up / down key is pressed is greater than or equal to the set time and checking whether the tune up / down key is off; If the tune up / down key is pressed after the beep signal is generated, switching to the speed manual up / down function mode and tuning a broadcast station with the speed manual up / down function; And switching to the seek up / down function mode when the tune up / down key is turned off after the beep signal is generated, and tuning a broadcast station with the seek up / down function. The method of claim 1, further comprising: terminating station selection after automatically performing a seek up / down function mode when the tune up / down key is turned off while the manual manual up / down function is performed. Radio tuning method to do.